Clamping device of multi-axis linkage machining center
By introducing dampers and spring structures into the clamping device of a multi-axis linkage machining center, the problems of impact and vibration during high-speed clamping are solved, achieving stable workpiece clamping and cleaning, and extending the service life of the equipment.
Patent Information
- Application Number
- CN202520241995.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing multi-axis machining centers lack buffer structures in their clamping devices when clamping at high speeds or with great force, resulting in impact and vibration that may damage the workpiece and shorten the equipment's lifespan.
It employs a damper and spring structure, combined with hydraulic rods and clamping plates. The damper reduces clamping impact, the spring provides cushioning to ensure clamping stability, and the worktable is cleaned by a brush.
It reduces impact and vibration during clamping, protects workpieces from damage, extends equipment life, and improves processing stability and cleaning efficiency.
Smart Images
Figure CN223762741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a clamping device for a multi-axis linkage machining center. Background Technology
[0002] A clamping device for a multi-axis machining center is typically used in high-precision, high-efficiency machining of complex parts. Because multi-axis machining centers have multiple degrees of freedom and can simultaneously machine multiple surfaces of a workpiece, their clamping devices need to be multifunctional and high-precision to ensure the workpiece is stably and accurately fixed throughout the complex machining process. In the automotive industry, complex engine components, gearbox housings, and other components require multi-axis machining centers for efficient machining of multiple surfaces. The clamping device must be adaptable to machining the workpiece at different angles, ensuring the stability of the part throughout the entire machining cycle, reducing repetitive positioning during workpiece clamping, and improving machining efficiency.
[0003] However, existing clamping devices for some multi-axis linkage machining centers typically involve placing the workpiece directly on top of the worktable and then activating the hydraulic cylinder to clamp and fix the workpiece. This approach fails to consider that in high-speed or high-force clamping situations, the clamping device needs a buffer structure to reduce the impact or vibration generated during clamping, extend the equipment's lifespan, and protect the workpiece from damage. Therefore, this paper proposes a clamping device for multi-axis linkage machining centers to address these issues. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a clamping device for a multi-axis linkage machining center, which aims to improve the problem of the lack of a buffer structure in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A clamping device for a multi-axis linkage machining center includes a worktable. A mounting plate is fixedly connected to the top left side of the worktable. A drive assembly for providing clamping force to the device is fixedly connected to the top of the mounting plate. A clamping plate is fixedly connected to the right side of the drive assembly. Fixing plates are fixedly connected to the top left and right sides of the worktable. A fixing rod is fixedly connected to the outside of the fixing plate. A base is fixedly connected to the top right side of the worktable. Dampers are fixedly connected to the front and rear ends of the top left side of the base. A spring is sleeved on the outside of each of the two dampers. A force-bearing plate is fixedly connected to the left side of the two dampers. Anti-slip textures are provided on the adjacent sides of the force-bearing plate and the clamping plate.
[0007] As a further description of the above technical solution:
[0008] The drive assembly includes a hydraulic rod, the bottom of which is fixedly connected to the top of the mounting plate, and the left middle part of the clamping plate is fixedly connected to the output end of the hydraulic rod.
[0009] As a further description of the above technical solution:
[0010] The clamping plate has a cavity inside. Fixing rods 2 are fixedly connected to the front and rear sides of the cavity. Springs 2 are sleeved on the outside of the two fixing rods 2. Sliding plates are slidably connected to the outside of the two fixing rods 2. A connecting plate is fixedly connected to the bottom of the sliding plate. A loading plate is fixedly connected to the bottom of the connecting plate. Multiple brushes are fixedly connected to the bottom of the loading plate.
[0011] As a further description of the above technical solution:
[0012] The front and rear sides of the clamping plate are slidably connected to the outside of the two fixing rods, and the bottom of the force-bearing plate is slidably connected to the top of the base.
[0013] As a further description of the above technical solution:
[0014] One end of the spring is fixedly connected to the right side of the force-bearing plate, and the other end of the spring is fixedly connected to the left side of the base.
[0015] As a further description of the above technical solution:
[0016] The outer side of the sliding plate is slidably connected to the inside of the cavity, and the top of the connecting plate is slidably connected to the inside of the cavity;
[0017] As a further description of the above technical solution:
[0018] One end of the second spring is fixedly connected to the top inner wall of the cavity, and the other end of the second spring is fixedly connected to the top of the sliding plate;
[0019] As a further description of the above technical solution:
[0020] The bottom of the brush contacts the top of the workbench, and the top of the connecting plate contacts the inner wall of the cavity.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the damper and spring one can prevent the workpiece from being damaged due to excessive clamping force provided by the hydraulic rod, thereby reducing the impact force or vibration generated during clamping, extending the service life of the equipment and protecting the workpiece from damage. Furthermore, the fixed plate and fixed rod one can make the device more stable when clamping the workpiece.
