CN113134544B

CN113134544B - Quick die change device

Info

Publication number: CN113134544B
Application number: CN202110416390.0A
Authority: CN
Inventors: 蔡子祥; 魏龙; 梅伟伟; 潘永前
Original assignee: Wuxi Putian Iron Core Co Ltd
Current assignee: Wuxi Putian Iron Core Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2023-05-05
Anticipated expiration: 2041-04-16
Also published as: CN113134544A

Abstract

The present disclosure discloses a quick mold changing device, comprising: the upper die assembly is used for fixing the upper die and adjusting the operation depth of the upper die, the lower die assembly is used for fixing the lower die and adjusting the levelness of the lower die, and the material returning assembly is used for concentrically assembling the upper die and the lower die, so that the upper die and the lower die perform punching operation on the steel sheet. The present disclosure enables quick self-positioning of the upper and lower die assemblies and precise alignment of the upper and lower dies.

Description

Quick die change device

Technical Field

The disclosure belongs to the technical field of iron core transverse shear, and particularly relates to a quick die changing device.

Background

In the prior art, after the electric steel sheet punching die is worn, the die needs to be manually replaced. The manual die change can not be positioned quickly and accurately, and the die position needs to be aligned and adjusted continuously, so that the production period and the production cost of the product are increased. In the alignment debugging process, staff needs to repeatedly fine-tune the position of the lower die because of no reference, the process takes a long time, and the experience of operators is very rich to judge whether the dies are aligned or not. After alignment debugging is finished, in the process of tightening a bolt to fix the lower die, the lower die can displace to a certain extent, so that the upper die and the lower die are difficult to align, the time for installing the die is long, and the die is easy to wear and accelerate even damage directly after equipment is started.

Disclosure of Invention

Aiming at the defects in the prior art, the purpose of the present disclosure is to provide a quick die changing device and a quick die changing method, which can realize the quick self-positioning of an upper die assembly and a lower die assembly and the precise alignment of an upper die and a lower die.

In order to achieve the above object, the present disclosure provides the following technical solutions:

a mold changing apparatus comprising:

an upper die assembly for fixing the upper die and adjusting the working depth of the upper die,

the lower die assembly is used for fixing the lower die and adjusting the levelness of the lower die,

and the material returning assembly is used for concentrically assembling the upper die and the lower die, so that the upper die and the lower die perform punching operation on the steel sheet.

Preferably, the upper die assembly comprises an upper die base, the upper die base is connected with an upper die pressing block, the upper end of the upper die pressing block is connected with an upper die jackscrew, the lower end of the upper die pressing block is connected with an upper die, and the operation depth of the upper die is adjusted by adjusting the upper die jackscrew.

Preferably, the lower die assembly comprises a lower die base, a lower die adapter is arranged on the lower die base, a lower die adapter compression block is arranged on a boss on the lower die adapter, and a circular ring clamping groove is formed at the joint of the lower die adapter compression block and the lower die adapter.

Preferably, through holes are formed in the lower die base and the lower die adapter, lower die positioning rods are arranged in the through holes, the upper end faces of the lower die positioning rods are in contact with the bottom end of the lower die, and the levelness of the lower die is adjusted by adjusting the lower die positioning rods.

Preferably, an anti-collision block is further arranged on the boss on the lower die adapter.

Preferably, the lower die adapter compression block is detachable.

Preferably, the material returning assembly comprises a material returning plate, and the material returning plate is connected with a material returning ring through a clamping groove.

Preferably, the material returning ring comprises an inner ring and an outer ring.

Preferably, the inner ring and the outer ring are concentrically arranged, the diameter of the inner ring is the same as that of the upper punch, and the diameter of the outer ring is the same as that of the lower punch.

Preferably, the apparatus further comprises a calibration bar for calibrating the upper and lower die assemblies.

Compared with the prior art, the beneficial effects that this disclosure brought are:

1. the operation is light, the assembly accuracy of the upper die and the lower die is high, and the configuration efficiency is high.

2. The problems of low labor efficiency, high labor intensity and potential safety hazard existing in manual replacement of the die are solved.

Drawings

Fig. 1 is a schematic structural diagram of a self-positioning quick membrane changing device according to an embodiment of the present disclosure;

fig. 2 (a) to 2 (b) are schematic structural views of an upper mold assembly provided in another embodiment of the present disclosure, wherein fig. 2 (a) is a front view and fig. 2 (b) is a rear view;

fig. 3 (a) to 3 (b) are schematic structural views of a lower mold assembly provided in another embodiment of the present disclosure, wherein fig. 3 (a) is a front view and fig. 3 (b) is a rear view;

FIG. 4 is a front view of a stripper assembly provided by another embodiment of the present disclosure;

FIG. 5 is a schematic illustration of a calibration rod provided in accordance with another embodiment of the present disclosure;

FIGS. 6 (a) through 6 (b) are schematic diagrams of a quick calibration provided by another embodiment of the present disclosure;

the reference numerals in the drawings are as follows:

1. an upper die assembly (1-1, upper die pressing block; 1-2, upper die jackscrew; 1-3, upper die base; etc.); 2. the lower die assembly (2-1, lower die adapter, 2-2, lower die adapter compacting block, 2-3, lower die base, 2-4, lower die positioning rod, 2-5, crashproof block:); 3. the material returning component (3-1, material returning plate; 3-2, material returning ring; 3-3, material pressing block; 3-4, material returning bracket); 4. a calibration rod; 5. an upper punch die; 6. and (5) a lower die.

