An arc-shaped positioning tool

Abstract

The utility model discloses a kind of arc positioning tool, specifically related to positioning tool technical field, including arc positioning plate, arc positioning plate bottom rear side is equipped with mounting plate, mounting plate top is equipped with support mechanism, support mechanism is equipped in arc positioning plate rear side, support mechanism includes support plate, two groups of support components are equipped in support plate inside, each group of support component includes multiple vertical arrangement support piece;Support piece includes the installation slot being opened in support plate inside, installation slot extends to support plate front end, sliding block is slidably arranged in installation slot inside, sliding block front end is equipped with the support round block in contact with arc positioning plate rear end, and sliding block rear end is connected with the inner wall of installation slot by spring. The utility model makes the plate positioning precision more accurate, improves plate quality and productivity, ensures safety production, and also can replace arc positioning plate of different radian according to different plate requirement, flexible adaptation diversification processing scene.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to an arc-shaped positioning tooling. Background Technology

[0002] Automotive body panels refer to surface or internal parts made of thin metal sheets that cover the engine, chassis, and form the cab and body. They can be categorized into three types based on function and location: external body panels, internal body panels, and frame body panels. The production process for automotive body panel panels begins with developing a feasible sheet metal forming process, followed by the gradual completion of specific production operations using molds for each process.

[0003] The production of automotive body panels requires the use of positioning fixtures. These fixtures provide stable support and limit movement, preventing the panels from shifting or wobbling during processes such as drawing and bending. This also prevents uneven stress that could lead to wrinkling, cracking, and other problems, ensuring that the molded dimensions conform to design standards. However, in actual production, when the panels being molded have significant shape differences, such as complex curved body panels or multi-curvature body panels, traditional positioning fixtures often exhibit noticeable positioning errors. This can easily lead to unstable positioning references, uneven stress on the panels, and ultimately, wrinkling, cracking, and other problems that result in the panels being scrapped. Utility Model Content

[0004] The purpose of this utility model is to provide an arc-shaped positioning fixture that makes the positioning accuracy of the plate more accurate, improves the quality and productivity of the plate, ensures safe production, and allows for the replacement of arc-shaped positioning plates with different curvatures according to the needs of different plates, flexibly adapting to diverse processing scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an arc-shaped positioning fixture, including an arc-shaped positioning plate, an mounting plate on the bottom rear side of the arc-shaped positioning plate, and a support mechanism on the top of the mounting plate. The support mechanism is located on the rear side of the arc-shaped positioning plate and is used to support the arc-shaped positioning plate.

[0006] The support mechanism includes a support plate, and the support plate has two sets of support components inside. Each set of support components includes multiple vertically arranged support members. The support members include a mounting groove opened inside the support plate. The mounting groove extends to the front end of the support plate. A slider is slidably provided inside the mounting groove. The front end of the slider is provided with a support block that contacts the rear end of the arc-shaped positioning plate. The rear end of the slider is connected to the inner wall of the mounting groove by a spring.

[0007] Preferably, the front end of the slider is fixed with a housing, and the supporting circular block is disposed inside the housing and fixedly connected to the housing.

[0008] Preferably, the support plate has a fixing member inside, which is located between the two sets of support components; the fixing member includes a groove formed inside the support plate, and the groove communicates with each mounting slot, and two pressure plates are slidably arranged inside the groove.

[0009] Preferably, each of the two pressure plates has a movable block fixed at its top. The two movable blocks are located inside the support plate and extend beyond the top of the support plate. A threaded rod is threaded between the two movable blocks, and the threads between the two movable blocks and the threaded rod have opposite directions, which is used to drive the two movable blocks to move in opposite directions.

[0010] Preferably, the top of the support plate is fixed with two fixing blocks, which are respectively located on the outside of the two movable blocks and at both ends of the threaded rod, and the fixing blocks are rotatably connected to the threaded rod.

[0011] Preferably, the top of the support plate has a groove communicating with the recess, both movable blocks pass through the groove, and the movable blocks are slidably connected to the groove.

[0012] Preferably, connecting blocks are fixed on both sides of the front end of the mounting plate. The two connecting blocks are respectively located on both sides of the arc-shaped positioning plate. Each connecting block is provided with a fixing pin. The fixing pin is threadedly connected to the connecting block, and one end of the fixing pin is inserted into the arc-shaped positioning plate for fixing the arc-shaped positioning plate.

