Hard type splicing frame welding simple jig

Abstract

The utility model discloses a kind of hard splice frame welding simple jigs, including base, support plate, installation bottom plate, installation top plate and side reinforcement mechanism, inclined plane is provided on base, support plate is fixed in the top end of base along inclined plane, installation top plate is fixed in the top end of support plate, and base, support plate, installation bottom plate and installation top plate integrally adopt 3D printing technology to make integrated structure.In the utility model, through 3D printing technology to make integrated structure, the error produced by the assembly of multiple components can be avoided, while the overall structural strength is guaranteed, the positioning accuracy required for frame welding can be stably maintained, the requirement of welding reference uniformity for hard splice frame is met, and the installation side plate is slidably connected with the guide groove of the edge of support plate through sliding block, and two are symmetrically arranged, the installation side plate position can be adjusted according to the welding requirement of scattered small parts, the occupation of welding operation space is reduced, and welding tool operation is facilitated.

Description

Technical Field

[0001] This utility model relates to a welding fixture, specifically a simple welding fixture for rigid splicing vehicle frames, belonging to the technical field of welding fixtures. Background Technology

[0002] In the modern transportation equipment manufacturing system, the rigid splicing frame is the core component of the vehicle load-bearing system. Its welding quality directly determines the safety performance and service life of the whole vehicle. During the welding process of the rigid splicing frame, in order to ensure the dimensional accuracy and structural stability of the frame after welding, it is necessary not only to overcome the problem of heat deformation accumulation when welding multiple specifications of tubing, but also to ensure that the form and position tolerance of complex spatial structures is controlled within the micron standard. Therefore, welding fixtures are required to assist in the process.

[0003] However, most existing welding fixtures have various problems. For example, in a welding fixture disclosed in publication number CN106658994A, although it improves the final quality of the product by improving welding accuracy and avoiding the problem of easy displacement between the parent and child parts during the welding process, and also improves welding efficiency, in this technical solution and most current welding fixtures, existing welding fixtures mostly adopt an integrated or large-size modular design, and ensure the uniformity of welding reference for key parts of the frame through a fixed modular positioning structure. In related technologies, large-sized modules occupy a significant amount of welding space, which restricts the movement of welding tools when handling small, scattered parts of the chassis, making it difficult to perform precise welding on these parts directly. To solve this space problem, existing solutions require frequent replacement of specialized modules adapted for welding these small, scattered parts. However, these modules are typically large and heavy due to the need to maintain positioning accuracy, and the replacement process requires the use of hoisting equipment or multiple people working together, making the operation cumbersome and time-consuming. In addition, the customization and manufacturing costs of specialized modules are high, and stocking multiple modules increases the company's equipment investment costs. At the same time, the storage and maintenance of modules also require additional space resources, further reducing the overall efficiency and economy of chassis welding production. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings in existing technologies by proposing a simple welding fixture for rigid splicing vehicle frames.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A simple welding fixture for rigid splicing vehicle frames includes a base, a support plate, a mounting base plate, a mounting top plate, and a side reinforcement mechanism. The base has an inclined surface, the support plate is fixed to the top of the base along the inclined surface, and the mounting top plate is fixed to the top of the support plate. The base, support plate, mounting base plate, and mounting top plate are all made into an integrated structure using 3D printing technology. The side reinforcement mechanism is connected to the support plate and includes a guide groove, a slider and a mounting side plate. The guide groove is recessed at the edge of the support plate. The slider is slidably engaged in the guide groove. The mounting side plate is fixed on the slider and is slidably connected to the edge of the support plate through the slider. There are two mounting side plates symmetrically arranged.

[0006] As a further improvement of this utility model, the side reinforcement mechanism also includes positioning holes and positioning rods. The positioning holes are recessed on the side wall of the support plate and are arranged in multiple equidistant positions. The positioning rods are slidably connected to the bottom of the mounting side plate, and one end of the positioning rods is inserted into the positioning holes.

[0007] As a further embodiment of this utility model: a limiting plate is coaxially fixed to the other end of the positioning rod. The diameter of the limiting plate is larger than that of the positioning rod, and a return spring is sleeved on the outside of the positioning rod. One end of the return spring abuts against the mounting side plate, and the other end abuts against the limiting plate.

[0008] As a further improvement of this utility model: a through hole is provided through the mounting side plate, a screw hole is provided on the slider, and a locking screw is inserted into the through hole, with one end of the locking screw engaging with the thread of the screw hole.

