Rapid prototyping welding fixture

Abstract

The utility model discloses a kind of rapid prototyping welding jigs, including first fixture plate, second fixture plate, clamping groove and positioning mechanism, one end of first fixture plate and second fixture plate is connected with each other and combined to constitute an overall structure, and it is made using 3D printing process, clamping groove is respectively arranged at the other end of first fixture plate and second fixture plate, and it is in the shape structure. First fixture plate and second fixture plate in the utility model are made using 3D printing process, without traditional complex mould, shorten processing cycle, reduce customization production cost;And the overall structure is combined by the two, simplify design and assembly process, reduce monomer manufacturing difficulty, further control jig overall cost, and in positioning mechanism, frame limiting rod is fixed in clamping groove center, provide stable datum for positioning;When adjusting rod drives initiative seat to slide, linkage rod can drive abutment plate to move linearly stably along sliding slot, realize accurate clamping to welding component.

Description

Technical Field

[0001] This utility model relates to a welding fixture, specifically a rapid prototyping welding fixture, and belongs to the field of welding fixture technology. Background Technology

[0002] In the motorcycle manufacturing process, the welding process is the core link to ensure the structural strength of the motorcycle body and key components. As a key tooling to ensure welding accuracy and stability, the performance and cost of welding fixtures directly affect production efficiency and product economy.

[0003] However, most existing welding fixtures have various problems. For example, in the rapid positioning welding fixture disclosed in announcement number CN220560748U, although the workpiece can be quickly positioned by moving the clamping blocks, which facilitates workpiece positioning and improves welding effect, in this technical solution and most current welding fixtures, high-temperature sparks will directly act on the surface and internal structure of the fixture during the welding operation, which can easily damage the material properties and structural integrity of the fixture. This makes the fixture unable to meet the accuracy requirements after a few uses. Furthermore, the existing fixtures used for motorcycle welding have high overall design and manufacturing costs. Both material selection and processing technology require a lot of resources, which increases the production cost of enterprises and is not conducive to large-scale promotion and application. This seriously restricts the efficient and low-cost development of motorcycle 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 of existing technologies by proposing a rapid prototyping welding fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rapid prototyping welding fixture includes a first fixture plate, a second fixture plate, a slot, and a positioning mechanism. One end of the first fixture plate and the second fixture plate are connected to each other and combined to form an integral structure, which is manufactured using 3D printing technology. The slot is respectively set at the other end of the first fixture plate and the second fixture plate, and has a C-shaped structure. The positioning mechanism is set in the slot and includes a frame limiting rod, a driven seat, an active seat, a linkage rod, an adjusting rod, an abutment plate, and a sliding groove. The frame limiting rod is fixed at the center of the slot, the driven seat is fixed in the cavity inside the frame limiting rod, the driving seat is slidably connected inside the frame limiting rod and located at the bottom of the driven seat, and multiple linkage rods are provided. One linkage rod is rotatably connected between the driven seat and the abutment plate, and another linkage rod is rotatably connected between the driving seat and the abutment plate. The adjusting rod is slidably connected at the axis of the frame limiting rod and is slidably engaged with the driven seat. The driving seat is fixedly connected to the adjusting rod. The slide groove is provided on the peripheral wall of the frame limiting rod, and the abutment plate is slidably engaged in the slide groove.

[0006] As a further embodiment of this utility model: the positioning mechanism also includes a threaded rod and a nut. The threaded rod is coaxially fixed to the top of the adjusting rod and slides with the frame limiting rod. The threaded rod protrudes from the top of the frame limiting rod, and the nut is coaxially rotatably connected to the top of the frame limiting rod. The threaded rod and the nut are threadedly engaged.

[0007] As a further improvement of this utility model: a return spring is sleeved on the adjusting rod, and the two ends of the return spring abut against the driven seat and the driving seat respectively.

[0008] As a further embodiment of this utility model: the first fixture plate and the second fixture plate are provided with a docking groove at one end of their mutual connection, and a positioning rod is provided in one of the docking grooves, and a positioning hole is provided through the other docking groove, with the positioning rod inserted into the positioning hole.

[0009] As a further improvement of this utility model: a screw hole is provided at one end of the positioning rod near the positioning hole, and a locking screw is screwed into the screw hole, with the other end of the locking screw located outside the positioning hole.

[0010] As a further improvement of this utility model, rubber gaskets are provided on both sides of the inner wall of the slot.

