A shock absorbing device for a mechanical arm reducer

Abstract

The present invention discloses a shock absorbing device of a mechanical arm reducer, comprising a connecting column and a rotating column of the mechanical arm, a rotating column is rotatably installed on one side of the upper end of the connecting column, a reducer main body is provided at the connection between the connecting column and the rotating column, and also comprises a fixing ring and a shock absorbing ring, the fixing ring is arranged on the outer wall of the connecting column; the fixing ring comprises a supporting clamping ring and a connecting clamping ring, the supporting clamping ring and the connecting clamping ring are combined to form an annular clamping ring, and the annular clamping ring is fixedly sleeved on the outer wall of the connecting column; the shock absorbing ring is arranged on the outer wall of the reducer main body between the connecting column and the rotating column; the shock absorbing ring comprises a mounting strip, a fixing strip and a clamping strip, the mounting strip and the fixing strip are combined to form an annular structure, and the annular structure is movably sleeved on the outer wall of the reducer main body between the connecting column and the rotating column; a plurality of first elastic members for providing elastic force to the clamping strip are fixedly installed on the inner side walls of the mounting strip and the fixing strip, and the plurality of first elastic members are respectively fixedly connected to the clamping strips.

Description

Technical Field

[0001] The present invention relates to the technical field related to a manipulator reducer, and in particular to a shock absorbing device for a manipulator reducer. Background Art

[0002] A robotic arm is an automated mechanical device that can receive instructions and accurately locate a point in three-dimensional space to perform operations. It is mostly used in industries such as industry, medicine, military, and space exploration. Robotic arms are divided into multi-joint robotic arms, rectangular coordinate robotic arms, spherical coordinate robotic arms, polar coordinate robotic arms, and cylindrical coordinate robotic arms according to their different structural forms. Most of them are composed of two or more joints connected by rotation.

[0003] To reduce the speed of rotation between the joints of the robotic arm, thereby increasing the torque output and reducing the load, a reducer is installed between each joint of the robotic arm. A reducer is a component composed of gears, worm gears, and other gear-worm gears within a rigid housing. It reduces the speed of rotation between the joints of the robotic arm.

[0004] However, the existing robotic arm reducer has gaps in its internal components, which will cause vibration when the reducer is running, thereby affecting the accuracy of the robotic arm operation. Summary of the Invention

[0005] In order to solve the above technical problems existing in the prior art, the present invention provides a shock absorbing device for a robot arm reducer.

[0006] The technical solution adopted in the present invention is:

[0007] A shock absorbing device for a mechanical arm speed reducer comprises a connecting column (1) and a rotating column (2) of the mechanical arm, wherein the connecting column (1) is rotatably mounted on a base of the mechanical arm, the rotating column (2) is rotatably mounted on one side of the upper end of the connecting column 1, a speed reducer body (3) is provided at the connection between the connecting column (1) and the rotating column (2), and the connecting column (1) performs speed reduction transmission on the rotating column (2) through the speed reducer body (3); the device is characterized in that it further comprises a fixing ring (4) and a shock absorbing ring (5), wherein:

[0008] The fixing ring (4) is arranged on the outer side wall of the connecting column (1); the fixing ring (4) comprises a supporting snap ring (41) and a connecting snap ring (42); the supporting snap ring (41) and the connecting snap ring (42) are combined to form an annular snap ring, and the annular snap ring is fixedly sleeved on the outer side wall of the connecting column (1);

[0009] The shock-absorbing ring (5) is arranged on the outer wall of the reducer body (3) between the connecting column (1) and the rotating column (2); the shock-absorbing ring (5) comprises a mounting bar (51), a fixing bar (52) and a clamping bar (53); the mounting bar (51) and the fixing bar (52) are combined to form an annular structure, and the annular structure is movably sleeved on the outer wall of the reducer body (3) between the connecting column (1) and the rotating column (2); a plurality of first elastic members (54) for providing elastic force to the clamping bar (53) are fixedly installed on the inner side walls of the mounting bar (51) and the fixing bar (52), and the plurality of first elastic members (54) are respectively fixedly connected to the clamping bar (53).

