Shaft fork opening symmetry degree detection tool

Abstract

The utility model relates to a shaft fork entry symmetry degree detection tool, which belongs to the technical field of symmetry degree detection tools and comprises a base, the upper portion of the base is fixedly connected with a rotating support, the inside of the rotating support is rotatably connected with a rotating seat, and the inside of the rotating seat is fixedly connected with a motor. The side end of the rotating seat is fixedly connected with a sliding support, the interior of the sliding support is rotationally connected with a bidirectional moving rod, and the output end of the motor is fixedly connected with the bidirectional moving rod. The detection mechanisms are driven by the motor to move towards the outer side through the two-way moving rod so as to detect the symmetry degree in the fork entry, and after the rotating base is rotated, the motor is started to enable the two detection mechanisms to move to the outer side of the fork lug, and the rotating base is rotated to return to the original angle. The motor is restarted to enable the detection mechanism to move inwards from the two sides so as to detect the symmetry degree of the outer side of the fork entry, and finally the detection operation of the fork entry symmetry degree is accurately and rapidly achieved.

Description

Technical Field

[0001] This utility model relates to the field of symmetry detection tooling technology, and specifically to a tooling for detecting the symmetry of a shaft fork opening. Background Technology

[0002] Symmetry testing fixtures are specialized tools or devices used to measure the symmetry deviation of workpieces. They are widely used in machining, quality inspection and other fields, and are especially important in high-precision manufacturing, including the automotive machinery manufacturing field.

[0003] According to the public announcement (CN210128685U), a tool for detecting the symmetry of the two ear surfaces of a splined shaft fork is disclosed. This technology discloses "a base, a fixed block on the base, pins and positioning components on the outer sides of both ends of the fixed block, the positioning components including a fixed ring, a rotating disk, and ear shafts, a connecting hole on the fixed ring, a fixed rod in the connecting hole, the rotating disk in the fixed ring, two symmetrical slots on the outer circumference of the rotating disk, the end of the fixed rod extending into one of the slots, a groove on the end face of the rotating disk, a lead screw rotating in the groove, two opposite threads on the lead screw, two ear shafts, a connecting rod connected to the ear shaft, the connecting rod slidingly connected to the lead screw, and a dial indicator on one side of the fixed block, etc. This technical solution has the advantages of simple structure, convenient workpiece loading and unloading, saving time and effort, reducing the labor intensity and technical level requirements of operators, high detection efficiency, small error, and applicability to splined shaft forks of different specifications and sizes."

[0004] However, the symmetry of the fork opening may be affected by the manufacturing process, resulting in different thicknesses inside and outside. In this case, only measuring the symmetry of the outer side cannot obtain accurate data.

[0005] To address the aforementioned issues, this application proposes a tooling for detecting the symmetry of the shaft fork opening. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a tooling for detecting the symmetry of the shaft fork opening.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A tooling for detecting the symmetry of a shaft fork opening includes a base, a rotating bracket fixedly connected to the upper part of the base, a rotating seat rotatably connected inside the rotating bracket, a motor fixedly connected inside the rotating seat, a sliding bracket fixedly connected to the side end of the rotating seat, a bidirectional moving rod rotatably connected inside the sliding bracket, the output end of the motor being fixedly connected to the bidirectional moving rod, a detection mechanism being threadedly connected to the surface of the bidirectional moving rod, a placement platform fixedly connected to the upper part of the base, and a fixing mechanism fixedly connected to the upper part of the placement platform.

[0008] The rotating seat has a slidably connected positioning rod on its surface, and the rotating bracket has a positioning groove on its surface. This design allows the rotating seat to fix its angle by inserting the positioning rod into the positioning groove after rotation.

[0009] The detection mechanism includes a slide block slidably connected inside a sliding bracket. An outer detection platform is fixedly connected to the side end of the slide block, and an inner detection platform is fixedly connected to the side end of the slide block. Detection rods are slidably connected inside the outer and inner detection platforms, respectively. A contact plate is fixedly connected to the side end of the detection rod, and a first spring is fixedly connected to the surface of the detection rod. The fixed end of the first spring is fixedly connected to the inner detection platform. The upper surface of the inner detection platform is provided with a scale. By setting the scale, when the slide block moves outward, the scale on the surface of the detection rod detects the symmetry and offset within the fork opening of the shaft, and when it moves inward, it detects the symmetry and offset outside the fork opening of the shaft.

[0010] The fixing mechanism includes a fixing platform fixedly connected to the placement platform. A fixing rod is slidably connected inside the fixing platform. A second spring is fixedly connected to the surface of the fixing rod. The fixed end of the second spring is fixedly connected to the fixing platform. A clamping block is fixedly connected to the side end of the fixing rod. A guide plate is fixedly connected to the upper surface of the clamping block. By setting the mechanism so that when the shaft fork is pressed into the guide plate from top to bottom, it will eventually be fixed by the clamping blocks on both sides, thereby avoiding shaking during symmetry detection and causing excessive deviation in the detection data.

