CN219112643U - Needle punching die capable of achieving accurate positioning - Google Patents

Abstract

The utility model discloses a needle punching die capable of accurately positioning, which comprises an upper die block arranged at the bottom of an upper die leg at the bottom of an upper bottom plate and a lower die block arranged at the top of a lower die leg at the top of a lower bottom plate; the upper module and the lower module are arranged oppositely; the bottom of the upper module is provided with a guide positioning block; the lower module is provided with a positioning notch corresponding to the guide positioning block; a positioning structure is arranged in the positioning notch; the upper module and the lower module move relatively, the guide positioning block is embedded into the positioning notch to push the positioning structure, and the abutting end of the positioning structure is contacted with a material plate in a groove at the top of the lower module and limited to the material plate; and a punching needle on the upper module punches the material plate. The utility model provides a punching needle mould capable of accurately positioning, which is characterized in that a positioning structure is pushed by a guide positioning block to be abutted against the periphery of a material plate, so that the material plate is limited at the punching position of a punching needle, and the punching needle can punch a hole at the accurate position on the material plate.

Description

Needle punching die capable of achieving accurate positioning

Technical Field

The utility model relates to the field of needle punching dies.

Background

The punching needle mould is used for punching a material plate by punching, a required hole is punched in the material plate, but the existing punching needle mould generally adopts a material pressing block to be pressed at the edge position of the material plate to keep the stability of the material plate, then the material plate is punched, and the punching needle is easy to generate deviation due to larger pressure during punching, so that the material plate is caused to have a moving phenomenon, the punching position is deviated, and the punched hole position is inaccurate; therefore, the existing positioning limiting structure needs to be improved so that the punching needle can punch holes at accurate positions on the material plate.

Disclosure of Invention

The utility model aims to: in order to overcome the defects in the prior art, the utility model provides the punching needle mould with accurate positioning, which is pushed by the guide positioning block to push the positioning structure to be abutted against the periphery of the material plate, so that the material plate is limited at the punching position of the punching needle, and the punching needle can punch a hole at the accurate position on the material plate.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

the needle punching die comprises an upper die block arranged at the bottom of an upper die leg at the bottom of an upper bottom plate and a lower die block arranged at the top of a lower die leg at the top of a lower bottom plate; the upper module and the lower module are arranged oppositely; the bottom of the upper module is provided with a guide positioning block; the lower module is provided with a positioning notch corresponding to the guide positioning block; a positioning structure is arranged in the positioning notch; the upper module and the lower module move relatively, the guide positioning block is embedded into the positioning notch to push the positioning structure, and the abutting end of the positioning structure is contacted with a material plate in a groove at the top of the lower module and limited to the material plate; and a punching needle on the upper module punches the material plate.

Further, a through hole corresponding to the punching needle is formed in the middle of the groove; a plurality of ejector rods are arranged in the bottom of the lower module, and the top ends of the ejector rods extend into the grooves to be abutted against the bottom surface of the material plate; and the power device in the lower module drives the ejector rod to move up and down.

Further, a guide structure is arranged at the diagonal position of the upper module and the lower module; the guide structure comprises a guide rod; the upper module is provided with a movable hole in a penetrating way; the edge of the movable hole at the bottom of the upper module is fixedly provided with a guide sleeve; a guide rod corresponding to the movable hole is fixedly arranged at the top of the lower module; the top end of the guide rod extends into the guide sleeve; the edge of the guide rod at the top of the lower module is provided with an embedded groove corresponding to the guide sleeve.

Further, a plurality of positioning structure arrays are distributed at four sides of the groove; the positioning structure comprises a pressing block; the passing groove formed in the side wall of the positioning notch is communicated with the groove; the pressing block is movably arranged in the passing groove, and the protruding part of the pressing block extends into the positioning notch; a spring is arranged between the protruding part and the inner wall of the positioning notch; the guide positioning block is abutted against the protruding portion, and the pressing block is abutted against the side wall of the material plate in the groove in a moving mode.

Further, a plurality of springs form a pressing section therebetween; the edge of the convex part is a curved surface, and the curved surface is positioned in the extrusion section; the edge of the bottom end of the guide positioning block is an arc surface; the arc surface is arranged corresponding to the curved surface, and the curved surface is positioned on the movement track of the guide positioning block.

Further, a single rib is fixedly arranged on the curved surface, and the length direction of the single rib is perpendicular to the movement direction of the guide positioning block; the arc surface is fixedly provided with a matched rib, and the matched rib is parallel to the single rib.

Further, a plurality of matching convex edges are arranged in the middle of the arc surface and are biased to the bottom end of the guide positioning block.

