A press-fit mechanism for shift fork accessories

Abstract

This utility model provides a shift fork accessory press-fitting mechanism, including a shift fork and a first mounting hole formed on the shift fork, and further including: a base plate, a positioning member provided on the base plate, a contour block provided on the positioning member, a contour groove formed on the contour block, and a cam driven wheel engaged in the contour groove; a clamping member; a transmission unit; and a press-fitting unit. In the shift fork accessory press-fitting mechanism provided by this utility model, when assembling the shift fork, the cam driven wheel of the pre-fitting member is engaged into the contour groove to improve the positioning effect of the cam driven wheel. Then, the clamping member fixes the shift fork so that the first mounting hole and the cam remain coaxial. At the same time, a pad abuts against both ends of the shift fork to prevent the shift fork from tilting during assembly, which would affect the press-fitting accuracy. Subsequently, the transmission unit presses the cam driven wheel into the shift fork, thereby quickly completing the press-fitting of the cam driven wheel and improving the assembly accuracy of the shift fork accessory.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and more specifically to a shift fork fitting press-fit mechanism. Background Technology

[0002] The shift fork is a transmission component inside a car's gearbox. It is mainly connected to the gear shift lever to control the meshing relationship of the gearbox's gear wheels, thereby changing the transmission ratio of the gear set and realizing the vehicle's speed control.

[0003] After the shift fork is manufactured, it needs to be assembled with components such as the cam driven wheel. Due to the limited assembly space of the shift fork, an extended lever arm and corresponding clamping tools need to be designed at the output end of the press machine to press the cam driven wheel into the shift fork. However, during the press process, if the assembly center axis of the cam driven wheel and the shift fork are not aligned, under the instantaneous impact, the press movement trajectory of the cam driven wheel will deviate from the corresponding hole of the shift fork, resulting in misalignment and squeezing. This will cause abnormal wear at the assembly position, which will affect the assembly accuracy of the shift fork. As a result, it is easy to loosen after long-term operation, causing abnormal noise or even failure of the gearbox. Summary of the Invention

[0004] The purpose of this invention is to solve the aforementioned problems in the existing technology.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a shift fork accessory pressing mechanism, comprising a shift fork and a first mounting hole formed on the shift fork, and further comprising: A base plate, wherein a positioning component is provided on the base plate, a contour block is provided on the positioning component, a contour groove is provided on the contour block, and a cam driven wheel is engaged in the contour groove; A clamping member is slidably disposed on the base plate, and the clamping member clamps and fixes the shift fork so that the first mounting hole and the cam driven wheel are kept on the same axis; A transmission unit is disposed on the base plate and cooperates with the clamping member. The transmission unit drives the clamping member to slide on the base plate to control the shift fork to press against the cam driven wheel. A pressing unit is disposed on the side of the base plate, and the pressing unit includes a pad that abuts against the lower end face of the shift fork.

[0006] In this embodiment of the utility model, the clamping member includes a sliding plate and a first cylinder disposed on the sliding plate, and the output end of the first cylinder is provided with a push rod for clamping the shift fork; The transmission unit includes a second hydraulic cylinder and a concave slider disposed at the output end of the second hydraulic cylinder, the concave slider abutting against the sliding plate; Guide rods are symmetrically arranged on the base plate, and the slide plate slides on the guide rods.

[0007] In this embodiment of the utility model, the concave slider is provided with a square groove and a stepped groove, both of which cooperate with the sliding plate.

[0008] In this embodiment of the utility model, the positioning component includes a second cylinder, a support frame, and a contour block symmetrically slidably disposed on the support frame. The second cylinder is disposed on the support frame, and its output end engages with the contour block. A fixing block is provided on the base plate, which is located between the two contour blocks. The cam driven wheel abuts against one side of the fixing block and engages with the contour block.

[0009] In this embodiment of the utility model, the contour block is provided with a first arc-shaped groove and a second arc-shaped groove, and the fixed block is provided with a support block; The cam driven wheel includes a protruding head and a pressing tail. The protruding head abuts against the end face of the support block and is engaged with the second arc-shaped groove, and the pressing tail is engaged with the second arc-shaped groove.

