Automobile assembling electric gun torque adjusting device based on intelligent control

Abstract

The utility model discloses an automobile assembly electric gun torque adjusting device based on intelligent control, and belongs to the technical field of automobile manufacturing. The device mainly comprises a mounting cylinder, a first servo motor is fixedly mounted at the end of the mounting cylinder, an output shaft cylinder is fixedly mounted on the other side of a torque box, a gun head is rotationally connected into the output shaft cylinder, an input spline is rotationally connected to one side of the torque box through a bearing seat, and the end of the input spline is in key connection with an output shaft of the first servo motor; the side wall of the input spline is fixedly connected with a driving cone disc, one side of the torque box is rotationally connected with an output spline, the side wall of the output spline is in transmission connection with a driven cone disc through a torque sensor, and the driving cone disc and the driven cone disc are in transmission connection through a torque adjusting assembly. Actual torque data can be fed back to the controller in time, accurate control over the torque is achieved, and the problem of insufficient precision is solved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to an automobile assembly electric gun torque adjustment device based on intelligent control. Background Technology

[0002] Existing automotive assembly electric guns, as key tools in the automotive manufacturing assembly process, are mainly used to quickly and efficiently tighten or loosen screws during automotive assembly. Compared with traditional manual tools, they are powered by electricity, which greatly improves assembly efficiency. Especially in modern automotive factories, robotic arms are used to install automotive assembly electric guns to assemble cars.

[0003] However, traditional electric guns mostly use relatively simple torque adjustment mechanisms, such as mechanical ones that adjust torque through simple spring pressure. But in actual operation, due to factors such as wear of mechanical parts, manufacturing tolerances, and changes in working environment temperature, the spring coefficient will change, resulting in a large deviation between the actual output torque and the set torque. For example, after long-term continuous operation, the spring heats up and softens, causing the output torque to gradually decrease, making it impossible to guarantee the consistency of screw tightening and affecting the reliability of automotive parts connection.

[0004] Therefore, it is necessary to provide an intelligent control-based automotive assembly electric gun torque adjustment device to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] The purpose of this invention is to provide an intelligent control-based torque adjustment device for automotive assembly electric guns, in order to solve the problems mentioned in the background art.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A torque adjustment device for an automotive assembly electric gun based on intelligent control includes a mounting cylinder for mounting on a robotic arm. A first servo motor is fixedly mounted at the end of the mounting cylinder. The end face of the first servo motor is fixedly mounted to one side wall of a torque box. An output shaft cylinder is fixedly mounted on the other side of the torque box. A gun head is rotatably connected in the output shaft cylinder.

[0009] One side of the torque box is rotatably connected to an input spline via a bearing seat. The end of the input spline is keyed to the output shaft of the first servo motor. An active cone disk is fixedly connected to the side wall of the input spline. One side of the torque box is rotatably connected to an output spline. The side wall of the output spline is driven by a torque sensor and a passive cone disk. The active cone disk and the passive cone disk are driven by a torque adjustment assembly.

[0010] Preferably, the torque adjustment component includes a movable seat and a torque disk. The bottom surface of the movable seat is rotatably connected to the torque disk, and both ends of the movable seat are threadedly connected to a transmission component. The transmission component provides positional movement for the movable seat under the drive of the drive component.

[0011] Preferably, the torque adjustment components are provided in two sets, with the two torque discs symmetrically arranged between the active cone disc and the passive cone disc, and both torque adjustment components are connected to the drive component through a transmission component.

[0012] Preferably, one side of the two opposing torque discs is set as a first conical surface, and one side of the two opposing driving and driven conical discs is set as a second conical surface, with the first conical surface and the second conical surface abutting each other.

[0013] Preferably, a movable plate is fixedly connected to both sides of the movable base, and a threaded hole is opened through the end of the movable plate, and the interior of the threaded hole is threadedly connected to the transmission component.

[0014] Preferably, the transmission assembly includes a worm, a worm wheel, and a transmission rod. The two ends of the transmission rod are rotatably mounted inside the torque box via second bearing seats. The bottom sidewall of the transmission rod is keyed to the worm wheel. The worm is meshed with the sidewall of the worm wheel. The interior of the worm is keyed to the drive assembly. The upper and lower sidewalls of the transmission rod are threaded to threaded holes on the moving plate.

