One-time cutting and edge rolling compound die for hinge

Abstract

A one-time cutting and edge rolling compound die for a hinge comprises a base, a supporting table, a lower die and an edge rolling flat pushing block are sequentially installed on the base from left to right, and a left side cutting tool, a punching die, a pressing block, an upper edge rolling pressing die, a right side cutting block and a pressing plate are sequentially installed on an upper pressing block from left to right. During working, a plate for manufacturing a hinge is fed from left to right, the upper pressing block moves downwards, the pressing block presses the plate, the right side cutting block cuts off and forms the right side of the plate, the upper edge rolling pressing die moves downwards and is matched with the lower die cavity to primarily form the plate, at the moment, the edge rolling flat pushing block moves leftwards, and the flat pushing die head is matched with the second edge rolling part to machine and form the right side of glass into a circle; cutting off the left side after punching. According to the device, material taking forming, edge rolling, punching and cutting-off are completed in the one-time punching process through the compound die, the punching precision is high, the product universality is good, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a hinge one-time cutting and rolling composite die. Background Art

[0002] As people's living standards improve, the demand for cars increases. In order to pursue higher profits, auto parts manufacturers are adopting stamping to form parts. Hinges are used in many places on cars, such as doors, hoods, trunks, etc. Due to different usage environments, standard hinges are almost unusable and need to be customized by auto parts manufacturers. The hinge production of existing companies requires several stamping procedures, and the positioning accuracy of the product is not high, which makes it difficult to control the dimensional tolerance and form and position tolerance of the product, and the production efficiency is low. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the present invention provides a hinge one-time cutting and rolling composite die.

[0004] To achieve the above-mentioned purpose, the present invention provides a hinge one-time cutting and curling composite die, including a base, on which a support, a lower die, a curling push block, and an upper pressing block are installed in sequence from left to right, and on the upper pressing block, a left-side cutting knife, a punching die, a pressing block, an upper curling pressing die, a right-side cutting block, and a pressing plate are installed in sequence from left to right; the position of the left-side cutting knife matches the support, the punching die corresponds to the punching lower die on the lower die, the pressing block presses the sheet material for making the hinge on the lower die for positioning, the upper curling pressing die matches the lower die cavity at the lower die, the right-side cutting block is located on the right side of the lower die, and forms a cutting structure with the right side surface of the lower die, and the pressing plate matches the curling push block.

[0005] As a further improvement of the present invention, the bottom of the punching lower die is connected to a waste channel.

[0006] As a further improvement of the present invention, the rolling push block includes a slide rail connected to the base, a return spring is installed in the slide rail, a push die is installed on the left side of the rolling push block, the leftmost side of the push die is the push die head, and the upper right side of the rolling push block is processed with a rolling push block inclined surface.

[0007] As a further improvement of the present invention, a first curved portion and a second curved portion are processed at the lower mold cavity.

[0008] As a further improvement of the present invention, a pressing plate inclined surface is processed on the lower left side of the pressing plate, and the pressing plate inclined surface matches the inclined surface of the rolling flat push block.

[0009] As a further improvement of the present invention, the right cutting block includes a channel processed in the middle, and the channel is used for the push die to move leftward. The bottom of the right cutting block is a toothed blade, and the shape of the toothed blade matches the tooth shape of the hinge.

[0010] As a further improvement of the present invention, the upper surface of the upper curling die is connected to the upper pressing block through an upper curling die gas spring, and the lower part of the upper curling die is processed with a first curling portion and a second curling portion.

[0011] As a further improvement of the present invention, the upper part of the pressing block is connected to the upper pressing plate through a pressing block gas spring.

[0012] As a further improvement of the present invention, the bottom of the support platform is connected to the base via a support platform gas spring.