[0010] In this embodiment of the utility model, the slide plate is provided with an arc-shaped positioning block, and the shift fork is provided with a side cross block that abuts against the arc-shaped positioning block.

[0011] In this embodiment of the utility model, the shift fork is provided with a second mounting hole, and the pressing unit includes a pad, a fixing frame and a first hydraulic cylinder disposed on the fixing frame. A pressing head is provided on the output end of the first hydraulic cylinder, and a ball head seat that engages with the second mounting hole is engaged on the pressing head. The mounting bracket is provided with a pad located directly below the pressing head.

[0012] In this embodiment of the utility model, a shim is provided on the pad, and a second sensor that cooperates with the pad is provided on the fixing frame.

[0013] In this embodiment of the utility model, a base is slidably disposed on the fixing frame, the first oil cylinder is fixed on the base, and an adjusting rod that engages with the base is disposed on the fixing frame.

[0014] In this embodiment of the invention, a first sensor is provided on the base plate, and the first sensor cooperates with the transmission unit. Compared with the prior art, the advantages of this application are as follows: When assembling the shift fork, the driven wheel cam of the pre-fit component is engaged into the contour groove to improve the positioning effect of the driven wheel cam. Then, the shift fork is fixed by the clamping component to keep the first mounting hole and the cam coaxial. At the same time, the pad abuts against both ends of the shift fork to avoid the phenomenon of the shift fork being skewed during the assembly process, which would affect the pressing accuracy. Subsequently, the cam driven wheel is pressed into the shift fork by the transmission unit, thereby quickly completing the pressing of the cam driven wheel and improving the assembly accuracy of the shift fork component. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the position and structure of the practical mechanism assembled on the frame; Figure 2 This is a schematic diagram of the assembled structure of the overall components of the practical mechanism; Figure 3 It shows the structural diagram of the parts assembled on the base plate and the overall diagram of the shift fork separated from the clamping component; Figure 4 It is a plan view of the assembled parts on the base plate; Figure 5 These are a schematic diagram of the overall structure of the positioning component and enlarged views of some parts. Figure 6 This is a schematic diagram of the assembled press-fit unit; Figure 7 It is a plan view of the shift fork being assembled on the clamping component and the pressing head of the pressing unit being located directly above the shift fork; Figure 8 This is a schematic diagram of the overall structure of the first and second shift forks; Figure 9 This is the overall front plan view.

[0016] Explanation of reference numerals in the attached figures: 1. Base plate; 11. Guide rod; 12. First sensor; 13. Mounting slot; 14. Slide groove; 2. Shift fork; 201. First shift fork; 202. Second shift fork; 21. Ball joint; 22. First mounting hole; 23. Side cross block; 24. Second mounting hole; 25. Cam driven wheel; 251. Protruding head; 252. Press-fit tail; 3. Pressing unit; 31. Fixing frame; 32. Adjusting rod; 33. First hydraulic cylinder; 34. Base; 341. Guide block; 35. Pressing head; 36. Pad; 361. Elevating column; 37. Second sensor; 4. Transmission unit; 41. Second hydraulic cylinder; 42. Concave slider; 43. Square groove; 44. Stepped groove; 5. Clamping component; 51. First cylinder; 52. Arc-shaped positioning block; 53. Push rod; 54. Slide plate; 6. Positioning component; 61. Second cylinder; 62. Support frame; 63. Contouring block; 631. First arc groove; 632. Second arc groove; 64. Fixing block; 641. Support block; 7. Frame; 71. Display; 72. Control box. Detailed Implementation

[0017] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0018] like Figure 1-9 As shown, a shift fork accessory press-fitting mechanism includes a shift fork 2 and a first mounting hole 22 formed on the shift fork 2, and further includes: The base plate 1 is provided with a positioning component 6, and a contour block 63 is provided on the positioning component 6. A contour groove is provided on the contour block 63, and a cam driven wheel 25 is engaged in the contour groove. Clamping member 5 is slidably disposed on the base plate 1. Clamping member 5 clamps and fixes the fork 2 so that the first mounting hole 22 and the cam driven wheel 25 are kept on the same axis. The transmission unit 4 is mounted on the base plate 1 and cooperates with the clamping member 5. The transmission unit 4 drives the clamping member 5 to slide on the base plate 1 to control the shift fork 2 to press against the cam driven wheel 25. Pressing unit 3 is disposed on the side of base plate 1. Pressing unit 3 includes a pad 36 that abuts against the lower end face of shift fork 2.

