1. The utility model provides a pin form part feeding mechanism for fluorescent magnetic particle flaw detector which characterized in that: comprises a frame (1), a fixed bracket (2), a movable bracket (3) and a driving component (4);

the fixed bracket (2) comprises a fixed supporting plate (201) and a connecting plate (202); the number of the fixed supporting plates (201) is two, the fixed supporting plates (201) are arranged on the rack (1) in parallel at the same height through connecting plates (202), and placing grooves for placing workpieces are arranged on the fixed supporting plates (201) at equal intervals;

the movable bracket (3) comprises a movable supporting plate (301), a vertical guide rod (302), a transverse guide rod (303), a vertical guide sleeve (304), a transverse guide sleeve (305), a second bidirectional lead screw (306), a second bearing block (307), a second hand wheel (308), a first sliding rail (309), a first sliding block (310) and a first mounting plate (311); the movable supporting plates (301) are two, the sliding supporting plates are provided with placing grooves for placing workpieces at equal intervals, the interval between every two adjacent placing grooves is equal to the interval between every two adjacent placing grooves on the fixed supporting plate (201), the movable supporting plates (301) and the fixed supporting plates (201) are arranged in parallel, two vertical guide rods (302) are fixedly arranged below each movable supporting plate (301), a first sliding block (310) is fixedly arranged at the bottoms of the vertical guide rods (302), the first sliding block (310) is arranged on a first sliding rail (309) in a sliding mode, the direction of the first sliding rail (309) is perpendicular to the length direction of the movable supporting plate (301), and the first sliding rail (309) is fixed on the first supporting plate; the vertical guide rod (302) is sleeved with a vertical guide sleeve (304), a transverse guide rod (303) is fixedly mounted on the vertical guide sleeve (304), the direction of the transverse guide rod (303) is consistent with the length direction of the movable supporting plates (301), a transverse guide sleeve (305) is sleeved on the transverse guide rod (303), internal threads with different rotation directions are arranged on the transverse guide sleeve (305) connected with the two movable supporting plates (301), the transverse guide sleeve (305) is matched with a second bidirectional lead screw (306), the second bidirectional lead screw (306) is mounted on the upper rack (1) through a second bearing seat (307), the two second bidirectional lead screws (306) are connected through a chain wheel and a chain, and a second hand wheel (308) is mounted on one of the second bidirectional lead screws (306);

the driving assembly (4) comprises a second mounting plate (401), a first air cylinder (402), a second air cylinder (403), a second sliding rail (404) and a second sliding block (405); second mounting panel (401) are installed on middle level frame (1) through second slide rail (404) and second slider (405), second cylinder (403) horizontal installation is in second mounting panel (401) bottom, and drive second mounting panel (401) make lateral shifting relative frame (1), vertically install two first cylinders (402) on second mounting panel (401), the piston rod and the first mounting panel (311) of first cylinder (402) are connected, first cylinder (402) drive first mounting panel (311) make elevating movement relative second mounting panel (401).

2. The feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector according to claim 1, characterized in that: the fixed bracket (2) further comprises a first bidirectional lead screw (203), a first lead screw nut (204), a first bearing seat (205) and a first hand wheel (206); the connecting plate (202) bottom fixedly connected with first lead screw nut (204), the screw thread of the first lead screw nut (204) that two fixed layer boards (201) are connected revolves to the difference, first lead screw nut (204) and first two-way lead screw (203) cooperation, first two-way lead screw (203) are installed on upper rack (1) through first bearing frame (205), connect through sprocket and chain between two first two-way lead screw (203), install first hand wheel (206) on one of them second two-way lead screw (306).

3. The feeding mechanism for pin-shaped parts fluorescent magnetic powder flaw detector according to claim 1 or 2, characterized in that: when the second cylinder (403) retracts, the highest point of the movable supporting plate (301) is lower than the lowest point of the placing groove on the fixed supporting plate (201), and when the second cylinder (403) extends, the lowest point of the placing groove of the movable supporting plate (301) is higher than the highest point of the fixed supporting plate (201).

4. The feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector according to claim 3, characterized in that: the stroke of the first air cylinder (402) is not less than the distance between adjacent placing grooves on the fixed supporting plate (201).

5. The feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector according to claim 4, characterized in that: the whole section of the movable supporting plate (301) is L-shaped, and the front end of the movable supporting plate (301) close to the magnetic particle flaw detector feeding mechanism is vertical and flat.

6. The feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector according to claim 4, characterized in that: two hydraulic buffers (406) are also arranged between the first mounting plate (311) and the second mounting plate (401).

