Guiding type drilling positioning tool for shifting fork machining

Abstract

The invention relates to the field of automobile part machining, in particular to a guiding type drilling positioning tool for shifting fork machining. Comprising a tool table and a lower positioning column, a bottom plate and an upper positioning column are arranged at the lower end of the lower positioning column, the upper positioning column can move in the axial direction, the downward pressing assembly comprises a downward pressing plate and two side pressing shafts, a through hole is formed in the upper positioning column in the radial direction of the upper positioning column, and a guide hole coaxial with the through hole is formed in each side pressing shaft in the axial direction of the side pressing shaft. A guide channel is formed between the through hole and the guide hole, and a guide structure is arranged in the side pressing shaft close to the drill rod. Circumferential positioning of the shifting fork shaft sleeve is achieved through the upper positioning column and the lower positioning column, axial limiting is achieved in combination with clamping of the lower pressing plate and the bottom plate, the side pressing shaft abuts against the shaft sleeve in the radial direction, stable clamping is ensured, meanwhile, a formed guide channel is combined with a guide structure, high-precision radial constraint is provided during drilling, deflection of a drill bit is effectively restrained, and the drilling efficiency is improved. And the hole site precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile parts processing, in particular to a guiding type drilling positioning tool for shift fork processing. BACKGROUND

[0002] In the manufacturing process of shift fork parts, it is often necessary to accurately drill pin holes in the radial direction at the shaft sleeve part to realize the connection and cooperation with the operating shaft or other parts.

[0003] Since the hole is located on the outer circumference of the cylindrical shaft sleeve, and the radial position, angle and perpendicularity of the hole are required to be high, traditional manual drilling has problems such as unstable positioning reference, easy deflection of the drill bit, poor consistency of repeated clamping, etc., especially in batch production, it is difficult to ensure the position accuracy and processing efficiency of the hole system.

[0004] Therefore, there is currently a need for a guiding type drilling positioning tool for shift fork processing to improve drilling accuracy, stabilize processing quality and improve production efficiency. SUMMARY

[0005] In view of the problems existing in the prior art, a guiding type drilling positioning tool for shift fork processing is provided, which realizes the circumferential positioning of the shift fork shaft sleeve through the upper positioning column and the lower positioning column, realizes the axial positioning by clamping the lower pressing plate and the bottom plate, and ensures stable clamping by radially pressing the shaft sleeve with the side pressing shaft. At the same time, the guiding channel formed in combination with the guiding structure provides high-precision radial constraint during drilling, effectively inhibits the deflection of the drill bit, and improves the hole position accuracy.

[0006] To solve the problems in the prior art, the present application provides a guiding type drilling positioning tool for shift fork processing for guiding the radial drilling of the shaft sleeve of the shift fork by the drill rod, which comprises a tool table, a lower positioning column fixedly arranged on the tool table, a bottom plate provided at the lower end of the lower positioning column for supporting the shaft sleeve, an upper positioning column coaxially arranged above the lower positioning column and movable in the axial direction, the outer diameter of the upper positioning column and the lower positioning column being matched with the inner diameter of the shaft sleeve, a lower pressing assembly installed on the upper positioning column and comprising a lower pressing plate and two side pressing shafts, the lower pressing plate being fixedly arranged on the lower half of the upper positioning column and forming axial positioning with the bottom plate, the two side pressing shafts being symmetrically arranged on both sides of the lower pressing plate and forming radial positioning with the upper positioning column and the lower positioning column, the two side pressing shafts being relatively movable in the radial direction of the upper positioning column, a guide sleeve being provided on both sides of the pressing plate corresponding to each side pressing shaft, a through hole being formed in the radial direction of the upper positioning column, a guide hole being formed in the axial direction of each side pressing shaft coaxially with the through hole, a guiding channel being formed between the through hole and the guide hole for the drill rod to pass through, the inner diameter of the guiding channel being larger than the diameter of the hole to be drilled, and a guiding structure being provided on the side pressing shaft close to the drill rod.

[0007] Preferably, the guide structure comprises a plurality of rolling balls evenly distributed along the circumference of the guide hole of the corresponding side pressing shaft, and the inner wall of the guide hole is provided with a groove for embedding the rolling balls, and all the rolling balls jointly enclose a guide gap for the drill rod to pass through.

[0008] Preferably, the end of each side pressing shaft abutting against the side wall of the shaft sleeve is provided with a rubber layer, and a notch is formed in the rubber layer along the radial direction.