[0019] Specifically, such as Figure 1 and Figure 9 As shown, the mechanism is fixed within the frame 7, on which a display 71 and a control box 72 are mounted. The display 71 enables visual operation, allowing for quick understanding of the current stage of the equipment's operation. In case of a malfunction, the emergency stop switch on the control box 72 can be pressed to stop the operation at any time and resume it immediately, avoiding re-pressing or product scrapping, improving overall efficiency and preventing material waste. Furthermore, the shift fork 2 has a first shift fork 201 and a second shift fork 202 (e.g., Figure 8As shown, this device can adapt to the pressing of multiple different types of shift forks 2 at one time, and can process two or more products simultaneously, significantly shortening the production cycle, reducing workpiece changeover time, and significantly improving efficiency. It also reduces manufacturing costs and the time required for parts disassembly and replacement. Furthermore, when pressing the shift fork 2, the ball head seat 21 is pre-engaged onto the pressing head 35 of the pressing unit 3, and the cam driven wheel 25 is engaged onto the contour block 63 of the positioning component 6. Then, the shift fork 2 is placed on the sliding plate 54, making it fit against the arc-shaped positioning block 52. Subsequently, the two first cylinders 51 operate to clamp the shift fork 2 via the push rod 53. At this time, the second cylinder 41 on the transmission unit 4 operates to drive the sliding plate 54 to slide on the base plate 1 via the concave slider 42, thereby pressing the shift fork 2 against the cam driven wheel 25, causing the cam driven wheel 25 to engage in the first mounting hole 22. After the cam driven wheel 25 is pressed... Figure 2 The pressing unit 3 on the left drives the pressing head 35 to slide toward the second mounting hole 24 until the ball head seat 21 is pressed into the second mounting hole 24, thus completing the pressing of the cam driven wheel 25 and the ball head seat 21. Compared with the traditional rubber hammer striking method, this mechanism improves the assembly efficiency and accuracy of the shift fork 2 in the part pressing process. During the pressing process, the first cylinder 51 always maintains the output state to ensure the stability of the shift fork 2 and improve the assembly accuracy of the part. After the shift fork 2 is placed in place, the first cylinder 51 then operates to output, so as to pre-push the push rod 53 at the output end into the first mounting hole 22 of the shift fork 2, further ensuring that the first mounting hole 22 of the shift fork 2 and the two cam driven wheels 25 are on the same axis, playing a positioning and guiding role.

[0020] As a further embodiment of this utility model, the clamping member 5 includes a sliding plate 54 and a first cylinder 51 disposed on the sliding plate. The output end of the first cylinder 51 is provided with a push rod 53 for clamping the fork 2. The transmission unit 4 includes a second hydraulic cylinder 41 and a concave slider 42 disposed at the output end of the second hydraulic cylinder 41. The concave slider 42 abuts against the slide plate 54. Guide rods 11 are symmetrically disposed on the base plate 1, and the slide plate 54 slides on the guide rods 11.

[0021] Specifically, after the shift fork 2 and the cam driven wheel 25 are installed in their respective positions, the second hydraulic cylinder 41 is used as a power source to drive the concave slider 42 to push the slide plate 54 to slide on the guide rod 11. At this time, the output shaft of the second hydraulic cylinder 41 is extended, so that the shift fork 2 is pre-pressed with the cam driven wheel 25 near the second hydraulic cylinder 41. After the pressing is completed, the output shaft of the second hydraulic cylinder 41 retracts to drive the shift fork 2 to press with another cam driven wheel 25, thereby completing the pressing of the cam driven wheel 25 and the shift fork 2. At least two sets of guide rods 11 are provided to guide the slide plate 54 so that the shift fork 2 can only reciprocate along the guide rod 11 with the slide plate 54.

