Cold extrusion forming stamping die

Abstract

The utility model provides a cold extrusion forming stamping die. The cold extrusion forming stamping die comprises an upper die and a lower die, the upper die comprises an upper die base, the upper end face of the upper die base is connected with a die handle, and the lower end face is sequentially connected with an upper base plate and a fixing plate. A limiting column and a guide column are arranged on the two sides of the fixing plate respectively, a first forming male die is arranged in the middle of the fixing plate, and a second forming male die is arranged in the first forming male die. Screws and upper push nails are arranged between the first forming male die and the limiting column and between the first forming male die and the guide column, and the screws are sleeved with springs. The lower die comprises a lower die base, the lower end face of the lower die base is connected with a plurality of elastic jacking base plates through screws, and elastic rubber is arranged between the elastic jacking base plates. The upper end face of the lower die base is sequentially connected with a lower base plate, a lower lining plate and a female die plate through a plurality of lower push nails, and a female die forming insert is arranged in the female die plate. A forming push block is arranged in the female die forming insert, and the top of the forming push block is connected with the lower die base through a plurality of push block push nails. The device can improve the qualified rate and the production efficiency of parts, and ensures the stability of the sizes of the parts.

Description

Technical Field

[0001] The utility model relates to a cold extrusion forming stamping die, belonging to the technical field of stamping dies. Background Art

[0002] The 022 shell is a functional part on a switch. It is made of aluminum plate. The 022 shell needs to be cold extruded into a special-shaped state with a wall thickness of 0.5. The conventional cold extrusion forming method not only increases the number of molds and labor costs, but also cannot guarantee dimensional stability and consistency, resulting in difficulties in switch assembly and affecting its use function, low production efficiency and high parts cost. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a cold extrusion stamping die, which can meet the cold extrusion forming size requirements of stamping parts, ensure the quality and pass rate of parts, and expand the processing method and stamping die structure of cold extrusion forming of stamping parts.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a cold extrusion stamping die, comprising an upper die and a lower die; the upper die comprises an upper die seat, the upper end face of the upper die seat is connected to the die handle, and the lower end face is sequentially connected to an upper pad and a fixed plate; limit columns and guide columns are respectively provided on both sides of the fixed plate, a first forming punch is provided in the middle of the fixed plate, and a second forming punch is provided in the first forming punch; screws and upper push pins are provided between the first forming punch and the limit columns, and between the first forming punch and the guide columns, and a spring is sleeved on the screw; the lower die comprises a lower die seat, the lower end face of the lower die seat is connected to a plurality of spring-lifting pads through a screw, and elastic rubber is provided between the spring-lifting pads; the upper end face of the lower die seat is sequentially connected to a lower pad, a lower lining plate, and a concave mold plate through a plurality of lower push pins, and a concave mold forming insert is provided in the concave mold plate; a forming push block is provided in the concave mold forming insert, and the top of the forming push block is connected to the lower die seat through a plurality of push block push pins.

[0006] The end surface of the female die forming insert is provided with a positioning groove.

[0007] The screw between the first forming convex die and the limiting column is adjacent to the limiting column, and the screw between the first forming convex die and the guide column is adjacent to the guide column.

[0008] The spring-loaded lifting pad has two parts, which are divided into an upper spring-loaded lifting pad and a lower spring-loaded lifting pad, and an elastic rubber is arranged between the upper spring-loaded lifting pad and the lower spring-loaded lifting pad.

[0009] A nut connected with a screw rod is provided at the bottom of the downward spring-lifting pad.

[0010] A floating plate is sleeved on the limiting column, the screw, the upper push pin, the first forming punch and the guide column.

[0011] The beneficial effects of the utility model are that the qualified rate of parts and production efficiency can be improved, and the stability of part dimensions can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the product picture of the cold extruded 022 shell;

[0013] Figure 2 yes Figure 1 Side view of

[0014] Figure 3 yes Figure 1 A top view of

[0015] Figure 4 It is a structural schematic diagram of the utility model;

[0016] Figure 5 yes Figure 4 An assembly drawing of the first forming punch and the second forming punch;

[0017] In the figure: 1-die handle, 2-upper die seat, 3-upper pad, 4-limiting column, 5-fixed plate, 6-first forming punch, 7-second forming punch, 8-floating plate, 9-screw, 10-spring, 11-upper push pin, 12-guide column, 13-die forming insert, 14-forming push block, 15-die plate, 16-lower lining plate, 17-lower pad, 18-lower push pin, 19-push block push pin, 20-lower die seat, 21-elastic lifting pad, 22-elastic rubber, 23-nut, 24-screw. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0019] like Figure 4 and 5As shown, a cold extrusion stamping die comprises an upper die and a lower die; the upper die comprises an upper die seat 2, the upper end surface of the upper die seat 2 is connected to a die handle 1, and the lower end surface is sequentially connected to an upper pad 3 and a fixed plate 5; both sides of the fixed plate 5 are provided with a limit column 4 and a guide column 12, a first forming punch 6 is provided in the middle of the fixed plate 5, and a second forming punch 7 is provided in the first forming punch 6; screws 9 and upper push pins 11 are provided between the first forming punch 6 and the limit column 4, and between the first forming punch 6 and the guide column 12, and a screw 9 is sleeved on the screw 9. A spring 10 is connected; the lower die includes a lower die base 20, the lower end surface of the lower die base 20 is connected to a plurality of spring-lifting pads 21 through a screw 24, and an elastic rubber 22 is provided between the spring-lifting pads 21; the upper end surface of the lower die base 20 is connected to a lower pad 17, a lower lining plate 16, and a concave mold plate 15 in sequence through a plurality of lower push pins 18, and a concave mold forming insert 13 is provided in the concave mold plate 15; a forming push block 14 is provided in the concave mold forming insert 13, and the top of the forming push block 14 is connected to the lower die base 20 through a plurality of push block push pins 19.