7. The feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector according to claim 4, characterized in that: the frame (1) is of a frame structure and is formed by welding square pipes.

Background

The magnetic powder flaw detection utilizes the interaction between the leakage magnetic field at the defect position of a workpiece and magnetic powder, and utilizes the difference between the magnetic conductivity of the surface and near-surface defects (such as cracks, slag inclusion, hairlines and the like) of a steel product and the magnetic conductivity of steel, so that the magnetic field at the discontinuous positions of the magnetized materials is distorted to form a leakage magnetic field on the surface of the workpiece at the position where partial magnetic flux leaks, thereby attracting the magnetic powder to form magnetic powder accumulation-magnetic marks at the defect position, showing the position and the shape of the defect under proper illumination conditions, and observing and explaining the accumulation of the magnetic powder, thereby realizing the magnetic powder flaw detection.

The existing pin-shaped part magnetic particle flaw detector generally needs to manually carry out feeding and discharging in the flaw detection process, magnetizes while spraying, stops magnetizing after stopping spraying, then rotates a workpiece, observes, finally carries out demagnetization, takes away the workpiece and finishes flaw detection, and in the process, the feeding and discharging are carried out manually, so that the automation degree is low.

Disclosure of Invention

The invention solves the problems that: the pin-shaped part magnetic particle flaw detector in the prior art has low automation degree and low flaw detection efficiency, and provides a feeding mechanism for the pin-shaped part fluorescent magnetic particle flaw detector.

The invention is realized by the following technical scheme that the feeding mechanism for the pin-shaped part fluorescent magnetic particle flaw detector comprises a rack, a fixed bracket, a movable bracket and a driving assembly;

the fixed bracket comprises a fixed supporting plate and a connecting plate; the fixed supporting plates are arranged on the rack in parallel at the same height through connecting plates, and the fixed supporting plates are provided with placing grooves for placing workpieces at equal intervals;

the movable bracket comprises a movable supporting plate, a vertical guide rod, a transverse guide rod, a vertical guide sleeve, a transverse guide sleeve, a second bidirectional lead screw, a second bearing seat, a second hand wheel, a first slide rail, a first slide block and a first mounting plate; the movable supporting plates are provided with two pieces, the sliding supporting plates are provided with placing grooves for placing workpieces at equal intervals, the interval between every two adjacent placing grooves is equal to the interval between every two adjacent placing grooves on the fixed supporting plates, the movable supporting plates and the fixed supporting plates are arranged in parallel, two vertical guide rods are fixedly arranged below each movable supporting plate, first sliding blocks are fixedly arranged at the bottoms of the vertical guide rods and are arranged on first sliding rails in a sliding mode, the direction of each first sliding rail is perpendicular to the length direction of the movable supporting plates, and the first sliding rails are fixed on the first supporting plates; the upper-layer rack is characterized in that a vertical guide sleeve is sleeved on the vertical guide rod, a transverse guide rod is fixedly mounted on the vertical guide sleeve, the direction of the transverse guide rod is consistent with the length direction of the movable supporting plates, a transverse guide sleeve is sleeved on the transverse guide rod, internal threads with different rotation directions are arranged on the transverse guide sleeves connected with the two movable supporting plates, the transverse guide sleeves are matched with a second bidirectional lead screw, the second bidirectional lead screw is mounted on the upper-layer rack through a second bearing seat, the two second bidirectional lead screws are connected through a chain wheel and a chain, and a second hand wheel is mounted on one of the second bidirectional lead screws;

the driving assembly comprises a second mounting plate, a first air cylinder, a second sliding rail and a second sliding block; the second mounting panel passes through the second slide rail and the second slider is installed in the middle level frame, second cylinder horizontal installation is in second mounting panel bottom, and the relative frame of drive second mounting panel makes lateral shifting, vertically on the second mounting panel install two first cylinders, the piston rod and the first mounting panel of first cylinder are connected, first cylinder drive first mounting panel is relative the second mounting panel and is made elevating movement.

In this scheme, the vertical and along its length direction's of movable layer board removal is driven by drive assembly, when initial position, movable layer board is less than fixed layer board, the equidistant placing in the standing groove of fixed layer board of work piece, then the extension of second cylinder, movable layer board is vertical to lift the work piece, then the extension of first cylinder, movable layer board drives the work piece and moves forward, the work piece that waits to detect is sent to the magnetization station, the work piece that has magnetized sends to the observation station, the work piece that finishes observing sends to the unloading station, then the withdrawal of second cylinder, all the other work pieces fall into the standing groove of fixed layer board again, accomplish once and advance, last first cylinder withdrawal, movable layer board returns initial position, wait for next duty cycle.

