Multifunctional cylinder body clamp

Abstract

The multifunctional cylinder body clamp comprises a clamp support (1), the clamp support (1) is connected with a robot, a first clamping mechanism (2) and a second clamping mechanism (3) are arranged on the clamp support (1), and a positioning mechanism (4) is arranged at the bottom of the clamp support (1); the positioning mechanism (4) is matched with a pin hole in the top face of a cylinder body in an inserted mode, and the first clamping mechanism (2) and the second clamping mechanism (3) are inserted into the cylinder body through the cylinder hole and abut against a crankcase blank face. The cylinder body grabbing device can grab different cylinder bodies, and is simple in structure, convenient to operate and low in input cost.

Description

Technical Field

[0001] The present invention relates to a fixture, in particular to a multi-functional cylinder block fixture. Background Art

[0002] In the field of automobile manufacturing, automation is essential. On the one hand, automation can improve the efficiency of the production line and effectively ensure the quality of product production. On the other hand, product development needs to meet the needs of different consumers. Products are often diversified and updated quickly, which requires a certain degree of flexibility in the production line to be able to meet the production of different products. Therefore, it is particularly important to design a simple and reliable fixture for loading materials on automated equipment such as robots.

[0003] Currently, robots are used for loading and unloading. The cylinder block fixture clamps the top and bottom surfaces of the cylinder block or the intake and exhaust side bosses on the top surface. Currently, the cylinder block fixtures are dedicated, and different cylinder block fixtures cannot be used interchangeably. Therefore, a large number of cylinder block fixtures need to be designed, and fixture quick-change joints are used to switch between fixtures.

[0004] Replacing different fixtures for different models of cylinder blocks requires a large investment. Different fixture racks need to be set up, which increases the floor area of the production line. At the same time, it may result in an insufficient area covered by the robot. Fixture switching affects production efficiency. Frequent fixture replacement also requires an increase in labor input and higher maintenance requirements for the equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-functional cylinder block fixture to solve the technical problems in the prior art. It can meet the grasping of different cylinder blocks, and has a simple structure, convenient operation, and low input cost.

[0006] The present invention provides a multi-functional cylinder block fixture, including a fixture bracket. The fixture bracket is connected to a robot. A first clamping mechanism and a second clamping mechanism are arranged on the fixture bracket. A positioning mechanism is provided at the bottom of the fixture bracket. The positioning mechanism is inserted and matched with the pin holes on the top surface of the cylinder block. The first clamping mechanism and the second clamping mechanism are respectively inserted into the cylinder block through the cylinder holes and abutted against the rough surface of the crankcase.

[0007] In the aforementioned multi-functional cylinder block fixture, preferably, the fixture bracket includes a robot connection flange, a connecting frame, and a mounting plate. The lower end of the connecting frame is fixedly connected to the middle of the mounting plate, and the upper end of the connecting frame is fixedly connected to the robot connection flange.

[0008] In the foregoing multi-functional cylinder fixture, preferably, the first clamping mechanism and the second clamping mechanism have exactly the same structure. Both of them include a horizontal position adjustment component, a rotary cylinder, and a clamping cylinder. The rotary cylinder is installed on the mounting plate through the horizontal adjustment component. Two waist-shaped holes are formed in the mounting plate, and the two waist-shaped holes are located on both sides of the connecting frame. A connecting plate is fixedly provided at the top of the rotary cylinder, the clamping cylinder is fixedly provided on the connecting plate, and a rod is connected to the clamping cylinder. The rod penetrates through the connecting plate, the rotary cylinder, and the waist-shaped hole, and a clamping block is installed at the lower end of the rod.

[0009] In the foregoing multi-functional cylinder fixture, preferably, the horizontal position adjustment component includes a cylinder mounting bracket, a clamping mechanism displacement cylinder, a fixed bracket, a slide rail, and a slider. The slide rail is fixed on the mounting plate, and the slide rails are arranged on both sides of the waist-shaped hole. The slide rail is parallel to the long symmetry axis of the waist-shaped hole. The slider is arranged at the bottom of the fixed bracket, and the slider is installed on the slide rail and they are in sliding fit. The lower end of the rotary cylinder is fixed on the fixed bracket. The cylinder mounting bracket is arranged vertically and fixed on the side wall of the connecting frame. The clamping mechanism displacement cylinder is fixed on the cylinder mounting bracket, and the telescopic end of the clamping mechanism displacement cylinder is connected to the fixed bracket.

