Carriage floor weldment assembly welding aid

Abstract

This utility model discloses an auxiliary welding fixture for a vehicle floor assembly, relating to the field of welding fixture technology. The utility model includes a frame body with first sliding grooves on both sides. An edge support mechanism and a crossbeam mechanism are slidably connected inside the first sliding grooves. Second sliding grooves are formed on both sides of the bottom of the frame body, with a support mechanism slidably connected inside the second sliding grooves. By setting up the first sliding grooves, edge support mechanisms, crossbeam mechanisms, and support mechanisms, and through sliding guide positioning, this utility model allows for rapid adjustment to adapt to different frame shapes. Utilizing a modular structure, different numbers of structures can be slid out as needed to adapt to different vehicle models. After adjustment, rigid locking is achieved. This solves the problems of low efficiency, poor precision, and weak adaptability of traditional wooden block supports, enabling rapid clamping and precise welding, while improving adaptability and achieving universality across multiple vehicle models, thus increasing production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to auxiliary tooling for welding the assembly of the car body floor weldment. Background Technology

[0002] During the welding process of the carriage floor, the frame position needs to be set first, then the crossbeams are filled into the frame and welded. After that, the frame is flipped over and two longitudinal beams of the same length as the carriage floor are welded on the bottom. Finally, it is flipped over again and the panel is placed in for final welding.

[0003] When welding the existing carriage floor, wooden blocks are usually placed on the ground for support before the frame of the carriage floor is placed. During placement, the position of the frame steel needs to be repeatedly adjusted to ensure that it meets the requirements, which takes a lot of time. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide auxiliary welding fixtures for the assembly of the carriage floor welded parts, so as to solve the technical problem of needing to repeatedly adjust the position of the frame steel during placement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding auxiliary tooling for the assembly of the car body floor welded parts, including a frame body, with first sliding grooves on both sides of the frame body, and corner support mechanisms and crossbeam mechanisms slidably connected inside the first sliding grooves; and second sliding grooves on both sides of the bottom of the frame body, with support mechanisms slidably connected inside the second sliding grooves.

[0006] By adopting the above technical solution, through the modularization of the first and second sliding grooves, the corner supports, crossbeams, and bracket mechanisms can move freely along the sliding grooves, quickly adapting to the size and shape of different carriage floor plates and reducing manual adjustment time.

[0007] Furthermore, the corner support mechanism includes a first support plate, and a first sliding block is fixedly connected to the bottom of the first support plate.

[0008] By adopting the above technical solution, the first support plate directly lifts the corners of the frame, providing rigid support and avoiding the frame tilting problem caused by the easy deformation of traditional wooden blocks. At the same time, it avoids the problem of wooden blocks moving when placed, and simple fixing operation can be achieved through embedded magnets.

[0009] Furthermore, a first pressure rod is threadedly connected to one side of the first sliding block, and a first observation groove is provided on the top of one side of the first sliding block.

[0010] By adopting the above technical solution, the first pressure rod is locked at the corner position by the thread, which is simple to operate and has a stable clamping force, preventing the frame from shifting during the welding process.

[0011] Furthermore, the beam mechanism includes a second sliding block, the top of which is slidably connected to a sliding plate.

[0012] By adopting the above technical solution, the second sliding block moves along the first sliding groove and is quickly positioned to the inner side of the frame reinforcement beam, reducing manual measurement time. The second sliding block also has an observation groove on one side, allowing workers to directly visually view the positioning marks on the frame body to ensure alignment, reducing positioning time and improving positioning efficiency.

[0013] Furthermore, several limiting grooves are provided on both sides of the sliding plate, and a pressure block is provided on the front side of the sliding plate.

[0014] By adopting the above technical solution, the limiting groove can be inserted into reinforcing beams of different widths through multiple sets of slots, significantly improving its versatility.

[0015] Furthermore, a second pressure rod is threadedly connected to one side of the second sliding block, and a third pressure rod is threadedly connected to the top of one side of the second sliding block. The third pressure rod is used to fix the sliding plate.

[0016] By adopting the above technical solution, the second pressure rod is laterally locked to the second sliding block, ensuring that the crossbeam mechanism is fixed in the horizontal direction and avoiding dimensional errors caused by displacement due to welding.

[0017] Furthermore, the support mechanism includes a third sliding block, which is bolted to a mounting plate.

[0018] By adopting the above technical solution, the third sliding block moves along the second sliding groove and is quickly positioned below the longitudinal beam, thereby enabling rapid adjustment of the position of the crossbeam.

[0019] Furthermore, a second support plate is slidably connected to the mounting plate, and an adjusting bolt is rotatably connected to the bottom of the second support plate. The adjusting bolt is threadedly connected to the mounting plate.

[0020] By adopting the above technical solution, the adjusting bolt drives the second support plate to rise and fall through the thread, accurately matching the height position of the crossbeam, replacing the traditional shim stacking method. The second support plate can also achieve stable fixation of the crossbeam through embedded magnets.

[0021] Furthermore, support rods are fixedly connected to both sides of the main frame body, and the support rods are used to flip the main frame body.

