Laboratory mechanical arm base capable of flexibly balancing weight

Abstract

The utility model relates to the technical field of mechanical arm accessories, in particular to a laboratory mechanical arm base capable of flexibly balancing weights, which comprises a supporting seat, connecting plates are fixedly connected to the front side, the rear side, the left side and the right side of the supporting seat, a supporting plate is fixedly welded to the bottom of each connecting plate, and an expansion assembly is fixedly mounted at the bottom of the supporting seat. The problems that a balance weight component is arranged in the device, the device needs to be unfolded when a balance weight is replaced, operation is tedious, the supporting area is of a fixed structure, and the gravity center of a mechanical arm is unstable in the working process are solved, the overall supporting area of the device is changed, the stable supporting effect is achieved, and the device can be folded when not used and is convenient to use. And the occupied space is reduced, the practicability of the device is improved, balance weight at different positions can be carried out, the number of the first balance weight columns and the number of the second balance weight columns can be changed according to requirements, and therefore the flexible balance weight effect is achieved, and the device can adapt to mechanical arms with different weights.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arm accessories, in particular to a laboratory mechanical arm base which can be flexibly weighted. Background Art

[0002] A robotic arm refers to a complex system with high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion protection, and other fields. Robotic arms are also commonly used in laboratories. When installing a robotic arm, a robotic arm base is usually used.

[0003] After searching, the patent number is CN220297155U, and the name is a utility model of a laboratory robotic arm base with flexible counterweight, including a mounting shell. Through research and analysis, it is found that although the device can facilitate the adjustment of the horizontal situation of the mounting plate, can facilitate the operation of the robotic arm, can facilitate the adjustment of the position of the mounting rod, and facilitate the installation of robotic arms of different sizes to the surface of the mounting rod, but, to a certain extent, there are still the following disadvantages.

[0004] For example, the counterweight component is set inside the device, and the device needs to be opened when replacing the counterweight, which is cumbersome to operate. In addition, the support area is a fixed structure, and the center of gravity of the robotic arm is unstable during operation. Although the counterweight is applied, it may still shake, affecting its normal operation. In order to solve the above technical problems, we designed a laboratory robotic arm base with flexible counterweight. Utility Model Content

[0005] The purpose of the utility model is to provide a laboratory robot arm base with flexible counterweight, which has the advantages of convenient counterweight adjustment and adjustable support area, and solves the problem that the counterweight component is arranged inside the device, the device needs to be opened when replacing the counterweight, and the operation is cumbersome, and the support area is a fixed structure, and the center of gravity of the robot arm is unstable during operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laboratory robot arm base with flexible counterweight, comprising a support seat, the left and right sides of the front and rear sides of the support seat are fixedly connected with connecting plates, the bottom of the connecting plate is fixedly welded with a support plate, the bottom of the support seat is fixedly installed with an extension component, the center of the top of the support seat is fixedly installed with a counterweight component, the counterweight component comprises a counterweight block, the center of the top of the counterweight block is fixedly connected with a mounting platform, the left and right sides of the top of the mounting platform are fixedly connected with mounting plates, and the front and rear sides of the counterweight block are fixedly connected with a covering component.

[0007] Preferably, the expansion component includes a mounting seat, which is fixedly welded to the center of the bottom of the support seat, and the inner cavity of the support seat is rotatably connected to a bidirectional threaded rod through a bearing.

[0008] Preferably, threaded sleeves are provided on both sides of the left and right sides of the surface of the bidirectional threaded rod, and connecting brackets are fixedly welded on the front and rear sides of the threaded sleeve. The end of the connecting bracket away from the threaded sleeve passes through the outside of the support seat and is fixedly connected to the installation column.

[0009] Preferably, an auxiliary disc is fixedly welded to the bottom of the mounting column, a counterweight column is placed in the inner cavity of the auxiliary disc, and the left and right sides of the bidirectional threaded rod respectively penetrate to the left and right sides of the support seat and are fixedly connected with a rotating handle.

[0010] Preferably, the counterweight block is fixedly connected to the center of the top of the support seat, and a mounting groove is provided around the outer ring of the top of the counterweight block, and a second counterweight column is placed in the inner cavity of the mounting groove.

