CN211437715U

CN211437715U - Small round hole punch structure

Info

Publication number: CN211437715U
Application number: CN201922184185.7U
Authority: CN
Inventors: 金岩; 李晓燕
Original assignee: Interplex Electronics Hangzhou Co Ltd
Current assignee: Yinawei Hangzhou Intelligent Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-08
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a tiny round hole punch structure, which belongs to the technical field of die punches and comprises a punch component arranged in an upper die, wherein the upper die comprises a die holder and a template connected with the lower surface of the upper die holder; the punch assembly comprises a sheath assembly and a punch body arranged in the sheath assembly, a mounting groove is formed in the lower surface of the sheath assembly in the middle, the punch body is embedded in the mounting groove and comprises a limiting portion, a connecting portion and a processing portion, the diameter of the connecting portion is larger than that of the limiting portion and smaller than that of the processing portion, the limiting portion is embedded in the mounting groove, and the processing portion stretches out of the mounting groove. The utility model discloses have and shorten punch length to increase punch intensity is increased to the ratio of increaseing punch working part and fixed part, thereby does benefit to the effect of the die-cut volume production nature of aperture round hole.

Description

Small round hole punch structure

Technical Field

The utility model relates to a mould punching pin technical field, in particular to small round hole punching pin structure.

Background

The punch is arranged on the upper die and used for punching the round hole. In the existing punching technology, a straight rod punch is generally adopted for punching round holes, as shown in the attached drawing 1 in the specification, the straight rod punch 6 is suitable for large punching, the strength of the punch 6 is high, various superposition forces in the punching process can be borne, and the diameter of a fixed part of the straight rod punch 6 is equal to that of a working part. If the straight rod punch 6 is used for punching a small-aperture circular hole, the strength of the punch 6 is weak and is not enough to bear the superposition force in the punching process, and the situation of edge breakage and fracture is easy to occur during actual punching, so that the punching mass production performance of the small-aperture circular hole is poor, and the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a small round hole punching pin structure has and shortens punching pin length to increase punching pin intensity is increased with the ratio of fixed part to increase punching pin work portion, thereby does benefit to the effect of the die-cut volume production nature of little aperture round hole.

A micro round hole punch structure comprises a punch component arranged in an upper die, wherein the upper die comprises a die holder and a template connected with the lower surface of the upper die holder, the lower surface of the template is vertical to the die holder and is provided with a mounting hole, the punch component is inserted in the mounting hole, and the lower surface of the template is connected with a positioning component for fixing a sheath component;

the punch assembly comprises a sheath assembly and a punch body arranged in the sheath assembly, wherein the lower surface of the sheath assembly is provided with a mounting groove in the middle, the punch body is embedded in the mounting groove and comprises a limiting part, a connecting part and a processing part, the diameter of the connecting part is larger than that of the limiting part and smaller than that of the processing part, the limiting part is embedded in the mounting groove, and the processing part extends out of the mounting groove.

The utility model discloses further set up to: the utility model discloses a die holder, including the die holder, the die holder includes the die holder, the die holder is provided with the die holder, the.

The utility model discloses further set up to: the sheath assembly is uniformly divided into a first sheath and a second sheath along the radial direction, and the mounting grooves are uniformly formed in one side, close to each other, of the first sheath and the second sheath.

The utility model discloses further set up to: the stamping die comprises a die holder, a first sheath, a second sheath, a spring, a punch and a pressing plate, wherein the die holder is arranged on the die holder, the pressing plate is arranged on the lower surface of the die holder, the lower surface of the die holder is connected with the pressing plate through the spring, one end, far away from the die holder, of the first sheath and the second sheath is located in the pressing plate, a yielding hole is formed in the lower surface of the pressing plate, the processing portion of the.

The utility model discloses further set up to: the diameter of spacing portion is 1mm, the diameter of connecting portion is 0.5mm, the diameter of processing portion is 0.3 mm.

The utility model discloses further set up to: the upper surface of the pressure plate is fixedly connected with a base plate, and the first sheath and the second sheath penetrate through the base plate.

