Stamping and edge covering mechanism

Abstract

The utility model relates to the technical field of automobile manufacturing stamping, in particular to a stamping and edge covering mechanism which comprises a base, a supporting assembly, a limiting assembly and an edge covering assembly. The edge covering assembly comprises a fixing plate, a limiting rail arranged on the fixing plate, a supporting block installed in the limiting rail in a sliding mode, an L-shaped block fixedly connected with the supporting block, an edge covering arc face arranged at the bent position of the bottom of the inner wall of the L-shaped block, an edge covering arc groove formed in the bent position of the top of the inner wall of the L-shaped block, and a fixing block fixedly installed at the end, close to the base, of the top of the L-shaped block. The reset spring is linearly and fixedly installed at the bottom of the L-shaped block, the connecting plate is fixedly connected with the reset spring, and the stamping assembly pushes the fixing block. According to the utility model, the pushing block pushes the fixing block, so that the supporting block moves along the limiting track, the L-shaped block is driven to horizontally move firstly and then vertically descend, and the edge covering of the plate is completed through the edge covering arc groove and the edge covering arc surface, so that the aims of reducing the working intensity and improving the edge covering efficiency are fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing stamping, and particularly relates to a stamping hemming mechanism. Background Art

[0002] The existing hemming mechanism generally realizes complete hemming in two steps. The first step: use stamping to turn the edge to 90°. The second step: use a special hemming bevel mechanism to press from 90° to a 0° plane. The whole mechanism is very complex and costly. The cost of a single set of dies for the special flanging bevel mechanism is about 200,000 yuan. It is very suitable for large and complex-shaped parts, but for some parts with simple shapes and small outer dimensions, the cost is too high.

[0003] The prior art, such as a stamping hemming mechanism disclosed in the patent publication number CN217393501U, includes a first die for placing a sheet metal, a second die arranged opposite to the first die to press the sheet metal, and a third die moving along the edge of the second die towards the first die; a hemming arc surface is provided on the side of the third die facing the first die, and the edge of the sheet metal is folded through the hemming arc surface for edge pressing. The utility model can automatically realize flanging and hemming by the mutual movement of parts, which can reduce the development and maintenance costs of the dies, reduce the production cycle, and improve production efficiency.

[0004] In actual use, the mutual movement between parts requires workers to apply power to make the parts move, which increases the working intensity of the workers and affects production efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a stamping hemming mechanism that can effectively solve the above technical problems.

[0007] To achieve the purpose of the utility model, the following technical solution is adopted: a stamping hemming mechanism, including: a base, a support assembly, a limit assembly, and a hemming assembly;

[0008] The hemming assembly includes: a fixing plate, a limit track arranged on the fixing plate, a support block slidably installed in the limit track, an L-shaped block fixedly connected to the support block, a hemming arc surface arranged at the bent part of the bottom inner wall of the L-shaped block, a hemming arc groove arranged at the bent part of the top inner wall of the L-shaped block, a fixing block fixedly installed at one end of the top of the L-shaped block close to the base, a return spring linearly fixedly installed at the bottom of the L-shaped block, a connecting plate fixedly connected to the return spring, and a stamping assembly for pushing the fixing block.

[0009] Furthermore, the stamping assembly includes: a fixed frame, a cylinder fixedly installed in the top opening of the fixed frame, a telescopic rod fixedly installed at the bottom of the cylinder, and a pushing block fixedly installed at the bottom of the telescopic rod.

[0010] Furthermore, the support assembly includes: a limiting groove, a guiding rod fixedly installed in the limiting groove, a moving block slidably installed on the guiding rod, a supporting spring wound around the guiding rod and fixedly installed between one end of the limiting groove and the moving block, a supporting plate fixedly connected to the moving block, sliding grooves symmetrically arranged at the bottom of the supporting plate, limiting plates aligned with the sliding grooves, and one end of the limiting plate fixedly installed on the inner wall of the base.