[0009] Preferably, the upper end of the upper positioning column vertically extends a pressing rod, a support is fixedly arranged on the tooling table, a pressing cylinder is arranged on the support and axially arranged along the pressing rod, the output shaft of the pressing cylinder is fixedly connected with the pressing rod, and a bidirectional driving assembly is arranged on the pressing rod and used for driving the two side pressing shafts to synchronously move relative to each other.

[0010] Preferably, the bidirectional driving assembly comprises a sliding sleeve slidingly arranged on the pressing rod and connecting rods symmetrically arranged on both sides of the sliding sleeve, one end of the connecting rod is hingedly connected with the sliding sleeve, the other end of the connecting rod is hingedly connected with the corresponding side pressing shaft, and when the sliding sleeve moves upward along the pressing rod, the side pressing shaft gradually moves inward under the driving of the corresponding connecting rod.

[0011] Preferably, the lower half of the pressing rod is provided with an external thread, a threaded sleeve is threadedly connected with the external thread, the upper end of the threaded sleeve abuts against the lower end of the sliding sleeve, and a hand-holding handle is arranged on the outer periphery of the threaded sleeve.

[0012] Preferably, the tooling table is provided with two support seats for supporting the fork legs of the shift fork, a sliding rail is arranged between the two support seats, a sliding block is slidingly arranged on the sliding rail and corresponding to each support seat, a push plate is arranged on each sliding block and used for abutting against the fork leg from the inside to the outside, and a straight pushing cylinder is arranged on each support seat and used for driving the push plate to move outward.

[0013] Preferably, the upper half of the pressing rod and above the sliding sleeve are provided with a fixing sleeve, a first compression spring is fixedly connected between the fixing sleeve and the sliding sleeve, and a second compression spring is fixedly connected between the side pressing shaft and the guide sleeve, and when the side pressing shaft moves inward, the first compression spring and the second compression spring are both in a compressed state.

[0014] The beneficial effects of the present application compared with the prior art are as follows: The present application realizes the circumferential positioning of the shift fork sleeve through the lower positioning column and the upper positioning column, realizes the axial positioning of the shift fork sleeve through the lower pressing plate and the bottom plate, ensures the stable clamping of the shift fork through the radial clamping of the side pressing shaft and the auxiliary support of the push plate on the fork leg, and at the same time, the coaxial guide channel formed by the through hole of the upper positioning column and the guide hole of the side pressing shaft, combined with the built-in rolling ball guide structure, provides low friction and high precision radial constraint in the drill rod feeding process, effectively suppresses the drill bit deflection, improves the position accuracy and perpendicularity of the radial drilling, and meets the batch high-quality production requirements of the shift fork. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective structural schematic view of a guide type drilling positioning tool for shift fork machining.

[0016] Figure 2 is a partial perspective structural sectional view of a guide type drilling positioning tool for shift fork machining.

[0017] Figure 3 is a partial plane sectional view of a guide type drilling positioning tool for shift fork machining.

[0018] Figure 4 is a perspective structural schematic view of a pressing assembly of a guide type drilling positioning tool for shift fork machining.

[0019] Figure 5 is a partial perspective structural sectional view of a pressing assembly of a guide type drilling positioning tool for shift fork machining.

[0020] Figure 6 is a partial plane sectional view of a pressing assembly of a guide type drilling positioning tool for shift fork machining.

[0021] Figure 7 is an enlarged schematic view of A of the guide type drilling positioning tool for shift fork machining. Figure 3

[0022] Figure 8 is a perspective structural schematic view of a shift fork.

[0023] In the figure, the reference numerals are: 1, drill rod; 2, shift fork; 21, shaft sleeve; 22, fork leg; 3, tooling table; 31, support; 32, support seat; 33, slide rail; 331, sliding block; 332, push plate; 333, straight push cylinder; 4, lower positioning column; 41, bottom plate; 5, upper positioning column; 51, through hole; 6, pressing plate; 61, pressing rod; 611, pressing cylinder; 62, bidirectional driving assembly; 621, sliding sleeve; 622, connecting rod; 63, fixed sleeve; 631, first compression spring; 632, second compression spring; 64, threaded sleeve; 641, hand screw handle; 7, side pressing shaft; 71, guide hole; 711, ball bearing; 72, rubber layer; 721, notch; 73, guide sleeve. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means and achieved specific purposes and functions of the present application, the present application is described in further detail below in combination with the drawings and specific embodiments.

