Shifting fork testing fixture

By designing a shift fork inspection tool including spotlights, molds and observation chambers, the problem of difficulty in detecting arc surface wear of the automotive gearbox fork in the prior art is solved, and simple and accurate detection of arc surface wear is achieved, and the applicability of the device is improved.

CN222824953UActive Publication Date: 2025-05-02WUXI FULWO JINGGONG TECH CO LTD
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Patent Information

Application Number
CN202421869270.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-05
Publication Date
2025-05-02
Estimated Expiration
2034-08-05

AI Technical Summary

Technical Problem

The prior art is difficult to effectively detect the arc wear of the gearshift fork of the vehicle transmission, making it difficult to detect defects of the gearshift fork in time.

Method used

A shift fork inspection tool is designed, including a shell, spotlight, mold and observation chamber. The contact point between the fork and the mold is illuminated through the spotlight. When the arc surface of the fork is worn, light passes through the gap and falls into the observation chamber to detect the wear of the arc surface.

Benefits of technology

It realizes simple and accurate detection of the arc surface of the fork, is convenient to operate, is low in use, and improves the various applicability of the device by adjusting the components and installation structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear shifting fork testing fixture, comprising a housing, the interior of the housing is divided into a placing cavity and an observation cavity, the placing cavity and the observation cavity are communicated through a light passing hole, the top of the housing is provided with a spotlight, and the spotlight is installed on the inner wall of the top of the housing through an adjusting assembly. A placing cavity is formed in the base, a fixing rod is fixed to the inner wall of one side of the placing cavity through a bolt, a mold is arranged on one side of the fixing rod, the mold and the fixing rod are detachably connected through a mounting structure, and a shifting fork body is arranged on one side of the mold. At the moment, light can penetrate through the gap and fall into the observation cavity, so that the defect of the shifting fork body is known, detection of the cambered surface of the shifting fork body is completed, operation is easy, observation is easy, and the use cost is low.
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Description

Technical Field

[0001] The utility model relates to the technical field of shift fork detection, in particular to a shift fork detection tool. Background Art

[0002] The shift fork is a component on the car gearbox, connected to the shift handle, located at the lower end of the handle, and is used to shift the middle shift wheel to change the input or output speed ratio. It is mainly used for clutch shifting.

[0003] After searching, a kind of automobile transmission shift fork inspection tool disclosed in the announcement number CN217541733U, when inspecting the shift fork, only needs to insert the shift fork into the shift fork sleeve. When the shift fork is not deformed, it can be smoothly inserted into the shift fork sleeve; when the shift fork is deformed, the shift fork cannot be smoothly inserted into the shift fork sleeve, so it can be identified whether the shift fork is deformed. When the flatness of the arc surface of the shift fork is abnormal, it is difficult to check the arc surface wear of the shift fork. Therefore, a inspection tool that can detect the arc surface wear of the shift fork is needed to detect the shift fork. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a shift fork inspection tool.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shift fork inspection tool comprises a shell, the interior of the shell is divided into a placement cavity and an observation cavity, the placement cavity and the observation cavity are connected through a light hole, a spotlight is provided on the top of the shell, and the spotlight is installed on the top inner wall of the shell through an adjustment component, a fixing rod is fixed to the inner wall of one side of the placement cavity by bolts, a mold is provided on one side of the fixing rod, and the mold and the fixing rod are detachably connected through a mounting structure, and a shift fork body is provided on one side of the mold.

[0007] As a further solution of the utility model, the adjustment component includes a guide rail, which is fixed to the top of the placement cavity by bolts, and the multi-side outer walls of the guide rail are slidably connected to the linear motor, and the spotlight is fixed to the bottom of the linear motor.

[0008] As a further solution of the utility model, the mounting structure includes a card slot and a card frame, the card slot is opened at the top of the fixing rod, the card frame is fixed to one side of the fork body by bolts, and the card frame is inserted into the card slot.

[0009] As a further solution of the present invention, an observation platform is provided at the bottom of the observation chamber.

[0010] As a further solution of the utility model, a plurality of groups of scales are provided on the top of the observation platform, and the plurality of scales are evenly distributed.

[0011] As a further solution of the utility model, two door panels are rotatably connected between the top and the bottom of the placement cavity, and the two door panels are symmetrically distributed.

[0012] As a further solution of the utility model, one-way light-transmitting glass is bonded to the notch of the observation cavity.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a spotlight and a mold. When the arc surface of the fork body is worn and cannot be completely fitted with the mold, light will pass through the gap and fall into the observation cavity, so that it is known that there are defects in the fork body, and then the arc surface of the fork body is detected. The operation is simple, the observation is easy, and the use cost is low.

[0015] 2. The utility model is provided with an adjustment component to start the linear motor, which moves on the guide rail, thereby driving the spotlight to move, changing the position of the spotlight, and illuminating the fit between the fork body and the mold at multiple positions, thereby improving the accuracy of device detection.

[0016] 3. The utility model is provided with a mounting structure, and when different fork bodies need to be tested, the testing of different fork bodies can be completed by simply replacing the corresponding molds, thereby improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a shift fork inspection fixture proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a shift fork inspection fixture proposed by the utility model;

[0019] Figure 3 It is a partial enlarged structural schematic diagram of a shift fork inspection fixture proposed by the utility model;

[0020] Figure 4 The utility model is a partial exploded structural schematic diagram of a shift fork inspection fixture.

