1. The utility model provides a detect utensil of examining in auto steering machine input shaft and pinion shaft clearance, includes workstation frame (1), its characterized in that: a workpiece lifting table (2), a clamp mounting table (3), a workpiece loading load simulation device (5) and a detection device (6) are fixedly mounted on the table top of the working table frame (1) respectively;

the workpiece lifting table (2) is positioned at one end of the table top of the workbench frame (1), the clamp mounting table (3) is positioned at the side position of the workpiece lifting table (2), and the top end of the clamp mounting table (3) is provided with a vertical clamp (4);

the workpiece loading load simulation device (5) is positioned at the other end of the table top of the working table frame (1);

the detection device (6) is arranged on the table surface of the working table frame (1) and is far away from the bottom position of one end of the workpiece lifting table (2);

two weights (7) for simulating applied load are also arranged on the workpiece loading load simulation device (5).

2. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 1, wherein: the top end of the workpiece lifting table (2) is provided with a workpiece lifting groove, a workpiece (8) to be detected is fixed in the workpiece lifting groove through a vertical clamp (4), the workpiece (8) to be detected is formed by assembling a pinion, a needle bearing and an input shaft, and the input shaft in the workpiece (8) to be detected is fixed by matching the vertical clamp (4) with the workpiece lifting table (2).

3. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 1, wherein: the workpiece loading load simulation device (5) comprises a vertical frame (501);

an opening is integrally formed at the top end of the stand (501), and an upper support arm (502) and a lower support arm (503) are respectively arranged inside the opening;

the tail end of the upper support arm (502) is rotatably connected with the vertical frame (501) through a pin shaft, and the top of the front end of the upper support arm (502) is provided with a tray (506) for placing a weight (7);

the middle part of the lower support arm (503) is rotatably connected with the vertical frame (501) through a pin shaft, and a hook (507) for hanging a weight (7) is fixed at the bottom of the tail end of the lower support arm (503).

4. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 3, wherein: a separator (504) is fixedly arranged on one side of the stand (501) between the upper support arm (502) and the lower support arm (503), and a turning lifting structure (505) is fixedly arranged on the other side of the stand (501) and positioned at the tail end of the upper support arm (502).

5. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 3, wherein: the front ends of the upper support arm (502) and the lower support arm (503) are on the same vertical line.

6. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 1, wherein: the detection device (6) comprises an adapter (601) fixedly connected with the bottom of the table board of the working table frame (1);

one end of the adaptor (601) is transversely and integrally formed with an extension part (602), an instrument lifting unit (603) is sleeved on the extension part (602), and the end part of the extension part (602) extends to the inner side of the instrument lifting unit (603);

a slot (609) is formed in the middle of the adapter (601), and a deflection conversion head (610) is rotatably connected to the inner side of the slot (609) through a rotating shaft;

a through hole is formed in the middle of the extending part (602), one end of the through hole is communicated with the slot (609), and a probe fixing part (604) is fixed on the inner side of the other end of the through hole; a detection instrument (605) is arranged on the inner side of the instrument lifting unit (603), and a probe at the front end of the detection instrument (605) penetrates through the through hole and then is in contact connection with the surface of one end of a deflection conversion head (610) in the slot (609);

the top of the other end of the adapter (601) is provided with a through hole (606) communicated with the slot (609), a vertical protective sleeve rod (607) is fixedly inserted into the through hole (606), and the inner side of the protective sleeve rod (607) is slidably penetrated with a detection shaft lever (608); the bottom end of the detection shaft lever (608) is in contact connection with the other end surface of the displacement conversion head (610).

7. The inspection device for detecting the clearance between the input shaft and the pinion shaft of the automobile steering gear according to claim 6, wherein: the protective sleeve rod (607) penetrates through the table surface of the working table frame (1), and the top end of the detection shaft rod (608) is vertically in contact connection with the bottom of one end, away from the input shaft, of the small gear in the workpiece (8) to be detected.

Background

The car steering wheel is as the master control device of car advancing direction, the security of its steering wheel is especially important, the assembly of steering wheel, the input shaft of its steering gear is through festival fork lug connection to steering wheel, the steering gear is in the assembling process, adopt bearing to reduce the clearance between its input shaft and the pinion usually, and the input shaft, bearing and pinion three assemble back each other, if the clearance is out of tolerance, can appear the steering gear during operation noise production, feel too tight when beating the steering gear, thereby influence the driving experience, also can cause certain driving safety hidden danger simultaneously, if the clearance is too little in the production steering gear process simultaneously, can put down the defective products during the production line function test of back end, lead to the product to scrap, cause the waste.

