CN111922191A

CN111922191A - Punch a hole waste material and prevent rising with punch-die mould

Info

Publication number: CN111922191A
Application number: CN202010801105.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Huaibei Chuangzhishe Information Technology Co ltd
Current assignee: Huaibei Chuangzhishe Information Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2020-11-13

Abstract

The invention discloses a punch-die for preventing punching waste from rising back and discloses a punch-die structure for effectively preventing punching waste from rising back, which is characterized in that a limit table is arranged on a punch-die core, a compression spring is arranged at the bottom of the limit table and sleeved on the punch-die core, a groove is arranged at the bottom of the punch-die core, a threaded hole is arranged at the bottom of the groove, a punching head is arranged at the bottom of the punch-die core through a screw, the screw corresponds to the threaded hole, a boss is arranged on the punching head, the boss and the groove at the bottom of the punch-die core are correspondingly clamped, a plurality of accommodating grooves are arranged on the bottom end surface of the punching head, the accommodating grooves extend along the radial direction of the punching head, a plurality of abdicating grooves are arranged on the side wall of the punching head, the abdicating grooves correspond to the accommodating grooves and are communicated with the accommodating grooves, the bottom of the abdicating grooves are arc, the depths of the abdicati, the tongue depressors are correspondingly arranged in the accommodating groove.

Description

Punch a hole waste material and prevent rising with punch-die mould

Technical Field

The invention discloses a punch and die for preventing punching waste from rising back, relates to a punch and die for preventing punching waste from rising back in the process of machining a stamping part, and belongs to the field of die machining. In particular to a punch-die which separates punching waste from a punching male die and effectively avoids the lifting back of the punching waste.

Background

At present, in the processing of stamping parts, punching is the most commonly adopted process, and has the advantage of efficient hole making during mass production, but in the actual production process, the rebound of punching waste is one of the major problems, and once the punching waste jumps back to the punching die surface along with the punching male die, the product scrapping problems such as crushing, deformation and the like of product dies and the like can be caused.

Publication No. CN210996042U discloses a punching waste rebound prevention device, which comprises an upper die and a lower die; a punch is arranged below the upper die; a punching hole which is arranged opposite to the punch is formed in the lower die; a discharge channel communicated with the punched holes is arranged in the lower die and is positioned right below the punched holes; the periphery of the discharge channel is at least provided with a waste rebound prevention device; the waste rebound prevention device consists of a waste pre-separation mechanism and a material ejection mechanism; the waste material pre-separating mechanism is located above the ejecting mechanism and is movably connected with the ejecting mechanism through a hinge rod, the rebound device clamps waste materials through an ejecting block structure, but the rebound device cannot separate the waste materials from the punching raised heads during clamping, so that the sticking adsorption force generated when the punching raised heads rise is large, and the waste materials clamped by the ejecting blocks are easily taken out of the through holes of the female die.

Notice No. CN206382406U discloses a rebound device is prevented to waste material that punches a hole, including the die, the die is equipped with the through-hole from top to bottom, an entry for the terrace die punches a hole, die one side is equipped with the side opening, it is fixed to be equipped with the telescoping device to run through in the side opening, the telescoping device includes the casing, casing one end is sealed, the other end opening, the blind end butt of casing has the spring, the spring butt has the thimble, the tip of thimble is at the inner wall protrusion of die through-hole, its kicking block structure of this rebound device can't make drift and waste material separate when the clamping, thereby it is big to the adsorption affinity of waste material when leading to the drift to.

Disclosure of Invention

In order to improve the situation, the punch-die for preventing the punching waste from rising back provides a punch-die which separates the punching waste from a punching male die during punching and effectively prevents the punching waste from rising back.

