CN111069414B

CN111069414B - Part punching device and method

Info

Publication number: CN111069414B
Application number: CN201911368957.0A
Authority: CN
Inventors: 孙裔良; 田忠轩; 田伟伟; 田明珠
Original assignee: Sanco New Energy Technology Co Ltd
Current assignee: Shunke Zhilian Technology Co.,Ltd.
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-11-03
Anticipated expiration: 2039-12-26
Also published as: CN111069414A

Abstract

The invention relates to a part punching processing device and a method, wherein the part punching processing device comprises: the punching mechanism comprises a first pressing mechanism, a second pressing mechanism, a pressing assembly and a punching assembly, wherein the first pressing mechanism is in abutting fit with the second pressing mechanism, a first die cavity used for installing one part of a part is formed in the abutting end of the first pressing mechanism, a second die cavity used for installing the other part of the part is formed in the abutting end of the second pressing mechanism, the pressing assembly is movably arranged on the first pressing mechanism and inserted into the first die cavity and is in contact with the part, the punching assembly is arranged on the second pressing mechanism, the size diameter of the punching end of the punching assembly corresponds to the size diameter of the hole required by the part, and the punching end of the punching assembly extends into the second die cavity and is used for extruding with the part. The processing hole with a specific size can be formed at one time by stamping the part through the applying assembly and the punching assembly.

Description

Part punching device and method

Technical Field

The invention relates to the technical field of part machining, in particular to a part punching machining device and method.

Background

At present, when a part with a small size is machined, machining is often selected, namely, a milling head is used for milling the part. For example: when the part needs to be holed, the part to be machined is fixed, then the milling head moves towards the part to be machined and contacts with the part to be machined, and at the moment, the part to be machined is driven by corresponding equipment to move relative to the milling head until the hole opening operation on the part to be machined is completed. The processing mode cannot realize one-time processing forming when the hole is formed in the part to be processed, namely, the processing efficiency is low.

Disclosure of Invention

Accordingly, there is a need for a part punching apparatus and method that can perform one-step forming of a part.

The technical scheme is as follows:

a part punch machining apparatus comprising: the punching mechanism comprises a first pressing mechanism, a second pressing mechanism, a pressing assembly and a punching assembly, wherein the first pressing mechanism is in abutting fit with the second pressing mechanism, a first die cavity used for installing one part of a part is formed in the abutting end of the first pressing mechanism, a second die cavity used for installing the other part of the part is formed in the abutting end of the second pressing mechanism, the pressing assembly is movably arranged on the first pressing mechanism and inserted into the first die cavity and is in contact with the part, the punching assembly is arranged on the second pressing mechanism, the size diameter of the punching end of the punching assembly corresponds to the size diameter of the hole required by the part, and the punching end of the punching assembly extends into the second die cavity and is used for extruding with the part.

When the part punching processing device is used, firstly, the sizes and the shapes of the openings of the first die cavity and the second die cavity are determined according to parts to be processed, namely, when the first pressing mechanism and the second pressing mechanism are mutually abutted, the parts are stored in the first die cavity and the second die cavity. When the pressing assembly presses towards the part in the first pressing mechanism, the pressing assembly can drive the part to move from the first die cavity to the second die cavity, the part can be abutted against the punching end of the punching assembly, and the part can be pressed out of the depression by the punching end of the punching assembly along with further pressing of the pressing assembly. Meanwhile, the size of the punching end of the punching assembly corresponds to the size of the hole required by the part, namely, the part is punched by the applying assembly and the punching assembly, so that a processing hole with a specific size (such as a specific hole depth and a specific hole opening) can be formed at one time.

A part punching processing method adopts the part punching processing device and comprises the following steps: determining the size of the punching end of the punching assembly according to the aperture of the hole required by the part to be processed; placing the part in a first mold cavity and a second mold cavity; pressing the part until the part is abutted against the punching end of the punching assembly and the punching deformation occurs; and taking out the punched and deformed part from the first die cavity and the second die cavity.