[0025] Reference is made to Figures 1-5 and Figure 8 ​As shown, a kind of guiding drilling positioning tool for shift fork machining is used for guiding the radial drilling of the shaft sleeve 21 of shift fork 2 by drill rod 1, including tool table 3, lower positioning column 4, fixedly arranged on tool table 3, the lower end of the lower positioning column 4 is provided with bottom plate 41 for supporting shaft sleeve 21, upper positioning column 5, located directly above lower positioning column 4, and coaxially arranged with it, the upper positioning column 5 can move along the axial direction, the outer diameter of the upper positioning column 5 and the lower positioning column 4 is matched with the inner diameter of the shaft sleeve 21, the lower pressing assembly is installed on the upper positioning column 5, including a lower pressing plate 6 and two side pressing shafts 7, the lower pressing plate 6 is fixedly arranged on the lower half of the upper positioning column 5, and the bottom plate 41 is formed between the axial limit, two side pressing shafts 7 are symmetrically arranged on both sides of the lower pressing plate 6, and the radial limit is formed between the upper positioning column 5 and the lower positioning column 4, two side pressing shafts 7 can move relatively along the radial direction of the upper positioning column 5, the guide sleeve 73 is provided on both sides of the pressing plate corresponding to each side pressing shaft 7, the upper positioning column 5 is provided with through hole 51 along the radial direction thereof, each side pressing shaft 7 is provided with guide hole 71 coaxial with the through hole 51 along the axial direction thereof, the through hole 51 and the guide hole 71 form a guide channel for the drill rod 1 to pass through, the inner diameter of the guide channel is greater than the diameter of the hole to be drilled, and the side pressing shaft 7 close to the drill rod 1 is provided with a guide structure.

[0026] When radial drilling is carried out using the guiding drilling positioning tool for shift fork machining, first, the shift fork 2 to be machined is placed on the tool table 3, so that the shaft sleeve 21 part is aligned and sleeved on the lower positioning column 4 fixed on the tool table 3, the bottom of the shaft sleeve 21 is supported by the bottom plate 41 at the lower end of the lower positioning column 4, to realize preliminary axial support and coaxial positioning.

[0027] Subsequently, the lower pressing assembly descends, the upper positioning column 5 and the lower pressing plate 6 approach the lower positioning column 4 along the axial direction, the upper positioning column 5 is inserted into the upper end of the shaft sleeve 21, and the lower positioning column 4 cooperates to form coaxial positioning of the upper and lower ends of the shaft sleeve 21, and the lower pressing plate 6 abuts against the upper end of the shaft sleeve 21, so as to complete the accurate positioning of the shift fork 2 in the axial and circumferential directions.

[0028] On this basis, the two side pressing shafts 7 move inward along the constraint direction of the guide sleeve 73 synchronously until the end of the side pressing shaft 7 tightly abuts against the outer circumferential surface of the shaft sleeve 21, to form reliable radial clamping. At this time, the through hole 51 on the upper positioning column 5 and the guide hole 71 on the two side pressing shafts 7 are accurately coaxially aligned to form a through guide channel.

[0029] Since the inner diameter of the guide channel is greater than the diameter of the hole to be drilled, the drill rod 1 can pass through smoothly and implement radial drilling on the outer wall of the shaft sleeve 21. Since the guide structure is arranged in the side pressing shaft 7 close to the drill rod 1, stable radial guidance is provided for the drill rod 1 during the feeding process, the deviation is effectively inhibited, the position accuracy of the drilled hole is ensured, and the machining quality of the radial drilling of the shaft sleeve 21 of the shift fork 2 is improved.

[0030] Referring to Figures 5-7 As shown, the guide structure includes a plurality of balls 711 evenly distributed along the circumference of the guide hole 71 of the corresponding side pressing shaft 7, and the inner wall of the guide hole 71 is provided with a groove for embedding the balls 711, and all the balls 711 together enclose a guide gap for the drill rod 1 to pass through.

[0031] During the process of the drill rod 1 penetrating into the guide hole 71 of the side pressing shaft 7, it first passes through the guide gap enclosed by the plurality of balls 711. These balls 711 are evenly distributed along the inner circumferential wall of the guide hole 71 and are respectively embedded in the annular grooves pre-opened on the inner wall of the guide hole 71, so that they can freely rotate in the grooves but not fall off.

