Precision turning outer circle clamping mechanism of shifting fork

Abstract

The utility model relates to part processing technical field, concretely is the fork fine turning outer circle clamping mechanism, include: chassis, the connecting rod is from the middle of chassis, support is set up on the one side disc surface of chassis, is provided with the support positioning member on the support, lever mechanism is set up on the one side disc surface of chassis, and one end of lever mechanism is movably connected with the connecting rod, positioning core shaft sleeve is set up on the support perpendicularly, and the upper end of positioning core shaft sleeve realizes positioning support work piece with the support positioning member cooperation, the inside of the upper end of positioning core shaft sleeve is provided with the clamping piece, the inside of positioning core shaft sleeve is slidably installed with the taper pin, and the bottom of taper pin is movably connected with the other end of lever mechanism, and the top is contacted with the clamping piece, and the clamping piece is realized clamping work piece through linear motion inside support, the utility model can realize automatic clamping, improve processing efficiency, and clamping is firm, solved the problem that the artificial because of clamping is not stable and further influence processing quality and safety.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically to a clamping mechanism for precision turning the outer diameter of a shift fork. Background Technology

[0002] The shift fork is a key component in a mechanical transmission system, primarily used to achieve functions such as speed change and clutch control. For example... Figure 1 The diagram shows a schematic of the shift fork, with point a indicating the area requiring precision machining. Currently, shift forks are typically clamped manually during the precision machining of their outer diameter. This results in low machining efficiency and is susceptible to instability due to human error, which in turn affects machining quality and safety. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model proposes a clamping mechanism for precision machining of the outer diameter of a shift fork.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: The outer diameter clamping mechanism for the shift fork precision machining includes: Chassis; The connecting rod passes through the middle of the chassis; The bracket is mounted on one side of the chassis, and the bracket is equipped with support and positioning components. The lever mechanism is located on one side of the chassis and is movably connected to one end of the connecting rod. The positioning mandrel sleeve is vertically mounted on the bracket. The upper end of the positioning mandrel sleeve cooperates with the support positioning component to position and support the workpiece. A clamping component is provided inside the upper end of the positioning mandrel sleeve. A tapered pin is slidably installed inside the positioning mandrel sleeve. The bottom of the tapered pin is movably connected to the other end of the lever mechanism, and the top of the pin contacts the clamping component. The workpiece is clamped by the linear motion of the internal clamping component.

[0005] As a further improvement of this utility model, the lever mechanism includes a hinge seat mounted on the chassis and an L-shaped lever hinged in the middle to the hinge seat, with one end of the L-shaped lever being movably connected to a connecting rod.

[0006] As a further improvement of this utility model, the other end of the L-shaped lever is movably connected to a fisheye bearing, and the tapered pin is threadedly connected inside the fisheye bearing.

[0007] As a further improvement of this utility model, the bracket is provided with a sleeve hole, and a screw hole is connected to one side of the sleeve hole. The positioning mandrel is set in the sleeve hole, and an internal hex screw for fixing the positioning mandrel is provided in the screw hole.

[0008] As a further improvement of this utility model, the clamping member includes two symmetrically distributed inner support keys, and the upper end of the positioning mandrel sleeve is provided with two symmetrically distributed keyways, with the two inner support keys correspondingly located in the two keyways.

[0009] As a further improvement of this utility model, the key surfaces on the two inner support keys that contact the tapered pins are inclined surfaces.

[0010] As a further improvement of this utility model, the support positioning component includes a positioning column set on the bracket, a support seat set with the same center as the positioning column, and two small support columns symmetrically arranged on the support seat.

