Clamp mechanism for robot

Abstract

The utility model relates to the field of machinery manufacturing, and discloses a clamp mechanism for a robot, which comprises a support frame, the top end of the support frame is fixedly connected with a fixing plate, the inner wall of the fixing plate is provided with a limiting mechanism, the top end of the fixing plate is inserted with a mounting plate, the top end of the support frame is fixedly connected with an electric push rod I, and the electric push rod II is fixedly connected with a clamping mechanism. The bottom end of the first electric push rod is fixedly connected with a contact plate, the side wall of the supporting frame is fixedly connected with a second electric push rod through a support, the movable end of the second electric push rod is fixedly connected with a connecting frame, and a movable pipe is arranged at the bottom end of the connecting frame. According to the robot clamp mechanism, the fixing plate is inserted into the notch in the bottom end of the mounting plate, the wedge block is matched with the reset spring, rapid mounting and one-way limiting of the supporting frame and the mounting plate are achieved, dismounting is easy and convenient, only the pulling plate needs to be pulled, mounting and replacing of the robot clamp mechanism are convenient, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to a clamp mechanism for a robot. Background Art

[0002] In modern industrial production, robots are used more and more widely, and they undertake important tasks in various fields, such as manufacturing, logistics, processing, etc. However, for robots to complete their work effectively, the performance of their clamping mechanisms is crucial.

[0003] Traditional robot fixture mechanisms often have complex and tedious problems in installation and disassembly, which not only wastes time but also affects the improvement of production efficiency. Secondly, for the fixation of workpieces, since workpieces of different shapes and sizes put higher requirements on the fixture, previous fixtures have poor adaptability when facing workpieces of different shapes, and it is difficult to achieve stable and effective fixation. Therefore, a fixture mechanism for robots is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a clamp mechanism for a robot, aiming to improve the problem in the prior art that the clamp mechanism cannot be quickly assembled and disassembled.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a clamping mechanism for a robot, comprising a support frame, the top end of the support frame is fixedly connected to a fixing plate, the inner wall of the fixing plate is provided with a limiting mechanism, the top end of the fixing plate is plugged with a mounting plate, the top end of the support frame is fixedly connected to an electric push rod 1, the bottom end of the electric push rod 1 is fixedly connected to a contact plate, the side wall of the support frame is fixedly connected to an electric push rod 2 through a bracket, the movable end of the electric push rod 2 is fixedly connected to a connecting frame, the bottom end of the connecting frame is provided with a movable tube, the right end of the movable tube is fixedly connected to a contact ring, and the bottom end of the connecting frame is provided with a piston assembly;

[0006] The limiting mechanism includes a pull plate, which passes through and is slidably connected to the inner wall of the fixed plate. A wedge is fixedly connected to the top of the fixed plate, and the left end of the pull plate is elastically connected to the fixed plate through a reset spring.

[0007] As a further description of the above technical solution:

[0008] The piston assembly includes a piston tube, which is fixedly connected to the bottom end of the connecting frame. An air bag is provided at the left end of the piston tube, and the inner wall of the piston tube is piston-connected to the outer wall of the movable tube.

[0009] As a further description of the above technical solution:

[0010] The piston tube is connected to the airbag at a connection point.

[0011] As a further description of the above technical solution:

[0012] The left end of the pulling plate is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the inner wall of the left end of the fixing plate.

[0013] As a further description of the above technical solution:

[0014] The wedge block penetrates and is slidably connected to the inner wall of the fixing plate.

[0015] As a further description of the above technical solution:

[0016] The wedge block is inserted into the inner wall of the mounting plate.

[0017] As a further description of the above technical solution:

[0018] The connecting frame penetrates and is slidably connected to the inner wall of the supporting frame.

[0019] As a further description of the above technical solution:

[0020] There are two groups of connecting frames, which are symmetrically arranged at both ends of the supporting frame.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by inserting the fixing plate into the notch at the bottom end of the mounting plate and utilizing the cooperation of the wedge block and the return spring, the support frame and the mounting plate can be quickly installed and one-way limited. Moreover, the disassembly is also relatively simple, and only the pull plate needs to be pulled, which facilitates the installation and replacement of the robot clamp mechanism and improves work efficiency.

