CN113477817A

CN113477817A - Stamping device

Info

Publication number: CN113477817A
Application number: CN202110689596.0A
Authority: CN
Inventors: 陈峥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-10-08

Abstract

The invention discloses a punching device which comprises a first fixed plate, a first sliding plate, a second sliding plate, a third fixed plate and a second fixed plate which are sequentially arranged in parallel from top to bottom, wherein at least one pair of guide pillars are commonly inserted into the third fixed plate in the first sliding plate and the second sliding plate, the upper end and the lower end of each guide pillar are respectively and fixedly connected with the first fixed plate and the second fixed plate, the first sliding plate and the second sliding plate are in sliding fit with the guide pillars, the third fixed plate is fixedly connected with the guide pillars, a fixed die is fixedly connected between at least one pair of guide pillars, the upper end of the fixed die is provided with a punching groove, and a jacking mechanism is arranged in the punching groove. Has the advantages that: according to the invention, the two ends of the workpiece are elastically compressed, the tilting of the two ends of the workpiece is inhibited, the stamping process is not influenced, the stamped workpiece is gradually separated from the stamping groove by the first vertical rod which is gradually jacked upwards and the stamping plate which is jacked upwards, the stamping quality is high, and the stamping efficiency is high.

Description

Stamping device

Technical Field

The invention relates to the technical field of stamping, in particular to a stamping device.

Background

The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size.

The existing stamping device generally comprises an upper die and a lower die, a workpiece is placed at the upper end of the lower die, the upper die is pressed down by a press, and the lower die is separated from the lower die after press forming.

To solve the above problems, we propose a punching apparatus.

Disclosure of Invention

The present invention is directed to a press apparatus for solving the problems of the related art.

In order to achieve the purpose, the invention adopts the following technical scheme: a punching device comprises a first fixed plate, a first sliding plate, a second sliding plate, a third fixed plate and a second fixed plate which are sequentially arranged in parallel from top to bottom, wherein at least one pair of guide pillars are commonly inserted into the third fixed plate in the first sliding plate and the second sliding plate, the upper ends and the lower ends of the guide pillars are respectively fixedly connected with the first fixed plate and the second fixed plate, the first sliding plate, the second sliding plate and the guide pillars are in sliding fit, the third fixed plate is fixedly connected with the guide pillars, a fixed die is fixedly connected between the at least one pair of guide pillars, a punching groove is formed in the upper end of the fixed die, a jacking mechanism is arranged in the punching groove, a workpiece is arranged at the upper end of the punching groove, a second vertical rod is symmetrically and vertically inserted in the punching groove in a sliding manner, a second spring is movably sleeved on the second vertical rod, and the lower end of the second spring is fixedly connected with the second vertical rod, The upper end of the first vertical rod is abutted against the fixed die, a rolling ball is movably embedded at the lower end of the second vertical rod, a double-shaft motor is embedded in the second sliding plate, an upper output end of the double-shaft motor is fixedly connected with a cylindrical cam, the rolling ball is in rolling connection with the upper surface of the cylindrical cam, a threaded rod is fixedly connected with the lower output end of the double-shaft motor, a threaded hole in threaded connection with the threaded rod is formed in the third fixing plate, a second hydraulic device is fixedly installed at the lower end of the first fixing plate, the lower end of the second hydraulic device is fixedly connected with the upper end of the first sliding plate, a movable die is fixedly connected with the lower end of the first fixing plate, a first vertical rod is inserted in the first sliding plate in a symmetrical sliding mode relative to the movable die, a first limiting plate is fixedly connected with the upper end of the first vertical rod, a first spring is movably sleeved on the first vertical rod, and the upper end and the lower end of the first spring are respectively connected with the first limiting plate, The first sliding plate is fixedly connected, and a pressing mechanism is arranged at the lower end of the first vertical rod.

In the punching device, the jacking mechanism comprises a first hydraulic device embedded at the bottom end in the punching groove, and the output end of the first hydraulic device is fixedly connected with a jacking plate.

In the above-described press device, a flat bearing is connected between the second slide plate and the cylindrical cam.

In the punching device, the lower end of the threaded rod is fixedly connected with a second limiting plate.

In the punching device, the pressing mechanism comprises a pressing plate fixed at the lower end of the first vertical rod.