When the part processing method is used, the processing requirements corresponding to different parts are different, so that when the parts are processed in batch, the size of the punching end of the punching assembly is determined according to the hole diameter of the hole to be processed, and the punching assembly can be enabled to abut against the hole with the preset size on the parts. And placing the part in the first die cavity and the second die cavity, and pressing one end of the part until the part is abutted against the punching end of the punching assembly and the punching deformation occurs. At the moment, the depth of punching deformation on the part is continuously increased along with the continuous pressing on the part, and the pressing can be stopped when the depth of punching deformation reaches the preset depth. And finally, taking out the punched and deformed part from the first die cavity and the second die cavity. The part machining method can form machining holes with specific sizes (such as specific hole depth and specific hole opening) on the part at one time through pressing and pressing of the punching assembly on the part.

The technical solution is further explained below:

the part punching device further comprises a first driving piece, the pressing assembly comprises a pressing pushing block, a first force transmission piece and a first pressing piece, the first driving piece is connected with the first force transmission piece, the pressing pushing block is movably arranged in the first pressing mechanism, a force application hole is formed in the first pressing mechanism, the first force transmission piece passes through the force application hole and the pressing pushing block are in contact, the first pressing piece is arranged inside the first pressing mechanism, one end of the first pressing piece is connected with the pressing pushing block, and the other end of the first pressing piece is used for being in contact with the part.

The punching assembly comprises a punching piece and a supporting cushion block, the punching piece and the supporting cushion block are arranged in the second pressing mechanism, one end of the punching piece is connected with the supporting cushion block, and the other end of the punching piece is used for abutting and matching with the part.

The part punching device further comprises a material pushing assembly, the material pushing assembly is movably sleeved outside the punching piece, and one end of the material pushing assembly extends into the second die cavity and the part is in contact with each other.

The part processingequipment that punches a hole still includes the second driving piece, it passes power piece and second application of force piece including pushing away material sleeve pipe, second to push away the material subassembly, it establishes to push away material sleeve pipe movably the outside of punching the piece, the second pass the power piece the one end with it links to each other to push away the material sleeve pipe, the second pass the power piece the other end with second application of force piece is inconsistent, second application of force piece with the second driving piece links to each other.

The part punching processing device also comprises a first abutting part and a second abutting part, wherein the first abutting part is arranged at the abutting end of the first pressing mechanism, and the second abutting part is arranged at the abutting end of the second pressing mechanism; when the first pressing mechanism is abutted against the second pressing mechanism, the first abutting portion and the second abutting portion are abutted against each other in a fixed correspondence, the first abutting portion is provided with the first die cavity, and the second abutting portion is provided with the second die cavity.

Before the step of placing the part in the first mold cavity and the second mold cavity, the method further comprises the steps of: and (4) cutting to obtain parts with specific sizes.

Before the step of placing the part in the first mold cavity and the second mold cavity, the method further comprises the steps of: and performing shaping operation on the part.

The part is pressed until the part is abutted against the punching end of the punching assembly and the punching deformation is generated, and the method further comprises the following steps: and extruding the parts to form the flange.

Drawings

Fig. 1 is a schematic structural diagram of a part punching device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a shaping apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a flange processing apparatus according to an embodiment of the present invention;

fig. 4 is a flowchart of a part punching method according to an embodiment of the present invention.

Description of reference numerals:

10. the part comprises 100, a first pressing mechanism, 110, a first die cavity, 120, a force application hole, 130, a first abutting part, 200, a second pressing mechanism, 210, a second die cavity, 220, a material pushing assembly, 221, a material pushing sleeve, 222, a second force transmission piece, 223, a second force application piece, 230, a second abutting part, 300, a pressing assembly, 310, a pressing push block, 320, a first force transmission piece, 330, a first pressing piece, 400, a punching assembly, 410, a punching piece, 420, a supporting cushion block, 500, a shaping device, 510, a first pressing body, 511, a first pressing rod, 520, a second pressing body, 521, a second pressing rod, 600, a flange processing device, 610, a third pressing body, 611, a third pressing rod, 612, a convex part, 620, a fourth pressing body, 621, a fourth pressing rod, 622 and a fourth die cavity.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

In one embodiment, as shown in fig. 1, a part punching apparatus includes: a first pressing mechanism 100, a second pressing mechanism 200, a pressing assembly 300 and a punching assembly 400, the first pressing mechanism 100 is in interference fit with the second pressing mechanism 200, the interference end of the first pressing mechanism 100 is provided with a first mold cavity 110 for installing a part of the part 10, the abutting end of the second pressing mechanism 200 is provided with a second cavity 210 for installing another part of the component 10, the pressing assembly 300 is movably installed on the first pressing mechanism 100, and the pressing assembly 300 is inserted into the first mold cavity 110 and contacts the part 10, the punching assembly 400 is installed on the second pressing mechanism 200, the diameter of the punching end of the punching assembly 400 corresponds to the diameter of the hole required by the part 10, and the punch end of the punch assembly 400 extends into the second die cavity 210 and is used for pressing with the part 10.

