CN110238277B

CN110238277B - Can replace panel beating stamping die of drift

Info

Publication number: CN110238277B
Application number: CN201810195260.7A
Authority: CN
Inventors: 杨安君
Original assignee: Ningbo Junming Sheet Metal Co ltd
Current assignee: Ningbo Junming Sheet Metal Co ltd
Priority date: 2018-03-09
Filing date: 2018-03-09
Publication date: 2021-01-01
Anticipated expiration: 2038-03-09
Also published as: CN110238277A

Abstract

The invention discloses a sheet metal stamping die with a replaceable punch, which comprises a mounting frame, wherein the top end of the mounting frame is connected with an air cylinder, a piston rod of the air cylinder is connected with a push rod, the push rod penetrates through the top end of the mounting frame and extends to the inside of the mounting frame, a push plate is connected, the middle position of the bottom end of the push plate is connected with an upper die, a cylindrical groove is arranged at the middle position of the bottom end of the upper die, the inner wall of the top end of the groove is connected with first springs with the same structure along the diameter direction of the groove, the inner wall of the groove is connected with four baffles arranged in an annular array, through holes are formed in. The punch pin replacing and installing device is novel in structure, the punch pin can be replaced and installed quickly according to machining requirements, the situation that a sheet metal original piece is not attached to the punch pin and cannot be taken down easily can be guaranteed, sheet metal machining time is effectively saved, and working efficiency is improved.

Description

Can replace panel beating stamping die of drift

Technical Field

The invention relates to the technical field of stamping dies, in particular to a sheet metal stamping die with a replaceable punch.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. The material for making the stamping die comprises steel, hard alloy, steel bonded hard alloy, zinc-based alloy, low-melting point alloy, aluminum bronze, high polymer material and the like. The material for manufacturing the stamping die is mainly made of steel, and the types of the commonly used die working part materials are as follows: carbon tool steel, low alloy tool steel, high carbon high chromium or medium chromium tool steel, medium carbon alloy steel, high speed steel, base steel, and cemented carbide, steel bonded cemented carbide, and the like.

In the use process of the metal plate stamping die, due to the fact that required metal plates are different in shape, the stamping head of the stamping die is required to be replaced frequently, the replacement of the stamping head is complex, much time can be wasted, and after the stamping die punches, the stamping head of the upper die is too large in impact force, so that required metal plates can be attached to the stamping head and cannot be taken down easily.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a sheet metal stamping die with a replaceable punch.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sheet metal stamping die with a replaceable punch comprises a mounting frame, wherein the top end of the mounting frame is connected with an air cylinder, a piston rod of the air cylinder is connected with a push rod, the push rod penetrates through the top end of the mounting frame and extends to the inside of the mounting frame to be connected with a push plate, the bottom middle position of the push plate is connected with an upper die, the bottom middle position of the upper die is provided with a cylindrical groove, the inner wall of the top end of the groove is connected with a first spring with the same structure along the diameter direction of the inner wall, the inner wall of the groove is connected with four baffle plates arranged in an annular array manner, through holes are formed in the baffle plates, the punch head is arranged inside the groove, the top end of the punch head is contacted with the first spring, the top end of the side wall of the punch head is connected with four connecting lugs arranged, and the lateral wall and the through-hole sliding connection of movable block, the bottom inner wall connection of mounting bracket has the lower mould, and the top intermediate position of lower mould is equipped with the cavity, and the top of cavity is equipped with the opening, the inside of mounting bracket is equipped with the threaded rod that two symmetries set up, and the top of lower mould is passed to the bottom of threaded rod to the inside and the lower mould rotation of extending to the lower mould are connected, and the threaded rod lateral wall that is located the lower mould inside is around having the torsional spring, the inside of lower mould is located the cell body that is equipped with the symmetry setting between threaded rod and the cavity, and sliding connection has the magnetic sheet in.

Preferably, the transverse section of the baffle is semicircular and arc-shaped, and the connecting lug is semicircular.

Preferably, the push plate is provided with two threaded holes matched with the threaded rod, and the two threaded holes are symmetrically arranged.

Preferably, the cylinder is installed in the cylinder install bin, and the cylinder install bin is connected with the top of mounting bracket.

Preferably, the side wall of the cavity is provided with two symmetrically arranged rectangular through holes, and the rectangular through holes are matched with the magnetic plate.

Preferably, the lower die is internally provided with a rotating bearing matched with the threaded rod, and the threaded rod is rotatably connected with the rotating bearing.

