Speed change fork clamp

Abstract

The utility model relates to the technical field of clamps, in particular to a speed change fork clamp which comprises a base, universal wheels are installed at the corners of the bottom of the base, the universal wheels are lockable universal wheels, a fixing column is installed at one end of the top of the base, a rotation limiting mechanism is installed at one end of the fixing column, and a clamping mechanism is installed at the other end of the fixing column. The rotating limiting mechanism comprises a rotating assembly, a mounting frame, an adjusting assembly, a clamping assembly and two sets of clamping plates, rubber pads are embedded in the opposite faces of the two sets of clamping plates, the rotating assembly is used for adjusting the grinding angle of a clamped workpiece, and the adjusting assembly is used for driving the clamping plates to clamp the workpiece; the clamping assembly is used for quickly disassembling and assembling the clamping plate; the shifting fork polishing device is simple in structure and convenient to operate, clamping plates of different shapes and sizes can be rapidly replaced to correspond to shifting forks of different models by pressing, buckling and pulling a worker, the angle orientation of the shifting forks can be flexibly adjusted to be matched with polishing operation after clamping, and the practicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a speed change fork clamp. Background Art

[0002] A shift fork is a component of a car's transmission, also known as a shift fork. Connected to the shift handle, it's located at the bottom of the handle. Shifting the intermediate shift wheel changes the input / output speed ratio. A shift fork on a machine tool is used for speed changes, primarily in the operating mechanism. It shifts two meshing gears apart and then shifts one of the gears, which slides on the shaft, to the other gear to achieve a different speed. This involves changing the position of the lathe's sliding gear to achieve speed changes, or controlling the engagement and disengagement of the clutch, thereby controlling lateral or longitudinal feed. Shift forks are widely used in transmissions, but after production, the fork and slot plate must be polished. During this polishing process, the fork must be limited. Because the fork's shape is irregular, it can easily wobble when clamped, which can also significantly affect the polishing process. This results in low precision and wastes significant manpower and financial resources.

[0003] In order to solve the above technical problems, the Chinese patent with announcement number CN216802873U in the prior art discloses an automatic clamp for a gearbox shift fork, including a base, the cylinder containing a cylinder body and a piston rod, the cylinder body is fixedly connected to the left side of the base, one end of the piston rod is slidably connected to the inner side wall of the cylinder body, the piston rod is arranged in the middle of the base, the right side of the base is fixedly connected to a fixed block, the right side of the fixed block is fixedly connected to two clamping frames, the other end of the piston rod is fixedly connected to a pneumatic clamp, the pneumatic clamp is provided with a shift fork at the end away from the piston rod, and the upper end surface of the base is fixedly connected to a fixed body.

[0004] Although the above-mentioned existing technical solution improves the stability during clamping, the shapes of forks of different sizes and models are different, and their clamping frames and pneumatic clamps are fixedly installed on the clamp body. It is difficult for staff to replace the clamping parts, and it is impossible to perform clamping processing on forks of different models and sizes. After clamping, it is difficult to change the angle direction of the fork according to the requirements of the grinding position, which affects the practicality of the device. Utility Model Content

[0005] The purpose of the present utility model is to provide a shift fork clamp to solve the problem that the shapes of shift forks of different sizes and models are different as proposed in the above-mentioned background technology, and the clamping frame and pneumatic clamping jaws are fixedly installed on the clamp body, making it difficult for staff to replace the clamping parts and unable to perform clamping processing on shift forks of different models and sizes. Moreover, after clamping, it is difficult to change the angle direction of the shift fork according to the requirements of the grinding position, thereby affecting the practicality of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A speed change fork clamp comprises a base, universal wheels are installed at the bottom corners of the base, the universal wheels are lockable universal wheels, a fixed column is installed at one end of the top of the base, a rotation limiting mechanism is installed at one end of the fixed column, the rotation limiting mechanism comprises a rotating assembly, a mounting frame, an adjustment assembly, a clamping assembly and two sets of clamps, the opposite surfaces of the two sets of clamps are embedded with rubber pads, the rotating assembly is used to adjust the grinding angle of the clamped workpiece, the adjustment assembly is used to drive the clamping plate to clamp the workpiece, and the clamping assembly is used to quickly disassemble and assemble the clamping plate.

