Automatic code spraying and punching device for cantilever

By adjusting the distance between the wrist arm and the coding and punching components, efficient coding and punching of wrist arms with different diameters are achieved, solving the problem of existing devices requiring movement and improving efficiency and quality.

CN224170699UActive Publication Date: 2026-04-28CHINA RAILWAY ELECTRIFICATION ENGINEERING GROUP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY ELECTRIFICATION ENGINEERING GROUP CO LTD
Filing Date
2025-06-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing automatic inkjet printing and punching devices require moving the inkjet printing and punching devices when printing and punching on arms of different diameters, resulting in low efficiency.

Method used

An automatic coding and punching device with a wrist arm was designed. By adjusting the distance between the wrist arm and the coding and punching components through the support and drive components, the distance between the apex of the wrist arm with different diameters and the coding and punching components on the same vertical plane is kept consistent, so that coding and punching can be performed without moving the coding and punching components.

Benefits of technology

It improves the efficiency of coding and punching, and ensures the quality of coding and punching for arms of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic code spraying and punching device for a cantilever, which belongs to the technical field of cantilever production and comprises a bracket, a code spraying component and a punching component are arranged on the bracket, the code spraying component can spray codes on the cantilever on the bracket, and the punching component can punch the cantilever on the bracket. A first distance is arranged between the vertex of the cantilever and the code spraying assembly and the punching assembly, a supporting assembly is arranged on the bracket and makes contact with the cantilever so as to support the cantilever, and a driving assembly is connected to the supporting assembly. The supporting assembly enables the distances between the vertexes of the cantilevers with different diameters and the code spraying assembly and the punching assembly on the same vertical plane to be first distances through the driving assembly. The distances between the vertexes of the cantilevers with different diameters and the code spraying assembly and the punching assembly are the first distances, the code spraying assembly and the punching assembly can perform code spraying and punching on the cantilevers without moving positions, the punching and code spraying efficiency is improved, and meanwhile the punching and code spraying quality is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of wrist arm manufacturing technology, and in particular relates to an automatic inkjet printing and punching device for wrist arms. Background Technology

[0002] With the rapid development of electrified railways and urban rail transit, the demand for cantilever arms has increased significantly. Traditional production methods can no longer meet the needs of high-efficiency production. In order to overcome the limitations of manual operation, automated inkjet printing devices and automatic drilling devices have been gradually introduced. Automated inkjet printing devices realize the automatic positioning and inkjet printing of cantilever arms through robotic arms, sensors and control systems, which significantly improves efficiency and accuracy. Automatic drilling devices achieve precise drilling through positioning systems and high-speed drill bits, avoiding the deviations in manual operation.

[0003] Currently, existing automatic inkjet printing and punching devices require the inkjet printing and punching devices to determine the position of the wrist arm and then move it, which is time-consuming and labor-intensive, because different wrist arms have different diameters.

[0004] Therefore, there is an urgent need to design an automatic inkjet printing and punching device for wrist arms to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an automatic coding and punching device for wrist arms, which has the advantages of being able to code and punch wrist arms of different diameters without moving the coding and punching devices, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the specific technical solution of the automatic inkjet printing and punching device for wrist arm of this utility model is as follows:

[0007] An automatic inkjet printing and punching device for a wrist arm includes a bracket, on which an inkjet printing component and a punching component are mounted. The inkjet printing component can print codes on the wrist arm on the bracket, and the punching component can punch holes in the wrist arm on the bracket. The apex of the wrist arm is provided with a first distance from the inkjet printing component and the punching component. A support component is provided on the bracket and contacts the wrist arm to support it. A drive component is connected to the support component. The support component can adjust the distance between the apex of the wrist arm and the inkjet printing component and the punching component on the same vertical plane according to the diameter of the wrist arm, so that the distance between the apex of the wrist arm and the inkjet printing component and the punching component on the same vertical plane is the first distance for wrist arms of different diameters.

[0008] Furthermore, the support assembly includes two support members, each connected to a rotating shaft, and the two support members are rotatably connected to a support plate on the bracket via the rotating shaft.

[0009] Furthermore, the support is conical, and includes a large-diameter end plane and a small-diameter end plane. The diameter of the large-diameter end plane is larger than the diameter of the small-diameter end plane. The large-diameter end plane and the small-diameter end plane are connected by a conical surface, which contacts the wrist arm.

