Hole flanging die material returning interaction mechanism

Abstract

The utility model relates to the technical field of hole flanging dies, in particular to a hole flanging die material returning interaction mechanism which comprises an upper die base and a lower die base, the inner side of the upper die base is connected with a punch mechanism in a sliding mode, and an abutting piece driving the punch mechanism to move transversely is arranged in the lower die base. Wherein the upper die holder and the lower die holder are arranged on the upper die holder, the punch mechanism is arranged on the lower die holder, an interactive insert is further arranged on the inner side of the lower die holder and matched with the punch mechanism, and the interactive structure design is adopted, so that when the upper die holder and the lower die holder are closed, an abutting piece on the lower die holder abuts against the punch mechanism to transversely move; and meanwhile, when abutting against the plate, the punch mechanism can abut against the movable insert to move downwards and make contact with the hole flanging insert to be closed, in this way, a completed punched hole is formed to be matched with the punch, flanging operation on the plate is achieved, the whole action is controlled and interacted through the die assembly action of the upper die base and the lower die base, the action consistency can be effectively improved, and the production efficiency is improved. And then the stability of punching and flanging of the plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole-turning dies, in particular to a material-returning interactive mechanism for a hole-turning die. Background Art

[0002] A punch is a metalworking tool that is used to make holes in metal sheets. It usually consists of two main parts: a punch, which is the protruding part and is usually located above the metal sheet. When the punch applies downward pressure, it will penetrate the metal sheet to form a hole, while the die is the concave part and is located below the metal sheet. When the punch passes through the metal, the die plays a role in supporting and guiding the flow of metal to ensure the shape and size of the hole is accurate.

[0003] At present, the stamping process of automobile parts has hole flanging, which is often completed by an inclined wedge mechanism. For example, the hole flanging mechanism and hole flanging process of the automobile cover stamping die disclosed in Chinese patent announcement number "CN110560537B" include an upper die forming block, a pressing core, a hole flanging convex head, a side-flanging mechanism, a driving guide plate and a lower die driving seat, and the upper die forming block and the pressing core are separately arranged.

[0004] Since the existing lower die driving seat mostly adopts a single fixed structure, after the punch punches the plate, the fixed lower die driving seat cannot lift the sheet, which makes it difficult to remove the material later. Based on this, in order to further optimize the applicability of the existing hole-flanging die, we propose a hole-flanging die material return interactive mechanism. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that the sheet material cannot be lifted, thus causing difficulty in subsequent material removal, and proposes an interactive mechanism for withdrawing material from a hole-turning die.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hole punching die material-returning interactive mechanism is designed, comprising an upper die seat and a lower die seat, a punch mechanism is slidably connected to the inner side of the upper die seat, and a resisting member for driving the punch mechanism to move laterally is arranged inside the lower die seat;

[0008] Among them, an interactive insert is also arranged on the inner side of the lower die seat, and the interactive insert cooperates with the punch mechanism to be used for punching holes in the sheet material.

[0009] Furthermore, the punch mechanism includes a mounting seat fixed on the inner side of the upper die seat, a sliding seat below the mounting seat, a fixing seat fixed to the bottom of the sliding seat, and a punch installed at the bottom of the fixing seat.

[0010] Further, sliding grooves are formed on both sides of the sliding seat, and two L-shaped guide frames are fixed to the bottom of the mounting seat. The ends of the L-shaped guide frames are slidably disposed in the sliding grooves.

[0011] Further, the abutting member is a wedge-shaped block fixed to the lower die base. A guiding inclined surface is formed on the lower side of the sliding seat, and the guiding inclined surface abuts against the inclined surface of the wedge-shaped block.

[0012] Further, guiding blocks are fixedly installed on both sides of the wedge-shaped block, and an L-shaped claw is fixedly installed on the side of the sliding seat. The L-shaped claw is clamped outside the guiding block.

[0013] Further, the interactive insert block includes a flanging insert block and a limiting insert block fixed in the lower die base. A first inclined surface is formed on the side surface of the limiting insert block, a dovetail groove is formed on the first inclined surface, a moving insert block is slidably connected in the dovetail groove through a dovetail block, and a second inclined surface adapted to the first inclined surface is formed on the side of the moving insert block. Wherein, third inclined surfaces which are matched with each other are formed on the opposite surfaces of the moving insert block and the flanging insert block, semi-circular holes are formed on the third inclined surfaces, and the two semi-circular holes form a punching hole.

