Multi-degree of freedom mobile clamping device

Abstract

The utility model relates to a kind of multi-degree-of-freedom mobile clamping devices, including rack, rack is provided with transverse activity device, transverse activity device is provided with vertical moving device, vertical moving device is installed with fixture mounting seat, the fixture mounting seat is installed with the fixed jaw of opening, fixed jaw is matched with two rotatable movable jaw.The utility model aims at providing a kind of multi-degree-of-freedom mobile clamping devices, to solve the problem that accurate positioning is impossible in the machining and testing process, due to fixture fixed or limited degree of freedom, ensure the accuracy of workpiece datum positioning clamping, improve clamping efficiency and accuracy simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to a multi-degree-of-freedom moving clamping device. Background Technology

[0002] In machining and automated assembly, clamping devices are used to hold workpieces in place to ensure machining accuracy. Traditional clamping devices, such as... Figure 1-2 Three-jaw chucks and vises typically employ a fixed or limited-degree-of-freedom design. These devices are effective when clamping workpieces with regular shapes, but for complex or irregular shapes, they often require frequent adjustments to the clamping position or the use of additional tools, resulting in low clamping efficiency. Furthermore, the limited degrees of freedom of traditional devices make it difficult to meet the processing needs of multiple angles and directions, thus limiting flexibility and accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a multi-degree-of-freedom moving clamping device to solve the problem of inaccurate positioning during processing and testing due to fixed fixtures or limited degrees of freedom, ensuring the accuracy of workpiece reference positioning and clamping, while improving clamping efficiency and precision.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-degree-of-freedom moving clamping device, including a frame, a horizontal moving device is provided on the frame, a vertical moving device is provided on the horizontal moving device, a clamp mounting base is installed on the vertical moving device, and an open fixed jaw is installed on the clamp mounting base, with two rotatable movable jaws cooperating with the fixed jaw.

[0005] Preferably, the frame is a rectangular beam structure.

[0006] Preferably, the middle part of the movable jaw is mounted on the fixed jaw by a first positioning pin, and the end away from the clamping part is mounted on the screw mating block by a second positioning pin. The screw mating blocks of the two movable jaws are mounted on the same clamping screw, and the winding directions of the two screw mating blocks on the clamping screw are opposite. The clamping screw is mounted on the clamp mounting base by a screw support end seat, and a handwheel is fitted at the upper end of the clamping screw.

[0007] Preferably, a jaw pad is installed inside the fixed jaw, and an anti-slip pad is installed on the clamping part of the movable jaw.

[0008] Preferably, the lateral moving device includes a lateral mounting base and a lateral motor mounted on the frame. The lateral motor is connected to a lateral lead screw via a coupling. The lateral mounting base is also provided with a lateral slide rail parallel to the lateral lead screw. The lateral lead screw is sleeved with a lateral moving seat. The lateral moving seat cooperates with the lateral slide rail via a lateral slider. The vertical moving device is mounted on the lateral moving seat.

[0009] Preferably, the vertical moving device includes a vertical mounting base disposed on a horizontal movable base, a vertical motor and a vertical lead screw are mounted on the vertical mounting base, and the vertical motor and the vertical lead screw are connected by a coupling. The vertical lead screw is sleeved onto a clamp mounting base, and both the vertical lead screw and the horizontal lead screw are locked by lead screw mounting bolts.

[0010] The technical effects of this utility model are as follows:

[0011] Traditional clamps are mostly single-axis or simple linkages. This design is equipped with stepper motors on both the X and Z axes, which are precisely driven by lead screws and couplings to achieve independent movement of two degrees of freedom in the plane. The clamping adjustment of the third and fourth degrees of freedom can be superimposed through the guide rail-slider mechanism.

[0012] Conventional testing platforms either rely on manual adjustment or are fully automatic; this invention organically combines the manual adjustment function of the handwheel and lead screw support end seat with the automatic positioning of the stepper motor, allowing users to switch from coarse adjustment to fine adjustment at any time without the need for tool replacement or system shutdown. Attached Figure Description

[0013] Figure 1 For existing three-jaw chucks.

[0014] Figure 2 For existing vises.

[0015] Figure 3 This is a three-dimensional schematic diagram of a multi-degree-of-freedom moving clamping device.

[0016] Figure 4 This is a side view of a multi-degree-of-freedom moving clamping device.

[0017] Figure 5 This is a top view of a multi-degree-of-freedom moving clamping device.