[0023] 2. In the present invention, the contact ring is brought into contact with the workpiece by means of the second electric push rod. With the help of the flow of air between the piston tube and the airbag and the elastic force of the airbag, the movable tube can adapt to the contact movement of workpieces of different shapes. The first electric push rod then drives the contact plate to press against the upper part of the workpiece to increase stability, thereby effectively improving the fixing effect and adaptability to workpieces of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic overall perspective view of a support frame, a fixing plate and a mounting plate of a clamp mechanism for a robot proposed in the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of an overall mounting plate of a fixture mechanism for a robot proposed in the present invention;

[0026] Figure 3This is a schematic overall cross-sectional view of a fixing plate of a clamp mechanism for a robot proposed in the present invention;

[0027] Figure 4 This is an electric push rod for a robot clamp mechanism proposed by the present invention. 2. An overall three-dimensional schematic diagram of the connecting frame;

[0028] Figure 5 This is a schematic overall cross-sectional view of a piston tube of a clamp mechanism for a robot proposed by the present invention.

[0029] Legend:

[0030] 1. Support frame; 2. Fixed plate; 3. Return spring; 4. Pull plate; 5. Wedge; 6. Mounting plate; 7. Electric push rod 1; 8. Contact plate; 9. Electric push rod 2; 10. Connecting frame; 11. Movable tube; 12. Contact ring; 13. Piston tube; 14. Airbag. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 3, the utility model provides an embodiment: a clamp mechanism for a robot, including a support frame 1, the support frame 1 mainly supports and connects the electric push rod 1 7, the electric push rod 2 9 and the connecting frame 10, the top of the support frame 1 is fixedly connected with a fixing plate 2, the inner wall of the fixing plate 2 is provided with a limiting mechanism, the top of the fixing plate 2 is plugged with a mounting plate 6, the mounting plate 6 has bolt holes, and the mounting plate 6 can be installed on the movable part of the robot by bolts, the top of the support frame 1 is fixedly connected with an electric push rod 1 7, the electric push rod 1 7 can vertically press and position the tightened workpiece, the bottom end of the electric push rod 1 7 is fixedly connected with a contact plate 8, the contact plate 8 is made of plastic material, and can be connected with The contact of the workpiece increases the friction of its surface. The side wall of the support frame 1 is fixedly connected to the electric push rod 29 through the bracket. The electric push rod 29 can move laterally along the support frame 1 with the connecting frame 10. The electric push rod 29 is provided with two groups, which can allow the connecting frames 10 to move closer to or separate from each other. The movable end of the electric push rod 29 is fixedly connected to the connecting frame 10. The connecting frame 10 mainly connects the piston tube 13. The bottom end of the connecting frame 10 is provided with a movable tube 11. The right end of the movable tube 11 is fixedly connected with a contact ring 12. The contact ring 12 is made of rubber material, which can allow the contact ring 12 to contact with the workpiece to increase the friction after clamping and make it more stable. The bottom end of the connecting frame 10 is provided with a piston assembly;

[0033] The limiting mechanism includes a pull plate 4, which passes through and is slidably connected to the inner wall of the fixed plate 2. A slot corresponding to the pull plate 4 is provided on the fixed plate 2, allowing the pull plate 4 to move laterally along the fixed plate 2. A wedge block 5 is fixedly connected to the top of the fixed plate 2. The wedge block 5 is an inclined surface. When the inclined surface is squeezed, the wedge block 5 will move laterally. The left end of the pull plate 4 is elastically connected to the fixed plate 2 through a reset spring 3.

[0034] Reference Figure 1 、 Figure 4 and Figure 5 The piston assembly includes a piston tube 13, which is fixedly connected to the bottom end of the connecting frame 10. An air bag 14 is provided at the left end of the piston tube 13. The inner wall of the piston tube 13 is connected to the outer wall of the movable tube 11 by a piston. The piston tube 13 can be moved by the movable tube 11 to squeeze the air in the piston tube 13. The connection point of the piston tube 13 and the air bag 14 is connected.