In the punching device, the pressing mechanism comprises a bottom box fixed at the lower end of the first vertical rod, and a plurality of pressing rollers are connected to the inner walls of the two sides of the bottom box in an equidistance rotating manner.

Compared with the prior art, the stamping device has the advantages that:

1. in the process of pressing the first sliding plate downwards, the second hydraulic device enables the pressing plate/the pressing rollers to be in contact with the two ends of the workpiece firstly, the two ends of the workpiece are restrained from tilting upwards under the action of the first spring/the second spring, the two ends of the workpiece can translate towards the middle under the premise of elastic pressing, and normal stamping cannot be influenced;

2. after punching is finished, the double-shaft motor synchronously drives the cylindrical cam and the threaded rod to rotate, the double-shaft motor can drive the double-shaft motor and the second sliding plate to slide upwards in the process of driving the threaded rod to rotate, the heights of the second sliding plate and the cylindrical cam are gradually increased, the cylindrical cam can intermittently lift the first vertical rods upwards in the rotating process, the two first vertical rods can alternately lift the punched workpiece upwards to weaken the tightness between the workpiece and the punching groove gradually, and on the other hand, the first hydraulic device also synchronously lifts the punching plate upwards to lift the punching part of the workpiece out of the punching groove so as to demold the workpiece and also facilitate cleaning of metal scraps generated by punching the workpiece;

3. according to the invention, the two ends of the workpiece are elastically compressed, the tilting of the two ends of the workpiece is inhibited, the stamping process is not influenced, the stamped workpiece is gradually separated from the stamping groove by the first vertical rod which is gradually jacked upwards and the stamping plate which is jacked upwards, the stamping quality is high, and the stamping efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a stamping apparatus according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

fig. 4 is a schematic structural diagram of a bottom box of a stamping apparatus according to the present invention.

In the figure: the device comprises a first fixing plate 1, a second fixing plate 2, a guide pillar 3, a fixed die 4, a stamping groove 5, a stamping plate 6, a first hydraulic device 7, a jacking plate 8, a workpiece 9, a second hydraulic device 10, a first sliding plate 11, a movable die 12, a first vertical rod 13, a first limiting plate 14, a first spring 15, a pressing plate 16, a third fixing plate 17, a second sliding plate 18, a double-shaft motor 19, a threaded rod 20, a cylindrical cam 21, a second vertical rod 22, a second spring 23, a rolling ball 24, a bottom box 25 and a pressing roller 26.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

Referring to fig. 1-4, a stamping device comprises a first fixed plate 1, a first sliding plate 11, a second sliding plate 18, a third fixed plate 17 and a second fixed plate 2 which are sequentially arranged in parallel from top to bottom, at least one pair of guide pillars 3 are commonly inserted in the third fixed plate 17 in the first sliding plate 11 and the second sliding plate 18, the upper and lower ends of each guide pillar 3 are respectively and fixedly connected with the first fixed plate 1 and the second fixed plate 2, the first sliding plate 11 and the second sliding plate 18 are in sliding fit with the guide pillars 3, the third fixed plate 17 is fixedly connected with the guide pillars 3, a fixed die 4 is fixedly connected between the at least one pair of guide pillars 3, a stamping groove 5 is arranged at the upper end of the fixed die 4, a jacking mechanism is arranged in the stamping groove 5, a workpiece 9 is arranged at the upper end of the stamping groove 5, second vertical rods 22 are symmetrically and vertically inserted in the fixed die 4 in a sliding manner with respect to the stamping groove 5, second springs 23 are movably sleeved on the second vertical rods 22, the lower end of the second spring 23 is fixedly connected with a second vertical rod 22, the upper end of the second spring is abutted against the fixed die 4, the lower end of the second vertical rod 22 is movably embedded with a rolling ball 24, a double-shaft motor 19 is embedded in the second sliding plate 18, the upper output end of the double-shaft motor 19 is fixedly connected with a cylindrical cam 21, the cylindrical cam 21 is circular when viewed from above, and is curved when viewed from the side, the rolling ball 24 is in rolling connection with the upper surface of the cylindrical cam 21, so that the loss generated by the friction resistance between the first vertical rod 13 and the cylindrical cam 21 is reduced, the lower output end of the double-shaft motor 19 is fixedly connected with a threaded rod 20, a threaded hole in threaded connection with the threaded rod 20 is formed in the third fixing plate 17, a second hydraulic device 10 is fixedly installed at the lower end of the first fixing plate 1, the lower end of the second hydraulic device 10 is fixedly connected with the upper end of the first sliding plate 11, and a movable die 12 is fixedly connected with the lower end of the first fixing plate 1, first montant 13 is inserted in the first sliding plate 11 in relation to movable mould 12 symmetry slip, the upper end fixedly connected with first limiting plate 14 of first montant 13, first spring 15 has been cup jointed in the activity on the first montant 13, and the upper and lower both ends of first spring 15 respectively with first limiting plate 14, first sliding plate 11 fixed connection, the lower extreme of first montant 13 is equipped with hold-down mechanism.

