CN212976433U

CN212976433U - Punching die

Info

Publication number: CN212976433U
Application number: CN202021849262.2U
Authority: CN
Inventors: 刘小伟
Original assignee: Guangzhou Jinloushan Machinery Equipment Co ltd
Current assignee: Guangzhou Jinloushan Machinery Equipment Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-16
Anticipated expiration: 2030-08-28

Abstract

The embodiment of the application provides a cut-out press has installed a drift subassembly in the mould and has realized the demountable installation of drift, and the drift subassembly includes mounting panel, mount pad and drift, and mount pad, mounting panel are through the mode of pin and die holder realization can dismantle the connection, and the drift is through the limit structure who opens up on the mount pad and the mount pad realization can dismantle the connection. The installation and the disassembly are very simple and convenient, the installation is flexible, and the problem of complex procedures caused by the need of opening up grooves and installation flanges in the prior art is solved. Simultaneously, this application embodiment still guarantees the stability of finished piece in the middle of the stamping process through devices such as leading positive frame, baffle, has improved the success rate of finished piece.

Description

Punching die

Technical Field

The application relates to the field of dies, in particular to a punching die.

Background

In order to punch a hole on a product, a punch is generally required to be installed on a die, in the prior art, a groove is directly formed on a groove and the punch is directly installed in the groove, when the punch is required to be installed at a different position, the groove needs to be newly formed in the die, the process is complicated, the disassembly is not easy, and the punch is easy to incline.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present application provide a punching die that allows for changing the position of a punch or installing multiple punches without creating a recess again. Meanwhile, the punch is very easy to disassemble.

The application provides a punching die, which comprises a die holder and a punch assembly;

the punch assembly comprises a mounting seat, a mounting plate and a punch;

the mounting seat is detachably connected with the die holder through the mounting plate;

the punch is detachably connected with the mounting seat.

In the implementation process, the die holder is not directly provided with the punch, but is installed by taking the installation seat as an intermediate connecting piece, and no groove needs to be formed in the die holder. The mounting seat and the die holder are detachably connected with the die through a mounting plate as an intermediate connecting piece, and the punch is detachably connected with the mounting seat; when dismantling, with drift and mount pad direct separation can, it is convenient to dismantle, also need not additionally to open up recess etc. at the manufacturing die holder, the process is convenient.

Furthermore, a first fixing hole is formed in the mounting seat;

the mounting panel with the mount pad contacts one side and opens up the breach, the breach is located first fixed orifices below, with first fixed orifices forms limit structure.

In the implementation process, the punch can penetrate out of the mounting seat through the first fixing hole formed in the mounting seat, the mounting seat has a certain height, and one part of the punch is arranged in the mounting seat, so that the stability of the punch is improved, and the punch is not prone to tilting in the punching process. The gap is formed below the first fixing hole, so that the limiting structure is formed together with the fixing hole. In the installation process, the top of the punch can penetrate into the first fixing hole from the notch and penetrate out from the top of the installation seat without using fixing modes such as welding and the like.

Furthermore, the bottom of the punch is provided with a protruding part along the periphery, and the area of the protruding part is larger than that of the first fixing hole.

In the implementation process, the punch is arranged in the installation process from the notch on the installation seat is penetrated into the first fixing hole, the bottom of the punch forms a clamping relation with the first fixing hole, so that the punch is detachably connected with the installation seat, other standard parts are not needed for assistance, the debugging and the maintenance of the die are facilitated, and the working efficiency is improved.

Optionally, the punch assembly further comprises a coarse punch;

the thick drift includes drift shell and bottom plate, the drift shell with bottom plate welded connection, the drift shell cover is established on the drift, the bottom plate with mount pad demountable installation.