[0011] Preferably, the covering assembly includes a movable frame, which is fixedly welded to the top of the front and rear sides of the counterweight block respectively, and a shielding plate is movably installed on the surface of the movable frame, a receiving groove is provided at the bottom of the shielding plate, and a torsion spring is arranged inside the movable frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model rotates the bidirectional threaded rod to move the threaded sleeve on its surface under the action of the thread, so that the connecting bracket is extended to different positions, thereby changing the positions of the mounting column and the auxiliary disc, so that the overall supporting area of ​​the device is changed to achieve a stable support effect, and when not in use, it can be folded up to reduce the occupied space and improve the practicality of the device.

[0014] 2. The utility model can perform counterweighting at different positions by applying counterweight column 1 inside the mounting column and counterweight column 2 inside the mounting groove, and can change the number of counterweight column 1 and counterweight column 2 according to needs, thereby achieving a flexible counterweighting effect and being able to adapt to the use of robotic arms of different weights. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0017] Figure 3 It is a three-dimensional schematic diagram of the cover assembly and the counterweight assembly of the utility model in the unfolded state.

[0018] In the figure: 1. support seat; 2. connecting plate; 3. support plate; 4. counterweight assembly; 41. counterweight block; 42. mounting slot; 43. counterweight column two; 5. extension assembly; 51. bidirectional threaded rod; 52. connecting bracket; 53. mounting column; 54. auxiliary disc; 55. counterweight column one; 56. mounting seat; 57. threaded sleeve; 6. cover assembly; 61. movable frame; 62. shielding plate; 63. receiving slot; 7. mounting table; 8. mounting plate. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 3 A laboratory robot arm base with flexible counterweight, comprising a support base 1, a connecting plate 2 is fixedly connected to the left and right sides of the front and rear sides of the support base 1, a supporting plate 3 is fixedly welded to the bottom of the connecting plate 2, an extension component 5 is fixedly installed at the bottom of the support base 1, a counterweight component 4 is fixedly installed at the center of the top of the support base 1, the counterweight component 4 comprises a counterweight block 41, a mounting platform 7 is fixedly connected to the center of the top of the counterweight block 41, a mounting plate 8 is fixedly connected to the left and right sides of the top of the mounting platform 7, and a covering component 6 is fixedly connected to the front and rear sides of the counterweight block 41;

[0020] See also Figure 1 and Figure 2 The expansion assembly 5 includes a mounting seat 56. By setting the mounting seat 56, the bidirectional threaded rod 51 can be supported so that it will not shake during rotation. The mounting seat 56 is fixedly welded to the center of the bottom of the support seat 1. The inner cavity of the support seat 1 is rotatably connected to the bidirectional threaded rod 51 through a bearing;

[0021] See also Figure 2 , both sides of the surface of the bidirectional threaded rod 51 are threadedly sleeved with threaded sleeves 57, and the front and rear sides of the threaded sleeve 57 are fixedly welded with connecting brackets 52, and the end of the connecting bracket 52 away from the threaded sleeve 57 penetrates the outside of the support seat 1 and is fixedly connected with a mounting column 53. By setting the mounting column 53, the counterweight column 55 can be accommodated and installed, and it can be disassembled and stored when the counterweight is not needed;

[0022] See also Figure 1 An auxiliary disc 54 is fixedly welded to the bottom of the mounting column 53, a counterweight column 55 is placed in the inner cavity of the auxiliary disc 54, and the left and right sides of the bidirectional threaded rod 51 respectively penetrate the left and right sides of the support seat 1 and are fixedly connected with a rotating handle;

[0023] See also Figure 3 The counterweight block 41 is fixedly connected to the center of the top of the support seat 1. The outer ring of the top of the counterweight block 41 is surrounded by a mounting groove 42. The inner cavity of the mounting groove 42 is provided with a counterweight column 43. The counterweight column 1 55 and the counterweight column 43 are both lead blocks, and have the same shape and size.

[0024] See also Figure 1 and Figure 3 The covering assembly 6 includes a movable frame 61, which is fixedly welded to the top of the front and rear sides of the counterweight block 41 respectively. A shielding plate 62 is movably installed on the surface of the movable frame 61, and a receiving groove 63 is provided at the bottom of the shielding plate 62. A torsion spring is arranged inside the movable frame 61, and the torsion spring can make the movable frame 61 stably shield the top of the counterweight column 43. After the movable frame 61 is opened, the torsion force of the torsion spring itself can be used to automatically reset the movable frame 61.

