Clamping tool for shifting fork machining

Abstract

The utility model relates to the technical field of tool clamps, in particular to a clamping tool for shifting fork machining, which comprises a supporting base and a clamping assembly, a plurality of connecting pieces are connected to two ends of the supporting base, a containing cavity is formed in one side, far away from a shifting fork, of the supporting base, and a fixing assembly comprises a positioning assembly and the clamping assembly. The positioning assembly and the two clamping assemblies are distributed in a triangular shape and are arranged on the two sides of the supporting base correspondingly. According to the shifting fork positioning device, the concentric ring bodies in the positioning assembly can be attached to shifting fork heads of different sizes through the nesting structures, the concentric ring bodies with the diameters smaller than the diameters of the shifting fork heads play a role in positioning the shifting fork heads, and the concentric ring bodies with the diameters larger than the diameters of the shifting fork heads are matched with the movable base to play a role in fixing the concentric ring bodies in the vertical direction. The two clamping rods and the concentric ring body are distributed in a triangular shape, the two clamping rods make contact with the fork arm part of the shifting fork when moving, and the position of the shifting fork in the horizontal direction is limited through three-point contact so that the shifting fork can be prevented from moving in the drilling process.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, concretely relates to a kind of clamping tool for shift fork processing. BACKGROUND

[0002] The shift fork is a component on the automobile gearbox, connected with the gear handle, located at the lower end of the handle, and drives the intermediate gear to change the input / output speed ratio. The shift fork is mainly used for clutch gear shifting.

[0003] Chinese patent with publication number CN221891405U discloses a special fixture for shift fork drilling, which includes a mounting base, the edges of the mounting base are symmetrically provided with mounting legs, the top end of the mounting base is fixedly connected with an adjusting clamping mechanism, a fixed slot is formed in the inside of the mounting base, and a connecting plug is movably connected to the inside of the fixed slot. The adjusting clamping mechanism limits both ends of the shift fork body, allowing the opening of the shift fork body to be clamped on the outside of the surface of the auxiliary limiting clamping mechanism. The adjusting clamping mechanism can be adjusted to clamp the shift fork body between the adjusting clamping mechanism and the auxiliary limiting clamping mechanism. The corresponding auxiliary limiting clamping mechanism can be selected according to the size of the shift fork body and installed through the connection between the fixed slot and the connecting plug. The overall structure is simple and convenient to use.

[0004] However, in the above technical solution, only the corresponding auxiliary limiting clamping mechanism is selected according to the size of the shift fork body and installed through the connection between the fixed slot and the connecting plug. However, the device needs to be replaced with different auxiliary limiting clamping mechanisms to adapt to shift forks of different sizes during use. When multiple shift forks of different diameters need to be processed, frequent replacement is required. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problems in the background art and provides a clamping tool for shift fork processing.

[0006] The utility model discloses a technical scheme: a shift fork processing's clamping frock, including support base, its both ends are connected with a plurality of connecting piece, and the support base is away from shift fork one side and is provided with containing cavity, fixed component, it includes positioning assembly and clamping component, positioning assembly and two clamping components are triangularly distributed, and positioning assembly and clamping component are arranged respectively on the both sides of support base, positioning assembly includes first threaded rod, positioning ring and mobile seat, and first threaded rod is rotatably connected on support base, and first threaded rod is connected with adjusting knob, and mobile seat is threadedly connected on mobile seat, and a plurality of concentric positioning rings are nested structure and set up on positioning ring, clamping component includes second threaded rod and clamping piece, and second threaded rod sets up in containing cavity, and clamping piece is connected on second threaded rod, under the use state of clamping component, two second threaded rods rotate and drive clamping piece to push shift fork and move to the direction of positioning assembly, and first threaded rod rotates and drives mobile seat and positioning ring to move down and forms multiple point contact with shift fork and limits shift fork vertical and horizontal direction movement.

[0007] Preferably, the clamping component further comprises an adjusting handle connected to one end of the second threaded rod; and two fixed seats arranged in parallel, the fixed seats are connected in the containing cavity, and the other end of the second threaded rod is rotatably connected to the other fixed seat through one fixed seat.

[0008] Preferably, the clamping piece is composed of a moving block and a clamping rod, the moving block is threadedly connected to the second threaded rod, one end of the clamping rod is connected to the moving block, and the other end of the clamping rod passes through a guide groove formed on the support base and contacts the shift fork.

[0009] Preferably, an organ protective cover is sleeved on the second threaded rod, and the two ends of the organ protective cover are connected to the fixed seat and the moving block, respectively.

