Clamp sliding device

Abstract

The utility model discloses a clamp sliding device which is arranged on a clamp, a workpiece positioning mechanism is arranged on the clamp, the clamp sliding device comprises a sliding rail and a sliding table, the sliding rail is installed on the clamp and extends out of the clamp, the sliding table is connected to the sliding rail in a sliding mode, and a workpiece supporting piece is arranged on the sliding table. In the working process, the sliding table is moved out of the clamp along the sliding rail, a workpiece is placed on the workpiece supporting piece, then the sliding table is returned into the clamp along the sliding rail, the workpiece is firmly positioned on the clamp through the workpiece positioning mechanism, and subsequent machining procedures are conveniently executed. After machining is completed, the sliding table is still moved out of the clamp, and the workpiece is taken down. Due to the fact that the workpiece is assembled and disassembled outside the clamp instead of being assembled and disassembled in the clamp in the prior art, the clamp has abundant operation and rotation space, interference and collision between the clamp and a clamping and positioning mechanism in the clamp can be avoided, and the workpiece is effectively prevented from being damaged.

Description

Technical Field

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

[0002] Some products have cavities with two ends connected. In order to facilitate the smooth assembly process of such products, the products are loaded and unloaded in a horizontal position, that is, the open end of the cavity is facing the horizontal direction. Accordingly, a vertical fixture is used to clamp the upper and lower positions of the product, and the product is also loaded and unloaded on the fixture in a horizontal manner. Due to the limited space in the fixture and the large number of clamping and positioning mechanisms distributed, the processed surface of the product is easily bumped during loading and unloading, resulting in the product being scrapped. The utility model patent with publication number CN220446280U discloses a fixture for processing a three-in-one dual-motor housing for new energy vehicles. The use of this fixture can improve production efficiency and product quality. However, in this utility model, the workpiece is loaded and unloaded in a vertical position, and the fixture is clamped at the lateral position of the workpiece, which does not meet the assembly process requirements of some products. Utility Model Content

[0003] The existing horizontal loading clamp has limited space inside the clamp and has many clamping and positioning mechanisms, which makes it easy for the workpiece to collide with the processed surface during loading and unloading, causing damage to the workpiece. To overcome this defect, the utility model provides a clamp sliding device, which can facilitate the loading and unloading of the workpiece and reduce the collision of the workpiece processing surface.

[0004] The technical solution of the utility model is: a fixture sliding device is arranged on the fixture, and a workpiece positioning mechanism is provided on the fixture, including a slide rail and a slide table, the slide rail is installed on the fixture and extends outside the fixture, the slide table is slidably connected to the slide rail, and a workpiece support is provided on the slide table. During operation, the slide table is moved along the slide rail to the outside of the fixture, the workpiece is placed on the workpiece support, and then the slide table is returned to the fixture along the slide rail, and the workpiece is firmly positioned on the fixture through the workpiece positioning mechanism, so as to facilitate the execution of subsequent processing procedures. After the processing is completed, the slide table is still moved outside the fixture to remove the workpiece. Since the workpiece is loaded and unloaded outside the fixture, rather than loaded and unloaded inside the fixture as in the current method, there is ample operation and maneuvering space, which can avoid interference and collision with the clamping and positioning mechanism in the fixture, and effectively prevent damage to the workpiece.

[0005] As a preferred method, the device further comprises a lifting hydraulic cylinder, which is fixed on the fixture, a bracket is connected to the piston rod of the lifting hydraulic cylinder, and a slide rail is fixed on the bracket. The slide table can change the height as a whole. When entering and exiting the fixture, the slide table rises to distance the workpiece from the clamping and positioning mechanism in the fixture, thereby more effectively avoiding collision.

[0006] Preferably, the bracket is provided with a plurality of linear bearings, and the fixture is provided with guide rods corresponding to and connected with the linear bearings one by one. The guide rods cooperate with the linear bearings to accurately define the lifting path of the bracket and the slide.

[0007] Preferably, a buffer mechanism corresponding to the starting point of the slide is provided on the bracket. When the slide is pushed back into the fixture, it is difficult for the operator to observe the exact position of the slide in the fixture and control the pushing force. The buffer mechanism can provide a buffering and shock-absorbing effect for the reset slide, preventing the slide from being impacted due to sudden stop at the end of the slide rail, causing the workpiece placed on the workpiece support and not yet positioned to shift, deviate or even fall.