[0011] The beneficial effects of this utility model are: This utility model provides a clamping mechanism for machining the outer diameter of a shift fork. Through a connecting rod, lever mechanism, tapered ejector pin, and inner support key, the horizontal movement of the connecting rod is converted into a vertical linear movement, which pushes the tapered ejector pin and the inner support key to clamp the workpiece and realize the machining of the outer diameter. Compared with the prior art, this mechanism can achieve automatic clamping, improve machining efficiency, and clamp firmly, solving the problem that manual clamping is unstable and thus affects machining quality and safety. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the shift fork structure; Figure 2 This is a schematic diagram of the structure of this utility model (clamping fork state); Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the bracket and supporting positioning components. Figure 5 A schematic diagram showing the connection of the connecting rod, lever mechanism, tapered pin, and inner support key; Figure 6 This is a schematic diagram of the positioning mandrel sleeve structure.

[0013] In the diagram: 1. Chassis; 2. Connecting rod; 3. Bracket; 4. Hinge seat; 5. L-shaped lever; 6. Fisheye bearing; 7. Positioning mandrel sleeve; 8. Tapered ejector pin; 9. Sleeve hole; 10. Screw hole; 11. Socket headstock screw; 12. Internal support key; 13. Keyway; 14. Positioning pin; 15. Support seat; 16. Support cylinder; 17. Shift fork. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] like Figures 1 to 6 As shown, the outer diameter clamping mechanism for precision machining of shift forks mainly includes a chassis 1, a connecting rod 2, a bracket 3, a lever mechanism, a support and positioning component, a positioning mandrel sleeve 7, a tapered ejector pin 8, and a clamping component.

[0016] This mechanism is fixedly connected to the rotating mechanism of the lathe via the chassis 1, and is used to drive the shift fork 17 to perform precision turning of its outer diameter. The connecting rod 2 passes through the middle of the chassis 1, and the other end of the connecting rod 2 is connected to the hydraulic rod on the lathe, providing power for the horizontal movement of the connecting rod 2. The bracket 3 and the lever mechanism are disposed on the front side of the chassis 1, and the bracket 3 is perpendicular to the front side of the chassis 1. The support positioning member and the positioning mandrel sleeve 7 are disposed on the bracket 3, and the upper ends of the support positioning member and the positioning mandrel sleeve 7 are located on the same side of the bracket 3. The upper end of the positioning mandrel sleeve 7 and the support positioning member serve to position and support the shift fork 17. The tapered ejector pin 8 is slidably installed inside the positioning mandrel sleeve 7, and the clamping member is disposed on the upper end of the positioning mandrel sleeve 7 and contacts the tapered ejector pin 8. The clamping member is used to clamp the shift fork 17. One end of the lever mechanism is movably connected to one end of the connecting rod 2, and the other end is movably connected to the bottom of the tapered ejector pin 8. The lever mechanism converts the horizontal movement of the connecting rod 2 into the vertical movement of the tapered pin 8, thereby pushing the inner support clamping member to move outward, thus achieving the purpose of clamping the shift fork 17.

[0017] As a further improvement of this embodiment, the bracket 3 is provided with a sleeve hole 9, and a screw hole 10 is connected to one side of the sleeve hole 9. The positioning mandrel sleeve 7 is disposed in the sleeve hole 9, and an internal hex screw 11 is disposed in the screw hole 10. The internal hex screw 11 is used to fix the positioning mandrel sleeve 7.

[0018] As a further improvement to this embodiment, the lever mechanism includes a hinge seat 4, an L-shaped lever 5, and a fisheye bearing 6. The hinge seat 4 is disposed on the chassis 1. The middle part of the L-shaped lever 5 is hinged to the hinge seat 4 by a fastening pin and a hexagonal nut. The upper end of the L-shaped lever 5 is movably connected to one end of the connecting rod 2 by a fastening pin and a hexagonal nut. The lower end of the L-shaped lever 5 is movably connected to the fisheye bearing 6 by a fastening pin and a hexagonal nut. The fisheye bearing 6 is threaded to the bottom of the tapered pin 8 and fixed by a nut.

