An ultra-long stroke slide table integrated multi-specification clamping device

Abstract

The application relates to the technical field of super-long mechanical part machining, in particular to a super-long stroke sliding table integrated multi-specification clamping device, which comprises a base and a sliding table. Two groups of heavy-load linear guides are arranged in parallel on the base, the sliding table is installed on the heavy-load linear guides, a rack plate is fixedly connected to the lower surface of the sliding table, the rack plate is arranged in the base, one end of the base is provided with a mounting hole, a motor is installed in the mounting hole, one end of the motor is provided with a speed reducer, a gear is installed on the speed reducer, and the gear is engaged with the rack plate. The sliding table moves along the heavy-load guide in a super-long stroke, a plurality of groups of clamping components are arranged at equal intervals on the sliding table, the super-long stroke sliding table integrated multi-specification clamping device can be compatible with long workpiece machining of different length specifications, the interval between two bench clamps of a single group of clamping components can be quickly adjusted by rotating a rotating shaft, the single group of clamping components can be adapted to workpieces of different sizes without replacing clamping blocks, and the type changing time is greatly shortened.

Description

Technical Field

[0001] This invention relates to the field of ultra-long mechanical parts processing technology, and in particular to an integrated multi-specification clamping device for an ultra-long stroke slide table. Background Technology

[0002] In intelligent manufacturing scenarios such as new energy batteries, long profile processing, automobile beams, chassis assembly, pipe cutting, large 3C modules, and rail transit component processing, there are many working conditions with large length spans, mixed workpiece specifications, and the need for long-distance transportation and in-situ clamping processing.

[0003] As the manufacturing industry transforms towards multi-variety, small-batch, and flexible automation, traditional single-function tooling, short-stroke grippers, and separate slides and fixture structures can no longer meet the needs of mixed-line production. The industry urgently needs integrated equipment that takes into account five core indicators: ultra-long travel stroke, multi-size adaptive clamping, high rigidity, high precision, and compact layout.

[0004] In the existing technology, most fixtures are fixed opening structures, which can only be used for workpieces of a single size. When switching to different specifications of workpieces, it is necessary to manually replace the clamping blocks and adjust the clamping stroke, which is time-consuming. At the same time, the clamping surfaces in the fixtures are mostly flat, which makes it difficult to stably clamp irregularly shaped workpieces, causing the workpieces to easily shift. Summary of the Invention

[0005] The purpose of this invention is to address the following shortcomings in the prior art: existing fixtures are mostly fixed opening structures, which are only suitable for workpieces of a single size. When switching to different specifications of workpieces, it is necessary to manually change the clamping blocks and adjust the clamping stroke, which is time-consuming. At the same time, the clamping surfaces in the fixtures are mostly planar, which makes it difficult to stably clamp irregularly shaped workpieces, causing the workpieces to easily deviate. Therefore, this invention proposes an ultra-long stroke slide integrated multi-specification clamping device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An integrated multi-specification clamping device for an ultra-long stroke slide table includes: The base and the slide are provided. The base is provided with two sets of heavy-duty linear guides arranged in parallel. The slide is installed on the heavy-duty linear guides. A rack plate is fixedly connected to the lower surface of the slide. The rack plate is disposed inside the base. The base has a mounting hole at one end, a motor is installed in the mounting hole, a reducer is installed at one end of the motor, a gear is installed on the reducer, and the gear meshes with the rack plate; The clamping assembly comprises multiple sets of clamping assemblies arranged at equal intervals on the slide table. Each clamping assembly includes a vise, a sleeve, and a slider. Two sliders are slidably connected to the slide table, and two sleeves are fixedly connected to the sliders. A rotating shaft is threaded between the two sleeves, and two vises are fixedly connected to the sleeves.

[0007] Preferably, the vise is arranged in a right-angled trapezoidal shape, and a square-shaped pad is fixedly connected to one side wall of the vise.

[0008] Preferably, a baffle is slidably connected inside the vise, and multiple rows of equally spaced support rods are slidably connected to the baffle. The support rods are slidably connected to the shims, and a spring is provided between the baffle and the inner wall of the vise.

[0009] Preferably, an air bag is installed inside the vise, and one side of the air bag is fixedly connected to the baffle.

[0010] Preferably, a piston plate is fixedly connected to one side of each of the two sliders, and a square box is slidably connected between the two piston plates. A sealing ring is provided on the outer wall of each piston plate.

[0011] Preferably, the square box has two connecting pipes fixedly connected to it, and the ends of the two connecting pipes away from the square box are respectively connected to the inflatable bag.