[0010] Preferably, the positioning assembly comprises a plurality of limiting rods, the number of the limiting rods is double that of the positioning rings, and a limiting block is connected to each limiting rod; and a plurality of elastic members correspond to the limiting rods, the elastic members are sleeved on the limiting rods, and the elastic members are between the limiting blocks and the mobile seat.

[0011] Preferably, the support base is connected to symmetrically arranged guide rods, and the movable seat is slidably connected to the guide rods.

[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0013] In the utility model, the plurality of concentric ring bodies in the positioning assembly can be fitted with shift fork prongs of different sizes through the nested structure, the concentric ring body smaller than the diameter of the shift fork prong plays a role in positioning the shift fork prong, and the concentric ring body larger than the diameter of the shift fork prong plays a role in fixing the concentric ring body in the vertical direction in cooperation with the mobile seat, the two clamping rods are triangularly distributed with the concentric ring body, and the two clamping rods contact the fork arm part of the shift fork when moving, three-point contact limits the position of the shift fork in the horizontal direction to prevent the shift fork from moving during drilling. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 A schematic diagram of the bottom structure supporting the base;

[0016] Figure 3 for Figure 1 A cross-sectional view;

[0017] Figure 4 for Figure 3 Enlarged view of the structure at point A.

[0018] Reference numerals in the attached drawings: 1. Support base; 2. Connecting piece; 3. First threaded rod; 4. Positioning ring; 5. Moving seat; 6. Second threaded rod; 7. Clamping component; 8. Adjusting handle; 9. Fixed seat; 10. Moving block; 11. Clamping rod; 12. Bellows protective cover; 13. Limiting rod; 14. Elastic component; 15. Guide rod. Detailed Implementation

[0019] Example 1

[0020] like Figures 1-4 As shown, the present invention proposes a clamping fixture for machining shift forks, comprising a support base 1 and a clamping assembly. Multiple connecting pieces 2 are connected to both ends of the support base 1. A receiving cavity is formed on the side of the support base 1 away from the shift fork. The fixing assembly includes a positioning assembly and a clamping assembly. The positioning assembly and the two clamping assemblies are triangularly distributed, and the positioning assembly and clamping assembly are respectively located on both sides of the support base 1. The positioning assembly includes a first threaded rod 3, a positioning ring 4, and a movable seat 5. The first threaded rod 3 is rotatably connected to the support base 1, and an adjustment knob is connected to the first threaded rod 3. The movable seat 5 is threadedly connected to the movable seat 5. Multiple concentric positioning rings 4 are nested on the positioning ring 4. The clamping assembly includes a second threaded rod 6 and a clamping member 7. The second threaded rod 6 is located within the receiving cavity, and the clamping member 7 is connected to the second threaded rod 6. In the usage state, the two second threaded rods 6 rotate, causing the clamping member 7 to push the shift fork towards the positioning assembly. The first threaded rod 3 rotates, causing the movable seat 5 and the positioning ring 4 to move downwards, forming multi-point contact with the shift fork and restricting its vertical and horizontal movement.

[0021] Example 2

[0022] like Figures 2-4Compared with the first embodiment, the detailed structure of the fixing assembly is recorded in the embodiment, the clamping assembly further comprises an adjusting handle 8 and a fixing seat 9, the adjusting handle 8 is connected to one end of the second threaded rod 6, the fixing seat 9 is provided with two parallel fixing seats 9, the fixing seat 9 is connected in the containing cavity, one end of the second threaded rod 6 passes through one fixing seat 9 and is rotationally connected with the other fixing seat 9;

[0023] In an optional embodiment, the clamping piece 7 is composed of a moving block 10 and a clamping rod 11, the moving block 10 is threadedly connected to the second threaded rod 6, one end of the clamping rod 11 is connected to the moving block 10, and the other end of the clamping rod 11 passes through the guide groove formed in the support base 1 and is in contact with the shift fork;

[0024] In an optional embodiment, the second threaded rod 6 is sleeved with an organ protective cover 12, and the two ends of the organ protective cover 12 are connected with the fixing seat 9 and the moving block 10, respectively; the organ protective cover 12 prevents metal debris generated by punching from entering the second threaded rod 6 and being stuck to affect normal movement;

[0025] The positioning assembly comprises a limiting rod 13, a limiting block and an elastic piece 14, the number of the limiting rod 13 is double that of the positioning ring 4, the limiting block is connected to the limiting rod 13, the number of the elastic piece 14 corresponds to that of the limiting rod 13, the elastic piece 14 is sleeved on the limiting rod 13, and the elastic piece 14 is between the limiting block and the moving seat 5; the elastic piece 14 is selected from but not limited to a spring;

[0026] In an optional embodiment, the support base 1 is connected with symmetrically arranged guide rods 15, and the movable seat is slidably connected with the guide rods 15.

