A robot joint hole processing clamping device

Abstract

The utility model relates to a kind of robot joint hole machining clamping devices, including bottom plate, a pair of rear supports are fixed with on bottom plate rear end face left and right distance, front support is fixed in the inside of bottom plate front end, floating block is equipped between rear supports, rear support nail supported on joint rear end bottom surface is equipped with on floating block left and right distance, dynamic pressing plate is equipped on the upper end of rear support and is pressed in the upper end surface of joint rear end;Front support nail supported on joint front end bottom surface is respectively equipped with on the lower end left and right sides of front support, front support upper end is equipped with the fixed pressure plate of pressing joint front end upper end surface;Bottom plate front end edge is fixed with side support, side support upper end is fixed with the normal pressure screw rod of top pressure in joint left side front end surface.The utility model positions joint by front support nail and rear support nail, dynamic pressing plate cooperates fixed pressure plate and presses joint from top to bottom, and normal pressure screw rod is supplemented and presses in the front end of joint front face, to effectively ensure the positioning accuracy and clamping stability of joint, it is favorable to the improvement of joint hole machining precision.

Description

Technical Field

[0001] This utility model relates to the field of robot manufacturing technology, and in particular to a clamping device for machining robot joint holes. Background Technology

[0002] The joints used in robots have a relatively complex structure. The front end has a pair of connecting forks, each with a coaxial radial connecting hole, and the rear end has an axial connecting hole. The machining accuracy of these connecting holes is crucial to the robot's operational accuracy.

[0003] For the aforementioned connecting holes, the conventional method is to position and clamp the joint on a fixture before mounting it on the machine tool table for machining. However, in existing fixture structures, after the joint, which serves as the workpiece, is positioned on the fixture, a pressure plate is used to directly press and fix the upper end face of the joint. But due to the complex shape of the joint, simple pressure plate clamping cannot reliably hold the joint, and the position of the clamping point cannot be adjusted, resulting in insufficient clamping stability. During machining, the joint is prone to displacement, thus affecting machining accuracy. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a clamping device for machining robot joint holes that can effectively improve clamping stability.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a clamping device for machining robot joint holes includes a base plate, a pair of rear supports fixedly spaced on the rear end face of the base plate, a front support fixedly spaced on the inner side of the front end of the base plate, a floating block provided on the base plate between the rear supports, a rear support pin provided on the floating block for supporting the bottom surface of the rear end of the joint, a dynamic pressure plate provided on the upper end of the rear support for pressing against the upper end surface of the rear end of the joint; front support pins provided on the left and right sides of the lower end of the front support for supporting the bottom surface of the front end of the joint, a fixed pressure plate provided on the upper end of the front support for pressing against the upper end surface of the front end of the joint; a side support fixedly spaced on the front edge of the base plate, a positive pressure screw fixedly spaced on the upper end of the side support for pressing against the left front end surface of the joint.

[0006] Specifically, a pair of clamping seats are fixed at a distance from front to back on the rear end face of the base plate, and a pin is connected between the clamping seats. The floating block is fitted onto the pin with a gap.

[0007] Furthermore, a hinge pressure plate is provided between the upper ends of the rear bracket. The right end of the hinge pressure plate is movably connected to the upper end of the right rear bracket. A hinge shaft is movably provided at the upper end of the left rear bracket. A clamping nut that clamps the left end of the hinge pressure plate is connected to the hinge shaft. The movable pressure plate is movably connected to the middle of the hinge pressure plate. Rear bolts that press against the upper end face of the rear end of the joint are fixed at the left and right ends of the movable pressure plate, respectively.

[0008] Furthermore, the middle part of the pressure plate is fixed to the upper end face of the front bracket by bolts, and the left and right ends of the pressure plate are respectively fixed with front bolts pressing against the upper end face of the front end of the joint.

[0009] To improve positioning stability, a side support pin is fixed to the upper end of the right side face of the front bracket, which abuts against the inner end face of the right side of the joint.

[0010] Furthermore, to improve clamping stability, a side-pressure screw is connected to the middle of the rear bracket, pressing against the side of the rear end of the joint.

[0011] The beneficial effects of this utility model are: the joint is positioned by the front support pin and the rear support pin, the moving pressure plate and the fixed pressure plate press the joint from top to bottom, and the positive pressure screw presses the front end of the joint, thereby effectively ensuring the positioning accuracy and clamping stability of the joint, which is conducive to improving and stabilizing the joint hole machining accuracy. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the joint clamping structure in this utility model.

[0015] In the diagram: 1. Base plate, 2. Rear support, 3. Front support, 4. Floating block, 5. Joint, 6. Rear support pin, 7. Dynamic pressure plate, 8. Front support pin, 9. Fixed pressure plate, 10. Side support, 11. Positive pressure screw, 12. Clamping seat, 13. Hinge pressure plate, 14. Hinge shaft, 15. Pressure nut, 16. Rear bolt, 17. Front bolt, 18. Side support pin, 19. Side pressure screw. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] like Figure 1 , Figure 2 The diagram shows a clamping device for machining joint holes in a robot, used for positioning and clamping the robot's joints before machining the five holes.

[0018] The clamping device includes a base plate 1 fixed to the machine tool workbench during processing, a pair of rear supports 2 arranged left and right apart and fixed to the rear end face of the base plate 1, an inverted "T" shaped front support 3 fixed to the inner side of the front end of the base plate 1, and a side support 10 fixed to the front edge of the base plate 1.

