Robot quick-change clamp capable of avoiding shaking and loosening

Abstract

The utility model discloses a robot quick-change clamp capable of avoiding shaking and loosening, and relates to the technical field of clamps, the robot quick-change clamp comprises a placing table, a mechanical arm is arranged on one side of the placing table, and a fixed joint is arranged at one end of the mechanical arm. In order to improve the stability of clamping connection between clamps to be replaced, a fixed connector can be in butt joint with a first connector, a servo motor in the fixed connector is started, the servo motor drives a rotating disc to rotate through rotation of a rotating shaft, the rotating disc rotates to drive a sliding rod to slide along the inner wall of a chute, and meanwhile, the clamping connection between the clamps to be replaced is completed. And the sliding rod is driven to slide in the sliding groove in the surface of the fixing disc, the sliding of the sliding rod drives the clamping rod to do telescopic motion along the outer wall of the fixing connector, the clamping rod is inserted into the clamping groove in the inner wall of the first connector, the effect of clamping connection between the first connector and the fixing connector is achieved, and the effect of improving the replacement and use stability of the clamp is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a robot quick-change clamp which can avoid shaking and loosening. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a clamp. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture.

[0003] However, when the existing clamp is in use, the shape of the clamp is often relatively fixed, and the effect of quick replacement of the clamp is not high. In addition, when clamps of different shapes are quickly replaced, the clamp's engagement stability when being taken is not high, which can easily cause the clamp to shake and loosen when the clamp is replaced and transported, affecting the accuracy of the subsequent use of the clamp.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a robot quick-change fixture that can avoid shaking and loosening is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a robot quick-change fixture that can avoid shaking and loosening, so as to solve the problems in the above-mentioned background technology that the quick replacement effect of the fixture is not high and the clamping stability effect when the fixture is taken is not high.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a robot quick-change fixture for preventing shaking and loosening, comprising a placing table, a mechanical arm is arranged on one side of the placing table, a fixed joint is arranged on one end of the mechanical arm, a first joint is suspended on the outer wall of the placing table, a first fixture is fixedly connected to the bottom of the first joint, a second joint located on one side of the first joint is suspended on the outer wall of the placing table, a second fixture is fixedly connected to the bottom of the second joint, a placing groove is provided at the connecting portion between the outer wall of the placing table and the second joint, a servo motor is fixedly connected to the inside of the fixed joint, a rotating shaft rotatably connected to the inner wall of the fixed joint is fixedly connected to the output end of the servo motor, a turntable is fixedly connected to the outer wall of the rotating shaft, a sliding rod is slidably connected to the outer wall of the turntable, an oblique groove is provided at the connecting portion between the outer wall of the turntable and the sliding rod, a fixed disk is fixedly connected to the inner wall of the fixed joint to be slidably connected to the outer wall of the sliding rod, a sliding groove is provided at the connecting portion between the outer wall of the fixed disk and the sliding rod, a clamping rod is fixedly connected to the outer wall of the sliding rod to be slidably connected to the outer wall of the fixed joint, and a clamping groove is provided at the connecting portion between the inner wall of the first joint and the clamping rod.

[0007] Furthermore, an air blowing pipe is arranged on the outer wall of the placing table, a grinding wheel paper is arranged on the bottom of the placing table, and a pneumatic clamp is arranged on the outer wall of the placing table.

[0008] Furthermore, the outer wall contours of the first joint and the second joint are both larger than the inner wall contour of the placement groove.

[0009] Furthermore, the outer walls of the first joint and the second joint are both provided with corresponding identification blocks.

[0010] Furthermore, the rotation center of the rotating shaft and the rotation center of the rotating disk are arranged to overlap with each other.

[0011] Furthermore, the slot is arranged on the movement track of the clamp rod, and the clamp rod and the slot are both arranged in a ring shape about the central axis of the first joint, and the inner wall contour of the slot is matched with the outer wall contour of the clamp rod.

[0012] Furthermore, a positioning groove is provided at the connection position between the outer wall of the pneumatic clamp and the grinding wheel paper, and the pneumatic clamp is arranged on the running track of the air blowing pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model adopts the setting of the clamping rod, when the processing fixture is replaced by the mechanical arm, in order to improve the stability of the clamping connection between the fixture to be replaced, the fixed joint can be docked with the first joint, and the servo motor in the fixed joint is turned on. The drive of the servo motor drives the turntable to rotate through the rotation of the rotating shaft. The rotation of the turntable drives the sliding rod to slide along the inner wall of the inclined groove. At the same time, it drives the sliding rod to slide in the sliding groove on the surface of the fixed disk. The sliding of the sliding rod drives the clamping rod to perform telescopic movement along the outer wall of the fixed joint, and the clamping rod is inserted into the clamping groove on the inner wall of the first joint, so as to achieve the effect of the clamping connection between the first joint and the fixed joint, thereby improving the stability of the fixture replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the fixture platform;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixture platform in another direction;

[0017] Figure 3 It is a schematic diagram of the card slot position distribution structure;

[0018] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the fixed joint;

[0019] Figure 5 This is a schematic diagram of the second joint operation structure.

