Mechanical arm structure for tightening assembly test

Abstract

The utility model discloses a mechanical arm structure for a tightening assembly test, which comprises a base, a stand column fixed at the center of the top end of the base, a top seat mounted at one end of the stand column far away from the base, a transmission case arranged above the top seat, and a gear motor mounted at the bottom of the transmission case, the bottom end of the gear motor extends out of the transmission box and is connected with the top end of the top seat, a first driving arm is rotationally installed on the inner wall of the transmission box, one end of the first driving arm extends out of the transmission box and is rotationally provided with a second driving arm, and a limiting arm is rotationally installed on the outer wall of the end, close to the first driving arm, of the second driving arm; two linkage arms are installed at the end, away from the second driving arm, of the limiting arm, a base is installed at the end, away from the limiting arm, of each linkage arm, and a plurality of reinforcing ribs are arranged on the outer wall of the stand column. The tightening device is simple in structure, the tightening shaft is easy to move and operate, the tightening device can quickly and effectively move to all positions in the stroke range, and space limiting is avoided.

Description

A robotic arm structure for tightening assembly testing Technical Field

[0001] This utility model relates to the field of industrial technology, specifically to a robotic arm structure for tightening assembly testing. Background Technology

[0002] In modern industrial production, the assembly and testing process plays a crucial role in the quality and performance of products. Tightening assembly, as a key step in the assembly process, directly affects the overall quality, reliability, and production cycle of the product in terms of its accuracy and efficiency. Traditional manual tightening methods have many drawbacks, such as high labor intensity, difficulty in accurately controlling tightening torque, low work efficiency, and the tendency to miss or overtighten, resulting in unstable product quality and a high defect rate. Therefore, it is particularly important to develop a robotic arm structure for tightening assembly testing.

[0003] With the continuous development of industrial automation technology, robotic arms are gradually being applied to the field of tightening and assembly. However, the existing tightening robotic arm structure still has some shortcomings. Existing similar products mainly use a single column structure, that is, a vertical column and a horizontal bar are used to install and move the tightening shaft. The single column structure of the robotic arm makes it relatively difficult to move the tightening shaft, with many limitations, and it cannot move quickly and efficiently into place. Summary of the Invention

[0004] The purpose of this invention is to provide a robotic arm structure for tightening assembly testing, in order to solve the problems in the background art where the single-column robotic arm structure has relatively difficult movement operation of the tightening shaft, many limitations, and cannot move quickly and efficiently into place.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a robotic arm structure for tightening assembly testing, comprising a base, a column fixed at the center of the top of the base, a top seat mounted on the end of the column away from the base, a transmission box above the top seat, a geared motor mounted at the bottom of the transmission box, the bottom end of the geared motor extending to the outside of the transmission box and connected to the top of the top seat, a first drive arm rotatably mounted on the inner wall of the transmission box, one end of the first drive arm extending to the outside of the transmission box and rotatably mounted on a second drive arm, a limit arm rotatably mounted on the outer wall of the second drive arm near the end of the first drive arm, two linkage arms mounted on the end of the limit arm away from the second drive arm, a base mounted on the end of the linkage arm away from the limit arm, and a plurality of reinforcing ribs provided on the outer wall of the column, the bottom ends of the reinforcing ribs being fixedly connected to the top of the base.

[0006] Preferably, the outer surfaces of both sides of the transmission box are provided with waist-shaped grooves, and a limiting shaft is rotatably installed on the inner wall of the linkage arm. The end of the limiting shaft away from the linkage arm passes through the waist-shaped groove and extends into the interior of the transmission box. The setting of the limiting shaft and the waist-shaped groove is used to limit the movement range of the second drive arm in conjunction with the linkage arm and the limiting arm.

[0007] Preferably, a lifting cylinder is installed on one side of the bottom end of the transmission box. The top end of the lifting cylinder extends into the interior of the transmission box and is rotatably connected to the bottom end of the first drive arm. The lifting cylinder is configured to drive the bottom end of the first drive arm to perform lifting and lowering operations.

[0008] Preferably, a forearm seat is installed at the bottom end of the second drive arm, and a component storage box is installed at the bottom end of the forearm seat. The component storage box is provided to accommodate the component rack.

[0009] Preferably, a component rack is installed on the outer wall of one side of the component box, and a rotary drive component is installed on the inner side of the component rack. The rotary drive component is configured to drive the screwing head to rotate.

