1. The utility model provides a special fluorescent magnetic particle flaw detector of multistation cottonlike part which characterized in that: the device comprises a rack (1), an electrode sliding table (2), a transmission mechanism (3), a feeding mechanism (4), a blanking demagnetizing mechanism (5), a magnetic suspension spraying system and a violet lamp;

the electrode slide table (2) comprises a mounting frame (201), a first shaft (202), a second shaft (203), a first chuck (204), a second chuck (205), a first cylinder (206), a second cylinder (207), an electrode (208) and a magnet yoke coil (209); the mounting frame (201) is arranged on a rack (1) through a sliding rail, a first shaft (202) and a second shaft (203) are connected to the mounting frame (201) in a rotating mode, the first shaft (202) and the second shaft (203) are equal in height, the first shaft (202) and the second shaft (203) are connected through a chain (304) of a chain wheel (303), the first shaft (202) and the second shaft (203) are connected with a first chuck (204) and a second chuck (205) in a sliding mode, the first chuck (204) and the second chuck (205) are driven to eject or retract by a first air cylinder (206) and a second air cylinder (207) respectively, the first chuck (204) is connected with electrodes (208) generating magnetic fields in the same circumferential direction, and a magnetic yoke coil (209) generating a longitudinal magnetic field is sleeved outside the first shaft (202);

the transmission mechanism (3) drives the first chuck (204) and the second chuck (205) to synchronously rotate;

the feeding mechanism (4) and the electrode sliding table (2) are vertically arranged, the feeding mechanism (4) comprises a fixed bracket (401) and a movable bracket (402), the fixed bracket (401) and the movable bracket (402) are respectively provided with a placing groove for placing a workpiece, and the distance between the adjacent placing grooves is the same as the center distance between the first chuck (204) and the second chuck (205); the movable bracket (402) can move up and down and horizontally, conveys the workpiece to the relative position of the first chuck (204) and the second chuck (205), lifts the workpiece to move in a stepping mode, and conveys the workpiece to the previous placing groove from the rear placing groove of the fixed bracket (401).

2. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: drive mechanism (3) include motor (301), hexagonal stick (302), sprocket (303), chain (304), motor (301) drive hexagonal stick (302) transmission rotary motion, hexagonal stick (302) drive second axle (203) rotation through sprocket (303) and chain (304), wherein hexagonal stick (302) are gone up sprocket (303) and can be followed hexagonal stick (302) axial slip.

3. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: the blanking demagnetizing mechanism (5) comprises a box body (501), an inclined plate (502), a bottom plate (503), a slide way (504), a demagnetizing coil (505) and a third air cylinder (506); the utility model discloses a portable material conveying device, including swash plate (502), movable bracket (402), bottom plate (503), slide (504), sloping plate (502) are located the one end of feeding mechanism (4), be equipped with the opening that can supply movable bracket (402) to pass on swash plate (502), bottom plate (503) are located box (501) bottom, go up and down or overturn by third cylinder (506) drive, slide (504) are located the side of box (501) bottom, descend or overturn back slide (504) and box (501) intercommunication at bottom plate (503), slide (504) overcoat is equipped with demagnetization coil (505).

4. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: the lead screw is installed to electrode slip table (2) bottom, can be on a large scale the distance between two electrode slip tables (2).

5. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: and a spray rod in the magnetic suspension spray system is arranged above the workpiece clamped by the two first chucks.

6. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: the purple light lamp is arranged above the workpiece clamped by the two second lug chucks.

7. The special fluorescent magnetic powder flaw detector for the multi-station pin-shaped parts according to claim 1, characterized in that: the fluorescent magnetic powder flaw detector also comprises a PLC programmable controller which has two operation modes of manual operation and automatic operation.

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, demagnetizes finally, takes away the workpiece and completes flaw detection.

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 the special fluorescent magnetic particle flaw detector for the pin-shaped part, which has double stations and can simultaneously carry out magnetization and observation.

The invention is realized by the following technical scheme that the fluorescent magnetic powder flaw detector special for the multi-station pin-shaped part comprises a rack, an electrode sliding table, a transmission mechanism, a feeding mechanism, a blanking demagnetizing mechanism, a magnetic suspension spraying system and a violet lamp;

the electrode sliding tables are arranged at two ends of the T shape of the frame and comprise mounting frames, a first shaft, a second shaft, a first chuck, a second chuck, a first cylinder, a second cylinder, an electrode and a magnet yoke coil; the mounting frame is arranged on the rack through a sliding rail, a first shaft and a second shaft are connected to the mounting frame in a rotating mode, the first shaft and the second shaft are equal in height and are connected through a chain wheel and a chain, the first shaft and the second shaft are connected with a first chuck and a second chuck in a sliding mode, the first chuck and the second chuck are driven to eject or retract through a first air cylinder and a second air cylinder respectively, the first chuck is connected with electrodes generating magnetic fields in the same circumferential direction, and a magnetic yoke coil generating a longitudinal magnetic field is sleeved outside the first shaft;