[0008] Preferably, the workpiece support comprises a support plate for providing a plane support and a support rod for compensating for the difference in the support position. Some types of workpieces are irregular in shape, and when placed according to processing requirements, some parts are low and some parts are suspended. The plane on the support plate contacts the bottom surface of the workpiece, and the support rod is relatively slender, which can not only support the higher part of the workpiece, thereby compensating for the difference in the support position, but also better insert or embed into a concave or recessed part with a smaller space or a larger difference in height from the surrounding area, so as to better ensure the balance of the workpiece placement.

[0009] Preferably, the workpiece positioning mechanism comprises a plurality of pin-driven hydraulic cylinders, and a positioning pin is provided on the piston rod of the pin-driven hydraulic cylinder. A small-area positioning point or positioning hole is usually provided on the workpiece, and the positioning pin driven by the pin-driven hydraulic cylinder pushes against the positioning point or inserts into the positioning hole, thereby achieving positioning.

[0010] Preferably, the workpiece positioning mechanism comprises a plurality of block-driven hydraulic cylinders, and a flip block is provided at the output end of the block-driven hydraulic cylinder. Some parts of the workpiece are not suitable for setting positioning holes. In this case, the flip block driven by the block-driven hydraulic cylinder can be pressed against the edge of the workpiece to achieve workpiece positioning.

[0011] Preferably, the fixture includes a top plate and a bottom plate, and the top plate and the bottom plate are fixedly connected by a column. Since the workpiece enters and exits the fixture horizontally, there is no need to leave a workpiece movement channel at the top of the fixture, and a clamping and positioning mechanism is also required at the top of the fixture. Therefore, the top plate can be provided to improve the structural strength of the fixture and provide an installation platform for related mechanisms.

[0012] The beneficial effects of the utility model are:

[0013] Convenient for loading and unloading of workpieces and improving work efficiency. When using the utility model, the workpieces are loaded and unloaded outside the fixture, which is different from the current loading and unloading method inside the fixture. Therefore, there is ample operation and maneuvering space, and the workpieces can be loaded vertically with the help of a sling, which greatly facilitates the loading and unloading of workpieces and improves work efficiency.

[0014] Effectively prevent the workpiece from being damaged. Since the workpiece is loaded and unloaded outside the fixture when using the utility model, interference and collision with the clamping and positioning mechanism in the fixture can be avoided, effectively preventing the workpiece from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 3 A structural schematic diagram of a clamp using the utility model;

[0018] Figure 4 The utility model is a schematic diagram of a use state of the clamp.

[0019] In the figure, 1-clamp, 2-slide rail, 3-slide table, 4-workpiece support, 5-lifting hydraulic cylinder, 6-bracket, 7-linear bearing, 8-guide rod, 9-top pin driving hydraulic cylinder, 10-locating pin, 11-block driving hydraulic cylinder, 12-flip block, 13-long groove, 14-short groove, 15-slider, 16-longitudinal groove, 17-bracket, 18-buffer, 19-connecting block, 20-casing. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the specific embodiments of the drawings.

[0021] Embodiment 1:

[0022] like Figures 1 to 4As shown, a fixture sliding device is arranged on a fixture 1. The fixture 1 includes a top plate, a bottom plate and a column. The two ends of the column are fixedly connected to the top plate and the bottom plate respectively, so that the fixture 1 forms a solid frame structure. A workpiece positioning mechanism is provided on the fixture 1. The fixture sliding device includes a slide rail 2, a slide table 3, a lifting hydraulic cylinder 5 and a bracket 6. The slide rail 2 is installed on the fixture 1 and extends outside the fixture 1. A slider 15 is fixed to the bottom of the slide table 3. The slider 15 slides with the slide rail 2 so that the slide table 3 is slidably connected to the slide rail 2. A workpiece support 4 is provided on the slide table 3. The lifting hydraulic cylinder 5 is fixedly installed on the bottom plate of the fixture 1 by screws, the bracket 6 is connected to the piston rod of the lifting hydraulic cylinder 5, and the slide rail 2 is fixedly installed on the bracket 6 by screws. The slide 3 is provided with two long grooves 13 and two short grooves 14. The long grooves 13 and the short grooves 14 extend along the length direction of the slide 3. The two long grooves 13 are parallel, and the two short grooves 14 are on the same straight line and parallel to the long grooves 13. The bracket 6 has two parallel longitudinal grooves 16. The middle of the two longitudinal grooves 16 is connected by a transverse operation, so that the longitudinal grooves 16 and the transverse grooves form an H shape. The longitudinal grooves 16 and the transverse grooves pass through the top and bottom surfaces of the bracket 6. The piston rod of the lifting hydraulic cylinder 5 passes through the transverse groove from bottom to top. The length and width of the cross-section of the cylinder body of the lifting hydraulic cylinder 5 are smaller than the width of the transverse groove, so that the middle and upper sections of the cylinder body of the lifting hydraulic cylinder 5 can be accommodated in the transverse groove. The end of the piston rod of the lifting hydraulic cylinder 5 is fixed with a "X"-shaped connecting block 19 by bolts, and the two ends of the connecting block 19 are fixed to the parts on both sides of the transverse groove on the bracket 6 by screws. A linear bearing 7 is provided at each of the four corners of the bracket 6 , and the linear bearing 7 passes through the top and bottom surfaces of the bracket 6 . A guide rod 8 is provided on the bottom plate of the fixture 1 , and the guide rod 8 corresponds to the linear bearing 7 one by one and is slidably connected in the linear bearing 7 .

