A rotation limiting and clamping device for robot arm

Abstract

The utility model relates to the field of robot arm limit technology, and discloses a rotation limit clamping device for a robot arm, including an upper closed cover and a support buffer mechanism, the inner wall of the upper closed cover is provided with an internal fixing groove, the inner wall of the upper closed cover is fixedly connected with an internal fixing ring, the outer wall of the internal fixing groove is provided with a limit sliding disk, the outer wall of the limit sliding disk is fixedly connected with a support rod, and the support rod is fixedly connected with a support axis on the side away from the limit sliding disk. The rotation limit clamping device for a robot arm, by arranging a pair of support buffer mechanisms on the inner walls of the upper closed cover and the lower closed cover, can provide a buffering force for the device during rotation, and can effectively prevent the device from being damaged due to excessive stress during rotation, resulting in the device being unable to work, and the reset spring in the support buffer mechanism can avoid this situation.

Description

Technical Field

[0001] The utility model relates to the technical field of robot arm limiting, in particular to a rotation limiting and pressing device for a robot arm. Background Art

[0002] Robot is the common name for automatic control machines (Robot), which include all machines that simulate human behavior or thoughts and simulate other organisms (such as robot dogs and robot cats). In a narrow sense, there are many classifications and disputes about the definition of robots. Some computer programs are even called robots. In contemporary industry, robots refer to man-made machine devices that can automatically perform tasks, used to replace or assist human work. The ideal high-simulation robot is the product of advanced integrated cybernetics, mechatronics, computers and artificial intelligence, materials science and bionics. The scientific community is currently researching and developing in this direction.

[0003] In the existing structure, when the robot is working, the robot arm needs to be locked for a long time. However, during the locking process of the robot arm, the robot arm is easily damaged at the connection due to excessive squeezing force during the fixing process. Therefore, a rotation limiting and clamping device for the robot arm is proposed. Utility Model Content

[0004] The utility model provides the following technical solutions: a rotation limiting and clamping device for a robot arm, comprising an upper closing cover and a supporting buffer mechanism, the inner wall of the upper closing cover is provided with an internal fixing groove, the inner wall of the upper closing cover is fixedly connected with an internal fixing ring, the outer wall of the internal fixing groove is provided with a limiting sliding disk, the outer wall of the limiting sliding disk is fixedly connected with a supporting rod, the support rod is fixedly connected with a supporting axis on the side away from the limiting sliding disk, the outer wall of the supporting axis is sleeved with a reset spring, the outer wall of the support rod is sleeved with a protective bushing, and the upper closing cover is symmetrical with the lower closing cover.

[0005] As a preferred technical solution of the utility model, the inner wall of the lower closing cover is provided with an internal support mechanism, the outer wall of the internal fixing ring is fixedly connected with connecting rods, and the connecting rods are symmetrically distributed on the outer wall of the internal fixing ring.

[0006] As a preferred technical solution of the utility model, the outer wall of the lower closing cover is fixedly connected to a support platform, the inner wall of the support platform is sleeved with a plurality of fixed bushings, the plurality of fixed bushings are distributed in a circular array on the inner wall of the support platform, and the inner wall of the fixed bushing is sleeved with a telescopic rod.

[0007] As a preferred technical solution of the utility model, the outer wall of the upper closing cover is fixedly connected to an upper fixing ring, the outer wall of the lower closing cover is fixedly connected to a lower fixing ring, the inner wall of the lower fixing ring is sleeved with connecting studs, and the connecting studs are distributed in a circular array on the outer wall of the lower fixing ring.

[0008] As a preferred technical solution of the utility model, the connecting stud passes through the upper closing cover and the lower fixing ring, and the outer wall of the upper closing cover is provided with a hexagonal fixing locking block, and the connecting stud and the hexagonal fixing locking block are fixed by a threaded connection.

[0009] As a preferred technical solution of the utility model, the outer wall of the lower closing cover is fixedly connected to a shaft rod protection platform, the inner wall of the shaft rod protection platform is sleeved with a rotating support shaft, the outer wall of the rotating support shaft is fixedly connected to a bearing limit ring, and the bearing limit ring is fixedly connected to a transmission rod on the side away from the rotating support shaft, and the outer wall of the bearing limit ring is provided with a movable bearing.

[0010] As a preferred technical solution of the utility model, the outer wall of the bearing limit ring is sleeved with a bearing sleeve, the inner wall of the bearing sleeve is sleeved with a plurality of sliding rollers, and the plurality of sliding rollers are distributed on the inner wall of the bearing sleeve in a circular array.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The rotation limiting and clamping device for the robot arm is provided with a pair of supporting and buffering mechanisms on the inner walls of the upper closing cover and the lower closing cover, so that it can provide a buffering force for the device during rotation, and can effectively prevent the device from being damaged due to excessive stress during rotation, resulting in the failure of the device to work. The reset spring in the supporting and buffering mechanism can avoid this situation.

