Gear shifting fork clamp

Abstract

The utility model relates to a gear shifting fork clamp. The gear shifting fork clamp comprises a bottom plate, a mounting plate, a positioning block and a tensioning mechanism, the mounting plate is perpendicularly and fixedly connected with the bottom plate, the positioning block is fixedly connected with the mounting plate, the tensioning mechanism is fixedly connected with the mounting plate, and the positioning block and the tensioning mechanism meet a certain position relation. And when the central shaft hole of the gear shifting fork is clamped on the tensioning mechanism, the fork opening of the gear shifting fork is clamped on the positioning block. According to the gear shifting fork, the center shaft hole and the fork opening of the gear shifting fork are fixed through the tensioning mechanism and the positioning block respectively, fixing is stable, positioning is accurate, dismounting and mounting are more convenient, and production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, in particular to a gear shift fork fixture. Background Art

[0002] The shift fork is an important component in the automobile gearbox. It is mainly used to shift the gear wheel to achieve gear switching. The function of the fixture is to achieve workpiece positioning and clamping. As a commonly used process equipment for mechanical processing, the rationality of the fixture design directly determines the accuracy and production efficiency of the processed workpiece. However, when processing special-shaped parts (shift forks), the workpiece is usually installed on the mounting seat manually through bolts. The drilling is difficult to correct and the positioning is poor, resulting in a low processing qualification rate. At the same time, there are multiple clamping errors and other defects. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a shift fork clamp.

[0004] A shift fork clamp comprises a base plate, a mounting plate, a positioning block and a tensioning mechanism, wherein the mounting plate is vertically fixed to the base plate, the positioning block is fixed to the mounting plate, the tensioning mechanism is fixed to the mounting plate, and the positioning block and the tensioning mechanism satisfy a certain positional relationship, so that when the central axis hole of the shift fork is clamped on the tensioning mechanism, the fork opening of the shift fork is clamped on the positioning block.

[0005] The shift fork clamp described in the utility model fixes the central axis hole and the fork opening of the shift fork respectively by arranging a tensioning mechanism and a positioning block, which not only ensures stable fixing and accurate positioning, but also makes assembly and disassembly more convenient, thereby effectively improving production efficiency.

[0006] Furthermore, the tensioning mechanism includes a spring clip, which is mounted on the mounting plate and is used to clamp the central axis hole of the shift fork. By clamping the shift fork with the spring clip, a more stable fixation can be obtained, and installation and disassembly are convenient.

[0007] Furthermore, the tensioning mechanism further comprises a pull rod, one end of which is provided with a protrusion protruding in the axial direction, and the pull rod is passed through the spring clip so that the protrusion is clamped in the spring clip and can move along the central axis of the spring clip. The pull rod is provided to adjust the tensioning state of the spring clip, thereby further obtaining a better fixing effect.

[0008] Furthermore, the tensioning mechanism further comprises a driving device, which is connected to the pull rod and is used to drive the pull rod to move along the central axis of the spring clip. The driving device is provided to drive the pull rod to improve work efficiency.

[0009] Furthermore, the driving device includes a driving motor, a screw rod and a nut seat, the driving motor is drivingly connected to the screw rod, and the nut seat is penetrated on the screw rod and fixedly connected to the pull rod.

[0010] Furthermore, it also includes a bearing seat, which is installed on the mounting plate, and the end of the screw rod that is not connected to the drive motor is clamped in the bearing seat.

[0011] Furthermore, the positioning block is a T-shaped structure, and the vertical side of the T-shaped structure is horizontally pointed in the direction of the tensioning mechanism. By specially setting the positioning block as a T-shaped structure, a better fixing effect on the fork of the shift fork is obtained without consuming too much material.

[0012] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the shift fork fixture;

[0014] Figure 2 This is the front view of the shift fork clamp;

[0015] Figure 3 This is a side view of the shift fork clamp. DETAILED DESCRIPTION

[0016] 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. Obviously, 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 ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "fixed connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1 A shift fork fixture includes a base plate 10, a mounting plate 20, a positioning block 30 and a tensioning mechanism 40. The mounting plate 20 is mounted on the base plate 10, and the positioning block 30 and the tensioning mechanism 40 are mounted on the mounting plate 20. The positioning block 30 and the tensioning mechanism 40 satisfy a certain positional relationship, so that when the central axis hole of the shift fork is clamped on the tensioning mechanism 40, the fork of the shift fork is clamped on the positioning block 30, thereby achieving the fixing of the shift fork, which is convenient for the subsequent processing of the shift fork.

[0020] The mounting plate 20 is vertically mounted on the base plate 10, and the positioning block 30 is fixed on the mounting plate 20. The length of the positioning block 30 is equal to or slightly smaller than the inner diameter of the fork of the shift fork, so that the fork of the shift fork can be stably clamped on the positioning block 30. Preferably, the positioning block 30 is a T-shaped structure, and when mounted on the mounting plate 20, the vertical side of the T-shaped structure is horizontally pointed in the direction where the tensioning mechanism 40 is located. Compared with the long strip structure, the T-shaped structure can have more contact points with the fork of the shift fork, obtain a more stable positioning effect, and at the same time will not consume too much material.

