Die for bending inclined plane of part

Abstract

The utility model discloses a mould for bending a slope of a part, which comprises a cover plate, an upper mould base, a stripper plate, a lower mould base, a concave mould plate and a fixing plate, the cover plate is arranged on the upper mould base, the upper mould base is connected with the fixing plate through a screw A, the upper mould base is connected with the stripper plate through a screw B, the lower mould base is connected with the concave mould plate through a screw C, and the concave mould plate is arranged on the cover plate. The female die plate is connected with the fixing plate through the inner guide column. According to the utility model, the functions that the upper surface of a strip material cannot be formed by adopting a side sliding block forming part bending surface with the bending angle smaller than 90 degrees, and a mold forming insert automatically avoids a bending inclined surface and does not interfere with the bending inclined surface can be realized; the strip material is automatically separated when the bending angle of the strip material of the lamp conductive part is smaller than 90 degrees, so that progressive die production replaces a traditional single-tool die production mode, and the part production efficiency and the part quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, in particular to a die used for bending inclined surfaces of parts. Background Art

[0002] The light conductor is a functional part of the lighted push button switch, see Figure 6 , 7 , and its material is tin bronze strip material. The lamp conductor is a hardware part consisting of an 85-degree bevel and a 90-degree straight surface with an outer rounded corner of R2.3. Due to the limitation of the direction of the burr surface of the part, the 85-degree bevel and the 90-degree bend vertical surface are formed by upward bending in the progressive die. After the mold is opened, the stripper plate insert cannot give way to the 85-degree bevel on the strip material and cannot be detached from the 85-degree bevel. Therefore, a single tooling is used to form the lamp conductor, namely: a blanking die and two bending dies. Due to the large production batch of lamp conductor parts, low production efficiency, poor part quality, high production cost, and the large number of models of this type of stamping hardware, a mold device with a bend bevel on the strip material is required.

[0003] The patent document with publication number CN219899754U discloses a swinging bending avoidance mechanism, which includes a base, a forming mold and a rotating shaft passing through the base and the forming mold. The forming mold is mounted on the base in a swinging manner through the rotating shaft and can be switched between an open state and a closed state through a swinging action. The forming mold is provided with a forming cavity for extruding a workpiece.

[0004] The patent document with publication number CN214516908U discloses a mold swing block bending assembly, including a swing block body and a molded part. After a pair of swing block monomers in the utility model have completed a certain bending angle, the pair of swing block monomers swing closer to each other relative to the molded part to make a slight bend toward the inside of the product to compensate for the rebound angle of the product, effectively reducing the problem of bending angle deviation caused by product rebound, and having a high yield rate.

[0005] However, the above two public documents cannot satisfy the 85-degree bend and 90-degree bend of the lamp conductive strip. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a mold for bending inclined surfaces of parts.

[0007] The utility model is realized through the following technical solutions.

[0008] The utility model provides a mold for bending inclined surfaces of parts, comprising a cover plate, an upper mold base, a discharge plate, a lower mold base, a concave mold plate and a fixed plate, wherein the cover plate is arranged on the upper mold base, the upper mold base is connected to the fixed plate by a screw A, the upper mold base is connected to the discharge plate by a screw B, the lower mold base is connected to the concave mold plate by a screw C, and the concave mold plate is connected to the fixed plate by an inner guide column.

[0009] Preferably, a slide groove A and a slide groove B are arranged on the upper mold base, a discharge column and an elastic part A are arranged in the slide groove A, an elastic part B is arranged in the slide groove B, a pin A is arranged on the upper mold base, an upper pad is arranged between the upper mold base and the fixed plate, and the pin A and the screw A pass through the upper pad and are connected to the fixed plate.

[0010] Preferably, a slide groove C is provided on the upper mold base, a distance sleeve is provided in the slide groove C, the distance sleeve passes through the upper pad and the fixed plate in sequence and is connected to the unloading plate, a slide groove D is provided on the upper pad, a push pin is provided in the slide groove D, and the elastic member B extends into the slide groove D and is connected to the push pin.