The invention relates to a punch waste material anti-lifting punch-die, which is realized by the following steps: the invention relates to a punch waste material anti-lifting punch-die which comprises a punch die stamping structure and a limiting pushing structure, wherein the punch die stamping structure consists of a punch die core, a compression spring, a abdicating groove, a tongue depressor, a stamping head, an edge cutting edge, a limiting table and a boss, the limiting table is arranged on the punch die core, the compression spring is arranged at the bottom of the limiting table and sleeved on the punch die core, the bottom of the punch die core is provided with a groove, the bottom of the groove is provided with a threaded hole, the stamping head is arranged at the bottom of the punch die core through a screw, the screw corresponds to the threaded hole, the boss is arranged on the stamping head, the boss is correspondingly clamped with the groove at the bottom of the punch die core, the bottom end surface of the stamping head is provided with a plurality of accommodating grooves, the accommodating grooves extend along the radial direction of the stamping head, the side wall of the stamping head is provided with a plurality of, the depth of the intersection point of the abdicating groove and the containing groove is the maximum depth of the abdicating groove, a plurality of tongue depressors are correspondingly arranged in the containing groove, one end of each tongue depressor is hinged in the containing groove, a torsion spring is arranged at the hinged position, the other end of each tongue depressor is suspended in the abdicating groove, the end surface of the other end of each tongue depressor and the side wall of the stamping head are positioned at the same circumferential surface, the other end of each tongue depressor is provided with a,

the limiting pushing structure is composed of a concave mold core, a sliding sleeve, a plug screw and a sliding pin, a blanking hole is arranged in the middle of the concave mold core, the blanking hole corresponds to a stamping head, a plurality of mounting holes are formed in the side wall of the blanking hole, the mounting holes are step holes, the sliding sleeve corresponds to the mounting holes, mounting steps are arranged on the sliding sleeve, the mounting steps correspond to the mounting holes, the sliding pin corresponds to the sliding sleeve, the sliding pin can slide relative to the sliding sleeve, the sliding pin points to the blanking hole and stretches into the blanking hole, the sliding pin corresponds to a yielding groove, the plug screw is arranged on the concave mold core in a screwed mode and is located in a hole opening of the mounting hole, and a compression spring is arranged between the sliding pin and the plug screw.

Has the beneficial effects.

Firstly, can carry out the propelling movement separation to the blanking, avoid shifting up along with the terrace die.

And secondly, the punched hole opening can be protected, and stamping deformation is avoided.

Thirdly, the stamping head and the concave die core can be quickly detached and replaced to be adaptive to each other.

And fourthly, the telescopic force of the sliding pin can be adjusted, and the blanking is convenient to clear and take out for control.

Drawings

FIG. 1 is a schematic structural view of a punch-die mold for preventing punch waste from rising back according to the present invention;

FIG. 2 is a schematic structural view of the punch and die assembly for preventing punch waste from rising back;

FIG. 3 is a three-dimensional exploded view of a punching male die of a punch-die for preventing punch waste from rising back.

In the attached drawings

Wherein the method comprises the following steps: the stamping die comprises a male die core (1), a compression spring (2), a abdicating groove (3), a tongue depressor (4), a female die core (5), a sliding sleeve (6), a screw plug (7), a sliding pin (8), a stamping head (9), a workpiece (10), an edge cutting edge (11), a limiting table (12) and a boss (13).

The specific implementation mode is as follows:

the invention relates to a punch waste material anti-lifting punch-die, which is realized by the following steps: the invention relates to a punch waste material anti-lifting punch-die mould which comprises a punch stamping structure and a limiting pushing structure, wherein the punch stamping structure consists of a punch core (1), a compression spring (2), a relief groove (3), a tongue depressor (4), a stamping head (9), an edge cutting edge (11), a limiting table (12) and a boss (13), the punch core (1) is provided with the limiting table (12), the compression spring (2) is arranged at the bottom of the limiting table (12) and sleeved on the punch core (1), the bottom of the punch core (1) is provided with a groove, the bottom of the groove is provided with a threaded hole, the stamping head (9) is arranged at the bottom of the punch core (1) through a screw, the screw corresponds to the threaded hole, the stamping head (9) is provided with the boss (13), the boss (13) is correspondingly clamped with the groove at the bottom of the punch core (1), the bottom end surface of the stamping head (9) is provided with a plurality of accommodating grooves, the containing groove extends along the radial direction of the stamping head (9), the side wall of the stamping head (9) is provided with a plurality of abdicating grooves (3), the abdicating grooves (3) correspond to the containing groove and are communicated with the containing groove, the bottom of the abdicating groove (3) is arc-shaped, the groove depth of the intersection point of the abdicating groove (3) and the containing groove is the maximum depth of the abdicating groove (3), a plurality of tongue depressors (4) are correspondingly arranged in the containing groove, one end of each tongue depressor is hinged in the containing groove, a torsion spring is arranged at the hinged position, the other end of each tongue depressor is suspended in the abdicating groove (3), the end surface of the other end of the tongue depressor (4) and the side wall of the stamping head (9) are positioned at the same circumferential surface, the other end of the tongue depressor (4) is provided with a cutting edge, a limiting push structure is composed of a concave mold core (5), a sliding sleeve (6), a screw plug (7) and a, the blanking hole lateral wall is opened there are a plurality of mounting holes, the mounting hole is the step hole, and slide bushing (6) correspond and arrange in the mounting hole, the installation step has been put on slide bushing (6), installation step and mounting hole correspond and should laminate, and slide pin (8) correspond and arrange in slide bushing (6), slide pin (8) can slide relative slide bushing (6), the directional blanking hole of slide pin (8) just stretches into in the blanking hole, slide pin (8) are corresponding with groove of stepping down (3), and on female mold core (5) was arranged in to plug screw (7) spiro union, and were located the mounting hole drill way, compression spring has been put between slide pin (8) and plug screw (7).

When the stamping die is used, the male die core (1) and the female die core (5) are installed on corresponding modules, so that the male die core (1) and the female die core (5) correspond to each other, after the male die core (1) and the female die core (5) are closed, a sliding pin in the female die core (5) is correspondingly clamped in the abdicating groove (3) and positioned above the tongue depressor (4), then a metal plate is positioned in the die, the corresponding area is blanked and blanked under the action of the downward pressing of the male die core (1) and the action of the female die core (5) to form a hole groove, in the blanking process, the male die core (1) is pressed downward to cut the metal plate, the blanking corresponds to the blanking hole, then the male die core (1) is moved downward, the blanking head (9) is pushed to move along the blanking hole, when the stamping head (9) moves to the position of the sliding pin (8), the tongue depressor (4) pushes the sliding pin (8) to retract into the sliding sleeve, the stamping head (9) continuously moves downwards, when the tongue depressor (4) jumps over the sliding pin (8), the sliding pin (8) corresponds to the abdicating groove (3), the sliding pin (8) stretches out and is clamped into the abdicating groove (3), and the tongue depressor (4) is pushed downwards to enable the compression plate to deflect downwards, the blanking is pushed and separated, the compression spring (2) on the convex mold core (1) is stressed and compressed to provide a pre-driving force for the withdrawal of the convex mold core (1), when the convex mold core (1) is withdrawn, the tongue depressor (4) is stressed and continuously deflects to apply force to the torsion spring, when the tongue depressor (4) deflects to be separated from the sliding pin (8), the tongue depressor (4) resets under the action of the torsion spring and returns to the accommodating groove again, the blanking is pushed to the lower part of the sliding pin (8), and the plurality of sliding pins (8) separate the blanking,

the design of the abdicating groove (3) can enable the sliding pin (8) to smoothly slide in, and push and press the tongue depressors (4), and the plurality of tongue depressors (4) are matched to push and press the blanking;

the design of the compression spring (2) can compress the punched edge of the sheet metal, and the deformation of the sheet metal can be reduced by matching the compression action of the convex mold core (1);

the design of the screw plug (7) can be matched with the mounting hole to rapidly disassemble and replace the sliding pin (8), and meanwhile, the compression degree of the compression spring can be hinged by adjusting the screwing-in depth of the screw plug (7), so that the size of the telescopic driving force of the sliding pin (8) can be changed;

the purpose of separating the punching waste from the punching male die during punching and effectively avoiding the return of the punching waste is achieved.

