Scratch-proof stamping device

Abstract

The utility model discloses an anti-scratch stamping device which comprises a base plate and a lower pressing rod, an arc-shaped base is installed on the base plate, a lower pressing block is installed on the lower pressing rod, clamping grooves are formed in the bent positions of the two ends of the arc-shaped base, a top block and a side block are clamped in the clamping grooves in a sliding mode, cambered surface grooves are formed in the top block and the side block, and the two cambered surface grooves form an arc-shaped groove. The arc-shaped groove is rotationally connected with a roller pin, and a limiting mechanism for preventing the top block, the side block and the roller pin from sliding is further installed on the arc-shaped base. According to the straight plate bending machine, through the roller pins rotationally connected in the arc-shaped grooves formed by the top blocks and the side blocks, in the straight plate bending process, friction between the arc-shaped base and the straight plate can be reduced through rotation of the roller pins, and therefore scratches caused to the straight plate are reduced; through cooperative arrangement of the limiting mechanism, after the ejector pin is arranged, friction between the ejector pin and the straight plate is weak, but the thin edges of the ejector block and the side block are abraded, the ejector block and the side block can be replaced in time by disassembling the limiting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-scratch stamping devices, in particular to an anti-scratch stamping device. Background Technique

[0002] Stamping is a common metal processing technology. By applying pressure to plates, steel materials, metal sheets, etc., they are deformed to form the shapes or patterns required by people, improving the functionality and aesthetics of the stamped materials. Since a huge external force is required during the stamping process, people need to use stamping devices to complete this work.

[0003] In the prior art, when stamping an arc-shaped hoop, it is often cooperated by an arc-shaped base and an arc-shaped lower pressing block with a matching shape to press a straight plate into an arc shape. However, in the actual production process, it is found that scratches are easily generated on the bent straight plate at the two turning corners of the arc-shaped base, so it needs to be improved. Content of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide an anti-scratch stamping device.

[0005] In order to achieve the above object, the utility model provides an anti-scratch stamping device, which includes a chassis and a lower pressing rod. An arc-shaped base is installed on the chassis, and a lower pressing block is installed on the lower pressing rod. Card slots are provided at both ends of the arc-shaped base at the bending positions. A top block and a side block are slidably clamped in the card slots. Arc-shaped grooves are provided on both the top block and the side block. The two arc-shaped grooves form an arc-shaped groove. A rolling needle is rotatably connected to the arc-shaped groove. A limiting mechanism for preventing the top block, the side block and the rolling needle from sliding is also installed on the arc-shaped base.

[0006] Preferably, a first clamping block and a second clamping block are installed in the card slot. The top block is slidably clamped with the first clamping block, and the side block is slidably clamped with the second clamping block. A number of first limiting blocks are installed on the top block, and a number of second limiting blocks are installed on the side block. The first limiting blocks and the second limiting blocks are inserted into each other.

[0007] Preferably, the limiting mechanism includes a sleeve rod and a sleeve shaft. Limiting holes are provided on the first limiting block and the second limiting block. The sleeve shaft is slidably connected in the limiting hole. The sleeve rod and the sleeve shaft are threadedly connected. A first abutting block is installed on the sleeve rod, and a second abutting block is installed on the sleeve shaft. Both the first abutting block and the second abutting block abut against the top block, the side block and the rolling needle.

[0008] Preferably, the second abutting block is a square block, and an L-shaped frame is installed on the arc-shaped base. The second abutting block is arranged in cooperation with the L-shaped frame.

[0009] Preferably, a cross through groove is provided on the first abutting block.

[0010] Preferably, the arc-shaped base is installed on the chassis through bolts, and the lower pressing block is installed on the lower pressing rod through bolts.