[0022] As a further embodiment of this utility model, the concave slider 42 is provided with a square groove 43 and a stepped groove 44, both of which cooperate with the slide plate 54.

[0023] Specifically, the directional groove engages with the protruding block on the slide plate 54, while the stepped groove 44 abuts against the side wall of the slide plate 54, thereby improving the effect of pushing or pulling the slide plate 54, improving the driving accuracy of the concave slider 42 on the slide plate 54, and thus ensuring the assembly accuracy of the shift fork 2 and the cam driven wheel 25.

[0024] As a further embodiment of this utility model, the positioning component 6 includes a second cylinder 61, a support frame 62, and contour blocks 63 symmetrically slidably disposed on the support frame 62. The second cylinder 61 is disposed on the support frame 62, and its output end engages with the contour block 63. A fixing block 64 is disposed on the base plate 1, and the fixing block 64 is disposed between the two contour blocks 63. The cam driven wheel 25 abuts against one side of the fixing block 64 and engages with the contour block 63. The fixing block 64 is fixed to the base plate 1 by bolts and is attached to the base plate. The mounting slot 13 on the base plate 1 engages with the mounting block 64 to improve its stability. The contour block 63 slides within the groove 14 on the base plate 1, which guides and supports the contour block 63. Furthermore, after the first pre-pressing of the shift fork 2, the second cylinder 61 will drive the contour block 63 to descend as a whole to prevent interference with the shift fork 2 during subsequent pressing. The first cylinder 51 and the second cylinder 61 are both of the model: ADN-25-20-APA (brand name: Festo).

[0025] Specifically, there are two sets of second cylinders 61 and two sets of corresponding contour blocks 63. During the pressing process of the cam driven wheel 25, the two cam driven wheels 25 are snapped onto the contour block 63. At this time, a portion of the cylindrical part of the pressing tail 252 of the cam driven wheel 25 extends out onto the contour block 63. Then, the transmission unit 4 controls the clamping member 5 to slide on the base plate 1, so that the shift fork 2 is pre-pressed with the cam driven wheel 25 near the second cylinder 41, and the pressing distance is the cylindrical length of the extended part of the cam driven wheel 25. Then the cam... The second cylinder 61 under the drive wheel 25 retracts, driving the contour block 63 to slide downwards, so that the contour block 63 separates from the cam driven wheel 25. Then, the second cylinder 41 operates, driving the clamping member 5 and the shift fork 2 to slide synchronously, pressing the cam driven wheel 25 completely into the shift fork 2. Similarly, the cam driven wheel 25 away from the second cylinder 41 is pressed in the same way, but the second cylinder 41 operates by retraction, so that the cam driven wheel 25 is pre-pressed into the shift fork 2. Then, the second cylinder 61 at the bottom of the cam driven wheel 25 retracts, causing the contour block to... 63 separates from the cam driven wheel 25, and then the second cylinder 41 retracts again to complete the pressing of the cam driven wheel 25. This pressing method involves pre-pressing the cam driven wheel 25 so that it initially enters the shift fork 2, and then fully pressing the cam driven wheel 25 into the shift fork 2. This step-by-step pressing avoids deformation or damage to the second mounting hole 24 due to excessive single impact force, resulting in a more uniform stress distribution. After the first pressing for initial positioning, the coaxiality deviation between the cam driven wheel 25 and the shift fork 2 can be checked. The second pressing... The front-observable cam driven wheel 25 press-fit effect significantly reduces the risk of eccentric operation. This step-by-step calibration can reduce stress concentration at the edge of the shift fork 2 and extend fatigue life by more than 20%. The clamping position can be designed on the complex surface of the workpiece. First, a smaller pressure is used to pre-press it to a certain position, and then the clamping assembly (the clamping assembly is the aforementioned press-fitting unit 3) moves down. Then, a preset large pressure is used to complete the press-fitting, thereby realizing the press-fitting of more complex parts. Furthermore, because the initial pre-pressure is small, the workpiece is effectively protected, preventing workpiece damage and waste.