[0019] A pair of clamping seats 12 are fixed at a distance from front to back on the rear end face of the base plate 1. A pin is connected between the clamping seats 12. A floating block 4 is fitted on the pin with a gap. A rear support nail 6 supporting the bottom surface of the rear end of the joint 5 is provided on the floating block 4 at a distance from left to right.

[0020] The upper end of the rear support 2 is provided with a movable pressure plate 7 that presses against the upper end face of the rear end of the joint 5. Specifically, the upper end of the rear support 2 is provided with a hinge pressure plate 13. The right end of the hinge pressure plate 13 is movably connected to the upper end of the right rear support 2. The upper end of the left rear support 2 is movably provided with a hinge shaft 14. A clamping nut 15 that presses against the left end of the hinge pressure plate 13 is connected to the hinge shaft 14. The movable pressure plate 7 is movably connected to the middle of the hinge pressure plate 13. The left and right ends of the movable pressure plate 7 are respectively fixed with rear bolts 16 that press against the upper end face of the rear end of the joint 5.

[0021] To improve the overall stability of the joint 5 clamping, each rear bracket 2 is connected to a side pressure screw 19 that presses against the rear side of the joint 5.

[0022] The lower left and right sides of the front bracket 3 are respectively provided with front support nails 8 supporting the bottom surface of the front end of the joint 5. The upper end of the front bracket 3 is provided with a pressure plate 9 that presses the upper surface of the front end of the joint 5. The middle part of the pressure plate 9 is fixed to the upper surface of the front bracket 3 by bolts. The left and right ends of the pressure plate 9 are respectively fixed with front bolts 17 pressing against the upper surface of the front end of the joint 5.

[0023] Meanwhile, a side support pin 18 is fixed on the upper right side surface of the front bracket 3 and positioned against the inner right end surface of the joint 5. In this way, the joint 5 is accurately positioned between the front bracket 3 and the rear bracket 2 by means of the front support pin 8, the rear support pin 6 and the side support pin 18, thereby improving the positioning accuracy of the device.

[0024] The upper end of the side bracket 10 is fixed with a positive pressure screw 11 that presses against the left front end face of the joint 5. After the moving pressure plate 7 and the fixed pressure plate 9 press the joint 5 from top to bottom, the positive pressure screw 11 assists in pressing against the front front of the joint 5, and the side pressure screw 19 presses against the rear side of the joint 5, thereby effectively improving the clamping effect of the device and further ensuring the clamping stability of the joint 5 during the hole processing, which is conducive to improving and stabilizing the hole processing accuracy of the joint 5.

[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A clamping device for machining joint holes in a robot, comprising a base plate (1), a pair of rear supports (2) fixedly spaced apart on the rear end face of the base plate (1), and a front support (3) fixedly on the inner side of the front end of the base plate (1), characterized in that: A floating block (4) is provided on the bottom plate (1) between the rear brackets (2). A rear support nail (6) is provided on the floating block (4) at a distance from left to right, supporting the bottom surface of the rear end of the joint (5). A dynamic pressure plate (7) is provided on the upper end of the rear bracket (2) and pressed against the upper surface of the rear end of the joint (5). The lower left and right sides of the front bracket (3) are respectively provided with front support nails (8) supporting the bottom surface of the front end of the joint (5), and the upper end of the front bracket (3) is provided with a pressure plate (9) for pressing the upper surface of the front end of the joint (5). The front edge of the base plate (1) is fixed with a side bracket (10), and the upper end of the side bracket (10) is fixed with a positive pressure screw (11) pressing against the left front end face of the joint (5).

2. The clamping device for machining robot joint holes as described in claim 1, characterized in that: A pair of clamping seats (12) are fixed at a distance from front to back on the rear end face of the base plate (1). A pin is connected between the clamping seats (12), and the floating block (4) is fitted onto the pin with a gap.

3. The clamping device for machining robot joint holes as described in claim 2, characterized in that: A hinge plate (13) is provided between the upper ends of the rear bracket (2). The right end of the hinge plate (13) is movably connected to the upper end of the rear bracket (2) on the right side. A hinge shaft (14) is movably provided on the upper end of the rear bracket (2) on the left side. A clamping nut (15) is connected to the hinge shaft (14) to clamp the left end of the hinge plate (13). The movable plate (7) is movably connected to the middle of the hinge plate (13). The left and right ends of the movable plate (7) are respectively fixed with rear bolts (16) pressing against the upper end face of the rear end of the joint (5).

4. The clamping device for machining robot joint holes as described in claim 1, characterized in that: The middle part of the pressure plate (9) is fixed to the upper end face of the front bracket (3) by bolts, and the left and right ends of the pressure plate (9) are respectively fixed with front bolts (17) pressing against the upper end face of the front end of the joint (5).

5. The clamping device for machining robot joint holes as described in claim 4, characterized in that: The upper right side surface of the front bracket (3) is fixed with a side support nail (18) that is positioned against the inner right side surface of the joint (5).

6. The clamping device for machining robot joint holes as described in claim 1, characterized in that: The rear support (2) is connected in the middle with a side pressure screw (19) that presses against the side of the rear end of the joint (5).

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