[0012] Preferably, the slide table is provided with multiple sets of side plates, each set having two side plates, and the two side plates are respectively disposed on both sides of the clamping assembly.

[0013] Preferably, the lower end of the base is provided with multiple support plates, and a housing is fixedly connected to the support plates. The support plates are connected to the base by bolts. A screw is threadedly connected to the housing, and a bracket is slidably connected to the housing. A through hole is opened at the upper end of the bracket, and the screw slides in the through hole. An anti-slip pad is provided at the end of the bracket away from the housing.

[0014] Preferably, the ends of the plurality of support rods away from the baffle are arranged in an arc shape, and the other ends of the support rods are fixedly connected to the side wall of the inflatable bag.

[0015] Preferably, a heat sink is mounted on the base, and the heat sink is disposed on one side of the mounting hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention allows the slide table to move along a heavy-duty guide rail for an ultra-long stroke. With multiple sets of clamping components equidistantly arranged on the slide table, it can be compatible with the processing of long workpieces of different lengths. The distance between the two vises can be quickly adjusted by rotating the shaft of a single clamping component. It can adapt to workpieces of different sizes without changing the clamping blocks, greatly reducing the changeover time.

[0017] 2. When clamping irregular workpieces, the support rods at different positions will move differently according to the shape of the workpiece sidewall. The end faces of multiple support rods automatically form a contoured surface that fits against the workpiece sidewall. At the same time, during the clamping process of the vise, the piston plate simultaneously squeezes the air in the square box, automatically inflating the air bag and pushing the support rods to further press against the workpiece sidewall. While achieving contoured adaptive clamping, it improves clamping stability and effectively avoids workpiece displacement during processing. The whole system integrates ultra-long stroke movement and multi-specification adaptive clamping functions, with a compact structure that meets the needs of mixed-line flexible production.

[0018] 3. The drive motor rotates, which in turn drives the gears to rotate. The gears rotate, which in turn moves the meshing rack plate, allowing the slide to move along the heavy-duty linear guide. This allows the overall movement distance to be adjusted according to actual processing requirements, thus adapting to processing requirements with ultra-long strokes.

[0019] 4. This device features an ultra-long integrated stroke of 20m, providing high precision and stability over long distances. The integrated long slide table, combined with a full-length precision gear and rack plate transmission, differs from segmented and spliced ​​slide tables. It has no splicing gaps, and the gear pairs are ground and matched, resulting in low vibration during long-distance movement and high repeatability positioning accuracy, meeting the continuous processing and feeding requirements of ultra-long components. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of an integrated multi-specification clamping device for an ultra-long stroke slide table proposed in this invention. Figure 2 This is a schematic diagram of the side plate structure of an integrated multi-specification clamping device for an ultra-long stroke slide table proposed in this invention; Figure 3 This is a partial structural diagram of the base of an integrated multi-specification clamping device for an ultra-long stroke slide table proposed in this invention; Figure 4 for Figure 3 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 This is a schematic diagram of the cross-sectional structure of an integrated multi-specification clamping device for ultra-long stroke slides proposed in this invention. Figure 6 This is a schematic diagram of a bench vise structure for an integrated multi-specification clamping device with an ultra-long stroke slide table proposed in this invention. Figure 7This is a schematic diagram of the internal structure of a bench vise for an integrated multi-specification clamping device with an ultra-long stroke slide table proposed in this invention. Figure 8 for Figure 5 A magnified schematic diagram of part B.

[0021] In the diagram: 1. Base, 2. Bracket, 3. Mounting plate, 4. Motor, 5. Bolt, 6. Rack plate, 7. Support plate, 8. Side plate, 9. Screw, 10. Housing, 11. Slide table, 12. Sleeve, 13. Bench vise, 14. Washer, 15. Shaft, 16. Connecting pipe, 17. Piston plate, 18. Square box, 19. Slider, 20. Support rod, 21. Inflatable bag, 22. Baffle, 23. Connecting plate, 24. Reducer, 25. Gear. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figures 1-3 An integrated multi-specification clamping device for ultra-long stroke slides, comprising: Base 1 and slide 11. Base 1 has two sets of heavy-duty linear guides arranged in parallel. Slide 11 is mounted on the heavy-duty linear guides. The body of the long slide 11 is integrally welded from thick steel plate. After welding, the whole body undergoes stress-relieving aging heat treatment to eliminate welding stress and prevent warping deformation during long-term reciprocating operation. A rack plate 6 is fixedly connected to the lower surface of slide 11 and is set inside base 1. Slide 11 has multiple sets of side plates 8, with two side plates in each set. The two side plates 8 are respectively set on both sides of the clamping assembly. Multiple support plates 7 are provided at the lower end of base 1. Housing 10 is fixedly connected to support plates 7. Support plates 7 are connected by screws. Bolt 5 is connected to base 1. Screw 9 is threaded onto housing 10. Support 2 is slidably connected to housing 10. Support 2 has a through hole at its upper end. Screw 9 slides in the through hole. Anti-slip pad is provided at the end of support 2 away from housing 10. Support 2 is installed in housing 10 by screw 9. Support 2, housing 10 and support plate 7 form a support for base 1. Support 2 is a leveling foot composed of a cylinder and a lead screw. When the cylinder rotates, it can drive the lead screw to move vertically. Multiple supports 2 are installed at the bottom of the base. After installation, the leveling feet are used to adjust the level of the whole machine to eliminate the problems of slide table offset and jamming caused by uneven ground.