[0020] In the figure: 1. placement table; 2. robotic arm; 3. first joint; 4. first fixture; 5. second joint; 6. second fixture; 7. placement slot; 8. fixed joint; 9. servo motor; 10. rotating shaft; 11. turntable; 12. sliding rod; 13. inclined slot; 14. fixed plate; 15. slide slot; 16. clamping rod; 17. clamping slot; 18. air blow pipe; 19. grinding wheel paper; 20. pneumatic clamp. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1: Figure 1-Figure 4 As shown, a robot quick-change fixture for preventing shaking and loosening includes a placement table 1, a robot arm 2 is arranged on one side of the placement table 1, a fixed joint 8 is arranged at one end of the robot arm 2, a first joint 3 is hung on the outer wall of the placement table 1, a first fixture 4 is fixedly connected to the bottom of the first joint 3, a second joint 5 located on one side of the first joint 3 is hung on the outer wall of the placement table 1, a second fixture 6 is fixedly connected to the bottom of the second joint 5, a placement groove 7 is opened at the connection part between the outer wall of the placement table 1 and the second joint 5, a servo motor 9 is fixedly connected to the inside of the fixed joint 8, and the output end of the servo motor 9 is fixedly connected A rotating shaft 10 is provided which is rotatably connected to the inner wall of the fixed joint 8, a rotating disk 11 is fixedly connected to the outer wall of the rotating shaft 10, a sliding rod 12 is slidably connected to the outer wall of the rotating disk 11, an inclined groove 13 is provided at the connection position between the outer wall of the rotating disk 11 and the sliding rod 12, a fixed disk 14 which is slidably connected to the outer wall of the sliding rod 12 is fixedly connected to the inner wall of the fixed joint 8, a sliding groove 15 is provided at the connection position between the outer wall of the fixed disk 14 and the sliding rod 12, a clamping rod 16 which is slidably connected to the outer wall of the fixed joint 8 is fixedly connected to the outer wall of the sliding rod 12, and a clamping groove 17 is provided at the connection position between the inner wall of the first joint 3 and the clamping rod 16.

[0023] Furthermore, the outer wall contours of the first joint 3 and the second joint 5 are both larger than the inner wall contour of the placement groove 7, which is beneficial for achieving the effect of conveniently hanging and placing the fixture to be replaced by setting the outer wall contours of the first joint 3 and the second joint 5 larger than the inner wall contour of the placement groove 7.

[0024] Furthermore, the outer walls of the first joint 3 and the second joint 5 are both provided with corresponding identification blocks, which is beneficial for effectively identifying and using different types of clamps.

[0025] Furthermore, the rotation center of the rotating shaft 10 and the rotation center of the turntable 11 are arranged to overlap with each other, and the turntable 11 forms a rotating structure through the servo motor 9 and the rotating shaft 10 and the fixed joint 8, which is conducive to the drive of the servo motor 9 through the connection of the rotating shaft 10, driving the turntable 11 to rotate along the inner wall of the fixed joint 8, thereby driving the sliding rod 12 to slide conveniently.

[0026] Furthermore, the slot 17 is arranged on the movement trajectory of the clamping rod 16, and the clamping rod 16 and the slot 17 are both arranged in a ring shape with respect to the central axis of the first joint 3, and the inner wall contour of the slot 17 is adapted to the outer wall contour of the clamping rod 16, which is beneficial to improve the stability of the clamp replacement and use by setting the slot 17 on the movement trajectory of the clamping rod 16, and the clamping rod 16 and the slot 17 are both arranged in a ring shape with respect to the central axis of the first joint 3, thereby achieving the effect of reducing the shaking and loosening when the clamp is replaced.

[0027] Embodiment 2: Figure 1 , Figure 2 and Figure 5 As shown, the utility model proposes a robot quick-change fixture that avoids shaking and loosening. Compared with the first embodiment, as another implementation of the utility model, the outer wall of the placement table 1 is provided with a blow pipe 18, the bottom of the placement table 1 is provided with a grinding wheel paper 19, and the outer wall of the placement table 1 is provided with a pneumatic clamping block 20. When working, by setting a clamping rod 16, it is beneficial to replace the processing fixture by the robot arm 2. In order to improve the stability of the clamping connection between the fixtures to be replaced, the fixed joint 8 can be docked with the first joint 3, and the fixed joint 8 can be opened. The servo motor 9 is driven by the rotation of the rotating shaft 10, which drives the turntable 11 to rotate. The rotation of the turntable 11 drives the sliding rod 12 to slide along the inner wall of the inclined groove 13. At the same time, it drives the sliding rod 12 to slide in the sliding groove 15 on the surface of the fixed plate 14. The sliding of the sliding rod 12 drives the clamping rod 16 to perform telescopic movement along the outer wall of the fixed joint 8, and the clamping rod 16 is inserted into the clamping groove 17 on the inner wall of the first joint 3, so as to achieve the effect of clamping connection between the first joint 3 and the fixed joint 8, thereby improving the stability of the clamp replacement and use.

