CN112719072A

CN112719072A - Stamping die capable of replacing stamping die head and operation method

Info

Publication number: CN112719072A
Application number: CN202110122101.6A
Authority: CN
Inventors: 段懿珊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-04-30

Abstract

The invention discloses a stamping die for replacing a stamping die head and an operation method thereof, and the stamping die comprises a lower die, a pair of first mounting blocks which are connected with the upper end surface of the lower die in a sliding manner, a second knob which is connected with the side surface of the lower die in a rotating manner, a pair of first cushion blocks which are fixedly arranged on the upper end surfaces of the two first mounting blocks, a pair of female dies which are detachably arranged on the upper end surface of the first cushion blocks, an upper die which is arranged right above the lower die, a pair of first guide rods which are arranged between the upper die and the lower die, a pair of second mounting blocks which are connected with the lower end surface of the upper die in a sliding manner, a first knob which is connected with the side surface of the upper die in a rotating manner, a pair of second cushion blocks which are fixedly arranged on the lower end surfaces of. The replaceable stamping die head is reasonable in design, the stamping die head can be replaced, and the distance between the stamping dies can be adjusted according to the specification of a workpiece.

Description

Stamping die capable of replacing stamping die head and operation method

Technical Field

The invention relates to the technical field related to mechanical dies, in particular to a stamping die for replacing a stamping die head and an operation method.

Background

As is known, a mold is a tool for molding an article, the tool having various parts, and different molds being formed of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The tool is used for making a blank into a finished piece with a specific shape and size under the action of external force in blanking, forming stamping, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like.

Found through the retrieval, application number CN 201921431992.8's utility model discloses a stamping device of removable stamping die head, including the punching press platform, the bottom fixedly connected with support frame of punching press platform, the rear side fixedly connected with stamping device body at punching press bench top, the bottom of punching device body front side is provided with the connecting cylinder, the slip ring has been cup jointed to the bottom of connecting cylinder. This stamping device of removable stamping die head has guaranteed the accurate installation of stamping die head through reference column and locating hole cooperation, has improved the change efficiency of stamping die head, and joint piece and L groove fit have realized the preliminary installation of stamping die head, need not always to hold the stamping die head in the installation when having guaranteed certain installation intensity, have saved a large amount of physical power.

The utility model with application number CN201922458295.8 provides a stamping die with a replaceable stamping die head, which comprises a placing plate, a fixed block, a cylinder, an insert rod, a connecting plate, a replaceable die frame, a clamping plate structure, a protective cover, an adjustable collecting box structure, a tool box, a supporting tube, a telescopic rod, an adjusting bolt, a base, an anti-skid pad and a control switch, wherein the fixed block is welded on the left side of the upper surface of the placing plate; the cylinder is connected to the right side of the upper surface of the fixed block through a bolt; the inserted bar is inserted at the right side of the cylinder; the connecting plate is connected to the right side of the inserted link through a bolt; the replaceable die frame is connected to the right side of the connecting plate through bolts.

Application number CN 201920878401.5's utility model discloses a stamping die of removable stamping die head, stamping die includes upper die base and die holder, the upper die base below can be dismantled and be connected with the die holder, fixed surface is connected with the connecting block under the upper die base, T type groove has been seted up to connecting block inside, the spout has all been seted up to T type groove both sides inner wall, T type groove top integrated into one piece has the stopper, the shrinkage pool has been seted up on the stopper surface, the inside adhesion of shrinkage pool has the magnetic sheet. The utility model discloses the slider slides with the spout and links to each other, can effectually reduce the frictional force between fixture block and the T type groove, pegs graft through projection and shrinkage pool and link to each other, and projection one end is laminated mutually with the magnetic sheet simultaneously, inhales through the magnetism and tentatively fixes the fixture block, and the installation on next step of being convenient for is fixed, and countersunk screw one end links up mutually with the screw hole that connecting block bottom surface was seted up, simple structure, and the hedging pressure head of being convenient for is dismantled and is installed.

