Edge folding die

Abstract

The utility model discloses an edge folding die, and particularly relates to the technical field of dies, the edge folding die comprises a die base and a baffle frame fixedly connected on the die base, the die base is provided with an edge folding fixed die and an edge folding movable die, the edge folding fixed die is fixedly connected on the upper surface of the die base, and the baffle frame is fixedly connected on the die base. A first distance adjusting structure used for driving the edge folding movable die to move transversely is arranged on the die base, a limiting plate is arranged on one side of the edge folding fixed die, and a second distance adjusting structure used for driving the limiting plate to move transversely is arranged on the edge folding fixed die. A telescopic device is fixedly connected to the baffle frame, and a telescopic sliding structure is arranged on the telescopic device. The utility model solves the problems that the conventional lower bending die needs to adjust the flanging position of the metal shielding cover to realize the processing of twice flanging, and the operation is more troublesome; the technical problem that an existing edge folding die cannot be rapidly suitable for rapid machining of multiple folded edges of metal shielding covers of different specifications and sizes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more specifically, to a hemming mold. Background Art

[0002] With the rapid development of electronic technology, the computing speed of each electronic unit in a circuit board is getting faster and faster, and the clock frequency of each signal on the electronic circuit board is also getting higher and higher. Therefore, in order to better reduce the mutual influence between units, reduce electromagnetic wave interference and radiation, in the design, a shielding cover is used to cover the electronic components on the circuit board to play a shielding role. At present, in order to meet the installation requirements of the circuit board metal shielding cover, the straight edge of the original component often needs to be hemmed. Hemming can improve the welding strength with the circuit board, and a hemming mold is required for the processing of hemming.

[0003] At present, when the circuit board metal shielding cover is being hemmed, manual workers usually put it on a stamping mold that can be hemmed and use pressure to change the shape of the metal shielding cover. Generally, the metal shielding cover needs to be hemmed twice, and the hemming position needs to be adjusted manually for the two hemming operations, which is rather troublesome; in addition, the current hemming mold cannot quickly adapt to the rapid processing of hemming at multiple positions of metal shielding covers with different specifications and sizes. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hemming mold. The technical problem to be solved by the utility model is: currently, the bending mold needs to adjust the hemming position of the metal shielding cover to realize the processing of hemming twice, and the operation is rather troublesome; the current hemming mold cannot quickly adapt to the rapid processing of hemming at multiple positions of metal shielding covers with different specifications and sizes.

[0005] To achieve the above object, the utility model provides the following technical solution: a hemming mold, including a mold base and a baffle frame fixedly connected to the mold base. A hemming fixed mold and a hemming movable mold are arranged on the mold base. The hemming fixed mold is fixedly connected to the upper surface of the mold base. A distance adjustment structure one for driving the hemming movable mold to move horizontally is arranged on the mold base. A limiting plate is arranged on one side of the hemming fixed mold, and a distance adjustment structure two for driving the limiting plate to move horizontally is arranged on the hemming fixed mold;

[0006] A telescopic device is fixedly connected to the baffle frame, and a telescopic sliding structure is arranged on the telescopic device. A pair of hemming pressing blocks are arranged on the telescopic sliding structure, and a guiding and sliding component is arranged on one of the hemming pressing blocks and the hemming movable mold;

[0007] When the hemming movable die moves horizontally, the hemming movable die drives one of the hemming pressing blocks to move horizontally synchronously through the guiding and sliding assembly; when one of the hemming pressing blocks moves vertically, the hemming pressing block is slidably connected to the hemming movable die through the guiding and sliding assembly.

[0008] In a preferred embodiment, the distance adjusting structure I includes a threaded seat fixedly connected to the upper surface of the die base, a precision lead screw I threadedly connected to the threaded seat, a rotating head I fixedly connected to one end of the precision lead screw I, a pair of sliding seats fixedly connected to the upper surface of the die base, and a polished rod I slidably connected to each sliding seat. The end of the precision lead screw I facing away from the rotating head I is rotatably connected to the hemming movable die, and the polished rod I is fixedly connected to the hemming movable die.

[0009] In a preferred embodiment, the distance adjusting structure II includes a precision lead screw II rotatably connected to the limiting plate, a moving plate threadedly connected to the precision lead screw II, a rotating head II fixedly connected to one end of the precision lead screw II, and a polished rod II slidably connected to the moving plate. The polished rod II is fixedly connected to the limiting plate.