[0020] The end surface of the female die forming insert 13 is provided with a positioning groove.

[0021] The screw 9 between the first forming punch 6 and the limiting column 4 is adjacent to the limiting column 4 , and the screw 9 between the first forming punch 6 and the guide column 12 is adjacent to the guide column 12 .

[0022] The spring-loaded lifting pad 21 has two parts, namely an upper spring-loaded lifting pad and a lower spring-loaded lifting pad, and the elastic rubber 22 is arranged between the upper spring-loaded lifting pad and the lower spring-loaded lifting pad.

[0023] A nut 23 connected to a screw rod 24 is provided at the bottom of the downward spring-lifting pad.

[0024] The limit column 4 , the screw 9 , the upper push pin 11 , the first forming punch 6 , and the guide column 12 are sleeved with a floating plate 8 .

[0025] The working principle of the utility model is:

[0026] 1. The operator uses tweezers to place the part flat in the positioning groove of the concave mold forming insert 13 of the lower mold, and performs shape positioning through the positioning groove;

[0027] Second, step on the pedal on the press, the upper die moves downward, the first forming punch 6 fixed in the fixed plate 5, the second forming punch 7 fixed in the first forming punch 6, and the limit column 4, the guide column 12 and the upper push pin 11 fixed in the fixed plate 5 move downward, first the guide column 12 enters the concave plate 15 for guidance, then the upper push pin 11 contacts the lower push pin 18, and the lower push pin 18 moves downward under the action of the press, and at the same time the first forming punch 6 and the second forming punch 7 contact the parts;

[0028] 3. The upper die continues to move downward, and the first forming punch 6, the second forming punch 7, the limit column 4, the upper push pin 11 and the guide column 12 continue to move downward under the action of the press, and at the same time, the lower push pin 18 acts downward on the spring washer pad 21, and the spring washer pad 21 compresses the elastic rubber 22, and at this time, the forming push block 14 moves downward;

[0029] Fourth, the upper die continues to move downward, and when the limiting column 4 contacts and limits the position of the concave die plate 15, the spring 10 is compressed under the action of the force, and at the same time, the first forming punch 6, the second forming punch 7, the concave die forming insert 13 and the forming push block 14 are cold extruded under the action of the force;

[0030] 5. After the upper die moves upward, the spring 10 returns to its original state, the spring-lifting pad 20 and the lower push pin 18 of the lower die move upward under the action of the elastic rubber 21, the push block push pin 19 moves upward under the action of the spring pad 21, and the forming push block 14 moves upward under the action of the push block push pin 19. The forming push block 14 pushes the formed 022 shell out of the female die forming insert 13, and the operator removes the cold-extruded 022 shell from the female die forming insert 13 with tweezers. The structure of the 022 shell is as shown in FIG. Figures 1 to 3 shown.

[0031] In summary, the utility model meets the forming state and size requirements of the 022 shell through cold extrusion, prolongs the service life of the 022 shell, and improves the qualified efficiency and production efficiency.

Claims

1. A cold extrusion stamping die, comprising an upper die and a lower die, characterized in that: The upper die comprises an upper die seat (2), the upper end surface of the upper die seat (2) is connected to a die handle (1), and the lower end surface is sequentially connected to an upper pad (3) and a fixed plate (5); a limiting column (4) and a guide column (12) are respectively provided on both sides of the fixed plate (5); a first forming punch (6) is provided in the middle of the fixed plate (5), and a second forming punch (7) is provided inside the first forming punch (6); screws (9) and upper push pins (11) are provided between the first forming punch (6) and the limiting column (4), and between the first forming punch (6) and the guide column (12), and a spring (10) is sleeved on the screw (9); The lower die comprises a lower die seat (20), the lower end surface of the lower die seat (20) is connected to a plurality of spring-lift pads (21) via a screw rod (24), and an elastic rubber (22) is arranged between the spring-lift pads (21); the upper end surface of the lower die seat (20) is connected to a lower pad (17), a lower lining plate (16), and a concave mold plate (15) in sequence via a plurality of lower push pins (18), and a concave mold forming insert (13) is arranged in the concave mold plate (15); a forming push block (14) is arranged in the concave mold forming insert (13), and the top of the forming push block (14) is connected to the lower die seat (20) via a plurality of push block push pins (19).

2. The cold extrusion stamping die according to claim 1, characterized in that: The end surface of the female die forming insert (13) is provided with a positioning groove.

3. The cold extrusion stamping die according to claim 1, characterized in that: The screw (9) between the first forming convex die (6) and the limiting column (4) is adjacent to the limiting column (4), and the screw (9) between the first forming convex die (6) and the guide column (12) is adjacent to the guide column (12).

4. The cold extrusion stamping die according to claim 1, characterized in that: The spring-loaded lifting pad (21) has two parts, namely an upper spring-loaded lifting pad and a lower spring-loaded lifting pad, and an elastic rubber (22) is arranged between the upper spring-loaded lifting pad and the lower spring-loaded lifting pad.

5. The cold extrusion stamping die according to claim 4, characterized in that: A nut (23) connected to a screw rod (24) is provided at the bottom of the downward spring-lifting pad.

6. The cold extrusion stamping die according to claim 1, characterized in that: A floating plate (8) is sleeved on the limiting column (4), the screw (9), the upper push pin (11), the first forming punch (6) and the guide column (12).

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