When the part punching device is used, firstly, according to the part 10 to be processed, the sizes and shapes of the openings of the first mold cavity 110 and the second mold cavity 210 are determined, that is, when the first pressing mechanism 100 and the second pressing mechanism 200 are mutually abutted, the part 10 is stored in the first mold cavity 110 and the second mold cavity 210. When the pressing assembly 300 presses the component 10 in the first pressing mechanism 100, the pressing assembly 300 drives the component 10 to move from the first mold cavity 110 to the second mold cavity 210, the component 10 abuts against the punching end of the punching assembly 400, and the component 10 is pressed out of the punching end of the punching assembly 400 to be recessed as the pressing assembly 300 further presses. Meanwhile, the diameter of the punching end of the punching assembly 400 corresponds to the diameter of the hole to be punched in the part 10, i.e. the machining hole with a specific size (e.g. a specific hole depth and a specific hole opening) can be formed at one time by punching the part 10 through the applying assembly and the punching assembly 400.

Further, the machining hole in the component 10 may be a through hole. For example: when a recess is formed in the punching assembly 400, the pressing assembly 300 presses the part 10, and the stressed portion of the part 10 is finally separated from the part 10 under external pressure, and the separated part 10 can be pressed into the recess of the punching assembly 400 along with the pressing assembly 300. Finally, the pressing assembly 300 is removed, and the part 10 with the through hole is obtained.

As shown in fig. 1, in an embodiment, the part punching device further includes a first driving member, the pressing assembly 300 includes a pressing pushing block 310, a first force transferring member 320 and a first pressing member 330, the first driving member is connected to the first force transferring member 320, the pressing pushing block 310 is movably installed in the first pressing mechanism 100, the first pressing mechanism 100 is provided with a force applying hole 120, the first force transferring member 320 abuts against the pressing pushing block 310 through the force applying hole 120, the first pressing member 330 is installed inside the first pressing mechanism 100, one end of the first pressing member 330 is connected to the pressing pushing block 310, and the other end of the first pressing member 330 is used for abutting against the part 10. Specifically, the first driving member is a cylinder or an oil cylinder. The first force transmission member 320 is a rod or a cylinder. The first pressing member 330 is a pressing block or a pressing column. In this embodiment, the first pressing member 330 is a cylinder, when the part 10 only needs to be punched towards one end of the punching assembly 400, the end of the first pressing member 330 has a diameter larger than the end diameter of the part 10, and the punching end of the punching assembly 400 has a diameter smaller than the end diameter of the part 10. When the part 10 needs to be holed at two ends simultaneously, the end of the first pressing member 330 has a smaller size than the end diameter of the part 10, and the punching end of the punching assembly 400 has a smaller size than the end diameter of the part 10. Further, the first pressing mechanism 100 and the second pressing mechanism 200 are housings or cases. The pressing pushing block 310 is installed inside the first pressing mechanism 100, and two ends of the pressing pushing block 310 respectively contact with two corresponding side walls inside the first pressing mechanism 100, and at this time, the movement of the pressing pushing block 310 is more gradual when the first transmission member 320 pushes the pressing pushing block 310 to move, so that the pressure of the pressing pushing block 310 acting on the first pressing member 330 is more balanced.