When the workpiece is punched, the punching machine drives the whole body to move downwards to enable the material pressing plate to press the workpiece on the lower die, the spring is compressed, and after the base plate is abutted to the positioning bolt, the die holder drives the die plate to continuously move downwards to enable the processing part of the punch body to extend out of the abdicating hole to punch the workpiece. Because the setting of sheath subassembly, can effectively reduce the length of punching pin, the structure that the punching pin body comprises spacing portion, connecting portion and processing portion simultaneously can show the intensity that strengthens the punching pin body, further avoids the condition that the punching pin body takes place the rupture when die-cut, makes the die-cut processing of aperture accomplish in batches.

To sum up, the utility model discloses following beneficial effect has:

1. the punch assembly consisting of the sheath assembly and the punch body effectively reduces the length of the punch and improves the strength;

2. the punch is arranged by the limiting part, the connecting part and the processing part, so that the overall strength of the limiting part and the connecting part is higher than that of the processing part, and the strength is further improved;

3. the connection between the punch assembly and the sheath assembly is facilitated by the provision of the sheath assembly consisting of the first sheath and the second sheath.

Drawings

FIG. 1 is a schematic diagram of a prior art structure for embodying the whole;

fig. 2 is a schematic structural diagram for embodying the whole of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B in fig. 2.

In the figure, 1, a punch component; 11. a jacket assembly; 111. mounting grooves; 112. a limiting ring groove; 113. a first sheath; 114. a second sheath; 2. an upper die; 21. a template; 211. mounting holes; 22. a die holder; 3. a positioning assembly; 31. pressing a plate; 32. positioning the bolt; 4. a punch body; 41. a limiting part; 42. a connecting portion; 43. a processing section; 5. a material pressing plate; 51. a spring; 52. a hole of abdication; 53. backing plates, 54, guide rods; 6. punching.

Detailed Description

The present invention will be described in detail with reference to the attached drawings, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical content.

Example (b):

as shown in fig. 2 and 3, for the utility model provides a small round hole punch structure, including installing punch subassembly 1 in last mould 2, it includes die holder 22 and the template 21 of connection at last 2 seat lower surfaces to go up mould 2, mounting hole 211 has been seted up to template 21 lower surface perpendicular to die holder 22, punch subassembly 1 is pegged graft in mounting hole 211, punch subassembly 1 includes sheath subassembly 11 and installs the punch body 4 in sheath subassembly 11, mounting groove 111 has been seted up between two parties to sheath subassembly 11 lower surface, sheath subassembly 11 evenly divide into first sheath 113 and second sheath 114 along radial, mounting groove 111 evenly sets up in first sheath 113 and second sheath 114 and is close to one side each other, punch body 4 is installed in mounting groove 111.

As shown in fig. 2 and 3, the punch body 4 includes a stopper portion 41, a connecting portion 42, and a processed portion 43, wherein the diameter of the connecting portion 42 is larger than that of the stopper portion 41 and smaller than that of the processed portion 43, the diameter of the stopper portion 41 is 1mm, the diameter of the connecting portion 42 is 0.5mm, and the diameter of the processed portion 43 is 0.3 mm. The limiting part 41 is embedded in the mounting groove 111, and the processing part 43 extends out of the mounting groove 111. Because the setting of sheath subassembly 11 can effectively reduce the length of punch body 4, simultaneously because the structure that punch body 4 comprises processing portion 43, spacing portion 41 and spacing portion 41, can effectively strengthen the intensity of punch body 4 non-processing department to difficult emergence rupture in the processing.

As shown in fig. 2 and 4, the lower surface of the mold plate 21 is connected with a positioning assembly 3 for fixing the sheath assembly 11, the positioning assembly 3 includes a pressing plate 31 and a positioning bolt 32, a limit ring groove 112 is formed on the side wall of the sheath, the vertical distance between one side of the limit ring groove 112 close to the backing plate 53 of the upper mold 2 and the lower surface of the mold base 22 is equal to the depth of the mounting hole 211, the positioning bolt 32 penetrates through the pressing plate 31 and is screwed with the mold plate 21, and the pressing plate 31 is abutted against the groove wall of the limit ring groove 112 and the lower surface of the mold.

