CN114653816B

CN114653816B - Stamping die with accurate side cut effect

Info

Publication number: CN114653816B
Application number: CN202210371278.4A
Authority: CN
Inventors: 赖泽锋; 赖干文; 万好泉
Original assignee: Pengde Precision Technology Shenzhen Co ltd
Current assignee: Pengde Precision Technology Shenzhen Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2023-05-12
Anticipated expiration: 2042-04-08
Also published as: CN114653816A

Abstract

The invention discloses a stamping die with a precise trimming effect, which comprises a lower die, an inner die and an upper die, wherein the lower direction of the upper die is internally reduced to form a mounting part, the bottom surface of the mounting part is provided with a mounting groove, the lower end of the mounting part is internally reduced to form a stamping part, the inner wall surface of the mounting groove is provided with an annular groove, a polishing ring is arranged in the annular groove, the top surface of the lower die is provided with a stamping seat, the lower die is internally provided with a mounting cavity, a driving mechanism for driving the stamping seat to rotate is arranged in the mounting cavity, a cavity is arranged in the stamping seat, and an electromagnet is arranged in the cavity. The metal part pressing device is simple in structure, the metal part to be pressed can be pre-fixed through the electromagnet, the metal part can be completely pressed through the downward-moving inner die, bending or deformation in the middle of the metal part is avoided in the pressing process, the excessive part of the metal part can be rapidly pressed and removed through the downward-pressing upper die, friction can be generated between the rotating metal part and the polishing ring, burrs are rapidly removed, and smoothness of edges is guaranteed.

Description

Stamping die with accurate side cut effect

Technical Field

The invention relates to the technical field of stamping dies, in particular to a stamping die with a precise trimming effect.

Background

Stamping is a press working method in which a material is pressed at room temperature by a die attached to a press to be separated or plastically deformed, thereby obtaining a desired part. Most of the existing hardware products are punched through a punching grinding tool.

The existing stamping part directly performs direct stamping on a metal plate to be stamped through the cooperation of the upper die and the lower die when stamping, and a large number of burrs can appear in the stamping process due to the stretchability of metal, so that the dimension of the stamping part is unstable, and the quality of the stamping part cannot be effectively guaranteed.

Disclosure of Invention

The invention aims to solve the technical problem of providing the stamping die which can be used for pre-fixing, directly compacting and positioning, guaranteeing the stamping stability and rapidly removing burrs and has a precise trimming effect.

The invention is realized by the following technical scheme: the utility model provides a stamping die with accurate side cut effect, including lower mould, centre form and last mould, it sets up in the lower mould upper end to go up the mould, the lower direction of going up the mould is inside to contract and is formed installation department, be equipped with the mounting groove on the bottom surface of installation department, the lower extreme of installation department is inside to contract and is formed stamping part, the centre form sets up in the mounting groove, install the first cylinder that drives the centre form and reciprocate on the top surface of going up the mould, be equipped with the ring channel on the internal face of mounting groove, be equipped with the grinding ring in the ring channel, the top surface of lower mould is just equipped with the mounting hole in the mounting groove department, be equipped with the punching press seat in the mounting hole, be equipped with the installation cavity with the mounting hole intercommunication in the lower mould, install the actuating mechanism that drives the punching press seat rotation in the installation cavity, install the electro-magnet in the cavity, the outer lane protrusion of punching press seat forms annular structure's location portion, location portion is placed on the lower mould.

As the preferable technical scheme, actuating mechanism includes worm, worm wheel, servo motor, first bearing, the second bearing, collecting ring and body, the body is installed in the center department of punching press seat, and communicate with the cavity, first bearing embedded mounting is on the bottom surface of installation cavity, the body lower extreme is installed in the inner circle of first bearing, and outwards extend and set up, the collecting ring is installed in the opening of body lower extreme, install the wire on the electro-magnet input, wire one end is passed the body and is installed on the collecting ring, the bus is installed to the collecting ring other end, the worm wheel is installed in the centre of body, the worm sets up in one side of worm wheel, and with worm wheel meshing connection, the afterbody of servo motor is installed on the installation cavity through shaft coupling and servo motor, the second bearing embedded mounting is on one side of installation cavity, the worm other end is installed in the inner circle of second bearing.