[0023] 2. In this utility model, when the device processes the workpiece that is clamped and fixed, the debris generated during processing will fall onto the top of the worktable. At this time, when the hydraulic rod is activated to clamp the workpiece, the clamping plate will drive multiple brushes to move. As a result, the multiple brushes will clean the top of the worktable during their movement. Furthermore, the setting of the second spring allows the brushes to make closer contact with the top of the worktable, thereby improving the cleaning power of the brushes. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a clamping device for a multi-axis linkage machining center proposed in this utility model;
[0025] Figure 2 for Figure 1 Enlarged view of point A;
[0026] Figure 3 This is a schematic diagram of the cavity structure of the clamping device of a multi-axis linkage machining center proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the spring 2 of the clamping device of a multi-axis linkage machining center proposed in this utility model.
[0028] Legend:
[0029] 1. Workbench; 2. Mounting plate; 3. Hydraulic rod; 4. Clamping plate; 5. Fixing plate; 6. Fixing rod one; 7. Base; 8. Damper; 9. Spring one; 10. Force plate; 11. Anti-slip texture; 12. Cavity; 13. Fixing rod two; 14. Spring two; 15. Sliding plate; 16. Connecting plate; 17. Loading plate; 18. Brush. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1 to 3This utility model provides an embodiment of a clamping device for a multi-axis linkage machining center, comprising a worktable 1, a mounting plate 2 fixedly connected to the top left side of the worktable 1, thereby providing support for the mounting plate 2, a drive assembly for providing clamping force to the device fixedly connected to the top of the mounting plate 2, thereby providing support for the drive assembly, a clamping plate 4 fixedly connected to the right side of the drive assembly, thereby enabling the drive assembly to move the clamping plate 4, the drive assembly including a hydraulic rod 3, the bottom of the hydraulic rod 3 fixedly connected to the top of the mounting plate 2, thereby providing support for the hydraulic rod 3, the left middle of the clamping plate 4 fixedly connected to the output end of the hydraulic rod 3, thereby enabling the output end of the hydraulic rod 3 to move the clamping plate 4, thereby clamping and fixing the workpiece when the clamping plate 4 moves, and fixing plates 5 fixedly connected to the top left and right sides of the worktable 1, thereby providing support for the fixing plates 5.
[0032] A fixing rod 6 is fixedly connected to the outside of the fixing plate 5, thus providing support for the fixing rod 6. The front and rear sides of the clamping plate 4 are slidably connected to the outside of the two fixing rods 6, thereby making the movement of the clamping plate 4 more stable. A base 7 is fixedly connected to the top right side of the worktable 1, thus providing support for the base 7. Damperes 8 are fixedly connected to the front and rear ends of the top left side of the base 7, thus providing support for the dampers 8. Springs are fitted on the outside of both dampers 8. A force plate 10 is fixedly connected to the left side of the two dampers 8. When the force plate 10 is subjected to the pressure of the workpiece, it will press the damper 8. One end of the spring 9 is fixedly connected to the right side of the force plate 10, and the other end of the spring 9 is fixedly connected to the left side of the base 7. When the force plate 10 moves, it will also compress the spring 9. The bottom of the force plate 10 is slidably connected to the top of the base 7. Anti-slip textures 11 are provided on the adjacent side of the force plate 10 and the clamping plate 4. The anti-slip textures 11 make the workpiece clamped more stably.
[0033] Reference Figure 1 , Figure 3 and Figure 4The clamping plate 4 has an internal cavity 12. Fixing rods 13 are fixedly connected to both the front and rear sides of the cavity 12, providing support for the fixing rods 13. Springs 14 are fitted around both fixing rods 13, providing support for them. A sliding plate 15 is slidably connected to the outside of the fixing rods 13, allowing the sliding plate 15 to slide in the direction indicated by the fixing rods 13. One end of each spring 14 is fixedly connected to the top inner wall of the cavity 12, and the other end is fixedly connected to the top of the sliding plate 15. When the sliding plate 15 moves, it compresses the springs 14. The outside of the sliding plate 15 is slidably connected to the inside of the cavity 12. The cavity 12 enables the sliding plate 15 to move more stably. A connecting plate 16 is fixedly connected to the bottom of the sliding plate 15. When the connecting plate 16 is subjected to force, it will drive the sliding plate 15 to move. The top of the connecting plate 16 is in contact with the inner wall of the cavity 12, thereby making the movement of the connecting plate 16 more stable. The top of the connecting plate 16 is slidably connected to the inside of the cavity 12. A loading plate 17 is fixedly connected to the bottom of the connecting plate 16. When the loading plate 17 is subjected to force, it will drive the connecting plate 16 to move. Multiple brushes 18 are fixedly connected to the bottom of the loading plate 17. When the brushes 18 are subjected to force, they will drive the loading plate 17 to move. The bottom of the brushes 18 is in contact with the top of the worktable 1, so that the brushes 18 will clean the top of the worktable 1 during the movement.