[0023] The bracket 6 is also provided with a buffer mechanism, which corresponds to the starting point position of the slide 3. The buffer mechanism includes a bracket 17 and a buffer 18. The bracket 17 is fixedly mounted on the bottom plate of the fixture 1, and the buffer 18 is fixed on the bracket 17. The piston rod of the buffer 18 faces the slide 3. The workpiece support 4 includes a support plate that provides a plane support and a support rod that can compensate for the difference in the support position. The support plate is used to support the part of the workpiece that has a large area and can be placed stably, and the support rod is inserted or embedded in the suspended, concave and other parts of the workpiece with a small space or a large difference in height with the surrounding area, supporting the suspended higher parts of the workpiece, thereby compensating for the difference in the support position and better ensuring the balance of the workpiece placement. An upper positioning hydraulic cylinder is fixed on the top plate of the fixture 1, and the piston rod of the upper positioning hydraulic cylinder is connected to the upper positioning mechanism mounting plate. The workpiece positioning mechanism is installed on the upper positioning mechanism mounting plate, the bottom plate and the column of the fixture 1. The workpiece positioning mechanism includes twelve top pin driving hydraulic cylinders 9 and four block driving hydraulic cylinders 11. The piston rod of the top pin driving hydraulic cylinder 9 is provided with a positioning pin 10. The positioning pin 10 driven by the top pin driving hydraulic cylinder is used to support the positioning point on the workpiece. Four inclined top pin driving hydraulic cylinders 9 are installed at the bottom of the upper positioning mechanism mounting plate, two inclined top pin driving hydraulic cylinders 9 are installed on the column of the fixture 1, two inclined top pin driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1, and four vertical top pin driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1; the output end of the block driving hydraulic cylinder 11 is provided with a flip block 12, and the four block driving hydraulic cylinders 11 are located at the four corners of the bottom plate of the fixture 1. The lifting hydraulic cylinder 5, the upper positioning hydraulic cylinder, the top pin driving hydraulic cylinder 9 and the block driving hydraulic cylinder 11 are controlled by the operation panel.

[0024] The fixture sliding device is used on the fixture 1 of the engine assembly line, and the workpiece fixed on the fixture 1 is the housing 20. Before loading the workpiece, it is necessary to first control the expansion of the lifting hydraulic cylinder 5 through the operation panel, and the lifting hydraulic cylinder 5 pushes the bracket 6 to rise, and the slide 3 is moved to the outside of the fixture 1 along the slide rail 2 by manpower. After the slide 3 is emptied, the workpiece is placed on the workpiece support 4 of the slide 3, and then the slide 3 is pushed back into the fixture 1 along the slide rail. Then, the lifting hydraulic cylinder 5 and the upper positioning hydraulic cylinder are controlled to move through the operation panel in sequence, and the workpiece descends with the bracket 6, and the upper positioning mechanism mounting plate also descends subsequently, and then the top pin driving hydraulic cylinder 9 and the block driving hydraulic cylinder 11 are controlled to move, and the positioning pin 10 and the flip block 12 firmly position the workpiece on the fixture 1, so as to facilitate the subsequent internal assembly process of the housing 20. After all the processing is completed, the positioning is released according to the reverse operation of the above, the bracket 6 is raised again, the slide 3 is moved to the outside of the fixture 1, and the housing 20 with the internal assembly completed is removed, and the next operation cycle is continued.