the transmission mechanism drives the first chuck and the second chuck to synchronously rotate;

the feeding mechanism and the electrode sliding table are vertically arranged, the feeding mechanism comprises a fixed bracket and a movable bracket, the fixed bracket and the movable bracket are respectively provided with a placing groove for placing a workpiece, and the distance between the adjacent placing grooves is the same as the center distance between the first chuck and the second chuck; the movable bracket can move up and down and horizontally, conveys the workpiece to the relative position of the first chuck and the second chuck, lifts the workpiece to move in a stepping mode, and conveys the workpiece to the front placing groove from the rear placing groove of the fixed bracket.

Further, drive mechanism includes motor, hexagonal stick, sprocket, chain, the motor drives hexagonal stick transmission rotary motion, it is rotatory that the hexagonal stick passes through sprocket and chain drive secondary shaft, and wherein the hexagonal stick axial slip can be followed to the sprocket on the hexagonal stick.

Furthermore, the blanking demagnetization mechanism comprises a box body, an inclined plate, a bottom plate, a slide way, a demagnetization coil and a third air cylinder; the swash plate is located feeding mechanism's one end, be equipped with the opening that can supply movable bracket to pass on the swash plate, the bottom plate is located the bottom half, goes up and down or overturns by the drive of third cylinder, the slide is located the side of bottom half, descends or overturns back slide and box intercommunication at the bottom plate, the slide overcoat is equipped with the demagnetization coil.

Further, the lead screw is installed to electrode slip table bottom, can be on a large scale the distance between two electrode slip tables.

Further, a spray rod in the magnetic suspension spray system is arranged above the workpiece clamped by the two first clamping heads.

Further, the purple light lamp is arranged above the workpiece clamped by the two second clamping heads.

Furthermore, the fluorescent magnetic powder flaw detector also comprises a PLC programmable controller which has two operation modes of manual operation and automatic operation.

The invention has the beneficial effects that:

1. the invention is provided with three independent stations of magnetization, observation and demagnetization, and each station can be carried out simultaneously, thereby greatly improving the working efficiency and being suitable for the operation requirement of an on-site workpiece maintenance assembly line.

2. The feeding mechanism is provided with the placing groove for placing the workpieces, the feeding mechanism can be used for storing a plurality of workpieces at the same time, when the sizes of the workpieces to be detected are close, the workpieces can be automatically loaded and unloaded by the manipulator, the labor intensity of operators is reduced, the workpieces are sequentially conveyed to three stations of magnetization, observation and demagnetization by the feeding mechanism in the whole process of flaw detection, and the automation degree is high.

Drawings

FIG. 1 is a front view of a fluorescent magnetic powder inspection machine for multi-station pin-shaped parts according to the present invention;

FIG. 2 is a front view of a fluorescent magnetic powder inspection machine for multi-station pin-shaped parts according to the present invention;

FIG. 3 is a front view of a fluorescent magnetic powder inspection machine for multi-station pin-shaped parts according to the present invention;

fig. 4 is a schematic perspective view of a fluorescent magnetic powder inspection machine special for multi-station pin-shaped parts according to the invention.

In the figure: 1, a frame; 2, an electrode sliding table; 201, a mounting rack; 202 a first axis; 203 a second axis; 204 a first chuck; 205 a second collet; 206 a first cylinder; 207 a second cylinder; 208 electrodes; 209 yoke coils; 3, a transmission mechanism; 301 a motor; 302 hexagonal rod; 303 chain wheel; 304 a chain; 4, a feeding mechanism; 401 a fixed carriage; 402 a mobile carrier; 5 blanking demagnetizing mechanism; 501, a box body; 502 a swash plate; 503 a bottom plate; 504 a slide way; 505 demagnetizing coils; 506 third cylinder.