[0009] As a further improvement of this utility model, both the guide groove and the slider have trapezoidal cross-sections.

[0010] As a further improvement of this utility model, through holes are provided in the mounting base plate, mounting top plate, and mounting side plate.

[0011] The beneficial effects of this utility model are: In this invention, an integrated structure is created using 3D printing technology, which avoids errors caused by assembling multiple parts while ensuring the overall structural strength. It can stably maintain the positioning accuracy required for frame welding, meeting the requirement of uniform welding benchmarks for rigid spliced ​​frames. The mounting side plates are slidably connected to the guide grooves on the edge of the support plate via sliders, and two are symmetrically arranged. The position of the mounting side plates can be adjusted according to the welding needs of scattered small parts, reducing the occupation of welding operation space and solving the problem of insufficient space in traditional large module fixtures. This facilitates welding tool operation. In addition, the integrated 3D printed structure reduces the cost of customizing and assembling multiple modules, eliminates the need for frequent replacement of traditional heavy-volume modules, saves the cumbersome steps of replacing modules with hoisting equipment or multiple people working together, and saves replacement time. At the same time, there is no need to store multiple sets of special modules, reducing site occupation and maintenance costs, and improving the economy and overall efficiency of frame welding production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the side reinforcement mechanism of this utility model; Figure 3 This is a schematic diagram of the mounting side plate structure of this utility model; Figure 4 This is a schematic diagram of the positioning rod and its overall connection structure of this utility model.

[0013] In the diagram: 1. Base; 2. Support plate; 3. Mounting base plate; 4. Mounting top plate; 5. Side reinforcement mechanism; 51. Guide groove; 52. Slider; 53. Mounting side plate; 54. Positioning hole; 55. Positioning rod; 56. Return spring; 57. Limiting plate; 6. Locking screw. Detailed Implementation

[0014] 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. Example 1

[0015] like Figures 1 to 4 As shown, a simple welding fixture for rigid splicing vehicle frames includes a base 1, a support plate 2, a mounting base plate 3, a mounting top plate 4, and a side reinforcement mechanism 5. The base 1 is provided with an inclined surface, the support plate 2 is inclined and fixed to the top of the base 1 along the inclined surface, and the mounting top plate 4 is fixed to the top of the support plate 2. The base 1, support plate 2, mounting base plate 3, and mounting top plate 4 are all made into an integrated structure using 3D printing technology. The side reinforcement mechanism 5 is connected to the support plate 2, and the side reinforcement mechanism 5 includes a guide groove 51, a slider 52 and a mounting side plate 53. The guide groove 51 is recessed at the edge of the support plate 2. The slider 52 is slidably engaged in the guide groove 51. The mounting side plate 53 is fixed on the slider 52, and the mounting side plate 53 is slidably connected to the edge of the support plate 2 through the slider 52, and two are symmetrically arranged. The side reinforcement mechanism 5 also includes a positioning hole 54 and a positioning rod 55. The positioning hole 54 is recessed on the side wall of the support plate 2 and multiple holes are equally spaced. The positioning rod 55 is slidably connected to the bottom of the mounting side plate 53, and one end of the positioning rod 55 is inserted into the positioning hole 54. The other end of the positioning rod 55 is coaxially fixed with a limiting plate 57. The diameter of the limiting plate 57 is larger than that of the positioning rod 55. A return spring 56 is sleeved on the outside of the positioning rod 55. One end of the return spring 56 abuts against the mounting side plate 53, and the other end abuts against the limiting plate 57.

[0016] In this invention, an integrated structure is created using 3D printing technology, which avoids errors caused by assembling multiple parts while ensuring the overall structural strength. It can stably maintain the positioning accuracy required for frame welding, meeting the requirement of uniform welding benchmarks for rigid spliced ​​frames. The mounting side plate 53 is slidably connected to the guide groove 51 on the edge of the support plate 2 via a slider 52, and two are symmetrically arranged. The position of the mounting side plate 53 can be adjusted according to the welding needs of scattered small parts, reducing the occupation of welding operation space and solving the problem of insufficient space in traditional large module fixtures. It also facilitates welding tool operation. In addition, the integrated 3D printed structure reduces the cost of customizing and assembling multiple modules, eliminates the need for frequent replacement of traditional heavy-volume modules, saves time by eliminating the cumbersome steps of replacing modules with hoisting equipment or multiple people working together, and eliminates the need to store multiple sets of special modules, reducing site occupation and maintenance costs, and improving the economy and overall efficiency of frame welding production. Example 2

[0017] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes: The mounting side plate 53 has a through hole, and the slider 52 has a screw hole. A locking screw 6 is inserted into the through hole, and one end of the locking screw 6 is threaded into the screw hole. The locking screw 6 allows the mounting side plate 53 to be quickly disassembled and replaced after damage.

