Adjustable fixture for welding a front crash beam assembly

By designing adjustable fixtures, the applicability and automation issues of traditional fixtures were solved, enabling efficient and precise multi-variety, small-batch production, and improving welding quality and efficiency.

CN224587366UActive Publication Date: 2026-08-04SICHUAN CHENGDE MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN CHENGDE MACHINERY
Filing Date
2025-08-25
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional welding fixtures are complex in structure and inconvenient to operate, unable to adapt to the rapid switching of products of different specifications, and have a low degree of automation, making it difficult to meet the needs of multi-variety, small-batch production.

Method used

An adjustable clamp is designed, comprising a clamp base, a gantry frame, and an electric telescopic rod. The clamping assembly is driven by a motor to achieve automated control. The chuck is detachable to adapt to different models, and the clamping assembly is adjustable to adapt to different sizes, making it suitable for use with welding robots.

Benefits of technology

It improves welding positioning accuracy and stability, simplifies operation procedures, reduces worker training time, adapts to multi-variety production, and enhances automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a front anti -collision crossbeam subassembly welding is with adjustable clamp, including clamp base, be equipped with door type frame on the clamp base, be equipped with a pair of clamping assembly on the door type frame, clamping assembly includes electric telescopic handle and mounting seat, electric telescopic handle sets up on mounting seat, and the output of electric telescopic handle is equipped with push block, mounting seat and door type frame slide cooperation, and the both sides symmetry of door type frame are equipped with chuck, and this chuck detachable connection is in chuck seat, and chuck seat bottom is connected with mounting seat through swing clamping arm and driven swing arm, the top of swing clamping arm and driven swing arm is rotatably connected with chuck seat, and the bottom is rotatably connected with mounting seat, and the bottom end surface of swing clamping arm is arc tooth surface, and the lateral surface of push block is equipped with tooth surface and arc tooth surface engagement. The utility model discloses simple structure, convenient operation can adapt to the clamping of different models of anti -collision crossbeam, and the workpiece of different size is adapted, and it is favorable to realize the automatic production.
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Description

Technical Field

[0001] This utility model relates to the field of industrial production, specifically an adjustable clamp for welding a front anti-collision crossbeam assembly. Background Technology

[0002] As a core component of a vehicle's passive safety system, the welding quality of the front bumper beam directly affects the vehicle's collision protection performance. With the diversification and lightweighting of vehicle models, the materials and structures of the front bumper beam are becoming increasingly complex, placing higher demands on the positioning accuracy and clamping stability during the welding process. Traditional welding fixtures are mostly fixed structures or manually adjustable, making it difficult to adapt to the rapid switching between different product specifications, and manual operation is prone to positioning deviations.

[0003] Current traditional fixtures have many shortcomings:

[0004] Firstly, the complex structure and inconvenient operation increase worker training time;

[0005] Secondly, it is only applicable to specific models of anti-collision beams and cannot meet the needs of multi-variety, small-batch production.

[0006] Third, the adjustment range is limited and cannot adapt to workpieces of different sizes;

[0007] Fourth, it has a low level of automation and cannot be integrated with modern welding robots.

[0008] Therefore, how to solve the technical problems existing in the prior art has become an urgent problem for those skilled in the art. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an adjustable clamp for welding front anti-collision crossbeam components, which can completely solve the technical problems existing in the prior art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] An adjustable clamp for welding a front bumper beam assembly includes a clamp base, a gantry frame on the clamp base, and a pair of clamping components on the gantry frame;

[0012] The clamping assembly includes an electric telescopic rod and a mounting base. The electric telescopic rod is mounted on the mounting base, and a push block is provided at the output end of the electric telescopic rod. A T-shaped slider is provided on the top surface of the mounting base, and a corresponding T-shaped groove is provided on the gantry frame. The T-shaped slider and the T-shaped groove slide in a sliding fit. A clamp is symmetrically provided on both sides of the gantry frame. The clamp is detachably connected to the clamp seat. The bottom of the clamp seat is connected to the mounting base through a swing arm and a driven swing arm. The top ends of the swing arm and the driven swing arm are rotatably connected to the clamp seat, and the bottom ends are rotatably connected to the mounting base. The bottom end face of the swing arm is an arc-shaped toothed surface, and the side of the push block is provided with a toothed surface that meshes with the arc-shaped toothed surface.

[0013] Furthermore, the bottom surface of the mounting base is provided with a fixed seat, and a mounting groove is opened on the fixed seat, in which the electric telescopic rod is fixed.

[0014] Furthermore, a T-shaped slot is provided on the chuck seat, and a T-shaped insert is provided on the chuck. The T-shaped insert is inserted into the T-shaped slot. A locking bolt is provided on the chuck seat, and a corresponding locking screw hole is provided on the chuck.

