CN203664479U - Hard alloy die - Google Patents

Hard alloy die Download PDF

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Publication number
CN203664479U
CN203664479U CN201320854145.9U CN201320854145U CN203664479U CN 203664479 U CN203664479 U CN 203664479U CN 201320854145 U CN201320854145 U CN 201320854145U CN 203664479 U CN203664479 U CN 203664479U
Authority
CN
China
Prior art keywords
die
mold cores
sintered
die core
back pieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320854145.9U
Other languages
Chinese (zh)
Inventor
王征东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GANZHOU VANGUARD CEMENTED CARBIDE CO Ltd
Original Assignee
GANZHOU VANGUARD CEMENTED CARBIDE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GANZHOU VANGUARD CEMENTED CARBIDE CO Ltd filed Critical GANZHOU VANGUARD CEMENTED CARBIDE CO Ltd
Priority to CN201320854145.9U priority Critical patent/CN203664479U/en
Application granted granted Critical
Publication of CN203664479U publication Critical patent/CN203664479U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a die, and discloses a hard alloy die. The hard alloy die comprises a die base body, locating bolts, a die core and a work-piece dropping device. A plurality of locating holes are formed in the side wall of the die base body, and fixing holes are formed in the side wall of the die core, wherein the number of the fixing holes is the same as that of the locating holes, and the fixing holes are matched with the locating holes. The work-piece dropping device is fixed to the lower end of the die core and arranged on a punch at the lower end of the die core in a sleeved mode. According to the hard alloy die, a plurality of the locating bolts are adopted for fixing the die core so that the die core can not be bent easily and can transmit stress to some extent, the stress of the die core is reduced, the die core is made of hard tungsten and cobalt alloy, and therefore the service life of the die can be greatly prolonged.

Description

A kind of sintered-carbide die
Technical field
The utility model relates to a kind of mould, is specifically related to a kind of sintered-carbide die.
Background technology
Sintered-carbide die is tens times and even tens times of life-span of punching block, sintered-carbide die has the advantages such as high rigidity, high-strength, corrosion-resistant, the high temperature resistant and coefficient of expansion be little, and the carbide alloy often having has cold heading die, cold-punching mould, wire drawing die, hexagonal mould and spiral mould etc.In existing punch press grinding tool, mold cores is arranged in die matrix, employing bolt is fixed, but adopts bolt too to concentrate and make to produce small bending in mold cores punching course, easily causes major injury even can not reuse to mold cores for a long time.The workpiece of twice punching press the precision of mould is caused to damage before and after damaging when the drift of mold cores workpiece in the time of punching press is easily clipped in and makes punching press again on drift in addition.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of sintered-carbide die that improves die life is provided.
For solving the problems of the technologies described above, the utility model provides a kind of sintered-carbide die, it comprises die matrix, bolt, mold cores and back pieces device, described die matrix sidewall has several locating holes, described mold cores sidewall has and described locating hole similar number and suitable with it fixing hole, and described mold cores lower end is fixed with on the drift that back pieces device is placed on described mold cores lower end.
Further, the material of described mold cores is tungsten-cobalt hard alloy, and the drift top of described mold cores is hemisphere face body, can reduce the degree of wear of drift.
Further, described mold cores upper end is provided with pad.
Further, described back pieces device is made up of spring assembly and back pieces plate, and described back pieces device can prevent that workpiece clamp from, on told drift, affecting next stamping procedure, protection mould and die accuracy.
Further, it is interior and suitable with described fixing hole that described bolt is installed on described locating hole, the bolt of described multiple positions can avoid mold cores to bend, and has and alleviate the stressed effect of mold cores, improves the service life of mold cores.
The beneficial effects of the utility model are: the utility model adopts multiple bolts to be fixed and to make it be difficult for bending occurring and can playing the stressed effect of certain conduction mold cores, make that mold cores is stressed to be reduced, mold cores uses tungsten-cobalt hard alloy to make, the comprehensive above service life that can greatly improve mould.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is mold cores schematic diagram of the present utility model.
In figure: 1, die matrix; 2, locating hole; 3, mold cores; 4, drift; 5, pad; 6, bolt; 7, fixing hole; 8, spring assembly; 9, back pieces plate; 10, back pieces device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further set forth.
As depicted in figs. 1 and 2, a kind of sintered-carbide die, it comprises die matrix 1, bolt 6, mold cores 3 and back pieces device 10, die matrix 1 sidewall has and is no less than eight locating holes 2, point upper and lower two-layer setting.Mold cores 3 sidewalls have and locating hole fixing holes 72 similar numbers and suitable with it, and it is interior and suitable with fixing hole 7 that bolt 6 is installed on locating hole 2.Mold cores 3 lower ends are fixed with on the drift 4 that back pieces device 10 is placed on mold cores 3 lower ends.The material of mold cores 3 is tungsten-cobalt hard alloy, and drift 4 tops of mold cores 3 are hemisphere face body.Mold cores 3 upper ends are provided with pad 5.Back pieces device 10 is made up of spring assembly 8 and back pieces plate 9.
When installation, first pad 5 is put into die matrix 1, then put into mold cores 3, rotary die core 3 makes the fixing hole 7 on it align with the locating hole 2 on die matrix 1, screw in bolt 6 mold cores 3 is fixed, bolt 6 can avoid mold cores 3 to bend, and has and alleviate the stressed effect of mold cores 3, in the service life of improving mold cores 3, then back pieces device 10 is installed on to mold cores lower end.When work, die matrix 1 moves downward drift 4 is poured in section bar, and then die matrix 1 gos up, and the 10 pressurized resiliences of back pieces device come off the workpiece being clipped on drift 4.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; in the prerequisite that does not depart from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent.