[0010] In a preferred embodiment, the telescopic sliding structure includes a pressing plate fixedly connected to the output end of the telescopic device and a pair of telescopic rods fixedly penetrating through the pressing plate. A pair of hemming pressing blocks are fixedly connected to both ends of the pair of telescopic rods.

[0011] In a preferred embodiment, the guiding and sliding assembly includes a sliding rod fixedly connected to one end of one of the hemming pressing blocks and an inserting plate fixedly connected to one end of the hemming movable die. The sliding rod is slidably connected to the inserting plate.

[0012] In a preferred embodiment, chamfering treatments are performed at the corners of the hemming fixed die, the hemming movable die, and the pair of hemming pressing blocks.

[0013] In a preferred embodiment, scale lines are provided on the die base, and the scale lines are provided on one side of the hemming fixed die and the hemming movable die.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. For a hemming die of the present utility model, by providing a hemming fixed die, a hemming movable die, and a pair of hemming pressing blocks, and performing chamfering treatments at the corners of the structures thereon, the hemming pressing block can move down between the hemming fixed die and the hemming movable die to simultaneously perform hemming processing on both sides of the circuit board shielding cover component without adjusting the hemming position, thereby improving the hemming efficiency.

[0016] 2. A hemming die of the present utility model, by providing a stop plate and a laterally adjustable limit plate, the two can provide abutting and limiting for the rectangular circuit board shielding cover component, so as to improve the feeding accuracy of the circuit board shielding cover based on the hemming fixed die and the hemming movable die positions, and because the limit plate can be laterally adjusted, it can adapt to the limiting requirements of circuit board shielding cover components of different lengths.

[0017] 3. A hemming die of the present utility model, by providing a laterally adjustable hemming movable die, it can adjust the hemming distance facing or back to the hemming fixed die, so as to adapt to the hemming requirements of circuit board shielding cover components of different lengths, and because a guiding and sliding component is provided on the hemming movable die and one of the hemming pressing blocks, when the hemming movable die moves laterally, the hemming movable die can drive one of the hemming pressing blocks to move laterally synchronously through the guiding and sliding component; when one of the hemming pressing blocks moves longitudinally, the hemming pressing block can be slidably connected to the hemming movable die through the guiding and sliding component, so as to achieve the effect of synchronous adjustment with the hemming movable die while ensuring that the hemming pressing block can exert effective hemming pressure, and this can reduce the hemming adjustment steps for circuit board shielding cover components of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0019] Figure 1 It is a schematic structural diagram of the whole of the present utility model from the first perspective.

[0020] Figure 2 It is a schematic structural diagram of the whole of the present utility model from the second perspective.

[0021] Figure 3 It is a schematic structural diagram of the hemming movable die, the distance adjustment structure I, the telescopic sliding structure and the hemming pressing block of the present utility model.

[0022] Figure 4 It is a schematic structural diagram of the hemming fixed die, the limit plate and the distance adjustment structure II of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of the telescopic sliding structure and the hemming pressing block of the present utility model.

[0024] The reference numerals are as follows: 1, mold base; 2, baffle frame; 3, hemming fixed mold; 31, hemming movable mold; 4, distance adjustment structure I; 41, threaded seat; 42, precision lead screw I; 43, rotating head I; 44, sliding seat; 45, optical rod I; 5, limit plate; 6, distance adjustment structure II; 61, precision lead screw II; 62, moving plate; 63, rotating head II; 64, optical rod II; 7, telescopic device; 8, telescopic sliding structure; 81, pressing plate; 82, telescopic rod; 9, hemming press block; 10, guide sliding assembly; 101, sliding rod; 102, inserting plate; 11, scale line. Detailed implementation manners

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] With reference to Figures 1 - 5 , the present invention provides a hemming mold, including a mold base 1 and a baffle frame 2 fixedly connected to the mold base 1. A hemming fixed mold 3 and a hemming movable mold 31 are arranged on the mold base 1. By arranging the hemming fixed mold 3 and the hemming movable mold 31, the circuit board shielding cover component to be hemmed is placed on the hemming fixed mold 3 and the hemming movable mold 31, and by pressing down on both sides of the circuit board shielding cover component, the two sides of the circuit board shielding cover component can be quickly hemmed. The hemming fixed mold 3 is fixedly connected to the upper surface of the mold base 1. A distance adjustment structure I 4 for driving the hemming movable mold 31 to move horizontally is arranged on the mold base 1. The distance adjustment structure I 4 is used to adjust the distance between the hemming movable mold 31 and the hemming fixed mold 3. A limit plate 5 is arranged on one side of the hemming fixed mold 3, and a distance adjustment structure II 6 for driving the limit plate 5 to move horizontally is arranged on the hemming fixed mold 3.