[0011] The beneficial effects of this utility model are as follows: by using a motor to drive the detection mechanism to move outward with a bidirectional moving rod, the symmetry inside the fork is detected. After rotating the rotating seat, the motor is started so that the two detection mechanisms move to the outside of the fork lug. Then, the rotating seat is rotated back to the original angle, and the motor is restarted so that the detection mechanisms move inward from both sides to detect the symmetry outside the fork. Finally, the symmetry detection operation of the fork is realized accurately and quickly.

[0012] When the shaft fork is pressed down and inserted into the guide plate, it will eventually be fixed by the clamps on both sides, thus avoiding excessive deviation in the test data due to shaking during symmetry testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the motor and related components of this utility model;

[0015] Figure 3 This is a schematic diagram of the first spring and its related three-dimensional structure according to the present invention;

[0016] Figure 4This is a schematic diagram of the fixing rod and related three-dimensional structures of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Base; 2. Rotating bracket; 3. Rotating seat; 4. Motor; 5. Sliding bracket; 6. Bidirectional moving rod;

[0019] 7. Testing mechanism; 701. Slide; 702. Outer testing table; 703. Inner testing table; 704. Testing rod; 705. Contact plate; 706. First spring; 707. Scale; 8. Placement platform;

[0020] 9. Fixing mechanism; 901. Fixing platform; 902. Fixing rod; 903. Second spring; 904. Clamping block; 905. Guide plate; 11. Positioning rod; 12. Positioning groove. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0024] Reference Figure 1 - Figure 2A fork symmetry detection fixture includes a base 1, a rotating bracket 2 fixedly connected to the upper part of the base 1, a rotating seat 3 rotatably connected inside the rotating bracket 2, the inner circumference of the rotating bracket 2 being equal to the outer circumference of the rotating seat 3, a motor 4 fixedly connected inside the rotating seat 3, a sliding bracket 5 fixedly connected to the side end of the rotating seat 3, a bidirectional moving rod 6 rotatably connected inside the sliding bracket 5, the inner circumference of the sliding bracket 5 at this point being equal to the outer circumference of the bidirectional moving rod 6 at this point, the output end of the motor 4 fixedly connected to the bidirectional moving rod 6, and a detection mechanism 7 threadedly connected to the surface of the bidirectional moving rod 6. The outer wall of the bidirectional moving rod 6 is connected to... The inner wall of the detection mechanism 7 is adapted to the base 1. The upper part of the base 1 is fixedly connected to the placement platform 8, and the upper part of the placement platform 8 is fixedly connected to the fixing mechanism 9. After the fork of the shaft is placed on the placement platform 8 with the fork opening facing the sliding bracket 5, the motor 4 drives the detection mechanism 7 to move outward through the bidirectional moving rod 6 to detect the symmetry inside the fork opening. Then, after rotating the rotating seat 3, the motor 4 is started so that the two detection mechanisms 7 move to the outside of the fork ear. Then, the rotating seat 3 is rotated back to the original angle, and the motor 4 is restarted so that the detection mechanism 7 moves inward from both sides to detect the symmetry outside the fork opening. Finally, the operation of detecting the symmetry of the fork opening is realized accurately and quickly.

[0025] Reference Figure 1 The rotating seat 3 is slidably connected to a positioning rod 11, and the rotating bracket 2 is provided with a positioning groove 12. After the rotating seat 3 rotates, it can fix its angle by inserting the positioning rod 11 into the positioning groove 12, so as to avoid the rotating seat 3 from shaking during the test and thus affecting the accuracy of the test data.

[0026] Reference Figure 1 - Figure 3 The testing mechanism 7 includes a slide block 701 slidably connected inside the sliding bracket 5. An outer testing platform 702 is fixedly connected to the side end of the slide block 701, and an inner testing platform 703 is fixedly connected to the side end of the slide block 701. Testing rods 704 are slidably connected inside the outer testing platform 702 and the inner testing platform 703, respectively. The inner circumference of the outer testing platform 702 and the inner testing platform 703 is equal to the outer circumference of the testing rod 704. A contact plate 705 is fixedly connected to the side end of the testing rod 704. A first spring 706 is fixedly connected to the surface. The fixed end of the first spring 706 is fixedly connected to the inner detection table 703. The upper surface of the inner detection table 703 is provided with a scale 707. The slide 701 moves outward until the contact plates 705 corresponding to the detection rods 704 on both sides contact the shaft fork. If it is not completely symmetrical at this time, the phenomenon of one end of the detection rod 704 moving inward will occur. The degree of symmetry can be judged by the exposed numbers on the scale 707. The same principle can be used to obtain the degree of symmetry outside the shaft fork when it moves inward.

