Shifting fork tool and correction method
By designing a shift fork fixture and a calibration method, and utilizing the cooperation of a base plate, end positioning block, and calibration plate, high-precision bonding of the shift fork ceramic parts and accurate calibration of the fork teeth were achieved. This solved the problem of insufficient precision in existing technologies and improved the installation accuracy and service life of the shift fork.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU TONGKUN HENGYANG CHEM FIBER CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technology, the ceramic parts of the shift fork are not glued with low precision, resulting in frequent damage and requiring re-gluing.
A shift fork fixture was designed, including a base plate and an adjustable end positioning block. Through the cooperation of the positioning groove and the pressure block, a high-precision connection between the ceramic part and the shift fork is achieved. A correction plate is also provided to correct the shift fork teeth. The cooperation of the correction plate and the pressure component ensures that the fork teeth accurately enter the positioning groove.
This improved the installation accuracy of the ceramic parts and the shift fork, reduced the probability of damage to the ceramic parts, ensured the accuracy of the shift fork teeth angle, and avoided poor forming.
Smart Images

Figure CN122008111A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of shift forks, and in particular to a shift fork tooling and calibration method. Background Technology
[0002] The Japanese TMT winding head market has a high market share in the chemical fiber industry. The shift fork is the most important component of the winding head. The ceramic part of the three-bladed shift fork is easily damaged. If it is damaged, it needs to be re-attached. The existing attachment method has low precision. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, one of the purposes of this application is to provide a shift fork fixture and a correction method, which has the advantage of improving the accuracy when bonding ceramic parts.
[0004] The above-mentioned objective of this application is achieved through the following technical solution: A shift fork fixture includes a base plate, on which a positioning groove is provided, and an end positioning block is detachably connected in the positioning groove. The relative position of the end positioning block and the base plate is adjustable, and a pressure block is also detachably connected to the base plate.
[0005] By adopting the above technical solution, that is, during use, the relative position of the adjusting end positioning block and the base plate is adjusted, the blade of the shift fork is placed in the positioning groove, the ceramic part and the fork teeth of the shift fork are bonded together, and pressure is applied to them by the pressure block to achieve the connection between the two, thus effectively improving the installation accuracy.
[0006] In a preferred embodiment, this application may be further configured such that: a calibration plate is also provided on the substrate, and the calibration plate and the substrate are detachably connected.
[0007] By adopting the above technical solution, the presence of the correction plate can correct the fork teeth of the shift fork.
[0008] This application also discloses a shift fork calibration method: using the above-mentioned shift fork fixture, including the following steps: placement step: placing the shift fork on the substrate; installation step: installing the calibration plate on the substrate and contacting the shift fork; calibration step: applying force to the calibration plate to move the fork teeth of the shift fork into the positioning groove; holding step: holding the fork teeth of the shift fork in the positioning groove for a period of time.
[0009] By adopting the above technical solution, since the shift fork is made of aluminum, which is relatively soft, and each angle is 120 degrees, the angle of some teeth of the shift fork may deviate during long-term high-speed operation. The angle deviation can easily cause poor wire cake forming. Therefore, when there is a deviation in the angle of the teeth, the shift fork is placed on the base plate, and the correction plate is placed on the base plate so that the correction plate is in contact with the shift fork. By applying force to the correction plate, force is applied to the shift fork, so that the teeth of the shift fork enter the positioning groove under the action of the plate, thereby achieving the correction of the teeth.
[0010] In a preferred embodiment, this application may be further configured such that the calibration plate is provided with calibration teeth, which are used to abut against the fork teeth of the shift fork.
[0011] By adopting the above technical solution, the presence of the correction teeth makes it easier to contact the fork teeth.
[0012] In a preferred embodiment, this application may be further configured such that: a positioning post is provided on the substrate, a correction plate is sleeved on the positioning post, and a pressure applying member is detachably connected to the positioning post, the pressure applying member being used to apply pressure to the correction plate.
[0013] By adopting the above technical solution, the presence of the pressure-applying component ensures that the correction plate will not wobble or affect the correction when a correction force is applied to it.
[0014] In a preferred embodiment, the present application may be further configured such that: a receiving groove is also provided on the substrate, the receiving groove is located on both sides of the positioning groove, the receiving groove and the positioning groove are connected, and the receiving groove is used to receive the correction teeth.
[0015] By adopting the above technical solution, the presence of the receiving groove can position the correction teeth, thereby ensuring a good correction effect.
[0016] In a preferred embodiment, this application may be further configured to include a removal step in which the fork teeth of the shift fork to be corrected are placed in a positioning groove, and then the moving end positioning block positions the end of the fork teeth of the shift fork, and then the ceramic piece is removed from the fork teeth of the shift fork.
[0017] By adopting the above technical solution, namely removing the ceramic parts before calibration, the probability of affecting the connection strength between the ceramic parts and the fork teeth or damaging the ceramic parts during the calibration process is reduced. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the shift fork tooling structure of this application.
[0019] Reference numerals: 1. Base plate; 11. Positioning groove; 12. Receiving groove; 2. End positioning block; 3. Pressing block; 4. Positioning post; 41. Threaded post; 5. Correction plate; 51. Through hole; 52. Correction tooth. Detailed Implementation
[0020] The present application will be further described in detail below with reference to the accompanying drawings.