[0018] The text labels in the diagram represent: 1. Horizontal motor; 2. Frame; 3. Coupling; 4. Horizontal slide rail; 5. Horizontal lead screw; 6. Vertical motor; 7. Vertical lead screw; 8. Vertical slide rail; 9. Fixed jaws; 10. Fixture mounting base; 11. Jaw pad; 12. Lead screw mounting bolt; 13. Horizontal movable seat; 14. Anti-slip pad; 15. Fixture screw; 16. Handwheel; 17. Screw support end seat; 18. Horizontal slider; 19. First locating pin; 20. Second locating pin; 21. Movable jaws; 22. Horizontal mounting base; 23. Vertical mounting base. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0020] like Figures 3-5 As shown, this application discloses a multi-degree-of-freedom movable clamping device, including a frame 2. A lateral movable device is mounted on the frame 2, and a vertical movable device is mounted on the lateral movable device. A clamp mounting base 10 is mounted on the vertical movable device. An open fixed jaw 9 is mounted on the clamp mounting base 10. Two rotatable movable jaws 21 are fitted onto the fixed jaw 9. The middle part of each movable jaw 21 is mounted on the fixed jaw 9 via a first positioning pin 19, and the end away from the clamping part is mounted on a screw mating block via a second positioning pin. The screw mating blocks of the two movable jaws 21 are mounted on the same clamping screw 15, and the winding directions of the two screw mating blocks on the clamping screw 15 are opposite. The clamping screw 15 is mounted on the clamp mounting base 10 via a screw support end seat 17, and a handwheel 16 is fitted to the upper end of the clamping screw 15. A fixed jaw 9 is fitted with... The device is equipped with a jaw pad 11, and the clamping part of the movable jaw 21 is equipped with an anti-slip pad 14. The transverse moving device includes a transverse mounting base and a transverse motor 1 mounted on the frame 2. The transverse motor 1 is connected to a transverse lead screw 5 through a coupling 3. The transverse mounting base is also provided with a transverse slide rail 4 parallel to the transverse lead screw 5. The transverse lead screw 5 is sleeved with a transverse movable seat 13. The transverse movable seat 13 is engaged with the transverse slide rail 4 through a transverse slider 18. The vertical moving device is mounted on the transverse movable seat 13. The vertical moving device includes a vertical mounting base 22 set on the transverse movable seat 13. The vertical mounting base 22 is equipped with a vertical motor 6 and a vertical lead screw 7, and the vertical motor 6 and the vertical lead screw 7 are connected through a coupling 3. The vertical lead screw 7 is sleeved with a clamp mounting base 10, and both the vertical lead screw 7 and the transverse lead screw 5 are locked by lead screw mounting bolts 12.

[0021] In practical use, the horizontal and vertical positions are first adjusted. The horizontal adjustment is achieved by the horizontal motor 1 (usually a stepper motor) working with the coupling 3 to drive the horizontal lead screw 4 to rotate, which in turn drives the horizontal movable seat 10 to move along the horizontal slide rail 4 to reach the required position. The vertical movement is basically the same as the horizontal movement. Finally, the clamp mounting seat 10 reaches the required position, so that the open fixed jaws match the position of the workpiece. Then, the workpiece is placed into the fixed jaw 9, and the clamp screw 15 is rotated by turning the handwheel 16, which drives the two movable jaws 21 to rotate in opposite directions, thus completing the clamping of the workpiece. The design of the anti-slip pad 14 and the jaw pad 11 can ensure better clamping of the workpiece.

[0022] After the work is completed, the handwheel 16 is turned in the opposite direction to rotate the clamp screw 15, which in turn causes the two movable jaws 21 to rotate in opposite directions, thereby releasing the workpiece.

[0023] This process requires no change of fixtures, and the clamping and unclamping actions can be switched quickly, which not only ensures high-precision positioning of the workpiece under multi-degree-of-freedom clamping, but also greatly improves clamping efficiency and test pass rate.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A multi-degree-of-freedom moving clamping device, comprising a frame (2), characterized in that, A horizontal moving device is provided on the frame (2), a vertical moving device is provided on the horizontal moving device, a clamp mounting base (10) is installed on the vertical moving device, and an open fixed jaw (9) is installed on the clamp mounting base (10), and two rotatable movable jaws (21) are fitted on the fixed jaw (9).

2. The multi-degree-of-freedom moving clamping device according to claim 1, characterized in that, The middle part of the movable jaw (21) is mounted on the fixed jaw (9) by the first positioning pin (19), and the end away from the clamping part is mounted on the screw mating block by the second positioning pin. The screw mating blocks of the two movable jaws (21) are mounted on the same clamp screw (15), and the winding directions of the two screw mating blocks on the clamp screw (15) are opposite. The clamp screw (15) is mounted on the clamp mounting base (10) by the screw support end seat (17), and the upper end of the clamp screw (15) is fitted with a handwheel (16).

3. The multi-degree-of-freedom moving clamping device according to claim 2, characterized in that, A jaw pad (11) is installed inside the fixed jaw (9), and an anti-slip pad (14) is installed on the clamping part of the movable jaw (21).

4. The multi-degree-of-freedom moving clamping device according to claim 1, characterized in that, The lateral moving device includes a lateral mounting base and a lateral motor (1) mounted on the frame (2). The lateral motor (1) is connected to a lateral lead screw (5) via a coupling (3). The lateral mounting base is also provided with a lateral slide rail (4) parallel to the lateral lead screw (5). The lateral lead screw (5) is sleeved with a lateral moving seat (13). The lateral moving seat (13) cooperates with the lateral slide rail (4) via a lateral slider (18). The vertical moving device is mounted on the lateral moving seat (13).

5. A multi-degree-of-freedom moving clamping device according to claim 4, characterized in that, The vertical moving device includes a vertical mounting base (22) set on a horizontal movable seat (13). A vertical motor (6) and a vertical lead screw (7) are mounted on the vertical mounting base (22). The vertical motor (6) and the vertical lead screw (7) are connected by a coupling (3). The vertical lead screw (7) is sleeved on a clamp mounting base (10). Both the vertical lead screw (7) and the horizontal lead screw (5) are locked by lead screw mounting bolts (12).

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