[0018] Both the guide groove 51 and the slider 52 have trapezoidal cross sections. The trapezoidal structure can enhance the tightness of the two and prevent the slider 52 from falling out of the guide groove 51 during sliding. At the same time, it can improve the guiding accuracy during sliding and ensure that the adjustment process of the side plate 53 is smooth and accurate.

[0019] Through holes are provided on the mounting base plate 3, mounting top plate 4, and mounting side plate 53. These through holes can be used to install frame components of different specifications. They can adapt to the welding needs of rigid splicing frames of various sizes and scattered small parts. There is no need to customize fixtures for different specifications of workpieces, which further reduces equipment investment costs and improves the versatility of fixtures.

[0020] Working principle: When using this welding fixture, first pull the positioning rod 55 outward so that the other end of the positioning rod 55 is disengaged from the positioning hole 54; then push the mounting side plate 53 so that it slides along the guide groove 51 on the edge of the support plate 2 through the slider 52 until it is adjusted to the target position for welding the small parts of the frame. Release the limit plate 57, and the return spring 56 rebounds to push the positioning rod 55 back to its original position so that one end of it is inserted into the positioning hole 54 corresponding to the current position, locking the position of the mounting side plate 53. Then, use the through hole on the mounting side plate 53 to install the fastener and fix the small parts of the frame. After ensuring the overall structure is accurately positioned, the welding operation can be performed.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simple welding fixture for rigid splicing vehicle frames, comprising a base (1), a support plate (2), a mounting base plate (3), a mounting top plate (4), and a side reinforcement mechanism (5), characterized in that, The base (1) is provided with an inclined surface, the support plate (2) is fixed at the top of the base (1) along the inclined surface, the mounting top plate (4) is fixed at the top of the support plate (2), and the base (1), support plate (2), mounting bottom plate (3) and mounting top plate (4) are made into an integrated structure by 3D printing technology. The side reinforcement mechanism (5) is connected to the support plate (2), and the side reinforcement mechanism (5) includes a guide groove (51), a slider (52) and a mounting side plate (53). The guide groove (51) is recessed at the edge of the support plate (2). The slider (52) is slidably engaged in the guide groove (51). The mounting side plate (53) is fixed on the slider (52), and the mounting side plate (53) is slidably connected to the edge of the support plate (2) through the slider (52), and there are two of them symmetrically arranged.

2. The simple welding fixture for rigid splicing vehicle frames according to claim 1, characterized in that: The side reinforcement mechanism (5) also includes a positioning hole (54) and a positioning rod (55). The positioning hole (54) is recessed on the side wall of the support plate (2) and multiple positioning holes are provided at equal intervals. The positioning rod (55) is slidably connected to the bottom of the mounting side plate (53), and one end of the positioning rod (55) is inserted into the positioning hole (54).

3. The simple welding fixture for rigid splicing vehicle frames according to claim 2, characterized in that: The other end of the positioning rod (55) is coaxially fixed with a limiting plate (57). The diameter of the limiting plate (57) is larger than that of the positioning rod (55), and a return spring (56) is sleeved on the outside of the positioning rod (55). One end of the return spring (56) abuts against the mounting side plate (53), and the other end abuts against the limiting plate (57).

4. The simple welding fixture for rigid splicing vehicle frames according to claim 1, characterized in that: The mounting side plate (53) has a through hole, the slider (52) has a screw hole, and a locking screw (6) is inserted into the through hole, with one end of the locking screw (6) threaded into the screw hole.

5. A simple welding fixture for rigid splicing vehicle frames according to claim 1, characterized in that: The cross-sections of the guide groove (51) and the slider (52) are both trapezoidal.

6. A simple welding fixture for rigid splicing vehicle frames according to claim 1, characterized in that: Through holes are provided on the mounting base plate (3), mounting top plate (4), and mounting side plate (53).

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