[0015] Furthermore, a motor is installed on the gantry frame, a drive gear is installed at the output end of the motor, and a rack is provided on the fixed base, which meshes with the drive gear.

[0016] Furthermore, the motor is mounted on the bottom surface of the gantry frame and located between the two clamping components.

[0017] Furthermore, a detachable motor bracket is attached to the gantry frame, and the motor is fixed to the motor bracket.

[0018] Furthermore, the gantry frame is equipped with a protective shell, and the motor is placed inside the protective shell.

[0019] Furthermore, the swing angle range of the swinging clamp is 0-60°.

[0020] Furthermore, the working surface of the chuck is provided with a rubber pad, and the surface of the rubber pad is provided with anti-slip texture.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] 1. Simple structure and easy operation, which helps reduce worker training time;

[0023] 2. The clamping chucks of the clamping assembly are replaceable, thus adapting to the clamping of different models of anti-collision beams, thereby meeting the needs of multi-variety, small-batch production;

[0024] 3. The clamping components can be freely adjusted to accommodate workpieces of different sizes;

[0025] 4. The drive components use an electric telescopic rod and a motor, which facilitates automation and allows it to be used in conjunction with welding robots. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the clamping component structure in this utility model;

[0028] Figure 3 This diagram shows the fit between the chuck and the chuck seat in this utility model.

[0029] Figure 4 This is a diagram showing the connection relationship between the motor and the gantry frame in this utility model.

[0030] In the diagram: 1. Fixture base; 101. Gantry frame; 2. Clamping assembly; 201. Electric telescopic rod; 202. Mounting seat; 203. Push block; 204. T-shaped slider; 205. Chuck; 206. Chuck seat; 207. Swinging arm; 208. Driven swing arm; 209. T-shaped slide groove; 3. Fixed seat; 4. Mounting groove; 5. T-shaped insert; 6. Locking bolt; 7. Motor; 8. Drive gear; 9. Rack; 10. Motor bracket; 11. Protective shell; 12. Rubber pad. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-4 An adjustable clamp for welding a front anti-collision beam assembly includes a clamp base 1, on which a gantry frame 101 is provided, and a pair of clamping components 2 are provided on the gantry frame 101.

[0033] The clamping assembly 2 includes an electric telescopic rod 201 and a mounting base 202. The electric telescopic rod 201 is mounted on the mounting base 202. The output end of the electric telescopic rod 201 is provided with a push block 203. The top surface of the mounting base 202 is provided with a T-shaped slider 204. A T-shaped groove 209 is correspondingly opened on the gantry frame 101. The T-shaped slider 204 slides in cooperation with the T-shaped groove 209. A clamp 205 is symmetrically provided on both sides of the gantry frame 101. The clamp 205 is detachably connected to the clamp seat 206. The bottom of the clamp seat 206 is connected to the mounting base 202 through a swing clamp arm 207 and a driven swing arm 208. The top ends of the swing clamp arm 207 and the driven swing arm 208 are rotatably connected to the clamp seat 206, and the bottom ends are rotatably connected to the mounting base 202. The bottom surface of the swing clamp arm 207 is an arc-shaped toothed surface. The two sides of the push block 203 are provided with toothed surfaces that mesh with the arc-shaped toothed surface.

[0034] Specifically, the top surface of the mounting base 202 and the bottom surface of the chuck base 202 are respectively provided with through slots. The top ends of the swing arm 207 and the driven swing arm 208 extend into the through slots and are rotatably connected to the chuck base 206 through a rotating shaft. The bottom ends extend into the through slots and are rotatably connected to the mounting base 202 through a rotating shaft.

[0035] In this embodiment, the bottom surface of the mounting base 202 is provided with a fixing base 3, and a mounting groove 4 is formed on the fixing base 3. The electric telescopic rod 201 is fixed in the mounting groove 4. This protects the electric telescopic rod 201 and also serves to prevent dust.

[0036] The chuck seat 206 has a T-shaped slot, and the chuck 205 has a T-shaped insert 5. The T-shaped insert 5 is inserted into the T-shaped slot. The chuck seat 206 has a locking bolt 6, and the chuck 205 has a corresponding locking screw hole.

[0037] This structural design facilitates the replacement of the chuck 205, thereby enabling it to adapt to different models of front bumper beam assemblies and improving the applicability of the clamp.

[0038] In this embodiment, a motor 7 is mounted on the gantry frame 101, and a drive gear 8 is mounted on the output end of the motor 7. A rack 9 is provided on the fixed base 3, and the rack 9 meshes with the drive gear 8. The motor 7 is located on the bottom surface of the gantry frame 101 and between the two clamping components 2.