According to the scheme, the vertical guide rod, the horizontal guide rod, the vertical guide sleeve and the horizontal guide sleeve are arranged between the second bidirectional screw rod and the movable supporting plates, the movable supporting plates can move vertically and along the length direction of the movable supporting plates relative to the rack freely, when workpieces of different specifications are detected, the relative distance between the two movable supporting plates can be adjusted according to the length of the workpieces, and the operation can be completed by rotating the second hand wheel.

Furthermore, the fixed bracket also comprises a first bidirectional lead screw, a first lead screw nut, a first bearing seat and a first hand wheel; the connecting plate bottom fixedly connected with first lead screw nut, the screw thread of the first lead screw nut that two fixed layer boards are connected revolves to the difference, first lead screw nut and the cooperation of first bidirectional screw, first bidirectional screw passes through first bearing frame and installs on upper frame, connects through sprocket and chain between two first bidirectional screw, installs first hand wheel on one of them two bidirectional screw. In this scheme, the distance between two fixed layer boards also can be adjusted according to work piece length, rotates first hand wheel and can accomplish.

Further, when the second cylinder retracts, the highest point of the movable supporting plate is lower than the lowest point of the placing groove on the fixed supporting plate, and when the second cylinder extends, the lowest point of the placing groove of the movable supporting plate is higher than the highest point of the fixed supporting plate.

Further, the stroke of the first cylinder is not less than the distance between adjacent placing grooves on the fixed supporting plate.

Furthermore, the whole cross-section of the movable supporting plate is L-shaped, the rigidity of the movable supporting plate can be increased due to the L-shaped cross-section, the position, close to the magnetic particle flaw detector blanking mechanism, of the front end of the movable supporting plate is vertical and flat, and the movable bracket can conveniently stretch into the blanking mechanism of the magnetic particle flaw detector.

Further, in order to balance the load, two hydraulic buffers are arranged between the first mounting plate and the second mounting plate.

Further, for convenient processing, the frame is of a frame type structure and is formed by welding square pipes.

The invention has the beneficial effects that:

1. the vertical movement and the movement along the length direction of the movable supporting plate are driven by the driving component, in the initial position, the movable supporting plate is lower than the fixed supporting plate, the workpieces are placed in the placing grooves of the fixed supporting plate at equal intervals, then the second cylinder extends, the movable supporting plate vertically lifts the workpiece, then the first cylinder extends, the movable supporting plate drives the workpiece to move forwards, the workpiece to be detected is sent to a magnetization station, the magnetized workpiece is sent to an observation station, the workpiece after observation is sent to a blanking station, then the second cylinder retracts, all the other workpieces fall into the placing grooves of the fixed supporting plates again to finish one-time advancing, the first air cylinder retracts at last, the movable supporting plates return to the initial positions to finish one-time feeding, the feeding mechanism in the whole process runs fully automatically, multi-station feeding work is finished in one-time running, and the working efficiency is high.

2. The width between the two fixed supporting plates and the width between the two movable supporting plates can be adjusted to be proper according to the specification of the workpiece, and the adaptability is strong.

3. In the conventional design, if the second bidirectional lead screw is fixed on the first mounting plate through the second bearing and then fixedly connected with the first slide block through the lead screw bearing, however, when the second hand wheel is rotated, the whole first mounting plate can bear all external force when the second hand wheel is rotated, the first mounting plate is easy to shake, the second bidirectional screw rod for adjusting the movable supporting plate of the invention is rotationally connected with the frame, a vertical guide rod, a transverse guide rod, a vertical guide sleeve and a transverse guide sleeve are arranged between the second bidirectional screw rod and the movable supporting plate, the movable supporting plate can freely move vertically and along the length direction of the movable supporting plate relative to the frame, when the hand wheel is rotated, the frame bears other external forces, and only the horizontal external force for driving the movable supporting plate to close or separate is transmitted to the movable supporting plate, so that the feeding mechanism can run more safely and stably.

Drawings

FIG. 1 is a schematic structural diagram of a fluorescent magnetic particle flaw detector for pin-shaped parts according to the present invention;

FIG. 2 is a schematic structural diagram of a feeding mechanism for a pin-shaped part fluorescent magnetic powder flaw detector according to the present invention;

FIG. 3 is a front view of a feeding mechanism for a pin-shaped part fluorescent magnetic particle flaw detector according to the present invention;

FIG. 4 is a top view of a feeding mechanism for a pin-shaped part fluorescent magnetic powder flaw detector according to the present invention;

FIG. 5 is a schematic view of a stationary bracket according to the present invention;

fig. 6 is a schematic structural view of the movable bracket according to the present invention.