[0013] 2. The rotation limiting and clamping device for the robot arm is provided with multiple layers of symmetrical connecting studs and hexagonal fixed locking blocks on the outside of the device, so that when the device is fixed, the connecting studs and the hexagonal fixed locking blocks can provide effective connecting force to the upper closing cover and the lower closing cover, so that when the device is working, the upper closing cover and the lower closing cover are not easy to separate and fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a rotation limiting and clamping device for a robot arm;

[0015] Figure 2 It is a structural schematic diagram of an axis rod protection platform used in a rotation limiting and clamping device for a robot arm;

[0016] Figure 3It is a structural schematic diagram of a connecting rod used in a rotation limiting and clamping device for a robot arm;

[0017] Figure 4 It is a structural schematic diagram of a support buffer mechanism used in a rotation limiting and clamping device for a robot arm;

[0018] Figure 5 It is a structural schematic diagram of a movable bearing used in a rotation limiting clamping device for a robot arm;

[0019] Figure 6 for Figure 3 A magnified view of the structure at location A.

[0020] In the figure: 1. upper closing cover; 2. upper fixing ring; 3. movable bearing; 31. bearing sleeve; 32. sliding roller; 4. transmission rod; 5. lower closing cover; 6. lower fixing ring; 7. connecting stud; 8. hexagonal fixed locking block; 9. shaft protection platform; 10. internal fixing groove; 11. internal fixing ring; 12. connecting support rod; 13. support buffer mechanism; 131. support axis; 132. protective bushing; 133. support rod; 134. limit sliding plate; 135. reset spring; 14. internal support mechanism; 141. support platform; 142. fixed bushing; 143. telescopic rod; 15. bearing limit ring; 16. rotating support shaft. 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] See also Figure 1-6A rotation limiting and pressing device for a robot arm comprises an upper closing cover 1 and a supporting and buffering mechanism 13. An inner fixing groove 10 is provided on the inner wall of the upper closing cover 1. An inner fixing ring 11 is fixedly connected to the inner wall of the upper closing cover 1. A limiting sliding plate 134 is provided on the outer wall of the limiting sliding plate 134. A supporting rod 133 is fixedly connected to the outer wall of the limiting sliding plate 134. A supporting shaft 131 is fixedly connected to the supporting rod 133 on the side away from the limiting sliding plate 134. A reset spring 135 is sleeved on the outer wall of the supporting shaft 131. A protective bushing 132 is sleeved on the outer wall of the supporting rod 133. The upper closing cover 1 is symmetrical to the lower closing cover 5. The supporting shaft 131 symmetrically distributed in the upper closing cover 1 enables the device to be symmetrical. The lower closure cover 5 is supported in the direction, and the limiting sliding plate 134 will squeeze the supporting rod 133 and the reset spring 135 when subjected to force, so that the equipment can buffer and absorb energy. The inner wall of the lower closure cover 5 is provided with an internal supporting mechanism 14, and the outer wall of the internal fixing ring 11 is fixedly connected with a connecting support rod 12, and the connecting support rod 12 is symmetrically distributed on the outer wall of the internal fixing ring 11, wherein the connecting support rod 12 distributed outside the internal fixing ring 11 in a UI operation can support the connected upper closure cover 1 and the lower closure cover 5, and can avoid direct contact between them causing damage to the upper closure cover 1 and the lower closure cover 5, the outer wall of the lower closure cover 5 is fixedly connected with a supporting platform 141, and the inner wall of the supporting platform 141 is sleeved with a plurality of fixed bushings 142, and the plurality of fixed bushings 14 2 are distributed in a circular array on the inner wall of the support platform 141, and the inner wall of the fixed bushing 142 is sleeved with a telescopic rod 143, wherein the telescopic rod 143 will shrink when squeezed, so that the pressure on the device can be effectively relieved when it is rotating, the outer wall of the upper closing cover 1 is fixedly connected with an upper fixing ring 2, the outer wall of the lower closing cover 5 is fixedly connected with a lower fixing ring 6, the inner wall of the lower fixing ring 6 is sleeved with a connecting stud 7, and the connecting stud 7 is distributed in a circular array on the outer wall of the lower fixing ring 6, the connecting stud 7 penetrates the upper closing cover 1 and the lower fixing ring 6, and the outer wall of the upper closing cover 1 is provided with a hexagonal fixing locking block 8, the connecting stud 7 and the hexagonal fixing locking block 8 are fixed by threaded connection, wherein the connecting stud 7 and the hexagonal fixing locking block 8 are connected by the connecting stud 7 and the hexagonal fixing locking block 8. The threaded connection between the rectangular fixed locking blocks 8 can fix the equipment tightly. At the same time, due to its stability, the upper closing cover 1 and the lower closing cover 5 after connection are not easy to separate. The outer wall of the lower closing cover 5 is fixedly connected with a shaft rod protection platform 9, and the inner wall of the shaft rod protection platform 9 is sleeved with a rotating support shaft 16. The outer wall of the rotating support shaft 16 is fixedly connected with a bearing limiting ring 15, and the bearing limiting ring 15 is fixedly connected with a transmission rod 4 on the side away from the rotating support shaft 16. The outer wall of the bearing limiting ring 15 is provided with a movable bearing 3, and the outer wall of the bearing limiting ring 15 is sleeved with a bearing sleeve 31, and the inner wall of the bearing sleeve 31 is sleeved with a plurality of sliding rollers 32, and the plurality of sliding rollers 32 are distributed on the inner wall of the bearing sleeve 31 in a circular array, wherein,The sliding roller 32 can fix and lubricate the rotating support shaft 16 connected thereto, and the setting of the bearing limit ring 15 can also effectively prevent the position of the equipment from being offset during operation.