[0011] The beneficial effects of this utility model are: In this invention, the first and second fixture plates are manufactured using 3D printing technology, eliminating the need for traditional complex molds, shortening the processing cycle, and reducing customized production costs. Furthermore, the combination of the two forms an integrated structure, simplifying the design and assembly process, reducing the difficulty of individual unit manufacturing, and further controlling the overall cost of the fixture. In the positioning mechanism, the frame limiting rod is fixed at the center of the slot, providing a stable reference for positioning. When the adjusting rod drives the active seat to slide, the linkage rod can drive the abutment plate to move linearly and stably along the slide groove, achieving precise clamping of the welded parts. Simultaneously, the threaded rod and nut engage to lock the position of the adjusting rod, preventing the abutment plate from loosening during welding, ensuring positioning stability, and improving welding accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the separation structure of the first fixture plate and the second fixture plate of this utility model; Figure 3 This is a schematic diagram of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the abutment plate and its overall connection structure of this utility model.

[0013] In the diagram: 1. First fixture plate, 2. Second fixture plate, 3. Slot, 4. Positioning mechanism, 41. Frame limit rod, 42. Driven seat, 43. Driving seat, 44. Linkage rod, 45. Adjusting rod, 46. Abutment plate, 47. Slide groove, 48. Threaded rod, 49. Nut, 410. Return spring, 5. Connecting groove, 6. Positioning rod, 7. Positioning hole, 8. Locking screw, and 9. Rubber gasket. 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 rapid prototyping welding fixture includes a first fixture plate 1, a second fixture plate 2, a slot 3, and a positioning mechanism 4. One end of the first fixture plate 1 and the second fixture plate 2 are connected to each other and combined to form an integral structure, which is made by 3D printing. The slot 3 is respectively set at the other end of the first fixture plate 1 and the second fixture plate 2, and has a C-shaped structure. The positioning mechanism 4 is set in the slot 3 and includes a frame limiting rod 41, a driven seat 42, an active seat 43, a linkage rod 44, an adjusting rod 45, an abutment plate 46, and a sliding groove 47. The frame limiting rod 41 is fixed at the center of the slot 3. The driven seat 42 is fixed in the cavity inside the frame limiting rod 41. The driving seat 43 is slidably connected inside the frame limiting rod 41 and located at the bottom of the driven seat 42. Multiple linkage rods 44 are provided. One linkage rod 44 is rotatably connected between the driven seat 42 and the abutment plate 46. Another linkage rod 44 is rotatably connected between the driving seat 43 and the abutment plate 46. The adjusting rod 45 is slidably connected at the axis of the frame limiting rod 41 and is slidably engaged with the driven seat 42. The driving seat 43 is fixedly connected to the adjusting rod 45. The slide groove 47 is provided on the peripheral wall of the frame limiting rod 41. The abutment plate 46 is slidably engaged in the slide groove 47. The positioning mechanism 4 also includes a threaded rod 48 and a nut 49. The threaded rod 48 is coaxially fixed to the top of the adjusting rod 45 and slides with the frame limiting rod 41. The threaded rod 48 protrudes from the top of the frame limiting rod 41. The nut 49 is coaxially rotatably connected to the top of the frame limiting rod 41. The threaded rod 48 and the nut 49 are threadedly engaged.

[0016] In this utility model, the first fixture plate 1 and the second fixture plate 2 are manufactured using 3D printing technology, eliminating the need for traditional complex molds, shortening the processing cycle, and reducing customized production costs. Furthermore, the combination of the two forms an integral structure, simplifying the design and assembly process, reducing the difficulty of individual unit manufacturing, and further controlling the overall cost of the fixture. In the positioning mechanism 4, the frame limiting rod 41 is fixed in the center of the slot 3, providing a stable reference for positioning. When the adjusting rod 45 drives the active seat 43 to slide, the linkage rod 44 can drive the abutment plate 46 to move linearly and stably along the slide groove 47, achieving precise clamping of the welded parts. At the same time, the threaded rod 48 and the nut 49 are threaded together to lock the position of the adjusting rod 45, preventing the abutment plate 46 from loosening during welding, ensuring positioning stability, and improving welding accuracy. 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: A return spring 410 is sleeved on the adjusting rod 45. The two ends of the return spring 410 abut against the driven seat 42 and the driving seat 43 respectively. The spring force of the return spring 410 pushes the driving seat 43 to quickly reset, and then drives the abutment plate 46 to retract through the linkage rod 44.

[0018] Both the first fixture plate 1 and the second fixture plate 2 have a mating groove 5 at one end where they meet. A positioning rod 6 is installed in one of the mating grooves 5, and a positioning hole 7 is installed through the other mating groove 5. The positioning rod 6 is inserted into the positioning hole 7. By using the mating groove 5 at the mating end of the first fixture plate 1 and the second fixture plate 2 to cooperate with the positioning rod 6 and the positioning hole 7, the two plates can be accurately mated, avoiding misalignment during assembly.