In the implementation process, in order to punch a hole with a larger area on a workpiece, the punch can be modified on the basis of the original punch. The thick punch is modified on the basis of the original punch, the punch is connected with the mounting seat by the aid of the mounting plate, so that the thick punch and the punch are integrated, flexible assembly is achieved, materials are saved, the process of disassembling the mounting seat again when the thick punch is mounted is omitted, and working efficiency is improved.

Further, the die holder comprises an upper die holder and a lower die holder, guide pillars are further arranged at two ends of the top and the bottom in the lower die holder, the upper die holder is provided with a guide sleeve, a stroke limiting block is arranged on the guide sleeve, and the upper die holder and the lower die holder are connected with the guide sleeve through the guide pillars.

In the implementation process, the guide pillar extends into the guide sleeve before the die is closed, so that the upper die holder is matched with the lower die holder, and the stroke limiting block on the guide sleeve limits the stroke of the upper die holder, so that the punch is accurately positioned at the corresponding position of a workpiece.

Further, the upper die base is provided with a guide frame.

In the implementation process, the guide frame ensures that the workpiece cannot shift in the stamping process, the workpiece can shift in the die due to unbalanced stress, and the guide frame can be mounted at different positions according to specific stress conditions.

Further, the upper die is provided with a nitrogen spring.

In the implementation process, the nitrogen spring provides the function of blank pressing force on one hand, and reduces the pressure of the upper die base to the lower die base in the placing process of the die on the other hand, so that the service life of the manufactured part is prolonged, and the manufactured part is protected.

Furthermore, a partition plate is arranged on the lower die base.

In the implementation process, the stroke limiting block is assisted by the partition plate, so that the upper die base and the lower die base are effectively matched.

Furthermore, two ends of the top of the lower die holder and two ends of the ground step are provided with pressure plates.

In the implementation process, the workpiece is fixed by the pressure plate before stamping. The workpiece can be displaced due to impact in the pet process, the edge of the workpiece is fixed below the pressure plate before stamping, and the workpiece cannot be displaced due to excessive impact force in the stamping process after stamping.

Further, a damping device is installed at the top of the guide pillar.

In the implementation process, the damping device can reduce the pressure of the upper die base on the lower die base. The die is generally heavy, the top of the guide pillar directly contacts with the upper die holder in the process that the guide pillar extends into the guide sleeve, the whole stamping process is long, if a vibration device is not added or reduced, the upper die holder can be sunken, the upper die holder and the lower die holder are matched, and the success rate of a finished piece is finally influenced.

The utility model provides a useful part lies in providing a detachable installation drift structure in cut-out press, makes the drift through can dismantling with the mount pad to be connected, and the mount pad can be dismantled with the die holder and be connected, and then the drift with the connection can be dismantled to the die holder, has improved and has seen work efficiency. Simultaneously, this application still guarantees the coincidence of mould through means such as guide pillar and guide pin bushing journey, control block and baffle, improves the success rate of finished piece.

Drawings

FIG. 1 is a schematic view of an upper die base;

FIG. 2 is a schematic view of a lower die holder;

FIG. 3 is a schematic view of a mount;

FIG. 4 is a schematic view of a mounting plate;

FIG. 5 is a schematic view of a punch;

FIG. 6 is a schematic view of a coarse punch;

fig. 7 is a schematic view of the installation of the coarse punch.

Marking: 110-an upper die holder; 111-a guide frame; 112-a separator; 113 guide sleeve; 120-a lower die holder; 121-nitrogen spring; 122-polyurethane; 123-a material pressing plate; 200-a punch assembly; 210-a mount; 220-a mounting plate; 2111-first fixation hole; 2112-gap; 230-a punch; 231-a projection; 240-coarse punch; 241-a punch housing; 242-a backplane;

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the stamping of a die, it is often necessary to make holes in the part. The punching die needs to install a punch in the die, and in the prior art, the punch is usually installed by punching in the die, or the flange is installed on the die first and then the punch is installed on the flange. The first mode adds the process in the middle of the process of manufacturing the die holder, and the second installation mode punch is easy to bend after the stamping process is long, so the application provides a punching die.