The jacking mechanism comprises a first hydraulic device 7 embedded at the bottom end in the stamping groove 5, the output end of the first hydraulic device 7 is fixedly connected with a jacking plate 8, the first hydraulic device 7 can adopt a pulse hydraulic cylinder besides a common telescopic hydraulic cylinder, and the first hydraulic device can also adopt a pulse hydraulic cylinder to protrude upwards into the stamping plate 6 in a pulse mode.

The plane bearing is connected between the second sliding plate 18 and the cylindrical cam 21 together to share the supporting pressure of the upper end of the double-shaft motor 19 on the cylindrical cam 21, so that the connection point between the double-shaft motor 19 and the cylindrical cam 21 is prevented from being broken, and the service life is prolonged.

The lower end of the threaded rod 20 is fixedly connected with a second limiting plate, so that the threaded rod 20 is prevented from being separated from the third fixing plate 17 due to the work of the double-shaft motor 19.

The pressing mechanism comprises a pressing plate 16 fixed at the lower end of the first vertical rod 13, and a flat plate is adopted to press the workpiece 9.

The working principle of the embodiment is as follows:

the workpiece 9 is placed at the upper end of the stamping groove 5, the upper end of the second vertical rod 22 is flush with the upper end surface of the fixed die 4, and it should be noted that the first spring 15 is slightly compressed in the initial state, and the height of the lower end of the pressure plate 16 is lower than that of the lower end surface of the movable die 12;

in the process that the second hydraulic device 10 pushes the first sliding plate 11 downwards, the two pressing plates 16 will contact with both ends of the workpiece 9 first, before the movable die 12 contacts with the upper end surface of the workpiece 9, the first sliding plate 11 will descend relative to the first vertical rod 13, so as to stretch the first spring 15 to a certain length, the movable die 12 will continue to press downwards after contacting with the middle part of the workpiece 9, in the process of pressing downwards, the lower end of the first spring 15 will continue to be stretched, because when both ends of the workpiece 9 are tilted upwards, the upper end of the first spring 15 will be driven to be pulled upwards by the pressing plates 16, the first vertical rod 13 and the first limiting plate 14, the first spring 15 is made of a high-strength spring, so as to suppress the tilting tendency of both ends of the workpiece 9 to a certain extent, in the process of punching the workpiece 9, the middle part of the workpiece is sunk into the punching groove 5 to drive both ends of the workpiece to move towards the middle part, in this embodiment, the first spring 15 is used to elastically press the workpiece 9, without excessively hindering the displacement of the workpiece 9.

After the punching operation is finished, the second hydraulic device 10 drives the first sliding plate 11 to ascend, the pressing plate 16 is reset under the elastic potential energy released by the first spring 15, the double-shaft motor 19 and the first hydraulic device 7 are started simultaneously, on one hand, the double-shaft motor 19 synchronously drives the cylindrical cam 21 and the threaded rod 20 to rotate, because the third fixing plate 17 is fixedly arranged and the second sliding plate 18 is arranged in a sliding manner, the double-shaft motor 19 drives the double-shaft motor 19 and the second sliding plate 18 to slide upwards in the process of driving the threaded rod 20 to rotate, the heights of the second sliding plate 18 and the cylindrical cam 21 are gradually increased, meanwhile, the cylindrical cam 21 intermittently lifts the first vertical rods 13 upwards in the rotating process, the two first vertical rods 13 alternately lift the punched workpiece 9 upwards to weaken the tightness between the punched workpiece 9 and the punching groove 5 gradually, on the other hand, the first hydraulic device 7 also synchronously lifts the pressing plate 6 upwards, the punching part of the workpiece 9 is pushed out of the punching groove 5 so as to be convenient for demoulding, and simultaneously, the metal scraps generated by punching the workpiece 9 are also convenient to clean.