[0025] Embodiment 2:

[0026] like Figure 1 , Figure 4As shown, a fixture sliding device is arranged on a fixture 1. The fixture 1 includes a top plate, a bottom plate and a column. The two ends of the column are fixedly connected to the top plate and the bottom plate respectively, so that the fixture 1 forms a firm frame structure. A workpiece positioning mechanism is arranged on the fixture 1. The fixture sliding device includes a slide rail 2, a slide table 3, a lifting hydraulic cylinder 5 and a bracket 6. The slide rail 2 is installed on the fixture 1 and extends outside the fixture 1. A slider 15 is fixed at the bottom of the slide table 3. The slider 15 slides with the slide rail 2 so that the slide table 3 is slidably connected to the slide rail 2. A workpiece support 4 is arranged on the slide table 3. The lifting hydraulic cylinder 5 is fixedly installed on the bottom plate of the fixture 1 by screws. A plug hole is arranged at the bottom of the bracket 6. The piston rod of the lifting hydraulic cylinder 5 is inserted into the bottom of the plug hole. A through hole is arranged on the top of the bracket 6 to reach the plug hole. A bolt is arranged in the through hole. The bolt is threadedly connected to the end face of the piston rod of the hydraulic cylinder 5 so that the bracket 6 is connected to the piston rod. The slide rail 2 is fixedly installed on the bracket 6 by screws. The slide 3 is provided with two long grooves 13 and two short grooves 14, both of which extend along the length direction of the slide 3, the two long grooves 13 are parallel, and the two short grooves 14 are on the same straight line and parallel to the long grooves 13. Six linear bearings 7 are provided at the four corners and sides of the bracket 6, and the linear bearings 7 penetrate the top and bottom surfaces of the bracket 6. A guide rod 8 is provided on the bottom plate of the fixture 1, and the guide rod 8 corresponds to the linear bearing 7 one by one and is slidably connected in the linear bearing 7.

[0027] The bracket 6 is also provided with a buffer mechanism, which corresponds to the starting point position of the slide 3. The buffer mechanism includes a bracket 17 and a buffer 18. The bracket 17 is fixedly mounted on the bottom plate of the fixture 1, and the buffer 18 is fixed on the bracket 17. The piston rod of the buffer 18 faces the slide 3. The workpiece support 4 includes a support plate that provides a plane support and a support rod that can compensate for the difference in the support position. The support plate is used to support the part of the workpiece that has a large area and can be placed stably, and the support rod is inserted or embedded in the suspended, concave and other parts of the workpiece with a small space or a large difference in height with the surrounding area, supporting the suspended higher parts of the workpiece, thereby compensating for the difference in the support position and better ensuring the balance of the workpiece placement. An upper positioning hydraulic cylinder is fixed on the top plate of the fixture 1, and the piston rod of the upper positioning hydraulic cylinder is connected to the upper positioning mechanism mounting plate. The workpiece positioning mechanism is installed on the upper positioning mechanism mounting plate, the bottom plate and the column of the fixture 1. The workpiece positioning mechanism includes fourteen top pin driving hydraulic cylinders 9 and six block driving hydraulic cylinders 11. The piston rod of the top pin driving hydraulic cylinder 9 is provided with a positioning pin 10. The positioning pin 10 driven by the top pin driving hydraulic cylinder is used to support the positioning point on the workpiece. Four inclined top pin driving hydraulic cylinders 9 are installed at the bottom of the upper positioning mechanism mounting plate, four inclined top pin driving hydraulic cylinders 9 are installed on the column of the fixture 1, two inclined top pin driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1, and four vertical top pin driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1; the output end of the block driving hydraulic cylinder 11 is provided with a flip block 12, and the six block driving hydraulic cylinders 11 are located at the four corners and two sides of the bottom plate of the fixture 1. The lifting hydraulic cylinder 5, the upper positioning hydraulic cylinder, the top pin driving hydraulic cylinder 9 and the block driving hydraulic cylinder 11 are controlled by the operation panel.