[0015] The threads on the upper and lower half of the transmission rod are in opposite directions.

[0016] Preferably, the drive assembly includes a second servo motor and a drive rod. The second servo motor is mounted on the side wall of the torque box, and the drive rod is fixedly mounted to the output shaft of the second servo motor. The side wall of the drive rod is connected to the internal key of the worm gear.

[0017] The beneficial effects of this utility model are:

[0018] This technical solution uses a torque sensor to monitor the torque on the passive cone disc in real time, and can promptly feed the actual torque data back to the controller, thus achieving precise control of the torque and solving the problem of insufficient accuracy.

[0019] Furthermore, the movement of the transmission components is precisely controlled by the second servo motor, thereby adjusting the torque adjustment component, making the torque adjustment process smoother. Based on the data fed back by the torque sensor, the controller can automatically control the rotation direction and speed of the second servo motor, realizing intelligent adjustment of torque under different working conditions. This makes up for the lack of real-time feedback and intelligent adjustment in existing electric guns, greatly improving the performance and assembly quality of torque adjustment in automotive assembly electric guns.

[0020] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is an overall schematic diagram of an automotive assembly electric gun torque adjustment device based on intelligent control according to this utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of the torque box of this utility model;

[0024] Figure 3 This is a schematic diagram of the drive assembly, transmission assembly, and torque adjustment assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the drive assembly and transmission assembly of this utility model;

[0026] Figure 5 This is a schematic diagram of the torque adjustment component of this utility model.

[0027] The following are the labeling elements in the figure:

[0028] 1. Install the cylinder;

[0029] 2. First servo motor;

[0030] 3. Torque gearbox;

[0031] 4. Output shaft sleeve;

[0032] 5. Spearhead;

[0033] 6. Input spline;

[0034] 7. Active cone disc;

[0035] 8. Passive cone disc;

[0036] 9. Torque sensor;

[0037] 10. Output spline;

[0038] 11. Drive assembly; 111. Second servo motor; 112. Drive rod; 113. First bearing housing;

[0039] 12. Transmission assembly; 121. Worm gear; 122. Worm wheel; 123. Transmission rod; 124. Limiting plate; 125. Second bearing housing;

[0040] 13. Torque adjustment assembly; 131. Movable seat; 132. Torque disc; 133. First conical surface; 134. Rotating shaft; 135. Movable plate; 136. Threaded hole;

[0041] 14. Second cone surface. Detailed Implementation

[0042] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0044] Please see Figure 1-5 The embodiments provided by this utility model are as follows:

[0045] like Figure 1 As shown, an intelligent control-based automotive assembly electric gun torque adjustment device includes a mounting cylinder 1 for mounting on a robotic arm. A first servo motor 2 is fixedly mounted at the end of the mounting cylinder 1. The end face of the first servo motor 2 is fixedly mounted to one side wall of a torque box 3. An output shaft cylinder 4 is fixedly mounted on the other side of the torque box 3. A gun head 5 is rotatably connected in the output shaft cylinder 4. The first servo motor 2 provides power to the entire device, enabling the gun head 5 to tighten or loosen screws.

[0046] like Figure 2As shown, one side of the torque box 3 is rotatably connected to the input spline 6 via a bearing seat. The end of the input spline 6 is keyed to the output shaft of the first servo motor 2. The side wall of the input spline 6 is fixedly connected to the active cone disk 7. One side of the torque box 3 is rotatably connected to the output spline 10. The side wall of the output spline 10 is driven to the passive cone disk 8 via the torque sensor 9. The active cone disk 7 and the passive cone disk 8 are driven to each other via the torque adjustment assembly 13.

[0047] The first servo motor 2 serves as the power source. After being powered on, its output shaft begins to rotate, transmitting power to the input spline 6. The input spline 6 drives the active cone disk 7 to rotate, and the active cone disk 7 transmits power to the passive cone disk 8 through the torque adjustment component 13. The passive cone disk 8 then transmits power through the output spline 10, ultimately driving the gun head 5 to rotate. The torque sensor 9 monitors the torque on the passive cone disk 8 in real time, providing feedback data for subsequent torque adjustment.