[0011] Furthermore, the limiting track is L-shaped.

[0012] Furthermore, the fixed block and the pushing block are provided with inclined surfaces that contact each other.

[0013] Compared with the prior art, the present utility model has the following beneficial effects: For a stamping edge wrapping mechanism of the present utility model, when the cylinder is started, the telescopic rod pushes the pushing block, the pushing block descends, and the fixed block is pushed through the inclined surface. The fixed block drives the L-shaped block to move, and the L-shaped block drives the supporting block to move horizontally in the limiting track, so that the edge wrapping arc surface on the L-shaped block contacts the sheet material and drives the supporting plate to drive the moving block to compress the supporting spring, and the part of the sheet material exceeding the blank holding plate is turned up. Then, when the supporting block moves vertically downward in the limiting track and drives the L-shaped block to descend, the edge wrapping arc groove on the L-shaped block contacts the sheet material, turns the sheet material downward, and wraps the sheet material on the blank holding plate. At the same time, the L-shaped block compresses the reset spring at the bottom. After the telescopic rod contracts, the reset spring and the supporting spring push the L-shaped block to reset, achieving the purpose of reducing the working intensity and improving the edge wrapping efficiency. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0015] Figure 1 It is a schematic structural diagram of a stamping edge wrapping mechanism of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the support assembly of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the limiting assembly of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the edge wrapping assembly of the present utility model.

[0019] In the figure: 101, base; 102, support leg; 103, loading port; 104, sheet metal; 105, blank holder; 200, support assembly; 201, support plate; 202, moving block; 203, support spring; 204, limit plate; 205, chute; 206, guide rod; 207, limit groove; 300, limit assembly; 301, threaded rod; 302, limit block; 303, limit spring; 304, telescopic block; 305, rotating block; 306, installation groove; 400, edge wrapping assembly; 401, fixed frame; 402, cylinder; 403, telescopic rod; 404, push block; 405, fixed block; 406, L-shaped block; 407, edge wrapping arc groove; 408, edge wrapping arc surface; 409, return spring; 410, connecting plate; 411, fixing plate; 412, limit track; 413, support block. Detailed implementation manners

[0020] In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there can also be an intermediate mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intermediate mechanism at the same time. When a mechanism is considered to be "disposed on" another mechanism, it can be directly disposed on the other mechanism or there may be an intermediate mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] As Figures 1 to 4 shown, a stamping edge wrapping mechanism of the present utility model includes: a base 101, a support assembly 200, a limit assembly 300, and an edge wrapping assembly 400. Support legs 102 are symmetrically and fixedly installed at the bottom of the base 101. A loading port 103 is provided at one end of the base 101. A sheet metal 104 is slidably installed in the loading port 103. A blank holder 105 is slidably installed on the top of the sheet metal 104.

[0023] The edge wrapping component 400 includes: a fixing plate 411, the fixing plate 411 is symmetrically and fixedly installed at one end of the base 101 away from the feeding port 103, a limiting track 412 provided on the fixing plate 411, a support block 413 slidably installed in the limiting track 412, an L-shaped block 406 fixedly connected to the support block 413, an edge wrapping arc surface 408 provided at the bent part of the inner wall bottom of the L-shaped block 406, an edge wrapping arc groove 407 provided at the bent part of the inner wall top of the L-shaped block 406, a fixing block 405 fixedly installed at one end of the top of the L-shaped block 406 close to the base 101, a reset spring 409 linearly and fixedly installed at the bottom of the L-shaped block 406, a connecting plate 410 fixedly connected to the reset spring 409, and a stamping component for pushing the fixing block 405.

[0024] The stamping component includes: a fixing frame 401, the fixing frame 401 is fixedly installed on the top of the fixing plate 411, a cylinder 402 fixedly installed in the top opening of the fixing frame 401, a telescopic rod 403 fixedly installed at the bottom of the cylinder 402, and a pushing block 404 fixedly installed at the bottom of the telescopic rod 403.