[0010] In the foregoing multi-functional cylinder fixture, preferably, the lower end of the rod has a threaded mounting post, the diameter of the threaded mounting post is smaller than the diameter of the rod, and the clamping block is installed on the threaded mounting post and fixed by a locking nut.

[0011] In the foregoing multi-functional cylinder fixture, preferably, the positioning mechanism includes a first positioning mechanism displacement component, a second positioning mechanism displacement component, and a positioning block. The positioning block is fixed at the bottom of the mounting plate. The first positioning mechanism displacement component is arranged close to one long side of the mounting plate, and the second positioning mechanism displacement component is arranged close to the other long side of the mounting plate.

[0012] In the aforementioned multi-functional cylinder block fixture, preferably, the first positioning mechanism displacement assembly and the second positioning mechanism displacement assembly have the same structure. Both include a push-pull cylinder, a support slider, a first positioning pin, a second positioning pin, a fixed block, a spring, a baffle, a cover plate, and a positioning pin limit block. The push-pull cylinder is fixed to the bottom of the mounting plate through a cylinder bracket. The fixed block is fixed to the bottom of the mounting plate. Two positioning pin mounting holes are provided on the fixed block. The first positioning pin and the second positioning pin are respectively inserted and connected to the two positioning pin mounting holes. Springs are provided in both of the two positioning pin mounting holes. A groove is provided on the bottom surface of the fixed block. The support slider is slidably mounted in the groove. One end of the support slider is connected to the piston rod of the push-pull cylinder through a connecting rod. The positioning pin limit block, the baffle, and the cover plate are fixed to the bottom of the fixed block through bolts.

[0013] In the aforementioned multi-functional cylinder block fixture, preferably, two retaining rings are fixedly provided on both the first positioning pin and the second positioning pin. The distance between the two retaining rings is equal to the thickness of the support slider. The support slider is provided with a special-shaped through hole that is large in the middle and small at both ends. The widths of both ends of the special-shaped through hole are equal to the diameters of the first positioning pin and the second positioning pin. The width of the middle of the special-shaped through hole is equal to the outer diameter of the retaining ring.

[0014] Compared with the prior art, the present invention realizes effective positioning with the cylinder block by inserting and mating the positioning mechanism with the pin holes on the top surface of the cylinder block, and clamps the rough surface of the crankcase through the cooperation of the first clamping mechanism and the second clamping mechanism, thereby realizing the grasping of the cylinder block. Then, the robot displaces the cylinder block. Under the cooperation of the first clamping mechanism and the second clamping mechanism, the grasping work of cylinder blocks of different models can be realized, achieving the automatic handling of cylinder blocks of different models, effectively improving the production efficiency, and reducing the investment in the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the axonometric view of the present invention;

[0016] Figure 2 is the top view of the present invention;

[0017] Figure 3 is the left side view of the present invention;

[0018] Figure 4 is the front view of the present invention;

[0019] Figure 5 is the axonometric view of the fixture bracket;

[0020] Figure 6 is the axonometric view of the first clamping mechanism;

[0021] Figure 7 is the bottom view of the present invention;

[0022] Figure 8 is the axonometric drawing of another angle of the present invention;

[0023] Figure 9 is the partial structural schematic diagram of the displacement assembly of the first positioning mechanism;

[0024] Figure 10 is the sectional view of the displacement assembly of the first positioning mechanism.

[0025] Explanation of reference numerals in the drawings: fixture bracket 1, first clamping mechanism 2, second clamping mechanism 3, positioning mechanism 4, robot connection flange 5, connecting frame 6, mounting plate 7, rotary cylinder 8, clamping cylinder 9, telescopic rod 10, waist-shaped hole 11, connecting plate 12, clamping block 13, cylinder mounting bracket 14, clamping mechanism displacement cylinder 15, fixed bracket 16, slide rail 17, slider 18, locking nut 19, first positioning mechanism displacement assembly 20, second positioning mechanism displacement assembly 21, positioning block 22, push-pull cylinder 23, support slider 24, first positioning pin 25, second positioning pin 26, fixed block 27, spring 28, baffle 29, cover plate 30, connecting rod 31, retaining ring 32, special-shaped through hole 33, air inspection block 34, positioning pin limit block 35, side baffle 36, lower through hole 37, upper through hole 38, sleeve 39, limit block 40, bushing 41. Detailed Description of the Invention