[0026] As a further embodiment of this utility model, the contour block 63 is provided with a first arc-shaped groove 631 and a second arc-shaped groove 632, while the fixed block 64 is provided with a support block 641. The cam driven wheel 25 includes a protruding head 251 and a pressing tail 252. The protruding head 251 abuts against the end face of the support block 641 and is engaged with the second arc-shaped groove 632, and the pressing tail 252 is engaged with the second arc-shaped groove 632.

[0027] Specifically, the structure of the protruding head 251 and the pressed tail 252 is as follows: Figure 5As shown, the pressing tail 252 is pressed into the second mounting hole 24 of the shift fork 2. The contour block 63 and the fixing block 64 serve as positioning devices. When the cam driven wheel 25 is pressed, the protruding head 251 of the cam driven wheel 25 is attached to the support block 641 and locked into the second arc groove 632. Then, the pressing tail 252 is locked into the first arc groove 631. At this time, a part of the cylindrical body of the pressing tail 252 will be located on the extension of the contour block 63 to facilitate the initial pre-pressing of the cam driven wheel 25 during the pressing process. The support block 641 plays a supporting and positioning role during pressing. This position is frequently subjected to force and is prone to wear. In order to avoid the wear affecting the assembly accuracy of the shift fork 2 and thus needing to be replaced at intervals, the support block 641 is a separate part, which can avoid the removal or replacement of a large number of parts and effectively reduce replacement and production costs.

[0028] As a further embodiment of this utility model, the slide plate 54 is provided with an arc-shaped positioning block 52, and the fork 2 is provided with a side cross block 23 that abuts against the arc-shaped positioning block 52.

[0029] Specifically, the shift fork 2 is equipped with a side cross block 23 to improve the overall stability and firmness of the shift fork 2. The side cross block 23 is arc-shaped and fits into the arc-shaped positioning block 52. When the shift fork 2 is placed on the clamping member 5, the side cross block 23 fits snugly against the arc-shaped positioning block 52, improving the positioning accuracy of the shift fork 2, thereby enhancing the quality and efficiency of the assembly of the cam driven wheel 25 and the ball head seat 21. As a further embodiment of this utility model, the shift fork 2 is provided with a second mounting hole 24, the press-fit unit 3 includes a pad 36, a fixing frame 31 and a first hydraulic cylinder 33 disposed on the fixing frame 31, the output end of the first hydraulic cylinder 33 is provided with a press-fit head 35, the press-fit head 35 is engaged with a ball head seat 21 that engages with the second mounting hole 24, and the fixing frame 31 is provided with a pad 36 located directly below the press-fit head 35.

[0030] Specifically, after the cam driven wheel 25 is assembled to the shift fork 2, both second cylinders 41 are in the output clamping state. Then, the first cylinder 33 operates, causing the pressing head 35 to slide downwards along the axis towards the second mounting hole 24 until the ball head seat 21 is pressed into the second mounting hole 24. The pad 36 serves to elevate the ball head 2 during the pressing process, reducing the possibility of the shift fork 2 tilting and affecting assembly accuracy. Figure 2 As shown, the pressing unit 3 on the left is used for pressing, and the pressing unit on the right is used for pressing.

[0031] As a further embodiment of this utility model, a shim 36 is provided on the pad 36, and a second sensor 37 that cooperates with the pad 36 is provided on the fixing frame 31.

[0032] Specifically, the relative height of the shim column 361 on the pad 36 can be adjusted to elevate the shift fork 2 during the pressing process of the second mounting hole 24, thus preventing uneven force on the ball head seat 21 caused by tilting at one end of the shift fork 2 during pressing. At the same time, multiple shim columns 361 are provided on the pad 36. When switching between different shift forks 2, the pad 36 can be rotated to determine the rotation angle of the pad 36 through the second sensor 37. There are two second sensors 37, and their model is BES-M08MH1-PSC20B-S04G (brand is Balluff). There are also two sets of shim columns 361, which correspond one-to-one with the second sensors 37. Thus, the height of the shim column 361 can be adjusted from the beginning to adapt to different shift forks 2, and the switching can be quickly performed through the second sensor 37. Therefore, the pressing process of the new shift fork 2 can be performed without removing parts.