As the preferable technical scheme, a third bearing is embedded on the top surface of the inner die, a first shaft hole is formed in the position, opposite to a piston rod of the first cylinder, of the upper die, and the piston rod of the first cylinder penetrates through the first shaft hole and is arranged in an inner ring of the third bearing.

As the preferred technical scheme, go up the mould top and be equipped with the roof, all be equipped with the locating hole on four angles of going up the mould, all be equipped with the locating lever in the locating hole, the locating lever lower extreme is all installed on the lower mould, and the upper end is all installed on the roof, installs a plurality of second cylinders on the roof, and the roof is equipped with the second shaft hole to the piston rod department of second cylinder, and the piston rod of second cylinder passes the shaft hole and installs on the top surface of last mould.

As the preferable technical scheme, be equipped with the line of polishing on the inner circle face of polishing ring, the inner circle face of polishing ring sets up with the internal face parallel and level of mounting groove, and the fixed part of annular structure is formed to the inside reduction of polishing ring upper end, is equipped with a plurality of first screw holes on the fixed part, and the mounting groove is just to being equipped with the second screw hole in first screw hole department, threaded connection has the screw in first screw hole and the second screw hole.

As a preferable technical scheme, a plurality of bases are arranged on the bottom surface of the lower die.

As the preferable technical scheme, the cross sections of the mounting groove and the stamping seat are all in circular structure.

The beneficial effects of the invention are as follows: the invention has simple structure, the metal piece to be punched can be pre-fixed through the electromagnet, the internal mold can be moved downwards through the first cylinder, the metal piece can be completely pressed through the downwards moved internal mold, the bending or deformation in the middle of the metal piece is avoided in the punching process, the punching stability is ensured, the excessive part of the metal piece can be quickly punched and removed through the downwards pressed upper mold, after the downwards movement is continued, the polishing ring on the upper mold can be contacted with burrs after the metal piece is punched, meanwhile, the punching seat and the metal piece can be driven to rotate through the driving mechanism, and the rotating metal piece can be rubbed with the polishing ring, so that the burrs are quickly removed, and the smoothness of the edges is ensured.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a top view of the lower die of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, 2 and 3, the stamping die with the precise trimming effect comprises a lower die 1, an inner die 3 and an upper die 2, wherein the upper die 2 is arranged at the upper end of the lower die 1, a mounting part 21 is formed by reducing the lower direction of the upper die 2 inwards, a mounting groove is formed in the bottom surface of the mounting part 21, the lower end of the mounting part 21 is reduced inwards to form a stamping part 18, the inner die 3 is arranged in the mounting groove, a first cylinder 5 for driving the inner die to move up and down is arranged on the top surface of the upper die 2, an annular groove is formed in the inner wall surface of the mounting groove, a polishing ring 19 is arranged in the annular groove, a mounting hole is formed in the top surface of the lower die 1 opposite to the mounting groove, a stamping seat 26 is arranged in the mounting hole, a mounting cavity 13 communicated with the mounting hole is formed in the lower die 1, a driving mechanism for driving the stamping seat 26 to rotate is arranged in the mounting cavity 13, a cavity 16 is formed in the stamping seat 26, an electromagnet 17 is arranged in the cavity 16, a positioning part 15 of an annular structure is formed by projecting an outer ring of the stamping seat 26, and the positioning part 15 is placed on the lower die 1.