[0010] Furthermore, the small-diameter end planes of the two support members are opposite each other.

[0011] Furthermore, the two support members are driven by the drive assembly to slide towards or away from each other, so as to adjust the distance between the wrist arm with different diameters and the inkjet and punching components on the same vertical plane. When the diameter of the wrist arm is small, the two support members slide towards each other, so that the contact point between the wrist arm and the conical surface moves towards the large diameter end plane. When the diameter of the wrist arm is large, the two support members slide away from each other, so that the contact point between the wrist arm and the conical surface moves towards the small diameter end plane.

[0012] Furthermore, the drive assembly includes two racks and a gear, both of which mesh with each other. The two racks are located at the two ends of the gear, respectively. When the gear rotates, the two racks slide towards or away from each other. The racks are connected to the corresponding support members, and the gears are driven to rotate through the output end of the motor.

[0013] Furthermore, a collar is fixedly connected to the rack, and a retaining sleeve is fixedly connected to the support member, with the collar and retaining sleeve being rotatably connected.

[0014] Furthermore, the bracket is provided with a first gripper assembly, which can grip the wrist arm after the distance has been adjusted. The first gripper assembly can rotate relative to the bracket, so that the first gripper assembly can drive the wrist arm to rotate.

[0015] Furthermore, a reference plate is provided on the bracket, and a laser positioner is fixedly connected to the reference plate. The laser positioner determines that the distance between the apex of the wrist arm of different diameters and the inkjet component and the punching component on the same vertical plane is a first distance, and the size of the inkjet font of the inkjet component is determined according to the movement distance of the wrist arm.

[0016] Furthermore, the bracket is equipped with a second gripper assembly, which can clamp and fix the wrist arm.

[0017] The present invention has the following advantages: the distance between the apex of the wrist arm of different diameters and the coding component and the punching component is the first distance, so the distance between the apex of the wrist arm of different diameters and the coding component and the punching component is the same. The coding component and the punching component can perform coding and punching on the wrist arm without moving their positions, which improves the efficiency of punching and coding, and at the same time improves the quality of punching and coding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the inkjet printing and punching device of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the inkjet printing and punching device of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the support component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the drive component of this utility model;

[0023] The markings in the diagram are as follows: 1. Bracket; 11. Support plate; 2. Support assembly; 21. Support component; 211. Large diameter end plane; 212. Small diameter end plane; 213. Tapered surface; 22. Rotating shaft; 23. Sleeve; 24. Drive assembly; 241. Rack; 242. Collar; 243. Gear; 3. Inkjet assembly; 4. Drilling assembly; 5. First gripper assembly; 6. Second gripper assembly; 7. Wrist arm. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0026] The following is a reference to the appendix. Figure 1 To be continued Figure 5 This invention describes an automatic inkjet printing and punching device for wrist arms.

[0027] In the automated cantilever pre-assembly production line, robots, cross-frame manipulators, laser scanning high-precision ranging equipment, and a control system, vision system, and PLC system are used to realize the feeding of tubing such as cantilever tubes, positioning tubes, and support tubes, as well as load-bearing cable seats and single-ear positioning rings of the sleeve. First, the pre-assembly information of the anchor sections to be produced is imported into the file. The system manages the production process based on the information. The tube cutting workstation automatically optimizes the cutting plan according to preset parameters to maximize the utilization of raw materials. After the cutting is completed, the cross-frame manipulator grabs the material to the chamfering workstation. The intelligent chamfering equipment is equipped with a control system and a high-precision drive device to accurately control the chamfering dimensions. After the pipes are cut and chamfered according to their angle and shape, they are picked up by a horizontal robotic arm and stored in a buffer station. At the same time, the information system accurately records the storage location. The punching and coding binding workstation can automatically identify the product and automatically adjust the position, content and format of the coding. It can also interact with other equipment for data exchange. After punching, the robot picks up the parts and performs photo inspection through a vision system. After ensuring that there are no errors, the parts are threaded into the pipe and then tightened with torque. The robotic arm picks up the tightened pipes and puts them into the line inspection workstation. Relying on line scanning technology, the surface quality, shape, size, color and other aspects are comprehensively inspected. After passing the inspection, the production is completed.