However, most of the stamping heads and stamping seats of the existing stamping dies are fixed on the dies, and when different stamping parts need to be stamped, different stamping dies need to be replaced to stamp the stamping parts, so that the workload is increased, and the stamping efficiency is reduced.

Disclosure of Invention

Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a stamping die and an operation method thereof, wherein the stamping die head is replaced, the stamping die head can be replaced, and the stamping die spacing can be adjusted according to the specification of the workpiece.

The invention is realized by constructing a stamping die for replacing a stamping die head; the stamping die comprises a lower die;

the stamping die also comprises a pair of first mounting blocks which are connected with the upper end surface of the lower die in a sliding manner;

the stamping die further comprises a second knob which is rotatably connected to the side surface of the lower die; the second knob is rotated, and the first mounting block slides linearly; the moving directions of the two first mounting blocks are opposite;

the stamping die also comprises a pair of first cushion blocks which are fixedly arranged on the upper end surfaces of the two first mounting blocks;

the stamping die also comprises a pair of female dies which are detachably arranged on the upper end surface of the first cushion block;

the upper die is arranged right above the lower die;

the stamping die also comprises a pair of first guide rods, and the first guide rods are arranged between the upper die and the lower die; the upper die is connected with the first guide rod in a sliding manner; the lower die is connected with the first guide rod in a sliding manner;

the stamping die further comprises a pair of second mounting blocks which are connected to the lower end face of the upper die in a sliding manner;

the stamping die further comprises a first knob which is rotatably connected to the side surface of the upper die; rotating the first knob and linearly moving the second mounting block; the moving directions of the two second mounting blocks are opposite;

the stamping die also comprises a pair of second cushion blocks which are fixedly arranged on the lower end surfaces of the two second mounting blocks;

the stamping die also comprises a pair of male dies which are detachably arranged on the lower end surfaces of the two second cushion blocks;

the stamping die further comprises a connecting rod fixedly arranged on the upper end face of the upper die.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; and a blanking hole communicated with the forming groove in the female die is processed in the first cushion block, a discharge chute which inclines downwards towards the outer side of the first mounting block is processed on the upper end surface of the first mounting block, and the discharge chute is communicated with the blanking hole.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; and a second guide rod is fixedly mounted on the upper end surface of the first cushion block, and a guide hole matched with the second guide rod is processed on the second cushion block.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; the lower die is characterized in that a first cavity is formed in the lower die, a first lead screw is arranged in the first cavity, the first lead screw is rotatably connected with the lower die, one end of the first lead screw penetrates through the side face of the lower die and is connected with a second knob, a pair of first sliding nuts are in threaded connection with the first lead screw, the thread turning directions of the two first sliding nuts are opposite, a pair of first sliding plates are further arranged in the first cavity and are connected with a first mounting block, and the first sliding plates are kept connected with the first sliding nuts through first connecting pieces.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; a first guide rail is arranged in the first cavity, and the first sliding plate is connected with the first guide rail in a sliding mode through a first sliding block.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; the upper die is internally provided with a second cavity, a second lead screw is arranged in the second cavity, the second lead screw is rotatably connected with the upper die, one end of the second lead screw penetrates through the side surface of the upper die and is connected with a first knob, a pair of second sliding nuts are in threaded connection with the second lead screw, the thread turning directions of the two second sliding nuts are opposite, a pair of second sliding plates are further arranged in the second cavity and are connected with a second mounting block, and the second sliding plates are connected with the second sliding nuts through second connecting pieces.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; a second guide rail is arranged in the second cavity, and the second sliding plate is connected with the second guide rail in a sliding mode through a pair of sliding blocks.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; the first guide rod is sleeved with a spring.

As an improvement of the above technical solution, the stamping die of the stamping die head is replaced; scales are arranged on the first knob and the second knob.

An operation method of replacing the stamping die of the stamping die head as described above; during replacement operation, the female die is kept connected with the first cushion block through the bolt, the female die can be detached and replaced by loosening the bolt, the male die is kept connected with the second cushion block through the bolt, the male die can be detached and replaced by loosening the bolt, the first knob and the second knob are screwed, and the distance between the two female dies and the distance between the two male dies are adjusted; the upper end face of the first cushion block is fixedly provided with a second guide rod, a guide hole matched with the second guide rod is processed in the second cushion block, the movement track of the female die and the male die can be corrected, and the movement precision is improved.