Referring to fig. 1, a punching die provided for an embodiment of the present application includes a die holder and a punch assembly 200; punch assembly 200 includes a mount 210, a mounting plate 220, and a punch 230; the mounting base 210 is detachably connected with the die holder through the mounting plate 220; the punch is detachably connected with the mounting seat.

The punch 230 is detachably connected with the die holder through the mounting seat, so that the die is conveniently mounted and debugged, when the die is dismounted and mounted, the punch can be firstly mounted on the base, and then the base is mounted on the die holder through screws. When the detachable cover needs to be detached, the screw is unscrewed and the base is removed. Because the base is installed through the mode of screw, it is not complicated to have opened up the screw on the die holder, consequently can suitably open up the mount pad on the die holder, installs the drift as required, and is very simple. In the drawing, the mounting seat, the mounting plate and the die holder are directly connected through screws, so that the dismounting is very convenient.

Referring to fig. 3 and 4, in one possible embodiment, to achieve the removable mounting of the punch, the mounting seat is opened with a first fixing hole 2111; a notch 2112 is formed in one side, which contacts the mounting plate 220, of the mounting seat 210, and the notch is located below the first fixing hole 2111 and forms a limiting structure with the first fixing hole.

First fixed orifices can leave the space for the drift, and the drift wears to locate the stability that can consolidate the drift in the first fixed orifices to realize the stable connection of drift and mount pad, the jump of area is realized to the breach of first fixed orifices below, has formed limit structure, can mutually support with the drift from what make drift and mount pad together fixed.

In one possible embodiment, see fig. 5, to enable the cooperation of the punch with the stop structure, a detachable mounting between the punch and the mounting seat is thereby achieved. The punch bottom is provided with a convex part 231 along the periphery, and the area of the convex part 231 is larger than that of the first fixing hole 2111.

The drift wears to establish into first fixed orifices and the first fixed orifices is worn to establish from first fixed orifices bottom, the position of breach promptly, and what expose outside mount pad outside the drift realized is the function of punching a hole, and the drift is located the part of first fixed orifices and has increased the stability of drift, the not easy slope of drift in the middle of the punching press process. The bulge and the limit structure of drift bottom mutually support, make drift and mount pad realize demountable installation, and when the drift wore out first fixed orifices from the bottom, bottom and first fixed orifices formed the screens relation, had restricted the circumferential direction removal of drift.

In order to allow the punch assembly to perform different sized holes and to allow more flexibility in the manner of installation, in one possible embodiment the punch assembly further comprises a coarse punch 240;

referring to fig. 6, the coarse punch includes a punch housing 241 and a bottom plate 242, the punch housing is welded to the bottom plate, the punch housing is sleeved on the punch, and the bottom plate is detachably mounted on the mounting seat.

Referring to fig. 7, a punch sleeve is sleeved on the basis of the original punch, the area of the original punch is increased, and the whole punch assembly can complete punching with a larger area. In order to further enable the whole formed by the punch sleeve and the original punch to be stable, a bottom plate is arranged on the punch sleeve and can be detachably arranged with the punch sleeve. In a possible embodiment, additional fixing holes may be formed in the mounting seat, and the bottom plate and the mounting seat may be connected together by screws. The die is convenient to disassemble during debugging and installation, and the working efficiency is improved.

In order to ensure the stability of the die holder, in a possible embodiment, guide pillars and guide sleeves may be installed on the upper die holder and the lower die holder, referring to fig. 1 and 2, the guide pillars are installed at the bottom and both ends of the bottom of the lower die holder 120, the upper die holder 110 is provided with the guide sleeves, the guide sleeves are provided with forming stoppers, and the upper die holder 110 and the lower die holder 120 are connected with the guide sleeves through the guide pillars to form a pressing cavity.