[0025] When in use, place the device at the required position, turn the handle as needed to drive the bidirectional threaded rod 51 to rotate, and under the action of the thread, the threaded sleeve 57 on its surface moves, so that the connecting bracket 52 extends from the bottom of the support seat 1. When it is extended to the maximum state, the mounting column 53 and the auxiliary disc 54 move to the maximum distance, and then the device is auxiliary supported by the auxiliary disc 54 to expand the support area and achieve the effect of adjusting the support area. When support is not needed, it can be retracted to the bottom of the support seat 1 for storage to reduce the occupied area. When counterweighting is required, the counterweight column 1 55 is placed in the inner cavity of the mounting column 53, thereby increasing the weight of the auxiliary disc 54, and then the counterweight column 2 43 is placed in the inner cavity of the mounting groove 42. The number of counterweight columns 2 43 placed can be changed as needed to achieve a flexible counterweighting effect. After the counterweighting is completed, the shielding plate 62 is covered on the top of the counterweight column 2 43 for shielding to achieve a protective effect.

[0026] To sum up: the laboratory robot arm base with flexible counterweight, through the cooperation of the support seat 1, the connecting plate 2, the support plate 3, the counterweight assembly 4, the extension assembly 5 and the cover assembly 6, solves the problem that the counterweight component is set inside the device, the device needs to be opened when replacing the counterweight, the operation is cumbersome, and the support area is a fixed structure, and the center of gravity is unstable during the operation of the robot arm.

Claims

1. A laboratory mechanical arm base with flexible weight counterweight, comprising a support base (1), characterized in that: The support seat (1) is fixedly connected to connecting plates (2) on both the left and right sides of both the front and rear sides, and a supporting plate (3) is fixedly welded to the bottom of the connecting plate (2). An extension component (5) is fixedly installed on the bottom of the support seat (1). A counterweight component (4) is fixedly installed at the center of the top of the support seat (1). The counterweight component (4) comprises a counterweight block (41). A mounting platform (7) is fixedly connected to the center of the top of the counterweight block (41). The left and right sides of the top of the mounting platform (7) are fixedly connected to mounting plates (8). The front and rear sides of the counterweight block (41) are fixedly connected to covering components (6).

2. A laboratory mechanical arm base with flexible weight distribution according to claim 1, characterized in that: The expansion assembly (5) comprises a mounting seat (56), wherein the mounting seat (56) is fixedly welded to the center of the bottom of the support seat (1), and the inner cavity of the support seat (1) is rotatably connected to a bidirectional threaded rod (51) via a bearing.

3. A laboratory mechanical arm base with flexible weight distribution according to claim 2, characterized in that: The left and right sides of the surface of the bidirectional threaded rod (51) are both threadedly sleeved with threaded sleeves (57), and the front and rear sides of the threaded sleeve (57) are both fixedly welded with connecting brackets (52), and one end of the connecting bracket (52) away from the threaded sleeve (57) penetrates to the outside of the support seat (1) and is fixedly connected to a mounting column (53).

4. A laboratory robot arm base with flexible weight counterweight according to claim 3, characterized in that: An auxiliary disc (54) is fixedly welded to the bottom of the mounting column (53), a counterweight column (55) is placed in the inner cavity of the auxiliary disc (54), and the left and right sides of the bidirectional threaded rod (51) respectively penetrate the left and right sides of the support seat (1) and are fixedly connected to a rotating handle.

5. A laboratory robot arm base with flexible weight distribution according to claim 1, characterized in that: The counterweight block (41) is fixedly connected to the center of the top of the support seat (1), and a mounting groove (42) is formed around the outer ring of the top of the counterweight block (41), and a counterweight column 2 (43) is placed in the inner cavity of the mounting groove (42).

6. A laboratory robot arm base with flexible weight matching according to claim 1, characterized in that: The covering assembly (6) comprises a movable frame (61), the movable frame (61) being fixedly welded to the tops of the front and rear sides of the counterweight (41), respectively; a shielding plate (62) is movably mounted on the surface of the movable frame (61), a receiving groove (63) is provided at the bottom of the shielding plate (62), and a torsion spring is arranged inside the movable frame (61).

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