The invention has the following advantages: the present invention provides a press die for replacing a press die head by improving, as shown in fig. 1 to 7, it can be implemented as follows; the method has the following improvements and advantages;

the stamping die comprises a lower die, a pair of first mounting blocks which are connected with the upper end face of the lower die in a sliding mode, a second knob which is connected with the side face of the lower die in a rotating mode and rotates, the first mounting blocks slide linearly, and the moving directions of the two first mounting blocks are opposite; the stamping die also comprises a pair of first cushion blocks fixedly arranged on the upper end faces of the two first mounting blocks, a pair of female dies detachably arranged on the upper end faces of the first cushion blocks, an upper die arranged right above the lower die, a pair of first guide rods arranged between the upper die and the lower die, the upper die in sliding connection with the first guide rods, the lower die in sliding connection with the first guide rods, a pair of second mounting blocks in sliding connection with the lower end faces of the upper die, a first knob rotationally connected to the side face of the upper die, a first knob rotating to linearly move the second mounting blocks, the two second mounting blocks in opposite moving directions, a pair of second cushion blocks fixedly arranged on the lower end faces of the two second mounting blocks, and a pair of male dies detachably arranged on the lower end faces of the two second cushion blocks, the stamping die further comprises a connecting rod fixedly arranged on the upper end face of the upper die.

The implementation process of the invention is as follows; the female die is connected with the first cushion block through the bolt, the female die can be detached to be replaced when the bolt is loosened, similarly, the male die is connected with the second cushion block through the bolt, the male die can be detached to be replaced when the bolt is loosened, the first knob and the second knob are screwed, and the distance between the two female dies and the distance between the two male dies are adjusted. The invention has reasonable design, the female die and the male die are detachably connected with the template, the female die and the male die are convenient to replace, the stamping efficiency can be improved, the female die and the male die slide linearly by rotating the first knob and the second knob, and the stamping distance can be conveniently adjusted according to the specification of parts.

And 3, blanking holes communicated with the forming grooves in the female die are formed in the first cushion block, a discharge chute which inclines downwards to the outer side of the first mounting block is formed in the upper end surface of the first mounting block, the discharge chute is communicated with the blanking holes, and punched waste falls into the discharge chute from the blanking holes and slides out, so that discharging is facilitated, and the female die is prevented from being blocked.

And 4, a second guide rod is fixedly arranged on the upper end surface of the first cushion block, and a guide hole matched with the second guide rod is processed on the second cushion block, so that the movement tracks of the female die and the male die can be corrected, and the movement precision is improved.

According to the invention, a first cavity is arranged in the lower die, a first lead screw is arranged in the first cavity, the first lead screw is rotatably connected with the lower die, one end of the first lead screw penetrates through the side surface of the lower die and is connected with a second knob, a pair of first sliding nuts are in threaded connection with the first lead screw, the thread turning directions of the two first sliding nuts are opposite, a pair of first sliding plates are further arranged in the first cavity, the first sliding plates are connected with a first mounting block, and the first sliding plates are kept connected with the first sliding nuts through a first connecting piece.

And 6, a first guide rail is arranged in the first cavity, and the first sliding plate is connected with the first guide rail in a sliding mode through a first sliding block. And when the second knob is screwed, the first screw rod rotates to drive the first sliding nut to linearly move, and the first sliding plate connected with the first sliding nut slides along with the first sliding nut to drive the first mounting block to move along the direction of the first guide rail.

And 7, according to the invention, a second cavity is arranged in the upper die, a second lead screw is arranged in the second cavity, the second lead screw is rotatably connected with the upper die, one end of the second lead screw penetrates through the side surface of the upper die and is connected with the first knob, a pair of second sliding nuts are in threaded connection with the second lead screw, the thread turning directions of the two second sliding nuts are opposite, a pair of second sliding plates are also arranged in the second cavity, the second sliding plates are connected with the second mounting block, and the second sliding plates are connected with the second sliding nuts through second connecting pieces.