[0011] Preferably, a swing block shaft and a swing block support are provided on the unloading plate, a swing block is provided in the swing block support, and the swing block is connected to the swing block shaft.

[0012] Preferably, a height limiting plate, a slide groove E and a slide groove F are provided on the unloading plate, and the slide rod passes through the slide groove E and penetrates the unloading plate.

[0013] Preferably, a pin B and a slide groove G are provided on the lower die base, one end of the pin B is connected to the concave die plate, and a screw plug and an elastic member C are provided in the slide groove G.

[0014] Preferably, a lower pad is arranged between the lower die base and the concave die plate, the screw C passes through the lower pad and is connected to the concave die plate, a slide groove H is arranged on the lower pad, a floating nail is arranged in the slide groove H, and the floating nail passes through the concave die plate.

[0015] Preferably, a slide groove I is provided on the concave template, a slider and a guide block are provided in the slide groove I, and a screw D, a slider cover plate and a slider insert are provided on the slider.

[0016] Preferably, a slide groove J is provided on the concave template, an elastic member D is provided in the slide groove J, and one end of the guide block is connected to the elastic member D.

[0017] Preferably, a sliding rod is provided on the fixing plate, and one end of the sliding rod is wedge-shaped.

[0018] The beneficial effects of the utility model are:

[0019] The utility model can realize the forming of the bending angle of the part less than 90 degrees on the upper surface of the strip, which cannot be formed by the side slider. The mold forming insert automatically gives way to the bending inclined surface without interfering with the bending inclined surface. The lamp conductive part strip is automatically disengaged from the strip when the bending angle is less than 90 degrees to realize progressive die production instead of the traditional single tooling mold production method, thereby improving the parts production efficiency and parts quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of area A when the mold of the utility model is not closed;

[0023] Figure 4 It is a schematic diagram of area A after the mold of the utility model is closed;

[0024] Figure 5 It is a schematic diagram of area A after the 85-degree slope mold is opened for processing of the utility model;

[0025] Figure 6 It is a schematic diagram of the conductive member strip of the utility model lamp;

[0026] Figure 7 It is a schematic diagram of the conductive member strip of the utility model lamp;

[0027] In the figure: 1-cover plate, 2-pin A, 3-screw A, 4-upper pad, 5-upper die seat, 6-slide bar, 7-height limit plate, 8-inner guide column, 9-unloading plate, 10-screw D, 11-slider cover plate, 12-slider insert, 13-slider, 14-elastic part D, 15-lower pad, 16-pin B, 17-guide block, 18-lamp conductive part strip, 19-screw plug, 20-elastic part C, 21-floating pin, 22-screw C, 23-lower die seat, 24 -concave template, 25-swing block shaft, 26-swing block support, 27-swing block, 28-fixed plate, 29-distance sleeve, 30-screw B, 31-unloading column, 32-elastic part A, 33-push pin, 34-elastic part B, 101-slide A, 102-slide B, 103-slide C, 104-slide D, 105-slide E, 106-slide F, 107-slide G, 108-slide H, 109-slide I, 110-slide J. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0029] Example:

[0030] like Figures 1 to 7 As shown, a mold for bending inclined surfaces of parts includes a cover plate 1, an upper mold base 5, a stripping plate 9, a lower mold base 23, a concave mold plate 24 and a fixed plate 28, wherein the cover plate 1 is arranged on the upper mold base 5, the upper mold base 5 is connected to the fixed plate 28 by a screw A3, the upper mold base 5 is connected to the stripping plate 9 by a screw B30, the lower mold base 23 is connected to the concave mold plate 24 by a screw C22, and the concave mold plate 24 is connected to the fixed plate 28 by an inner guide column 8.

[0031] A slide groove A101 and a slide groove B102 are arranged on the upper mold base 5. A discharge column 31 and an elastic member A32 are arranged in the slide groove A101. The discharge column 31 can slide in the slide groove A101. An elastic member B34 is arranged in the slide groove B102. A pin A2 is arranged on the upper mold base 5. An upper pad 4 is arranged between the upper mold base 5 and the fixed plate 28. The pin A2 and the screw A3 penetrate through the upper pad 4 and are connected to the fixed plate 28.