[0048] Specifically, such as Figure 3 and Figure 5 As shown, the torque adjustment assembly 13 is provided in two sets, with two torque disks 132 symmetrically arranged between the active cone disk 7 and the passive cone disk 8. Both torque adjustment assemblies 13 are connected to the drive assembly 11 through the transmission assembly 12. The torque adjustment assembly 13 includes a movable seat 131 and a torque disk 132. The bottom surface of the movable seat 131 is rotatably connected to the torque disk 132. A shaft hole is opened on the bottom surface of the movable seat 131. A rotating shaft 134 is fixedly connected to the top surface of the torque disk 132. The torque disk 132 rotates in the shaft hole on the bottom surface of the movable seat 131 through the rotating shaft 134, thereby realizing the rotation between the movable seat 131 and the torque disk 132.

[0049] Among them, one side of the two opposing torque discs 132 is set as the first conical surface 133, and the other side of the two opposing driving conical discs 7 and driven conical discs is set as the second conical surface 14. The first conical surface 133 and the second conical surface 14 are arranged in contact.

[0050] The drive assembly 11 drives the transmission assembly 12 to work, and the transmission assembly 12 drives the movable seat 131 to move. Since the movable seat 131 is rotatably connected to the torque disk 132, the torque disk 132 moves with the movable seat 131 and can rotate around the shaft 134. When the movable seat 131 moves, the contact pressure between the first conical surface 133 of the torque disk 132 and the second conical surface 14 of the active conical disk 7 and the passive conical disk 8 changes. The greater the contact pressure, the greater the torque transmitted from the active conical disk 7 to the passive conical disk 8; conversely, the smaller the torque. By adjusting the contact pressure between the torque disk 132 and the active conical disk 7 and the passive conical disk 8, the magnitude of torque transmission can be adjusted. The two sets of symmetrically arranged torque adjustment assemblies 13 can make the torque transmission more stable and uniform, and improve the accuracy and reliability of torque adjustment.

[0051] The two ends of the movable seat 131 are threadedly connected to the transmission assembly 12. The transmission assembly 12 provides position movement for the movable seat 131 under the drive of the drive assembly 11. Specifically, the two sides of the movable seat 131 are respectively fixedly connected to the movable plate 135. The end of the movable plate 135 is provided with a threaded hole 136. The inside of the threaded hole 136 is threadedly connected to the transmission assembly 12.

[0052] Furthermore, such as Figure 4 As shown, the transmission assembly 12 includes a worm 121, a worm wheel 122, and a transmission rod 123. The two ends of the transmission rod 123 are rotatably mounted inside the torque box 3 via the second bearing seat 125. The bottom side wall of the transmission rod 123 is keyed to the worm wheel 122. The worm 121 is meshed with the side wall of the worm wheel 122. The interior of the worm 121 is keyed to the drive assembly 11. The upper and lower side walls of the transmission rod 123 are threaded to the threaded holes 136 on the moving plate 135.

[0053] It is worth noting that the threads on the upper and lower half of the transmission rod 123 are in opposite directions, and limit plates 124 are fixedly installed on both sides of the transmission rod 123 in the middle.

[0054] The drive assembly 11 drives the worm gear 121 to rotate. The worm gear 121 meshes with the worm wheel 122, transmitting the rotational motion to the worm wheel 122. This causes the worm wheel 122 to drive the transmission rod 123 to rotate. Since the threads of the upper and lower halves of the transmission rod 123 are in opposite directions, when the transmission rod 123 rotates, the moving plate 135, which is threadedly connected to the transmission rod 123, will drive the moving seat 131 to move in opposite directions. The function of the limiting plate 124 is to limit the movement range of the moving seat 131, preventing it from exceeding the reasonable position, thereby precisely controlling the contact pressure between the torque plate 132 and the active cone plate 7 and the passive cone plate 8.