[0032] When the drill rod 1 enters the guide gap, its outer circumferential surface is in contact with each ball 711 and produces a rolling fit, and the balls 711 rotate around their own axes under the push of the drill rod 1, thereby reducing the frictional resistance while limiting the radial deviation of the drill rod 1. The radial position is constrained to achieve high-stability drilling guide effect.

[0033] Referring to Figures 4-7 As shown, the end of each side pressing shaft 7 abutting against the side wall of the shaft sleeve 21 is provided with a rubber layer 72, and the rubber layer 72 is provided with a notch 721 penetrating through in the radial direction.

[0034] The rubber layer 72 protrudes radially from the end of the side pressing shaft 7 to form an anti-falling flange surrounding the outer periphery of the side pressing shaft 7, and the outer diameter of the anti-falling flange is greater than the inner diameter of the guide sleeve 73, which is used to prevent the side pressing shaft 7 from falling out of the guide sleeve 73.

[0035] During the process of the side pressing shaft 7 moving inward to clamp the shaft sleeve 21 of the shift fork 2, the rubber layer 72 at the end thereof first contacts the outer circumferential surface of the shaft sleeve 21. The notches 721 penetrating through the rubber layer 72 in the radial direction facilitate the discharge of chips or cooling liquid.

[0036] Referring to Figures 2-5 As shown, the lower end of the upper positioning column 5 vertically extends a pressing rod 61, and a support 31 is fixedly arranged on the tool table 3, and a pressing cylinder 611 is installed on the support 31 and arranged in the axial direction of the pressing rod 61, the output shaft of the pressing cylinder 611 is fixedly connected with the pressing rod 61, and the pressing rod 61 is provided with a bidirectional driving assembly 62 for driving the two side pressing shafts 7 to move synchronously.

[0037] When the pressing cylinder 611 is started, its output shaft extends or retracts, driving the pressing rod 61 fixedly connected therewith to move up and down synchronously in the axial direction, thereby driving the entire upper positioning column 5 and the pressing assembly to ascend and descend. When the pressing plate is pressed against the shaft sleeve 21, the bidirectional driving assembly 62 arranged on the pressing rod 61 moves accordingly, driving the two side pressing shafts 7 to move synchronously towards or away from each other, thereby clamping or releasing the shaft sleeve 21 of the shift fork 2.

[0038] Referring to Figures 2-5 As shown, the bidirectional driving assembly 62 comprises a sliding sleeve 621 slidingly sleeved on the pressing rod 61 and connecting rods 622 symmetrically arranged on both sides of the sliding sleeve 621, one end of the connecting rod 622 being hinged to the sliding sleeve 621 and the other end being hinged to the corresponding side pressing shaft 7, when the sliding sleeve 621 moves upward along the pressing rod 61, the side pressing shaft 7 gradually moves inward under the drive of the corresponding connecting rod 622.

[0039] The upper half of the pressing rod 61 above the sliding sleeve 621 is provided with a fixing sleeve 63, the first compression spring 631 is fixedly connected between the fixing sleeve 63 and the sliding sleeve 621, and the second compression spring 632 is fixedly connected between the side pressing shaft 7 and the guide sleeve 73.

[0040] When the side pressing shaft 7 moves inward, the first compression spring 631 and the second compression spring 632 are both in the compressed state.

[0041] When the sliding sleeve 621 moves upward along the pressing rod 61, the two side pressing shafts 7 are driven to move inward synchronously by the pushing force of the connecting rods 622. At the same time, as the side pressing shaft 7 continuously moves inward, the first compression spring 631 is compressed due to the upward movement of the sliding sleeve 621, and the second compression spring 632 is synchronously compressed due to the inward movement of the side pressing shaft 7 relative to the guide sleeve 73, both groups of compression springs are in the energy storage state, providing reset elastic force for subsequent loosening action, buffering impact during clamping, keeping the clamping force stable, and providing a stable radial reference for subsequent drill rod 1 guiding.

[0042] Referring to Figures 2-5 As shown, the lower half of the pressing rod 61 is provided with external threads, and a threaded sleeve 64 is threadedly connected to the external threads, the upper end of the threaded sleeve 64 abutting against the lower end of the sliding sleeve 621, and the outer periphery of the threaded sleeve 64 is provided with a hand turning handle 641.