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0027] Embodiments of the present invention: As Figures 1 - 10 shown, a multi-functional cylinder fixture includes a fixture bracket 1, the fixture bracket 1 is connected to a robot, a first clamping mechanism 2 and a second clamping mechanism 3 are arranged on the fixture bracket 1, and a positioning mechanism 4 is arranged at the bottom of the fixture bracket 1; the positioning mechanism 4 is inserted and matched with the pin hole on the top surface of the cylinder, and the first clamping mechanism 2 and the second clamping mechanism 3 are respectively inserted into the cylinder through the cylinder hole and abutted against the rough surface of the crankcase.

[0028] Specifically, the fixture bracket 1 includes a robot connection flange 5, a connecting frame 6 and a mounting plate 7. The lower end of the connecting frame 6 is fixedly connected to the middle of the mounting plate 7, and the upper end of the connecting frame 6 is fixedly connected to the robot connection flange 5.

[0029] The robot connection flange 5 is of a disc-shaped structure, and a circle of mounting holes are provided on the robot connection flange 5. A bolt assembly is used to pass through the mounting holes to fixedly connect the robot connection flange 5 with the robot. The robot is an existing product and can be directly purchased. The robot is used to control the multi-functional cylinder fixture to grasp or release the cylinder. After grasping the cylinder, the position of the cylinder can be changed through the robot to achieve the automatic handling of the cylinder. The specific structure and working principle of the robot are both prior arts and do not fall within the protection scope of the present invention, and will not be elaborated in this embodiment.

[0030] The mounting plate 7 is of a rectangular flat plate structure, and the mounting plate 7 is used to fix the first clamping mechanism 2, the second clamping mechanism 3 and the positioning mechanism 4. Side baffles 36 are fixedly provided on the two long sides of the mounting plate 7. The side baffles 36 can play a role in protecting the lower ends of the first clamping mechanism 2 and the second clamping mechanism 3 to prevent bumping.

[0031] Two waist-shaped holes 11 are provided on the mounting plate 7, and the two waist-shaped holes 11 are located on both sides of the connecting frame 6. In order to improve the versatility of the present invention, the positions of the first clamping mechanism 2 and the second clamping mechanism 3 in the present invention are adjustable. Therefore, two waist-shaped holes 11 need to be designed to ensure that the first clamping mechanism 2 and the second clamping mechanism 3 will not be blocked when moving. By adjusting the positions of the first clamping mechanism 2 and the second clamping mechanism 3, the present invention can be applied to the clamping of different models of cylinders, improving the versatility.

[0032] A lower through hole 37 is provided at the center position of the mounting plate 7. The inside of the connecting frame 6 is of a hollow structure, and both the upper end and the lower end of the connecting frame 6 are of an open structure. An upper through hole 38 is provided at the center position of the robot connection flange 5. Wires, air pipes, etc. can sequentially pass through the upper through hole 38, the inside of the connecting frame 6, and the lower through hole 37 and extend to the bottom of the mounting plate 7 and be connected to the relevant structures at the bottom of the mounting plate 7 to provide electric energy and compressed gas.

[0033] Furthermore, the first clamping mechanism 2 and the second clamping mechanism 3 have exactly the same structure. Both of them include a horizontal position adjustment component, a rotary cylinder 8 and a clamping cylinder 9. The rotary cylinder 8 is installed on the mounting plate 7 through the horizontal adjustment component. A connecting plate 12 is fixedly provided at the top of the rotary cylinder 8. The clamping cylinder 9 is fixedly provided on the connecting plate 12, and a rod 10 is connected to the clamping cylinder 9. The rod 10 passes through the connecting plate 12, the rotary cylinder 8 and the waist-shaped hole 11. The lower end of the rod 10 has a threaded mounting post, and the diameter of the threaded mounting post is smaller than the diameter of the rod 10. In this way, a limiting boss is formed at the connection position between the two. The clamping block 13 is installed on the threaded mounting post and fixed by a locking nut 19.

[0034] In order to ensure that the rod 10 can move up and down and rotate smoothly, an oil-free bushing and a sleeve 39 are fixedly provided on the mounting plate 7. The rod 10 can not only slide up and down in the sleeve 39, but also rotate in the sleeve 39.

