Auxiliary elbow welding device

Abstract

The utility model discloses an elbow welding auxiliary device which comprises a base, a fixing frame and a rotating frame, and a first driving device used for driving the rotating frame to rotate around the X-axis direction is arranged on the fixing frame. A lifting seat is arranged at the bottom of the rotating frame, the lifting seat is rotatably connected with a supporting seat, and a second driving device used for driving the supporting seat to rotate around the Y-axis direction is arranged on the lifting seat; the rotating frame is provided with a third driving device used for driving the lifting base to do linear reciprocating motion in the length direction of the lifting base. According to the elbow welding auxiliary device, the elbow can move in multiple directions in the welding process so that the elbow can be adjusted to be in a proper posture, and welding efficiency and welding precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to an auxiliary device for welding elbows. Background Technology

[0002] Multi-segment welded elbows are formed by cutting and processing multiple straight or curved pipe segments, and then welding them together. Welding elbows using welding robots often requires auxiliary devices for clamping the elbows. Existing auxiliary devices typically use a three-jaw chuck to clamp the elbow, but this only drives the chuck and the elbow to rotate around a horizontal axis. Because the rotation direction is unidirectional, it is sometimes difficult to adjust to a suitable posture for welding. Some solutions place the elbow on a roller frame during welding, using the rollers to rotate the elbow. Existing solutions are only suitable for applications with low rotation speed and precision requirements, resulting in low welding efficiency and accuracy. In view of the above technical problems, this utility model proposes an elbow welding auxiliary device that can conveniently clamp elbows and allows for angle and position adjustments in multiple directions during welding, improving elbow welding efficiency and accuracy. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an auxiliary device for elbow welding, which aims to solve the technical problem that the lack of a dedicated device for multi-segment welding elbows in the prior art leads to low welding efficiency and welding accuracy of multi-segment welding elbows.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An auxiliary device for elbow welding includes a base, a fixed frame, and a rotating frame. The fixed frame is provided with a first driving device for driving the rotating frame to rotate around the X-axis. The bottom of the rotating frame is provided with a lifting seat, which is rotatably connected to a support seat. The lifting seat is provided with a second driving device for driving the support seat to rotate around the Y-axis. The rotating frame is provided with a third driving device for driving the lifting seat to reciprocate linearly along the length of the lifting seat.

[0006] Furthermore, in the aforementioned elbow welding auxiliary device, the first driving device is a first motor, and the main shaft of the first motor is parallel to the X-axis direction.

[0007] Furthermore, in the aforementioned elbow welding auxiliary device, the second driving device is a second motor, the main shaft of which is parallel to the Y-axis direction.

[0008] Furthermore, in the aforementioned elbow welding auxiliary device, the third driving device includes a third motor, a lead screw, a lead screw nut, a slide rail, and a slider; the slider and the lead screw nut are respectively connected to the lifting seat; the third motor is used to drive the lead screw to rotate.

[0009] Furthermore, in the aforementioned elbow welding auxiliary device, the main shaft of the third motor is equipped with a first synchronous pulley, one end of the lead screw is equipped with a second synchronous pulley, and a synchronous belt is wound between the first and second synchronous pulleys.

[0010] Furthermore, the elbow welding auxiliary device is provided with two slide rails, and each slide rail is provided with a slider.

[0011] Furthermore, in the aforementioned elbow welding auxiliary device, the support base includes a body and a circular boss, the circular boss and the body are connected by a flange, and the body and the lifting seat are rotatably connected.

[0012] Beneficial effects: This utility model provides an auxiliary device for elbow welding, which, compared with the prior art, has at least the following technical effects:

[0013] (1) Improved welding accuracy: Traditional auxiliary devices have limited rotation direction, making it difficult to accurately adjust the elbow posture. However, this device can rotate around the X-axis, rotate around the Y-axis, and reciprocate linearly along the length of the fixed frame. It can accurately position the elbow in all directions, ensuring accurate connection of each welding part, effectively reducing welding defects caused by position deviation, such as uneven weld seam and misaligned weld joint, greatly improving welding accuracy and ensuring the stability and reliability of elbow welding quality.

[0014] (2) Improved welding efficiency: Operators can quickly adjust the elbow to the ideal welding angle and position, avoiding the large amount of time wasted due to frequent manual adjustments or multiple attempts. Especially in batch welding of elbows, compared with traditional equipment, this equipment can significantly shorten the welding preparation and operation time of a single elbow, and significantly improve the overall production efficiency.