The punching die has high requirements on the stability of the upper die holder and the lower die holder, in the punching process, the guide pillar on the upper die holder 110 extends into the guide sleeve on the lower die holder 120 during die assembly, so that all the positions are ensured to be matched, the stability is improved, the limit block formed on the guide sleeve can limit the strokes of the guide pillar and other parts, and the insert blocks and the parts of the whole die are ensured to be perfectly matched.

In a possible embodiment, the lower die holder 120 is provided with a guide frame 111 in order to keep the piece from being cheap when punching.

The punching die uses a punch to punch a hole in a product, sometimes the position of the punched hole is not symmetrical relative to the product, the product may shift during punching, and the guide frame 111 may limit the position of the product during punching. When the die is mounted, the positions and the number of the guide frames 111 are determined according to the positions of the holes and the shapes of the products.

In one possible embodiment, to reduce the pressure of the upper die base 110 on the lower die base 120 during the die-preventing process, the upper die base 110 is provided with a nitrogen spring 121.

The weight of the die holder is large, if the upper die holder 110 is placed for a long time, the lower die holder 120 can be extruded, and after the die is damaged, the nitrogen spring 121 can reduce the pressure of the upper die holder 110 on the lower die holder 120. Also, nitrogen spring 121 may provide a hold-down during the stamping process.

In one possible embodiment, the lower die base 120 is further provided with a spacer 112 to ensure that the product is not excessively compressed by the upper die base.

In a possible embodiment, the lower die holder 120 is further provided with a pressure plate 123 at the top end and the bottom end.

During the stamping process, the workpiece may shift, and the workpiece is fixed under the pressing plate 123 in advance to prevent the workpiece from shifting.

In one possible embodiment, to extend the life of the mold, polyurethane 122 is mounted on top of the guide posts. The polyurethane belongs to a damping device, has the function of providing elasticity, can reduce the extrusion of the guide pillar to the guide sleeve, and essentially reduces the extrusion of the upper die holder 110 to the lower die holder 120.

To sum up, the application provides a cut-out press has utilized a drift subassembly among the cut-out press, and the subassembly includes the mount pad, mounting panel and drift, realizes the demountable installation of drift, has solved and has needed mounting flange among the prior art, sets up the process complicated problem that recess etc. lead to, can also assemble the drift in a flexible way, has improved work efficiency. Meanwhile, the device for improving the stability of the workpiece further comprises an adjusting frame, a pressure plate and the like, a guide pillar and a guide sleeve are further installed, the upper die base and the lower die base are guaranteed to be matched, finally, the nitrogen spring, a damping device and the like are further utilized to reduce the extrusion of the upper die base on the lower die base, and the service life of the die is prolonged.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A punching die is characterized by comprising a die holder and a punch assembly;

the punch assembly comprises a mounting seat, a mounting plate and a punch;

the punch is detachably connected with the mounting seat.

2. The punch of claim 1 wherein the mounting block defines a first securing hole;

3. The hole punch of claim 2 wherein the punch bottom is circumferentially provided with a projection having an area greater than the first retention hole area.

4. The punching die of claim 2 wherein the punch assembly further comprises a coarse punch;

5. The punching die of claim 1, wherein the die holder comprises an upper die holder and a lower die holder, guide posts are further arranged at the top and bottom ends of the upper die holder, a guide sleeve is arranged on the lower die holder, a stroke limiting block is arranged on the guide sleeve, and the upper die holder and the lower die holder are connected with the guide sleeve through the guide posts.

6. The punching die of claim 5 wherein the upper die base is provided with a guide.

7. The punching die of claim 5 wherein the upper die is fitted with a nitrogen spring.

8. The punching die of claim 5, wherein a spacer is mounted on the lower die base.

9. The punching die of claim 5, wherein the lower die base is further provided with pressure plates at both top and bottom ends.

10. The punching die of claim 5 wherein shock absorbing means are mounted on top of the guide posts.