Automobile tubular beam welding clamp

By designing an automotive tube beam welding fixture with an adjustment and lifting mechanism, the problem of difficult adjustment of the positioning distance of existing fixtures has been solved, realizing stable fixing and position adjustment of tube beams of different lengths, and improving the convenience and stability of welding.

CN224129017UActive Publication Date: 2026-04-17SUIZHOU SHENGXING MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUIZHOU SHENGXING MACHINERY
Filing Date
2025-03-26
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing automotive tube beam welding fixtures have difficulty adjusting the positioning distance, resulting in reduced clamping stability for shorter tube beams.

Method used

A welding fixture for automotive tube beams, including an adjustment mechanism and a lifting mechanism, was designed. The distance of the positioning device is adjusted by a motor-driven gear transmission and a lead screw, and the height is adjusted by an electric push rod, so as to achieve stable fixing of tube beams of different lengths.

Benefits of technology

This technology enables stable fixing and position adjustment of automotive tube beams of different lengths, improving the convenience and stability of welding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224129017U_ABST
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Abstract

The utility model relates to an automobile pipe beam welding processing clamp which comprises a connecting seat, a cylinder body which is rotatably connected in the connecting seat through a bearing and two positioning devices which are arranged on the left side and the right side of the cylinder body, and an adjusting mechanism which is used for adjusting the distance between the two positioning devices is arranged in the cylinder body. A lifting mechanism for adjusting the height of the barrel body is arranged below the connecting seat, and a base is vertically arranged below the connecting seat. According to the welding machining clamp for the automobile tubular beam, a second motor is started, so that two movable sleeves start to move oppositely or oppositely, the distance between two positioning devices is adjusted according to the length of the automobile tubular beam to be machined so that the automobile tubular beams with different lengths can be fixed conveniently, and a first gear can further drive a second gear to rotate by starting a first motor; and the cylinder body starts to rotate, so that the position of the fixed automobile tubular beam is adjusted, the automobile tubular beam can be welded to the welding position more conveniently, and the advantages that the distance between the automobile tubular beams can be adjusted and positioned conveniently and the like are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive tube beam processing technology, specifically an automotive tube beam welding processing fixture. Background Technology

[0002] Automotive tubular beams are one of the important components of the automotive chassis, serving to fix the chassis and provide a collimation surface. Due to the significant differences between car models, different automotive tubular beams have different sizes, so different automotive tubular beams need to be welded.

[0003] For example, Chinese patent CN218135965U discloses a welding fixture for automotive tube beams, which includes a main rod. An installation structure is installed on the left side of the main rod. A rotating motor is fixedly connected to the middle of the right side of the main rod through a connecting block. A crossbar is rotatably connected to the top of the right side of the main rod. The left end of the crossbar passes through the main rod and extends to the left side of the main rod.

[0004] The aforementioned automotive tube beam welding fixture has certain shortcomings. It can rotate the clamping structure by driving the crossbar to rotate via a rotating motor, thereby adjusting the welding angle. However, it is difficult to adjust the distance between the automotive tube beams. For some shorter automotive tube beams, it can only clamp and fix them on one side, which reduces stability. Therefore, this application proposes an automotive tube beam welding fixture to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a welding fixture for automotive tube beams, which has advantages such as easy adjustment and positioning of the distance between automotive tube beams. It solves the problem that some shorter automotive tube beams can only be clamped and fixed from one side, resulting in reduced stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for automotive tube beams, comprising a connecting seat, a cylinder rotatably connected to the connecting seat via bearings, and two positioning devices disposed on the left and right sides of the cylinder. The cylinder is provided with an adjustment mechanism for adjusting the distance between the two positioning devices. A lifting mechanism for adjusting the height of the cylinder is provided below the connecting seat. A base is provided vertically below the connecting seat.

[0007] Furthermore, the adjustment mechanism includes a first motor installed inside the connecting seat. A first gear is welded to the outside of the output shaft of the first motor, and a second gear meshes with the outside of the first gear. A second motor is fixed to the back wall of the inner cavity of the cylinder. A first bevel gear is fixed to the outside of the output shaft of the second motor. A second bevel gear meshes with the outside of the first bevel gear. A connecting rod is welded inside the second bevel gear. Lead screws are welded to both ends of the connecting rod, and the threads of the two lead screws are in opposite directions. Movable sleeves are threaded to the outside of both lead screws.

[0008] Furthermore, the second gear is welded to the outside of the cylinder, and a cavity for placing the first motor is provided on the front side of the connecting seat.