[0015] (3) Simple and flexible operation: Operators can easily achieve multi-directional movement of the bend by simply controlling the start, stop and direction of the motor. This reduces the professional skills required of operators and improves the convenience and operability of the work. Attached Figure Description

[0016] Figure 1 The three-dimensional elbow welding auxiliary device provided by this utility model Figure 1 .

[0017] Figure 2 The three-dimensional elbow welding auxiliary device provided by this utility model Figure 2 .

[0018] Figure 3 This is a front view of the elbow welding auxiliary device provided by this utility model.

[0019] Figure 4 A top view of the elbow welding auxiliary device provided by this utility model.

[0020] Figure 5 for Figure 2 A magnified view of the middle S section.

[0021] Numbering on the map:

[0022] 10. First motor;

[0023] 20. Second motor;

[0024] 30. Third motor; 31. First synchronous pulley; 32. Second synchronous pulley; 33. Lead screw; 35. Slide rail;

[0025] 81. Base; 82. Fixing frame; 83. Rotating frame; 84. Lifting seat; 85. Support seat; 851. Body of the support seat; 852. Circular boss of the support seat;

[0026] 9. Elbow. Detailed Implementation

[0027] This utility model provides an auxiliary device for elbow welding. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] Please see Figures 1 to 5 This utility model provides an auxiliary device for welding elbows. The accompanying drawings are for illustrative purposes only and are not proportional to actual products. The drawings only depict structures relevant to the inventive points of this application; some conventional structures are not specifically shown. The terms "first," "second," etc., used herein are merely different names for similar structures for ease of explanation and are not intended to limit this application.

[0029] The X-axis and Y-axis directions mentioned in this article are only for illustrative purposes and are not intended to limit this application; because in practical applications the coordinate system can be changed and changing the coordinate system does not change the essence of the technical solution.

[0030] The elbow welding auxiliary device includes a base 81, a fixed frame 82, and a rotating frame 83. The fixed frame is equipped with a first driving device for driving the rotating frame to rotate around the X-axis. The bottom of the rotating frame is equipped with a lifting seat 84, which is rotatably connected to a support seat 85. The lifting seat is equipped with a second driving device for driving the support seat to rotate around the Y-axis. The rotating frame is equipped with a third driving device for driving the lifting seat to reciprocate linearly along the length of the lifting seat.

[0031] Preferably, the first driving device is a first motor 10 ( Figure 3 (This section is not directly observable from a visual perspective and is represented by dashed lines). The main shaft of the first motor is parallel to the X-axis. The rotation of the first motor can drive the rotating frame and all components mounted on the rotating frame to rotate around the X-axis.

[0032] Preferably, the second driving device is a second motor 20, the main shaft of which is parallel to the Y-axis. Rotation of the second motor can drive the support base and the elbow mounted on the support base to rotate around the Y-axis.

[0033] In practical applications, the first and second motors mentioned above can be selected as geared motors to obtain a larger output torque, ensuring that they can smoothly drive the rotating frame and support base to rotate.

[0034] Preferably, the third driving device includes a third motor 30, a lead screw 33, a lead screw nut (not shown in the figure), a slide rail 35, and a slider (not shown in the figure); the slider and the lead screw nut are respectively connected to the lifting seat; the third motor is used to drive the lead screw to rotate. The motor drives the lead screw to rotate, and the lead screw nut can move back and forth linearly along the lead screw, thereby driving the lifting seat to move back and forth linearly.

[0035] Preferably, the main shaft of the third motor is equipped with a first synchronous pulley 31, and one end of the lead screw is equipped with a second synchronous pulley 32. A synchronous belt (not shown in the figure) is wound between the first and second synchronous pulleys. The rotation of the third motor drives the first synchronous pulley 31 to rotate, which in turn drives the second synchronous belt and the lead screw to rotate via the synchronous belt (not shown in the figure). The synchronous belt drive can effectively transmit the rotational power of the third motor to the lead screw, ensuring the smoothness of power transmission. Compared with other transmission methods, the synchronous belt has good elasticity and buffering performance. During the motor start-up and stop, it can reduce the vibration and noise caused by impact, making the movement of the lifting seat smoother and more stable, thereby improving the accuracy and reliability of the entire device when adjusting the elbow position.