[0043] For the upward movement of the sliding sleeve 621 along the pressing rod 61, the threaded sleeve 64 is manually adjusted. When adjusting the clamping state, after the shaft sleeve 21 is pressed tightly on the bottom plate 41 by the pressing plate 6, the operator starts to manually adjust the movement of the sliding sleeve 621 to promote the shaft sleeve 21 to be clamped between the two side pressing shafts 7.

[0044] During manual operation, the operator rotates the hand turning handle 641 on the outer periphery of the threaded sleeve 64 to drive the threaded sleeve 64 to rotate around the pressing rod 61. Since the threaded sleeve 64 cooperates with the external threads on the lower half of the pressing rod 61, the threaded sleeve 64 moves axially upward along the pressing rod 61 during rotation, and the upper end gradually pushes against the lower end surface of the sliding sleeve 621.

[0045] As the threaded sleeve 64 continues to rotate upward, the sliding sleeve 621 is lifted to slide upward along the pressing rod 61, and then drives the two side pressing shafts 7 to fold inward through the connecting rods 622, thereby achieving clamping of the shift fork 2 shaft sleeve 21.

[0046] Referring to Figure 1 and Figure 2 As shown in the figure, the tooling table 3 is provided with two support seats 32 for supporting the prongs 22 of the shift fork 2, and a sliding rail 33 is arranged between the two support seats 32. A sliding block 331 is slidably arranged on the sliding rail 33 corresponding to each support seat 32. A push plate 332 for abutting against the prong 22 from the inside to the outside is arranged on each sliding block 331. A straight push cylinder 333 for driving the push plate 332 to move outward is arranged on each support seat 32.

[0047] When clamping the shift fork 2, first, the two prongs 22 of the shift fork 2 are respectively placed above the two support seats 32 on the tooling table 3. Then, the straight push cylinders 333 installed on the support seats 32 are synchronously started, and the output shafts thereof are retracted inward, pulling the corresponding sliding blocks 331 on the sliding rail 33 to move outward along the sliding rail 33.

[0048] Since the push plate 332 is arranged on each sliding block 331 and moves together with the sliding block 331, and exerts an outward pushing force on the inner wall of the prong 22 of the shift fork 2 from the inside, the prong 22 is stably abutted, ensuring that the shift fork 2 remains stable during the drilling process, preventing displacement due to vibration or cutting force, and providing a reliable support basis for subsequent high-precision drilling.

[0049] The lower positioning column 4 fixed to the tooling table 3 and the axially movable upper positioning column 5 are inserted into the inner hole of the shaft sleeve 21 of the shift fork 2, realizing coaxial fitting and circumferential positioning of the shaft sleeve 21. The bottom plate 41 at the bottom of the lower positioning column 4 and the lower pressing plate 6 at the lower end of the upper positioning column 5 clamp the end face of the shaft sleeve 21 from top to bottom, forming reliable axial positioning. At the same time, the two side pressing shafts 7 move inward synchronously under the action of the bidirectional driving assembly 62, and the end rubber layer 72 thereof abuts against the outer circumferential surface of the shaft sleeve 21, completing radial clamping, while the prong 22 is tightly supported on the support seat 32 from the inside to the outside by the push plate 332 on the sliding block 331, realizing overall rigid clamping.

[0050] On this basis, the radial through hole 51 of the upper positioning column 5 and the axial guide hole 71 of the two side pressing shafts 7 are accurately aligned, forming a through guide channel. The rolling ball 711 arranged in the side pressing shaft 7 close to the drill rod 1 forms a guide gap in rolling cooperation with the drill rod 1, dynamically constraining the radial position of the drill rod 1 during the drilling process, and inhibiting deflection and vibration, thereby ensuring the position accuracy, angle consistency and perpendicularity of the drilled radial hole, effectively meeting the processing requirements of high precision and high repeatability of the shift fork 2 in batch production.