[0032] The upper die seat 5 is provided with a slide groove C103, in which a distance sleeve 29 is provided, and the distance sleeve 29 passes through the upper pad 4 and the fixed plate 28 in sequence and is connected to the discharge plate 9, and the upper pad 4 is provided with a slide groove D104, in which a push pin 33 is provided, and the elastic member B34 extends into the slide groove D104 and is connected to the push pin 33. The push pin 33 can slide in the slide groove D104 and the slide groove B102.

[0033] The unloading plate 9 is provided with a swing block rotating shaft 25 and a swing block support 26 . A swing block 27 is provided in the swing block support 26 . The swing block 27 is connected to the swing block rotating shaft 25 .

[0034] The unloading plate 9 is provided with a height limiting plate 7, a slide groove E105 and a slide groove F106. The slide rod 6 passes through the unloading plate 9 through the slide groove E105. The slide groove F106 is adapted to the shape of the screw D10 and the slider cover 11. The screw D10 and the slider cover 11 can extend into the slide groove F106 and slide.

[0035] A pin B16 and a slide groove G107 are arranged on the lower mold base 23. One end of the pin B16 is connected to the concave mold plate 24. A screw plug 19 and an elastic member C20 are arranged in the slide groove G107. The screw plug 19 is used to block one end of the slide groove G107. One end of the elastic member C20 contacts the screw plug 19, and the other end of the elastic member C20 can contact the floating pin 21.

[0036] A lower pad 15 is arranged between the lower die base 23 and the concave die plate 24 , and the screw C passes through the lower pad 15 and is connected to the concave die plate 24 . A slide groove H108 is arranged on the lower pad 15 , and a floating nail 21 is arranged in the slide groove H108 . The floating nail 21 can slide in the slide groove H108 , and the floating nail 21 passes through the concave die plate 24 .

[0037] A slide groove I109 is arranged on the concave template 24, a slider 13 and a guide block 17 are arranged in the slide groove I109, a screw D10, a slider cover plate 11 and a slider insert 12 are arranged on the slider 13, one side of the slider 13 is arranged with an inclined surface, so that the slider 13 can be pushed by the wedge-shaped end of the slide rod 6, and the slider insert 12 is arranged on the side away from the inclined surface of the slider 13.

[0038] The concave template 24 is provided with a slide groove J110, an elastic member D14 is provided in the slide groove J110, and one end of the guide block 17 is connected to the elastic member D14.

[0039] The fixing plate 28 is provided with a slide bar 6 , one end of which is wedge-shaped.

[0040] The working principle of the mold is as follows: a swinging block 27 capable of swinging is installed in the stripper plate 9 in the progressive mold for the lamp conductive part, the swinging block 27 and the swinging shaft 25 are installed in the swinging block support 26, the swinging block 27 swings around the swinging shaft 25, the upper end surface of the swinging block 27 contacts the push pin 33 installed on the fixed plate 28, and the upper end of the push pin 33 is installed with an elastic member B. The position of the swinging block 25 in the mold is Figure 4The working station position for forming the 85-degree inclined surface of the lamp conductive member strip 18. The 85-degree inclined surface of the lamp conductive strip 18 has been pre-bent to 90 degrees in the upper workstation. When the mold is closed, the swing block 27 in the swing block support 26 contacts the upper surface of the lamp conductive strip 18. When the lower surface of the lamp conductive strip 18 contacts the surface of the concave template 24, the swing block 27 is pushed to rotate and swing around the swing shaft 25, so that the tip of the swing block 27 reaches the pre-bent 90-degree root position of the 85-degree inclined surface of the lamp conductive strip 18. The upper mold base 5 continues to descend. At this time, the slide bar 6 installed on the fixed plate 28 pushes the slider 13 installed in the concave template to move horizontally, driving the slider insert 12 installed on the slider 13 to push the 90-degree pre-bent surface to bend and form the 85-degree inclined surface of the lamp conductive strip 18. At this time, the outer surface of the 85-degree inclined surface of the lamp conductive strip 18 contacts the working surface of the slider insert 12, and the inner surface of the lamp conductive strip 18 contacts the forming surface of the movable swing block 27. The mold is opened under the drive of the punch press slider, and the upper mold base 5 moves upward to drive the slide rod 6 to move upward and disengage from the slider 13. The elastic member D14 installed in the slider 13 pushes the slider 13 to separate the slider insert 12 from the 85-degree bent outer surface of the lamp conductive member strip 18. At the same time, the push pin 33 installed in the fixed plate 28 pushes the swing block 27 to rotate around the swing shaft 25 under the action of the elastic member B34 to make way for the 85-degree inner inclined surface of the lamp conductive member strip 18, so that the swing block 27 is separated from the 85-degree inclined surface of the lamp conductive member strip 18, so that the swing block 27 can be separated from the strip without interference, thereby realizing the 85-degree inclined surface bending and forming of the lamp conductive member strip 18.