[0027] In summary, when the utility model is used, the staff installs the support base 1 on the workbench through the connecting piece 2 on the support base 1, then places the shift fork to be processed on the support base 1, rotates the two adjusting handles 8 to drive the second threaded rod 6 to rotate, moves the moving block 10 along the central axis of the second threaded rod 6 in the horizontal direction, drives the clamping rod 11 to move and push the shift fork to move, so that the shift fork is close to the positioning assembly, rotates the adjusting knob to drive the first threaded rod 3 to rotate, moves the moving seat 5 in the vertical direction to drive the plurality of positioning rings 4 to move downward, the plurality of nested positioning rings 4 are close to the shift fork, the positioning ring 4 with a diameter smaller than the prong head of the shift fork can be in contact with the support base 1 to play a positioning role, and the positioning ring 4 with a diameter larger than the prong head of the shift fork is blocked by the prong head, cooperates with the downward moving moving seat 5 to limit the vertical movement of the prong head of the shift fork, so that the shift fork is fixed, after the punching is completed, reverses the first threaded rod 3 to lose the limitation of the vertical movement, and rotates any one of the second threaded rods 6 to make the clamping rod 11 away from the shift fork, so that the shift fork can be taken out.

[0028] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A fork machining clamping tool characterized by, The utility model relates to a supporting base (1) both ends are connected with a plurality of connecting sheets (2), and the supporting base (1) is provided with containing cavity away from the yoke side, The fixing assembly includes a positioning assembly and a clamping assembly, the positioning assembly and the two clamping assemblies are triangularly distributed, and the positioning assembly and the clamping assembly are arranged on the two sides of the supporting base (1) respectively; the positioning assembly includes a first threaded rod (3), a positioning ring (4) and a moving seat (5), the first threaded rod (3) is rotatably connected to the supporting base (1), an adjusting knob is connected to the first threaded rod (3), the moving seat (5) is threadedly connected to the moving seat (5), and a plurality of positioning rings (4) with the same center are arranged in a nested structure on the positioning ring (4); the clamping assembly includes a second threaded rod (6) and a clamping piece (7), the second threaded rod (6) is arranged in the containing cavity, and the clamping piece (7) is connected to the second threaded rod (6); in the use state of the clamping assembly, the two second threaded rods (6) rotate to drive the clamping piece (7) to push the yoke to move towards the positioning assembly, and the first threaded rod (3) rotates to drive the moving seat (5) and the positioning ring (4) to move downwards to form multi-point contact with the yoke and limit the vertical and horizontal movement of the yoke. The clamping assembly further includes 2. The fork machining clamping tool according to claim 1, characterized in that, An adjusting handle (8) is connected to one end of the second threaded rod (6); Two fixed seats (9) are arranged in parallel, the fixed seat (9) is connected in the containing cavity, and one end of the second threaded rod (6) penetrates through one fixed seat (9) and is rotatably connected to the other fixed seat (9). The clamping piece (7) is composed of a moving block (10) and a clamping rod (11), the moving block (10) is threadedly connected to the second threaded rod (6), one end of the clamping rod (11) is connected to the moving block (10), and the other end of the clamping rod (11) penetrates through a guide groove formed in the supporting base (1) and contacts the yoke.

3. The fork machining clamping tool according to claim 1, characterized in that, An organ protective cover (12) is arranged on the second threaded rod (6), and the two ends of the organ protective cover (12) are connected to the fixed seat (9) and the moving block (10) respectively.

4. The fork machining clamping tool according to claim 1, characterized in that, The positioning assembly includes 5. The shift fork machining clamp fixture of claim 1, wherein, A limiting rod (13) is provided, the number of the limiting rod (13) is double that of the positioning ring (4), and a limiting block is connected to the limiting rod (13); The number of the elastic member (14) corresponds to that of the limiting rod (13), the elastic member (14) is sleeved on the limiting rod (13), and the elastic member (14) is between the limiting block and the moving seat (5). The supporting base (1) is connected with symmetrically arranged guide rods (15), and the movable seat is slidably connected to the guide rods (15).

6. The shift fork machining clamp fixture of claim 1, wherein, ​

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