[0027] Reference Figure 1 - Figure 4The fixing mechanism 9 includes a fixing platform 901 fixedly connected to the placement platform 8. A fixing rod 902 is slidably connected inside the fixing platform 901. The inner circumference of the fixing platform 901 is equal to the outer circumference of the fixing rod 902. A second spring 903 is fixedly connected to the surface of the fixing rod 902. The fixed end of the second spring 903 is fixedly connected to the fixing platform 901. A clamping block 904 is fixedly connected to the side end of the fixing rod 902. A guide plate 905 is fixedly connected to the upper surface of the clamping block 904. When the shaft fork is pressed down and inserted into the guide plate 905, the guide plate 905 is compressed and drives the clamping block 904 to move to both sides. After the shaft fork slides into the guide plate 905, the second springs 903 on both sides drive the fixing rod 902 to move inward, and finally fix the shaft fork to avoid shaking during symmetry detection, which would cause excessive deviation in the detection data.

[0028] Working principle:

[0029] This fork symmetry detection fixture places the fork with its fork opening facing the sliding bracket 5 on the placement table 8. The motor 4 drives the detection mechanism 7 to move outward via the bidirectional moving rod 6. The slide 701 moves outward until the contact plates 705 corresponding to the detection rods 704 on both sides are in contact with the fork. If the symmetry is not perfect at this point, one detection rod 704 will move inward. The symmetry can be judged by the exposed numbers on the scale 707. After rotating the rotating seat 3 and starting the motor 4, the two detection mechanisms 7 move to the outside of the fork lug. Rotating the rotating seat 3 back to the original angle and restarting the motor 4 will move the detection mechanism 7 inward. Similarly, the symmetry outside the fork opening can be obtained. Finally, the symmetry of the fork opening can be accurately and quickly detected.

[0030] When the symmetry detection fixture for the shaft fork is pressed into the guide plate 905 from top to bottom, the guide plate 905 is compressed, causing the clamping block 904 to move to both sides. After the shaft fork slides into the guide plate 905, the second springs 903 on both sides drive the fixing rod 902 to move inward, and finally fix the shaft fork, thereby avoiding excessive deviation in the detection data due to shaking during symmetry detection.

[0031] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A kind of axle fork fork mouth symmetry detection frock, including base (1), it is characterized in that, The upper part of the base (1) is fixedly connected with a rotating support (2), the inner rotating connection of the rotating support (2) is provided with a rotating seat (3), the inner fixed connection of the rotating seat (3) is provided with a motor (4), the side end of the rotating seat (3) is fixedly connected with a sliding support (5), the inner rotating connection of the sliding support (5) is provided with a bidirectional moving rod (6), the output end of the motor (4) is fixedly connected with the bidirectional moving rod (6), the surface of the bidirectional moving rod (6) is threadedly connected with a detection mechanism (7), the upper part of the base (1) is fixedly connected with a placing table (8), and the upper part of the placing table (8) is fixedly connected with a fixing mechanism (9).

2. The yoke fork mouth symmetry detection tool of claim 1, wherein, The surface of the rotating seat (3) is slidably connected with a positioning rod (11), and the surface of the rotating support (2) is provided with a positioning groove (12).

3. The yoke fork mouth symmetry detection tool of claim 1, wherein, The detection mechanism (7) comprises a sliding seat (701) slidably connected in the sliding support (5), the side end of the sliding seat (701) is fixedly connected with an outer detection table (702), and the side end of the sliding seat (701) is fixedly connected with an inner detection table (703).

4. The yoke fork mouth symmetry detection tool of claim 3, wherein, The inner part of the outer detection table (702) and the inner detection table (703) is slidably connected with a detection rod (704), and the side end of the detection rod (704) is fixedly connected with a contact plate (705).

5. The yoke fork mouth symmetry detection tool of claim 4, wherein, The surface of the detection rod (704) is fixedly connected with a first spring (706), the fixed end of the first spring (706) is fixedly connected with the inner detection table (703), and the upper surface of the inner detection table (703) is provided with a scale (707).

6. The yoke fork mouth symmetry detection tool of claim 1, wherein, The fixing mechanism (9) comprises a fixed table (901) fixedly connected on the placing table (8), the inner sliding connection of the fixed table (901) is provided with a fixed rod (902), the surface of the fixed rod (902) is fixedly connected with a second spring (903), and the fixed end of the second spring (903) is fixedly connected with the fixed table (901).

7. The yoke fork mouth symmetry detection tool of claim 6, wherein, The side end of the fixed rod (902) is fixedly connected with a clamping block (904), and the upper surface of the clamping block (904) is fixedly connected with a guide plate (905).

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