Claims

1. A mold for bending an inclined surface of a part, characterized in that: The invention comprises a cover plate (1), an upper die base (5), a discharge plate (9), a lower die base (23), a concave die plate (24) and a fixed plate (28), wherein the cover plate (1) is arranged on the upper die base (5), the upper die base (5) is connected to the fixed plate (28) via a screw A (3), the upper die base (5) is connected to the discharge plate (9) via a screw B (30), the lower die base (23) is connected to the concave die plate (24) via a screw C (22), and the concave die plate (24) is connected to the fixed plate (28) via an inner guide column (8).

2. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A slide groove A (101) and a slide groove B (102) are arranged on the upper die seat (5); a discharge column (31) and an elastic member A (32) are arranged in the slide groove A (101); an elastic member B (34) is arranged in the slide groove B (102); a pin A (2) is arranged on the upper die seat (5); an upper pad (4) is arranged between the upper die seat (5) and the fixed plate (28); the pin A (2) and the screw A (3) penetrate the upper pad (4) and are connected to the fixed plate (28).

3. A mold for bending an inclined surface of a part according to claim 2, characterized in that: A slide groove C (103) is arranged on the upper die seat (5), a distance sleeve (29) is arranged in the slide groove C (103), the distance sleeve (29) passes through the upper pad (4) and the fixed plate (28) in sequence and is connected to the discharge plate (9), a slide groove D (104) is arranged on the upper pad (4), a push pin (33) is arranged in the slide groove D (104), and the elastic member B (34) extends into the slide groove D (104) and is connected to the push pin (33).

4. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A swing block rotating shaft (25) and a swing block support (26) are arranged on the discharge plate (9), a swing block (27) is arranged inside the swing block support (26), and the swing block (27) is connected to the swing block rotating shaft (25).

5. A mold for bending an inclined surface of a part according to claim 1, characterized in that: The discharge plate (9) is provided with a height limiting plate (7), a slide groove E (105) and a slide groove F (106), and the slide rod (6) passes through the discharge plate (9) through the slide groove E (105).

6. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A pin B (16) and a slide groove G (107) are arranged on the lower die base (23), one end of the pin B (16) is connected to the concave die plate (24), and a screw plug (19) and an elastic member C (20) are arranged in the slide groove G (107).

7. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A lower pad (15) is arranged between the lower die seat (23) and the concave die plate (24); the screw C passes through the lower pad (15) and is connected to the concave die plate (24); a slide groove H (108) is arranged on the lower pad (15); a floating nail (21) is arranged in the slide groove H (108); and the floating nail (21) passes through the concave die plate (24).

8. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A slide groove I (109) is arranged on the concave template (24), a slider (13) and a guide block (17) are arranged in the slide groove I (109), and a screw D (10), a slider cover plate (11) and a slider insert (12) are arranged on the slider (13).

9. A mold for bending an inclined surface of a part according to claim 8, characterized in that: A slide groove J (110) is arranged on the concave template (24), an elastic member D (14) is arranged in the slide groove J (110), and one end of the guide block (17) is connected to the elastic member D (14).

10. A mold for bending an inclined surface of a part according to claim 1, characterized in that: A sliding rod (6) is arranged on the fixing plate (28), and one end of the sliding rod (6) is wedge-shaped.

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