The beneficial effects are that: according to the upper bottom plate upper driving device, the upper die feet are driven to drive the upper die blocks to move up and down, the lower bottom plate upper driving device is used for driving the lower die feet to drive the lower die blocks to move up and down, the upper die blocks and the lower die blocks are matched with each other in a relative motion mode, the upper die blocks drive the guide positioning blocks to be embedded into the positioning notch, the guide positioning blocks push the positioning structures to abut against the side walls of the material plates, the material plates are limited, and then upper die blocks punch the limited material plates; the material plate is accurately positioned through the positioning structure, so that the punching is ensured to accurately punch the material plate.

Drawings

FIG. 1 is a drawing of a structure of a punch pin die;

FIG. 2 is a cross-sectional view of a punch pin die;

fig. 3 is a positioning structure diagram.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1-3: the needle punching die for accurate positioning comprises an upper die block 2 arranged at the bottom end of an upper die leg at the bottom of an upper bottom plate 1 and a lower die block 4 arranged at the top end of a lower die leg at the top of a lower bottom plate 3; the upper module 2 and the lower module 4 are arranged opposite to each other; the bottom of the upper module 2 is provided with a guide positioning block 5; the lower module 4 is provided with a positioning notch 6 corresponding to the guide positioning block 5; a positioning structure 7 is arranged in the positioning notch 6; the upper module 2 and the lower module 4 move relatively, the guide positioning block 5 is embedded into the positioning notch 6 to push the positioning structure 7, and the abutting end of the positioning structure 7 is contacted with a material plate in a groove 41 at the top of the lower module 4 and limited to the material plate; the punching needle 9 on the upper module 2 punches the material plate. The upper bottom plate upper driving device drives the upper die feet to drive the upper die blocks to move up and down, the lower bottom plate upper driving device drives the lower die feet to drive the lower die blocks to move up and down, the upper die blocks and the lower die blocks are matched with each other in a relative motion mode, the upper die blocks drive the guide positioning blocks to be embedded into the positioning notch, the guide positioning blocks push the positioning structures to abut against the side walls of the material plates, the material plates are limited, and then upper die blocks punch the limited material plates; the material plate is accurately positioned through the positioning structure, so that the punching is ensured to accurately punch the material plate.

The middle part of the groove 41 is provided with a through hole 42 corresponding to the punch pin 9; a plurality of ejector rods 43 are arranged in the bottom of the lower module 4, and the top ends of the ejector rods 43 extend into the grooves 41 to be abutted against the bottom surface of the material plate; the power device in the lower module 4 drives the ejector rod 43 to move up and down. Waste materials of the punching plate of the punching needle can leak out through the through hole; when the stamping is finished and the unloading is needed, the upper module and the lower module are separated relatively, the power device drives the ejector rods to eject the material plate out of the grooves, and then the material plate is taken out by a worker.

A guide structure 8 is arranged at the diagonal position of the upper module 2 and the lower module 4; the guide structure 8 comprises a guide rod 81; the upper module 2 is provided with a movable hole 82 in a penetrating way; the edge of the movable hole 82 at the bottom of the upper module 2 is fixedly provided with a guide sleeve 83; a guide rod 81 corresponding to the movable hole 82 is fixedly arranged at the top of the lower module 4; the top end of the guide rod 81 extends into the guide sleeve 83; the edge of the guide rod 81 at the top of the lower module 4 is provided with an embedded groove 84 corresponding to the guide sleeve 83. In the moving process of the upper module and the lower module, the guide rod is always kept in the guide sleeve, and the guide rod plays a role in guiding the upper module and the lower module; when the upper module and the lower module are assembled, the guide sleeve can correspondingly extend into the embedded groove, and the guide sleeve cannot interfere the matching of the upper module and the lower module.

The plurality of positioning structures 7 are distributed at four sides of the groove 41 in an array manner; the positioning structure 7 comprises a pressing block 71; the passing groove 61 formed on the side wall of the positioning notch 6 is communicated with the groove 41; the pressing block 71 is movably arranged in the passing groove 61, and a protruding part 711 of the pressing block 71 extends into the positioning notch 6; a spring 72 is arranged between the protruding part 711 and the inner wall of the positioning notch 6; the guide positioning block 5 abuts against the protruding portion 711, and the pressing block 71 moves to abut against the sidewall of the material plate in the groove 41. When the guide positioning block is embedded into the positioning notch, the guide positioning block is abutted against the protruding portion, the pressing block is enabled to slide along the passing groove, the pressing block is enabled to move to push the material plate, four sides of the material plate are abutted tightly through the pressing blocks which are arranged around, so that the material plate is accurately positioned in the middle of the groove, and the punching needle can be enabled to punch at the center of the material plate.