Detailed Description

Specific embodiments of the present disclosure will be described in detail below with reference to fig. 1 to 6 (b) of the accompanying drawings. While specific embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It should be noted that certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will understand that a person may refer to the same component by different names. The description and claims do not identify differences in terms of components, but rather differences in terms of the functionality of the components. As used throughout the specification and claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description hereinafter sets forth a preferred embodiment for practicing the invention, but is not intended to limit the scope of the invention, as the description proceeds with reference to the general principles of the description. The scope of the present disclosure is defined by the appended claims.

For the purposes of promoting an understanding of the embodiments of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific examples, without the intention of being limiting the embodiments of the disclosure.

In one embodiment, as shown in fig. 1, a mold changing device includes:

an upper die assembly 1 for fixing an upper die 5 and adjusting the working depth of the upper die 5,

a lower die assembly 2 for fixing the lower die 6 and adjusting the levelness of the lower die 6,

and the material returning assembly 3 is used for concentrically assembling the upper die 5 and the lower die 6, so that the upper die 5 and the lower die 6 perform punching operation on the steel sheet.

In the prior art, after the die is replaced, the relative positions of the upper die and the lower die need to be manually adjusted, and the problem that the upper die and the lower die are difficult to align is often caused due to errors caused by manual adjustment, so that the working efficiency is influenced. According to the material returning assembly, the upper stamping die and the lower stamping die can be concentrically assembled in a short time, the problem that the upper stamping die and the lower stamping die are difficult to align in the prior art can be solved, and the operation efficiency is improved.

In another embodiment, as shown in fig. 2 (a) to 2 (b), the upper die assembly includes an upper die base 1-3, the upper die base 1-3 is connected with an upper die pressing block 1-1, the upper end of the upper die pressing block 1-1 is connected with an upper die jackscrew 1-2, the lower end of the upper die pressing block 1-1 is connected with an upper die 5, and the operation depth of the upper die 5 is adjusted by adjusting the upper die jackscrew 1-2.

In this embodiment, the upper die base 1-3 includes a front upper end surface and a front lower end surface, wherein a semicircular groove is provided on the front lower end surface. The upper die base 1-3 is connected with the punch body through a hexagonal bolt, the upper die pressing block 1-1 is connected to the front lower end face of the upper die base 1-3 through a hexagonal bolt, the upper end of the upper die pressing block 1-1 is connected with an upper die jackscrew 1-2 in a threaded mode, the lower end of the upper die pressing block is connected with an upper die 5, when the upper die 5 is worn and shortened, the upper die pressing block 1-1 needs to be detached from the upper die base 1-3 firstly, and then the position of the upper die 5 where the lower die 6 is located extends until the standard length is reached by adjusting the upper die jackscrew 1-2.

In another embodiment, as shown in fig. 3 (a) to 3 (b), the lower die assembly 2 includes a lower die base 2-3, a lower die adapter 2-1 is disposed on the lower die base 2-3, a lower die adapter compression block 2-2 is disposed on a boss of the lower die adapter 2-1, and a circular clamping groove is formed at a connection part between the lower die adapter compression block 2-2 and the lower die adapter 2-1.

In this embodiment, the lower die base 2-3 is a hexahedron with a threaded hole in the middle, the lower die adapter 2-1 is a cuboid with a semicircular opening (the semicircular diameter is the same as the outer diameter of the lower die), the lower die adapter pressing block 2-2 is a cuboid with a semicircular opening (the semicircular diameter is the same as the outer diameter of the lower die), the lower die adapter 2-1 is connected to the upper end surface of the lower die base 2-3 through a hexagonal bolt, and the lower die adapter pressing block 2-2 is connected to the front end surface of the lower die adapter 2-1 through a hexagonal bolt.

In another embodiment, through holes are formed in the lower die base and the lower die adapter, lower die positioning rods are arranged in the through holes, the upper end faces of the lower die positioning rods are in contact with the bottom ends of the lower dies, and the levelness of the lower dies is adjusted by adjusting the lower die positioning rods.

In this embodiment, one end of the lower die positioning rod 2-4 is connected with the bottom of the lower die through the through hole, the other end of the lower die positioning rod 2-4 is connected with a knob, when the lower dies with different sizes need to be replaced or the lower dies are damaged, the lower die adapter compacting block 2-2 is detached from the anti-collision block, the new lower die is placed in the circular groove, and then the lower die positioning rod 2-4 is finely adjusted through the knob until the upper surface of the lower die is parallel to the upper surface of the circular groove.

In another embodiment, an anti-collision block 2-5 is further arranged on the boss on the lower die adapter 2-1.