[0028] The fixture sliding device is used on the fixture 1 of the engine assembly line, and the workpiece fixed on the fixture 1 is the housing 20. Before loading the workpiece, it is necessary to first control the expansion of the lifting hydraulic cylinder 5 through the operation panel, and the lifting hydraulic cylinder 5 pushes the bracket 6 to rise, and the slide 3 is moved to the outside of the fixture 1 along the slide rail 2 by manpower. After the slide 3 is emptied, the workpiece is placed on the workpiece support 4 of the slide 3, and then the slide 3 is pushed back into the fixture 1 along the slide rail. Then, the lifting hydraulic cylinder 5 and the upper positioning hydraulic cylinder are controlled to move through the operation panel in sequence, and the workpiece descends with the bracket 6, and the upper positioning mechanism mounting plate also descends subsequently, and then the top pin driving hydraulic cylinder 9 and the block driving hydraulic cylinder 11 are controlled to move, and the positioning pin 10 and the flip block 12 firmly position the workpiece on the fixture 1, so as to facilitate the subsequent internal assembly process of the housing 20. After all the processing is completed, the positioning is released according to the reverse operation of the above, the bracket 6 is raised again, the slide 3 is moved to the outside of the fixture 1, and the housing 20 with the internal assembly completed is removed, and the next operation cycle is continued.

[0029] Embodiment 3:

[0030] like Figure 1 , Figure 4 As shown, a fixture sliding device is arranged on a fixture 1. The fixture 1 includes a top plate, a bottom plate and a column. The two ends of the column are fixedly connected to the top plate and the bottom plate respectively, so that the fixture 1 forms a solid frame structure. A workpiece positioning mechanism is provided on the fixture 1. The fixture sliding device includes a slide rail 2, a slide table 3, a lifting hydraulic cylinder 5 and a bracket 6. The slide rail 2 is installed on the fixture 1 and extends outside the fixture 1. A slider 15 is fixed to the bottom of the slide table 3. The slider 15 slides with the slide rail 2 so that the slide table 3 is slidably connected to the slide rail 2. A workpiece support 4 is provided on the slide table 3. The lifting hydraulic cylinder 5 is fixedly installed on the bottom plate of the fixture 1 by screws, the bracket 6 is connected to the piston rod of the lifting hydraulic cylinder 5, and the slide rail 2 is fixedly installed on the bracket 6 by screws. The slide 3 is provided with two long grooves 13 and two short grooves 14. The long grooves 13 and the short grooves 14 extend along the length direction of the slide 3. The two long grooves 13 are parallel, and the two short grooves 14 are on the same straight line and parallel to the long grooves 13. The bracket 6 has two parallel longitudinal grooves 16. The middle of the two longitudinal grooves 16 is connected by a transverse operation, so that the longitudinal grooves 16 and the transverse grooves form an H shape. The longitudinal grooves 16 and the transverse grooves pass through the top and bottom surfaces of the bracket 6. The piston rod of the lifting hydraulic cylinder 5 passes through the transverse groove from bottom to top. The length and width of the cross-section of the cylinder body of the lifting hydraulic cylinder 5 are smaller than the width of the transverse groove, so that the middle and upper sections of the cylinder body of the lifting hydraulic cylinder 5 can be accommodated in the transverse groove. The end of the piston rod of the lifting hydraulic cylinder 5 is fixed with a "X"-shaped connecting block 19 by bolts, and the two ends of the connecting block 19 are fixed to the parts on both sides of the transverse groove on the bracket 6 by screws. A total of eight linear bearings 7 are arranged at the four corners and sides of the bracket 6 , and the linear bearings 7 penetrate the top and bottom surfaces of the bracket 6 . A guide rod 8 is arranged on the bottom plate of the fixture 1 , and the guide rod 8 corresponds to the linear bearing 7 one by one and is slidably connected in the linear bearing 7 .

[0031] The bracket 6 is also provided with a buffer mechanism, which corresponds to the starting point position of the slide 3. The buffer mechanism includes a bracket 17 and a buffer 18. The bracket 17 is fixedly mounted on the bottom plate of the fixture 1, and the buffer 18 is fixed on the bracket 17. The piston rod of the buffer 18 faces the slide 3. The workpiece support 4 includes a support plate that provides a plane support and a support rod that can compensate for the difference in the support position. The support plate is used to support the part of the workpiece that has a large area and can be placed stably, and the support rod is inserted or embedded in the suspended, concave and other parts of the workpiece with a small space or a large difference in height with the surrounding area, supporting the suspended higher parts of the workpiece, thereby compensating for the difference in the support position and better ensuring the balance of the workpiece placement. An upper positioning hydraulic cylinder is fixed on the top plate of the fixture 1, and the piston rod of the upper positioning hydraulic cylinder is connected to the upper positioning mechanism mounting plate. The workpiece positioning mechanism is installed on the upper positioning mechanism mounting plate, the bottom plate and the column of the fixture 1. The workpiece positioning mechanism includes fifteen pin-driving hydraulic cylinders 9 and eight block-driving hydraulic cylinders 11. The piston rod of the pin-driving hydraulic cylinder 9 is provided with a positioning pin 10. The positioning pin 10 driven by the pin-driving hydraulic cylinder is used to support the positioning point on the workpiece. Four inclined pin-driving hydraulic cylinders 9 are installed at the bottom of the upper positioning mechanism mounting plate, four inclined pin-driving hydraulic cylinders 9 are installed on the column of the fixture 1, two inclined pin-driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1, and five vertical pin-driving hydraulic cylinders 9 are installed on the bottom plate of the fixture 1; the output end of the block-driving hydraulic cylinder 11 is provided with a flip block 12, and the eight block-driving hydraulic cylinders 11 are located at the four corners and four sides of the bottom plate of the fixture 1. The lifting hydraulic cylinder 5, the upper positioning hydraulic cylinder, the pin-driving hydraulic cylinder 9 and the block-driving hydraulic cylinder 11 are controlled by the operation panel.