[0010] Furthermore, it also includes a support mechanism (6), the support mechanism (6) includes a support rod (61) and a second elastic member (62), a slide groove matching the support rod (61) is opened on one side of the upper end of the support clamp (41), the second elastic member (62) is fixedly installed in the slide groove and the lower end of the second elastic member (62) is fixed at the bottom of the slide groove, the support rod (61) is slidably installed in the slide groove, and the lower end of the support rod (61) is fixedly connected to the upper end of the second elastic member (62), and the upper end of the support rod (61) is fixedly connected to the lower end of the mounting bar (51).

[0011] Furthermore, it also includes a limiting mechanism (7); a side strip (411) is fixedly connected to the position of the slide groove on the outer wall of the support clamp (41), and an inner cavity is opened in the side strip (411), and the inner cavity is communicated with the slide groove; the limiting mechanism (7) includes a control plate (71) and a screw rod (72), the screw rod (72) is rotatably installed in the inner cavity of the side strip (411), the control plate (71) is threadedly sleeved on the screw rod (72), and the control plate (71) slides in the inner cavity of the side strip (411) by rotating the screw rod (72); an adjustment plate (611) is fixedly connected to the lower side wall of the support rod (61), and the control plate (71) is located above the adjustment plate (611) and contacts the upper end of the adjustment plate (611).

[0012] Furthermore, both sides of the supporting clamp (41) and the connecting clamp (42) are fixedly connected with a first side plate (43), and the first side plate (43) of the supporting clamp (41) is threadedly connected to the first side plate (43) of the connecting clamp (42).

[0013] Furthermore, both sides of the installation bar (51) and the fixing bar (52) are fixedly connected with a second side plate (56), and the second side plate (56) of the installation bar (51) is threadedly connected to the second side plate (56) of the fixing bar (52).

[0014] Furthermore, a plurality of limiting rods (55) are fixedly connected to the side walls of the clamping strip (53) facing the installation strip (51) and the fixing strip (52), and a plurality of limiting grooves matching the limiting rods (55) are respectively provided on the side walls of the installation strip (51) and the fixing strip (52) facing the clamping strip (53).

[0015] Furthermore, a rubber strip (531) for flexible contact is fixedly connected to both the inner side wall and the outer side wall of the clamping strip (53).

[0016] Furthermore, a plurality of rolling balls (57) are rotatably mounted in the mounting bar (51) and the fixing bar (52) for facilitating the rotation of the rotating column (2).

[0017] Furthermore, the invention also includes a cooling component (9), wherein the cooling component (9) includes an oil delivery hose (91), the oil delivery hose (91) is fixed to the upper end of the connecting column (1), a cooling groove (93) with an annular structure is provided on the outer wall of the connecting column (1), and the end of the oil delivery hose (91) extends into the interior of the cooling groove (93), an oil barrel (92) is fixedly installed on the upper surface of the lower end of the connecting column (1), the lower end of the oil delivery hose (91) is fixedly connected to the upper inner wall of the oil barrel (92), a rectangular oil storage chamber (95) is provided on the right side of the inside of the oil barrel (92), lubricating oil (96) is stored in the oil storage chamber (95), and the inner wall of the oil storage chamber (95) is horizontally slidably connected to an inclined oil delivery plate (94).

[0018] Furthermore, the oil barrel (92) is connected to an oil pressure assembly (8), and the oil pressure assembly (8) includes a movable rod (82), and an L-shaped movable rod (82) is vertically provided at the upper left end of the oil barrel (92), and the L-shaped movable rod (82) is slidably connected to the upper left end of the oil barrel (92); a ring (81) is fixed to the upper end of the movable rod (82), and the ring (81) is fixed on the outer wall of the support rod (61), and the lower end of the movable rod (82) extends into the interior of the oil storage barrel (92), and the lower end of the movable rod (82) is rotatably connected to one end of the rotating shaft (84), and the other end of the rotating shaft (84) is rotatably connected to the connecting rod (86), and the other end of the connecting rod (86) is rotatably connected to the oil delivery plate (94); a balancing hole (86) is provided through the inner wall of the left side of the oil barrel (92).