[0028] An automatic inkjet printing and punching device for a wrist arm includes a bracket 1. The bracket 1 is provided with an inkjet printing component 3 and a punching component 4. The inkjet printing component 3 can print ink on the wrist arm 7 on the bracket 1, and the punching component 4 can punch holes in the wrist arm 7 on the bracket 1. Both the inkjet printing component 3 and the punching component 4 are located above the wrist arm 7.

[0029] The bracket 1 is provided with a support component 2, which contacts the wrist arm 7 to support the wrist arm 7.

[0030] The bracket 1 is equipped with two gripper assemblies, namely the first gripper assembly 5 and the second gripper assembly 6. The first gripper assembly 5 is located on one side of the wrist arm 7. The first gripper assembly 5 can clamp the wrist arm 7 after the distance has been adjusted. The first gripper assembly 5 can rotate relative to the bracket 1, so that the first gripper assembly 5 can drive the wrist arm 7 to rotate. The first gripper assembly 5 first fixes the wrist arm 7, and then drives the wrist arm 7 to rotate, so that the wrist arm 7 can meet the needs of the inkjet printing assembly 3 and the punching assembly 4, that is, punching and printing at any position. The second gripper assembly 6 is located on the side of the support assembly 2. The second gripper assembly 6 can fix the wrist arm 7 to prevent the wrist arm 7 from shaking when punching or printing, which would affect the punching and printing quality of the wrist arm 7.

[0031] Currently, existing automatic inkjet printing and punching devices require the inkjet printing and punching devices to determine the position of the wrist arm and then move it, which is time-consuming and labor-intensive, because different wrist arms have different diameters.

[0032] Therefore, in this automatic inkjet printing and punching device, there is a first distance between the apex of the wrist arm 7 and the inkjet printing component 3 and the punching component 4. The first distance is a fixed value. Since the inkjet printing component 3 and the punching component 4 are both located above the wrist arm 7, the punching position and the inkjet printing position of the wrist arm 7 are both at the apex of the wrist arm 7.

[0033] The support component 2 is connected to the drive component 24. The support component 2 can adjust the distance between the wrist arm 7 and the inkjet component 3 and the punching component 4 according to the diameter of the wrist arm 7 through the drive component 24. This ensures that the distance between the vertex of the wrist arm 7 of different diameters and the inkjet component 3 and the punching component 4 is the same. As a result, the distance between the vertex of the wrist arm 7 of different diameters and the inkjet component 3 and the punching component 4 is the same. The inkjet component 3 and the punching component 4 can perform inkjet printing and punching on the wrist arm 7 without moving their positions.

[0034] The support assembly 2 includes two support members 21, and a rotating shaft 22 is connected to each of the two support members 21. The two support members 21 are rotatably connected to the support plate 11 on the bracket 1 through the rotating shaft 22. By setting the rotating shaft 22, the support members 21 roll synchronously around the rotating shaft 22 as the center when the wrist arm 7 moves, reducing friction. Preferably, the output end of the motor of the rotating shaft 22 is fixedly connected, so that the sliding distance of the wrist arm 7 on the horizontal plane can be controlled by driving the motor, so that the distance between the wrist arm 7 and the inkjet printing assembly 3 and the punching assembly 4 on the same horizontal plane can be controlled, so as to determine the inkjet printing and punching positions of the inkjet printing assembly 3 and the punching assembly 4 on the wrist arm 7.

[0035] Preferably, a spline is fixedly connected to the rotating shaft 22, and keyways are provided on both support members 21. The two support members 21 are slidably connected to the spline of the rotating shaft 22 through the keyways.

[0036] Preferably, the support member 21 is conical and includes a large-diameter end plane 211 and a small-diameter end plane 212. The diameter of the large-diameter end plane 211 is larger than the diameter of the small-diameter end plane 212. The large-diameter end plane 211 and the small-diameter end plane 212 are connected by a conical surface 213. The conical surface 213 contacts the wrist arm 7, and the small-diameter end planes 212 of the two support members 21 are opposite to each other.