Claims (5)

1. a sintered-carbide die, it is characterized in that: it comprises die matrix, bolt, mold cores and back pieces device, described die matrix sidewall has several locating holes, described mold cores sidewall has and described locating hole similar number and suitable with it fixing hole, and described mold cores lower end is fixed with on the drift that back pieces device is placed on described mold cores lower end.
2. sintered-carbide die according to claim 1, is characterized in that: the material of described mold cores is tungsten-cobalt hard alloy, and the drift top of described mold cores is hemisphere face body.
3. sintered-carbide die according to claim 2, is characterized in that: described mold cores upper end is provided with pad.
4. sintered-carbide die according to claim 1, is characterized in that: described back pieces device is made up of spring assembly and back pieces plate.
5. sintered-carbide die according to claim 1, is characterized in that: it is interior and suitable with described fixing hole that described bolt is installed on described locating hole.
CN201320854145.9U 2013-12-11 2013-12-11 Hard alloy die Expired - Fee Related CN203664479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320854145.9U CN203664479U (en) 2013-12-11 2013-12-11 Hard alloy die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320854145.9U CN203664479U (en) 2013-12-11 2013-12-11 Hard alloy die

Publications (1)

Publication Number Publication Date
CN203664479U true CN203664479U (en) 2014-06-25

Family

ID=50960812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320854145.9U Expired - Fee Related CN203664479U (en) 2013-12-11 2013-12-11 Hard alloy die

Country Status (1)

Country Link
CN (1) CN203664479U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104607539A (en) * 2014-12-23 2015-05-13 苏州用朴合金工具有限公司 Hard alloy die
CN104826921A (en) * 2014-12-31 2015-08-12 浙江吉利汽车有限公司 Recyclable mold punch and recycling method
CN112808883A (en) * 2020-12-30 2021-05-18 中核北方核燃料元件有限公司 Preparation method of bent tungsten electrode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104607539A (en) * 2014-12-23 2015-05-13 苏州用朴合金工具有限公司 Hard alloy die
CN104826921A (en) * 2014-12-31 2015-08-12 浙江吉利汽车有限公司 Recyclable mold punch and recycling method
CN112808883A (en) * 2020-12-30 2021-05-18 中核北方核燃料元件有限公司 Preparation method of bent tungsten electrode

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140625

Termination date: 20151211

EXPY Termination of patent right or utility model