[0019] Compared with the prior art, the beneficial effects of the present invention are embodied in:

[0020] The present invention installs the shock-absorbing device on the robotic arm through a fixing ring, clamps the main body of the reducer through the shock-absorbing ring, and provides elastic force to the clamping strip through the first elastic member, thereby stabilizing the main body and performing a shock-absorbing effect on the main body, thereby solving the problem that the existing robotic arm reducer will generate vibration during the operation of the reducer, thereby affecting the accuracy of the robotic arm operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a partial structure of a robotic arm according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the shock absorbing device according to an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the overall structure of the shock absorbing device according to an embodiment of the present invention;

[0024] Figure 4 A cross-sectional view of a fixing ring according to an embodiment of the present invention;

[0025] Figure 5 For the embodiment of the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 A cross-sectional view of a support snap ring according to an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of a connecting column and a cooling assembly according to an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the internal structure of an oil barrel according to an embodiment of the present invention.

[0029] In the figure: 1. connecting column; 2. rotating column; 3. reducer body; 4. fixing ring; 41. supporting snap ring; 411. side strip; 42. connecting snap ring; 43. first side plate; 5. shock-absorbing ring; 51. mounting strip; 52. fixing strip; 53. clamping strip; 531. rubber strip; 54. first elastic member; 55. limiting rod; 56. second side plate; 57. rolling ball; 6. supporting mechanism; 61. supporting rod; 611. adjusting plate; 62. second elastic member; 7. limiting mechanism; 71. control plate; 72. screw rod; 8. oil pressure assembly; 81. collar; 82. movable rod; 83. oil cover; 84. rotating shaft; 86. connecting rod; 86. balancing hole; 9. cooling assembly; 91. oil hose; 92. oil drum; 93. cooling trough; 94. oil delivery plate; 95. oil storage chamber; 96. lubricating oil. DETAILED DESCRIPTION

[0030] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not used to limit the embodiment of the present invention.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0033] refer to Figures 1 to 8 The shock absorbing device of the robot arm reducer of the present invention includes a connecting column 1 of the robot arm.

[0034] The connecting column 1 is rotatably mounted on the base of the robotic arm, and a rotating column 2 is rotatably mounted on one side of the upper end of the connecting column 1 .

[0035] In order to reduce the speed of the rotating column 2, a mounting groove is provided on one side of the upper end of the connecting column 1, and a main body 3 of the reducer is fixedly installed in the mounting groove.

[0036] Among them, the main body 3 includes a shell and an output shaft, and multiple components are arranged in the shell. One end of the output shaft of the main body 3 is rotatably connected in the shell and connected to the components in the shell. The shell is fixedly installed in the mounting groove of the connecting column 1, and the output shaft is fixedly inserted into the side of one end of the rotating column 2, so that the connecting column 1 can reduce the speed of the rotating column 2 through the main body 3. The main body 3 of the reducer is mostly used in the mechanical industry and is an existing technology.

[0037] In order to reduce the vibration of the running reducer, the connecting column 1 is provided with a vibration reduction device.

[0038] The shock absorbing device includes a fixing ring 4 and a shock absorbing ring 5 .

[0039] The fixing ring 4 includes a supporting snap ring 41 and a connecting snap ring 42. Figure 3 As shown, the support clamp 41 and the connecting clamp 42 are combined into a circular ring structure, and the support clamp 41 and the connecting clamp 42 are installed on both sides of the connecting column 1. By connecting the support clamp 41 and the connecting clamp 42, the fixing ring 4 is installed on the outer wall of the connecting column 1.

[0040] In order to facilitate the connection between the supporting snap ring 41 and the connecting snap ring 42 , first side plates 43 are fixedly connected to both sides of the supporting snap ring 41 and the connecting snap ring 42 .