In the figure:

1, a frame;

2, a fixed bracket; 201 fixed supporting plate; 202 connecting plates; 203 a first bidirectional lead screw; 204 a first lead screw nut; 205 a first bearing seat; 206 a first handwheel;

3 a movable bracket; 301 a movable pallet; 302 vertical guide rods; 303 a transverse guide rod; 304 vertical guide sleeves; 305 a transverse guide sleeve; 306 a second bidirectional lead screw; 307 a second bearing housing; 308 a second handwheel; 309 a first slide rail; 310 a first slider; 311 a first mounting plate;

4 a drive assembly; 401 a second mounting plate; 402 a first cylinder; 403 a second cylinder; 404 a second slide rail; 405 a second slider; 406 hydraulic shock absorber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, a feeding mechanism for a pin-shaped part fluorescent magnetic particle flaw detector comprises a frame 1, a fixed bracket 2, a movable bracket 3 and a driving assembly 4;

the fixed bracket 2 comprises a fixed supporting plate 201 and a connecting plate 202; two fixed supporting plates 201 are arranged, the fixed supporting plates 201 are parallelly and equidistantly mounted on the rack 1 through connecting plates 202, and the fixed supporting plates 201 are provided with placing grooves for placing workpieces at equal intervals;

the movable bracket 3 comprises a movable supporting plate 301, a vertical guide rod 302, a transverse guide rod 303, a vertical guide sleeve 304, a transverse guide sleeve 305, a second bidirectional lead screw 306, a second bearing seat 307, a second hand wheel 308, a first slide rail 309, a first slide block 310 and a first mounting plate 311; the number of the movable supporting plates 301 is two, the sliding supporting plates are provided with placing grooves for placing workpieces at equal intervals, the interval between every two adjacent placing grooves is equal to the interval between every two adjacent placing grooves on the fixed supporting plate 201, the movable supporting plates 301 and the fixed supporting plates 201 are arranged in parallel, two vertical guide rods 302 are fixedly arranged below each movable supporting plate 301, the bottoms of the vertical guide rods 302 are fixedly provided with first sliding blocks 310, the first sliding blocks 310 are arranged on first sliding rails 309 in a sliding mode, the directions of the first sliding rails 309 are perpendicular to the length direction of the movable supporting plates 301, and the first sliding rails 309 are fixed on the first supporting plates; the vertical guide rod 302 is sleeved with a vertical guide sleeve 304, the vertical guide sleeve 304 is fixedly provided with a transverse guide rod 303, the direction of the transverse guide rod 303 is consistent with the length direction of the movable supporting plates 301, the transverse guide rod 303 is sleeved with a transverse guide sleeve 305, the transverse guide sleeves 305 connected with the two movable supporting plates 301 are provided with internal threads in different rotation directions, the transverse guide sleeves 305 are matched with second bidirectional lead screws 306, the second bidirectional lead screws 306 are arranged on the upper-layer rack 1 through second bearing seats 307, the two second bidirectional lead screws 306 are connected through chain wheels and chains, and one second bidirectional lead screw 306 is provided with a second hand wheel 308;

the driving assembly 4 comprises a second mounting plate 401, a first air cylinder 402, a second air cylinder 403, a second slide rail 404 and a second slide block 405; the second mounting plate 401 is mounted on the middle-layer rack 1 through a second sliding rail 404 and a second sliding block 405, the second air cylinder 403 is horizontally mounted at the bottom of the second mounting plate 401 and drives the second mounting plate 401 to move transversely relative to the rack 1, two first air cylinders 402 are vertically mounted on the second mounting plate 401, piston rods of the first air cylinders 402 are connected with the first mounting plate 311, and the first air cylinders 402 drive the first mounting plate 311 to move up and down relative to the second mounting plate 401.

In the scheme, the movable supporting plate 301 is driven by the driving assembly 4 to move vertically and along the length direction, when the movable supporting plate is at an initial position, the movable supporting plate 301 is lower than the fixed supporting plate 201, workpieces are placed in the placing groove of the fixed supporting plate 201 at equal intervals, then the second cylinder 403 extends, the movable supporting plate 301 lifts the workpieces vertically, then the first cylinder 402 extends, the movable supporting plate 301 drives the workpieces to move forwards, the workpieces to be detected are sent to the magnetization station, the magnetized workpieces are sent to the observation station, the workpieces after observation are sent to the blanking station, then the second cylinder 403 retracts, other workpieces fall into the placing groove of the fixed supporting plate 201 again, one-time advancing is completed, finally the first cylinder 402 retracts, the movable supporting plate 301 returns to the initial position, and waits for the next working cycle.