[0035] The horizontal position adjusting assembly is used to adjust the position of the rod 10, so as to change the distance between the rod 10 on the first clamping mechanism 2 and the rod 10 on the second clamping mechanism 3, so as to be applicable to cylinder blocks of different models.

[0036] The rotary cylinder 8 and the clamping cylinder 9 are both commercially available products and can be directly purchased. The clamping cylinder 9 is used to adjust the position of the rod 10 in the vertical direction, and the rotary cylinder 8 is used to drive the rod 10 to rotate, and the angle of the clamping block 13 is adjusted by the rotation of the rod 10.

[0037] Furthermore, the horizontal position adjusting assembly includes a cylinder mounting bracket 14, a clamping mechanism displacement cylinder 15, a fixed bracket 16, a slide rail 17 and a slider 18. The slide rail 17 is fixed on the mounting plate 7. Slide rails 17 are arranged on both sides of the waist-shaped hole 11. The slide rail 17 is parallel to the long axis of symmetry of the waist-shaped hole 11 and is parallel to the long side of the mounting plate 7. The bottom of the fixed bracket 16 is provided with a slider 18. The slider 18 is installed on the slide rail 17 and the two are in sliding fit. The lower end of the rotary cylinder 8 is fixed on the fixed bracket 16. The cylinder mounting bracket 14 is arranged vertically and is fixed on the side wall of the connecting frame 6. The clamping mechanism displacement cylinder 15 is fixed on the cylinder mounting bracket 14, and the piston rod of the clamping mechanism displacement cylinder 15 is connected to the fixed bracket 16.

[0038] It should be noted that the slider 18 can move smoothly on the slide rail 17 and will not disengage from the slide rail 17 in the vertical direction. Through the cooperation of the slider 18 and the slide rail 17, the smooth displacement of the first clamping mechanism 2 and the second clamping mechanism 3 can be ensured.

[0039] When displacement is required, the piston rod of the clamping mechanism displacement cylinder 15 drives the fixed bracket 16 to move. Through the sliding fit of the slider 18 on the slide rail 17, the fixed bracket 16 can move smoothly. When moving, the rotary cylinder 8 and the clamping cylinder 9 thereon move synchronously, so as to change the position of the rod 10.

[0040] In order to prevent the slider 18 from disengaging from the end of the slide rail 17 far away from the clamping mechanism displacement cylinder 15, it is preferably provided with a limit block 40 on the wide side of the mounting plate 7. The limit block 40 can block the fixed bracket 16. On the one hand, it can make the fixed bracket 16 accurately positioned, and on the other hand, it can prevent the fixed bracket 16 from moving excessively.

[0041] Furthermore, the positioning mechanism 4 includes a first positioning mechanism displacement assembly 20, a second positioning mechanism displacement assembly 21 and a positioning block 22. The positioning block 22 is fixed at the bottom of the mounting plate 7. The first positioning mechanism displacement assembly 20 is arranged close to one of the long sides of the mounting plate 7, and the second positioning mechanism displacement assembly 21 is arranged close to the other long side of the mounting plate 7.

[0042] It should be noted that the number of positioning blocks 22 is multiple, and the positioning blocks 22 have different shapes. The shapes and positions of the positioning blocks 22 are selected and set according to actual requirements. Please refer to Figure 7 , a cylindrical positioning block 22 is respectively arranged on a set of diagonals of the mounting plate 7, a cuboid-shaped positioning block 22 is arranged at the center position of the bottom surface of the mounting plate 7, and a strip-shaped positioning block 22 is respectively arranged at the edges of the two short sides of the bottom surface of the mounting plate 7. In order to ensure that the positioning block 22 is closely attached to the top surface of the cylinder block, two air inspection blocks 34 are also provided in this embodiment. These two air inspection blocks 34 are used in cooperation with the two strip-shaped positioning blocks 22. When the positioning block 22 is closely attached to the top surface of the cylinder block, the positioning block 22 is deformed under pressure so as to completely block the air outlet end of the air inspection block 34. An air pressure sensor is provided in the air inspection block 34. Since the air outlet end of the air inspection block 34 is completely blocked, the air pressure value in the air inspection block 34 will rise to a preset value. The robot can judge that the positioning block 22 is closely attached to the top surface of the cylinder block at this time by obtaining this pressure signal. If the positioning block 22 is not closely attached to the top surface of the cylinder block, the positioning block 22 cannot be connected to the air outlet end of the air inspection block 34, or cannot completely block the air inspection block 34, and the gas pressure in the air inspection block 34 cannot reach the preset value. The robot can judge that the positioning block 22 is not completely closely attached to the top surface of the cylinder block at this time by obtaining this pressure signal.