[0013] The beneficial effects of the present invention are:

[0014] The device uses the lower part of the upper curling die to process the first curling part and the second curling part. The first curling part and the first bending part work together to bend the sheet into an arc shape. The second curling part acts as a curling fixed die and works together with the flat push die head to curl the sheet. The composite die completes the material forming, curling, punching, and cutting in one stamping process. The stamping precision is high, the product has good versatility, and the production efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a hinge one-time cutting and rolling compound die of the present invention;

[0016] Figure 2 It is a working schematic diagram of a hinge one-time cutting and rolling compound die of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is the parts diagram of the hinge;

[0019] Figure 5 It is an expanded view of the hinge rolled end 122.

[0020] In the figure: 1, base; 2, rolling flat push block; 21, slide rail; 22, return spring; 23, flat push die; 231, flat push die head; 24, rolling flat push block inclined surface; 3, lower die; 31, lower die cavity; 311, first curved portion; 312, second curved portion; 4, pressure plate; 41, pressure plate inclined surface; 5, upper pressure block; 6, right cutting block; 61, channel; 62, toothed blade; 7, upper rolling die; 71, upper rolling die gas spring; 72, second rolling portion; 73, first rolling portion; 8, pressure block; 81, pressure block gas spring; 9, punching die; 10, left cutting knife; 11, support platform; 111, support platform gas spring; 12, hinge; 121, through hole; 122, hinge rolling end; 1221, tooth; 13, punching lower die; 14, waste channel. DETAILED DESCRIPTION

[0021] like Figure 1-3 As shown, a hinge one-time cutting and rolling compound die of the present invention comprises a base 1, on which a support 11 is installed from left to right in sequence, the lower side of the support 11 is connected to the base 1 through a support gas spring 111, a lower die 3, a rolling flat push block 2, the rolling flat push block 2 comprises a slide rail 21 connected to the base 1, a return spring 22 is installed in the slide rail 21, a flat push die 23 is installed on the left side of the rolling flat push block 2, the leftmost side of the flat push die 23 is a flat push die head 231, the upper right side of the rolling flat push block 2 is processed with a rolling flat push block inclined surface 24, an upper pressing block 5, on which a left cutting knife 10, a punching die 9, and a pressing block 8 are installed in sequence from left to right, the upper part of the pressing block 8 is connected to the upper pressing plate 5 and an upper rolling die 7 through a pressing block gas spring 81, the upper part of the upper rolling die 7 is connected to the upper pressing block 5 through an upper rolling die gas spring 71, and the lower part of the upper rolling die 7 is processed with a first rolling portion 73 and a second rolling portion 72 , the right side cutting block 6, the right side cutting block 6 includes a channel 61 processed in the middle, the channel 61 is for the flat push die 23 to move to the left, the bottom of the right side cutting block 6 is a toothed blade 62, the shape of the toothed blade 62 matches the shape of the tooth 1221 of the hinge 12, the pressing plate 4, the left lower part of the pressing plate 4 is processed with a pressing plate inclined surface 41, and the pressing plate inclined surface 41 matches the rolling flat push block inclined surface 24; the position of the left cutting knife 10 matches the support 11, and the punching die 9 matches the lower die 3 corresponds to the punching lower die 13 on the lower die 3, the pressing block 8 presses the sheet material for making the hinge 12 on the lower die 3 for positioning, the upper curling pressing die 7 matches the lower die cavity 31 at the lower die 3, the first curved portion 311 and the second curved portion 312 are processed at the lower die cavity 31, the bottom of the punching lower die 13 is connected to the waste channel 14, the right cutting block 6 is located on the right side of the lower die 3, and forms a cutting structure with the right side surface of the lower die 3, and the pressing plate 4 matches the curling push block 2.

[0022] The device uses the lower part of the upper curling die to process the first curling part and the second curling part. The first curling part and the first bending part work together to bend the sheet into an arc shape. The second curling part acts as a curling fixed die and works together with the flat push die head to curl the sheet. The composite die completes the material forming, curling, punching, and cutting in one stamping process. The stamping precision is high, the product has good versatility, and the production efficiency is greatly improved.