The invention has the beneficial effects that:

1. the punch is convenient and rapid to install through the upper die, the first spring, the punch, the movable block, the second spring, the connecting lugs, the baffle and the through holes, and time is saved for processing metal plates.

2. Through the setting of threaded rod, magnetic sheet, lower mould, cavity, torsional spring, cell body for the panel beating original paper after the punching press is pull down from the drift more easily, avoids it to lead to the difficult trouble of pulling down of panel beating original paper because drift impact pressure is too big.

Therefore, the punch can be replaced and installed quickly according to the machining requirements, the condition that the original sheet metal part is not attached to the punch and is not easy to take off can be guaranteed, the sheet metal machining time is effectively saved, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a sheet metal stamping die with a replaceable punch head according to the present invention;

fig. 2 is a schematic structural diagram of a in fig. 1 of a sheet metal stamping die with a replaceable punch according to the present invention;

fig. 3 is a schematic structural diagram of a sheet metal stamping die B in fig. 1, in which a punch is replaceable;

fig. 4 is a schematic top view of a lower die of a sheet metal stamping die with a replaceable punch according to the present invention;

fig. 5 is a schematic view of a connection structure between an upper die and a punch of the sheet metal stamping die with a replaceable punch provided by the invention.

In the figure: the device comprises a cylinder 1, a push plate 2, a threaded rod 3, a magnetic plate 4, a lower die 5, a cavity 6, an upper die 7, an installation frame 8, a first spring 9, a punch 10, a movable block 11, a second spring 12, a connecting lug 13, a torsion spring 14, a groove body 15, a baffle 16 and a through hole 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a sheet metal stamping die with replaceable punches comprises a mounting frame 8, a cylinder 1 is connected to the top end of the mounting frame 8, a piston rod of the cylinder 1 is connected with a push rod, the push rod penetrates through the top end of the mounting frame 8 and extends to the inside of the mounting frame 8 to be connected with a push plate 2, an upper die 7 is connected to the middle position of the bottom end of the push plate 2, a cylindrical groove is arranged at the middle position of the bottom end of the upper die 7, a first spring 9 with the same structure is connected to the inner wall of the top end of the groove along the diameter direction of the inner wall, four baffles 16 arranged in an annular array are connected to the inner wall of the groove, through holes 17 are formed in the baffles 16, a punch 10 is arranged inside the groove, the top end of the punch 10 is in contact with the first spring 9, four connecting lugs 13 arranged in an annular array are connected, the bottom of movable block 11 and the top of baffle 16 are connected in a sliding manner, and the lateral wall of movable block 11 and through-hole 17 are connected in a sliding manner, the bottom inner wall of mounting bracket 8 is connected with lower mould 5, the top intermediate position of lower mould 5 is provided with cavity 6, the top of cavity 6 is provided with an opening, two threaded rods 3 symmetrically arranged are arranged inside mounting bracket 8, the bottom of threaded rod 3 passes through the top of lower mould 5 and extends to the inside of lower mould 5 to be rotationally connected with lower mould 5, the lateral wall of threaded rod 3 positioned inside lower mould 5 is wound with torsion spring 14, slot bodies 15 symmetrically arranged between threaded rod 3 and cavity 6 are arranged inside lower mould 5, magnetic plates 4 are slidably connected in slot bodies 15, one side of magnetic plates 4 far away from cavity 6 is connected with torsion spring 14, the transverse section of baffle 16 has semicircular and arc-shaped arrangement, connecting lugs 13 are arranged in a semicircular shape, and push plate 2 is provided, and two screw holes are the symmetry setting, and cylinder 1 installs in the cylinder install bin, and the cylinder install bin is connected with the top of mounting bracket 8, and the lateral wall of cavity 6 is equipped with the rectangle through-hole that two symmetries set up, and the rectangle through-hole cooperatees with magnetic sheet 4, and the inside of lower mould 5 is equipped with and is connected with 3 complex rolling bearing of threaded rod, and threaded rod 3 and rolling bearing rotate.