As shown in fig. 1, in one embodiment, the punching assembly 400 includes a punching member 410 and a supporting block 420, the punching member 410 and the supporting block 420 are installed in the second pressing mechanism 200, one end of the punching member 410 is connected to the supporting block 420, and the other end of the punching member 410 is used for interference fit with the component 10. Specifically, the punching element 410 is a cylinder or a rod. The end of the punching element 410 may be designed according to the actual machining requirements, for example: when a machining hole with a rectangular and square opening is required to be formed in the part 10, the punching end of the punching member 410 may be designed to be square or rectangular. Further, the supporting cushion block 420 is installed inside the second pressing mechanism 200, the side portion of the supporting cushion block 420 is abutted against the inner side wall of the second pressing mechanism 200, and meanwhile, one end of the supporting cushion block 420 is abutted against the bottom of the second pressing mechanism 200. The arrangement mode can effectively prevent the supporting cushion block 420 from moving inside the second pressing mechanism 200, so that the supporting cushion block 420 can effectively support the punching piece 410 in an auxiliary manner, and the hole opening effect on the part 10 is ensured.

As shown in fig. 1, in one embodiment, the punch parts tooling apparatus further includes a pusher assembly 220. The pushing assembly 220 is movably sleeved outside the punching member 410, and one end of the pushing assembly 220 extends into the second die cavity 210 to abut against the part 10. Specifically, considering that the part 10 is continuously moved from the first mold cavity 110 to the second mold cavity 210 under the pressing action of the pressing assembly 300, the first pressing mechanism 100 is removed after the part 10 is processed, and the processed part 10 is completely sunk in the second mold cavity 210, so that the part cannot be taken out from the end of the second pressing mechanism 200 (the port of the second mold cavity 210). Therefore, the pushing assembly 220 is processed inside the second pressing mechanism 200, that is, the pushing assembly 220 can move up and down along the axial direction of the punching element 410, and after the part 10 is processed, the part 10 is ejected out of the second die cavity 210 by the movement of the pushing assembly 220.

In one embodiment, the punch work apparatus further comprises a second drive member, as shown in figure 1. The material pushing component 220 comprises a material pushing sleeve 221, a second force transmission piece 222 and a second force application piece 223, the material pushing sleeve 221 is movably sleeved outside the punching piece 410, one end of the second force transmission piece 222 is connected with the material pushing sleeve 221, the other end of the second force transmission piece 222 is in contact with the second force application piece 223, and the second force application piece 223 is connected with the second driving piece. Specifically, the second driving member is a cylinder or an oil cylinder. The second force-transmitting member 222 is a rod or a cylinder. The second force applying member 223 is a force applying block or a force applying rod. Inside supplementary cushion and the supplementary gasket of still being equipped with of second pressing mechanism 200, just the activity chamber has been seted up on the supplementary cushion, supplementary gasket movably installs the activity intracavity, one of them side of supplementary gasket with the tip that pushes away material sleeve 221 is inconsistent, the other end of supplementary gasket with the second passes power piece 222 inconsistent. In the above embodiment, the second force transmission member 222 is more conveniently contacted with the pushing sleeve 221 through the auxiliary cushion block, so that the pushing effect of the pushing assembly 220 is ensured.

As shown in fig. 1, in one embodiment, the apparatus for punching parts further includes a first interference portion 130 and a second interference portion 230. The first abutting portion 130 is disposed at the abutting end of the first pressing mechanism 100, and the second abutting portion 230 is disposed at the abutting end of the second pressing mechanism 200; when the first pressing mechanism 100 abuts against the second pressing mechanism 200, the first abutting portion 130 and the second abutting portion 230 abut against each other, the first abutting portion 130 is provided with the first mold cavity 110, and the second abutting portion 230 is provided with the second mold cavity 210. Specifically, the first interference part 130 and the second interference part 230 may be made of tungsten steel or cemented carbide. In this embodiment, the first abutting portion 130 and the second abutting portion 230 are made of tungsten steel. When the first pressing mechanism 100 is abutted against the second pressing mechanism 200, the tungsten steel has the characteristics of high hardness, good wear resistance and the like, so that the service life of the part punching processing device is greatly prolonged. Further, the cavity walls of the first cavity 110 and the second cavity 210 are made of tungsten steel, so that the part 10 does not wear the wall of the first cavity 110 or the wall of the second cavity 210 when rubbing against the wall of the first cavity 110 or the wall of the second cavity 210.

As shown in fig. 2 to 4, in an embodiment, a method for punching a part, which uses the apparatus for punching a part according to any one of the above embodiments, includes the following steps:

s100, determining the size of the punching end of the punching assembly 400 according to the aperture of the hole required by the part 10 to be processed;

s200, placing the part 10 in a first mold cavity 110 and a second mold cavity 210;

s300, pressing the part 10 until the part 10 is abutted against the punching end of the punching assembly 400 and punching deformation occurs;

s400, taking out the punched and deformed part 10 from the first die cavity 110 and the second die cavity 210.