And 8, a second guide rail is arranged in the second cavity, and the second sliding plate is connected with the second guide rail in a sliding mode through a pair of sliding blocks. The first knob is screwed, the second screw rod rotates to drive the second sliding nut to move linearly, and the second sliding plate connected with the second sliding nut slides along with the second sliding nut to drive the second mounting block to move along the direction of the second guide rail.

9, the first guide rod is sleeved with a spring; scales are arranged on the first knob and the second knob.

Drawings

FIGS. 1 to 3 are schematic structural views of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3 of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view C-C of FIG. 4 of the present invention;

fig. 7 is a cross-sectional view D-D of fig. 2 of the present invention.

Wherein: 1. a lower die; 2. an upper die; 3. a connecting rod; 4. a first guide bar; 5. a first mounting block; 6. a discharge chute; 7. a first cushion block; 8. a female die; 9. a second guide bar; 10. a male die; 11. a second cushion block; 12. a second mounting block; 13. a first knob; 14. a second knob; 15. a first cavity; 16. a second cavity; 17. a first lead screw; 18. a first slip nut; 19. a first sliding plate; 20. a first connecting member; 21. a first guide rail; 22. a first slider; 23. a second lead screw; 24. a second slip nut; 25. a second connecting member; 26. a second guide rail; 27. a second slider; 28. a second sliding plate.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 7, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention provides a press die for replacing a press die head by improving, as shown in fig. 1 to 7, it can be implemented as follows; the stamping die comprises a lower die 1, a pair of first mounting blocks 5 which are connected with the upper end surface of the lower die 1 in a sliding mode, a second knob 14 which is connected with the side surface of the lower die 1 in a rotating mode and rotates the second knob 14, the first mounting blocks 5 slide linearly, and the moving directions of the two first mounting blocks 5 are opposite; the stamping die further comprises a pair of first cushion blocks 7 fixedly arranged on the upper end surfaces of the two first mounting blocks 5, a pair of female dies 8 detachably arranged on the upper end surfaces of the first cushion blocks 7, an upper die 2 arranged right above the lower die 1, a pair of first guide rods 4 arranged between the upper die 2 and the lower die 1, the upper die 2 in sliding connection with the first guide rods 4, the lower die 1 in sliding connection with the first guide rods 4, a pair of second mounting blocks 12 in sliding connection with the lower end surfaces of the upper die 2, a first knob 13 rotatably connected to the side surface of the upper die 2, a first knob 13 rotated, a second mounting block 12 in linear motion, the motion directions of the two second mounting blocks 12 are opposite, and a pair of second cushion blocks 11 fixedly arranged on the lower end surfaces of the two second mounting blocks 12, the stamping die further comprises a pair of male dies 10 which are detachably arranged on the lower end faces of the second cushion blocks 11, and the stamping die further comprises a connecting rod 3 which is fixedly arranged on the upper end face of the upper die 2.

The implementation process of the invention is as follows; the female die 8 is kept connected with the first cushion block 7 through the bolts, the female die 8 can be detached and replaced when the bolts are loosened, similarly, the male die 10 is kept connected with the second cushion block 11 through the bolts, the male die 10 can be detached and replaced when the bolts are loosened, the first knob 13 and the second knob 14 are screwed, and the distance between the two female dies 8 and the distance between the two male dies 10 are adjusted. The invention has reasonable design, the female die and the male die are detachably connected with the template, the female die and the male die are convenient to replace, the stamping efficiency can be improved, the female die and the male die slide linearly by rotating the first knob and the second knob, and the stamping distance can be conveniently adjusted according to the specification of parts.

In the embodiment of the invention, blanking holes communicated with the forming grooves in the female die 8 are processed in the first cushion block 7, the upper end surface of the first mounting block 5 is provided with the discharge chute 6 which inclines downwards to the outer side of the first mounting block 5, the discharge chute 6 is communicated with the blanking holes, and punched waste falls into the discharge chute 6 from the blanking holes and slides out, so that the material can be discharged conveniently, and the female die 8 is prevented from being blocked.