[0024] Reference Figure 3 , Figure 4 , Figure 5 , Figure 8One end of the base 1 has a mounting hole, and a heat sink is mounted on the base 1. The heat sink does not directly dissipate heat from the motor 4, but rather allows external air to pass through it to dissipate heat from the motor 4. The heat sink is located on one side of the mounting hole, on the side of the motor 4, for dissipating heat from the motor 4 while preventing large external impurities from approaching the motor 4. The motor 4 is installed in the mounting hole, and a reducer 24 (a planetary reducer) is mounted on one end of the motor 4. A gear 25 is mounted on the reducer 24, and the surfaces of the gear 25 and the rack plate 6 are precision ground and quenched. The output end of the motor 4 is connected to the input shaft of the planetary reducer 24, and the output shaft of the planetary reducer 24 is connected to the input shaft of the reducer 24. A fixed drive gear 25 is paired with a precision rack plate 6 and ground to achieve a meshing clearance within 0.02mm. The motor 4 outputs precise torque, which is amplified by the reducer 24 and then drives the drive gear 25 and rack plate 6 to move the entire long slide table 11 smoothly back and forth along the guide rail. The long-distance movement is vibration-free and the positioning accuracy is stable. The gear 25 meshes with the rack plate 6, and the motor 4, in conjunction with the planetary reducer 24, outputs stable torque to drive the gear 25 to rotate. Relying on the rack plate 6, the entire long slide table 11 is driven to move linearly back and forth along the linear guide rail. The maximum sliding stroke can reach 20m. There is no obvious vibration during long-distance transmission, and the positioning accuracy is high.

[0025] Reference Figures 5-7 The clamping components are arranged equidistantly on the slide table 11. An adjustable clamping component is fixed every meter along the length of the upper surface of the slide table 11. Each adjustable clamping component can be manually adjusted to open and close a universal clamp, capable of clamping various specifications of products such as round pipes, square profiles, and irregularly shaped long workpieces. The multi-point equidistant clamping components further address the deformation problem of ultra-long workpieces: each meter of adjustable calipers provides multi-point distributed support, evenly distributing the cutting and grinding forces, preventing the workpiece from dangling and deflecting in the middle, significantly reducing processing deformation and dimensional deviation scrap rates. The length of the slide table 11, the clamping points, and the specifications of the guide rail rack can be adjusted as needed, adapting to batch processing of ultra-long profiles and long parts of different lengths and weights, demonstrating its versatility. The clamping assembly includes a vise 13, a sleeve 12, and a slider 19. Two sliders 19 are slidably connected to a slide table 11, and two sleeves 12 are fixedly connected to the sliders 19. A rotating shaft 15 is threaded between the two sleeves 12. Rotating the rotating shaft 15 causes the two sleeves 12 to move closer or further apart through threads with different directions at both ends, thereby causing the two vises 13 to move synchronously. This allows adjustment of the clamping distance between the two vises 13 to accommodate the clamping requirements of workpieces of different sizes. The two vises 13 are fixedly connected to the sleeves 12. The vises 13 are arranged in a right-angled trapezoidal shape. A square-shaped shim 14 is fixedly connected to one side wall of the vise 13, and the two shims 14 are arranged in parallel.