A pressing section 721 is formed between the plurality of springs 72; the edge of the protruding part 711 is a curved surface 712, and the curved surface 712 is positioned in the extrusion section 721; the edge of the bottom end of the guide positioning block 5 is an arc surface 51; the arc surface 51 is arranged corresponding to the curved surface 712, and the curved surface 712 is located on the movement track of the guide positioning block 5. The bottom end of the guide positioning block is lower than the bottom of the punching needle, namely the arc-shaped surface is lower than the bottom of the punching needle, so that the guide positioning block moves downwards, the arc-shaped surface downwards abuts against the curved surface to enable the pressing block to slide along the passing groove, after the arc-shaped surface is bent to pass through the curved surface, the side wall of the guide positioning block contacts with the protruding part, the pressing block does not slide any more at the moment, and the material plate is limited and stable; the punching needle begins to punch the center of the material plate at the moment.

A single rib 713 is fixedly arranged on the curved surface 712, and the length direction of the single rib 713 is perpendicular to the movement direction of the guide positioning block 5; the arc surface 51 is fixedly provided with a matching rib 52, and the matching rib 52 is parallel to the single rib 713. The plurality of matching convex edges 52 are arranged in the middle of the arc-shaped surface 51 and are biased towards the bottom end of the guide positioning block 5. When the arc surface is matched with the single convex rib, the plurality of matched convex ribs are in contact with the single convex rib in turn, so that the pressing block is enabled to shake, the position of the material plate can be slightly adjusted, the material plate can be ensured to be limited on an accurate position, and punching by the punching needle is facilitated.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model described above, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims (7)

1. The utility model provides a punch pin mould of accurate positioning which characterized in that: comprises an upper module (2) arranged at the bottom of an upper die leg at the bottom of an upper bottom plate (1) and a lower module (4) arranged at the top of a lower die leg at the top of a lower bottom plate (3); the upper module (2) and the lower module (4) are arranged oppositely; a guide positioning block (5) is arranged at the bottom of the upper module (2); a positioning notch (6) corresponding to the guide positioning block (5) is formed in the lower module (4); a positioning structure (7) is arranged in the positioning notch (6); the upper module (2) and the lower module (4) move relatively, the guide positioning block (5) is embedded into the positioning notch (6) to push the positioning structure (7), and the abutting end of the positioning structure (7) is contacted with a material plate in a groove (41) at the top of the lower module (4) and limited to the material plate; and a punching needle (9) on the upper module (2) punches the material plate.

2. The precisely positioned punch pin die of claim 1, wherein: the middle part of the groove (41) is provided with a through hole (42) corresponding to the punching needle (9); a plurality of ejector rods (43) are arranged in the bottom of the lower module (4), and the top ends of the ejector rods (43) extend into the grooves (41) to be abutted against the bottom surface of the material plate; the power device in the lower module (4) drives the ejector rod (43) to move up and down.

3. The precisely positioned punch pin die of claim 2, wherein: a guide structure (8) is arranged at the diagonal position of the upper module (2) and the lower module (4); the guide structure (8) comprises a guide rod (81); a movable hole (82) is formed in the upper module (2) in a penetrating manner; the edge of the bottom movable hole (82) of the upper module (2) is fixedly provided with a guide sleeve (83); a guide rod (81) corresponding to the movable hole (82) is fixedly arranged at the top of the lower module (4); the top end of the guide rod (81) extends into the guide sleeve (83); an embedded groove (84) corresponding to the guide sleeve (83) is formed in the edge of the top guide rod (81) of the lower module (4).

4. A precisely positioned punch pin die as set forth in claim 3, wherein: the plurality of positioning structures (7) are distributed at four sides of the groove (41); the positioning structure (7) comprises a pressing block (71); a passing groove (61) formed in the side wall of the positioning notch (6) is communicated with the groove (41); the pressing block (71) is movably arranged in the passing groove (61), and a protruding part (711) of the pressing block (71) stretches into the positioning notch (6); a spring (72) is arranged between the protruding part (711) and the inner wall of the positioning notch (6); the guide positioning block (5) is abutted against the protruding portion (711), and the abutting block (71) is abutted against the side wall of the material plate in the groove (41) in a moving mode.

5. The precisely positioned punch pin die of claim 4, wherein: -a pressing section (721) is formed between a plurality of said springs (72); the edge of the protruding part (711) is a curved surface (712), and the curved surface (712) is positioned in the extrusion section (721); the bottom edge of the guide positioning block (5) is an arc-shaped surface (51); the arc-shaped surface (51) is arranged corresponding to the curved surface (712), and the curved surface (712) is positioned on the movement track of the guide positioning block (5).

6. The precisely positioned punch pin die of claim 5, wherein: a single rib (713) is fixedly arranged on the curved surface (712), and the length direction of the single rib (713) is perpendicular to the movement direction of the guide positioning block (5); the arc surface (51) is fixedly provided with a matching rib (52), and the matching rib (52) is parallel to the single rib (713).

7. The precisely positioned punch pin die of claim 6, wherein: the plurality of matching convex edges (52) are arranged in the middle of the arc-shaped surface (51) and are biased towards the bottom end of the guide positioning block (5).

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