[0033] As a further embodiment of this utility model, a base 34 is slidably disposed on the fixing frame 31, the first oil cylinder 33 is fixed on the base 34, and an adjusting rod 32 that engages with the base 34 is disposed on the fixing frame 31. One end of the adjusting rod 32 is provided with a thread, which engages with the base 34, while a handwheel is provided at the other end, so as to facilitate the adjustment of the position of the base 34 by rotating the adjusting rod 32.

[0034] Specifically, a guide rail is provided on the fixed frame 31, which restricts the sliding direction of the base 34. When changing different types of shift forks 2, the handwheel at the end of the adjusting rod 32 can be rotated, so that the base 34 slides on the guide rail under the action of the thread, thereby controlling the relative position of the hydraulic cylinder pressing head 35 to ensure that the pressing head 35 and the second mounting hole 24 are kept on the same axis, thereby improving the applicability of the pressing mechanism. A guide block 341 that cooperates with the first hydraulic cylinder 33 is provided on one side of the base 34, thereby improving the guiding of the hydraulic cylinder 33.

[0035] As a further embodiment provided in this utility model, a first sensor 12 is provided on the base plate 1, and the first sensor 12 cooperates with the transmission unit 4.

[0036] Specifically, the model of the first sensor 12 is BES-M08MH1-PSC20B-S04G (brand: Balluff). The first sensor 12 is mounted on the base plate 1, with the detection head facing the concave slider 42, as shown below. Figure 3 As shown, when the second oil cylinder 41 outputs to the concave slider 42, the sliding position of the concave slider 42 is detected by the first sensor 12 to ensure that the slide plate 54 does not slide beyond the stroke of the guide rod 11, and at the same time ensures the assembly position and accuracy of the cam driven wheel 25 and the shift fork 2.

[0037] The assembly process of this practical press-fitting mechanism accessory onto the shift fork 2 is as follows: Step 1: First, attach the two ball head seats 21 to the end of the press-fit head 35 at the output end of the first oil cylinder 33, and then attach the two cam driven wheels 25 and the shims to the contour block 63 of the positioning part 6 in a synchronized manner. Step 2: Then place the shift fork 2 on the slide plate 54 and make it fit against the arc-shaped positioning block 52, then turn on the switch on the control box 72 to start the pressing process; Step 3: The two first cylinders 51 operate to clamp the shift fork 2 above the positioning component 6 to achieve rapid positioning; Step 4: The second hydraulic cylinder 41 operates to push the slide plate 54 onto the base plate 1 via the concave slider 42, thereby pre-pressing the shift fork 2 and the cam driven wheel 25. After the pre-pressing sensor receives the signal, it controls the second hydraulic cylinder 41 to stop and remain stationary. The second cylinder 61 retracts to drive the contour block 63 away from the cam driven wheel 25. Then the second hydraulic cylinder 41 operates again to complete the secondary pressing, pressing the pressing tail 252 of the cam driven wheel 25 into the shift fork 2. Subsequently, the second hydraulic cylinder 41 retracts to pre-press the cam driven wheel 25 at the other end. After the pre-pressing sensor receives the signal, the second hydraulic cylinder 41 stops and remains stationary. The second cylinder 61 under the cam driven wheel 25 retracts to separate the contour block 63 from the cam driven wheel 25. The second hydraulic cylinder 41 retracts again to completely press the cam driven wheel 25 into the shift fork 2. Step 5: After the cam driven wheel 25 is pressed in, the slide plate 54 is moved to the initial position by the second oil cylinder 41, that is, the second wheel mounting hole of the shift fork 2 is kept on the same axis as the shim column 361 of the pad 36; Step 6: Figure 2 The pressing unit 3 on the left side operates to press the ball head seat 21 on the pressing head 35 into the second mounting hole 24 through the first oil cylinder 33, and then the pressing unit 3 on the right side presses the ball head seat 21 simultaneously. Step 7: The first hydraulic cylinder 33, the first air cylinder 51, and the second air cylinder 61 are reset to prepare for the next press-fitting operation.

