CN206445214U - Anti-theft lock head shift fork powder metallurgy die - Google Patents
Anti-theft lock head shift fork powder metallurgy die Download PDFInfo
- Publication number
- CN206445214U CN206445214U CN201720069630.3U CN201720069630U CN206445214U CN 206445214 U CN206445214 U CN 206445214U CN 201720069630 U CN201720069630 U CN 201720069630U CN 206445214 U CN206445214 U CN 206445214U
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- die
- relief hole
- inner punch
- punch
- hole
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Abstract
The utility model is related to a kind of door lock production equipment, specifically discloses a kind of Anti-theft lock head shift fork powder metallurgy die.The Anti-theft lock head shift fork powder metallurgy die includes middle mould, upper trimming die and lower punch, and described middle mould includes die body and the die sleeve in die body, and the centre of the die sleeve is provided with forming cavity；Described upper trimming die includes upper relief hole and the first drift, and the upper trimming die is provided with lubrication hole, and described punching press end is provided with fan-shaped boss；Described lower punch includes being provided with lower relief hole in inner punch and outer ram, described outer ram, and described inner punch passes through lower relief hole；The punching press end of the inner punch is provided with the breach matched with the shape of boss.Above-described Anti-theft lock head shift fork powder metallurgy die, sets channel of chip removal between inner punch and outer ram, is easy to the discharge of metal dust, and sets lubrication hole in upper punch, strengthens the lubrication between inner punch and outer ram, improves the mold use life-span.
Description
Technical field
The utility model is related to a kind of door lock production equipment, and in particular to a kind of Anti-theft lock head shift fork powder metallurgy mould
Tool.
Background technology
Powder metallurgy is, as raw material, by shaping and sintering, to produce the industrial skill of all kinds product with metal dust
Art.PM technique possesses notable energy-conservation, material saving, excellent performance, Product Precision height and the series of advantages such as stability is good, non-
It is very suitable for producing in enormous quantities.In addition, material and complexity that part conventional casting methods and machining process can not be prepared
Part can also be manufactured with PM technique, thus enjoy the attention of industrial quarters.
Powder metallurgical technique mainly includes the preparation of raw material, is molded, sinters and post-processes several steps, wherein be molded
Method is generally divided into extrusion forming and pressureless compacting.It is at most compression molding to be applied in extrusion forming, i.e., using certain moduli
Powder is pressed into required shape by tool under 15-600MPa pressure.The purpose of shaping is the pressed compact that definite shape and size is made, and
Certain density and intensity is made it have, is that follow-up sintering is prepared.The quality of shaping directly affects the size essence of product
Degree, the particularly complex product of some structures, the design of mould are just particularly important.High-quality mould
The workload of follow-up mach difficulty can be substantially reduced, it might even be possible to accomplish not cut.
Anti-theft lock head shift fork is the strength member of theftproof lock, due to its special structure, completes the overall pressure of profile
After system, in addition it is also necessary to internally go out a through hole, in the pressing process for carrying out monnolithic case, metal dust can enter interior punching
Passage between head and outer ram, when rush through hole operation, inner punch can be slided mutually with outer ram, and metal dust
In the presence of the abrasion of inner punch and outer ram can be accelerated, the mold use life-span is reduced.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of Anti-theft lock head shift fork powder metallurgy die, rushes inside
Channel of chip removal is set between head and outer ram, is easy to the discharge of metal dust, and lubrication hole is set in upper punch, strengthens inner punch
Lubrication between outer ram, reduces the friction between inner punch and outer ram, improves the mold use life-span.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：Anti-theft lock head shift fork powder
Metallurgical dies, including middle mould, upper trimming die and lower punch, described middle mould include die body and the die sleeve in die body, described
Forming cavity is provided with the middle of die sleeve；Described upper trimming die includes upper relief hole and the first drift matched with the shape of forming cavity,
Described upper relief hole runs through whole upper trimming die, and the upper trimming die is provided with the profit communicated perpendicular to upper relief hole and with upper relief hole
Slide opening, first drift is upper punching press end close to one end of middle mould, and described upper punching press end is provided with fan-shaped boss, the boss
Side it is concordant with upper relief hole；Described lower punch includes inner punch and the outer ram matched with the shape of forming cavity, institute
The lower relief hole corresponding with upper relief hole is provided with the outer ram stated, described inner punch passes through lower relief hole；Under described
Relief hole includes channel of chip removal and pilot hole, and the diameter of the channel of chip removal is more than the diameter and channel of chip removal and guiding of pilot hole
Chamfered transition between hole, described inner punch is slidably connected with pilot hole；Under one end that the inner punch stretches into lower relief hole is
Punching press end, the undershoot pressure side of the inner punch is provided with the breach matched with the shape of boss, and the depth of breach is more than boss
Height.