[0009] Furthermore, two positioning strips are fixed to the outer sides of both movable sleeves, and a positioning groove is provided on the inner wall of the inner cavity of the cylinder to slide horizontally with the positioning strips.

[0010] Furthermore, both positioning devices consist of a connecting plate and an electric clamp welded to the top of the connecting plate, and the two connecting plates are respectively welded to opposite sides of the two movable sleeves.

[0011] Furthermore, the lifting mechanism includes a column vertically welded to the center of the top of the base, a movable cylinder that slides vertically on the outer side of the column, and an electric push rod fixed to the inner top wall of the movable cylinder.

[0012] Furthermore, the column is welded to the outside of the output shaft of the electric push rod, and two slide rails are vertically fixed to the inner wall of the inner cavity of the movable cylinder. A slider that is slidably connected to the slide rails is fixed to the outside of the column.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This automotive tube beam welding fixture, by starting the second motor, causes two movable sleeves to move relative to or away from each other. The distance between the two positioning devices can be adjusted according to the length of the automotive tube beam to be processed, thus facilitating the fixing of automotive tube beams of different lengths. Starting the first motor can also cause the first gear to drive the second gear to rotate, causing the cylinder to rotate, thereby adjusting the position of the fixed automotive tube beam, making it easier to weld with the welding point, achieving advantages such as easy adjustment of the distance between the positioned automotive tube beams. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0017] Figure 3This is a perspective view of the movable sleeve structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model.

[0019] In the diagram: 1 Connecting seat, 2 Adjusting mechanism, 201 First motor, 202 First gear, 203 Second gear, 204 Second motor, 205 First bevel gear, 206 Second bevel gear, 207 Connecting rod, 208 Lead screw, 209 Movable sleeve, 3 Cylinder, 4 Lifting mechanism, 401 Column, 402 Movable cylinder, 403 Electric push rod, 5 Base, 6 Positioning device. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 This embodiment of an automotive tube beam welding fixture includes a connecting seat 1, a cylinder 3 rotatably connected to the connecting seat 1 via bearings, and two positioning devices 6 disposed on the left and right sides of the cylinder 3. The cylinder 3 is provided with an adjustment mechanism 2 for adjusting the distance between the two positioning devices 6. A lifting mechanism 4 for adjusting the height of the cylinder 3 is provided below the connecting seat 1. A base 5 is provided vertically below the connecting seat 1.

[0022] Understandably, the base 5 can be fixed to the processing area with bolts.

[0023] Please see Figures 2 to 3 In this embodiment, the adjustment mechanism 2 includes a first motor 201 installed inside the connecting seat 1. A first gear 202 is welded to the outside of the output shaft of the first motor 201. A second gear 203 meshes with the outside of the first gear 202. A second motor 204 is fixed to the back wall of the inner cavity of the cylinder 3. A first bevel gear 205 is fixed to the outside of the output shaft of the second motor 204. A second bevel gear 206 meshes with the outside of the first bevel gear 205. A connecting rod 207 is welded inside the second bevel gear 206. A lead screw 208 is welded to both ends of the connecting rod 207, and the two lead screws 208 have opposite thread directions. A movable sleeve 209 is threaded to the outside of both lead screws 208.

[0024] The second gear 203 is welded to the outside of the cylinder 3. A cavity for placing the first motor 201 is opened on the front side of the connecting seat 1. Two positioning strips are fixed on the outer sides of the two movable sleeves 209. The inner wall of the inner cavity of the cylinder 3 is provided with a positioning groove that slides horizontally with the positioning strip. By starting the second motor 204, the two lead screws 208 can start to rotate. Since the inner wall of the inner cavity of the cylinder 3 is provided with a positioning groove that slides horizontally with the positioning strip, the two movable sleeves 209 can start to move relative to each other or away from each other. The distance between the two positioning devices 6 can be adjusted according to the length of the automobile tube beam to be processed, so as to facilitate the fixing of automobile tube beams of different lengths. The two positioning devices 6 are composed of a connecting plate and an electric clamp welded to the top of the connecting plate. The two connecting plates are respectively welded to the opposite side of the two movable sleeves 209.

[0025] It is understandable that starting the first motor 201 can also cause the first gear 202 to drive the second gear 203 to rotate, so that the cylinder 3 starts to rotate, thereby adjusting the position of the fixed automobile tube beam, making it easier to weld with the welding point.

[0026] Please see Figure 4 In this embodiment, the lifting mechanism 4 includes a column 401 vertically welded to the center of the top of the base 5, a movable cylinder 402 sliding vertically on the outer side of the column 401, and an electric push rod 403 fixed to the inner top wall of the movable cylinder 402.