[0023] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0024] like Figure 4 , 5 The above is a diagram of the parts of the hinge and an expanded diagram of the hinge curled end 122. The plate material is processed into a hinge component at one time by the device of the present invention.

[0025] During operation, the sheet material for making the hinge is fed from left to right. The rightmost side of the sheet material exceeds the right side of the lower die. The upper pressing block moves downward to press the sheet material. The right cutting block cuts the right side of the sheet material into shape (see Figure 5), the upper pressing block continues to move downward, the pressing block gas spring is compressed, the upper rolling die moves downward, the first rolling part and the first bending part act to bend the sheet into an arc, the upper pressing block moves downward again, the pressing block gas spring continues to be compressed, and at the same time the upper rolling die gas spring is compressed, the pressing plate inclined surface contacts the rolling flat push block inclined surface, the flat push die moves to the left through the channel, and the flat push die head and the second rolling part act to roll the right side of the sheet (the hinge rolling end 122 is processed, see Figure 3 ), and the sheet metal is bent at the second bending part under the action of its own rebound force (see Figure 3 ), the upper pressing block goes down again, the pressing block gas spring continues to compress, and at the same time, the upper rolling die gas spring continues to compress, and the punching die and the punching lower die work together to complete the processing of the through hole 121, and then the upper pressing block goes down, and the sheet material on the left side is cut off along the left side below, and at the same time, the support gas spring under the support shrinks, and the processing process ends. The upper pressing block goes up, and each component is reset.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hinge one-time cutting and rolling compound die, characterized in that: The invention comprises a base (1), on which a support platform (11), a lower die (3), a rolling flat push block (2), and an upper pressing block (5) are sequentially installed from left to right. On the upper pressing block (5), a left-side cutting knife (10), a punching die (9), a pressing block (8), an upper rolling pressing die (7), a right-side cutting block (6), and a pressing plate (4) are sequentially installed from left to right. The position of the left cutting knife (10) matches the support (11), the punching die (9) corresponds to the punching lower die (13) on the lower die (3), the pressing block (8) presses the sheet material for making the hinge (12) onto the lower die (3) for positioning, the upper curling die (7) matches the lower die cavity (31) at the lower die (3), the right cutting block (6) is located on the right side of the lower die (3) and forms a cutting structure with the right side surface of the lower die (3), and the pressing plate (4) matches the curling push block (2).

2. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The bottom of the punching lower die (13) is connected to a waste channel (14).

3. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The rolling push block (2) comprises a slide rail (21) connected to the base (1), a return spring (22) is installed in the slide rail (21), a push die (23) is installed on the left side of the rolling push block (2), the leftmost side of the push die (23) is a push die head (231), and a rolling push block inclined surface (24) is processed on the upper right side of the rolling push block (2).

4. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: A first curved portion (311) and a second curved portion (312) are processed at the lower mold cavity (31).

5. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: A pressing plate inclined surface (41) is processed on the lower left side of the pressing plate (4), and the pressing plate inclined surface (41) matches the inclined surface (24) of the rolling flat push block.

6. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The right cutting block (6) includes a channel (61) processed in the middle, and the channel (61) allows the push die (23) to move to the left. The bottom of the right cutting block (6) is a toothed blade (62), and the shape of the toothed blade (62) matches the shape of the teeth (1221) of the hinge (12).

7. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The upper surface of the upper rolling die (7) is connected to the upper pressing block (5) via an upper rolling die gas spring (71), and the lower part of the upper rolling die (7) is processed with a first rolling portion (73) and a second rolling portion (72).

8. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The upper part of the pressing block (8) is connected to the upper pressing plate (5) via a pressing block gas spring (81).

9. The hinge one-time cutting and rolling compound die according to claim 1, characterized in that: The bottom of the support platform (11) is connected to the base (1) via a support platform gas spring (111).

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