[0041] Among them, the first side plate 43 is provided with a first through hole. When the supporting clamp 41 and the connecting clamp 42 are combined into a circular ring structure, the first side plates 43 of the supporting clamp 41 and the connecting clamp 42 are aligned and fitted with each other, and the supporting clamp 41 and the first side plates 43 of the connecting clamp 42 can be threadedly connected through the first through hole.

[0042] By connecting the supporting clamp ring 41 and the connecting clamp ring 42, the friction coefficient between the inner wall of the fixing ring 4 and the outer wall of the connecting column 1 is increased, and the fixing ring 4 can be fixed to the outer wall of the connecting column 1 through damping.

[0043] The shock absorbing ring 5 includes a mounting strip 51, a fixing strip 52 and a clamping strip 53. Figure 4 As shown, the mounting bar 51 and the fixing bar 52 are combined into an annular structure with a circular hole in the middle. The outer shell wall of the main body 3 is exposed from the mounting groove of the connecting column 1, and the mounting bar 51 and the fixing bar 52 are located on both sides of the part of the main body 3 exposed from the mounting groove.

[0044] Among them, the second side plates 56 are fixedly connected to both sides of the mounting bar 51 and the fixing bar 52, and the second side plates 56 are provided with a second through hole. When the mounting bar 51 and the fixing bar 52 are combined into a ring structure, the second side plates 56 of the mounting bar 51 and the fixing bar 52 are aligned and fit with each other, and the second side plates 56 of the mounting bar 51 and the fixing bar 52 can be threadedly connected through the first through hole.

[0045] Among them, the installation bar 51 and the fixing bar 52 are both provided with slots, and the first elastic member 54 is fixedly installed in the slots. The clamping strips 53 are preferably provided in a plurality of numbers, and the clamping strips 53 are fixedly connected to one end of the first elastic member 54. The first elastic member 54 is preferably a spring. Of course, it is not limited to a spring, and elastic components such as metal shrapnel can also be used to provide elastic force to the clamping strip 53 through the first elastic member 54.

[0046] Among them, after the mounting strip 51 and the fixing strip 52 are combined into an annular structure, the first elastic member 54 provides elastic force to the clamping strip 53 toward the main body 3, and then the main body 3 is clamped by multiple clamping strips 53, thereby fixing the shock-absorbing ring 5 on the outer wall of the main body 3 exposed from the mounting groove of the connecting column 1.

[0047] In order to stabilize the movement of the clamping bar 53 , a side of the clamping bar 53 facing the installation bar 51 or the fixing bar 52 is fixedly connected to a limiting rod 55 .

[0048] Among them, the installation bar 51 and the fixing bar 52 are provided with limiting grooves, and a plurality of limiting rods 55 are slidably installed in the limiting grooves of the installation bar 51 and the fixing bar 52 respectively, and then the movement of the clamping bar 53 is limited by the limiting rods 55, so that the clamping bar 53 can slide stably.

[0049] In order to protect the clip 53 and make the clip 53 flexibly contact the outer wall of the main body 3 and the fixing strip 52 , adhesive strips 531 are fixedly connected to both sides of the clip 53 .

[0050] Among them, the rubber strip 531 is preferably made of rubber material. Of course, it is not limited to rubber material, and plastic, latex and other materials can also be used. The rubber strip 531 allows the clamping strip 53 to be flexibly in contact with the outer wall of the main body 3 and the fixing strip 52 to prevent the clamping strip 53 from being worn, and the rubber strip 531 increases the friction coefficient with the outer wall of the main body 3.

[0051] In order to connect the fixing ring 4 and the shock-absorbing ring 5 , a supporting mechanism 6 is provided between the fixing ring 4 and the shock-absorbing ring 5 .