[0032] The fixture sliding device is used on the fixture 1 of the engine assembly line, and the workpiece fixed on the fixture 1 is the housing 20. Before loading the workpiece, it is necessary to first control the expansion of the lifting hydraulic cylinder 5 through the operation panel, and the lifting hydraulic cylinder 5 pushes the bracket 6 to rise, and the slide 3 is moved to the outside of the fixture 1 along the slide rail 2 by manpower. After the slide 3 is emptied, the workpiece is placed on the workpiece support 4 of the slide 3, and then the slide 3 is pushed back into the fixture 1 along the slide rail. Then, the lifting hydraulic cylinder 5 and the upper positioning hydraulic cylinder are controlled to move through the operation panel in sequence, and the workpiece descends with the bracket 6, and the upper positioning mechanism mounting plate also descends subsequently, and then the top pin driving hydraulic cylinder 9 and the block driving hydraulic cylinder 11 are controlled to move, and the positioning pin 10 and the flip block 12 firmly position the workpiece on the fixture 1, so as to facilitate the subsequent internal assembly process of the housing 20. After all the processing is completed, the positioning is released according to the reverse operation of the above, the bracket 6 is raised again, the slide 3 is moved to the outside of the fixture 1, and the housing 20 with the internal assembly completed is removed, and the next operation cycle is continued.

Claims

1. A fixture sliding device, arranged on a fixture (1), wherein the fixture (1) is provided with a workpiece positioning mechanism, wherein: The invention comprises a slide rail (2) and a slide table (3), and also comprises a lifting hydraulic cylinder (5), wherein the slide rail (2) is mounted on a fixture (1) and extends outside the fixture (1), the slide table (3) is slidably connected to the slide rail (2), a workpiece support (4) is provided on the slide table (3), the lifting hydraulic cylinder (5) is fixed on the fixture (1), a bracket (6) is connected to the piston rod of the lifting hydraulic cylinder (5), the slide rail (2) is fixed on the bracket (6), and a buffer mechanism corresponding to the starting point position of the slide table (3) is provided on the bracket (6).

2. The fixture sliding device according to claim 1, characterized in that: A plurality of linear bearings (7) are provided on the bracket (6), and a guide rod (8) which is connected to the linear bearings (7) in a one-to-one correspondence is provided on the fixture (1).

3. The fixture sliding device according to claim 1, characterized in that: The buffer mechanism comprises a bracket (17) and a buffer (18); the bracket (17) is fixedly mounted on a bottom plate of the fixture (1); the buffer (18) is fixed on the bracket (17); and the piston rod of the buffer (18) faces the slide table (3).

4. The fixture slide device according to claim 1, characterized in that the workpiece The support member (4) comprises a support plate for providing planar support and a support rod capable of compensating for the difference in the support position.

5. The fixture slide device according to claim 1, characterized in that: The workpiece positioning mechanism comprises a plurality of ejector pin driving hydraulic cylinders (9), and a positioning pin (10) is provided on the piston rod of the ejector pin driving hydraulic cylinder (9).

6. The fixture slide device according to claim 5, characterized in that: The workpiece positioning mechanism comprises a plurality of block-driving hydraulic cylinders (11), and output ends of the block-driving hydraulic cylinders (11) are provided with turning blocks (12).

7. The fixture slide device according to any one of claims 1 to 6, characterized in that: The clamp (1) comprises a top plate and a bottom plate, and the top plate and the bottom plate are fixedly connected via upright posts.

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