The method is used for detecting the assembly clearance among an input shaft, a pinion and a needle bearing of a steering gear at present, most of the assembly clearance is judged by a manual hand feeling matched deflection angle measuring tool, the accuracy is low, the experience requirement on a detector is extremely high, and common staff cannot perform the detection.

Therefore, the checking fixture for detecting the gap between the input shaft and the pinion shaft of the automobile steering gear is high in accuracy and convenient and simple to operate.

Disclosure of Invention

Aiming at the problems mentioned in the background technology, the invention provides the checking fixture for detecting the gap between the input shaft and the pinion shaft of the automobile steering gear, which has high accuracy and is convenient and simple to operate.

The invention discloses a detection tool for detecting a gap between an input shaft and a pinion shaft of an automobile steering gear, which comprises a working table frame, wherein a workpiece lifting table, a clamp mounting table, a workpiece loading load simulation device and a detection device are fixedly mounted on the table surface of the working table frame respectively; the workpiece lifting table is positioned at one end of the table top of the working table frame, the clamp mounting table is positioned at the side position of the workpiece lifting table, and the top end of the clamp mounting table is provided with a vertical clamp; the workpiece loading load simulation device is positioned at the other end of the table top of the working table frame; the detection device is arranged on the table top of the working table frame and at the bottom position of one end far away from the workpiece lifting table; two weights for simulating applied load are also placed on the workpiece loading load simulation device.

Through the design of the technical scheme, through combining the work piece lift platform of installing respectively on it with the work bench, the rectilinear clamp, work piece loading load analogue means, and the weight that the cooperation was used, make the device can wait to detect the work piece with the load form after the simulation loading and exert pressure to it, can replace traditional artifical judgement of feeling and deflection angle measuring tool, furthest's reduction external force factor is to the influence of detected data, the detection device who deuterogamies the setting can detect out the most accurate data with the error of minimum, thereby guarantee product production quality, reach and save manufacturing cost.

As a further improvement of the invention, the top end of the workpiece lifting table is provided with a workpiece lifting groove, a workpiece to be detected is fixed in the workpiece lifting groove through a vertical clamp, the workpiece to be detected is assembled by a pinion, a needle bearing and an input shaft, and the input shaft in the workpiece to be detected is fixed by matching the vertical clamp with the workpiece lifting table.

As a further improvement of the invention, the workpiece loading load simulation device comprises a vertical frame; an opening is integrally formed at the top end of the vertical frame, and an upper support arm and a lower support arm are respectively arranged on the inner side of the opening; the tail end of the upper support arm is rotatably connected with the vertical frame through a pin shaft, and the top of the front end of the upper support arm is provided with a tray for placing weights; the middle part of the lower support arm is rotatably connected with the vertical frame through a pin shaft, and a hook for hanging weights is fixed at the bottom of the tail end of the lower support arm.

A partition is fixedly mounted on one side of the vertical frame between the upper support arm and the lower support arm, and a turnover lifting structure is fixedly mounted on the other side of the vertical frame and located at the tail end of the upper support arm.

Through the design of the technical scheme, the workpiece loading load simulation device can be used for effectively simulating the load of the workpiece to be detected after loading by matching with the weight, so that the accuracy of the detection result is improved.

As a further improvement of the invention, the front ends of the upper support arm and the lower support arm are on the same vertical line.

Through the design of the technical scheme, the directions of the opposite forces generated by the two weights after the two weights are respectively acted on the upper support arm and the lower support arm can be effectively superposed, so that the forces exerted on the workpiece to be detected by the front ends of the upper support arm and the lower support arm are balanced.