Example 2

The present embodiment is different from embodiment 1 in that: the pressing mechanism comprises a bottom box 25 fixed at the lower end of the first vertical rod 13, a plurality of pressing rollers 26 are connected to the inner walls of the two sides of the bottom box 25 in an equidistant rotating mode, the pressing rollers 26 can rotate along with the movement of the workpiece 9, and mechanical loss generated in a rolling friction mode is small.

The working principle of this embodiment is basically the same as that of embodiment 1, and the difference is that: the pressing rollers 26 are in contact with two ends of the upper side wall of the workpiece 9, the workpiece 9 is also elastically pressed by the first spring 15, and the two ends of the workpiece 9 are in rolling contact with the pressing rollers 26 in the process of displacement towards the direction of the punching groove 5 in the punching process of the workpiece 9, so that mechanical loss caused by large friction force between the two is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A punching device is characterized by comprising a first fixed plate (1), a first sliding plate (11), a second sliding plate (18), a third fixed plate (17) and a second fixed plate (2) which are sequentially arranged in parallel from top to bottom, wherein at least one pair of guide pillars (3) are commonly inserted in the third fixed plate (17) in the first sliding plate (11) and the second sliding plate (18), the upper end and the lower end of each guide pillar (3) are respectively fixedly connected with the first fixed plate (1) and the second fixed plate (2), the first sliding plate (11) and the second sliding plate (18) are in sliding fit with the guide pillars (3), the third fixed plate (17) is fixedly connected with the guide pillars (3), a fixed die (4) is fixedly connected between at least one pair of the guide pillars (3), a punching groove (5) is formed in the upper end of the fixed die (4), and a jacking mechanism is arranged in the punching groove (5), a workpiece (9) is placed on the upper end of the stamping groove (5), a second vertical rod (22) is inserted in the fixed die (4) in a manner of symmetrical vertical sliding of the stamping groove (5), a second spring (23) is movably sleeved on the second vertical rod (22), the lower end of the second spring (23) is fixedly connected with the second vertical rod (22), the upper end of the second spring is abutted against the fixed die (4), a rolling ball (24) is movably embedded at the lower end of the second vertical rod (22), a double-shaft motor (19) is embedded in the second sliding plate (18), a cylindrical cam (21) is fixedly connected with the upper output end of the double-shaft motor (19), the rolling ball (24) is connected with the upper surface of the cylindrical cam (21) in a rolling manner, a threaded rod (20) is fixedly connected with the lower output end of the double-shaft motor (19), and a threaded connection threaded hole is formed in the third fixing plate (17) and is in threaded connection with the threaded rod (20), the lower extreme fixed mounting of first fixed plate (1) has second hydraulic means (10), the lower extreme of second hydraulic means (10) and the upper end fixed connection of first sliding plate (11), the lower extreme fixedly connected with movable mould (12) of first fixed plate (1), it is equipped with first montant (13) to slide about movable mould (12) symmetry in first sliding plate (11) and insert, the first limiting plate (14) of upper end fixedly connected with of first montant (13), first spring (15) have been cup jointed in the activity on first montant (13), and the upper and lower both ends of first spring (15) respectively with first limiting plate (14), first sliding plate (11) fixed connection, the lower extreme of first montant (13) is equipped with hold-down mechanism.

2. A stamping device as claimed in claim 1, characterised in that the jacking mechanism comprises a first hydraulic device (7) embedded in the bottom end of the stamping slot (5), the output end of the first hydraulic device (7) being fixedly connected with a jacking plate (8).

3. A press device according to claim 1, characterised in that a flat bearing is jointly connected between the second slide plate (18) and the cylindrical cam (21).

4. A punching device according to claim 1, wherein a second stop plate is fixedly connected to the lower end of the threaded rod (20).

5. A press device as claimed in claim 1, characterised in that the pressing means comprise a pressing plate (16) secured to the lower end of the first upright (13).

6. A punching device according to claim 1, characterized in that the pressing means comprise a bottom box (25) fixed to the lower end of the first vertical bar (13), and that a plurality of pressing rollers (26) are rotatably connected to the inner walls of the bottom box (25) at equal intervals.