[0025] In the present utility model, the size of the edge wrapping arc surface 408 is a quarter arc surface. When the edge wrapping arc groove 407 horizontally extrudes the sheet material 104 or the edge wrapping arc surface 408 extrudes the sheet material 104 downward, the inner wall of the L-shaped block 406 can continue to push the part of the sheet material 104 exceeding the blank holding plate 105 to turn over; the diameters of the edge wrapping arc groove 407 and the edge wrapping arc surface 408 are not greater than the thickness of the edge pressing plate 105. When the inner wall top of the L-shaped block 406 extrudes the sheet material 104 downward, the part of the sheet material 104 that turns up deforms downward to complete the edge wrapping of the edge pressing plate 105.

[0026] The support component 200 includes: a limiting groove 207, the limiting groove 207 is symmetrically arranged on both sides of the inner wall of the base 101, a guide rod 206 fixedly installed in the limiting groove 207, a moving block 202 slidably installed on the guide rod 206, a support spring 203 wound around the guide rod 206, the support spring 203 is fixedly installed between one end of the limiting groove 207 and the moving block 202, a support plate 201 fixedly connected to the moving block 202, sliding grooves 205 symmetrically arranged at the bottom of the support plate 201, a limiting plate 204 aligned with the sliding grooves 205, and one end of the limiting plate 204 is fixedly installed on the inner wall of the base 101.

[0027] In the present utility model, the movement space of the blank holding plate is restricted by the support plate 201 and the limiting plate 204 to prevent the part of the sheet material 104 located on the top of the base 101 from deforming after being extruded.

[0028] The limiting component 300 includes: a mounting groove 306, the mounting groove 306 is arranged at one end of the inner wall bottom of the base 101 close to the feeding port 103, a threaded rod 301 rotatably mounted in the mounting groove 306, a rotating block 305 fixedly mounted at one end of the threaded rod 301, a limiting block 302 threadedly mounted on the threaded rod 301, a groove arranged at the top of the limiting block 302, a telescopic block 304 slidably mounted in the groove, and a limiting spring 303 fixedly mounted between the bottom of the telescopic block 304 and the bottom of the groove.

[0029] In the present utility model, a slope is provided at the top of the side of the telescopic block 304 close to the feeding port 103. When the sheet material 104 and the pressure plate 105 are inserted into the feeding port 103, the sheet material 104 and the pressure plate 105 can push the slope on the telescopic block 304 to press the telescopic block 304 into the groove at the top of the limiting block 302, so that the sheet material 104 and the pressure plate 105 can be fed smoothly. By rotating the rotating block 305, the threaded rod 301 drives the limiting block 302 to move, and the limiting block 302 drives the telescopic block 304 to move, so that the vertical side of the telescopic block 304 abuts against one end of the sheet material 104 and the pressure plate 105, and the sheet material 104 and the pressure plate 05 are limited.

[0030] The limiting track 412 is L-shaped, and slopes in contact with each other are provided on the fixed block 405 and the pushing block 404. When the pushing block 404 vertically pushes down the fixed block 405, the supporting block 413 is located in the horizontal part of the limiting track 412, so that the fixed block 405 cannot move downward. The slope on the pushing block 404 slides along the slope on the fixed block 405 and pushes the fixed block 405 to move horizontally. When the supporting block 413 moves to the vertical part of the limiting track 412, the pushing block 404 pushes the fixed block 405 to move downward.