[0052] Among them, the support mechanism 6 includes a support rod 61 and a second elastic member 62. A sliding groove is provided at the upper end of the support clamp 41. The support rod 61 is slidably installed in the sliding groove of the support clamp 41. The second elastic member 62 is fixedly installed in the sliding groove of the support clamp 41, and one end of the second elastic member 62 is fixedly connected to one end of the support rod 61. The second elastic member 62 preferably adopts a spring, and the second elastic member 62 provides an upward elastic force to the support rod 61, so that the support rod 61 extends from the sliding groove of the support clamp 41.

[0053] Among them, the upper end of the support rod 61 is fixedly connected to the lower end of the mounting bar 51, and the second elastic member 62 provides an upward elastic force to the support rod 61, and then the mounting bar 51 is supported by the support rod 61, that is, the mounting bar 51 and the fixing bar 52 are fixed, and the shock-absorbing ring 5 can be used to reduce the shock of the main body 3, thereby stabilizing the main body 3.

[0054] In order to facilitate the rotation of the rotating column 2 on one end of the connecting column 1, a rolling ball 57 is rotatably installed in the installation bar 51 and the fixing bar 52.

[0055] Among them, the ball 57 is preferably set in multiple numbers, and both sides of the ball 57 are exposed from both sides of the mounting bar 51 and the fixing bar 52, and after the shock-absorbing ring 5 is installed on the main body 3, the two ends of the ball 57 contact the connecting column 1 and the rotating column 2, and then the ball 57 facilitates the rotation of the rotating column 2 on the upper end side of the connecting column 1.

[0056] In order to facilitate the installation of the fixing ring 4 , the supporting clamping ring 41 is provided with a limiting mechanism 7 .

[0057] The limiting mechanism 7 includes a control plate 71 and a screw rod 72 .

[0058] Among them, the outer wall of the support clamp 41 is fixedly connected with the edge strip 411, and an inner cavity is opened in the edge strip 411. The inner cavity of the edge strip 411 is connected to the sliding groove of the support clamp 41. The screw rod 72 is rotatably installed in the inner cavity of the edge strip 411, and the control plate 71 is threadedly connected to the screw rod 72. The control plate 71 slides in the inner cavity of the edge strip 411 by rotating the screw rod 72.

[0059] Among them, an adjustment plate 611 is fixedly connected to the lower outer wall of the support rod 61, and the adjustment plate 611 slides at the connection between the inner cavity of the edge strip 411 and the slide groove of the support clamping ring 41. The control plate 71 is located above the adjustment plate 611. When the screw rod 72 rotates, the control plate 71 can be driven to move downward in the inner cavity of the edge strip 411. The control plate 71 fits the adjustment plate 611, driving the adjustment plate 611 to move downward, that is, driving the support rod 61 to shrink into the slide groove of the support clamping ring 41.

[0060] During installation, connect the mounting bar 51 with the fixing bar 52 so that the shock-absorbing ring 5 is installed on the outer wall of the main body 3. Then, the connecting clip 42 can be engaged with the outer wall of the connecting column 1 to connect the connecting clip 42 with the supporting clip 41. By rotating the screw rod 72, the position of the fixing ring 4 on the outer wall of the connecting column 1 can be adjusted. The fixing ring 4 can be adapted to connecting columns 1 of different lengths through the limiting mechanism 7.

[0061] In order to cool and lubricate the space between the clamping strip 53 and the connecting column 1, a cooling component 9 is provided on the outer wall of the connecting column 1. The cooling component 9 includes an oil hose 91. The oil hose 91 is fixed to the upper end of the connecting column 1 and the end thereof extends into the inner wall. A cooling groove 93 with an annular structure is provided on the outer wall of the connecting column 1. The end of the oil hose 91 extends into the interior of the cooling groove 93. An oil barrel 92 is fixedly installed on the upper surface of the lower end of the connecting column 1. The lower end of the oil hose 91 is fixedly connected to the inner wall of the upper end of the oil barrel 92. A rectangular oil storage chamber 95 is provided on the right side of the oil barrel 92. The oil storage chamber 95 stores oil. There is lubricating oil 96, and the inner wall of the oil storage chamber 95 is horizontally slidably connected to an inclined oil delivery plate 94; when working, the oil delivery plate 94 in the oil storage chamber 95 slides to the right, squeezing the lubricating oil 96 in the oil storage chamber 95 to the right and pushing it into the oil delivery hose 91, and then the lubricating oil 96 is squeezed into the cooling groove 93 by the oil delivery hose 91 and contacts the clamping strip 53 and the connecting column 1, and the gap between the clamping strip 53 and the connecting column 1 is lubricated and cooled, so that the clamping strip 53 can better play a buffering and shock-absorbing effect, and the lubricating oil 96 fills the space between the two, which also plays a buffering and shock-absorbing effect.