When the invention is used, if the punch 10 needs to be installed, the punch 10 is placed in the cavity of the upper die 7, then the movable block 11 is pressed to extrude the second spring 12, the punch 10 is rotated to drive the connecting lug 13 to rotate, the connecting lug 13 drives the second spring 12 and the movable block 11 to rotate, the movable block 11 slides on the side wall of the top end of the baffle 16, when the movable block slides to the through hole 17, the second spring 12 restores to the original state, the movable block 11 enters the through hole 17, the punch 10 is fixed, then the cylinder 1 is started, the cylinder 1 drives the push plate 2, the upper die 7 and the punch 10 to move towards the lower die 5, when the movable block slides to a certain position, the threaded rod 3 enters the threaded hole on the push plate 2, the cylinder 1 continues to push, the push plate 2 continues to move downwards, so that the threaded rod 3 rotates, the torsion spring 14 is driven by the threaded rod 3 to be tightened, and drive magnetic sheet 4 and slide in cell body 15, magnetic sheet 4 keeps away from cavity 6, then drift 10 gets into and carries out the compression molding to the panel beating original paper in the cavity 6, after the compression molding finishes, cylinder 1 drives push pedal 2, go up mould 7, drift 10 is reverse motion, so make 3 reversals of threaded rod, 14 reconversion of torsional spring, magnetic sheet 4 gets back to the original position again, adsorb the panel beating after the compression molding, drift 10 continues the upward movement simultaneously, ensure that drift 10 separates more easily with the panel beating original paper after the compression molding.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The sheet metal stamping die with the replaceable punch comprises a mounting frame (8) and is characterized in that the top end of the mounting frame (8) is connected with a cylinder (1), a piston rod of the cylinder (1) is connected with a push rod, the push rod penetrates through the top end of the mounting frame (8) and extends to the inside of the mounting frame (8) to be connected with a push plate (2), the middle position of the bottom end of the push plate (2) is connected with an upper die (7), the middle position of the bottom end of the upper die (7) is provided with a cylindrical groove, the inner wall of the top end of the groove is connected with a first spring (9) with the same structure along the diameter direction of the inner wall, the inner wall of the groove is connected with four baffles (16) arranged in an annular array, through holes (17) are formed in the baffles (16), a punch (10) is arranged inside the groove, the top end of the punch (10) is contacted, the bottom of the connecting lug (13) is connected with a second spring (12), the bottom of the second spring (12) is connected with a movable block (11), the bottom of the movable block (11) is connected with the top of a baffle (16) in a sliding manner, the side wall of the movable block (11) is connected with a through hole (17) in a sliding manner, the bottom inner wall of the mounting rack (8) is connected with a lower die (5), the middle position of the top end of the lower die (5) is provided with a cavity (6), the top end of the cavity (6) is provided with an opening, two symmetrically arranged threaded rods (3) are arranged inside the mounting rack (8), the bottom end of each threaded rod (3) penetrates through the top end of the lower die (5) and extends to the inside of the lower die (5) to be connected with the lower die (5) in a rotating manner, the side wall of the threaded rod (3) positioned inside the lower die (5) is wound with a torsion spring (14), the inside of, the magnetic plate (4) is connected in the groove body (15) in a sliding manner, and one side, far away from the cavity (6), of the magnetic plate (4) is connected with the torsion spring (14); punch (10) are placed in the cavity of upper die (7), then press movable block (11), make it extrude second spring (12), and rotate punch (10), make punch (10) drive engaging lug (13) and rotate, and make engaging lug (13) drive second spring (12) and movable block (11) and rotate, make movable block (11) slide on the top lateral wall of baffle (16), when sliding to through-hole (17) department, second spring (12) reconversion makes movable block (11) get into in through-hole (17), fix punch (10) from this.

2. The sheet metal stamping die with the replaceable punch head as claimed in claim 1, wherein the baffle (16) is semicircular and arc-shaped in cross section, and the connecting lug (13) is semicircular.

3. The sheet metal stamping die with the replaceable punch pin as claimed in claim 1, wherein the push plate (2) is provided with two threaded holes matched with the threaded rod (3), and the two threaded holes are symmetrically arranged.

4. The sheet metal stamping die with the replaceable punch head as claimed in claim 1, wherein the cylinder (1) is mounted in a cylinder mounting box, and the cylinder mounting box is connected with the top end of the mounting frame (8).

5. The sheet metal stamping die with the replaceable punch head as claimed in claim 1, wherein the side wall of the cavity (6) is provided with two symmetrically arranged rectangular through holes, and the rectangular through holes are matched with the magnetic plate (4).

6. The sheet metal stamping die with the replaceable punch as claimed in claim 1, wherein a rotary bearing matched with the threaded rod (3) is arranged inside the lower die (5), and the threaded rod (3) is rotatably connected with the rotary bearing.