In the embodiment of the invention, the second guide rod 9 is fixedly installed on the upper end surface of the first cushion block 5, and the second cushion block 12 is provided with the guide hole matched with the second guide rod 9, so that the movement tracks of the female die 8 and the male die 10 can be corrected, and the movement precision is improved.

In the embodiment of the present invention, a first cavity 15 is disposed in the lower die 1, a first lead screw 17 is disposed in the first cavity 15, the first lead screw 17 is rotatably connected to the lower die 1, one end of the first lead screw passes through the side surface of the lower die 1 and is connected to the second knob 14, a pair of first sliding nuts 18 are threadedly connected to the first lead screw 17, the thread directions of the two first sliding nuts 18 are opposite, a pair of first sliding plates 19 are further disposed in the first cavity 15, the first sliding plates 19 are connected to the first mounting block 5, and the first sliding plates 19 are connected to the first sliding nuts 18 through first connecting members 20.

In the present embodiment, a first guide rail 21 is disposed in the first cavity 15, and the first sliding plate 19 is slidably connected to the first guide rail 21 through a first sliding block 22. When the second knob 14 is screwed, the first lead screw 17 rotates to drive the first sliding nut 18 to move linearly, and the first sliding plate 19 connected with the first sliding nut slides along with the first sliding nut to drive the first mounting block 5 to move along the direction of the first guide rail 21.

In the embodiment of the present invention, a second cavity 16 is disposed in the upper die 2, a second lead screw 23 is disposed in the second cavity 16, the second lead screw 23 is rotatably connected to the upper die 2, one end of the second lead screw penetrates through the side surface of the upper die 2 and is connected to the first knob 13, a pair of second sliding nuts 24 are threadedly connected to the second lead screw 23, the thread directions of the two second sliding nuts 18 are opposite, a pair of second sliding plates 28 are further disposed in the second cavity 16, the second sliding plates 28 are connected to the second mounting block 12, and the second sliding plates 28 are connected to the second sliding nuts 24 through second connecting members 25.

In the present embodiment, a second guide rail 26 is disposed in the second cavity 16, and the second sliding plate 28 is slidably connected to the second guide rail 26 through a pair of sliding blocks 27. When the first knob 13 is screwed, the second lead screw 23 rotates to drive the second sliding nut 24 to move linearly, and the second sliding plate 28 connected with the second sliding nut slides along with the second sliding nut to drive the second mounting block 12 to move along the direction of the second guide rail 26.

In the embodiment of the present invention, the first guiding rod 4 is sleeved with a spring.

In the embodiment of the present invention, scales are provided on the first knob 13 and the second knob 14.

The invention has the following improvements and advantages;

it 1, the present invention provides a press die for replacing a press die head by improving, as shown in fig. 1 to 7, it can be implemented as follows; the stamping die comprises a lower die 1, a pair of first mounting blocks 5 which are connected with the upper end surface of the lower die 1 in a sliding mode, a second knob 14 which is connected with the side surface of the lower die 1 in a rotating mode and rotates the second knob 14, the first mounting blocks 5 slide linearly, and the moving directions of the two first mounting blocks 5 are opposite; the stamping die further comprises a pair of first cushion blocks 7 fixedly arranged on the upper end surfaces of the two first mounting blocks 5, a pair of female dies 8 detachably arranged on the upper end surfaces of the first cushion blocks 7, an upper die 2 arranged right above the lower die 1, a pair of first guide rods 4 arranged between the upper die 2 and the lower die 1, the upper die 2 in sliding connection with the first guide rods 4, the lower die 1 in sliding connection with the first guide rods 4, a pair of second mounting blocks 12 in sliding connection with the lower end surfaces of the upper die 2, a first knob 13 rotatably connected to the side surface of the upper die 2, a first knob 13 rotated, a second mounting block 12 in linear motion, the motion directions of the two second mounting blocks 12 are opposite, and a pair of second cushion blocks 11 fixedly arranged on the lower end surfaces of the two second mounting blocks 12, the stamping die further comprises a pair of male dies 10 which are detachably arranged on the lower end faces of the second cushion blocks 11, and the stamping die further comprises a connecting rod 3 which is fixedly arranged on the upper end face of the upper die 2.