[0021] Reference Figure 1 The present application discloses a shift fork fixture, including a base plate 1. The base plate 1 is provided with positioning grooves 11. In this embodiment, there are three positioning grooves 11, which correspond one-to-one with the fork teeth of the shift fork. Each positioning groove 11 can be detachably connected (e.g., through threaded connection) to an end positioning block 2. The relative position of the end positioning block 2 and the base plate 1 is adjustable. The base plate 1 can also be detachably connected (e.g., through threaded connection) to a pressure block 3, which corresponds one-to-one with the positioning groove 11. The base plate 1 is provided with positioning posts 4.
[0022] When installing the ceramic piece, the shift fork is placed on the positioning post 4 so that the fork teeth are located in the positioning groove 11. The position of the adjusting end positioning block 2 is used to position the end of the fork teeth. Then the ceramic piece is bonded to the fork teeth, and pressure is applied to the bonded ceramic piece by the pressure block 3.
[0023] When the shift fork fixture is used for aligning the fork teeth of the shift fork, it also includes an alignment plate 5. The alignment plate 5 and the base plate 1 are detachably connected. A threaded post 41 is concentrically connected to the positioning post 4. The alignment plate 5 has a through hole 51 through which the threaded post 41 passes. The positioning post 4 has a pressure-applying component (such as a nut). The pressure-applying component and the threaded post 41 are connected by threads to apply pressure to the alignment plate 5. The alignment plate 5 also has alignment teeth 52 for abutting against the fork teeth of the shift fork. The base plate 1 also has a receiving groove 12, which is located on both sides of the positioning groove 11 and is connected to the positioning groove 11. The receiving groove 12 is used to receive the alignment teeth 52.
[0024] This application also discloses a shift fork calibration method: using the above-mentioned shift fork fixture, the method includes the following steps: Removal steps: Place the waterproof component (such as plastic film, rubber film, etc.) in the positioning groove 11, place the fork teeth of the shift fork that needs to be corrected in the positioning groove 11, and then move the end positioning block 2 to position the end of the fork teeth of the shift fork. The waterproof component forms a seal under the action of the end positioning block (such as the waterproof component filling the gap between the end positioning block 2 and the positioning groove 11, or the waterproof component bending near the end positioning block 2 and being supported by the end positioning block 2). Connect the pressure plate and the base plate 1. An elastic component (such as a rubber layer) is provided between the pressure plate and the fork teeth of the shift fork. The elastic component is subjected to pressure and comes into contact with the fork teeth and the waterproof component to form a seal. Inject a solvent into the cavity formed by the waterproof component and the elastic component to dissolve the adhesive that bonds the ceramic component and the fork teeth. After the adhesive is dissolved, remove the ceramic component from the fork teeth of the shift fork. Placement steps: Place the shift fork on the base plate 1 so that the shift fork is sleeved on the positioning post 4, so that the fork teeth of the shift fork that does not need to be corrected are located in the positioning groove 11. Installation steps: Pass the correction plate 5 through the threaded post 41, connect the applicator and the threaded post 41, and apply pressure to the correction plate 5 so that the correction plate 5 is installed on the base plate 1, and the correction teeth 52 are located in the receiving groove and in contact with the fork teeth of the shift fork. Calibration steps: Apply force to the calibration plate 5 to move the fork teeth of the calibrator to the positioning groove 11. Holding step: Keep the fork teeth of the shift fork in the positioning groove 11 for a period of time.
[0025] The implementation principle of this embodiment is as follows: In use, the above-mentioned tooling can achieve high-precision bonding of the ceramic parts of the shift fork, and can also correct the difference of the shift fork.
[0026] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A shift fork fixture, characterized in that: Includes a substrate (1), on which a positioning groove (11) is provided, and an end positioning block (2) is detachably connected in the positioning groove (11). The relative position of the end positioning block (2) and the substrate (1) is adjustable, and a pressure block (3) is also detachably connected to the substrate (1).
2. The shift fork fixture according to claim 1, characterized in that: The substrate (1) is further provided with a correction plate (5), and the correction plate (5) and the substrate (1) are detachably connected.
3. A method for correcting a shift fork, characterized in that: The shift fork fixture as described in claim 2 includes the following steps: Placement step: placing the shift fork on the base plate (1); Installation step: installing the correction plate (5) on the base plate (1) and contacting the shift fork; Correction step: applying force to the correction plate (5) to move the fork teeth of the shift fork into the positioning groove (11); Holding step: holding the fork teeth of the shift fork in the positioning groove (11) for a period of time.
4. The shift fork correction method according to claim 3, characterized in that: The calibration plate (5) is provided with calibration teeth (52), which are used to abut against the fork teeth of the shift fork.
5. The shift fork calibration method according to claim 4, characterized in that: The base plate (1) is provided with a positioning post (4), and the correction plate (5) is sleeved on the positioning post (4). A pressure-applying component is detachably connected to the positioning post (4) and is used to apply pressure to the correction plate (5).
6. The shift fork correction method according to claim 5, characterized in that: The substrate (1) is also provided with a receiving groove (12), which is located on both sides of the positioning groove (11). The receiving groove (12) and the positioning groove (11) are connected. The receiving groove (12) is used to receive the correction tooth (52).
7. The shift fork correction method according to claim 3, characterized in that: It also includes a removal step, in which the fork teeth of the shift fork that needs to be corrected are placed in the positioning groove (11), and then the moving end positioning block (2) positions the end of the fork teeth of the shift fork, and then the ceramic piece is removed from the fork teeth of the shift fork.