[0008] As a preferred solution of the present invention, the rotating assembly includes a damping shaft rotatably connected to the inside of the fixed column, a rotating rod is installed at one end of the damping shaft, a docking plate is rotatably connected to the outside of the rotating rod, one side of the docking plate is fixedly connected to one side of the fixed column, and a reset groove is provided inside the docking plate on the outside of the rotating rod.

[0009] As a preferred solution of the present invention, a reset plate is slidably connected to the inner side of the reset groove, a first spring is installed between the two ends of one side of the reset plate and the inner wall of the reset groove, the reset plate is slidably connected to the rotating rod, a movable sleeve is installed on one side of the reset plate, the movable sleeve is slidably connected to the docking plate, and the movable sleeve is slidably connected to the rotating rod.

[0010] As a preferred solution of the present invention, multiple groups of positioning holes are arranged on one side of the docking plate, a positioning column is installed on the protruding end of the movable sleeve, the positioning column is slidably connected to the positioning hole, a limiting groove is opened on one side of the rotating rod inside the movable sleeve, a limiting block slidably connected to the limiting groove is installed on one side of the rotating rod, and a handle is installed on the other end of the movable sleeve.

[0011] As a preferred solution of the present invention, the adjustment assembly includes a mounting frame installed at the other end of the damping shaft, a fixing cylinder is installed on the inner side of the mounting frame, an adjustment groove is opened on one side of the fixing cylinder, a threaded rod is rotatably connected to the inner side of the adjustment groove, the threads at the two ends of the outer side of the threaded rod are opposite, and the two ends of the outer side of the threaded rod are threadedly connected to an adjustment seat, the adjustment seat and the adjustment groove are slidably connected, a motor is installed on one side of the outer wall of the mounting frame, and the driving end of the motor extends to the inner side of the adjustment groove and is fixedly connected to one end of the threaded rod.

[0012] As a preferred solution of the present invention, the clamping assembly includes a clamping slot opened at one end of the adjustment seat, one side of the splint is overlapped with one side of the adjustment seat, and a clamping block slidably connected to the clamping slot is installed on one side of the clamping slot. An abutment groove is opened inside the adjustment seat on one side of the clamping slot, the inner side of the abutment groove is connected with the inner side of the clamping slot, and an abutment plate is slidably connected to the inner side of the abutment groove. Two groups of second springs are arranged and installed between one side of the abutment plate and the inner wall of the abutment groove, and the abutting ends of the abutment plate and the clamping block are provided with inclined surfaces that fit each other.

[0013] As a preferred solution of the present invention, a pull rod is installed on one side of the abutment plate between the two groups of second springs, the pull rod is slidably connected to the adjustment seat, an operating groove is provided at the top of the adjustment seat, the pull rod extends to one end inside the operating groove and is rotatably connected to a pull ring, a hanging column is installed on the top of the adjustment seat on one side of the operating groove, and the side cross-section of the hanging column is L-shaped.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, a rotating component is used to adjust the grinding angle of the clamped workpiece, an adjusting component is used to drive the clamping plate to clamp the workpiece, and a clamping component is used to quickly disassemble and assemble the clamping plate. The structure is simple and the operation is convenient. The staff can quickly replace clamps of different shapes and sizes corresponding to different models of forks by pressing and pulling. The angle direction of the fork can also be flexibly adjusted after clamping to cooperate with the grinding operation, which further improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the partial three-dimensional structure of the adjustment component and the clamping component of the utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the clamping assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the rotating assembly of the utility model;

[0020] Figure 5 This is a partial cross-sectional structural diagram of the rotating assembly of the present invention.