[0010] Preferably, a screwing head is installed at the bottom of the rotary drive component, and locking bolts are installed on the outer walls of both sides of the component holder. One end of the locking bolt passes through the component holder and is threadedly connected to the outer wall of the rotary drive component. The locking bolts facilitate the disassembly and assembly of the rotary drive component.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The robotic arm structure for tightening assembly testing is formed by combining a first drive arm, a second drive arm, and a limiting arm to form an elephant trunk-shaped robotic arm. This makes the robotic arm structure simple, the tightening shaft easy to move, and it can quickly and effectively move to various positions within the stroke range without spatial limitations. Under the same range of measurement, the height of this elephant trunk-shaped robotic arm structure is smaller. In addition, the use of a linkage arm, a limiting shaft, and a waist-shaped groove to form the limiting structure of the main body of the robotic arm makes the robotic arm structure more stable during movement. The use of a lifting cylinder and a geared motor drive component for distributed drive of the robotic arm structure also allows each joint of the robotic arm to operate and drive independently. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the right-side structure of this utility model;

[0013] Figure 2 is a schematic diagram of the left-side structure of this utility model;

[0014] Figure 3 is a schematic diagram of the structure of this utility model from a bottom view;

[0015] Figure 4 is an enlarged structural schematic diagram of point A in Figure 2 of this utility model.

[0016] In the diagram: 1. Base; 2. Column; 3. Top seat; 4. Reinforcing rib; 5. Transmission box; 6. First drive arm; 7. Second drive arm; 8. Limit arm; 9. Linkage arm; 10. Limit shaft; 11. Waist-shaped groove; 12. Forearm seat; 13. Parts box; 14. Parts rack; 15. Rotary drive component; 16. Tightening head; 17. Base; 18. Lifting cylinder; 19. Gear motor; 20. Locking bolt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please refer to Figures 1-4. One embodiment of this utility model is provided: a robotic arm structure for tightening assembly testing, including a base 1, a column 2 fixed at the center of the top of the base 1, a top seat 3 installed at the end of the column 2 away from the base 1, a transmission box 5 provided above the top seat 3, waist-shaped grooves 11 provided on the outer surfaces of both sides of the transmission box 5, and a limiting shaft 10 rotatably installed on the inner wall of the linkage arm 9, with the end of the limiting shaft 10 away from the linkage arm 9 passing through the waist-shaped groove 11 and extending into the interior of the transmission box 5;

[0019] In use, the setting of the limiting shaft 10 and the waist-shaped groove 11 is used to limit the movement range of the second drive arm 7 in conjunction with the linkage arm 9 and the limiting arm 8.

[0020] A lifting cylinder 18 is installed on one side of the bottom end of the transmission box 5. The top of the lifting cylinder 18 extends into the interior of the transmission box 5 and is rotatably connected to the bottom end of the first drive arm 6.

[0021] In use, the lifting cylinder 18 is used to drive the bottom end of the first drive arm 6 to perform lifting and lowering operations.

[0022] A geared motor 19 is installed at the bottom of the transmission box 5. The bottom end of the geared motor 19 extends to the outside of the transmission box 5 and is connected to the top of the top seat 3. A first drive arm 6 is rotatably installed on the inner wall of the transmission box 5. One end of the first drive arm 6 extends to the outside of the transmission box 5 and a second drive arm 7 is rotatably installed. A forearm seat 12 is installed at the bottom end of the second drive arm 7. A storage box 13 is installed at the bottom end of the forearm seat 12.

[0023] In use, the placement box 13 is provided to accommodate the placement rack 14.

[0024] A component rack 14 is installed on the outer wall of one side of the component box 13, and a rotary drive component 15 is installed on the inner side of the component rack 14.

[0025] In use, the rotating drive 15 is configured to drive the screwing head 16 to rotate.

[0026] A screwing head 16 is installed at the bottom of the rotary drive component 15, and locking bolts 20 are installed on the outer walls of both sides of the component holder 14. One end of the locking bolt 20 passes through the component holder 14 and is threadedly connected to the outer wall of the rotary drive component 15.