[0026] Reference Figure 6 , Figure 7Two sliders 19 are fixedly connected to one side of a piston plate 17, and a square box 18 is slidably connected between the two piston plates 17. The outer wall of the piston plate 17 is provided with a sealing ring. The piston plate 17 slides in a sealed manner within the square box 18, thereby compressing the gas inside the square box 18 during movement and preventing the gas inside the square box 18 from flowing out through the gap between it and the inner wall of the piston plate 17. Two connecting pipes 16 are fixedly connected to the square box 18, and valves are provided on the connecting pipes 16. If a small amount of air leakage occurs during long-term use and the gas inside the square box 18 is continuously depleted, the gas inside the square box 18 is replenished. The ends of the two connecting pipes 16 away from the square box 18 are respectively connected to an air bag 21. The two piston plates 17 move closer to each other inside the square box 18, thereby compressing the air inside the square box 18. The air is transported to the air bag 21 through the two connecting pipes 16. After the air bag 21 is inflated, it pushes the baffle 22 to move. The baffle 22 pushes each support rod 20 to press against the side wall of the workpiece, further improving the clamping stability.

[0027] Reference Figure 6 , Figure 7A baffle 22 is slidably connected inside the vise 13. Multiple rows of equally spaced support rods 20 are slidably connected to the baffle 22. The ends of the support rods 20 away from the baffle 22 are arc-shaped, and the other ends of the support rods 20 are fixedly connected to the side wall of the inflatable bag 21. The arc-shaped end of the support rod 20 contacts the outer surface of the workpiece to avoid scratching the surface of the workpiece. When the outer surface of the workpiece is a smooth plane, the support rods 20 can slide completely into the vise 13 when the workpiece is clamped. At this time, the outer surface of the shim 14 contacts the outer surface of the workpiece. When the gasket 14 is compressed, it acts as a buffer, preventing rigid clamping of the workpiece and thus avoiding bending and deformation. Furthermore, the gasket 14 increases friction with the workpiece, preventing vertical displacement within the vise 13. The support rod 20 is slidably connected to the gasket 14 and slides laterally on the gasket 14, vise 13, and baffle 22. A spring is provided between the baffle 22 and the inner wall of the vise 13. The spring is used to pull the baffle 22 back to its original position and compress the air bag 21. An inflatable bag 21 is installed inside the vise 13. The inflatable bag 21 is made of a retractable and wear-resistant material. One side of the inflatable bag 21 is fixedly connected to the baffle 22. When the inflatable bag 21 expands as the gas increases, it can push multiple support rods 20 to move laterally synchronously. The support rods 20 are limited by the workpiece, so that the ends of the support rods 20 are in close contact with the outer surface of the workpiece and are in an uneven state, thus providing a vertical limiting effect on the workpiece. The two vises 13 provide a lateral clamping and limiting effect on the workpiece, thereby achieving... Stable clamping of irregular workpieces prevents workpiece displacement during processing, improving processing accuracy and safety. After clamping is completed and processing ends, the two vises 13 move away from each other to release the workpiece. The two sliders 19 move in opposite directions, causing the piston plate 17 to move away from each other, creating a negative pressure inside the square box 18. This draws the air out of the air bag 21 back into the square box 18, causing the air bag 21 to contract and the baffle 22 to reset. The spring assists in pushing the baffle 22 back, and the support rod 20 releases the clamping limit on the workpiece, making it easier to remove the workpiece.

[0028] In this invention, the bracket 2 is placed on the ground to support the entire device. The drive motor 4 rotates, and the reducer 24 drives the gear 25 to rotate. The rotation of the gear 25 drives the meshing rack plate 6 to move, so that the slide table 11 can move along the heavy-duty linear guide rail. This allows the overall moving distance to be adjusted according to actual processing needs, adapting to the processing requirements of ultra-long strokes.

[0029] When clamping workpieces of different specifications, rotating the shaft 15 causes the two sleeves 12 to move closer or further apart through threads with different directions at both ends. When the shaft 15 rotates, the two sleeves 12 move away from each other, while when the shaft 15 rotates in the opposite direction, it can drive the two sleeves 12 to move closer together, thereby driving the two vises 13 to move synchronously. This allows adjustment of the clamping distance between the two vises 13 to adapt to the clamping requirements of workpieces of different sizes. There is no need to manually change the clamping blocks, which greatly shortens the changeover time. One end of the shaft 15 is equipped with a handle to facilitate the operator to rotate the shaft 15. At the same time, a conventional self-locking structure is provided between the shaft 15 and the sleeves 12 to prevent the shaft 15 from rotating on its own.

[0030] When the vise 13 clamps the workpiece, the irregular workpiece sidewall will squeeze the corresponding support rod 20. The support rod 20 pushes the baffle 22 to squeeze the spring. At the same time, the support rod 20 at different positions will produce different displacements according to the shape of the workpiece sidewall. The end faces of multiple support rods 20 form a contoured surface that fits against the workpiece sidewall, thereby achieving stable clamping of the irregular workpiece and avoiding workpiece displacement during processing.