[0027] A telescopic device 7 is fixedly connected to the baffle frame 2. The telescopic device 7 uses a telescopic motor as a power device, and a telescopic sliding structure 8 is arranged on the telescopic device 7. A pair of hemming press blocks 9 are arranged on the telescopic sliding structure 8. The pair of hemming press blocks 9 are used to press on both sides of the upper surface of the circuit board shielding cover component, so as to cooperate with the hemming fixed mold 3 and the hemming movable mold 31 to realize the hemming treatment on both sides. A guide sliding assembly 10 is arranged on one of the hemming press blocks 9 and the hemming movable mold 31.

[0028] When the hemming movable die 31 moves horizontally, the hemming movable die 31 drives one of the hemming pressing blocks 9 to move horizontally synchronously through the guiding and sliding assembly 10; when one of the hemming pressing blocks 9 moves vertically, the hemming pressing block 9 is slidably connected to the hemming movable die 31 through the guiding and sliding assembly 10.

[0029] Chamfers are made at the corners of the hemming fixed die 3, the hemming movable die 31 and a pair of hemming pressing blocks 9. The chamfer treatment can improve the quality of the hemming forming of the circuit board shielding cover.

[0030] Scale lines 11 are provided on the mold base 1. The scale lines 11 are arranged on one side of the hemming fixed die 3 and the hemming movable die 31. The scale lines 11 can be used to mark the distance between the hemming fixed die 3 and the hemming movable die 31, so as to accurately adjust the interval distance between the hemming fixed die 3 and the hemming movable die 31.

[0031] The distance adjusting structure I 4 includes a threaded seat 41 fixedly connected to the upper surface of the mold base 1, a precision lead screw I 42 threadedly connected to the threaded seat 41, a rotating head I 43 fixedly connected to the end of the precision lead screw I 42, a pair of sliding seats 44 fixedly connected to the upper surface of the mold base 1, and a smooth rod I 45 slidably connected to each sliding seat 44. One end of the precision lead screw I 42 facing away from the rotating head I 43 is rotatably connected to the hemming movable die 31, and the smooth rod I 45 is fixedly connected to the hemming movable die 31.

[0032] Specifically, by driving the precision lead screw I 42 to rotate through the rotating head I 43, and with the smooth rod I 45 providing linear guiding and sliding for the movement of the hemming movable die 31, the precision lead screw I 42 can be screwed into or out of the threaded seat 41 to adjust the distance between the hemming movable die 31 and the hemming fixed die 3, so as to meet the hemming requirements of circuit board shielding cover components of different lengths.

[0033] The distance adjusting structure II 6 includes a precision lead screw II 61 rotatably connected to the limiting plate 5, a moving plate 62 threadedly connected to the precision lead screw II 61, a rotating head II 63 fixedly connected to one end of the precision lead screw II 61, and a smooth rod II 64 slidably connected to the moving plate 62. The smooth rod II 64 is fixedly connected to the limiting plate 5.

[0034] Specifically, when the circuit board shielding cover component is placed on the hemming movable die 31 and the hemming fixed die 3 for hemming, the baffle frame 2 and the limiting plate 5 can provide abutments at two positions for the circuit board shielding cover component, so as to limit the feeding position of the circuit board shielding cover component during hemming. When hemming circuit board shielding cover components of different lengths, the rotating head II 63 can be used to drive the precision lead screw II 61 to rotate. With the smooth rod II 64 providing linear guiding and sliding for the limiting plate 5, the horizontal position of the limiting plate 5 can be adjusted to meet the requirement of abutment and limitation of the circuit board shielding cover component.

[0035] The telescopic sliding structure 8 includes a pressing plate 81 fixedly connected to the output end of the telescopic device 7 and a pair of telescopic rods 82 fixedly penetrating through the pressing plate 81. A pair of hemming blocks 9 are fixedly connected to the two ends of the pair of telescopic rods 82. In this application, the telescopic rod 82 is a double-tube telescopic structure, with one of the tubes fixed to the pressing plate 81. By setting the telescopic rod 82, the pair of hemming blocks 9 can perform relative horizontal movement, and the telescopic device 7 can drive the pair of hemming blocks 9 into the hemming movable die 31 and the hemming fixed die 3 through the pressing plate 81, so as to process two hemming operations on the circuit board shielding cover.

