CN212190829U

CN212190829U - Flange punching die

Info

Publication number: CN212190829U
Application number: CN202020699023.7U
Authority: CN
Inventors: 郑树林; 张德健; 陈治国
Original assignee: Sichuan Lianmao Machinery Manufacture Co ltd
Current assignee: Sichuan Lianmao Machinery Manufacture Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-22
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a flange cut-out press, include: the lower die assembly comprises a lower die plate, a lower die base arranged on the lower die plate and a lower die arranged and limited on the lower die base; the punch assembly comprises a punch corresponding to the lower die and is used for punching the forge piece; the stripper plate is positioned between the punch head assembly and the lower die assembly, and the middle part of the stripper plate is provided with a through hole for the punch head to pass through; the lower die is provided with a positioning groove matched with the lower end part of the forging, and the positioning groove is used for positioning and mounting the forging; and the middle parts of the lower template, the lower die seat and the lower die are provided with excess material holes communicated with the positioning grooves, and the punch, the through hole, the positioning groove and the excess material holes are coaxially arranged. The die is suitable for punching in a forging process, simple in structure, reasonable in design, convenient and fast in forge piece positioning and assembling, small in contact area between the punching die and a forge piece, convenient to recycle punching excess materials and convenient to use.

Description

Flange punching die

Technical Field

The utility model relates to the technical field of mold, concretely relates to flange cut-out press.

Background

The traditional heavy truck flange does not carry out the processing of punching a hole of forging when forging, and the forging blank is bored by follow-up machining process after forging, and this drilling process is the cold working process, need be equipped with corresponding cutter, and this kind of forging technology process is more, and is consuming time longer, and production efficiency is lower, and equipment cost and cost of labor are higher. In addition, when blank forging drilling is carried out, the excess material of the flange hole part is drilled into chips, the material consumption is large, and recycling is not facilitated.

In order to improve the processing efficiency of the heavy truck flange and save equipment and labor cost, punching processing is carried out in the heavy truck flange forging procedure. The forging is in a high-temperature state in the forging process, the punching process needs to be completed quickly, the positioning assembly of the forging needs to adopt a convenient and fast assembly mode, and the high-temperature punching has corresponding requirements on the design of a die so as to prevent the loss of the die, but the existing die cannot meet the requirements. To this end, we have designed a flange-piercing die suitable for use in the forging process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, a flange cut-out press is provided, and this mould is applicable to and uses in the forging process, simple structure, reasonable in design, and forging location convenient assembling is swift, and cut-out press is few with forging area of contact, and the clout that punches a hole is convenient for recycle, convenient to use.

In order to realize the purpose, the utility model adopts the following technical proposal:

a flange-piercing die, comprising:

the lower die assembly comprises a lower die plate, a lower die base arranged on the lower die plate and a lower die arranged and limited on the lower die base;

the punch assembly comprises a punch corresponding to the lower die and is used for punching a forge piece;

the stripper plate is positioned between the punch head assembly and the lower die assembly, and the middle part of the stripper plate is provided with a through hole for the punch head to pass through;

the lower die is provided with a positioning groove matched with the lower end part of the forging, and the positioning groove is used for positioning and mounting the forging; and the middle parts of the lower template, the lower die seat and the lower die are provided with excess material holes communicated with the positioning grooves, and the punch, the through hole, the positioning groove and the excess material holes are coaxially arranged.

Furthermore, the supporting piece comprises a supporting rod and a spring sleeved on the supporting rod, wherein the spring is a compression spring and is positioned between the stripper plate and the lower template.

Further, the support piece comprises 4 support pieces, and the distance between every two adjacent support pieces is larger than the width of the forge piece.

Further, when the hole is not punched, the distance between the stripper plate and the upper end face of the lower die is larger than the height of the forge piece.

Furthermore, the punch assembly further comprises an upper die plate, a die handle connected with the upper die plate, a punch connecting plate arranged below the upper die plate and a punch fixing ring for installing the punch on the punch connecting plate.