[0062] In order to realize the sliding extrusion of lubricating oil by the oil delivery plate 94, the oil barrel 92 is connected to the oil pressure assembly 8, which includes a movable rod 82. The upper end of the left side of the oil barrel 92 is vertically slidably connected to the movable rod 82 of L-shaped structure. The upper end of the movable rod 82 is fixed with a collar 81. The collar 81 is fixed to the outer wall of the support rod 61. The lower end of the movable rod 82 extends into the interior of the oil storage barrel 92. The lower end of the movable rod 82 is rotatably connected to the rotating shaft 84. One end of the rotating shaft 84 is rotatably connected to the connecting rod 86. The connecting rod 86 is connected to the connecting rod 86. 6 is rotatably connected to the oil delivery plate 94, and a balancing hole 86 is provided on the left inner wall of the oil barrel 92; when the reducer vibrates up and down, the support rod 61 and the second elastic member 62 move up and down to generate elastic force and be buffered and shock-absorbed, the movement of the support rod 61 drives the collar 81 and the movable rod 82 to move downward, so that the connecting rod 86 moves. Under the action of the connecting rod 86, the oil delivery plate 94 is pushed to slide to the right, thereby pressing the lubricating oil 96 into the oil delivery hose 91 until it enters the cooling tank 93 for cooling and lubrication.

[0063] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A shock absorbing device for a reducer of a robotic arm, comprising a connecting column (1) and a rotating column (2) of the robotic arm, wherein the connecting column (1) is rotatably mounted on a base of the robotic arm, and the rotating column (2) is rotatably mounted on one side of the upper end of the connecting column 1, and a reducer body (3) is provided at the connection between the connecting column (1) and the rotating column (2), and the connecting column (1) performs a reduction transmission on the rotating column (2) through the reducer body (3); characterized in that: It also includes a fixing ring (4) and a shock-absorbing ring (5), wherein: The fixing ring (4) is arranged on the outer side wall of the connecting column (1); the fixing ring (4) comprises a supporting snap ring (41) and a connecting snap ring (42); the supporting snap ring (41) and the connecting snap ring (42) are combined to form an annular snap ring, and the annular snap ring is fixedly sleeved on the outer side wall of the connecting column (1); The shock-absorbing ring (5) is arranged on the outer side wall of the reducer body (3) between the connecting column (1) and the rotating column (2); the shock-absorbing ring (5) comprises a mounting strip (51), a fixing strip (52) and a clamping strip (53); the mounting strip (51) and the fixing strip (52) are combined to form an annular structure, and the annular structure is movably sleeved on the outer side wall of the reducer body (3) between the connecting column (1) and the rotating column (2); a plurality of first elastic members (54) for providing elastic force to the clamping strip (53) are fixedly mounted on the inner side walls of the mounting strip (51) and the fixing strip (52), and the plurality of first elastic members (54) are respectively fixedly connected to the clamping strip (53); The support mechanism (6) further comprises a support rod (61) and a second elastic member (62), a slide groove matching the support rod (61) is provided on one side of the upper end of the support snap ring (41), the second elastic member (62) is fixedly mounted in the slide groove and the lower end of the second elastic member (62) is fixedly mounted at the bottom of the slide groove, the support rod (61) is slidably mounted in the slide groove, and the lower end of the support rod (61) is fixedly connected to the upper end of the second elastic member (62), and the upper end of the support rod (61) is fixedly connected to the lower end of the mounting bar (51); The invention also includes a limiting mechanism (7); a side strip (411) is fixedly connected to the position of the slide groove on the outer wall of the support clamp (41); an inner cavity is opened in the side strip (411), and the inner cavity is communicated with the slide groove; the limiting mechanism (7) includes a control plate (71) and a screw rod (72); the screw rod (72) is rotatably installed in the inner cavity of the side strip (411); the control plate (71) is threadedly sleeved on the screw rod (72), and the control plate (71) slides in the inner cavity of the side strip (411) by rotating the screw rod (72); an adjustment plate (611) is fixedly connected to the lower side wall of the support rod (61); the control plate (71) is located above the adjustment plate (611) and contacts the upper end of the adjustment plate (611).