[0039] The motor 7 drives the drive gear 8 to rotate, and the rack 9 meshes with the drive gear 8, which can drive the two clamping components 2 to move closer or further apart.

[0040] A detachable motor bracket 10 is connected to the gantry frame 101, and the motor 7 is fixed to the motor bracket 10. A protective shell 11 is provided on the gantry frame 101, and the motor 7 is placed inside the protective shell 11. The protective shell 11 protects the motor 7 and serves to prevent dust and debris from entering.

[0041] The swing angle range of the swing arm 207 is 0-60°. This angle range design ensures that the chuck 205 can firmly clamp the front bumper beam assembly of the car. The working surface of the chuck 205 is provided with a rubber pad 12, and the surface of the rubber pad 12 is provided with anti-slip texture.

[0042] This structural design helps to avoid scratching the workpiece on the fixture surface, reduce quality problems such as unevenness and scratches on the workpiece surface, and improve the product qualification rate.

[0043] During operation, the workpiece is placed on the top surface of the gantry frame 101, the electric telescopic rod 201 is activated, and the push block 203 is moved down, thereby causing the swaying clamp arm 207 to move the clamps 205 on both sides of the gantry frame 101 closer to each other, thus firmly clamping the workpiece.

[0044] The electric telescopic rod 201 and the motor 7 can be controlled by a controller and cooperate with the welding robot to improve the level of automation.

[0045] 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.

[0046] 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. An adjustable fixture for welding a front crash cross member assembly, characterized by: Includes a clamp base (1), on which a gantry frame (101) is provided, and on the gantry frame (101) a pair of clamping components (2); The clamping assembly (2) includes an electric telescopic rod (201) and a mounting base (202). The electric telescopic rod (201) is mounted on the mounting base (202). The output end of the electric telescopic rod (201) is provided with a push block (203). The top surface of the mounting base (202) is provided with a T-shaped slider (204). A corresponding T-shaped groove (209) is opened on the gantry frame (101). The T-shaped slider (204) slides in cooperation with the T-shaped groove (209). Clamps are symmetrically provided on both sides of the gantry frame (101). (205) The chuck (205) is detachably connected to the chuck seat (206). The bottom of the chuck seat (206) is connected to the mounting base (202) through the swing arm (207) and the driven swing arm (208). The top of the swing arm (207) and the driven swing arm (208) are rotatably connected to the chuck seat (206), and the bottom is rotatably connected to the mounting base (202). The bottom surface of the swing arm (207) is an arc-shaped tooth surface, and the side of the push block (203) is provided with a tooth surface that meshes with the arc-shaped tooth surface.

2. An adjustable fixture for welding a front crash beam assembly according to claim 1, characterized in that: The mounting base (202) has a fixed base (3) on its bottom surface, and a mounting groove (4) is opened on the fixed base (3). The electric telescopic rod (201) is fixed in the mounting groove (4).

3. An adjustable fixture for welding a front crash beam assembly according to claim 2, characterized in that: The chuck seat (206) has a T-shaped slot, and the chuck (205) has a T-shaped insert (5). The T-shaped insert (5) is inserted into the T-shaped slot. The chuck seat (206) has a locking bolt (6), and the chuck (205) has a corresponding locking screw hole.

4. An adjustable fixture for welding a front crash beam assembly according to claim 3, characterized in that: A motor (7) is installed on the gantry frame (101), and a drive gear (8) is installed at the output end of the motor (7). A rack (9) is provided on the fixed seat (3), and the rack (9) meshes with the drive gear (8).

5. An adjustable fixture for welding a front crash beam assembly according to claim 4, characterized in that: The motor (7) is located on the bottom surface of the gantry frame (101) and between the two clamping components (2).

6. An adjustable fixture for welding a front crash beam assembly according to claim 5, characterized in that: The gantry frame (101) is detachably connected to a motor bracket (10), and the motor (7) is fixed on the motor bracket (10).

7. An adjustable clamp for welding a front bumper beam assembly according to claim 6, characterized in that: The gantry frame (101) is provided with a protective shell (11), and the motor (7) is placed inside the protective shell (11).

8. An adjustable fixture for welding a front crash cross-car beam assembly according to any one of claims 1-7, characterized in that: The swing angle range of the swing arm (207) is 0-60°.

9. An adjustable fixture for welding a front crash cross-car beam assembly according to any one of claims 1-7, characterized in that: The working surface of the chuck (205) is provided with a rubber pad (12), and the surface of the rubber pad is provided with anti-slip texture.