[0021] In the figure: 1. Base; 2. Fixed column; 3. Mounting frame; 4. Clamp; 5. Damping shaft; 6. Rotating rod; 7. Docking plate; 8. Reset plate; 9. First spring; 10. Movable sleeve; 11. Positioning column; 12. Limit block; 13. Block; 14. Abutment plate; 15. Fixed cylinder; 16. Threaded rod; 17. Adjustment seat; 18. Second spring; 19. Pull ring; 20. Hanging column. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0025] The cam 2 is a kind of camshaft that is fixed on the top of base 1, and the cam 2 is fixed on the top of base 1. The cam 2 is fixed on the top of base 1. The cam 2 is fixed on the top of base 1. The cam 2 is fixed on the top of base 1.

[0026] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, the clamping assembly includes a clamping slot opened at one end of the adjustment seat 17, one side of the splint 4 is overlapped with one side of the adjustment seat 17, and a clamping block 13 is installed on one side of the splint 4 and is slidably connected to the clamping slot. An abutment groove is opened on one side of the clamping slot inside the adjustment seat 17, and the inner side of the abutment groove is connected to the inner side of the clamping slot. The inner side of the abutment groove is slidably connected with an abutment plate 14. First, move one side of the splint 4 closer to one side of the adjustment seat 17, let the clamping block 13 enter the inner side of the clamping slot, and perform preliminary clamping on the splint 4.

[0027] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, two groups of second springs 18 are arranged and installed between one side of the abutment plate 14 and the inner wall of the abutment groove, and the abutting ends of the abutment plate 14 and the block 13 are provided with inclined surfaces that fit each other. Then, the block 13 is gradually pushed into the inner side of the groove, and the protruding end of the block 13 contacts the protruding end of the abutment plate 14. The two groups of inclined surfaces force the abutment plate 14 to retract into the inner side of the abutment groove, and the two groups of second springs 18 are squeezed until the block 13 is completely pushed into the inner side of the groove, and one end of the abutment plate 14 is no longer blocked. The two groups of second springs 18 drive the abutment plate 14 to pop out to one side of the protruding end of the block 13 to abut, thereby completing the assembly of the splint 4.

[0028] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, a pull rod is installed on one side of the abutment plate 14 between the two groups of second springs 18, and the pull rod is slidably connected to the adjustment seat 17. An operating slot is provided at the top of the adjustment seat 17, and the pull rod extends to one end inside the operating slot and is rotatably connected to a pull ring 19. A hanging column 20 is installed on the top of the adjustment seat 17 on one side of the operating slot, and the side cross-section of the hanging column 20 is L-shaped. Furthermore, when removing the splint 4 for replacement, it is only necessary to buckle the pull ring 19 to drive the pull rod to slide inside the adjustment seat 17, so that the abutment plate 14 retracts to the inside of the abutment slot again, squeezing the two groups of second springs 18. After the protruding end of the abutment plate 14 is away from the protruding end of the block 13, the pull ring 19 can be deflected at a certain angle to hang it obliquely on the protruding end of the hanging column 20. At this time, the splint 4 can be directly pulled out for replacement, and the pull ring 19 can be removed after removal to reset it.

[0029] In this embodiment, if Figure 1 、 Figure 4 and Figure 5As shown, the rotating assembly includes a damping shaft 5 rotatably connected to the inside of the fixed column 2, one end of the damping shaft 5 is installed with a rotating rod 6, the outer side of the rotating rod 6 is rotatably connected to a docking plate 7, one side of the docking plate 7 is fixedly connected to one side of the fixed column 2, the interior of the docking plate 7 is located on the outer side of the rotating rod 6 and a reset groove is provided, the inner side of the reset groove is slidably connected with a reset plate 8, a first spring 9 is installed between the two ends of one side of the reset plate 8 and the inner wall of the reset groove, the reset plate 8 is slidably connected to the rotating rod 6, a movable sleeve 10 is installed on one side of the reset plate 8, the movable sleeve 10 is slidably connected to the docking plate 7, the movable sleeve 10 is slidably connected to the rotating rod 6, a plurality of groups of positioning holes are arranged on one side of the docking plate 7, the protruding end of the movable sleeve 10 is installed with a positioning column 11, the positioning column 11 and the positioning The hole is a sliding connection, and a limiting groove is provided on one side of the rotating rod 6 inside the movable sleeve 10. A limiting block 12 is installed on one side of the rotating rod 6 to be slidably connected to the limiting groove. A handle is installed on the other end of the movable sleeve 10. Furthermore, holding the handle at one end of the movable sleeve 10 can drive it to move. When the movable sleeve 10 moves, it drives the reset plate 8 to compress the two groups of first springs 9 to retract, so that the positioning column 11 is disengaged from the inside of the positioning hole, and then cooperates with the limiting groove and the limiting block 12 and the damping shaft 5 to drive the positioning column 11 and the splint 4 to rotate. After the speed fork clamped between the two groups of splints 4 is rotated to the specified grinding angle, the handle can be loosened back, so that the two groups of first springs 9 rebound and drive the positioning column 11 to enter the positioning hole in the corresponding position, thereby positioning the adjusted position.