[0043] Furthermore, the structures of the first positioning mechanism displacement assembly 20 and the second positioning mechanism displacement assembly 21 are the same. Both of them include a push-pull cylinder 23, a support slider 24, a first positioning pin 25, a second positioning pin 26, a fixed block 27, a spring 28, a baffle 29, a cover plate 30 and a positioning pin limit block 35. The push-pull cylinder 23 is fixed to the bottom of the mounting plate 7 through a cylinder bracket 27. The fixed block 27 is fixed to the bottom of the mounting plate 7. Two positioning pin mounting holes are provided on the fixed block 27. The first positioning pin 25 and the second positioning pin 26 are respectively inserted and connected to the two positioning pin mounting holes. Springs 28 are provided in both of the two positioning pin mounting holes. A groove is provided on the bottom surface of the fixed block 27. The support slider 24 is slidably mounted in the groove. One end of the support slider 24 is connected to the piston rod of the push-pull cylinder 23 through a connecting rod 31. The positioning pin limit block 35, the baffle 29 and the cover plate 30 are fixed to the bottom of the fixed block 27 by bolts. In order to ensure that the first positioning pin 25 and the second positioning pin 26 can move smoothly, two bushings 41 are provided in the positioning pin mounting holes of the positioning pin limit block 35. It should be noted that two holes for the first positioning pin 25 and the second positioning pin 26 to pass through are provided on both the baffle 29 and the cover plate 30.

[0044] Two retaining rings 32 are fixedly provided on both the first positioning pin 25 and the second positioning pin 26. The distance between the two retaining rings 32 is equal to the thickness of the support slider 24. An irregular through hole 33 that is large in the middle and small at both ends is formed on the support slider 24. The widths at both ends of the irregular through hole 33 are equal to the diameters of the first positioning pin 25 and the second positioning pin 26, and the width in the middle of the irregular through hole 33 is equal to the outer diameter of the retaining ring 32.

[0045] The positioning pin limiting block 35 is installed on the fixed block 27 to limit the vertical position of the support slider 24, so that the support slider 24 can only move horizontally in the groove on the bottom surface of the fixed block 27. The diameters of the two bushings 41 on the positioning pin limiting block 35 are smaller than the outer diameter of the retaining ring 32. Therefore, the retaining ring 32 cannot continue to move after contacting the top surface of the positioning pin limiting block 35. Therefore, the positioning pin limiting block 35 can also play a role in limiting the maximum downward movement position of the first positioning pin 25 and the second positioning pin 26.

[0046] It should be noted that the first positioning mechanism displacement assembly 20 and the second positioning mechanism displacement assembly 21 have the same structure, and their working principles are exactly the same, but the arrangement positions of the first positioning pin 25 and the second positioning pin 26 on them are slightly different.

[0047] When the first positioning mechanism displacement assembly 20 and the second positioning mechanism displacement assembly 21 are working, only one positioning pin works on them, and the other positioning pin does not work. By changing the working state of the positioning pin, cylinders of different models can be positioned.

[0048] The working principle of the present invention: During work, the working states of the rotary cylinder 8, the clamping cylinder 9, the clamping mechanism displacement cylinder 15, the push-pull cylinder 23 and the air inspection block 34 are all controlled by the robot. After the robot obtains the specific model of the cylinder to be grasped, it first adjusts the states of the first positioning mechanism displacement assembly 20 and the second positioning mechanism displacement assembly 21. When the piston rod of the push-pull cylinder 23 extends, the support slider 24 moves in a direction away from the push-pull cylinder 23. One end of the irregular through hole 33 close to the push-pull cylinder 23 contacts the second positioning pin 26. At this time, the retaining ring 32 on the second positioning pin 26 cannot pass through the irregular through hole 33 and is supported by the support slider 24. At the same time, the first positioning pin 25 is in the area where the width of the irregular through hole is larger. When the first positioning pin 25 contacts the top surface of the cylinder block, it moves into the positioning pin mounting hole on the fixed block 27 and simultaneously compresses the spring 28. Since the second positioning pin 26 is supported by the support slider 24, the second positioning pin 26 is inserted into the positioning hole in the cylinder block.