[0027] During use, the locking bolt 20 is used to facilitate the disassembly and assembly of the rotary drive component 15;

[0028] A limiting arm 8 is rotatably installed on the outer wall of the second drive arm 7 near the first drive arm 6. Two linkage arms 9 are installed on the end of the limiting arm 8 away from the second drive arm 7. A base 17 is installed on the end of the linkage arm 9 away from the limiting arm 8. Several reinforcing ribs 4 are provided on the outer wall of the column 2. The bottom end of the reinforcing rib 4 is fixedly connected to the top end of the base 1.

[0029] In this embodiment, the first drive arm 6, the second drive arm 7, and the limiting arm 8 are combined to form an elephant trunk-shaped robotic arm. This makes the robotic arm simple in structure, easy to move and tighten the shaft, and can quickly and effectively move to various positions within its stroke range without spatial limitations. Within the same range, the elephant trunk-shaped robotic arm has a smaller structural height. When the lifting cylinder 18 drives the bottom end of the first drive arm 6 to move up and down, the lower end of the first drive arm 6 rotates around the inner wall of the transmission box 5. The linkage arm 9, the limiting shaft 10, and the waist-shaped groove 11 form the limiting structure of the robotic arm body, making the robotic arm structure more stable during movement. At this time, the second drive arm 7 and the first drive arm 8... The angle between arms 6 changes, allowing for corresponding adjustments to the robotic arm structure as needed. When the reduction motor 19 is started, the transmission box 5 rotates at the top of the top seat 3 to horizontally adjust the robotic arm structure. The lifting cylinder 18 and the reduction motor 19 drive components provide distributed drive for the robotic arm structure, enabling each joint of the robotic arm structure to operate independently. Furthermore, the locking bolt 20 allows the rotary drive component 15 to be installed and removed from the inside of the component holder 14. The tightening head 16 is then aligned and contacted with the component to be tightened. The rotary drive component 15 drives the tightening head 16 to rotate, thus performing the tightening operation on the component to be assembled and tested, thereby completing the use of the robotic arm structure.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mechanical arm structure for tightening assembly testing, characterized by: Includes a base (1), a column (2) fixed at the center of the top of the base (1), a top seat (3) installed at the end of the column (2) away from the base (1), a transmission box (5) provided above the top seat (3), a geared motor (19) installed at the bottom of the transmission box (5), the bottom end of the geared motor (19) extending to the outside of the transmission box (5) and connected to the top of the top seat (3), a first drive arm (6) rotatably mounted on the inner wall of the transmission box (5), the first drive arm (6) One end extends to the outside of the transmission box (5) and is rotatably mounted with a second drive arm (7). A limit arm (8) is rotatably mounted on the outer wall of the second drive arm (7) near the end of the first drive arm (6). Two linkage arms (9) are mounted on the end of the limit arm (8) away from the second drive arm (7). A base (17) is mounted on the end of the linkage arm (9) away from the limit arm (8). Several reinforcing ribs (4) are provided on the outer wall of the column (2). The bottom end of the reinforcing rib (4) is fixedly connected to the top end of the base (1).

2. A mechanical arm structure for tightening assembly testing according to claim 1, characterized in that: The outer surfaces of both sides of the transmission box (5) are provided with waist-shaped grooves (11), and a limiting shaft (10) is rotatably installed on the inner wall of the linkage arm (9). The end of the limiting shaft (10) away from the linkage arm (9) passes through the waist-shaped groove (11) and extends into the interior of the transmission box (5).

3. The mechanical arm structure for tightening assembly test according to claim 1, characterized in that: A lifting cylinder (18) is installed on one side of the bottom end of the transmission box (5). The top of the lifting cylinder (18) extends into the interior of the transmission box (5) and is rotatably connected to the bottom end of the first drive arm (6).

4. The mechanical arm structure for tightening assembly test according to claim 1, characterized in that: The bottom end of the second drive arm (7) is equipped with a forearm seat (12), and the bottom end of the forearm seat (12) is equipped with a component box (13).

5. A mechanical arm structure for tightening assembly testing according to claim 4, characterized in that: A component rack (14) is installed on the outer wall of one side of the component box (13), and a rotary drive component (15) is installed on the inner side of the component rack (14).

6. A mechanical arm structure for tightening assembly testing according to claim 5, characterized in that: The bottom end of the rotary drive (15) is equipped with a screwing head (16), and locking bolts (20) are installed on the outer walls of both sides of the mounting frame (14). One end of the locking bolt (20) passes through the mounting frame (14) and is threadedly connected to the outer wall of the rotary drive (15).

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