[0038] The above-mentioned practical technical solution provides a solution that is significantly different from existing technologies, addressing the problem that existing technical solutions are too simplistic. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be elaborated further.

[0039] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A fork fitting press-fit mechanism, comprising a fork (2) and a first mounting hole (22) formed on the fork (2), characterized in that, Also includes: A base plate (1) is provided with a positioning component (6), and a contour block (63) is provided on the positioning component (6). A contour groove is provided on the contour block (63), and a cam driven wheel (25) is engaged in the contour groove. Clamping member (5), the clamping member (5) is slidably disposed on the base plate (1), the clamping member (5) clamps and fixes the shift fork (2) so that the first mounting hole (22) and the cam driven wheel (25) are kept on the same axis; The transmission unit (4) is disposed on the base plate (1) and cooperates with the clamping member (5). The transmission unit (4) drives the clamping member (5) to slide on the base plate (1) to control the shift fork (2) to press against the cam driven wheel (25). Pressing unit (3) is disposed on the side of the base plate (1), and the pressing unit (3) includes a pad (36) abutting against the lower end face of the shift fork (2).

2. A fork assembly press-in mechanism according to claim 1, wherein The clamping member (5) includes a sliding plate (54) and a first cylinder (51) disposed on the sliding plate. The output end of the first cylinder (51) is provided with a push rod (53) for clamping the shift fork (2). The transmission unit (4) includes a second oil cylinder (41) and a concave slider (42) disposed at the output end of the second oil cylinder (41), the concave slider (42) abutting against the slide plate (54); Guide rods (11) are symmetrically arranged on the base plate (1), and the slide plate (54) slides on the guide rods (11).

3. A fork assembly press-in mechanism according to claim 2, wherein The concave slider (42) is provided with a square groove (43) and a stepped groove (44), which are both matched with the slide plate (54).

4. A fork assembly press-in mechanism according to claim 1, wherein The positioning component (6) includes a second cylinder (61), a support frame (62), and a contour block (63) symmetrically slidably disposed on the support frame (62). The second cylinder (61) is disposed on the support frame (62), and its output end engages with the contour block (63). A fixing block (64) is provided on the base plate (1). The fixing block (64) is located between the two contour blocks (63). The cam driven wheel (25) abuts against one side of the fixing block (64) and engages with the contour block (63).

5. A fork assembly press-in mechanism according to claim 4, wherein The contour block (63) is provided with a first arc groove (631) and a second arc groove (632), while the fixed block (64) is provided with a support block (641). The cam driven wheel (25) includes a protruding head (251) and a pressing tail (252). The protruding head (251) abuts against the end face of the support block (641) and is engaged in the second arc groove (632). The pressing tail (252) is engaged in the second arc groove (632).

6. A fork assembly press-in mechanism according to claim 2, wherein The slide (54) is provided with an arc-shaped positioning block (52), and the fork (2) is provided with a side cross block (23) that abuts against the arc-shaped positioning block (52).

7. A fork assembly press-in mechanism according to claim 1, wherein The fork (2) is provided with a second mounting hole (24); The pressing unit (3) includes a pad (36), a fixing frame (31) and a first hydraulic cylinder (33) disposed on the fixing frame (31). A pressing head (35) is disposed on the output end of the first hydraulic cylinder (33), and a ball head seat (21) that engages with the second mounting hole (24) is engaged on the pressing head (35). The mounting bracket (31) is provided with a pad (36) located directly below the pressing head (35).

8. A fork assembly press-in mechanism according to claim 7, wherein The pad (36) is provided with a shim column (361), and the fixing frame (31) is provided with a second sensor (37) that cooperates with the pad (36).

9. A fork assembly press-in mechanism according to claim 7, wherein A base (34) is slidably mounted on the fixed frame (31), the first oil cylinder (33) is fixed on the base (34), and an adjusting rod (32) that engages with the base (34) is mounted on the fixed frame (31).

10. A fork assembly press-in mechanism according to claim 1, wherein A first sensor (12) is provided on the base plate (1), and the first sensor (12) cooperates with the transmission unit (4).

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