In this embodiment, the driving mechanism includes a worm 12, a worm wheel 27, a servo motor 7, a first bearing 8, a second bearing 14, a collecting ring 11 and a tube 9, where the tube 9 is installed at the center of the punching seat 26 and is communicated with the cavity 16, the first bearing 8 is embedded on the bottom surface of the installation cavity, the lower end of the tube 9 is installed in the inner ring of the first bearing and extends outwards, the collecting ring 11 is installed in the opening at the lower end of the tube 9, a wire is installed on the input end of the electromagnet 17, one end of the wire passes through the tube and is installed on the collecting ring, the other end of the collecting ring is provided with a bus, the worm wheel 27 is installed in the middle of the tube 9, the worm 12 is arranged on one side of the worm wheel and is meshed with the worm wheel, one end of the worm 12 is fixedly connected with the rotating shaft of the servo motor 7 through a coupling, the tail of the servo motor is installed on the installation cavity, the second bearing 14 is embedded on one side of the installation cavity, and the other end of the worm 12 is installed in the inner ring of the second bearing.

In this embodiment, a third bearing is embedded on the top surface of the inner mold, a first shaft hole is arranged at the position, right opposite to the piston rod of the first cylinder, of the upper mold 2, and the piston rod of the first cylinder 5 passes through the first shaft hole and is arranged in the inner ring of the third bearing.

In this embodiment, the upper die 2 top is equipped with roof 4, all is equipped with the locating hole on four angles of upper die 2, all is equipped with locating lever 23 in the locating hole, and locating lever 23 lower extreme is all installed on lower die 1, and the upper end is all installed on roof 4, installs a plurality of second cylinders 22 on roof 4, and roof 4 is just being equipped with the second shaft hole to the piston rod department of second cylinder, and the piston rod of second cylinder passes the shaft hole and installs on the top surface of upper die 2.

In this embodiment, be equipped with the line of polishing on the inner circle face of polishing ring 19, the inner circle face of polishing ring 19 sets up with the internal wall face parallel and level of mounting groove, the fixed part 25 of annular structure is formed to the inside reduction of polishing ring 19 upper end, be equipped with a plurality of first screw holes on the fixed part 25, the mounting groove is just to first screw hole department is equipped with the second screw hole, threaded connection has screw 24 in first screw hole and the second screw hole, wherein, the polishing ring comprises an arc, as shown in fig. 1, after the inner die moves to the upper end of polishing ring, can stretch into the mounting groove with the spanner, rotate the screw, after the screw is screwed out, an arc can take out from the ring channel, the convenience is changed.

In the embodiment, a plurality of bases are arranged on the bottom surface of the lower die 1; the cross-section of mounting groove and punching press seat 26 all is circular structure setting, and the metalwork punching press of circular structure is adapted to this device, makes punching press seat can rotate in the mounting hole.

When the stamping device is used, firstly, a metal piece to be stamped is placed on a stamping seat, an electromagnet is started, the electromagnet is electrified, the metal piece can be pre-fixed by the magnetic force generated by the electromagnet, then a first cylinder is started, a piston rod of the first cylinder stretches out, the stretching out of the piston rod drives an inner die, the metal piece can be firmly pressed on the stamping seat through the inner die which moves downwards, looseness and movement are avoided, bending or deformation in the middle of the metal piece is avoided in the stamping process, and the stamping stability is ensured;

after the completion, start the second cylinder, make the piston rod of second cylinder outwards stretch out, the extension of piston rod has driven the mould, make the mould follow the stable downward movement of locating lever, after the punching press portion on the last mould contacts with the metalwork, can get rid of the quick punching press of the unnecessary part of metalwork, and after last mould continues the downward movement, the inside ring of polishing of mounting groove can with the deckle edge contact after the metalwork punching press, at this moment, start servo motor, servo motor's start-up has driven the worm, the rotation of worm has driven the worm wheel, the rotation of worm wheel has driven body and punching press seat, the rotation of punching press seat has driven metalwork and centre form, the centre form can use the rotation of third bearing as the center, avoided being blocked, pivoted metalwork can rub with the ring of polishing, thereby quick deckle edge with the metalwork polishes smoothly.