In the embodiment of the invention, the first cushion block 7 is internally provided with a blanking hole communicated with the forming groove in the female die 8, the upper end surface of the first mounting block 5 is provided with a discharge chute 6 which inclines downwards to the outer side of the first mounting block 5, the discharge chute 6 is communicated with the blanking hole, and the punched waste material falls into the discharge chute 6 from the blanking hole and slides out, so that the material can be discharged conveniently, and the female die 8 is prevented from being blocked.

In the embodiment of the invention, the second guide rod 9 is fixedly installed on the upper end surface of the first cushion block 5, and the guide hole matched with the second guide rod 9 is processed on the second cushion block 12, so that the movement tracks of the female die 8 and the male die 10 can be corrected, and the movement precision is improved.

In the embodiment of the present invention, a first cavity 15 is disposed in the lower die 1, a first lead screw 17 is disposed in the first cavity 15, the first lead screw 17 is rotatably connected to the lower die 1, one end of the first lead screw passes through the side surface of the lower die 1 and is connected to the second knob 14, a pair of first sliding nuts 18 are in threaded connection with the first lead screw 17, the thread directions of the two first sliding nuts 18 are opposite, a pair of first sliding plates 19 are further disposed in the first cavity 15, the first sliding plates 19 are connected to the first mounting block 5, and the first sliding plates 19 are connected to the first sliding nuts 18 through first connecting members 20.

6, in the embodiment of the present invention, a first guide rail 21 is disposed in the first cavity 15, and the first sliding plate 19 is slidably connected to the first guide rail 21 through a first sliding block 22. When the second knob 14 is screwed, the first lead screw 17 rotates to drive the first sliding nut 18 to move linearly, and the first sliding plate 19 connected with the first sliding nut slides along with the first sliding nut to drive the first mounting block 5 to move along the direction of the first guide rail 21.

In the embodiment of the present invention, a second cavity 16 is disposed in the upper die 2, a second lead screw 23 is disposed in the second cavity 16, the second lead screw 23 is rotatably connected to the upper die 2, one end of the second lead screw passes through the side surface of the upper die 2 and is connected to the first knob 13, a pair of second sliding nuts 24 are in threaded connection with the second lead screw 23, the thread directions of the two second sliding nuts 18 are opposite, a pair of second sliding plates 28 are further disposed in the second cavity 16, the second sliding plates 28 are connected to the second mounting block 12, and the second sliding plates 28 are connected to the second sliding nuts 24 through second connecting members 25.

In the embodiment of the present invention, a spring is sleeved on the first guide rod 4; scales are arranged on the first knob 13 and the second knob 14.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stamping die for replacing a stamping die head is characterized in that; the stamping die comprises a lower die (1);

the stamping die also comprises a pair of first mounting blocks (5) which are connected with the upper end surface of the lower die (1) in a sliding manner;

the stamping die further comprises a second knob (14) which is rotatably connected to the side surface of the lower die (1); the second knob (14) is rotated, and the first mounting block (5) slides linearly; the moving directions of the two first mounting blocks (5) are opposite;

the stamping die also comprises a pair of first cushion blocks (7) which are fixedly arranged on the upper end surfaces of the two first mounting blocks (5);

the stamping die also comprises a pair of female dies (8) which are detachably arranged on the upper end surface of the first cushion block (7);

the upper die (2) is arranged right above the lower die (1);

the stamping die also comprises a pair of first guide rods (4) which are arranged between the upper die (2) and the lower die (1); the upper die (2) is connected with the first guide rod (4) in a sliding manner; the lower die (1) is connected with the first guide rod (4) in a sliding manner;

the stamping die also comprises a pair of second mounting blocks (12) which are connected to the lower end surface of the upper die (2) in a sliding manner;

the stamping die further comprises a first knob (13) which is rotatably connected to the side surface of the upper die (2); the first knob (13) is rotated, and the second mounting block (12) moves linearly; the moving directions of the two second mounting blocks (12) are opposite;

the stamping die also comprises a pair of second cushion blocks (11) which are fixedly arranged on the lower end surfaces of the two second mounting blocks (12);

the stamping die also comprises a pair of male dies (10) which are detachably arranged on the lower end surfaces of the two second cushion blocks (11);

the stamping die further comprises a connecting rod (3) which is fixedly arranged on the upper end face of the upper die (2).