When the method for processing the part 10 is used, considering that the processing requirements corresponding to different parts 10 are different, when the parts 10 are processed in batch, the size of the punching end of the punching assembly 400 needs to be determined according to the hole diameter of the hole to be processed of the part 10, so that the punching assembly 400 can be ensured to be capable of pressing a hole with a preset size on the part 10. The part 10 is placed in the first die cavity 110 and the second die cavity 210, and one end of the part 10 is pressed until the part 10 abuts against the punching end of the punching assembly 400 and punching deformation occurs. At this time, as the pressing of the part 10 is continued, the depth of the punching deformation of the part 10 is increased, and the pressing may be stopped when the depth of the punching deformation reaches a predetermined depth. Finally, the punched and deformed part 10 is removed from the first cavity 110 and the second cavity 210. The method for machining the part 10 can form the machining hole with a specific size (such as a specific hole depth and a specific hole opening) on the part 10 at one time through the pressing and the pressing of the punching assembly 400 on the part 10.

As shown in fig. 2 and 4, in one embodiment, before the step of placing the part 10 in the first mold cavity 110 and the second mold cavity 210, the method further comprises the steps of: and S110, obtaining the part 10 with a specific size by material shearing. And S120, shaping the part 10. Specifically, after the target part 10 is obtained by material shearing, the section of the obtained part 10 may have a significant difference from an actual section (raw material section) due to two actions of cutting and snapping the section when the material shearing mechanism shears the material. Therefore, the cross section of the part 10 is repaired by the reshaping. Further, the used shaping device 500 includes a first pressing body 510 and a second pressing body 520, the first pressing body 510 is provided with a first pressing rod 511, the second pressing body 520 is provided with a third mold cavity for placing the part 10, the second pressing body 520 is provided with a second pressing rod 521 inside, and one end of the second pressing rod 521 can extend into the third mold cavity to be abutted against the part 10. When the first pressing body 510 and the second pressing body 520 are abutted against each other, the first pressing rod 511 can be inserted into the third mold cavity and abutted against the part 10. At this time, the part 10 can be re-stamped at the burr, the bulge and other parts on the surface of the part 10 under the action of the first pressing rod 511 and the second pressing rod 521, so that the part 10 with a smooth and complete surface is obtained. Further, according to the processing requirement of the part 10, the internal shape of the third mold cavity can be changed, and at this time, the two ends of the part 10 can be butted against the second pressure rod 521 in the third mold cavity by overturning.

As shown in fig. 3 and 4, in one embodiment, the step of pressing the part 10 until the part 10 abuts against the punching end of the punching assembly 400 and the punching deformation occurs further includes the steps of: and S310, extruding the part 10 to form a flange. Specifically, according to the processing requirement, sometimes a flange needs to be additionally provided on the part 10, at this time, a flange processing apparatus 600 may be adopted, the flange processing apparatus 600 includes a third pressing body 610 and a fourth pressing body 620, the third pressing body 610 is provided with a third pressing rod 611, and the fourth pressing body 620 is provided with a fourth pressing rod 621. A convex portion 612 is disposed at an end of the third pressing body 610, and when the third pressing rod 611 extends out of the third pressing body 610, the convex portion 612 is sleeved outside the third pressing rod 611. The fourth pressing body 620 is provided with a fourth mold cavity 622, and the inner wall of the fourth mold cavity 622 is stepped, that is, after the part 10 enters the fourth mold cavity 622, the third pressing rod 611 and the fourth pressing rod 621 perform relative extrusion on the part 10, so as to form a target processing hole on the part 10. Meanwhile, after the protrusion 612 extends into the fourth cavity 622, the protrusion 612 presses the part 10 (i.e. presses the part 10 located outside the third pressing rod 611), and the flange processing on the part 10 is realized by the part 10 under the mutual pressing of the protrusion 612 and the cavity wall (the stepped corner of the cavity wall) of the fourth cavity 622.