[0051] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the protection scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A guiding type drilling positioning tool for fork machining, used for guiding the radial drilling of the shaft sleeve (21) of the fork (2) by the drill rod (1), characterized in that, The utility model provides a kind of drilling rig, including: Tooling table (3); Lower positioning column (4) is fixedly arranged on tooling table (3), the lower end of the lower positioning column (4) is provided with bottom plate (41) for supporting shaft sleeve (21); Upper positioning column (5) is located directly above lower positioning column (4), and it is coaxially arranged with it, and the upper positioning column (5) can move along the axial direction; The outer diameter of the upper positioning column (5) and the lower positioning column (4) is matched with the inner diameter of the shaft sleeve (21); Lower pressing assembly is installed on the upper positioning column (5), and it includes a lower pressing plate (6) and two side pressing shafts (7); The lower pressing plate (6) is fixedly arranged on the lower half of the upper positioning column (5), and forms axial limit between the bottom plate (41); Two side pressing shafts (7) are symmetrically arranged on both sides of the lower pressing plate (6), and form radial limit between the upper positioning column (5) and the lower positioning column (4); Two side pressing shafts (7) can move relatively along the radial direction of the upper positioning column (5), and the pressing plate is provided with a guide sleeve (73) corresponding to each side pressing shaft (7) on both sides thereof; The upper positioning column (5) is provided with a through hole (51) along the radial direction thereof, each side pressing shaft (7) is provided with a guide hole (71) coaxial with the through hole (51) along the axial direction thereof, and the through hole (51) and the guide hole (71) form a guide channel for the drill rod (1) to pass through; The inner diameter of the guide channel is greater than the diameter of the hole to be drilled, and the side pressing shaft (7) near the drill rod (1) is provided with a guide structure.

2. The guiding type drilling positioning tool for shift fork machining according to claim 1, characterized in that, The guide structure includes a plurality of balls (711) evenly distributed along the circumferential direction of the guide hole (71) of the corresponding side pressing shaft (7), the inner wall of the guide hole (71) is provided with a groove for embedding the balls (711), and all the balls (711) collectively form a guide gap for the drill rod (1) to pass through.

3. The guiding type drilling positioning tool for processing of shift fork according to claim 2, characterized in that, Each side pressing shaft (7) is provided with a rubber layer (72) at the end abutting against the side wall of the shaft sleeve (21), and the rubber layer (72) is provided with a notch (721) penetrating along the radial direction thereof.

4. The guiding type drilling positioning tool for processing shift fork according to claim 1, characterized in that, The upper end of the upper positioning column (5) extends vertically upwardly to form a lower pressing rod (61), the tooling table (3) is fixedly provided with a bracket (31), the bracket (31) is installed with a lower pressing cylinder (611) arranged along the axial direction of the lower pressing rod (61), the output shaft of the lower pressing cylinder (611) is fixedly connected with the lower pressing rod (61), and the lower pressing rod (61) is provided with a bidirectional driving assembly (62) for driving the two side pressing shafts (7) to move synchronously.

5. The guiding type drilling positioning tool for processing of shift fork according to claim 4, characterized in that, The bidirectional driving assembly (62) includes a sliding sleeve (621) slidably arranged on the lower pressing rod (61) and connecting rods (622) symmetrically arranged on both sides of the sliding sleeve (621), one end of the connecting rod (622) is hinged to the sliding sleeve (621), the other end is hinged to the corresponding side pressing shaft (7), and when the sliding sleeve (621) moves upwardly along the lower pressing rod (61), the side pressing shaft (7) gradually moves inwardly under the driving of the corresponding connecting rod (622).

6. The guiding type drilling positioning tool for processing shift fork according to claim 5, characterized in that, The lower half of the lower pressing rod (61) is provided with an external thread, and a threaded sleeve (64) is threadedly connected to the lower half, the upper end of the threaded sleeve (64) abuts against the lower end of the sliding sleeve (621), and the outer periphery of the threaded sleeve (64) is provided with a hand-tightening handle (641).

7. The guiding type drilling positioning tool for processing shift fork according to claim 1, characterized in that, The tooling table (3) is provided with two support seats (32) for supporting the fork legs (22) of the shift fork (2), and a slide rail (33) is arranged between the two support seats (32), and a sliding block (331) is arranged on the slide rail (33) corresponding to each support seat (32), and a push plate (332) for abutting against the fork leg (22) from inside to outside is arranged on each sliding block (331), and a straight push cylinder (333) for driving the push plate (332) to move outward is arranged on each support seat (32).

8. The guiding type drilling positioning tool for processing shift fork according to claim 5, characterized in that, The upper half of the lower pressing rod (61) and above the sliding sleeve (621) are provided with a fixed sleeve (63), and the fixed sleeve (63) and the sliding sleeve (621) are fixedly connected with a first compression spring (631), and the side pressing shaft (7) and the guide sleeve (73) are fixedly connected with a second compression spring (632), when the side pressing shaft (7) moves inward, the first compression spring (631) and the second compression spring (632) are in a compressed state.

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