Flexible welding positioner

Abstract

The utility model discloses a flexible welding positioner which comprises a driving rotating side and a driven supporting side. The driving rotating side comprises a gear motor, a rotating shaft, a fixing flange, a starting button and a fixing support. The gear motor is fixedly installed on the fixing support, and the rotating shaft is in transmission connection with the output end of the gear motor and used for driving a workpiece to rotate around the rotating shaft. The fixed flange sleeves the rotating shaft and is used for assisting in positioning the driving end of the workpiece; the start button is electrically connected with the speed reduction motor and used for controlling start-stop or rotating speed adjustment of the speed reduction motor. The driven supporting side comprises a ground track, a limiting block, a roller, a bracket, a hand bolt, an adjusting screw rod and a flexible chain; the roller is mounted at the bottom of the bracket and is matched with a guide rail of the ground track, so that the bracket linearly slides along the ground track; the limiting blocks are fixedly installed at the two ends of the ground track and used for limiting the sliding range of the rollers. The clamp cost is reduced through equipment generalization, the efficiency is improved through automation, rework is reduced through structural design, and cost reduction, efficiency improvement and quality improvement cooperation are achieved.

Description

A flexible welding positioner Technical Field

[0001] This utility model relates to the field of welding positioner technology, specifically a flexible welding positioner. Background Technology

[0002] In the field of welding, welding positioners are used to adjust the posture of workpieces to ensure the welding area is at the optimal welding angle (such as flat welding or vertical welding), making them key equipment for improving welding quality and efficiency. However, for non-axisymmetric products (such as side components of vehicles), which have complex shapes (including curved surfaces and height differences at both ends) and variable length specifications, traditional positioners face significant technical bottlenecks.

[0003] Rigid support defects: Rigid supports cannot conform to curved surface contours, which can easily lead to workpiece deformation or support interference, affecting welding accuracy;

[0004] Insufficient length adaptability: The fixed spacing of the driven side support cannot be compatible with workpieces of various specifications, requiring the replacement of fixtures, which increases costs and changeover time;

[0005] Inefficient angle adjustment: It relies on manual part flipping, which is time-consuming and has poor precision, thus limiting welding efficiency;

[0006] Lack of height compensation: It lacks a flexible adjustment mechanism, cannot adapt to height differences at both ends of the workpiece or surface undulations, and has a narrow range of applications.

[0007] Existing technologies have not systematically solved the problem of synergistic matching of "flexible support, adjustable length, automatic rotation, and height compensation", making it difficult to balance efficiency, quality, and versatility in welding non-axisymmetric workpieces. Summary of the Invention

[0008] The purpose of this invention is to provide a flexible welding positioner to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a flexible welding positioner, comprising an active rotating side and a driven support side;

[0010] The active rotating side includes a geared motor, a rotating shaft, and a fixed bracket;

[0011] The geared motor is fixedly mounted on the fixed bracket, and the rotating shaft is connected to the output end of the geared motor for driving the workpiece to rotate around the rotating shaft.

[0012] The driven support side includes a ground track, rollers, bracket, hand pin, adjusting screw, and flexible chain;

[0013] The rollers are installed at the bottom of the bracket and cooperate with the guide rail of the ground track, so that the bracket can slide in a straight line along the ground track;

[0014] The hand pin is used to lock the relative position of the bracket and the ground track after the bracket has slid into place;

[0015] One end of the adjusting screw is connected to the flexible chain, and the other end cooperates with the bracket to adjust the support height of the flexible chain;

[0016] The flexible chain is used to flexibly support the driven end of the workpiece.

[0017] Preferably, the active rotating side further includes a fixed flange, which is sleeved on the rotating shaft and used to assist in the positioning of the active end of the workpiece.

[0018] Preferably, the active rotating side further includes a start button, which is electrically connected to the geared motor and is used to control the start / stop or speed adjustment of the geared motor.

[0019] Preferably, the driven support side further includes a limiting block, which is fixedly installed at both ends of the ground track to limit the sliding range of the roller.

[0020] Preferably, the roller is a directional roller that cooperates with the guide rail of the ground track to achieve linear sliding.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] Through the collaborative design of the active rotating side and the driven support side, the following core advantages are achieved: the flexible chain on the driven side adapts to the workpiece surface, avoiding rigid interference and deformation, and improving welding accuracy; the driven side continuously adjusts the support spacing via rollers and ground rails, and locks it with a hand pin, adapting to multiple workpiece specifications and reducing fixture investment; the geared motor drives the rotating shaft to rotate automatically, replacing manual workpiece turning, and accurately switching welding angles (such as flat welding / vertical welding), shortening auxiliary time; the adjusting screw flexibly adjusts the chain height to adapt to workpiece height differences or surface changes, covering more non-axisymmetric workpieces; the limit block, hand pin, and fixed flange lock the position in multiple links, ensuring no displacement or shaking during the welding process and guaranteeing consistent quality; equipment standardization reduces fixture costs, automation improves efficiency, and structural design reduces rework, achieving cost reduction, efficiency improvement, and quality enhancement in synergy. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model;

[0024] Figure 2 is a schematic diagram of the first partial structure of this utility model;

[0025] Figure 3 is a schematic diagram of the second partial structure of this utility model.