[0013] Preferably, the mounting plate has two through mounting holes at its rear end, with the two mounting holes located on both sides of the support plate.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: The curved positioning plate can solve the problem of sagging around the plate, making the positioning accuracy more accurate, improving the quality and productivity of the plate, and ensuring safe production. At the same time, the curved positioning plate can be easily disassembled and assembled, and it is convenient to replace the curved positioning plate with one of different curvatures according to the needs of different plates, flexibly adapting to diverse processing scenarios. After the arc-shaped positioning plate is installed on the mounting plate, the support block driven by the spring in the support mechanism can automatically fit the rear end of the arc-shaped positioning plate with different curvatures, ensuring a tight fit, thereby achieving stable support for the arc-shaped positioning plate with different curvatures and ensuring the stability of the arc-shaped positioning plate during processing. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a view of the overall rear structure of the present invention; Figure 3 This is a side sectional view of the present invention; Figure 4This is a cross-sectional view of the arc-shaped positioning plate and mounting plate of this utility model; Figure 5 This is a structural diagram of the support mechanism of this utility model; Figure 6 This is a cross-sectional view of the support mechanism of this utility model; Figure 7 This is a top sectional view of the support mechanism of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Arc-shaped positioning plate; 2. Mounting plate; 21. Connecting block; 22. Fixing pin; 23. Mounting hole; 3. Supporting mechanism; 31. Supporting plate; 32. Support component; 321. Mounting slot; 322. Slider; 323. Housing; 324. Support block; 325. Spring; 33. Fixing component; 331. Groove; 332. Pressure plate; 333. Movable block; 334. Threaded rod; 335. Fixing block; 336. Slide groove. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figures 1-7 An arc-shaped positioning fixture is shown, including an arc-shaped positioning plate 1. The bottom rear side of the arc-shaped positioning plate 1 is provided with a mounting plate 2. The rear end of the mounting plate 2 has two through mounting holes 23, which facilitates the mounting plate 2 to be locked onto the pressure ring with screws.

[0019] When the sheet metal enters the mold, the mold has a large difference in shape, the mold core is too high and the pressure ring is too low. The flat sheet metal sags around the edges due to gravity. Ordinary straight positioning tools cannot achieve or are not easy to achieve positioning. The curved positioning plate 1 can solve the problem of positioning the sheet metal sags around the edges, making the positioning accuracy of the sheet metal more accurate, improving the quality and productivity of the sheet metal, and ensuring safe production.

[0020] like Figures 1-4 As shown, there are connecting blocks 21 fixed on both sides of the front end of the mounting plate 2. The two connecting blocks 21 are respectively located on both sides of the arc-shaped positioning plate 1. Each connecting block 21 is provided with a fixing pin 22. The fixing pin 22 is threadedly connected to the connecting block 21, and one end of the fixing pin 22 is inserted into the arc-shaped positioning plate 1. By placing the arc-shaped positioning plate 1 between the two connecting blocks 21 at the front end of the mounting plate 2, and then screwing the fixing pin 22 onto the connecting block 21, the arc-shaped positioning plate 1 is fixed by inserting the fixing pin 22 into the arc-shaped positioning plate 1. This facilitates the easy assembly and disassembly of the arc-shaped positioning plate 1 and the mounting plate 2, thereby making it easy to replace the arc-shaped positioning plate 1 with different curvatures according to the needs of different plates, and flexibly adapt to diverse processing scenarios.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the top of the mounting plate 2 is provided with a support mechanism 3, which is located on the rear side of the arc-shaped positioning plate 1 and is used to support the arc-shaped positioning plate 1.

[0022] Specifically, the support mechanism 3 includes a support plate 31, with two mounting holes 23 respectively located on both sides of the support plate 31. The support plate 31 has two sets of support components inside, each set of support components including multiple vertically arranged support members 32. Each support member 32 includes a mounting groove 321 opened inside the support plate 31. The mounting groove 321 extends to the front end of the support plate 31. A slider 322 is slidably arranged inside the mounting groove 321. A housing 323 is fixed to the front end of the slider 322. A support block 324 that contacts the rear end of the arc-shaped positioning plate 1 is fixed inside the housing 323. The rear end of the slider 322 is connected to the inner wall of the mounting groove 321 by a spring 325. Next, a fastener 33 is provided inside the support plate 31. The fastener 33 is located between the two sets of support components. The fastener 33 includes a groove 331 opened inside the support plate 31, and the groove 331 communicates with each mounting groove 321. Two pressure plates 332 are slidably arranged inside the groove 331. The top of each of the two pressure plates 332 is fixed with a movable block 333. The top of the support plate 31 is provided with a sliding groove 336 that communicates with the groove 331. Both movable blocks 333 pass through the sliding groove 336 and extend out of the top of the support plate 31, and the movable blocks 333 are slidably connected to the sliding groove 336. A threaded rod 334 is threadedly connected between the two movable blocks 333, and the threads between the two movable blocks 333 and the threaded rod 334 have opposite directions of rotation, which is used to drive the two movable blocks 333 to move in opposite directions. Two fixing blocks 335 are fixed to the top of the support plate 31. The two fixing blocks 335 are respectively located on the outside of the two movable blocks 333 and at both ends of the threaded rod 334, and the fixing blocks 335 are rotatably connected to the threaded rod 334.