[0011] Compared with the prior art, the technical solution has at least one of the following beneficial effects:

[0012] By means of the needle roller rotatably connected in the arc-shaped groove jointly formed by the top block and the side block, during the process of bending the straight plate, the rotation of the needle roller can reduce the friction between the arc-shaped base and the straight plate, thereby reducing the scratches on the straight plate;

[0013] Through the cooperative setting of the limiting mechanism, after the ejector pin is set, when the thinner edges of the top block and the side block, which have relatively weak friction with the straight plate but still exist, are worn, the limiting mechanism can be disassembled in time for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of an embodiment of the present utility model;

[0015] Figure 2 It is the exploded view of the top block and the side block of an embodiment of the present utility model;

[0016] Figure 3 It is the rear view of an embodiment of the present utility model;

[0017] In the figure, 1, base; 2, downward pressure rod; 3, arc-shaped base; 4, downward pressure block; 5, card slot; 6, top block; 7, side block; 8, arc-shaped groove; 9, needle roller; 10, first clamping block; 11, second clamping block; 12, first limiting block; 13, second limiting block; 14, sleeve rod; 15, sleeve shaft; 16, limiting hole; 17, first abutting block; 18, second abutting block; 19, L-shaped frame; 20, cross through slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0019] Please refer to Figures 1 to 3, an embodiment of the present application provides a stamping device for preventing scratches, including a chassis 1 and a downward pressing rod 2. The downward pressing rod 2 is connected to the output end of a hydraulic cylinder and can drive a downward pressing block 4 to press downward. An arc-shaped base 3 is installed on the chassis 1, and a downward pressing block 4 is installed on the downward pressing rod 2. Clamping grooves 5 are provided at both bent ends of the arc-shaped base 3. A top block 6 and a side block 7 are slidably clamped in the clamping grooves 5. Arc-shaped grooves are provided on both the top block 6 and the side block 7, and the two arc-shaped grooves form an arc-shaped groove 8. A rolling needle 9 is rotationally and slidably connected to the arc-shaped groove 8. A limiting mechanism for preventing the top block 6, the side block 7, and the rolling needle 9 from sliding is further installed on the arc-shaped base 3.

[0020] In this embodiment, both ends of the straight plate are supported by the higher parts on both sides of the groove of the arc-shaped base 3. Then, the downward pressing block 4 is driven by the downward pressing rod 2 to move downward to stamp the straight plate. During the process of the straight plate gradually becoming bent, the force application points are the center of the downward pressing block 4 and the bent ends of the groove of the arc-shaped base 3. Therefore, the straight plate will abut against the rolling needle 9 on the arc-shaped base 3 and drive the rolling needle 9 to rotate, weakening the friction effect between the arc-shaped base 3 and the straight plate, thereby reducing scratches. Compared with the edges of the top block 6 and the side block 7 where the friction with the straight plate is relatively weak at the rolling needle 9, that is, the thinner edges of the arc-shaped groove 8 are prone to wear after long-term stamping. Therefore, by slidably clamping the top block 6 and the side block 7 in the clamping groove 5 and limiting the top block 6, the side block 7, and the rolling needle 9 through the limiting mechanism, after the limiting mechanism of the top block 6 and the side block 7 is removed, they can be slid out for replacement.

[0021] In some embodiments, to achieve the slidable clamping of the top block 6 and the side block 7 in the clamping groove 5, a first clamping block 10 and a second clamping block 11 are installed in the clamping groove 5. The top block 6 is slidably clamped with the first clamping block 10, and the side block 7 is slidably clamped with the second clamping block 11. A number of first limiting blocks 12 are installed on the top block 6, and a number of second limiting blocks 13 are installed on the side block 7. The first limiting blocks 12 and the second limiting blocks 13 are inserted into each other. After the first limiting blocks 12 and the second limiting blocks 13 are inserted into each other, the top block 6 and the side block 7 can be connected together, facilitating the formation of the arc-shaped groove 8. Moreover, through the clamping of the first clamping block 10 with the top block 6 and the clamping of the second clamping block 11 with the side block 7, the overall formed by the top block 6 and the side block 7 can be slidably clamped in the chute 5.