Further, the die shank and the punch are located on the same axis.

Further, the diameter of the through hole is larger than that of the punch and smaller than the outer diameter of the punch fixing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flange cut-out press sets up lower mould subassembly, drift subassembly and takes off the material subassembly, and the during operation, forging snap-on mounting is in the constant head tank of lower mould, punches a hole through the drift, takes off the flitch and is down pressed by the drift subassembly when punching a hole, takes off the flitch after punching a hole and upwards resets and withdraw from the forging with the drift, accomplishes and punches a hole. The punching die is simple in structure, reasonable in design, convenient and fast to use and suitable for punching of forgings in a forging process; the forge piece is convenient and quick to assemble, and only contacts with the positioning groove and the punch of the lower die, so that the loss of the die caused by high temperature is reduced; the excess material produced by punching is discharged through the excess material hole, and the excess material is a whole block, thereby being convenient for recycling and improving the utilization rate of raw materials.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the middle and lower dies of the present invention.

Reference numerals:

1. a lower template; 11. a lower die holder; 12. a lower die; 121. positioning a groove; 13. a residue hole; 2. mounting a template; 21. a die shank; 22. a punch connecting plate; 23. a punch fixing ring; 24. a punch; 3. a material removing plate; 30. a through hole; 31. a support member; 311. a support bar; 312. a spring; 4. and (5) forging.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the embodiment of the present invention provides a flange punching die, which includes a lower die assembly, a punch assembly, a stripper assembly, etc.

Wherein, lower die assembly includes lower bolster 1, die holder 11 and lower mould 12, and die holder 11 is equipped with the lower mould mounting groove on the die holder 11 through bolt location installation on lower bolster 1, and lower mould 12 is spacing to be installed in the lower mould mounting groove of die holder 11.

And a punch assembly including a punch 24, the punch 24 corresponding to the lower die 12 of the lower die assembly. The punch 24 is used to punch the forging 4. The forging 4 is a flange after precision forging.

The stripping assembly comprises a support 31 and a stripping plate 3. The support 31 is arranged on the lower template 1, the stripper plate 3 is arranged on the support 31 in a sliding way, and the stripper plate 3 is positioned between the punch assembly and the lower die assembly, can slide up and down along the support 31 and can be automatically reset. The middle part of the stripper plate 3 is provided with a through hole 30, and the through hole 30 is used for the punch 24 to pass through to punch the forging 4.

Wherein, the lower die 12 is provided with a positioning groove 121, and the positioning groove 121 is matched with the lower end part of the forging 4 and used for positioning and installing the forging 4. Namely, the forging 4 can be directly placed into the positioning groove 121 from the upper part of the lower die 12 for positioning and installation. And the middle parts of the lower template 1, the lower die base 11 and the lower die 12 are provided with a residue hole 13 communicated with each other, and the residue hole 13 is communicated with the positioning groove 121 and is positioned below the positioning groove 121. The punch 24, the through hole 30, the positioning groove 121 and the residue hole 13 are coaxially arranged. The punch 24 penetrates through the through hole 30 to impact the forged piece 4 mounted on the positioning groove 121, and excess materials generated by punching enter the excess material hole 13 below and are discharged from the excess material hole 13.

Preferably, the supporting member 31 includes a supporting rod 311 and a spring 312, the supporting rod 311 is vertically and fixedly installed on the lower template 1, the spring 312 is sleeved on the supporting rod 311, the stripper plate 3 is slidably installed at the upper end of the supporting rod 311, and the spring 312 is located between the stripper plate 3 and the lower template 1. Wherein the spring 312 is a compression spring. When the stripper plate 3 is impacted and slides downwards along the support rod 311, the spring 312 is compressed downwards; when the impact force on the stripper plate 3 disappears, the spring 312 extends upwards to reset, and pushes the stripper plate 3 upwards.