[0014] Further, a spring telescopic rod is fixedly installed inside the lower die base, and the telescopic top end of the spring telescopic rod abuts against the bottom of the moving insert block.

[0015] The beneficial effect of a flanging die stripping interactive mechanism proposed by the present utility model is as follows: in the present utility model, through an interactive structure design, when the upper die base and the lower die base are clamped, the abutting member on the lower die base abuts against the punch mechanism to perform lateral movement. At the same time, when the punch mechanism abuts against the plate, it will also abut against the moving insert block to move downward and contact and close with the flanging insert block, so as to form a complete punching hole to cooperate with the punch and realize the flanging operation on the plate. The overall action is controlled interactively by the clamping action of the upper die base and the lower die base, which can effectively improve the consistency of the action, and then improve the stability of punching and flanging the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a sectional view of the present utility model;

[0018] Figure 3 is a schematic structural view of the interactive insert block of the present utility model;

[0019] Figure 4 is a schematic structural view of the abutting member of the present utility model.

[0020] In the figure: 1. Upper die base; 2. Lower die base; 21. Spring telescopic rod; 3. Punch mechanism; 31. Mounting seat; 32. Slide seat; 321. Guiding inclined surface; 33. Fixed seat; 34. Punch; 35. L-shaped claw; 4. Contact part; 41. Guiding block; 5. Interactive insert; 51. Flanging insert; 511. Third inclined surface; 512. Semi-circular hole; 52. Limit insert; 521. First inclined surface; 53. Moving insert; 531. Second inclined surface. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Referring to Figures 1-4 For an embodiment of the present invention, it discloses a flanging die unloading interaction mechanism. The flanging die includes an upper die base 1 and a lower die base 2. Specifically, a punch mechanism 3 is slidably connected inside the upper die base 1, and a contact part 4 for driving the punch mechanism 3 to move horizontally is arranged inside the lower die base 2;

[0023] Among them, an interactive insert 5 is further arranged inside the lower die base 2. The interactive insert 5 cooperates with the punch mechanism 3 to perform flanging on the sheet material.

[0024] In some embodiments, in the present invention, the punch mechanism 3 includes a mounting seat 31 fixed inside the upper die base 1. A slide seat 32 is arranged below the mounting seat 31. A fixed seat 33 is fixed at the bottom of the slide seat 32. A punch 34 is installed at the bottom of the fixed seat 33. Among them, the fixed seat 33 is inclined, that is, the punch 34 is inclined below the slide seat 32. Further, in this embodiment, a gasket is also arranged between the fixed seat 33 and the slide seat 32.

[0025] On the basis of the above embodiment, in this embodiment, chutes are opened on both sides of the slide seat 32. Two L-shaped guide frames are fixed at the bottom of the mounting seat 31. The ends of the L-shaped guide frames slide in the chutes. That is, in this embodiment, by using the sliding cooperation of two L-shaped guide frames and two chutes, the sliding direction of the slide seat 32 is guided.

[0026] Furthermore, in this embodiment, the abutment 4 is a wedge block fixed on the lower die base 2, and a guiding bevel 321 is provided on the lower side of the slide 32, and the guiding bevel 321 abuts against the bevel of the wedge block, that is, when the upper die base 1 and the lower die base 2 are closed, the guiding bevel 321 on the slide 32 abuts against the bevel of the abutment 4, so as to drive the entire slide 32 to move laterally during the descent, thereby completing the downward movement and hole turning operation of the punch 34.

[0027] Furthermore, in order to further improve the contact stability between the wedge block and the slide 32, in this embodiment, guide blocks 41 are fixedly installed on both sides of the wedge block, and L-shaped claws 35 are fixedly installed on the sides of the slide 32. The L-shaped claws 35 are clamped on the outer side of the guide blocks 41. The design of the L-shaped claws 35 cooperating with the guide blocks 41 can further improve the contact sliding stability between the wedge block and the slide 32, thereby improving the stability of the hole turning operation.

[0028] In some embodiments, the interactive insert 5 includes a hole-turning insert 51 and a limiting insert 52 fixed in the lower mold base 2, the side of the limiting insert 52 is provided with a first inclined surface 521, the first inclined surface 521 is provided with a dovetail groove, and a movable insert 53 is slidably connected in the dovetail groove through a dovetail block, and the side of the movable insert 53 has a second inclined surface 531 adapted to the first inclined surface 521, wherein the movable insert 53 and the hole-turning insert 51 are both formed with a third inclined surface 511 that matches each other on the opposite surfaces, and a semicircular hole 512 is provided on the third inclined surface 511, and the two semicircular holes 512 constitute a punching hole.