[0037] Furthermore, the two support members 21 are driven by the drive assembly 24 to slide towards or away from each other, thereby adjusting the distance between the wrist arm 7 with different diameters and the inkjet assembly 3 and the punching assembly 4. When the diameter of the wrist arm 7 is small, the two support members 21 slide towards each other, causing the contact point between the wrist arm 7 and the conical surface 213 to move towards the large-diameter end plane 211. As a result, the distance between the apex of the wrist arm 7 and the inkjet assembly 3 and the punching assembly 4 on the same vertical plane gradually decreases until the distance between the apex of the wrist arm 7 and the inkjet assembly 3 and the punching assembly 4 on the same vertical plane is the first distance. When the diameter of the wrist arm 7 is large, the two support members 21 slide away from each other, causing the contact point between the wrist arm 7 and the conical surface 213 to move towards the small-diameter end plane 212. As a result, the distance between the apex of the wrist arm 7 and the inkjet assembly 3 and the punching assembly 4 on the same vertical plane gradually increases until the distance between the apex of the wrist arm 7 and the inkjet assembly 3 and the punching assembly 4 on the same vertical plane is the first distance.

[0038] The drive assembly 24 includes two racks 241 and a gear 243. The two racks 241 and the gear 243 are meshed, and the two racks 241 are located at the two ends of the gear 243. When the gear 243 rotates, the two racks 241 slide towards each other or away from each other. The racks 241 are connected to the corresponding support members 21. The gear 243 is driven to rotate through the output end of the motor. When the two racks 241 slide towards each other, the two support members 21 slide towards each other synchronously, so that the distance between the apex of the wrist arm 7 and the inkjet printing assembly 3 and the punching assembly 4 on the same vertical plane gradually decreases. When the two racks 241 slide away from each other, the two support members 21 slide away from each other synchronously, so that the distance between the apex of the wrist arm 7 and the inkjet printing assembly 3 and the punching assembly 4 on the same vertical plane gradually increases.

[0039] Preferably, a groove is provided on the bracket to limit the movement of the two racks 241.

[0040] Preferably, a collar 242 is fixedly connected to the rack 241, and a retaining sleeve 23 is fixedly connected to the support member 21. The collar 242 and the retaining sleeve 23 are rotatably connected. Through the cooperation of the collar 242 and the retaining sleeve 23, the support member 21 can be driven to slide in opposite directions, and the support member 21 can rotate synchronously around the rotation axis 22.

[0041] The bracket 1 is provided with a reference plate, which contacts one end of the wrist arm 7. The distance between the wrist arm 7 and the coding component 3 and the punching component 4 on the same horizontal plane can be determined by the reference plate, so that the coding and punching positions of the coding component 3 and the punching component 4 on the wrist arm 7 can be determined. Preferably, the reference plate can slide relative to the bracket 1, so that the distance between the reference plate and the coding component 3 and the punching component 4 on the same horizontal plane can be adjusted, so that the coding and punching positions of the coding component 3 and the punching component 4 on the wrist arm 7 can be adjusted.

[0042] A laser positioner is installed on the reference plate. The laser positioner determines the distance between the apex of the wrist arm 7 of different diameters and the marking assembly 3 and the punching assembly 4 on the same vertical plane. If the distance between the apex of the wrist arm 7 and the marking assembly 3 and the punching assembly 4 on the same vertical plane is not the first distance, the laser positioner determines the diameter of the wrist arm 7. That is, the receiving end of the laser positioner will receive two types of reflected laser signals: a laser signal reflected by the wrist arm 7 or a laser signal reflected by the air medium. When the receiving end of the laser positioner receives a laser signal reflected by the wrist arm 7, the diameter of the wrist arm 7 is larger. The two support members 21 slide back-to-back, causing the contact point between the wrist arm 7 and the conical surface 213 to move towards the smaller diameter end plane 212. That is, when the receiving end of the laser positioner receives a laser signal reflected by the wrist arm 7... When the reflected laser signal from the medium is converted by the arm 7, the distance between the apex of the arm 7 and the marking assembly 3 and the punching assembly 4 on the same vertical plane is the first distance. When the laser positioner receives the laser signal reflected by the medium, the diameter of the arm 7 is small. The two support members 21 slide towards each other, causing the contact point between the arm 7 and the conical surface 213 to move towards the large-diameter end plane 211. That is, when the laser positioner receives the reflected laser signal converted from the medium to the arm 7, the distance between the apex of the arm 7 and the marking assembly 3 and the punching assembly 4 on the same vertical plane is the first distance. The size of the marking font of the marking assembly 3 is determined by the vertical movement distance of the arm 7, so that the size of the marking font corresponds to the diameter of the arm 7.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic inkjet printing and punching device for a wrist arm, characterized in that, The device includes a bracket (1), on which a coding component (3) and a punching component (4) are provided. The coding component (3) can code the wrist arm (7) on the bracket (1), and the punching component (4) can punch holes in the wrist arm (7) on the bracket (1). The apex of the wrist arm (7) is at a first distance from the coding component (3) and the punching component (4). The bracket (1) is provided with a support component (2), which contacts the wrist arm (7) to support it. The support component (2) is connected to a drive component (24). The support component (2) can adjust the distance between the wrist arm (7) and the coding component (3) and the punching component (4) on the same vertical plane according to the diameter of the wrist arm (7) through the drive component (24), so that the distance between the apex of the wrist arm (7) of different diameters and the coding component (3) and the punching component (4) on the same vertical plane is the first distance.