[0028] Furthermore, a positioning groove is provided at the connection position between the outer wall of the pneumatic clamp 20 and the grinding paper 19, and the pneumatic clamp 20 is arranged on the running track of the air blowing pipe 18, which is conducive to achieving the effect of conveniently blowing off and replacing the grinding paper 19 by setting the pneumatic clamp 20 on the running track of the air blowing pipe 18.

[0029] Working principle: When using this kind of robot quick-change fixture that avoids shaking and loosening, when the processing fixture is replaced by the robot arm 2, in order to improve the stability of the snap-fit ​​connection between the fixture to be replaced, the fixed joint 8 can be docked with the first joint 3, and the servo motor 9 in the fixed joint 8 is turned on. The drive of the servo motor 9 drives the turntable 11 to rotate through the rotation of the rotating shaft 10. The rotation of the turntable 11 drives the sliding rod 12 to slide along the inner wall of the inclined groove 13. At the same time, it drives the sliding rod 12 to slide in the slide groove 15 on the surface of the fixed disk 14. The sliding of the sliding rod 12 drives the clamping rod 16 to telescopic movement along the outer wall of the fixed joint 8, and the clamping rod 16 is inserted into the clamping groove 17 on the inner wall of the first joint 3, thereby achieving the effect of the snap-fit ​​connection between the first joint 3 and the fixed joint 8, thereby improving the stability of the fixture replacement.

[0030] This is how a robotic quick-change gripper that doesn't wobble loose works.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A robot quick-change fixture for preventing shaking and loosening, comprising a placement table (1), characterized in that: A mechanical arm (2) is provided on one side of the placement table (1), a fixed joint (8) is provided on one end of the mechanical arm (2), a first joint (3) is suspended on the outer wall of the placement table (1), a first clamp (4) is fixedly connected to the bottom of the first joint (3), a second joint (5) located on one side of the first joint (3) is suspended on the outer wall of the placement table (1), a second clamp (6) is fixedly connected to the bottom of the second joint (5), a placement groove (7) is provided at the connection portion between the outer wall of the placement table (1) and the second joint (5), a servo motor (9) is fixedly connected to the inside of the fixed joint (8), and an output end of the servo motor (9) is fixedly connected to a rotating shaft connected to the inner wall of the fixed joint (8). A rotating shaft (10) is connected, the outer wall of the rotating shaft (10) is fixedly connected to a rotating disk (11), the outer wall of the rotating disk (11) is slidably connected to a sliding rod (12), a connecting portion between the outer wall of the rotating disk (11) and the sliding rod (12) is provided with an inclined groove (13), the inner wall of the fixed joint (8) is fixedly connected to a fixed disk (14) slidably connected to the outer wall of the sliding rod (12), a connecting portion between the outer wall of the fixed disk (14) and the sliding rod (12) is provided with a sliding groove (15), the outer wall of the sliding rod (12) is fixedly connected to a clamping rod (16) slidably connected to the outer wall of the fixed joint (8), and a clamping groove (17) is provided at a connecting portion between the inner wall of the first joint (3) and the clamping rod (16).

2. A robot quick-change fixture for preventing shaking and loosening according to claim 1, characterized in that: An air blowing pipe (18) is provided on the outer wall of the placement table (1), a grinding wheel paper (19) is provided on the bottom of the placement table (1), and a pneumatic clamping block (20) is provided on the outer wall of the placement table (1).

3. The robot quick-change fixture for preventing shaking and loosening according to claim 1, characterized in that: The outer wall profiles of the first joint (3) and the second joint (5) are both larger than the inner wall profile of the placement groove (7).

4. The robot quick-change fixture for preventing shaking and loosening according to claim 1, characterized in that: The outer walls of the first joint (3) and the second joint (5) are both provided with corresponding identification blocks.

5. The robot quick-change fixture for preventing shaking and loosening according to claim 1, characterized in that: The rotation center of the rotating shaft (10) and the rotation center of the rotating disk (11) are arranged to coincide with each other.

6. The robot quick-change fixture for preventing shaking and loosening according to claim 1, characterized in that: The clamping groove (17) is arranged on the movement track of the clamping rod (16), and the clamping rod (16) and the clamping groove (17) are both arranged in a ring shape with respect to the central axis of the first joint (3), and the inner wall profile of the clamping groove (17) is adapted to the outer wall profile of the clamping rod (16).

7. The robot quick-change fixture for preventing shaking and loosening according to claim 2, characterized in that: A positioning groove is provided at the connection position between the outer wall of the pneumatic clamping block (20) and the grinding wheel paper (19), and the pneumatic clamping block (20) is arranged on the running track of the air blowing pipe (18).

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