The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. Stamping die with accurate side cut effect, its characterized in that: the automatic grinding device comprises a lower die (1), an inner die (3) and an upper die (2), wherein the upper die (2) is arranged at the upper end of the lower die (1), a mounting part (21) is formed by shrinking the lower part of the upper die (2) inwards, a mounting groove is formed in the bottom surface of the mounting part (21), the lower end of the mounting part (21) is reduced inwards to form a punching part (18), the inner die (3) is arranged in the mounting groove, a first air cylinder (5) for driving the inner die to move up and down is arranged on the top surface of the upper die (2), an annular groove is formed in the inner wall surface of the mounting groove, a grinding ring (19) is arranged in the annular groove, a mounting hole is formed in the top surface of the lower die (1) opposite to the mounting groove, a punching seat (26) is arranged in the mounting hole, a driving mechanism for driving the punching seat (26) to rotate is arranged in the mounting cavity (13), a cavity (16) is formed in the punching seat (26), an electromagnet (17) is arranged in the cavity (16), a positioning part (15) of an outer ring of the punching seat (26) protrudes to form an annular structure, and the positioning part (15) is arranged on the lower die (1);

the driving mechanism comprises a worm (12), a worm wheel (27), a servo motor (7), a first bearing (8), a second bearing (14), a collecting ring (11) and a pipe body (9), wherein the pipe body (9) is arranged at the center of a stamping seat (26) and is communicated with a cavity (16), the first bearing (8) is embedded on the bottom surface of an installation cavity, the lower end of the pipe body (9) is arranged in an inner ring of the first bearing and extends outwards, the collecting ring (11) is arranged in an opening at the lower end of the pipe body (9), a wire is arranged at the input end of an electromagnet (17), one end of the wire penetrates through the pipe body and is arranged on the collecting ring, a bus is arranged at the other end of the collecting ring, the worm wheel (27) is arranged in the middle of the pipe body (9), the worm (12) is arranged at one side of the worm wheel and is meshed with the worm wheel, one end of the worm (12) is fixedly connected with a rotating shaft of the servo motor (7), the tail of the servo motor is arranged on the installation cavity, the second bearing (14) is embedded on one side of the installation cavity, and the other end of the worm (12) is arranged in the second bearing;

a third bearing (6) is embedded on the top surface of the inner die (3), a first shaft hole is formed in the position, opposite to a piston rod of the first cylinder, of the upper die (2), and the piston rod of the first cylinder (5) penetrates through the first shaft hole and is arranged in the inner ring of the third bearing (6);

a top plate (4) is arranged above the upper die (2), positioning holes are formed in four corners of the upper die (2), positioning rods (23) are arranged in the positioning holes, the lower ends of the positioning rods (23) are arranged on the lower die (1), the upper ends of the positioning rods are arranged on the top plate (4), a plurality of second air cylinders (22) are arranged on the top plate (4), second shaft holes are formed in positions, right corresponding to piston rods of the second air cylinders, of the top plate (4), and the piston rods of the second air cylinders penetrate through the shaft holes and are arranged on the top surface of the upper die (2);

the inner ring surface of the polishing ring (19) is provided with polishing lines, the inner ring surface of the polishing ring (19) is flush with the inner wall surface of the mounting groove, the upper end of the polishing ring (19) is internally reduced to form a fixing part (25) of an annular structure, a plurality of first screw holes are formed in the fixing part (25), the mounting groove is provided with second screw holes opposite to the first screw holes, and screws (24) are connected with the first screw holes and the second screw holes in a threaded manner.

2. The stamping die with precise trimming effect according to claim 1, wherein: a plurality of bases are arranged on the bottom surface of the lower die (1).

3. The stamping die with precise trimming effect according to claim 1, wherein: the cross sections of the mounting groove and the punching seat (26) are all in a circular structure.