[0030] In this embodiment, if Figure 1 and Figure 2 As shown, the adjustment assembly includes a mounting frame 3 installed on the other end of the damping shaft 5, and a fixing cylinder 15 is installed on the inner side of the mounting frame 3. An adjusting slot is provided on one side of the fixing cylinder 15, and a threaded rod 16 is rotatably connected to the inner side of the adjusting slot. The threads at the two ends of the outer side of the threaded rod 16 are opposite, and the two ends of the outer side of the threaded rod 16 are threadedly connected to an adjustment seat 17. The adjustment seat 17 is slidingly connected to the adjusting slot, and a motor is installed on one side of the outer wall of the mounting frame 3. The driving end of the motor extends to the inner side of the adjusting slot and is fixedly connected to one end of the threaded rod 16. Furthermore, after placing the speed change fork between the rubber pads on the two sets of splints 4, starting the motor for forward or reverse rotation can drive the threaded rod 16 to rotate, and the two sets of adjusting seats 17 then perform opposite or reverse movement on the inner side of the adjusting slot. During the opposite movement, the rubber pad can fit the outer wall of the speed change fork to clamp it in position and wait for grinding.

[0031] The implementation principle of the speed change fork clamp of the present application is as follows: one side of the clamping plate 4 is moved closer to one side of the adjustment seat 17, the clamping block 13 is allowed to enter the inner side of the clamping groove, the clamping plate 4 is preliminarily clamped, and the clamping block 13 is gradually pushed into the inner side of the clamping groove. The protruding end of the clamping block 13 contacts the protruding end of the abutting plate 14, and the two sets of inclined surfaces are used to force the abutting plate 14 to retract into the inner side of the abutting groove, and the two sets of second springs 18 are squeezed until the clamping block 13 is completely pushed into the inner side of the clamping groove, and one end of the abutting plate 14 is pressed against the clamping block 13. No longer obstructed, the two sets of second springs 18 drive the abutment plate 14 to pop out to one side of the protruding end of the block 13 to abut, and then complete the assembly of the splint 4. When removing the splint 4 for replacement, it is only necessary to buckle the pull ring 19 to drive the pull rod to slide inside the adjustment seat 17, so that the abutment plate 14 retracts to the inside of the abutment groove again, squeezing the two sets of second springs 18. After the protruding end of the abutment plate 14 is away from the protruding end of the block 13, the pull ring 19 can be deflected at a certain angle to be hung obliquely on the hanging column. When the gear shift fork is clamped between the two sets of splints 4, the handle can be loosened back so that the two sets of first springs 9 rebound and drive the positioning post 11 into the positioning hole of the corresponding position to position the gear shift fork. After the gear shift fork is placed between the rubber pads on the two sets of splints 4, the motor can be started to rotate forward or reverse to drive the threaded rod 16 to rotate, and the two sets of adjusting seats 17 will then perform opposite or reverse movements inside the adjusting groove. During the opposite movement, the rubber pad can be fitted against the outer wall of the gear shift fork to clamp it in position, waiting for grinding.