As a further improvement of the invention, the detection device comprises an adapter fixedly connected with the bottom of the table board of the working table frame; one end of the adapter piece is transversely and integrally formed with an extension part, an instrument lifting unit is sleeved on the extension part, and the end part of the extension part extends to the inner side of the instrument lifting unit; the middle part of the adapter is provided with a slot, and the inner side of the slot is rotatably connected with a deflection conversion head through a rotating shaft; a through hole is formed in the middle of the extending part, one end of the through hole is communicated with the open groove, and a probe fixing piece is fixed on the inner side of the other end of the through hole; a detection instrument is arranged on the inner side of the instrument lifting unit, and a probe at the front end of the detection instrument penetrates through the through hole and then is in contact connection with the surface of one end of the deflection conversion head in the groove; the top of the other end of the adapter is provided with a through hole communicated with the open slot, a vertical protective sleeve rod is fixedly inserted in the through hole, and the inner side of the protective sleeve rod is slidably penetrated with a detection shaft lever; the bottom end of the detection shaft lever is in contact connection with the other end surface of the deflection conversion head.

The protection sleeve rod penetrates through the table top of the working table frame, and the top end of the detection shaft rod is vertically in contact connection with the bottom of one end, far away from the input shaft, of the pinion in the workpiece to be detected.

Compared with the prior art, the invention has the following beneficial effects:

1. the workpiece lifting table, the vertical clamp, the workpiece loading load simulation device and the matched weights are respectively arranged on the workbench frame, so that the device can apply pressure to the workpiece to be detected in a load simulation mode after loading, the traditional manual hand feeling judgment and deflection angle measurement tool can be completely replaced, the influence of external force factors on detection data is reduced to the maximum extent, the most accurate data can be detected by the detection device matched with the device, the production quality of products is guaranteed, and the production cost is saved.

2. The invention has simple integral structure, convenient operation and low experience requirement on operators, and common staff can be qualified to the post through simple training, thereby providing convenience for personnel management of enterprises.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic structural view of the detecting device of the present invention after being disassembled;

FIG. 4 is a schematic structural diagram of a detecting device according to the present invention;

FIG. 5 is a schematic structural diagram of the workpiece loading load simulator according to the present invention.

In the figure: 1. a working bench; 2. a workpiece lifting table; 3. a clamp mounting table; 4. a vertical clamp; 5. a workpiece loading load simulation device; 501. erecting a frame; 502. an upper support arm; 503. a lower support arm; 504. a separator; 505. turning over the lifting structure; 506. a tray; 507. hooking; 6. a detection device; 601. an adapter; 602. an extension portion; 603. an instrument lift unit; 604. a probe stabilizing member; 605. detecting an instrument; 606. a through hole; 607. a protective sheath rod; 608. detecting the shaft lever; 609. grooving; 610. a deflection conversion head; 7. a weight; 8. and (5) detecting the workpiece.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, a checking fixture for detecting a gap between an input shaft and a pinion shaft of an automobile steering gear comprises a working table frame 1, wherein a workpiece lifting table 2, a clamp mounting table 3, a workpiece loading load simulation device 5 and a detection device 6 are fixedly mounted on the table surface of the working table frame 1 respectively; the workpiece lifting table 2 is positioned at one end of the table top of the working table frame 1, the clamp mounting table 3 is positioned at the side position of the workpiece lifting table 2, and the top end of the clamp mounting table 3 is provided with a vertical clamp 4; the workpiece loading load simulation device 5 is positioned at the other end of the table top of the working table frame 1; the detection device 6 is arranged on the table surface of the working table frame 1 and at the bottom position of one end far away from the workpiece lifting table 2; two weights 7 for simulating applied load are also placed on the workpiece loading load simulation device 5.

The detection device 6 adopts any one of an electronic dial indicator and an electronic ten-thousandth indicator.

Through combining work piece lifting table 2 of installing respectively on it with work bench 1, vertical clamp 4, work piece loading load analogue means 5, and the weight 7 that the cooperation was used, make the device can wait to detect work piece 8 to exert pressure to it with the load form after the simulation loading, can replace traditional artifical judgement of feeling and deflection angle measuring tool, furthest's reduction external force factor is to the influence of detected data, the detection device 6 of deuterogamying setting can detect out the most accurate data with the error of minimum, thereby guarantee product production quality, reach and save manufacturing cost.

Referring to fig. 1 and 2, a workpiece lifting groove is formed at the top end of the workpiece lifting table 2, a workpiece 8 to be detected is fixed in the workpiece lifting groove through a vertical clamp 4, the workpiece 8 to be detected is assembled by a pinion, a needle bearing and an input shaft, and the input shaft in the workpiece 8 to be detected is fixed by the vertical clamp 4 in cooperation with the workpiece lifting table 2.