[0022] By adopting the above technical solution, the support rod provides a stable fulcrum, and the frame body can be flipped over as a whole after welding, which facilitates continuous welding on the back of the base plate.

[0023] Furthermore, the main frame includes a U-shaped frame and a sliding frame, the sliding frame being fixed to the U-shaped frame by bolts.

[0024] By adopting the above technical solution, the U-shaped frame and the sliding frame are separate, and the distance between the two can be adjusted by sliding to adapt to different vehicle body lengths without the need to change tooling.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model, by setting a first sliding groove, a corner support mechanism, a crossbeam mechanism and a bracket mechanism, and through sliding guide positioning, can quickly adjust to adapt to different frames. Utilizing a modular structure, different numbers of structures can be slid out as needed to adapt to different vehicle models. After adjustment, rigid locking is achieved, which solves the problems of low efficiency, poor precision and weak adaptability of traditional wooden block support. It achieves rapid clamping and precise welding, while improving adaptability, realizing universality for multiple vehicle models, and improving production efficiency.

[0027] 2. This utility model improves the adjustment range by setting up a U-shaped frame and a sliding frame, adapting to different vehicle models, enhancing overall adaptability, and simplifying operation. The entire process from "coarse adjustment → fine adjustment → locking" can be completed quickly by a single person, achieving full degree of freedom in adaptation and significantly improving the efficiency of multi-vehicle mixed-line production. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the corner support mechanism of this utility model;

[0031] Figure 4 This is a three-dimensional structural diagram of the beam mechanism of this utility model;

[0032] Figure 5 This is a three-dimensional structural diagram of the support mechanism of this utility model;

[0033] Figure 6 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0034] Figure 7 This is a schematic diagram of the exploded structure of Embodiment 2 of this utility model.

[0035] In the diagram: 1. Main frame; 101. U-shaped frame; 102. Sliding frame; 2. First sliding groove; 3. Corner support mechanism; 301. First support plate; 302. First sliding block; 303. First pressure rod; 304. First observation slot; 4. Crossbeam mechanism; 401. Second sliding block; 402. Sliding plate; 403. Limiting groove; 404. Pressure block; 405. Second pressure rod; 406. Third pressure rod; 5. Second sliding groove; 6. Support mechanism; 601. Third sliding block; 602. Mounting plate; 603. Second support plate; 604. Adjusting bolt; 7. Support rod. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Example 1:

[0038] Auxiliary tooling for welding the assembly of the carriage floor welded parts, such as Figures 1-7 As shown, the frame body 1 includes a first sliding groove 2 on both sides of the frame body 1. The corner support mechanism 3 and the crossbeam mechanism 4 are slidably connected inside the first sliding groove 2. The bottom sides of the frame body 1 have a second sliding groove 5. The support mechanism 6 is slidably connected inside the second sliding groove 5. The frame body 1 serves as an integrated base, which fixes multiple functional mechanisms in a unified manner, avoiding the positioning deviation caused by the dispersed support in traditional welding and improving the overall stability.

[0039] See Figure 4 The corner support mechanism 3 includes a first support plate 301, and a first sliding block 302 is fixedly connected to the bottom of the first support plate 301. The first sliding block 302 cooperates with the first sliding groove 2 to realize flexible adjustment of the corner support position and cover the corner spacing requirements of different vehicle models.

[0040] See Figure 4 The first sliding block 302 is threadedly connected to a first pressure rod 303 on one side. A first observation groove 304 is provided on the top of one side of the first sliding block 302. The first observation groove 304 allows workers to directly observe the positioning marks on the frame body 1, ensuring that the corner supports are aligned with the preset baseline, reducing positioning time and improving positioning efficiency.

[0041] See Figure 5 The beam mechanism 4 includes a second sliding block 401, and a sliding plate 402 is slidably connected to the top of the second sliding block 401. The vertical sliding of the sliding plate 402 and the second sliding block 401 supports the adjustment of the height of the reinforcing beam and adapts to frames and beams with different cross-sectional dimensions.

[0042] See Figure 5 The sliding plate 402 has several limiting grooves 403 on both sides, and a pressure block 404 is provided on the front side of the sliding plate 402. The pressure block 404 presses down to reinforce the inner wall of the beam, and works with the limiting grooves to form a bidirectional limiting, preventing the beam from shifting during the welding process.

[0043] See Figure 5 The second sliding block 401 is threadedly connected to a second pressure rod 405 on one side, and a third pressure rod 406 is threadedly connected to the top of one side of the second sliding block 401. The third pressure rod 406 is used to fix the sliding plate 402. The third pressure rod 406 vertically locks the height of the sliding plate 402, thus doubly locking and reinforcing the beam position and improving welding stability.

[0044] See Figure 3 The support mechanism 6 includes a third sliding block 601, which is connected to a mounting plate 602 by bolts. The mounting plate 602 is detachable by bolts and can be quickly removed after welding to avoid interfering with the installation of the base plate panel.