[0035] Reference Figure 1-Figure 3The left end of the pull plate 4 is fixedly connected to one end of the return spring 3. When the pull plate 4 moves to the left, the return spring 3 will be in a compressed state. When resetting, the pull plate 4 is reset by the elastic force of the return spring 3, and the other end of the return spring 3 is fixedly connected to the inner wall of the left end of the fixed plate 2. The wedge block 5 passes through and is slidably connected to the inner wall of the fixed plate 2. A notch corresponding to the wedge block 5 is provided on the fixed plate 2, which allows the wedge block 5 to leak out from the notch, and the wedge block 5 is inserted into the inner wall of the mounting plate 6. The mounting plate 6 is provided with a notch corresponding to the wedge block 5, which allows the wedge block 5 to be inserted into the notch to limit the entire support frame 1 in one direction. The connecting frame 10 passes through and is slidably connected to the inner wall of the support frame 1. The connecting frame 10 is provided with two groups, and the two groups of connecting frames 10 are symmetrically arranged at both ends of the support frame 1.

[0036] After the cam 5 is in the working state, the cam 5 is in the working state, and the cam 5 is in the working state, so that the cam 5 can move to the left and return to the working state after the cam 5 is in the working state, and the cam 5 is in the working state after the cam 5 is in the working state.

[0037] When the workpiece is fixed, the robot carries the mounting plate 6 and the support frame 1 to the workpiece, so that the workpiece is kept between the two sets of contact rings 12, and then the electric push rod 2 9 is started to carry the connecting frame 10, the piston tube 13, the movable tube 11 and the contact ring 12 to move closer to each other, so that the contact ring 12 contacts the workpiece, and the reverse force when the contact ring 12 contacts the workpiece is used to make the contact ring 12 and the movable tube 11 move to the left to compress the air in the piston tube 13, so that the air is discharged from the piston tube 13 into the air bag 14, and the air bag 14 will continue to expand. Due to the elastic force of the air bag 14 itself, the air will re-enter the piston tube 13, and the elastic force of the air bag 14 will make the air offset the force generated by the movement of the movable tube 11, so that the movable tube 11 contacts and moves at different distances with workpieces of different shapes, which can adapt to workpieces of different shapes. Finally, the electric push rod 1 7 is started to make the electric push rod 1 7 move downward with the contact plate 8, so that the contact plate 8 presses against the upper part of the workpiece to increase its stability.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clamping mechanism for a robot, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a fixed plate (2), the inner wall of the fixed plate (2) is provided with a limiting mechanism, the top of the fixed plate (2) is plugged with a mounting plate (6), the top of the support frame (1) is fixedly connected to an electric push rod 1 (7), the bottom end of the electric push rod 1 (7) is fixedly connected to a contact plate (8), the side wall of the support frame (1) is fixedly connected to an electric push rod 2 (9) through a bracket, the movable end of the electric push rod 2 (9) is fixedly connected to a connecting frame (10), the bottom end of the connecting frame (10) is provided with a movable tube (11), the right end of the movable tube (11) is fixedly connected to a contact ring (12), and the bottom end of the connecting frame (10) is provided with a piston assembly; The limiting mechanism includes a pull plate (4), which penetrates and is slidably connected to the inner wall of the fixed plate (2), a wedge block (5) is fixedly connected to the top of the fixed plate (2), and the left end of the pull plate (4) is elastically connected to the fixed plate (2) via a return spring (3).

2. The robot clamping mechanism according to claim 1, characterized in that: The piston assembly includes a piston tube (13), the piston tube (13) is fixedly connected to the bottom end of the connecting frame (10), an air bag (14) is provided at the left end of the piston tube (13), and the inner wall of the piston tube (13) is piston-connected to the outer wall of the movable tube (11).

3. The clamping mechanism for a robot according to claim 2, characterized in that: The piston tube (13) is in communication with the air bag (14) connection point.

4. The clamping mechanism for a robot according to claim 1, characterized in that: The left end of the pulling plate (4) is fixedly connected to one end of the return spring (3), and the other end of the return spring (3) is fixedly connected to the inner wall of the left end of the fixed plate (2).

5. The clamping mechanism for a robot according to claim 1, characterized in that: The wedge block (5) passes through and is slidably connected to the inner wall of the fixed plate (2).

6. The clamping mechanism for a robot according to claim 1, characterized in that: The wedge (5) is plugged into the inner wall of the mounting plate (6).

7. The clamping mechanism for a robot according to claim 1, characterized in that: The connecting frame (10) passes through and is slidably connected to the inner wall of the supporting frame (1).

8. The clamping mechanism for a robot according to claim 1, characterized in that: Two groups of the connecting frames (10) are provided, and the two groups of the connecting frames (10) are symmetrically arranged at both ends of the support frame (1).

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