In this embodiment, as can be seen from fig. 3 (a), the first and second anti-collision blocks are disposed on the boss on the lower die adapter and are disposed on two sides of the lower die adapter compressing block 2-2, respectively, so that the anti-collision blocks can prevent the material from colliding with the lower die adapter during the operation.

In another embodiment, the lower die adapter compression block 2-2 is removable.

In another embodiment, as shown in fig. 4, the material returning assembly includes a material returning plate 3-1, and the material returning plate 3-1 is connected with a material returning ring 3-2 through a clamping groove.

In this embodiment, the material returning plate 3-1 is a cuboid with a U-shaped hole in the middle, and the side surface of the material returning ring 3-2 is provided with a circular tube with a groove. The material returning assembly further comprises a material pressing block 3-3 and a material returning support 3-4, wherein the material returning support 3-4 is an L-shaped body with two long notches formed in the side face of a long end and 2 threaded ports formed in the bottom face of a short end, and the L-shaped body is connected with a punch press body through a hexagon bolt. The material returning plate 3-1 is connected with the short bottom surface of the material returning bracket 3-4 through a hexagon bolt. The material pressing block 3-3 is connected to the lower bottom surface of the material returning plate 3-1 through a hexagon bolt, and the material returning ring 3-2 is connected with the material returning plate 3-1 through a U-shaped clamping groove in the middle of the material returning plate 3-1.

In another embodiment, the stripper ring 3-2 comprises an inner ring and an outer ring.

In another embodiment, the inner ring and the outer ring are concentrically arranged, the diameter of the inner ring is the same as that of the upper die 5, and the diameter of the outer ring is the same as that of the lower die.

In this embodiment, after the lower die is mounted, the material returning ring 3-2 is clamped with the upper die by the inner ring of the material returning ring 3-2, and then the material returning ring 3-2 and the upper die assembly are placed together at the upper end of the lower die, at this time, the outer ring of the material returning ring 3-2 is clamped with the lower die, and since the inner ring and the outer ring are arranged concentrically in this embodiment, the concentric assembly of the upper die and the lower die can be realized by the material returning ring, so that the upper die can accurately fall into the lower die, and thus any material requiring punching including a steel sheet can be implemented to implement accurate punching operation.

In another embodiment, the apparatus further comprises a calibration rod 4 for calibrating the upper die assembly 1 and the lower die assembly 2.

In this embodiment, as shown in fig. 5, the calibration rod 4 is a segmented cylinder with different diameters of upper and lower segments, wherein the diameter of the upper segment cylinder is the same as the outer diameter of the upper die, and the diameter of the lower segment cylinder is the same as the outer diameter of the lower die. As shown in fig. 6 (a) to 6 (b), the upper section of the calibration rod 4 is fixed in the upper die pressing block 1-1, the position of the lower die adapter 2-1 is adjusted so that the lower end of the calibration rod 4 coincides with the circular arc of the lower die adapter 2-1, the lower die adapter 2-1 is fixed, the lower die adapter pressing block 2-2 is locked, the lower die base 2-3 is fixed, and the positioning is completed. And loosening the upper die pressing block 1-1 and the lower die adapter pressing block 2-2, taking out the calibration rod 4, and installing the material returning ring 3-2, the upper die 5 and the lower die 6 to start production.

The basic principles of the present disclosure have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present disclosure are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present disclosure. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not intended to be limited to the details disclosed herein as such.

Claims

1. A quick mold change apparatus comprising:

the lower die assembly comprises a lower die base, a lower die adapter is arranged on the lower die base, a lower die adapter compression block is arranged on a boss on the lower die adapter, and a circular clamping groove is formed at the joint of the lower die adapter compression block and the lower die adapter; through holes are formed in the lower die base and the lower die adapter, a lower die positioning rod is arranged in the through holes, the upper end face of the lower die positioning rod is in contact with the bottom end of the lower die, and the lower die in the circular clamping groove is adjusted by adjusting the lower die positioning rod, so that the upper surface of the lower die is parallel to the upper surface of the circular clamping groove;

the material returning assembly is used for concentrically assembling the upper stamping die and the lower stamping die, so that the upper stamping die and the lower stamping die punch the steel sheet;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the material returning assembly comprises a material returning plate, and the material returning plate is connected with a material returning ring through a clamping groove;

the material returning ring comprises an inner ring and an outer ring;

the inner ring and the outer ring are concentrically arranged, the diameter of the inner ring is the same as that of the upper stamping die, and the diameter of the outer ring is the same as that of the lower stamping die.

2. The apparatus of claim 1, wherein the upper die assembly comprises an upper die base, the upper die base is connected with an upper die tightening block, an upper end of the upper die tightening block is connected with an upper die jackscrew, a lower end of the upper die tightening block is connected with an upper die, and the operation depth of the upper die is adjusted by adjusting the upper die jackscrew.

3. The apparatus of claim 1, wherein an anti-collision block is further provided on a boss on the lower die adapter.

4. The apparatus of claim 1, wherein the lower die adapter compression block is removable.

5. The apparatus of claim 1, further comprising a calibration bar for calibrating the upper and lower die assemblies.