[0045] See Figure 3 A second support plate 603 is slidably connected to the mounting plate 602. An adjusting bolt 604 is rotatably connected to the bottom of the second support plate 603. The adjusting bolt 604 and the mounting plate 602 are threadedly connected. The sliding connection between the second support plate 603 and the mounting plate 602 allows for fine adjustment of the support point position to adapt to the size and height positioning of the longitudinal beam.

[0046] See Figure 1 and Figure 2 Support rods 7 are fixedly connected to both sides of the frame body 1. The support rods 7 are used to flip the frame body 1. The flipping process does not require disassembling the workpiece, reducing the number of repositioning times and improving welding efficiency.

[0047] The implementation principle of this utility model is as follows: First, the frame body 1 is erected on the welding station by the support rod 7, the first sliding block 302 is moved along the first sliding groove 2, the first support plate 301 is pushed to the bottom of the frame corner, the corner position is locked by the first pressure rod 303, and the first observation groove 304 can align the positioning line drawn on the frame body 1 to ensure that it can be aligned.

[0048] The second sliding block 401 slides along the first sliding groove 2 to the position of the corresponding longitudinal beam inside the frame. The height of the sliding plate 402 is adjusted to match the reinforcing beam. The appropriate limiting groove 403 is selected to clamp beams of different widths. The pressure block 404 presses down on the reinforcing beam. The height is locked by the third pressure rod 406 to ensure alignment. The position is locked by the second pressure rod 405 to adapt to different reinforcing beam specifications. After pressing, it ensures no displacement during welding.

[0049] The third sliding block 601 moves along the second sliding groove 5 to below the crossbeam, and the rotating adjusting bolt 604 drives the second support plate 603 to rise and fall to match the height of the crossbeam, which facilitates subsequent welding.

[0050] After welding is completed, the mounting plate 602 is removed by unscrewing the bolts, leaving space for the bottom panel. The entire fixture is then rotated using the support rod 7, and the panel is inserted to complete the final panel welding.

[0051] Example 2:

[0052] See Figure 6 and Figure 7 The main frame 1 includes a U-shaped frame 101 and a sliding frame 102. The sliding frame 102 is fixed to the U-shaped frame 101 by bolts. The bolt connection ensures the rigidity of the split frame and avoids structural deformation under stress, taking into account both versatility and stability.

[0053] The implementation principle of this utility model is as follows: First, as a replacement for the integrated frame body 1 in Embodiment 1, the frame body 1 is divided into two parts: a U-shaped frame 101 and a sliding frame 102. The position is quickly adjusted by bolting the U-shaped frame 101 and the sliding frame 102, thereby adapting to the welding of vehicle bodies of different lengths.

[0054] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A welding auxiliary fixture for the assembly of the carriage floor welded parts, characterized in that: The frame includes a main body (1), and the main body (1) has a first sliding groove (2) on both sides. The first sliding groove (2) is slidably connected to a corner support mechanism (3) and a beam mechanism (4). The bottom of the main body (1) has a second sliding groove (5) on both sides. The second sliding groove (5) is slidably connected to a support mechanism (6).

2. The auxiliary tooling for welding the carriage floor assembly according to claim 1, characterized in that: The corner support mechanism (3) includes a first support plate (301), and a first sliding block (302) is fixedly connected to the bottom of the first support plate (301).

3. The auxiliary tooling for welding the carriage floor assembly according to claim 2, characterized in that: The first sliding block (302) is threadedly connected to a first pressure rod (303) on one side, and a first observation groove (304) is provided on the top of one side of the first sliding block (302).

4. The auxiliary tooling for welding the carriage floor assembly according to claim 1, characterized in that: The beam mechanism (4) includes a second sliding block (401), and a sliding plate (402) is slidably connected to the top of the second sliding block (401).

5. The auxiliary tooling for welding the carriage floor assembly according to claim 4, characterized in that: The sliding plate (402) has several limiting grooves (403) on both sides, and a pressure block (404) is provided on the front side of the sliding plate (402).

6. The auxiliary tooling for welding the carriage floor assembly according to claim 4, characterized in that: A second pressure rod (405) is threadedly connected to one side of the second sliding block (401), and a third pressure rod (406) is threadedly connected to the top of one side of the second sliding block (401). The third pressure rod (406) is used to fix the sliding plate (402).

7. The auxiliary tooling for welding the carriage floor assembly according to claim 1, characterized in that: The support mechanism (6) includes a third sliding block (601), which is bolted to a mounting plate (602).

8. The auxiliary tooling for welding the carriage floor assembly according to claim 7, characterized in that: A second support plate (603) is slidably connected to the mounting plate (602), and an adjusting bolt (604) is rotatably connected to the bottom of the second support plate (603). The adjusting bolt (604) and the mounting plate (602) are threadedly connected.

9. The auxiliary tooling for welding the carriage floor assembly according to claim 1, characterized in that: The frame body (1) is fixedly connected to two sides by support rods (7), which are used to flip the frame body (1).

10. The auxiliary tooling for welding the carriage floor assembly according to claim 1, characterized in that: The main frame (1) includes a U-shaped frame (101) and a sliding frame (102), which is fixed to the U-shaped frame (101) by bolts.

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