[0023] Working principle: when the device needs to be used, the operator installs the device to a suitable position, and the transmission rod 4 will be squeezed downward after being subjected to force, and when the device is subjected to force, the supporting buffer mechanism 13 arranged inside it will be compressed under force, and the connecting studs 7 and hexagonal fixed locking blocks 8 arranged outside the upper closing cover 1 and the lower closing cover 5 can enhance the stability of the device when connected, and can effectively prevent the device from scattering during operation.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotation limiting and clamping device for a robot arm, comprising an upper closing cover (1) and a supporting buffer mechanism (13), characterized in that: The inner wall of the upper closing cover (1) is provided with an internal fixing groove (10), the inner wall of the upper closing cover (1) is fixedly connected with an internal fixing ring (11), the outer wall of the internal fixing groove (10) is provided with a limiting sliding disk (134), the outer wall of the limiting sliding disk (134) is fixedly connected with a support rod (133), the support rod (133) is fixedly connected with a support shaft (131) on a side away from the limiting sliding disk (134), the outer wall of the support shaft (131) is sleeved with a return spring (135), the outer wall of the support rod (133) is sleeved with a protective bushing (132), and the upper closing cover (1) is symmetrical with the lower closing cover (5).

2. The rotation limiting and clamping device for a robot arm according to claim 1 is characterized in that: The inner wall of the lower closing cover (5) is provided with an internal support mechanism (14), the outer wall of the internal fixing ring (11) is fixedly connected with connecting rods (12), and the connecting rods (12) are symmetrically distributed on the outer wall of the internal fixing ring (11).

3. The rotation limiting and clamping device for a robot arm according to claim 2 is characterized in that: The outer wall of the lower closing cover (5) is fixedly connected to a support platform (141), the inner wall of the support platform (141) is sleeved with a plurality of fixed bushings (142), the plurality of fixed bushings (142) are distributed in a circular array on the inner wall of the support platform (141), and the inner wall of the fixed bushing (142) is sleeved with a telescopic rod (143).

4. The rotation limiting and clamping device for a robot arm according to claim 1 is characterized in that: The outer wall of the upper closing cover (1) is fixedly connected to an upper fixing ring (2), the outer wall of the lower closing cover (5) is fixedly connected to a lower fixing ring (6), the inner wall of the lower fixing ring (6) is sleeved with connecting studs (7), and the connecting studs (7) are distributed in a circumferential array on the outer wall of the lower fixing ring (6).

5. The rotation limiting and clamping device for a robot arm according to claim 4 is characterized in that: The connecting stud (7) passes through the upper closing cover (1) and the lower fixing ring (6), and the outer wall of the upper closing cover (1) is provided with a hexagonal fixing locking block (8), and the connecting stud (7) and the hexagonal fixing locking block (8) are fixed by a threaded connection.

6. The rotation limiting and clamping device for a robot arm according to claim 1, characterized in that: The outer wall of the lower closing cover (5) is fixedly connected to a shaft protection platform (9), the inner wall of the shaft protection platform (9) is sleeved with a rotating support shaft (16), the outer wall of the rotating support shaft (16) is fixedly connected to a bearing limiting ring (15), and the bearing limiting ring (15) is fixedly connected to a transmission rod (4) on a side away from the rotating support shaft (16), and the outer wall of the bearing limiting ring (15) is provided with a movable bearing (3).

7. The rotation limiting and clamping device for a robot arm according to claim 6 is characterized in that: The outer wall of the bearing limiting ring (15) is sleeved with a bearing sleeve (31), the inner wall of the bearing sleeve (31) is sleeved with a plurality of sliding rollers (32), and the plurality of sliding rollers (32) are distributed on the inner wall of the bearing sleeve (31) in a circular array.

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