[0036] Preferably, the rotating frame is provided with two slide rails, each with a slider. The two slide rails and the lead screw are arranged in parallel, with the lead screw located between the two slide rails. This arrangement further improves the stability of the linear reciprocating movement of the lifting seat.

[0037] The support base 85 includes a body 851 and a circular boss 852. The circular boss and the body are connected by a flange, and the body is rotatably connected to the lifting seat. The circular boss facilitates connection with a three-jaw chuck. Since the body and the circular boss of the support base are detachably connected, in practical applications, circular bosses of different sizes can be assembled according to requirements to adapt to three-jaw chucks of different sizes.

[0038] In actual use, a three-jaw chuck (not shown in the figure) is fixedly connected to the support base. The elbow 9 is clamped and fixed by the three-jaw chuck, and then welding is performed (preferably by a welding robot for automatic welding). During the welding process, the elbow can move in three directions through the coordinated action of the first drive device, the second drive device, and the third drive device. Specifically, multi-directional movement is achieved in the following way:

[0039] Rotation around the X-axis: The first drive device on the fixed frame has its main shaft parallel to the X-axis direction. When the motor rotates, it drives the rotating frame and the lifting seat, support seat and elbow on the rotating frame to rotate around the X-axis direction, so as to realize the angle adjustment of the elbow on the horizontal plane.

[0040] Rotation around the Y-axis: The second drive device on the lifting seat has its main shaft parallel to the Y-axis. When the second motor rotates, it drives the support seat and the elbow to rotate around the Y-axis, causing the elbow to change its angle in a plane perpendicular to the X-axis.

[0041] Linear reciprocating motion: In the third drive device on the rotating frame, the third motor drives the lead screw to rotate. Since the slider and the lead screw nut are respectively connected to the lifting seat, during the process of the lead screw nut making reciprocating linear motion along the lead screw, it drives the lifting seat to reciprocate linearly along its length direction, thereby changing the position of the elbow in the linear direction.

[0042] The above analysis shows that during the welding process, through the coordinated operation of the first, second, and third drive devices, the elbow can move freely in three directions: rotation around the X-axis, rotation around the Y-axis, and reciprocating along the length of the fixed frame. Operators can flexibly adjust the elbow to the most suitable position and angle according to welding requirements, effectively solving the problem of low welding efficiency and accuracy caused by the single rotation direction or insufficient precision of the device in existing technologies, and greatly improving the welding efficiency and accuracy of multi-segment welded elbows.

[0043] It should be noted that since the use of a three-jaw chuck to clamp the elbow is existing technology, this application does not limit the three-jaw chuck, and the attached drawings do not show the three-jaw chuck.

[0044] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A welding auxiliary device for elbows, comprising a base and a fixing frame disposed on the base, characterized in that: It also includes a rotating frame, a fixed frame with a first drive device for driving the rotating frame to rotate around the X-axis; a lifting seat is provided at the bottom of the rotating frame, the lifting seat is rotatably connected to a support seat, the lifting seat is provided with a second drive device for driving the support seat to rotate around the Y-axis; and the rotating frame is provided with a third drive device for driving the lifting seat to reciprocate linearly along the length of the lifting seat.

2. The elbow welding auxiliary device according to claim 1, characterized in that: The first driving device is a first motor, and the main shaft of the first motor is parallel to the X-axis direction.

3. The elbow welding auxiliary device according to claim 1, characterized in that: The second drive device is a second motor, and the main shaft of the second motor is parallel to the Y-axis direction.

4. The elbow welding auxiliary device according to claim 1, characterized in that: The third driving device includes a third motor, a lead screw, a lead screw nut, a slide rail, and a slider; the slider and the lead screw nut are respectively connected to the lifting seat; the third motor is used to drive the lead screw to rotate.

5. The elbow welding auxiliary device according to claim 4, characterized in that: The main shaft of the third motor is equipped with a first synchronous pulley, and one end of the lead screw is equipped with a second synchronous pulley. A synchronous belt is wound between the first and second synchronous pulleys.

6. The elbow welding auxiliary device according to claim 4, characterized in that: There are two slide rails, and each slide rail has a slider.

7. The elbow welding auxiliary device according to claim 1, characterized in that: The support base includes a body and a circular boss, which are connected to the body via a flange. The body is rotatably connected to the lifting seat.

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