2. The shock absorbing device of a manipulator reducer according to claim 1, characterized in that: Both sides of the supporting clamp ring (41) and the connecting clamp ring (42) are fixedly connected with a first side plate (43), and the first side plate (43) of the supporting clamp ring (41) is threadedly connected to the first side plate (43) of the connecting clamp ring (42).

3. The shock absorbing device of a robot arm reducer according to claim 1, characterized in that: Second side plates (56) are fixedly connected to both sides of the installation bar (51) and the fixing bar (52), and the second side plate (56) of the installation bar (51) is threadedly connected to the second side plate (56) of the fixing bar (52).

4. The shock absorbing device of a robot arm reducer according to claim 1, characterized in that: A plurality of limiting rods (55) are fixedly connected to the side walls of the clamping strip (53) facing the installation strip (51) and the fixing strip (52), and a plurality of limiting grooves matching the limiting rods (55) are respectively provided on the side walls of the installation strip (51) and the fixing strip (52) facing the clamping strip (53).

5. The shock absorbing device of a mechanical arm reducer according to claim 4, characterized in that: The inner side wall and the outer side wall of the clamping strip (53) are both fixedly connected with a rubber strip (531) for flexible contact.

6. The shock absorbing device of a robot arm reducer according to claim 3, characterized in that: A plurality of rolling balls (57) for facilitating the rotation of the rotating column (2) are rotatably mounted in the mounting bar (51) and the fixing bar (52).

7. The shock absorbing device of a manipulator reducer according to any one of claims 1 to 6, characterized in that: The cooling assembly (9) further comprises an oil delivery hose (91), the oil delivery hose (91) being fixed to the upper end of the connecting column (1), a cooling groove (93) with an annular structure being provided on the outer wall of the connecting column (1), the end of the oil delivery hose (91) extending into the interior of the cooling groove (93), an oil barrel (92) being fixedly mounted on the upper surface of the lower end of the connecting column (1), the lower end of the oil delivery hose (91) being fixedly connected to the inner wall of the upper end of the oil barrel (92), a rectangular oil storage chamber (95) being provided on the right side of the interior of the oil barrel (92), the oil storage chamber (95) storing lubricating oil (96), and the inner wall of the oil storage chamber (95) being horizontally slidably connected to an inclined oil delivery plate (94).

8. The shock absorbing device of a robot arm reducer according to claim 7, characterized in that: The oil barrel (92) is connected to an oil pressure assembly (8), and the oil pressure assembly (8) includes a movable rod (82). An L-shaped movable rod (82) is vertically provided at the upper left end of the oil barrel (92), and the L-shaped movable rod (82) is slidably connected to the upper left end of the oil barrel (92); a collar (81) is fixed to the upper end of the movable rod (82), and the collar (81) is sleeved and fixed on the outer wall of the support rod (61); the lower end of the movable rod (82) extends into the interior of the oil storage barrel (92), and the lower end of the movable rod (82) is rotatably connected to one end of the rotating shaft (84), the other end of the rotating shaft (84) is rotatably connected to the connecting rod (85), and the other end of the connecting rod (85) is rotatably connected to the oil delivery plate (94); a balancing hole (86) is provided through the inner wall of the left side of the oil barrel (92).

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