[0021] In the figure: 1. Shell; 2. Door panel; 3. One-way light-transmitting glass; 4. Placement cavity; 5. Observation cavity; 6. Fixing rod; 7. Mold; 8. Light hole; 9. Observation platform; 10. Spotlight; 11. Fork body; 12. Scale; 13. Guide rail; 14. Linear motor; 15. Card slot; 16. Card holder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 4 A shift fork inspection tool comprises a shell 1, the interior of the shell 1 is divided into a placement chamber 4 and an observation chamber 5, two door panels 2 are rotatably connected between the top and the bottom of the placement chamber 4, and the two door panels 2 are symmetrically distributed. The door panels 2 are closed to make the placement chamber 4 in a closed state, so that light cannot be irradiated into the placement chamber 4. A one-way light-transmitting glass 3 is bonded to the notch of the observation chamber 5, which can reduce the light intensity in the observation chamber 5 and also enable the internal situation to be observed. The placement chamber 4 and the observation chamber 5 are connected through a light hole 8. A spotlight 10 is provided on the top of the shell 1, and the spotlight 10 is installed on the shell 1 through an adjustment component. The top inner wall, the inner wall on one side of the cavity 4 is fixed with a fixing rod 6 by bolts, a mold 7 is provided on one side of the fixing rod 6, and the mold 7 and the fixing rod 6 are detachably connected through a mounting structure, and a fork body 11 is provided on one side of the mold 7. First, the arc surface of the fork body 11 is brought into contact with the mold 7, and then the spotlight 10 is started, and the position of the spotlight 10 is adjusted using the adjustment mechanism. When the arc surface of the fork body 11 is worn, it cannot be completely fitted with the mold 7. At this time, light will pass through the gap and fall into the observation cavity 5, so that it is known that there is a defect in the fork body 11, and then the detection of the arc surface of the fork body 11 is completed.

[0024] Among them, the adjustment component includes a guide rail 13, which is fixed to the top of the placement cavity 4 by bolts. The outer walls of multiple sides of the guide rail 13 are slidably connected with a linear motor 14, and the spotlight 10 is fixed to the bottom of the linear motor 14. The linear motor 14 is started, and the linear motor 14 moves on the guide rail 13, thereby driving the spotlight 10 to move, changing the position of the spotlight 10, and irradiating the fork body 11 at multiple positions to determine the fit between the mold 7, thereby improving the accuracy of the device detection.

[0025] Among them, the installation structure includes a slot 15 and a bracket 16. The slot 15 is opened at the top of the fixing rod 6. The bracket 16 is fixed to one side of the fork body 11 by bolts, and the bracket 16 is inserted into the slot 15. When it is necessary to detect different fork bodies 11, it is only necessary to replace the corresponding mold 7 to complete the detection of different fork bodies 11, thereby improving the versatility of the device.

[0026] Among them, an observation platform 9 is provided at the bottom of the observation cavity 5, and the light from the spotlight 10 passing through the gap will directly illuminate the observation platform 9, so that the landing point of the gap light can be accurately known, reducing the difficulty of finding. A plurality of sets of scales 12 are provided on the top of the observation platform 9, and the plurality of scales 12 are evenly distributed. The degree of wear of the arc surface of the fork body 11 is determined according to the width of the light passing through the gap, and it is determined whether the fork body 11 is scrapped.

[0027] Working principle: When it is necessary to detect the arc surface of the fork, first install the mold 7 corresponding to the fork body 11, then make the arc surface of the fork body 11 contact with the mold 7, start the spotlight 10 and the linear motor 14, and the linear motor 14 moves on the guide rail 13, thereby driving the spotlight 10 to move, changing the position of the spotlight 10, and illuminating the fit between the fork body 11 and the mold 7 from multiple positions. When the arc surface of the fork body 11 is worn, it cannot be completely fitted with the mold 7. At this time, light will pass through the gap and fall into the observation cavity 5, so that it is known that there is a defect in the fork body 11, and then the arc surface of the fork body 11 is detected, and the detection of the arc surface of the fork body 11 is completed.

[0028] Finally, it should be noted that: for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this utility model shall be included in the protection scope of this utility model.

Claims

1. A shift fork inspection tool, comprising a housing (1), characterized in that: The interior of the shell (1) is divided into a placement cavity (4) and an observation cavity (5), the placement cavity (4) and the observation cavity (5) are connected via a light hole (8), a spotlight (10) is provided on the top of the shell (1), and the spotlight (10) is installed on the top inner wall of the shell (1) via an adjustment component, a fixing rod (6) is fixedly connected to the inner wall of one side of the placement cavity (4), a mold (7) is provided on one side of the fixing rod (6), and the mold (7) and the fixing rod (6) are detachably connected via a mounting structure, and a shift fork body (11) is provided on one side of the mold (7).

2. A shift fork inspection tool according to claim 1, characterized in that: The adjustment assembly comprises a guide rail (13), the guide rail (13) is fixedly connected to the top of the placement cavity (4), multiple side outer walls of the guide rail (13) are slidably connected to a linear motor (14), and the spotlight (10) is fixed to the bottom of the linear motor (14).

3. A shift fork inspection tool according to claim 1, characterized in that: The mounting structure comprises a card slot (15) and a card frame (16), wherein the card slot (15) is provided at the top of the fixing rod (6), the card frame (16) is fixedly connected to one side of the shift fork body (11), and the card frame (16) is inserted into the card slot (15).

4. A shift fork inspection tool according to claim 1, characterized in that: An observation platform (9) is provided at the bottom of the observation chamber (5).

5. A shift fork inspection tool according to claim 4, characterized in that: The top of the observation platform (9) is provided with a plurality of sets of scales (12), and the plurality of scales (12) are evenly distributed.

6. The shift fork inspection tool according to claim 1, characterized in that: Two door panels (2) are rotatably connected between the top and bottom of the placement cavity (4), and the two door panels (2) are symmetrically distributed.

7. A shift fork inspection tool according to claim 4, characterized in that: A one-way light-transmitting glass (3) is fixedly connected to the notch of the observation cavity (5).