Novel welding tool for longitudinal beam

Abstract

The utility model discloses a novel longitudinal beam welding frock belongs to engineering machinery technical field, including the chassis, at least two settings on the centering slide of chassis, and the centering slide includes the centering base and the two pawl subassembly of sliding connection on it, two -way screw mechanism, two -way screw mechanism includes the threaded screw rod of rotation connection in the centering base, and the both ends of threaded screw rod are respectively with two pawl subassembly screw connection, drive part is connected with threaded screw rod, is used for driving its positive and negative rotation to make two pawl subassembly synchronous and move towards or move away from each other, and the positioning seat of fixed setting is on the chassis, and the top tight component is arranged on the chassis and is opposite arrangement with positioning seat, is used for tightly on the positioning seat along the length direction of the work piece of chassis. The utility model has the advantages of high adaptability, high positioning accuracy compared with other technical schemes.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a new type of longitudinal beam welding fixture. Background Technology

[0002] Currently, the welding industry for longitudinal beams suffers from drawbacks such as complex welding fixtures and poor versatility, specifically manifested as follows: 1. Inefficient: It relies on repeated manual adjustments and measurements, which is time-consuming and labor-intensive.

[0003] 2. Difficulty in guaranteeing accuracy: Manual operation has high uncertainty, making it difficult to achieve high-precision coaxiality or alignment requirements, which can easily lead to welding misalignment and affect product quality.

[0004] 3. Poor safety: The workpiece is in an unstable state during the adjustment process, posing a safety hazard.

[0005] Therefore, there is an urgent need in this field for a specialized tooling that can achieve fast, accurate, and safe alignment. Summary of the Invention

[0006] The present invention addresses the technical needs mentioned in the background section by providing a novel longitudinal beam welding fixture that enhances its versatility while maintaining high precision, stability, and work efficiency.

[0007] To achieve the above objectives, the technical solution provided by this utility model is: a novel longitudinal beam welding fixture, comprising: Base frame; At least two centering slides are provided on the base frame, each centering slide including a centering base and two claw assemblies slidably connected thereon; A bidirectional lead screw mechanism includes a threaded lead screw rotatably connected to a centering base, with both ends of the threaded lead screw threadedly connected to two claw assemblies respectively. The drive component, connected to the threaded screw, is used to drive it to rotate in both directions so that the two jaw assemblies move synchronously towards or away from each other; A positioning seat that is fixedly mounted on the base frame; The clamping assembly, mounted on the base frame and arranged opposite to the positioning seat, is used to clamp the workpiece onto the positioning seat along the length of the base frame.

[0008] In some embodiments, the driving component is a manual centering crank fixedly connected to one end of a threaded screw.

[0009] In some embodiments, the clamping component includes: The top-tightening column is fixed to the base frame; The axis of the tightening screw, which is threadedly connected to the tightening column, is parallel to the length direction of the base frame. A tightening crank that is fixedly connected to one end of the tightening screw.

[0010] In some embodiments, there are two centering slides, namely centering slide I and centering slide II, which are spaced apart along the length of the base frame.

[0011] In some embodiments, the contact surface between the jaw assembly and the workpiece is a wedge-shaped surface.

[0012] In some embodiments, a support block for supporting the workpiece is also fixedly provided on the centering base.

[0013] In some embodiments, the claw assembly is slidably connected to the centering base via a linear guide pair.

[0014] In some embodiments, the linear guide pair includes a guide shaft disposed on the centering base and a linear bearing disposed on the claw assembly and cooperating with the guide shaft.

[0015] In some embodiments, the two centering slides have the same structure.

[0016] In some embodiments, the base frame, centering slide, positioning seat and clamping assembly are detachably fixed together by bolts.

[0017] The advantages of this invention compared to existing technologies are as follows: 1. High centering accuracy: The use of a two-way screw mechanical linkage ensures the absolute synchronous movement of the two carriages, fundamentally eliminating the uncertainty of manual adjustment, and the centering accuracy is far superior to traditional methods; 2. Simple operation and high efficiency: Centering can be completed by only one person turning the handle, saving time and effort and significantly improving production efficiency; 3. Good stability and high safety: The guide shaft and linear bearing ensure smooth movement and reliable clamping of the workpiece, avoiding shaking and slippage during adjustment and welding, ensuring safe operation; 4. Strong versatility: By changing different types of positioning blocks and grippers, it can adapt to the centering requirements of various types of workpieces.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a novel longitudinal beam welding fixture according to an embodiment of the present utility model; Figure 2 for Figure 1 A top view schematic diagram of the new longitudinal beam welding fixture shown; Figure 3 for Figure 1 A front view schematic diagram of the new longitudinal beam welding fixture shown in the figure; Figure 4 for Figure 1A schematic diagram of the centering slide I shown; Figure 5 for Figure 4 A top view of the centering slide I shown; Figure 6 for Figure 4 The diagram shows a front view of the centering slide I. Figure 7 for Figure 1 The diagram shows a new type of longitudinal beam welding fixture for installing longitudinal beam workpieces. Figure 8 for Figure 7 The diagram shows a top view of the new longitudinal beam welding fixture used to install the longitudinal beam workpiece. Figure 9 for Figure 7 The diagram shows a front view of the new longitudinal beam welding fixture used to install the longitudinal beam workpiece. In the attached diagram: 1. Base frame; 2. Centering slide I; 3. Centering slide II; 4. Positioning seat; 5. Clamping assembly; 6. Workpiece; 21. Claw assembly I; 22. Support block; 23. Claw assembly II; 24. Lead screw centering and tightening assembly; 25. Centering base; 211. Wedge-shaped surface; 241. Threaded screw; 242. Centering crank handle; 51. Tighten the column; 52. Tighten the screw; 53. Tighten the crank handle. Detailed Implementation

[0020] The present invention will now be described in further detail.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] Combination Figure 1 , Figure 2 , Figure 3 As shown, the novel longitudinal beam welding fixture of this embodiment includes a base frame fixed on the ground. A centering slide I and a centering slide II are bolted to the upper left and middle sections of the base frame, and a clamping assembly is bolted to the upper right side of the base frame. A positioning seat is provided between the centering slide II and the clamping assembly, fixed to the base frame.