[0049] When it is necessary to insert the first positioning pin 25 into the positioning hole on the cylinder block, the push-pull cylinder 23 is controlled to contract, and the support slider 24 moves towards the push-pull cylinder 23. One end of the special-shaped through hole 33 far from the push-pull cylinder 23 contacts the first positioning pin 25. At this time, the retaining ring 32 on the first positioning pin 25 cannot pass through the special-shaped through hole 33 and is supported by the support slider 24. At the same time, the second positioning pin 26 is in the area with a larger width of the special-shaped through hole. When the second positioning pin 26 contacts the top surface of the cylinder block, it moves into the positioning pin mounting hole on the fixed block 27 and simultaneously compresses the spring 28. Since the first positioning pin 25 is supported by the support slider 24, the first positioning pin 25 does not generate axial movement and can be smoothly inserted into the positioning hole in the cylinder block.

[0050] After adjusting the states of the first positioning mechanism displacement assembly 20 and the second positioning mechanism displacement assembly 21, the positions of the first clamping mechanism 2 and the second clamping mechanism 3 are adjusted according to the cylinder block model, so that the rods 10 on the first clamping mechanism 2 and the second clamping mechanism 3 can be accurately inserted into the cylinder holes of the cylinder block.

[0051] When displacement is required, the piston rod of the clamping mechanism displacement cylinder 15 drives the fixed bracket 16 to move. Through the sliding fit of the slider 18 on the slide rail 17, the fixed bracket 16 can move smoothly. When moving, it drives the rotary cylinder 8 and the clamping cylinder 9 thereon to move synchronously, thereby changing the position of the rod 10.

[0052] Taking a four-cylinder cylinder block as an example, the robot connects the present invention with the cylinder block. The rod 10 on the first clamping mechanism 2 is inserted into the first cylinder hole of the cylinder block, and the rod 10 on the second clamping mechanism 3 is inserted into the fourth cylinder hole of the cylinder block. Since the rod 10 is eccentric in the cylinder hole, there will be no interference during the insertion of the rod 10 into the cylinder hole. After the connection is in place, first use the air inspection block 34 to detect whether each positioning block 22 is in close contact with the top surface of the cylinder block. If it is in close contact, control the rotary cylinder 8 to work, so that the rod 10 rotates 90°, and then control the clamping cylinder 9 to contract, so that the clamping block 13 fits with the rough surface of the crankcase of the cylinder block to complete the clamping of the cylinder block. Then the robot transports the cylinder block to the preset position. The release of the cylinder block is the reverse process of grasping and will not be elaborated here.

[0053] The invention can meet the positioning and clamping of cylinder blocks of different types and different platforms, facilitate the automatic handling of different cylinder blocks, effectively improve the production efficiency, and reduce the investment in the production line. The invention has a simple structure, is easy to operate, is safe, environmentally friendly, and reliable in use, and has high popularization significance.

[0054] The structure, features and effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or equivalent embodiments modified to equivalent changes, should still be within the protection scope of the present invention as long as they do not exceed the spirit covered by the specification and the drawings.

Claims

1. A multifunctional cylinder clamp, comprising a clamp bracket (1), characterized in that: The clamp bracket (1) is connected to the robot, and a first clamping mechanism (2) and a second clamping mechanism (3) are provided on the clamp bracket (1). A positioning mechanism (4) is provided at the bottom of the clamp bracket (1); the positioning mechanism (4) is plug-fitted into a pin hole on the top surface of the cylinder body, and the first clamping mechanism (2) and the second clamping mechanism (3) are respectively inserted into the cylinder body through the cylinder hole and abut against the crankcase blank surface.

2. The multifunctional cylinder clamp according to claim 1, characterized in that: The fixture bracket (1) comprises a robot connecting flange (5), a connecting frame (6) and a mounting plate (7), wherein the lower end of the connecting frame (6) is fixedly connected to the middle of the mounting plate (7), and the upper end of the connecting frame (6) is fixedly connected to the robot connecting flange (5).