2. The automatic inkjet printing and punching device for wrist arm according to claim 1, characterized in that, The support assembly (2) includes two support members (21), and a rotating shaft (22) is connected to the two support members (21). The two support members (21) are rotatably connected to the support plate (11) on the bracket (1) through the rotating shaft (22).

3. The automatic inkjet printing and punching device for wrist arms according to claim 2, characterized in that, The support member (21) is conical and includes a large-diameter end plane (211) and a small-diameter end plane (212). The diameter of the large-diameter end plane (211) is larger than the diameter of the small-diameter end plane (212). The large-diameter end plane (211) and the small-diameter end plane (212) are connected by a conical surface (213), which contacts the wrist arm (7).

4. The automatic inkjet printing and punching device for wrist arm according to claim 3, characterized in that, The small-diameter end planes (212) of the two support members (21) are opposite each other.

5. The automatic inkjet printing and punching device for a wrist arm according to claim 3, characterized in that, The two support members (21) are driven by the drive assembly (24) to slide towards each other or away from each other, so as to adjust the distance between the wrist arm (7) of different diameters and the coding assembly (3) and the punching assembly (4) on the same vertical plane. When the diameter of the wrist arm (7) is small, the two support members (21) slide towards each other, so that the contact point between the wrist arm (7) and the tapered surface (213) moves towards the large diameter end plane (211). When the diameter of the wrist arm (7) is large, the two support members (21) slide away from each other, so that the contact point between the wrist arm (7) and the tapered surface (213) moves towards the small diameter end plane (212).

6. The automatic inkjet printing and punching device for a wrist arm according to claim 5, characterized in that, The drive assembly (24) includes two racks (241) and a gear (243). The two racks (241) and the gear (243) are meshed, and the two racks (241) are located at the two ends of the gear (243). When the gear (243) rotates, the two racks (241) slide towards each other or away from each other. The racks (241) are connected to the corresponding support members (21), and the gear (243) is driven to rotate through the output end of the motor.

7. The automatic inkjet printing and punching device for a wrist arm according to claim 6, characterized in that, A collar (242) is fixedly connected to the rack (241), and a retainer (23) is fixedly connected to the support (21). The collar (242) and the retainer (23) are rotatably connected.

8. The automatic inkjet printing and punching device for wrist arm according to claim 1, characterized in that, The bracket (1) is provided with a first gripper assembly (5), which can grip the wrist arm (7) after the distance has been adjusted. The first gripper assembly (5) can rotate relative to the bracket (1), so that the first gripper assembly (5) can drive the wrist arm (7) to rotate.

9. The automatic inkjet printing and punching device for a wrist arm according to claim 1, characterized in that, The bracket (1) is provided with a reference plate, and a laser locator is fixedly connected to the reference plate. The laser locator determines that the distance between the apex of the wrist arm (7) of different diameters and the inkjet component (3) and the punching component (4) on the same vertical plane is the first distance. The size of the inkjet font of the inkjet component (3) is determined according to the moving distance of the wrist arm (7).

10. The automatic inkjet printing and punching device for a wrist arm according to claim 1, characterized in that, The bracket (1) is provided with a second gripper assembly (6), which can clamp and fix the wrist arm (7).