[0029] Specifically, when the mold is closed, the punch 34 moves downward against the punching position of the plate until it falls into the punching hole. During this process, the movable insert 53 moves downward, and with the cooperation of the first inclined surface 521 and the second inclined surface 531, the side of the movable insert 53 contacts the side of the punching insert 51, so that the punch 34 can be ensured to penetrate into the complete punching hole to realize the punching operation on the plate.

[0030] In addition, based on the above embodiment, in this embodiment, a spring telescopic rod 21 is fixedly installed on the inner side of the lower mold base 2, and the telescopic top end of the spring telescopic rod 21 is in contact with the bottom of the movable insert 53. The spring telescopic rod 21 is designed to drive and reset the movable insert 53. When the movable insert 53 is reset, the plate can be lifted upward to facilitate material removal.

[0031] In summary, in the present utility model, through the adoption of an interactive structure design, when the upper die base 1 and the lower die base 2 are closed, the abutting member 4 on the lower die base 2 abuts against the punch mechanism 3 for lateral movement. At the same time, when the punch mechanism 3 abuts against the sheet material, it will also abut against the movable insert 53 to move downward and contact and close with the flanging insert 51, thus forming a complete punching hole to cooperate with the punch 34 to realize the flanging operation of the sheet material. The overall movement is controlled interactively by the closing movement of the upper die base 1 and the lower die base 2, which can effectively improve the consistency of the movement, and then improve the stability of punching and flanging the sheet material.

[0032] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A hole-turning die material-returning interactive mechanism, comprising an upper die base (1) and a lower die base (2), characterized in that: A punch mechanism (3) is slidably connected to the inner side of the upper die base (1), and a resisting member (4) for driving the punch mechanism (3) to move laterally is arranged inside the lower die base (2); An interactive insert (5) is also provided on the inner side of the lower die base (2), and the interactive insert (5) cooperates with the punch mechanism (3) to perform hole punching on the sheet material.

2. The interactive mechanism for withdrawing material from a hole-burdening die according to claim 1, characterized in that: The punch mechanism (3) comprises a mounting seat (31) fixed on the inner side of the upper die seat (1), a sliding seat (32) below the mounting seat (31), a fixing seat (33) fixed at the bottom of the sliding seat (32), and a punch (34) installed at the bottom of the fixing seat (33).

3. The interactive mechanism for withdrawing material from a hole-burring die according to claim 2, characterized in that: Slide grooves are provided on both sides of the slide seat (32), and two L-shaped guide frames are fixed to the bottom of the mounting seat (31), and the ends of the L-shaped guide frames slide in the slide grooves.

4. The interactive mechanism for withdrawing material from a punching die according to claim 2, characterized in that: The abutment member (4) is a wedge block fixed on the lower die seat (2), and a guiding inclined surface (321) is provided on the lower side of the slide seat (32), and the guiding inclined surface (321) abuts against the inclined surface of the wedge block.

5. The interactive mechanism for withdrawing material from a punching die according to claim 4, characterized in that: Guide blocks (41) are fixedly installed on both sides of the wedge block, and L-shaped claws (35) are fixedly installed on the side of the slide seat (32), and the L-shaped claws (35) are clamped on the outer sides of the guide blocks (41).

6. The interactive mechanism for withdrawing material from a hole-burring die according to claim 1, characterized in that: The interactive insert (5) comprises a hole-turning insert (51) and a limiting insert (52) fixed in the lower die base (2); a first inclined surface (521) is provided on the side of the limiting insert (52); a dovetail groove is provided on the first inclined surface (521); a movable insert (53) is slidably connected in the dovetail groove via a dovetail block; a side edge of the movable insert (53) has a second inclined surface (531) adapted to the first inclined surface (521); wherein third inclined surfaces (511) that match each other are formed on the opposite surfaces of the movable insert (53) and the hole-turning insert (51); a semicircular hole (512) is provided on the third inclined surface (511); and two semicircular holes (512) constitute a punching hole.

7. The interactive mechanism for withdrawing material from a punching die according to claim 6, characterized in that: A spring telescopic rod (21) is also fixedly mounted on the inner side of the lower die base (2), and the telescopic top end of the spring telescopic rod (21) abuts against the bottom of the movable insert (53).

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