[0027] The column 401 is welded to the outside of the output shaft of the electric push rod 403. Two slides are vertically fixed to the inner wall of the inner cavity of the movable cylinder 402. A slider that is slidably connected to the slide is fixed to the outside of the column 401. After the fixing is completed, the fixed automobile tube beam can be raised or lowered by starting the electric push rod 403.

[0028] Understandably, by activating the second motor 204, the two movable sleeves 209 begin to move relative to or away from each other. The distance between the two positioning devices 6 is adjusted according to the length of the automotive tube beam to be processed, thus facilitating the fixing of automotive tube beams of different lengths. Activating the first motor 201 can also cause the first gear 202 to drive the second gear 203 to rotate, causing the cylinder 3 to start rotating, thereby adjusting the position of the fixed automotive tube beam, making it easier to weld with the welding point, and achieving advantages such as easy adjustment of the distance between the positioning automotive tube beams.

[0029] All electrical components mentioned in this article are electrically connected to the main controller and power supply, and all electrical components mentioned are conventional and known devices. This application will not elaborate further. The main controller can be a conventional and known device such as a computer that performs control. The control circuit of the main controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. At the same time, any parts of this utility model that are not described in detail are all common technologies known to those skilled in the art.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The working principle of the above embodiments is as follows:

[0032] When the automotive tube beam welding fixture is needed, the two lead screws 208 can be started to rotate by starting the second motor 204. Since the inner wall of the inner cavity of the cylinder 3 has a positioning groove that slides horizontally with the positioning strip, the two movable sleeves 209 can start to move relative to each other or away from each other. At this time, the distance between the two positioning devices 6 can be adjusted according to the length of the automotive tube beam to be processed, so as to facilitate the fixing of automotive tube beams of different lengths. After fixing, the height of the fixed automotive tube beam can be raised or lowered by starting the electric push rod 403. At the same time, starting the first motor 201 can also cause the first gear 202 to drive the second gear 203 to rotate, so that the cylinder 3 starts to rotate, thereby adjusting the position of the fixed automotive tube beam, making it easier to weld with the welding point.

[0033] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 welding fixture for automotive tube beams, comprising a connecting seat (1), a cylindrical body (3) rotatably connected to the connecting seat (1) via bearings, and two positioning devices (6) disposed on the left and right sides of the cylindrical body (3), characterized in that: The cylinder (3) is provided with an adjustment mechanism (2) for adjusting the distance between the two positioning devices (6), and a lifting mechanism (4) for adjusting the height of the cylinder (3) is provided below the connecting seat (1). A base (5) is provided vertically below the connecting seat (1).

2. The fixture according to claim 1, wherein: The adjustment mechanism (2) includes a first motor (201) installed inside the connecting seat (1). A first gear (202) is welded to the outside of the output shaft of the first motor (201). A second gear (203) meshes with the outside of the first gear (202). A second motor (204) is fixed to the back wall of the inner cavity of the cylinder (3). A first bevel gear (205) is fixed to the outside of the output shaft of the second motor (204). A second bevel gear (206) meshes with the outside of the first bevel gear (205). A connecting rod (207) is welded inside the second bevel gear (206). A lead screw (208) is welded to both ends of the connecting rod (207), and the two lead screws (208) have opposite thread directions. A movable sleeve (209) is threaded to the outside of both lead screws (208).

3. The fixture of claim 2, wherein: The second gear (203) is welded to the outside of the cylinder (3), and the front side of the connecting seat (1) is provided with a cavity for placing the first motor (201).

4. The fixture of claim 2, wherein: Two positioning strips are fixed on the outer sides of the two movable sleeves (209), and the inner wall of the inner cavity of the cylinder (3) is provided with a positioning groove that slides horizontally with the positioning strips.

5. The fixture of claim 2 wherein: Both positioning devices (6) consist of a connecting plate and an electric clamp welded to the top of the connecting plate, and the two connecting plates are respectively welded to the opposite sides of the two movable sleeves (209).

6. The fixture of claim 1 wherein: The lifting mechanism (4) includes a column (401) vertically welded to the center of the top of the base (5), a movable cylinder (402) sliding vertically on the outer side of the column (401), and an electric push rod (403) fixed on the inner top wall of the movable cylinder (402).

7. The fixture of claim 6 wherein: The column (401) is welded to the outside of the output shaft of the electric push rod (403). The inner wall of the inner cavity of the movable cylinder (402) has two slides fixed vertically. The outside of the column (401) is fixed with a slider that is slidably connected to the slides.

Citation Information

Patent Citations

  • Automobile tubular beam welding clamp

    CN218135965U