[0031] When the two vises 13 approach each other to clamp the workpiece, the two sliders 19 move synchronously, causing the two piston plates 17 to move closer together inside the square box 18, thereby compressing the air inside the square box 18. The air is then transported to the air bag 21 through the two connecting pipes 16. After the air bag 21 inflates, it pushes the baffle 22 to move. The baffle 22 pushes the support rods 20 to press against the side wall of the workpiece, further improving the clamping stability. The clamping action and the air-pressing are automatically and synchronously completed without the need for additional drive components. The overall structure is more compact and integrated, effectively reducing equipment modification costs and adapting to mixed-line flexible production scenarios. When the workpiece is released after processing, the two sliders 19 drive the piston plates 17 to move away from each other, and the square box 18... A negative pressure is created inside the 8th chamber, drawing the air out of the air bag 21 back into the square box 18. The spring pulls the baffle 22 to reset, causing each support rod 20 to retract, facilitating the removal of the workpiece and preparing for the next clamping operation. This eliminates the need for additional air pumps and other structures, resulting in higher device integration, simpler control logic, and reduced maintenance difficulty. This device achieves integrated processing of ultra-long components, solving the problems of large gaps and poor long-distance movement accuracy of traditional segmented slide tables 11. It also further solves the problems of cumbersome fixture changes and inability to adapt to irregular workpieces. It can meet the production needs of mixed-line processing of long workpieces of various specifications, effectively improving processing efficiency and yield.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-specification integrated clamping device for an ultra-long stroke slide table, characterized in that, include: The base (1) and the slide (11) are provided with two sets of heavy-duty linear guides arranged in parallel on the base (1). The slide (11) is installed on the heavy-duty linear guides. A rack plate (6) is fixedly connected to the lower surface of the slide (11). The rack plate (6) is located inside the base (1). The base (1) has a mounting hole at one end, a motor (4) is installed in the mounting hole, a reducer (24) is installed at one end of the motor (4), a gear (25) is installed on the reducer (24), and the gear (25) meshes with the rack plate (6); The clamping assembly consists of multiple sets of clamping assemblies arranged at equal intervals on the slide table (11). The clamping assembly includes a vise (13), a sleeve (12), and a slider (19). Two sliders (19) are slidably connected to the slide table (11), two sleeves (12) are fixedly connected to the sliders (19), a rotating shaft (15) is threaded between the two sleeves (12), and two vises (13) are fixedly connected to the sleeves (12).

2. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 1, characterized in that, The vise (13) is arranged in a right-angled trapezoidal shape, and a square-shaped gasket (14) is fixedly connected to one side wall of the vise (13).

3. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 2, characterized in that, A baffle (22) is slidably connected inside the vise (13). Multiple rows of equally spaced support rods (20) are slidably connected on the baffle (22). The support rods (20) are slidably connected to the gasket (14). A spring is provided between the baffle (22) and the inner wall of the vise (13).

4. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 3, characterized in that, An air bag (21) is installed inside the vise (13), and one side of the air bag (21) is fixedly connected to the baffle (22).

5. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 4, characterized in that, Piston plates (17) are fixedly connected to one side of each of the two sliders (19), and a square box (18) is slidably connected between the two piston plates (17). A sealing ring is provided on the outer wall of the piston plate (17).

6. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 5, characterized in that, Two connecting pipes (16) are fixedly connected to the square box (18), and the ends of the two connecting pipes (16) away from the square box (18) are respectively connected to the inflatable bag (21).

7. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 1, characterized in that, The slide (11) is provided with multiple sets of side plates (8), each set of side plates (8) consists of two, and the two side plates (8) are respectively arranged on both sides of the clamping assembly.

8. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 1, characterized in that, The base (1) has multiple support plates (7) at its lower end. A housing (10) is fixedly connected to the support plate (7). The support plate (7) is connected to the base (1) by bolts (5). A screw (9) is threaded onto the housing (10). A bracket (2) is slidably connected onto the housing (10). A through hole is opened at the upper end of the bracket (2). The screw (9) slides in the through hole. An anti-slip pad is provided at the end of the bracket (2) away from the housing (10).

9. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 4, characterized in that, The ends of the multiple support rods (20) away from the baffle (22) are arranged in an arc shape, and the other ends of the support rods (20) are fixedly connected to the side wall of the inflatable bag (21).

10. The integrated multi-specification clamping device for an ultra-long stroke slide table according to claim 1, characterized in that, A heat sink is installed on the base (1), and the heat sink is disposed on one side of the mounting hole.

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