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. 1-4, a fluorescent magnetic powder inspection machine special for multi-station pin-shaped parts comprises a frame 1, an electrode sliding table 2, a transmission mechanism 3, a feeding mechanism 4, a blanking demagnetizing mechanism 5, a magnetic suspension spraying system and a violet lamp;

the electrode slide table 2 comprises a mounting rack 201, a first shaft 202, a second shaft 203, a first chuck 204, a second chuck 205, a first cylinder 206, a second cylinder 207, an electrode 208 and a yoke coil 209; the mounting frame 201 is arranged on the rack 1 through a sliding rail, a first shaft 202 and a second shaft 203 are connected to the mounting frame 201 in a rotating mode, the first shaft 202 and the second shaft 203 are equal in height, the first shaft 202 and the second shaft 203 are connected through a chain wheel 303 and a chain 304, a first chuck 204 and a second chuck 205 are connected to the first shaft 202 and the second shaft 203 in a sliding mode, the first chuck 204 and the second chuck 205 are driven to eject or retract by a first air cylinder 206 and a second air cylinder 207 respectively, the first chuck 204 is connected with an electrode 208 which generates a magnetic field in the same circumferential direction, and a yoke coil 209 which generates a longitudinal magnetic field is sleeved outside the first shaft 202;

the transmission mechanism 3 drives the first chuck 204 and the second chuck 205 to synchronously rotate;

the feeding mechanism 4 and the electrode sliding table 2 are vertically arranged, the feeding mechanism 4 comprises a fixed bracket 401 and a movable bracket 402, the fixed bracket 401 and the movable bracket 402 are both provided with placing grooves for placing workpieces, and the distance between the adjacent placing grooves is the same as the center distance between the first chuck 204 and the second chuck 205; the movable carrier 402 can move up and down and horizontally to transfer the workpiece to the relative position of the first chuck 204 and the second chuck 205, and lift the workpiece by a step movement to transfer the workpiece from the next slot to the previous slot of the fixed carrier 401.

In practical application, the transmission mechanism 3 includes a motor 301, a hexagonal rod 302, a sprocket 303, and a chain 304, the motor 301 drives the hexagonal rod 302 to transmit a rotational motion, the hexagonal rod 302 drives the second shaft 203 to rotate through the sprocket 303 and the chain 304, wherein the sprocket 303 on the hexagonal rod 302 can slide axially along the hexagonal rod 302.

In practical application, the blanking demagnetizing mechanism 5 comprises a box body 501, an inclined plate 502, a bottom plate 503, a slide way 504, a demagnetizing coil 505 and a third air cylinder 506; the swash plate 502 is located the one end of feeding mechanism 4, be equipped with the opening that can supply movable bracket 402 to pass on the swash plate 502, bottom plate 503 is located the box 501 bottom, is gone up and down or overturns by the drive of third cylinder 506, slide 504 is located the side of box 501 bottom, descends or overturns back slide 504 and box 501 intercommunication at bottom plate 503, the slide 504 overcoat is equipped with demagnetization coil 505.

In practical application, the lead screw is installed to motor slip table 2 bottom, can be on a large scale the distance between two electrode slip tables 2.

In practical application, a spray rod in the magnetic suspension spray system is arranged above the workpiece clamped by the two first clamping heads.

In practical application, the purple light lamp is arranged above the workpiece clamped by the two second clamping heads.

In practical application, the fluorescent magnetic powder flaw detector also comprises a PLC programmable controller which has two operation modes of manual operation and automatic operation.

The working principle of the invention is as follows:

the workpiece to be detected is close in size and automatically loaded and unloaded by a mechanical arm, the workpiece to be detected is transferred to a feeding mechanism 4, the feeding mechanism 4 can simultaneously store a plurality of workpieces, the feeding mechanism 4 can drive the workpieces to gradually move forwards through the up-down and horizontal movement of a movable bracket 402 and sequentially transfer the workpieces to a first chuck and a second chuck, the first chuck is a magnetizing station and is driven to rotate by a transmission mechanism after clamping the workpieces, a magnetic suspension spraying system is started, longitudinal magnetization, axial magnetization or composite magnetization are carried out through a magnetic yoke coil and an electrode, the workpieces are transferred to the second chuck by the feeding mechanism after the magnetization is finished, a purple light lamp is arranged above the second chuck, the second chuck drives the workpieces to rotate for visual inspection, the inspected workpieces are transferred to a blanking demagnetizing mechanism along with the movement of the feeding mechanism, and when the workpieces pass through a material channel, the invention has independent stations of magnetization, observation and demagnetization, and each station can be carried out simultaneously, thereby greatly improving the working efficiency and being suitable for the operation requirement of an on-site workpiece maintenance assembly line.

In conclusion, the fluorescent magnetic powder flaw detector special for the multi-station pin-shaped parts is provided with three independent stations of magnetization, observation and demagnetization, each station can be carried out simultaneously, the working efficiency is greatly improved, the fluorescent magnetic powder flaw detector is suitable for the operation requirement of an on-site workpiece overhauling assembly line, workpieces are sequentially conveyed to the three stations by the feeding mechanism in the whole flaw detection process, and the automation degree is high.

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.