[0023] After the arc-shaped positioning plate 1 is installed on the mounting plate 2, due to the design of the spring 325 in the support member 32, each support block 324 can easily fit against the rear end of the arc-shaped positioning plate 1 with different curvatures. Figure 3 As shown, the threaded rod 334 is then rotated so that the two movable blocks 333 on the threaded rod 334 move closer to the two pressure plates 332 respectively, until the pressure plates 332 contact the multiple sliders 322 and press and fix the sliders 322, thus ensuring the support stability of the arc-shaped positioning plates 1 with different curvatures.

[0024] During the design process of the arc-shaped positioning fixture, the designer only needs to follow the gravity line provided by the forming process, first align the gravity line with the molded surface, and then create an arc surface according to the edge of the gravity line. Ensure a minimum straight section of 10mm at the bottom and a minimum straight section of 10mm at the top. At the same time, pay attention to aligning the upper straight section with the blank line. Subsequently, the fitter on site can carry out the construction according to the requirements of the design drawings.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An arc-shaped positioning fixture, characterized in that: It includes an arc-shaped positioning plate (1), an mounting plate (2) is provided on the rear side of the bottom of the arc-shaped positioning plate (1), and a support mechanism (3) is provided on the top of the mounting plate (2). The support mechanism (3) is located on the rear side of the arc-shaped positioning plate (1) and is used to support the arc-shaped positioning plate (1). The support mechanism (3) includes a support plate (31), and the support plate (31) has two sets of support components inside, each set of support components including multiple vertically arranged support members (32). The support member (32) includes an installation groove (321) opened inside the support plate (31), the installation groove (321) extends to the front end of the support plate (31), a slider (322) is slidably provided inside the installation groove (321), the front end of the slider (322) is provided with a support block (324) that contacts the rear end of the arc-shaped positioning plate (1), and the rear end of the slider (322) is connected to the inner wall of the installation groove (321) by a spring (325).

2. The arc-shaped positioning fixture according to claim 1, characterized in that: The front end of the slider (322) is fixed with a shell (323), and the support block (324) is located inside the shell (323) and is fixedly connected to the shell (323).

3. The arc-shaped positioning fixture according to claim 1, characterized in that: The support plate (31) is provided with a fixing member (33) inside, and the fixing member (33) is located between the two sets of support components; The fastener (33) includes a groove (331) formed inside the support plate (31), and the groove (331) communicates with each mounting slot (321). Two pressure plates (332) are slidably provided inside the groove (331).

4. The arc-shaped positioning fixture according to claim 3, characterized in that: Two movable blocks (333) are fixed at the top of each of the two pressure plates (332). The two movable blocks (333) are located inside the support plate (31) and extend out of the top of the support plate (31). A threaded rod (334) is threaded between the two movable blocks (333), and the threads between the two movable blocks (333) and the threaded rod (334) are opposite in direction, which is used to drive the two movable blocks (333) to move in opposite directions.

5. The arc-shaped positioning fixture according to claim 4, characterized in that: The top of the support plate (31) is fixed with two fixing blocks (335). The two fixing blocks (335) are respectively located on the outside of the two movable blocks (333). The two fixing blocks (335) are respectively located at both ends of the threaded rod (334), and the fixing blocks (335) are rotatably connected to the threaded rod (334).

6. The arc-shaped positioning fixture according to claim 4, characterized in that: The top of the support plate (31) is provided with a sliding groove (336) that communicates with the groove (331). Both movable blocks (333) pass through the sliding groove (336) and are slidably connected to the sliding groove (336).

7. The arc-shaped positioning fixture according to claim 1, characterized in that: The mounting plate (2) has two connecting blocks (21) fixed on both sides of its front end. The two connecting blocks (21) are respectively located on both sides of the arc-shaped positioning plate (1). Each connecting block (21) has a fixing pin (22) through it. The fixing pin (22) is threadedly connected to the connecting block (21), and one end of the fixing pin (22) is inserted into the arc-shaped positioning plate (1) for fixing the arc-shaped positioning plate (1).

8. The arc-shaped positioning fixture according to claim 1, characterized in that: The mounting plate (2) has two mounting holes (23) at its rear end, which are respectively located on both sides of the support plate (31).

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