In one embodiment, for example: the part 10 to be machined is the female end of the copper terminal. According to the processing requirement, the part 10 can be subjected to the working procedures of shaping, punching, flange pressing, through hole (the through hole is processed on the part 10, and the finished part 10 can be subjected to the precise shaping of the bunch flower teeth through the flower tooth shaping device 500 according to the processing requirement) and the like. Meanwhile, each procedure has corresponding processing equipment. In order to automate the machining of the component 10, the component 10 can be transferred from one process to the next by an automated robot.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A part punching device, comprising: the punching mechanism comprises a first pressing mechanism, a second pressing mechanism, a pressing assembly, a punching assembly and a first driving piece, wherein the first pressing mechanism is in abutting fit with the second pressing mechanism, a first die cavity used for installing one part of a part is formed in the abutting end of the first pressing mechanism, a second die cavity used for installing the other part of the part is formed in the abutting end of the second pressing mechanism, the pressing assembly is movably arranged on the first pressing mechanism and is inserted into the first die cavity to be in contact with the part, the punching assembly is arranged on the second pressing mechanism, the size diameter of the punching end of the punching assembly corresponds to the size diameter of the hole required by the part, and the punching end of the punching assembly extends into the second die cavity to be extruded with the part; the pressing assembly comprises a pressing pushing block, a first force transmission piece and a first pressing piece, the first driving piece is connected with the first force transmission piece, the pressing pushing block is movably arranged in the first pressing mechanism, a force application hole is formed in the first pressing mechanism, the first force transmission piece passes through the force application hole and is abutted to the pressing pushing block, the first pressing piece is arranged in the first pressing mechanism, one end of the first pressing piece is connected with the pressing pushing block, and the other end of the first pressing piece is abutted to the part.

2. A hole punching apparatus according to claim 1, wherein said punch assembly includes a punch member and a shoe, said punch member and said shoe being mounted in said second pressing mechanism, one end of said punch member being connected to said shoe, the other end of said punch member being adapted to engage said part in interference therewith.

3. The part punching device according to claim 2, further comprising a pushing assembly, wherein the pushing assembly is movably sleeved outside the punching member, and one end of the pushing assembly extends into the second die cavity to abut against the part.

4. The part punching device according to claim 3, further comprising a second driving member, wherein the pushing assembly comprises a pushing sleeve, a second force transmission member and a second force application member, the pushing sleeve is movably sleeved outside the punching member, one end of the second force transmission member is connected with the pushing sleeve, the other end of the second force transmission member is abutted against the second force application member, and the second force application member is connected with the second driving member.

5. The part punching device according to claim 4, wherein an auxiliary cushion block and an auxiliary gasket are further arranged inside the second pressing mechanism, a movable cavity is formed in the auxiliary cushion block, the auxiliary gasket is movably arranged in the movable cavity, one side of the auxiliary gasket is abutted to the end of the pushing sleeve, and the other end of the auxiliary gasket is abutted to the second force transmission piece.

6. The apparatus of claim 1, further comprising a first abutting portion and a second abutting portion, wherein the first abutting portion is disposed at the abutting end of the first pressing mechanism, and the second abutting portion is disposed at the abutting end of the second pressing mechanism; when the first pressing mechanism is abutted against the second pressing mechanism, the first abutting portion and the second abutting portion are abutted against each other in a fixed correspondence, the first abutting portion is provided with the first die cavity, and the second abutting portion is provided with the second die cavity.

7. A method of punching a part using the apparatus for punching a part according to any one of claims 1 to 6, comprising the steps of:

determining the size of the punching end of the punching assembly according to the aperture of the hole required by the part to be processed;

placing the part in a first mold cavity and a second mold cavity;

pressing the part until the part is abutted against the punching end of the punching assembly and the punching deformation occurs;

and taking out the punched and deformed part from the first die cavity and the second die cavity.

8. The method of punching a part of claim 7, further comprising, prior to the step of placing the part in the first and second die cavities, the steps of: and (4) cutting to obtain parts with specific sizes.

9. The method of punching a part of claim 7, further comprising, prior to the step of placing the part in the first and second die cavities, the steps of: and performing shaping operation on the part.

10. A method of punching a part according to claim 7, wherein the step of pressing the part until the part abuts the punch tip of the punch assembly and the punch deformation occurs is followed by the step of: and extruding the parts to form the flange.