[0036] The guiding and sliding assembly 10 includes a sliding rod 101 fixedly connected to one end of one of the hemming blocks 9 and a plug board 102 fixedly connected to one end of the hemming movable die 31. The sliding rod 101 is slidably connected to the plug board 102. In this application, the sliding rod 101 is arranged in an L-shaped structure. When the hemming movable die 31 is adjusted in position, due to the vertical sliding insertion of the sliding rod 101 on the plug board 102, the hemming movable die 31 can drive one of the hemming blocks 9 to move horizontally through the guiding and sliding assembly 10. Under the telescopic guiding provided by the telescopic rod 82 for the pair of hemming blocks 9, the distance between one hemming block 9 and the other hemming block 9 can be adjusted to face or move away from each other, so as to meet the isotropy of the adjustment of the hemming movable die 31. In addition, because the sliding rod 101 is vertically slidably inserted into the plug board 102, during the hemming pressure application process of the hemming block 9, there is no conflict with the hemming movable die 31.

Claims

1. A folding die, comprising a die base (1) and a baffle frame (2) fixedly connected to the die base (1), characterized in that: The mold base (1) is provided with a folding fixed mold (3) and a folding movable mold (31); the folding fixed mold (3) is fixedly connected to the upper surface of the mold base (1); the mold base (1) is provided with a first distance adjustment structure (4) for driving the folding movable mold (31) to move laterally; a limiting plate (5) is provided on one side of the folding fixed mold (3); and the folding fixed mold (3) is provided with a second distance adjustment structure (6) for driving the limiting plate (5) to move laterally; A telescopic device (7) is fixedly connected to the baffle frame (2), and a telescopic sliding structure (8) is provided on the telescopic sliding structure (8), a pair of folding pressing blocks (9) are provided on the telescopic sliding structure (8), and a guide slide assembly (10) is provided on one of the folding pressing blocks (9) and the folding movable mold (31); When the movable hemming mold (31) moves laterally, the movable hemming mold (31) drives one of the hemming pressing blocks (9) to move laterally synchronously through the guide slide assembly (10); when one of the hemming pressing blocks (9) moves longitudinally, the hemming pressing block (9) is slidably connected to the movable hemming mold (31) through the guide slide assembly (10).

2. A folding die according to claim 1, characterized in that: The distance adjustment structure (4) comprises a threaded seat (41) fixedly connected to the upper surface of the mold base (1), a precision screw (42) threadedly connected to the threaded seat (41), a rotating head (43) fixedly connected to one end of the precision screw (42), a pair of sliding seats (44) fixedly connected to the upper surface of the mold base (1), and a smooth rod (45) slidably connected to each sliding seat (44), the end of the precision screw (42) facing away from the rotating head (43) is rotatably connected to the folding movable mold (31), and the smooth rod (45) is fixedly connected to the folding movable mold (31).

3. A folding die according to claim 1, characterized in that: The second distance adjustment structure (6) comprises a second precision screw (61) rotatably connected to the limit plate (5), a movable plate (62) threadedly connected to the second precision screw (61), a second rotating head (63) fixedly connected to one end of the second precision screw (61), and a second optical rod (64) slidably connected to the movable plate (62), wherein the second optical rod (64) is fixedly connected to the limit plate (5).

4. A folding die according to claim 1, characterized in that: The telescopic sliding structure (8) comprises a pressing plate (81) fixedly connected to the output end of the telescopic device (7) and a pair of telescopic rods (82) fixedly passing through the pressing plate (81); a pair of folding pressure blocks (9) are fixedly connected to the two end positions of the pair of telescopic rods (82).

5. The folding die according to claim 1, characterized in that: The slide guide assembly (10) comprises a slide rod (101) fixedly connected to one end of one of the folding pressing blocks (9) and a plug plate (102) fixedly connected to one end of the folding movable mold (31), and the slide rod (101) is slidably connected to the plug plate (102).

6. A folding die according to claim 1, characterized in that: The corners of the hemming fixed mold (3), the hemming movable mold (31) and the pair of hemming pressing blocks (9) are all chamfered.

7. A folding die according to claim 1, characterized in that: The mold base (1) is provided with a scale line (11), and the scale line (11) is arranged on one side of the hemming fixed mold (3) and the hemming movable mold (31).

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