Referring to fig. 5, the workpiece-loading load simulation apparatus 5 includes a stand 501; an opening is integrally formed at the top end of the stand 501, and an upper support arm 502 and a lower support arm 503 are respectively arranged inside the opening; the tail end of the upper support arm 502 is rotatably connected with the stand 501 through a pin shaft, and the top of the front end of the upper support arm 502 is provided with a tray 506 for placing the weight 7; the middle part of the lower support arm 503 is rotatably connected with the vertical frame 501 through a pin shaft, and the bottom of the tail end of the lower support arm 503 is fixed with a hook 507 for hanging the weight 7. A separator 504 is fixedly arranged on one side of the stand 501 between the upper support arm 502 and the lower support arm 503, and a turning and lifting structure 505 is fixedly arranged on the other side of the stand 501 and positioned at the tail end of the upper support arm 502.

Through the design, the workpiece loading load simulation device 5 can be used for effectively simulating the load of the workpiece 8 to be detected after loading by matching weights, so that the accuracy of the detection result is improved.

The front ends of the upper arm 502 and the lower arm 503 are on the same vertical line.

Through the design, the directions of the opposite forces generated by the two weights 7 after acting on the upper support arm 502 and the lower support arm 503 can be effectively superposed, so that the forces exerted on the workpiece 8 to be detected by the front ends of the upper support arm 502 and the lower support arm 503 can reach a balance.

Referring to fig. 3 and 4, the detecting device 6 includes an adaptor 601 fixedly connected to the bottom of the table top of the working table frame 1; an extension part 602 is transversely and integrally formed at one end of the adapter 601, an instrument lifting unit 603 is sleeved on the extension part 602, and the end part of the extension part 602 extends to the inner side of the instrument lifting unit 603; a slot 609 is arranged in the middle of the adapter 601, and the inner side of the slot 609 is rotatably connected with a deflection conversion head 610 through a rotating shaft; a through hole is formed in the middle of the extending portion 602, one end of the through hole is communicated with the slot 609, and a probe fixing member 604 is fixed on the inner side of the other end of the through hole; a detection instrument 605 is arranged on the inner side of the instrument lifting unit 603, and a probe at the front end of the detection instrument 605 passes through the through hole and then is in contact connection with the surface of one end of the deflection conversion head 610 in the slot 609; the top of the other end of the adapter 601 is provided with a through hole 606 communicated with the slot 609, a vertical protective sleeve 607 is fixedly inserted in the through hole 606, and the inner side of the protective sleeve 607 is slidably connected with a detection shaft lever 608 in a penetrating manner; the bottom end of the detecting shaft lever 608 is in contact connection with the other end surface of the displacement conversion head 610; the protective sleeve rod 607 penetrates through the table surface of the workbench stand 1, and the top end of the detection shaft rod 608 is vertically contacted and connected with the bottom of one end, away from the input shaft, of the pinion in the workpiece 8 to be detected.

In the use of the invention: the worker selects the smallest needle bearing for assembling with the input shaft and the pinion to the workpiece 8 to be detected, fixes the workpiece 8 to be detected on the workpiece lifting table 2 of the device, then puts down the upper arm 502 of the workpiece loading load simulator 5 to be lapped above the pinion of the workpiece 8 to be detected, then puts one of the weights 7 on the tray 506 and hangs the other weight on the hook 507, so that the front end of the lower arm 503 moves upwards and acts below the pinion in the workpiece 8 to be detected, at this time, the reading of the detecting instrument 605 is cleared, finally takes down the weight 7 in the tray 506 and turns the upper arm 502 to the outside, so that the forces acting on the two sides of the workpiece 8 to be detected are out of balance, and because of the gap between the pinion, the needle bearing and the input shaft for assembling the workpiece 8 to be detected, the force acting on the workpiece 8 to be detected by the lower arm 503 at this time, the pinion is caused to generate angular deviation, the detection shaft lever 608 generates displacement along with the angular deviation of the pinion, at this time, the detection instrument 605 detects the displacement parameter of the detection shaft lever 608 through the displacement conversion head 610, the displacement parameter is displayed on the detection instrument 605, when the detection is unqualified, the needle roller bearings with different sizes are replaced, and the detection operation is repeated.

It needs to be further explained that: when assembling the needle bearings, the order in which they select the dimensions of the needle bearings should be sequentially increasing or sequentially decreasing.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.