[0021] The tensioning mechanism 40 includes a spring clip 41, the end of which is inserted into the mounting plate 20 and has a certain positional relationship with the positioning block 30, so that when the central shaft hole of the shift fork is sleeved on the spring clip 41, the fork of the shift fork can be clamped on the positioning block 30. The shaft diameter of the spring clip 41 is slightly larger than the shaft diameter of the central shaft hole of the shift fork, and has a certain deformation capacity, so that the spring clip 41 can shrink under the action of external force, which is convenient for the central shaft hole of the shift fork to be inserted; at the same time, after the shift fork is inserted, it can generate elastic force to lock the shift fork.

[0022] Preferably, the tensioning mechanism 40 further includes a pull rod 42. The front end of the pull rod 42 is provided with a protruding portion protruding in the radial direction. The front end of the pull rod 42 passes through the mounting plate 20 and is inserted into the spring clip 41 from the end thereof, so that the protruding portion is clamped in the spring clip 41. By adjusting the distance of the pull rod 42 inserted into the spring clip 41, the position of the protruding portion clamped in the spring clip 41 can be changed. When the protruding portion is located at the end of the spring clip 41 away from the mounting plate 20, the spring clip 41 is in a contracted state, the shaft diameter of the spring clip 41 is smaller than the shaft diameter of the central shaft hole of the shift fork, and the spring clip 41 has no force on the shift fork; when the protruding portion is located at the end of the spring clip 41 close to the mounting plate 20, the protruding portion expands the spring clip 41 radially outward, so that the spring clip 41 is in an open state, the shaft diameter of the spring clip 41 is larger than the shaft diameter of the central shaft hole of the shift fork, and the spring clip 41 clamps the shift fork. By providing the pull rod 42, the tensioning state of the spring clip 41 can be conveniently controlled, so that a better clamping effect can be obtained and the shift fork can be more conveniently disassembled and installed.

[0023] More preferably, the tensioning mechanism further includes a driving device. The driving device is connected to the pull rod 42, and drives the pull rod 42 to move forward and backward along the axial direction of the spring clip 41. Furthermore, the driving device includes a driving motor 43, a screw rod 44, a bearing seat 45, a nut seat 46 and a pull rod seat 47. The driving motor 43 is fixedly connected to the motor mounting plate, and the motor mounting plate is vertically mounted on the base plate 10. One end of the screw rod 44 is connected to the output shaft of the driving motor 43, and the screw rod 44 is driven to rotate by the driving motor 43, and the other end of the screw rod 44 is clamped in the bearing seat 45. The bearing seat 45 is penetrated on the mounting plate 20 and fixed by a clamping cover. The nut seat 46 is penetrated on the screw rod 44, and the internal thread in the seat matches the external thread of the screw rod 44, so that the screw rod 44 rotates and drives the nut seat 46 to move along the axial direction of the screw rod 44. The pull rod seat 47 is fixedly connected to the nut seat 46 and connected to the pull rod 42. The screw rod 44 is driven to rotate by the driving motor 43, and the screw rod 44 drives the pull rod seat 47 fixed to the nut seat 46 to move, thereby driving the pull rod 42 to move and change the tension state of the spring clip 41, thereby locking the shift fork.

[0024] When the shift fork clamp of the utility model is used, the central axis hole of the shift fork is aligned with the spring clip, the fork opening of the shift fork is aligned with the positioning block and then installed, and then the driving motor is started to rotate so that the spring clip is opened and the shift fork is locked.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] (1) By providing a tensioning mechanism and a positioning block to fix the central axis hole and the fork opening of the shift fork respectively, not only the fixation is stable, but also the disassembly and assembly is more convenient.

[0027] (2) By providing a spring clip and a pull rod, the central axis hole of the shift fork can be effectively locked, and a matching driving device is further provided to more conveniently operate the tensioning state of the spring clip, thereby effectively improving work efficiency.

[0028] (3) By specially setting the positioning block to a T-shaped structure, a better fixing effect on the fork of the shift fork is obtained without consuming too much material.

[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A shift fork clamp, characterized in that: It includes a base plate, a mounting plate, a positioning block and a tensioning mechanism, wherein the mounting plate is vertically fixed to the base plate, the positioning block is fixed to the mounting plate, the tensioning mechanism is fixed to the mounting plate, and the positioning block and the tensioning mechanism satisfy a certain positional relationship, so that when the central axis hole of the shift fork is clamped on the tensioning mechanism, the fork opening of the shift fork is clamped on the positioning block.

2. The shift fork clamp according to claim 1, characterized in that: The tensioning mechanism comprises a spring clip, which is mounted on the mounting plate and is used for clamping the central axis hole of the shift fork.

3. The shift fork clamp according to claim 2, characterized in that: The tensioning mechanism also includes a pull rod, one end of which is provided with a protruding portion protruding in the axial direction. The pull rod is passed through the spring clip so that the protruding portion is clamped in the spring clip and can move along the central axis of the spring clip.

4. The shift fork clamp according to claim 3, characterized in that: The tensioning mechanism also includes a driving device, which is drivingly connected to the pull rod and is used to drive the pull rod to move along the central axis of the spring clip.

5. The shift fork clamp according to claim 4, characterized in that: The driving device comprises a driving motor, a screw rod and a nut seat. The driving motor is connected to the screw rod by driving. The nut seat is passed through the screw rod and fixedly connected to the pull rod.

6. The shift fork clamp according to claim 5, characterized in that: It also includes a bearing seat, which is mounted on the mounting plate, and one end of the lead screw that is not connected to the drive motor is clamped in the bearing seat.

7. The shift fork clamp according to any one of claims 1 to 6, characterized in that: The positioning block is a T-shaped structure, and the vertical side of the T-shaped structure is horizontally pointing in the direction of the tensioning mechanism.

Images