[0019] As a further improvement to this embodiment, the clamping member includes two symmetrically distributed inner support keys 12. The upper end of the positioning mandrel sleeve 7 is provided with two symmetrically distributed keyways 13, and the two inner support keys 12 are correspondingly located within the two keyways 13. Furthermore, the key surfaces on the two inner support keys 12 that contact the tapered ejector pin 8 have an inclined surface structure.

[0020] As a further improvement of this embodiment, the support positioning component includes a positioning column 14 disposed on the bracket 3, a support base 15 disposed at the same center as the positioning column 14, and two small support columns 16 symmetrically disposed on the support base 15.

[0021] Working principle and usage process of this utility model: In use, the mechanism is first mounted on the lathe's rotating mechanism via the chassis 1. One end of the connecting rod 2 is connected to the hydraulic rod on the lathe. Next, the shift fork 17 is placed on the positioning mandrel sleeve 7 and the positioning post 14, with the bottom of the shift fork 17 in horizontal contact with the two supporting small cylinders 16. Then, the lathe hydraulic rod pulls the connecting rod 2, converting it into a vertical linear motion via a lever mechanism, pushing the tapered ejector pin 8 upwards. The two inner support keys 12 clamp the inner wall of the shift fork 17, completing the clamping process. Next, the... Figure 1 The outer diameter of point a is precision machined.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for precision machining the outer diameter of a shift fork, characterized in that: include: Chassis (1); The connecting rod (2) passes through the middle of the chassis (1); The bracket (3) is set on one side of the chassis (1), and the bracket (3) is provided with a support positioning component; The lever mechanism is set on one side of the chassis (1), and the lever mechanism is movably connected to one end of the connecting rod (2); The positioning mandrel sleeve (7) is vertically set on the bracket (3). The upper end of the positioning mandrel sleeve (7) cooperates with the support positioning component to position and support the workpiece. The upper end of the positioning mandrel sleeve (7) is equipped with a clamping component. The positioning mandrel sleeve (7) is slidably installed with a tapered pin (8). The bottom of the tapered pin (8) is movably connected to the other end of the lever mechanism, and the top is in contact with the clamping component. The workpiece is clamped by the linear motion of the internal support clamping component.

2. The clamping mechanism for precision machining of the outer diameter of the shift fork according to claim 1, characterized in that: The lever mechanism includes a hinge seat (4) mounted on the chassis (1) and an L-shaped lever (5) hinged in the middle to the hinge seat (4). One end of the L-shaped lever (5) is movably connected to the connecting rod (2).

3. The clamping mechanism for precision machining the outer diameter of the shift fork according to claim 2, characterized in that: The other end of the L-shaped lever (5) is movably connected to a fisheye bearing (6), and a tapered pin (8) is threaded into the fisheye bearing (6).

4. The clamping mechanism for precision machining the outer diameter of the shift fork according to claim 1, characterized in that: The bracket (3) is provided with a sleeve hole (9), and a screw hole (10) is connected to one side of the sleeve hole (9). The positioning mandrel sleeve (7) is provided in the sleeve hole (9), and an internal hex screw (11) for fixing the positioning mandrel sleeve (7) is provided in the screw hole (10).

5. The clamping mechanism for precision machining the outer diameter of the shift fork according to claim 1, characterized in that: The clamping component includes two symmetrically distributed inner support keys (12), and the upper end of the positioning mandrel sleeve (7) is provided with two symmetrically distributed keyways (13), with the two inner support keys (12) corresponding to the two keyways (13).

6. The clamping mechanism for precision machining the outer diameter of the shift fork according to claim 5, characterized in that: The key surfaces on the two inner support keys (12) that contact the tapered pins (8) are inclined surfaces.

7. The clamping mechanism for precision machining the outer diameter of the shift fork according to claim 1, characterized in that: The support positioning component includes a positioning column (14) set on the bracket (3), a support seat (15) set with the same center as the positioning column (14), and two small support columns (16) symmetrically set on the support seat (15).

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