The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

1. The utility model provides a punch a hole waste material and prevent rising back and use punch-die mould which characterized by: the convex mold core is provided with a limiting table, a compression spring is arranged at the bottom of the limiting table and sleeved on the convex mold core, the bottom of the convex mold core is provided with a groove, a stamping head is arranged at the bottom of the convex mold core through a screw, the screw corresponds to a threaded hole, the stamping head is provided with a boss, the boss corresponds to the groove at the bottom of the convex mold core and is clamped with the groove at the bottom of the convex mold core, the bottom end face of the stamping head is provided with a plurality of accommodating grooves, the accommodating grooves extend along the radial direction of the stamping head, the side wall of the stamping head is provided with a plurality of abdicating grooves, the abdicating grooves correspond to the accommodating grooves and are communicated with the accommodating grooves, a plurality of tongue depressors are correspondingly arranged in the accommodating grooves, one end of each tongue depressor is hinged in the accommodating groove, the other end face of each tongue depressor and the side wall of the stamping, the blanking hole corresponds to the stamping head, a plurality of mounting holes are formed in the side wall of the blanking hole, the mounting holes are stepped holes, the sliding sleeve is correspondingly arranged in the mounting holes, the sliding sleeve is provided with mounting steps, the mounting steps correspond to the mounting holes in a laminating mode, the sliding pin is correspondingly arranged in the sliding sleeve, and the screw plug is in threaded connection with the concave die core and is located in the hole opening of the mounting hole.

2. The punch and die mold for preventing punch waste from rising back as claimed in claim 1, wherein during punching, the punch core is pressed downward to cut the metal plate, the blanking is corresponded to the blanking hole, then the punch core is moved downward, the blanking is pushed by the punch head to move along the blanking hole, when the punch head moves to the position of the slide pin, the tongue depressor pushes the slide pin to retract into the slide sleeve, the punch head continues to move downward, when the tongue depressor jumps over the slide pin, the slide pin is corresponded to the abdicating groove, the slide pin is extended to be clamped into the abdicating groove, and the tongue depressor is pushed downward to deflect the compression plate downward, so as to push and separate the blanking.

3. The punch-die mold for preventing punch waste from rising back as claimed in claim 1, wherein the bottom of the relief groove is arc-shaped.

4. The punch-die mold for preventing punch waste from rising back as claimed in claim 3, wherein the groove depth of the intersection point of the relief groove and the accommodating groove is the maximum depth of the relief groove.

5. The punch and die mold as claimed in claim 1, wherein the compression spring on the core is compressed to provide a pre-driving force for withdrawing the core, the tongue depressor is deflected to apply a force to the torsion spring, and when the tongue depressor is deflected to be separated from the slide pin, the tongue depressor is reset by the torsion spring and returns to the receiving groove again, the blanking is pushed to the lower part of the slide pin, and the plurality of slide pins block the blanking.

6. The punch and die mold for preventing punch waste from rising back as claimed in claim 1, wherein the groove bottom is formed with a threaded hole.

7. The punch and die mold for preventing punch waste from rising back as claimed in claim 1, wherein the slide pin is slidable relative to the slide sleeve.

8. The punch-die mold for preventing punch waste from rising back as claimed in claim 1, wherein the slide pin is directed to the blanking hole and extends into the blanking hole, and the slide pin corresponds to the abdicating groove.

9. The punch and die mold for preventing punch waste from rising back as claimed in claim 8, wherein a compression spring is interposed between the slide pin and the plug screw.

10. The punch and die mold for preventing the punch waste from rising back as claimed in claim 1, characterized in that the design of the compression spring can compress the sheet metal punching edge, and the deformation of the sheet metal can be reduced by matching the compression action of the punch core.