As shown in fig. 2 to 4, the lower surface of the die holder 22 is connected to the pressure plate 5 through a guide rod 54 and a spring 51, wherein one end of the guide rod 54 is fixedly connected to the lower surface of the die holder 22, and the other end of the guide rod passes through the pressure plate 5 and is connected in a sliding manner; the spring 51 is sleeved on the guide rod 54, and one end of the spring is fixed with the die holder 22, and the other end of the spring is fixed with the upper surface of the pressure plate 5. The ends, far away from the die holder 22, of the first sheath 113 and the second sheath 114 are located in the pressure plate 5, the lower surface of the pressure plate 5 is provided with a yielding hole 52, the processing part 43 of the punch extends out of the yielding hole 52 when the spring 51 is compressed, and the processing part 43 is located in the yielding hole 52 when the spring 51 is in an original length state. The backing plate 53 is fixedly connected to the upper surface of the pressure plate 5, the first sheath 113 and the second sheath 114 are penetrated by the backing plate 53, and when the processing portion 43 extends out of the abdicating hole 52, the backing plate 53 abuts against the positioning bolt 32 to protect the pressure plate 5 from contacting with the positioning bolt 32.

The implementation principle of the above embodiment is as follows: when punching a workpiece, the whole punch is driven to move downwards to press the workpiece on the lower die by the pressure plate 5, the spring 51 is compressed, and after the backing plate 53 is abutted against the positioning bolt 32, the die holder 22 drives the die plate 21 to move downwards continuously, so that the processing part 43 of the punch body 4 extends out of the abdicating hole 52 to punch the workpiece. Due to the arrangement of the sheath component 11, the length of the punch can be effectively reduced, meanwhile, the strength of the punch body 4 can be obviously enhanced due to the structure formed by the limiting part 41, the connecting part 42 and the processing part 43, the situation that the punch body 4 is broken during punching is further avoided, and the small-aperture punching processing is completed in batches.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A small round hole punch structure is characterized in that: the punching die comprises a punching assembly (1) arranged in an upper die (2), wherein the upper die (2) comprises a die holder (22) and a template (21) connected to the lower surface of the die holder of the upper die (2), the lower surface of the template (21) is vertical to the die holder (22) and is provided with a mounting hole (211), the punching assembly (1) is inserted in the mounting hole (211), and the lower surface of the template (21) is connected with a positioning assembly (3) for fixing a sheath assembly (11);

punch subassembly (1) includes sheath subassembly (11) and installs punch body (4) in sheath subassembly (11), mounting groove (111) have been seted up in the middle to sheath subassembly (11) lower surface, punch body (4) are inlayed and are located in mounting groove (111), punch body (4) are including spacing portion (41), connecting portion (42) and processing portion (43), the diameter of connecting portion (42) is greater than the diameter of spacing portion (41), is less than the diameter of processing portion (43), spacing portion (41) are inlayed and are located in mounting groove (111), processing portion (43) are stretched out in by mounting groove (111).

2. The micro round hole punch structure of claim 1, wherein: spacing annular groove (112) have been seted up on the sheath lateral wall, vertical distance between spacing annular groove (112) are close to last mould (2) backing plate (53) one side and die holder (22) lower surface equals with the degree of depth of mounting hole (211), locating component (3) are including clamp plate (31) and positioning bolt (32), positioning bolt (32) pass clamp plate (31) and with template (21) butt, clamp plate (31) and the equal butt of cell wall and template (21) lower surface of spacing annular groove (112).

3. The micro round hole punch structure of claim 2, wherein: the sheath assembly (11) is uniformly divided into a first sheath (113) and a second sheath (114) along the radial direction, and the installation grooves (111) are uniformly formed in one side, close to each other, of the first sheath (113) and the second sheath (114).

4. The micro round hole punch structure of claim 3, wherein: die holder (22) lower surface is connected with pressure flitch (5) through spring (51), die holder (22) one end is kept away from in pressure flitch (5) first sheath (113) and second sheath (114), pressure flitch (5) lower surface has been seted up and has been stepped down hole (52), when spring (51) compress the processing portion (43) of punching pin is stretched out by stepping down hole (52) in, when spring (51) original length state processing portion (43) are located and step down hole (52).

5. The micro round hole punch structure of claim 1, wherein: the diameter of spacing portion (41) is 1mm, the diameter of connecting portion (42) is 0.5mm, the diameter of processing portion (43) is 0.3 mm.

6. The micro round hole punch structure of claim 4, wherein: the upper surface of the pressure plate (5) is fixedly connected with a backing plate (53), and the first sheath (113) and the second sheath (114) penetrate through the backing plate (53).