2. A stamping die for changing stamping die heads as claimed in claim 1, wherein; the first cushion block (7) is internally provided with a blanking hole communicated with the forming groove in the female die (8), the upper end face of the first mounting block (5) is provided with a discharge chute (6) which inclines downwards towards the outer side of the first mounting block (5), and the discharge chute (6) is communicated with the blanking hole.

3. A stamping die for changing a stamping die head according to claim 1 or 2, wherein; and a second guide rod (9) is fixedly mounted on the upper end surface of the first cushion block (5), and a guide hole matched with the second guide rod (9) is processed on the second cushion block (12).

4. A stamping die for changing stamping die heads as claimed in claim 1, wherein; what is needed is

A first cavity (15) is arranged in the lower die (1), a first lead screw (17) is arranged in the first cavity (15), the first lead screw (17) is rotatably connected with the lower die (1), one end of the first lead screw penetrates through the side face of the lower die (1) and is connected with a second knob (14), a pair of first sliding nuts (18) are in threaded connection with the first lead screw (17), the thread turning directions of the two first sliding nuts (18) are opposite, a pair of first sliding plates (19) are further arranged in the first cavity (15), the first sliding plates (19) are connected with the first mounting block (5), and the first sliding plates (19) are kept connected with the first sliding nuts (18) through first connecting pieces (20).

5. A stamping die for changing stamping die heads as claimed in claim 4, wherein; a first guide rail (21) is arranged in the first cavity (15), and the first sliding plate (19) is connected with the first guide rail (21) in a sliding mode through a first sliding block (22).

6. A stamping die for changing stamping die heads as claimed in claim 1, wherein; a second cavity (16) is arranged in the upper die (2), a second lead screw (23) is arranged in the second cavity (16), the second lead screw (23) is rotatably connected with the upper die (2), one end of the second lead screw penetrates through the side face of the upper die (2) and is connected with the first knob (13), a pair of second sliding nuts (24) is in threaded connection with the second lead screw (23), the thread turning directions of the two second sliding nuts (18) are opposite, a pair of second sliding plates (28) are further arranged in the second cavity (16), the second sliding plates (28) are connected with the second mounting block (12), and the second sliding plates (28) are connected with the second sliding nuts (24) through second connecting pieces (25).

7. A stamping die for changing stamping die heads as claimed in claim 1, wherein; a second guide rail (26) is arranged in the second cavity (16), and the second sliding plate (28) is connected with the second guide rail (26) in a sliding mode through a pair of sliding blocks (27).

8. A stamping die for changing stamping die heads as claimed in claim 1, wherein; the first guide rod (4) is sleeved with a spring.

9. A stamping die for changing stamping die heads as claimed in claim 1, wherein; scales are arranged on the first knob (13) and the second knob (14).

10. A method of operating a press die for changing a head of a press die as set forth in claim 1, wherein; during replacement operation, the female die (8) is kept connected with the first cushion block (7) through a bolt, the female die (8) can be detached and replaced by loosening the bolt, and similarly, the male die (10) is kept connected with the second cushion block (11) through the bolt, the male die (10) can be detached and replaced by loosening the bolt, the first knob (13) and the second knob (14) are screwed, and the distance between the two female dies (8) and the distance between the two male dies (10) are adjusted; a second guide rod (9) is fixedly arranged on the upper end surface of the first cushion block (5), a guide hole matched with the second guide rod (9) is processed on the second cushion block (12), and the female die (8) can be aligned

The movement track of the punch (10) is corrected, and the movement precision is improved.