[0031] Working principle: The sheet material 104 and the edge holding plate 105 are placed on the bottom of the inner wall of the base 101 in sequence through the loading port 103. When the sheet material 104 and the edge holding plate 105 pass through the telescopic block 304, the telescopic block 304 is pressed into the groove through the inclined surface on the telescopic block 304, so that the sheet material 104 and the edge holding plate 105 can pass smoothly. The sheet material 104 is prevented from being deformed by the limit plate 204, and the rotating block 305 is rotated, and the rotating block 305 drives the threaded rod 301 to rotate. The limiting block 302 is slid in the installation groove 306, and moves to the side of the telescopic block 304 to press against one end of the sheet 104 and the edge pressing plate 105, so as to limit the edge pressing plate 105 and the sheet 104, and the cylinder 402 is started, and the telescopic rod 403 is stretched to push the push block 404, and the push block 404 pushes the fixed block 405, and the fixed block 405 drives the L-shaped block 406 to move, and the L-shaped block 406 drives the support block 413 to move horizontally in the limiting track 412, and the L-shaped block 4 06 moves horizontally and pushes the sheet material 104 through the edging arc surface 408, so that the part of the sheet material 104 exceeding the edge holding plate 105 is squeezed and deformed by the edging arc surface 408 and flanged upward. At the same time, the L-shaped block 406 pushes the support plate 201, and the support plate 201 drives the moving block 202 to compress the support spring 203, and the L-shaped block 406 drives the return spring 409 and the connecting plate 410 to move. When the support block 413 moves to the vertical part of the limiting track 412, the push block 404 pushes the fixed block 405 and the L-shaped block 406 to descend, and the L-shaped block 406 compresses the return spring 409. The edging arc groove 407 squeezes the part of the sheet material 104 that is flanged upward downward, so that the part of the sheet material 104 that is flanged upward is deformed downward, completing the edging of the edge holding plate 105. After the telescopic rod 403 contracts, the return spring 409 and the support spring 203 push the L-shaped block 406 to reset. This mechanism achieves the purpose of reducing work intensity and improving the efficiency of edge binding.

[0032] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A stamping hemming mechanism, characterized in that, Comprising: A base (101), a support assembly (200), a limiting assembly (300), and a edge-wrapping assembly (400); The edge-wrapping assembly (400) includes: a fixing plate (411), a limiting track (412) provided on the fixing plate (411), a support block (413) slidably mounted in the limiting track (412), an L-shaped block (406) fixedly connected to the support block (413), an edge-wrapping arc surface (408) provided at the bent portion of the inner wall bottom of the L-shaped block (406), an edge-wrapping arc groove (407) provided at the bent portion of the inner wall top of the L-shaped block (406), a fixing block (405) fixedly mounted at one end of the top of the L-shaped block (406) close to the base (101), a return spring (409) linearly fixedly mounted at the bottom of the L-shaped block (406), a connecting plate (410) fixedly connected to the return spring (409), and a stamping assembly for pushing the fixing block (405).

2. The stamping hemming mechanism according to claim 1, wherein, The stamping assembly includes: a fixing frame (401), a cylinder (402) fixedly mounted in the top opening of the fixing frame (401), a telescopic rod (403) fixedly mounted at the bottom of the cylinder (402), and a pushing block (404) fixedly mounted at the bottom of the telescopic rod (403).

3. A stamping hemming mechanism according to claim 1, characterized in that, The support assembly (200) includes: a limiting groove (207), a guiding rod (206) fixedly mounted in the limiting groove (207), a moving block (202) slidably mounted on the guiding rod (206), a support spring (203) wound around the guiding rod (206), the support spring (203) being fixedly mounted between one end of the limiting groove (207) and the moving block (202), a support plate (201) fixedly connected to the moving block (202), sliding grooves (205) symmetrically provided at the bottom of the support plate (201), a limiting plate (204) aligned with the sliding grooves (205), and one end of the limiting plate (204) being fixedly mounted on the inner wall of the base (101).

4. The stamping hemming mechanism according to claim 1, characterized in that, The limiting track (412) is L-shaped.

5. The stamping hemming mechanism according to claim 2, characterized in that, The fixing block (405) and the pushing block (404) are provided with inclined surfaces that contact each other.

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