[0023] The clamping assembly includes a clamping column bolted to the base frame, the upper end of the clamping column connected to a clamping screw through a threaded hole, the right end of the clamping screw connected to a clamping handle through a key, and the left end of the clamping screw abutting against the workpiece.

[0024] The working principle of the clamping assembly is as follows: Manually rotating the clamping handle clockwise drives the clamping screw to rotate clockwise, engaging the clamping thread with the thread on the clamping column, causing the clamping screw to move to the left relative to the clamping column. Rotating the clamping handle counterclockwise results in the same movement as clockwise rotation; when rotating the clamping handle counterclockwise, the clamping screw moves to the right relative to the clamping column.

[0025] Combination Figure 4 , Figure 5 , Figure 6 As shown, centering slide I and centering slide II have the same structure. Centering slide I will be described as an example.

[0026] The length direction of the centering slide I is perpendicular to the length direction of the base frame. The centering slide I includes a centering base, and a threaded screw is rotatably connected to the centering base. The threaded screw is a bidirectional threaded screw and extends along the length direction of the centering base.

[0027] The right end of the threaded screw is connected to a centering crank via a key.

[0028] Combination Figure 4 , Figure 5 , Figure 6 As shown, the left and right ends of the centering base are slidably connected with claw assembly I and claw assembly II, and the lower ends of claw assembly I and claw assembly II are fixed with nuts that cooperate with the threaded screw for transmission.

[0029] The jaw assembly I and jaw assembly II have the same structure, and are arranged symmetrically about the center of the centering slide I. The upper end of jaw assembly I, where it abuts the workpiece, has a wedge-shaped surface.

[0030] Four support blocks are also fixed to the centering base by bolts to support the workpiece.

[0031] The working principle of the centering slide table I is as follows: the centering handle is manually rotated clockwise, which drives the threaded screw to rotate clockwise. The nuts of the claw assembly I and claw assembly II move in a centering translational motion under the drive of the threaded screw, thereby driving the claw assembly I and claw assembly II, which are slidably connected to the centering base, to move in a centering translational motion.

[0032] The working principle of the centering crank is the same as that of the clockwise crank. When the centering crank is rotated counterclockwise, the claw assembly I and the claw assembly II move away from each other.

[0033] In practical use, the novel longitudinal beam welding fixture of this embodiment is as follows: Combination Figure 7 , Figure 8 , Figure 9 As shown, 1. First, adjust the jaw assembly I and jaw assembly II of centering slide I and centering slide II to the minimum spacing.

[0034] 2. Hoist the longitudinal beam workpiece onto the support block, and manually rotate the centering handle counterclockwise to separate the claw assembly I and claw assembly II of the centering slide I and centering slide II and lock the workpiece.

[0035] 3. Manually rotate the tightening handle clockwise, and the tightening screw will move to the left, tightening the workpiece's positioning point to the positioning seat.

[0036] 4. At this point, all degrees of freedom of the longitudinal beam workpiece have been eliminated, and the positioning is complete.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A novel welding fixture for longitudinal beams, characterized in that, include: Base frame (1); At least two centering slides are provided on the base frame (1), each centering slide including a centering base (25) and two claw assemblies slidably connected thereto; A bidirectional lead screw mechanism, the bidirectional lead screw mechanism including a threaded lead screw (241) rotatably connected to the centering base (25), the two ends of the threaded lead screw (241) being threadedly connected to the two claw assemblies respectively; A drive component, connected to the threaded screw (241), is used to drive it to rotate in both directions so that the two jaw assemblies move synchronously toward or away from each other; Positioning seat (4) fixedly installed on the base frame (1); The clamping assembly (5) is disposed on the base frame (1) and arranged opposite to the positioning seat (4) for clamping the workpiece (6) along the length direction of the base frame (1) onto the positioning seat (4).

2. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The driving component is a manual centering crank (242) fixedly connected to one end of the threaded screw (241).

3. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The clamping assembly (5) includes: The top-tightening column (51) is fixed on the base frame (1). The tightening screw (52) is threadedly connected to the tightening column (51), and its axis is parallel to the length direction of the base frame (1); A tightening handle (53) is fixedly connected to one end of the tightening screw (52).

4. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The number of centering slides is two, namely centering slide I (2) and centering slide II (3), which are spaced apart along the length of the base frame (1).

5. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The contact surface between the claw assembly and the workpiece (6) is a wedge-shaped surface (211).

6. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The centering base (25) is also fixedly provided with a support block (22) for supporting the workpiece (6).

7. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The claw assembly is slidably connected to the centering base (25) via a linear guide pair.

8. The novel longitudinal beam welding fixture according to claim 7, characterized in that, The linear guide pair includes a guide shaft disposed on the centering base (25) and a linear bearing disposed on the claw assembly and cooperating with the guide shaft.

9. The novel longitudinal beam welding fixture according to claim 1, characterized in that, The two centering slides have the same structure.

10. The novel longitudinal beam welding fixture according to any one of claims 1 to 9, characterized in that, The base frame (1), centering slide, positioning seat (4) and clamping assembly (5) are detachably fixed together by bolts.

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