[0026] In the diagram: 1. Workpiece; 2. Flexible chain; 3. Hand pin; 4. Ground track; 5. Adjusting screw; 6. Limit block; 7. Roller; 8. Chain wheel; 9. Bracket; 10. Shaft; 11. Fixed flange; 12. Start button; 13. Gear motor; 14. Fixed bracket. Detailed Implementation

[0027] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figures 1-3. This utility model provides a technical solution: a flexible welding positioner, including an active rotation side and a driven support side;

[0029] The active rotating side includes a geared motor 13, a rotating shaft 10, a fixed flange 11, a start button 12, and a fixed bracket 14. The geared motor 13 is fixedly mounted on the fixed bracket 14, and the rotating shaft 10 is connected to the output end of the geared motor 13 for driving the workpiece 1 to rotate around the rotating shaft 10. The fixed flange 11 is sleeved on the rotating shaft 10 for assisting in the positioning of the active end of the workpiece 1. The start button 12 is electrically connected to the geared motor 13 for controlling the start / stop or speed adjustment of the geared motor 13.

[0030] When installing workpiece 1, first align its active end with the positioning pin hole of the fixed flange 11, insert the positioning pin, and tighten the bolts to fix it; then press the start button 12, and the reduction motor 13 drives workpiece 1 to rotate around the axis via the rotating shaft 10; during the welding process, the operator can adjust the speed in real time through the button to switch the welding area to the optimal welding angle and complete the automated rotary welding.

[0031] The driven support side includes a ground track 4, a limiting block 6, a roller 7, a bracket 9, a hand pin 3, an adjusting screw 5, and a flexible chain 2. The roller 7 is installed at the bottom of the bracket 9 and cooperates with the guide rail of the ground track 4, so that the bracket 9 slides linearly along the ground track 4. The limiting block 6 is fixedly installed at both ends of the ground track 4 to limit the sliding range of the roller 7.

[0032] The hand pin 3 is used to lock the relative position of the bracket 9 and the ground track 4 after the bracket 9 slides into place; one end of the adjusting screw 5 is connected to the flexible chain 2, and the other end cooperates with the bracket 9 to adjust the support height of the flexible chain 2; the flexible chain 2 is used to flexibly support the driven end of the workpiece 1; the roller 7 is a directional roller, which cooperates with the guide rail of the ground track 4 to achieve linear sliding.

[0033] In use, according to the length of workpiece 1, first loosen the hand pin 3, push the bracket 9 to slide along the ground track 4, and achieve rapid displacement through the roller 7; after the bracket 9 slides to the appropriate position, insert the hand pin 3 to lock it; then rotate the adjusting screw 5 handwheel to adjust the height of the flexible chain 2 so that it fits tightly against the driven end of workpiece 1; after completing the driven side support adaptation, cooperate with the active rotating side to achieve multi-angle welding of the workpiece. During the process, the flexible chain 2 can effectively buffer the deformation stress of the workpiece and ensure welding accuracy.

[0034] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0035] To adapt to the workpiece length: Loosen the hand pin 3, push the bracket 9 along the ground track 4 to guide the directional roller 7, and adjust the distance between the moving and active sides according to the length of the workpiece 1; after it is in place, insert the hand pin 3 to lock it.

[0036] Adjust the support height: Rotate the handwheel of the adjusting screw 5 to raise / lower the height of the flexible chain 2 so that it fits the curved surface / height difference of the driven end of the workpiece 1, thus completing the support adaptation.

[0037] Workpiece clamping: The active end of workpiece 1 is aligned with the fixed flange 11 and fixed by bolts / locating pins; the driven end is placed on the flexible chain 2, which flexibly conforms to the contour.

[0038] Rotary welding: Press the start button 12, the geared motor 13 drives the rotating shaft 10 to rotate, causing the workpiece 1 to rotate around the shaft; adjust the motor speed to make the welding area in the optimal posture such as flat welding / vertical welding, and cooperate with the welding equipment for processing.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible welding positioner, characterized in that, It includes an active rotating side and a driven support side; the active rotating side includes a geared motor (13), a rotating shaft (10), and a fixed bracket (14); the geared motor (13) is fixedly installed on the fixed bracket (14), and the rotating shaft (10) is connected to the output end of the geared motor (13) for driving the workpiece (1) to rotate around the rotating shaft (10); the driven support side includes a ground track (4), rollers (7), a bracket (9), a hand pin (3), an adjusting screw (5), and a flexible chain (2): The roller (7) is installed at the bottom of the bracket (9) and cooperates with the guide rail of the ground track (4) so ​​that the bracket (9) slides in a straight line along the ground track (4); the hand pin (3) is used to lock the relative position of the bracket (9) and the ground track (4) after the bracket (9) slides into place; one end of the adjusting screw (5) is connected to the flexible chain (2), and the other end cooperates with the bracket (9) to adjust the support height of the flexible chain (2); the flexible chain (2) is used to flexibly support the driven end of the workpiece (1).

2. The flexible welding positioner according to claim 1, characterized in that: The active rotating side also includes a fixed flange (11), which is sleeved on the rotating shaft (10) and is used to assist in the positioning of the active end of the workpiece (1).

3. The flexible welding positioner according to claim 1, characterized in that: The active rotating side also includes a start button (12), which is electrically connected to the geared motor (13) and is used to control the start / stop or speed adjustment of the geared motor (13).

4. The flexible welding positioner according to claim 1, characterized in that: The driven support side also includes a limiting block (6), which is fixedly installed at both ends of the ground track (4) to limit the sliding range of the roller (7).

5. A flexible welding positioner according to claim 1, characterized in that: The roller (7) is a directional roller that works in conjunction with the guide rail of the ground track (4) to achieve linear sliding.

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