According to the scheme, the vertical guide rod 302, the horizontal guide rod 303, the vertical guide sleeve 304 and the horizontal guide sleeve 305 are arranged between the second bidirectional screw rod and the movable supporting plate, the movable supporting plate 301 can freely move vertically relative to the rack 1 and along the length direction of the movable supporting plate, when workpieces of different specifications are detected, the relative distance between the two movable supporting plates 301 can be adjusted according to the length of the workpieces, and the operation can be completed by rotating the second hand wheel 308.

In practical applications, the fixed bracket 2 further includes a first bidirectional lead screw 203, a first lead screw nut 204, a first bearing seat 205, and a first hand wheel 206; the bottom of the connecting plate 202 is fixedly connected with a first lead screw nut 204, the thread turning directions of the first lead screw nuts 204 connected with the two fixed supporting plates 201 are different, the first lead screw nuts 204 are matched with first bidirectional lead screws 203, the first bidirectional lead screws 203 are installed on the upper rack 1 through first bearing blocks 205, the two first bidirectional lead screws 203 are connected through chain wheels and chains, and a first hand wheel 206 is installed on one second bidirectional lead screw 306. In this scheme, the distance between two fixed layer boards 202 also can be adjusted according to work piece length, rotates first hand wheel and can accomplish.

In practical applications, when the second cylinder 403 retracts, the highest point of the movable supporting plate 301 is lower than the lowest point of the placing groove on the fixed supporting plate 201, and when the second cylinder 403 extends, the lowest point of the placing groove of the movable supporting plate 301 is higher than the highest point of the fixed supporting plate 201.

In practical applications, the stroke of the first cylinder 402 is not less than the distance between adjacent slots on the fixed pallet 201.

In practical application, the whole cross-section of movable layer board 301 is L shape, and the rigidity of movable layer board 301 can be increased to L shape cross-section, movable layer board 301 front end is close to magnetic particle flaw detector unloading mechanism department and is vertical flat plate-shaped, makes things convenient for movable bracket 301 to stretch into in magnetic particle flaw detector's the unloading mechanism.

In practical applications, two hydraulic buffers 406 are also installed between the first mounting plate 311 and the second mounting plate 401 for load balancing.

In practical application, in order to facilitate processing, the frame 1 is of a frame type structure and is formed by welding square pipes.

The working principle of the invention is as follows:

the vertical movement and the movement along the length direction of the movable supporting plate 301 are driven by a driving component 4, when the movable supporting plate 301 is at an initial position, the movable supporting plate 301 is lower than the fixed supporting plate 201, workpieces are placed in a placing groove of the fixed supporting plate 201 at equal intervals, then the second air cylinder 403 extends, the movable supporting plate 301 lifts the workpieces vertically, then the first air cylinder 402 extends, the movable supporting plate 301 drives the workpieces to move forwards, the workpieces to be detected are sent to a magnetization station, the magnetized workpieces are sent to an observation station, the workpieces after observation are sent to a blanking station, then the second air cylinder 403 retracts, other workpieces fall into the placing groove of the fixed supporting plate 201 again, one-time advancing is completed, finally the first air cylinder 402 retracts, the movable supporting plate 301 returns to the initial position, and waits for the next working cycle.

A vertical guide rod 302, a transverse guide rod 303, a vertical guide sleeve 304 and a transverse guide sleeve 305 are arranged between the second bidirectional screw rod and the movable supporting plate, the movable supporting plate 301 can freely move vertically and along the length direction of the rack 1, when workpieces with different specifications are detected, the relative distance between the two movable supporting plates 301 can be adjusted according to the length of the workpieces, and the detection can be completed by rotating the second hand wheel 308. The distance between the two fixed support plates 202 can also be adjusted according to the length of the workpiece, and the operation can be completed by rotating the first hand wheel.

In conclusion, the feeding mechanism for the pin-shaped part fluorescent magnetic powder flaw detector disclosed by the invention runs fully automatically in the feeding process, finishes multi-station feeding work by one-time running, has high working efficiency, can be used for fixing the width of the supporting plate and the width of the movable supporting plate according to the specification of a workpiece, has strong adaptability, and can run safely and stably.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.