3. The multifunctional cylinder clamp according to claim 2, characterized in that: The first clamping mechanism (2) and the second clamping mechanism (3) are completely identical in structure, and both comprise a horizontal position adjustment component, a rotating cylinder (8) and a clamping cylinder (9); the rotating cylinder (8) is mounted on the mounting plate (7) through the horizontal adjustment component; the mounting plate (7) is provided with two waist-shaped holes (11); the two waist-shaped holes (11) are located on both sides of the connecting frame (6); a connecting plate (12) is fixedly provided on the top of the rotating cylinder (8); the clamping cylinder (9) is fixedly provided on the connecting plate (12); and a rod (10) is connected to the clamping cylinder (9); the rod (10) passes through the connecting plate (12), the rotating cylinder (8) and the waist-shaped holes (11); and a clamping block (13) is installed at the lower end of the rod (10).

4. The multifunctional cylinder clamp according to claim 3, characterized in that: The horizontal position adjustment component comprises a cylinder mounting bracket (14), a clamping mechanism displacement cylinder (15), a fixed bracket (16), a slide rail (17) and a slider (18); the slide rail (17) is fixed on the mounting plate (7); the slide rails (17) are arranged on both sides of the waist-shaped hole (11); the slide rails (17) are parallel to the long symmetry axis of the waist-shaped hole (11); the slider (18) is arranged at the bottom of the fixed bracket (16); the slider (18) is mounted on the slide rail (17) and the two slide together; the lower end of the rotating cylinder (8) is fixed on the fixed bracket (16); the cylinder mounting bracket (14) is arranged vertically and fixed on the side wall of the connecting frame (6); the clamping mechanism displacement cylinder (15) is fixed on the cylinder mounting bracket (14); and the telescopic end of the clamping mechanism displacement cylinder (15) is connected to the fixed bracket (16).

5. The multifunctional cylinder clamp according to claim 4, characterized in that: The lower end of the rod (10) has a threaded mounting column, the diameter of the threaded mounting column is smaller than the diameter of the rod (10), and the clamping block (13) is mounted on the threaded mounting column and fixed by a locking nut (19).

6. The multifunctional cylinder clamp according to any one of claims 1 to 5, characterized in that: The positioning mechanism (4) comprises a first positioning mechanism displacement component (20), a second positioning mechanism displacement component (21) and a positioning block (22); the positioning block (22) is fixed to the bottom of the mounting plate (7); the first positioning mechanism displacement component (20) is arranged close to one of the long sides of the mounting plate (7); and the second positioning mechanism displacement component (21) is arranged close to the other long side of the mounting plate (7).

7. The multifunctional cylinder clamp according to claim 6, characterized in that: The first positioning mechanism displacement assembly (20) and the second positioning mechanism displacement assembly (21) have the same structure, and both comprise a push-pull cylinder (23), a support slider (24), a first positioning pin (25), a second positioning pin (26), a fixing block (27), a spring (28), a baffle (29), a cover plate (30), and a positioning pin limiting block (35); the push-pull cylinder (23) is fixed to the bottom of the mounting plate (7) via a cylinder bracket (27); the fixing block (27) is fixed to the bottom of the mounting plate (7); and two positioning holes are provided on the fixing block (27). The first locating pin (25) and the second locating pin (26) are respectively plug-connected with the two locating pin mounting holes, and the two locating pin mounting holes are each provided with a spring (28). A groove is provided on the bottom surface of the fixing block (27), and the supporting slider (24) is slidably installed in the groove. One end of the supporting slider (24) is connected to the piston rod of the push-pull cylinder (23) through a connecting rod (31). The locating pin limit block (35), the baffle plate (29) and the cover plate (30) are fixed to the bottom of the fixing block (27) by bolts.

8. The multifunctional cylinder clamp according to claim 7, characterized in that: Two retaining rings (32) are fixedly disposed on the first positioning pin (25) and the second positioning pin (26), the spacing between the two retaining rings (32) being equal to the thickness of the supporting slider (24), and a special-shaped through hole (33) which is larger in the middle and smaller at both ends is provided on the supporting slider (24), the widths of both ends of the special-shaped through hole (33) being equal to the diameters of the first positioning pin (25) and the second positioning pin (26), and the width in the middle of the special-shaped through hole (33) being equal to the outer diameter of the retaining ring (32).

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