[0032] The control method of the present invention is to control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. Moreover, the present invention is used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed change fork clamp, comprising a base (1), characterized in that: Universal wheels are installed at the bottom corners of the base (1), and the universal wheels are lockable universal wheels. A fixed column (2) is installed at one end of the top of the base (1), and a rotation limiting mechanism is installed at one end of the fixed column (2). The rotation limiting mechanism includes a rotating component, a mounting frame (3), an adjusting component, a clamping component and two groups of clamps (4). The opposite surfaces of the two groups of clamps (4) are embedded with rubber pads. The rotating component is used to adjust the grinding angle of the clamped workpiece, the adjusting component is used to drive the clamps (4) to clamp the workpiece, and the clamping component is used to quickly disassemble and assemble the clamps (4).

2. The shift fork clamp according to claim 1, characterized in that: The rotating assembly comprises a damping shaft (5) rotatably connected to the interior of the fixed column (2); a rotating rod (6) is mounted on one end of the damping shaft (5); a docking plate (7) is rotatably connected to the outer side of the rotating rod (6); one side of the docking plate (7) is fixedly connected to one side of the fixed column (2); and a reset groove is provided inside the docking plate (7) on the outer side of the rotating rod (6).

3. The shift fork clamp according to claim 2, characterized in that: A reset plate (8) is slidably connected to the inner side of the reset groove, and a first spring (9) is installed between the two ends of one side of the reset plate (8) and the inner wall of the reset groove. The reset plate (8) is slidably connected to the rotating rod (6). A movable sleeve (10) is installed on one side of the reset plate (8), and the movable sleeve (10) is slidably connected to the docking plate (7). The movable sleeve (10) is slidably connected to the rotating rod (6).

4. The shift fork clamp according to claim 3, characterized in that: A plurality of positioning holes are arranged on one side of the docking plate (7), a positioning column (11) is installed on the protruding end of the movable sleeve (10), and the positioning column (11) is slidably connected to the positioning hole. A limiting groove is provided inside the movable sleeve (10) on one side of the rotating rod (6), and a limiting block (12) slidably connected to the limiting groove is installed on one side of the rotating rod (6), and a handle is installed on the other end of the movable sleeve (10).

5. The shift fork clamp according to claim 4, characterized in that: The adjustment assembly comprises a mounting frame (3) mounted on the other end of the damping shaft (5); a fixing cylinder (15) is mounted on the inner side of the mounting frame (3); an adjustment slot is provided on one side of the fixing cylinder (15); a threaded rod (16) is rotatably connected to the inner side of the adjustment slot; threads at both ends of the outer side of the threaded rod (16) are opposite; both ends of the outer side of the threaded rod (16) are threadedly connected to an adjustment seat (17); the adjustment seat (17) is slidably connected to the adjustment slot; a motor is mounted on one side of the outer wall of the mounting frame (3); a driving end of the motor extends to the inner side of the adjustment slot and is fixedly connected to one end of the threaded rod (16).

6. The shift fork clamp according to claim 5, characterized in that: The clamping assembly includes a clamping slot provided at one end of the adjustment seat (17), one side of the clamping plate (4) overlaps with one side of the adjustment seat (17), one side of the clamping plate (4) is installed with a clamping block (13) slidably connected to the clamping slot, an abutting slot is provided inside the adjustment seat (17) on one side of the clamping slot, the inner side of the abutting slot is communicated with the inner side of the clamping slot, an abutting plate (14) is slidably connected to the inner side of the abutting slot, two groups of second springs (18) are arranged and installed between one side of the abutting plate (14) and the inner wall of the abutting slot, and the abutting ends of the abutting plate (14) and the clamping block (13) are both provided with inclined surfaces that fit each other.

7. The shift fork clamp according to claim 6, characterized in that: A pull rod is installed on one side of the abutment plate (14) between the two groups of second springs (18), and the pull rod is slidably connected to the adjustment seat (17). An operating slot is provided at the top of the adjustment seat (17), and one end of the pull rod extending to the inner side of the operating slot is rotatably connected to a pull ring (19). A hanging column (20) is installed on the top of the adjustment seat (17) on one side of the operating slot, and the side section of the hanging column (20) is L-shaped.

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