[0055] The drive assembly 11 includes a second servo motor 111 and a drive rod 112. The drive rod 112 is rotatably mounted inside the torque chamber 3 via a first bearing seat 113. The second servo motor 111 is mounted on the side wall of the torque chamber 3. The drive rod 112 is fixedly mounted to the output shaft of the second servo motor 111. The side wall of the drive rod 112 is keyed to the inside of the worm gear 121. When the second servo motor 111 is energized, its output shaft rotates, driving the drive rod 112 to rotate. The drive rod 112 transmits power to the worm gear 121 via the keyed connection, causing the worm gear 121 to start rotating and providing power to the transmission assembly 12. The torque sensor 9 monitors the torque on the passive cone disc 8, providing feedback data to the controller. The controller then controls the rotation direction and speed of the second servo motor 111, allowing precise control of the movement of the transmission assembly 12. This, in turn, enables precise control of the torque adjustment assembly 13, ultimately achieving the purpose of adjusting the output torque of the gun head 5.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A smart control-based automobile assembly electric gun torque adjusting device, comprising a mounting cylinder (1) for mounting on a mechanical hand, a first servo motor (2) being fixedly mounted at an end of the mounting cylinder (1), characterized in that: The end surface of the first servo motor (2) is fixedly installed with one side wall of the torque box (3), the other side of the torque box (3) is fixedly installed with an output shaft cylinder (4), and the output shaft cylinder (4) is rotatably connected with a gun head (5); One side of the torque box (3) is rotatably connected with an input spline (6) through a bearing seat, the end of the input spline (6) is key connected with the output shaft of the first servo motor (2), the side wall of the input spline (6) is fixedly connected with a driving cone disc (7), one side of the torque box (3) is rotatably connected with an output spline (10), the side wall of the output spline (10) is drivingly connected with a driven cone disc (8) through a torque sensor (9), and the driving cone disc (7) and the driven cone disc (8) are drivingly connected through a torque adjusting assembly (13).

2. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 1, wherein: The torque adjusting assembly (13) comprises a moving seat (131) and a torque disc (132), the bottom surface of the moving seat (131) is rotatably connected with the torque disc (132), and the two ends of the moving seat (131) are threadedly connected with a transmission assembly (12), which provides position movement for the moving seat (131) under the driving of a driving assembly (11).

3. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 2, wherein: The torque adjusting assembly (13) is provided with two groups, two torque discs (132) are symmetrically arranged between the driving cone disc (7) and the driven cone disc (8), and the two torque adjusting assemblies (13) are drivingly connected with the driving assembly (11) through the transmission assembly (12).

4. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 3, wherein: One side of each of the two opposite torque discs (132) is provided with a first conical surface (133), one side of each of the two opposite driving cone discs (7) and driven cone discs is provided with a second conical surface (14), and the first conical surface (133) is arranged in abutment with the second conical surface (14).

5. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 3, wherein: The two sides of the moving seat (131) are fixedly connected with moving plates (135), respectively, thread holes (136) are formed in the ends of the moving plates (135), and the interiors of the thread holes (136) are threadedly connected with the transmission assembly (12), respectively.

6. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 5, wherein: The transmission assembly (12) comprises a worm (121), a worm wheel (122) and a transmission rod (123), the two ends of the transmission rod (123) are rotatably installed in the interior of the torque box (3) through second bearing seats (125), respectively, the bottom side wall of the transmission rod (123) is key connected with the worm wheel (122), the side wall of the worm (121) is meshingly connected with the worm wheel (122), the interior of the worm (121) is key connected with the driving assembly (11), and the upper half side wall and the lower half side wall of the transmission rod (123) are threadedly connected with the thread holes (136) on the moving plates (135), respectively. The screw thread directions on the upper half side wall and the lower half side wall of the transmission rod (123) are opposite.

7. The smart control based torque adjustment device for an automotive assembly electric gun according to claim 6, wherein: The driving assembly (11) comprises a second servo motor (111) and a driving rod (112), the second servo motor (111) is installed on the side wall of the torque box (3), the driving rod (112) is fixedly installed with the output shaft of the second servo motor (111), and the side wall of the driving rod (112) is connected with the inner key of the worm (121).

Images