[0019] The positioning rod 6 has a screw hole at one end near the positioning hole 7, and a locking screw 8 is screwed into the screw hole. The other end of the locking screw 8 is located outside the positioning hole 7, which further fixes the position of the two plates, prevents the fixture plate from loosening during the welding process, and ensures the stability of the overall structure.

[0020] Rubber pads 9 are provided on both sides of the inner wall of the slot 3 to buffer the impact force of the welding parts contacting the inner wall of the slot 3, and to prevent the parts or the slot 3 from being damaged by collision.

[0021] Working principle: When using this welding fixture, first align the first fixture plate 1 with the second fixture plate 2, so that the positioning rod 6 in one of the docking grooves 5 is inserted into the positioning hole 7 of the other docking groove 5. Then, screw the locking screw 8 into the screw hole of the positioning rod 6 to complete the fixed assembly of the two fixture plates. Then, the motorcycle part to be welded is inserted into the C-shaped slot 3 at the other end of the first jig plate 1 and the second jig plate 2 to initially stabilize the position of the part. At the same time as inserting, the frame limiting rod 41 is aligned with the reserved hole on the motorcycle part. Then, the nut 49 is rotated to drive the threaded rod 48 to move in a threaded linkage. The threaded rod 48 then drives the adjusting rod 45 to slide. The adjusting rod 45 drives the active seat 43 to move. The active seat 43 pushes the abutment plate 46 to slide outward along the slide groove 47 through the linkage rod 44 until the abutment plate 46 clamps the part to be welded. Then, the rotation of the nut 49 is stopped, and the part positioning is completed.

[0022] 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.

[0023] 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 rapid prototyping welding fixture, comprising a first fixture plate (1), a second fixture plate (2), a slot (3), and a positioning mechanism (4), characterized in that, The first fixture plate (1) and the second fixture plate (2) are connected to each other and combined to form an integral structure, and are made by 3D printing process. The slots (3) are respectively set at the other ends of the first fixture plate (1) and the second fixture plate (2), and are in the shape of a c. The positioning mechanism (4) is set in the slot (3), including the frame limiting rod (41), the driven seat (42), the driving seat (43), the linkage rod (44), the adjusting rod (45), the abutment plate (46), and the slide (47). The frame limiting rod (41) is fixed at the center of the slot (3). The driven seat (42) is fixed in the cavity inside the frame limiting rod (41). The active seat (43) is slidably connected inside the frame limiting rod (41) and located at the bottom of the driven seat (42). Multiple linkage rods (44) are provided. One linkage rod (44) is rotatably connected between the driven seat (42) and the abutment plate (46). Another linkage rod (44) is rotatably connected between the active seat (43) and the abutment plate (46). The adjusting rod (45) is slidably connected at the axis of the frame limiting rod (41) and slidably cooperates with the driven seat (42). The active seat (43) is fixedly connected to the adjusting rod (45). The sliding groove (47) is provided on the peripheral wall of the frame limiting rod (41). The abutment plate (46) is slidably engaged in the sliding groove (47).

2. The rapid prototyping welding fixture according to claim 1, characterized in that: The positioning mechanism (4) further includes a threaded rod (48) and a nut (49). The threaded rod (48) is coaxially fixed to the top of the adjusting rod (45) and slides with the frame limiting rod (41). The threaded rod (48) protrudes from the top of the frame limiting rod (41). The nut (49) is coaxially rotatably connected to the top of the frame limiting rod (41). The threaded rod (48) and the nut (49) are threadedly engaged.

3. The rapid prototyping welding fixture according to claim 1, characterized in that: A return spring (410) is sleeved on the adjusting rod (45), and the two ends of the return spring (410) abut against the driven seat (42) and the driving seat (43) respectively.

4. The rapid prototyping welding fixture according to claim 1, characterized in that: The first fixture plate (1) and the second fixture plate (2) are provided with a docking groove (5) at one end of their mutual connection, and a positioning rod (6) is provided in one of the docking grooves (5), and a positioning hole (7) is provided through the other docking groove (5). The positioning rod (6) is inserted into the positioning hole (7).

5. A rapid prototyping welding fixture according to claim 4, characterized in that: The positioning rod (6) has a screw hole at one end near the positioning hole (7), and a locking screw (8) is screwed into the screw hole. The other end of the locking screw (8) is located outside the positioning hole (7).

6. A rapid prototyping welding fixture according to claim 1, characterized in that: Rubber pads (9) are provided on both sides of the inner wall of the slot (3).

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