[0034] Working Principle: When a workpiece needs to be clamped and processed, it is first placed at a suitable position on top of the worktable 1. A mounting plate 2 is fixedly connected to the left side of the worktable 1, and a drive assembly, including a hydraulic rod 3, is fixedly connected to the top of the mounting plate 2. The bottom of the hydraulic rod 3 is fixedly connected to the top of the mounting plate 2. When the hydraulic rod 3 is activated, its output end drives the clamping plate 4 towards the workpiece. The middle left side of the clamping plate 4 is fixedly connected to the output end of the hydraulic rod 3. The extension and retraction of the hydraulic rod 3 directly pushes the clamping plate 4 closer to the workpiece, thus clamping and fixing it.
[0035] The front and rear sides of the clamping plate 4 are slidably connected to the two fixed rods 6, which are supported on the top sides of the worktable 1 by the fixed plate 5. The fixed rods 6 ensure that the clamping plate 4 is more stable during movement, preventing wobbling and ensuring clamping accuracy.
[0036] When the clamping plate 4 clamps the workpiece, the workpiece exerts pressure on the force plate 10, causing the force plate 10 to move towards the damper 8 under pressure. The damper 8, through the inclusion of spring 9, mitigates the impact force generated during clamping, thus preventing damage to the workpiece due to excessive clamping force provided by the hydraulic rod 3. One end of spring 9 is fixedly connected to the left side of the base 7, and the other end is fixedly connected to the right side of the force plate 10. As the force plate 10 moves, spring 9 is compressed, providing a buffering effect and further reducing vibrations generated during clamping. This process effectively protects the workpiece, ensuring its integrity during processing.
[0037] When machining a workpiece, the resulting debris falls onto the top of the worktable 1. At this time, by activating the hydraulic rod 3, the clamping plate 4 releases its grip on the workpiece, simultaneously moving the loading plate 17 and multiple brushes 18. The loading plate 17 is connected to the sliding plate 15 via a connecting plate 16. The sliding plate 15 slides along a fixed direction guided by two fixed rods 13. The movement of the sliding plate 15 also compresses a spring 14, one end of which is fixed to the top inner wall of the cavity 12, and the other end is connected to the sliding plate 15. Therefore, the movement of the sliding plate 15 is regulated by the elastic force of the spring 14, ensuring smooth movement and keeping the brushes 18 in close contact with the top of the worktable 1 for cleaning.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clamping device of a multi-axis machining center comprising a worktable (1), characterized in that: The top left side of the workbench (1) is fixedly connected with a mounting plate (2), the top of the mounting plate (2) is fixedly connected with a driving assembly for providing clamping force for the device, the right side of the driving assembly is fixedly connected with a clamping plate (4), the top of the workbench (1) is fixedly connected with a fixed plate (5) on the left and right sides, the outside of the fixed plate (5) is fixedly connected with a fixed rod one (6), the top right side of the workbench (1) is fixedly connected with a base (7), the left top of the base (7) is fixedly connected with a damper (8) at the front and rear ends, the outside of the two dampers (8) is sleeved with a spring one (9), the left side of the two dampers (8) is fixedly connected with a stress plate (10), and the side close to the clamping plate (4) of the stress plate (10) is provided with an anti-skid line (11).
2. A clamping device for a multi-axis machining center according to claim 1, characterized in that: The driving assembly comprises a hydraulic rod (3), and the bottom of the hydraulic rod (3) is fixedly connected to the top of the mounting plate (2).
3. The clamping device of a multi-axis machining center according to claim 1, characterized in that: The inside of the clamping plate (4) is provided with a cavity (12), the inside of the cavity (12) is fixedly connected with a fixed rod two (13) at the front and rear sides, the outside of the two fixed rod twos (13) is sleeved with a spring two (14), the outside of the two fixed rod twos (13) is slidably connected with a sliding plate (15), the bottom of the sliding plate (15) is fixedly connected with a connecting plate (16), the bottom of the connecting plate (16) is fixedly connected with a loading plate (17), and the bottom of the loading plate (17) is fixedly connected with a plurality of brushes (18).
4. The clamping device of a multi-axis machining center according to claim 1, characterized in that: The front and rear sides of the clamping plate (4) are slidably connected to the outside of the two fixed rod ones (6), and the bottom of the stress plate (10) is slidably connected to the top of the base (7).
5. The clamping device of a multi-axis machining center according to claim 1, characterized in that: One end of the spring one (9) is fixedly connected to the right side of the stress plate (10), and the other end of the spring one (9) is fixedly connected to the left side of the base (7).
6. A clamping device for a multi-axis machining center according to claim 3, characterized in that: The outside of the sliding plate (15) is slidably connected to the inside of the cavity (12), and the top of the connecting plate (16) is slidably connected to the inside of the cavity (12).
7. The clamping device of a multi-axis machining center according to claim 3, characterized in that: One end of the spring two (14) is fixedly connected to the top inner wall of the cavity (12), and the other end of the spring two (14) is fixedly connected to the top of the sliding plate (15).
8. The clamping device of a multi-axis machining center according to claim 3, characterized in that: The bottom of the brush (18) is in contact with the top of the workbench (1), and the top of the connecting plate (16) is in contact with the inner wall of the cavity (12).