The number of the supporting pieces 31 is 4, the supporting pieces are arranged on the periphery of the lower die base 11, and the spacing distance between every two adjacent supporting pieces 31 is larger than the width of the forged piece 4 to be machined. When the punching process is not performed, namely the spring 312 is in a reset state, the distance between the stripper plate 3 and the upper end surface of the lower die 12 is greater than the height of the forging 4. The positioning installation of the forge piece 4 to be punched can be realized by extending into and placing in the positioning groove 121 of the lower die 12 between the adjacent supporting pieces 31 and between the lower die 12 and the stripper plate 3, so that the rapid installation of the forge piece 4 is realized.

The punch assembly includes an upper die plate 2, a die shank 21 connected to the upper die plate 2, a punch connecting plate 22 installed below the upper die plate 2, and a punch fixing ring 23 for mounting the punch 24 on the punch connecting plate 22, in addition to the punch 24. Wherein, the upper template 2 is sleeved on the die handle 21, and the punch connecting plate 22 is abutted against the die handle 21 below and is connected with the upper template 2 through a bolt; the upper die plate 2 presses and fixes the die shank 21. The punch fixing ring 23 is sleeved on the punch 24 and is in threaded connection with the punch connecting plate 22; the punch retainer ring 23 compresses and fixes the punch 24. Wherein, the die shank 21 and the punch 24 should be located on the same axis; and is on the same axis as the positioning groove 121 of the lower mold 12.

Accordingly, the diameter of the through hole 30 in the middle of the stripper plate 3 should be larger than the diameter of the punch 24 and smaller than the outer diameter of the punch retainer ring 23. That is, in the punching process, only the punch 24 can pass through the through hole 30, and the punch fixing ring 23 contacts the stripper plate 3 to press down the stripper plate 3.

In the foregoing, only certain exemplary embodiments have been described briefly. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, or are orientations and positional relationships conventionally understood by those skilled in the art, which are merely for convenience of description and simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Claims

1. A flange cut-out press, comprising:

the lower die assembly comprises a lower die plate (1), a lower die base (11) arranged on the lower die plate (1) and a lower die (12) arranged and limited on the lower die base (11);

the punch assembly comprises a punch (24) corresponding to the lower die (12) and is used for punching the forge piece (4);

the stripping assembly comprises a support (31) arranged on the lower template (1) and a stripping plate (3) arranged on the support (31) in a sliding manner, the stripping plate (3) is positioned between the punch assembly and the lower die assembly, and the middle part of the stripping plate is provided with a through hole (30) for the punch (24) to pass through;

the lower die (12) is provided with a positioning groove (121) matched with the lower end part of the forging (4), and the positioning groove (121) is used for positioning and installing the forging (4); and the middle parts of the lower template (1), the lower die seat (11) and the lower die (12) are provided with a residue hole (13) communicated with the positioning groove (121), and the punch (24), the through hole (30), the positioning groove (121) and the residue hole (13) are coaxially arranged.

2. The flange punching die according to claim 1, wherein the support member (31) comprises a support rod (311) and a spring (312) sleeved on the support rod (311), wherein the spring (312) is a compression spring and is positioned between the stripper plate (3) and the lower die plate (1).

3. The flange punching die according to claim 1 or 2, wherein the number of the support members (31) is 4, and the distance between two adjacent support members (31) is larger than the width of the forging (4).

4. The flange punching die according to claim 3, wherein the distance between the stripper plate (3) and the upper end surface of the lower die (12) is greater than the height of the forging (4) when not punching.

5. The flange punching die according to claim 1 or 4, wherein the punch assembly further comprises an upper die plate (2), a die shank (21) connected with the upper die plate (2), a punch connecting plate (22) mounted below the upper die plate (2), and a punch fixing ring (23) mounting the punch (24) on the punch connecting plate (22).

6. Flange punching die according to claim 5, characterized in that the die shank (21) is located on the same axis as the punch (24).

7. The flange punching die according to claim 5, wherein the diameter of the through hole (30) is larger than the diameter of the punch (24) and smaller than the outer diameter of the punch retainer ring (23).