[0022] In some embodiments, to facilitate the limitation of the top block 6, side block 7, and needle roller 9, a limiting mechanism is provided, which includes a sleeve rod 14 and a sleeve shaft 15. The first limiting block 12 and the second limiting block 13 are provided with limiting holes 16. The sleeve shaft 15 is slidably connected in the limiting hole 16, and the sleeve rod 14 and the sleeve shaft 15 are threadedly connected. A first abutting block 17 is installed on the sleeve rod 14, and a second abutting block 18 is installed on the sleeve shaft 15. Both the first abutting block 17 and the second abutting block 18 are in abutment with the top block 6, side block 7, and needle roller 9. After passing the sleeve shaft 15 through the limiting hole 16, the sleeve rod 14 and the sleeve shaft 15 are threadedly connected, so that the first abutting block 17 and the second abutting block 18 can abut against the top block 6, side block 7, and needle roller 9, and also abut against the arc-shaped base 3, thereby being able to limit the two ends where the top block 6 and side block 7 slide; and the sleeve shaft passes through the limiting hole 16 provided on the first limiting block 12 and the second limiting block 13, further improving the connection degree between the top block 6 and the side block 7.

[0023] In some embodiments, to facilitate the tightening of the threaded connection between the sleeve rod 14 and the sleeve shaft 15, the second abutting block 18 is set as a square block, and an L-shaped frame 19 is installed on the arc-shaped base 3. The second abutting block 18 is arranged in cooperation with the L-shaped frame 19. Thus, the second abutting block 18 is stuck on the L-shaped frame 19, and then the first abutting block 17 is rotated, thereby realizing the threaded connection between the sleeve rod 14 and the sleeve shaft 15.

[0024] In some embodiments, to facilitate screwing the sleeve rod 14 into the sleeve shaft 15 through the first abutting block 17, a cross through groove 20 is provided on the first abutting block 17.

[0025] In some embodiments, to facilitate the installation of the arc-shaped base 3 and the pressing block 4, the arc-shaped base 3 is installed on the chassis 1 through bolts, and the pressing block 4 is installed on the pressing rod 2 through bolts.

[0026] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0027] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A stamping device for preventing scratches, comprising a chassis (1) and a downward pressing rod (2). An arc-shaped base (3) is installed on the chassis (1), and a downward pressing block (4) is installed on the downward pressing rod (2). It is characterized in that, At both ends of the bent parts of the arc-shaped base (3), clamping grooves (5) are provided. A top block (6) and a side block (7) are slidably clamped in the clamping grooves (5). Arc-shaped grooves are provided on both the top block (6) and the side block (7). The two arc-shaped grooves form an arc-shaped groove (8). A needle roller (9) is rotatably connected to the arc-shaped groove (8). A limiting mechanism for preventing the top block (6), the side block (7) and the needle roller (9) from sliding is further installed on the arc-shaped base (3).

2. The anti-scratch stamping device according to claim 1, wherein, A first clamping block (10) and a second clamping block (11) are installed in the clamping groove (5). The top block (6) is slidably clamped with the first clamping block (10), and the side block (7) is slidably clamped with the second clamping block (11). A number of first limiting blocks (12) are installed on the top block (6), and a number of second limiting blocks (13) are installed on the side block (7). The first limiting blocks (12) are inserted into the second limiting blocks (13).

3. The anti-scratch stamping device according to claim 2, wherein The limiting mechanism includes a sleeve rod (14) and a sleeve shaft (15). Limiting holes (16) are provided on the first limiting blocks (12) and the second limiting blocks (13). The sleeve shaft (15) is slidably connected in the limiting holes (16). The sleeve rod (14) and the sleeve shaft (15) are threadedly connected. A first abutting block (17) is installed on the sleeve rod (14), and a second abutting block (18) is installed on the sleeve shaft (15). The first abutting block (17) and the second abutting block (18) are both abutted against the top block (6), the side block (7) and the needle roller (9).

4. The anti-scratch stamping device according to claim 3, wherein, The second abutting block (18) is a square block. An L-shaped frame (19) is installed on the arc-shaped base (3). The second abutting block (18) is arranged in cooperation with the L-shaped frame (19).

5. The anti-scratch stamping device according to claim 3, wherein, A cross through groove (20) is provided on the first abutting block (17).

6. The anti-scratch stamping device according to claim 1, characterized in that, The arc-shaped base (3) is installed on the chassis (1) by bolts, and the lower pressing block (4) is installed on the lower pressing rod (2) by bolts.

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