Anti-theft lock head shift fork powder metallurgy die includes middle mould, upper trimming die and lower punch, and upper trimming die and lower punch are common
Pressed metal powder in forming cavity is acted on to be molded；Described punching press end is provided with fan-shaped boss, and the punching press end of the inner punch is set
There are the breach matched with projection shape, and height of the depth more than boss of breach, described boss and breach is used cooperatively,
Shaping for projection in lock head shifting fork ring.Described lower relief hole includes channel of chip removal and pilot hole, the channel of chip removal
Diameter is more than the diameter and chamfered transition between channel of chip removal and pilot hole of pilot hole, and described inner punch is slided with pilot hole to be connected
Connect, when carrying out the punching shaping of lock head shifting fork, inner punch pumps in lower relief hole, due to the diameter of chip-removal hole
More than pilot hole, a cavity is formed between chip-removal hole and inner punch, metal dust can be discharged out of cavity, prevent metal powder
End is clipped between inner punch and outer ram, causes the excessive wear of inner punch and outer ram.The upper trimming die is provided with perpendicular to upper
Relief hole and the lubrication hole communicated with upper relief hole, when being punched out operation, can inject lubricating oil, internally by lubrication hole
It is lubricated between drift and pilot hole, improves production efficiency.
Preferably, the top edge of the forming cavity is provided with chamfering；After metal dust is compressing, from forming cavity
During middle ejection, the shearing force that blank is produced by elastic abrupt release can cause blank to produce horizontal crackle, chamfering
Setting can reduce the speed of elasticity release, so as to reduce influence of the shearing force to blank, improve product quality.
Preferably, the length of the inner punch is more than the length of outer ram.
Preferably, first drift and outer ram are arranged with buffer gasket, operationally, can prevent upper trimming die and
With middle mould strong shock occurs for lower punch, improves the mold use life-span.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment Anti-theft lock head shift fork powder metallurgy die；
Fig. 2 is the structural representation of upper trimming die in the present embodiment Anti-theft lock head shift fork powder metallurgy die；
Fig. 3 is the structural representation of middle mould in the present embodiment Anti-theft lock head shift fork powder metallurgy die；
Fig. 4 is the structural representation of outer ram in the present embodiment Anti-theft lock head shift fork powder metallurgy die；
Fig. 5 is the structural representation of inner punch in the present embodiment Anti-theft lock head shift fork powder metallurgy die.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Embodiment
As shown in figure 1, Anti-theft lock head shift fork powder metallurgy die, including middle mould 2, upper trimming die 1 and lower punch, such as Fig. 3
Shown, described middle mould 2 includes being provided with forming cavity in the middle of die body 21 and the die sleeve 22 in die body 21, described die sleeve 22
23；As shown in Fig. 2 described upper trimming die 1 includes upper relief hole 11 and the first drift 12 matched with the shape of forming cavity 23,
Described upper relief hole 11 runs through whole upper trimming die 1, and first drift 12 is upper punching press end close to one end of middle mould 2, described
Upper punching press end be provided with fan-shaped boss 14, the side of the boss 14 is concordant with upper relief hole 11；Described lower punch includes interior
Drift 33 and the outer ram 31 matched with the shape of forming cavity 23, as shown in figure 4, being provided with and upper row in described outer ram 31
Expect the corresponding lower relief hole 32 in hole 11, described inner punch 33 passes through lower relief hole 32；Described lower relief hole 32 includes row
Consider passage 322 and pilot hole 321 to be worth doing, the diameter of the channel of chip removal 322 be more than the diameter and channel of chip removal 322 of pilot hole 321 with
Chamfered transition between pilot hole 321, described inner punch 33 is slidably connected with pilot hole 321；Carrying out the punching of lock head shifting fork 4
During shaping, inner punch 33 pumps in lower relief hole 32, because the diameter of chip-removal hole is more than pilot hole 321, chip removal
A cavity is formed between hole and inner punch 33, metal dust can be discharged out of cavity, prevent metal dust to be clipped in inner punch
Between 33 and outer ram 31, the excessive wear of inner punch 33 and outer ram 31 is caused.The upper trimming die 1 is provided with perpendicular to upper discharge
Hole 11 and the lubrication hole 13 communicated with upper relief hole 11, when being punched out operation, can inject lubricating oil by lubrication hole 13,
To being lubricated between inner punch 33 and pilot hole 321, production efficiency is improved.As shown in figure 5, the inner punch 33 stretches into lower row
The one end for expecting hole 32 is undershoot pressure side, and the undershoot pressure side of the inner punch 33 is provided with the breach matched with the shape of boss 14
331, and height of the depth more than boss 14 of breach 331.
Further, the top edge of the forming cavity 23 is provided with chamfering；After metal dust is compressing, from shaping
During being ejected in chamber 23, the shearing force that blank is produced by elastic abrupt release can cause blank to produce horizontal crackle,
The setting of chamfering can reduce the speed of elasticity release, so as to reduce influence of the shearing force to blank, improve product quality.Described
One drift 12 and outer ram 31 are arranged with buffer gasket 5, operationally, can prevent upper trimming die 1 and lower punch from occurring with middle mould 2
It is strong to hit, improve the mold use life-span.
Above-described Anti-theft lock head shift fork powder metallurgy die, sets chip removal to lead between inner punch and outer ram
Road, is easy to the discharge of metal dust, and sets lubrication hole in upper punch, strengthens the lubrication between inner punch and outer ram, reduces
Friction between inner punch and outer ram, improves the mold use life-span.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all not to limit the utility model
Any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in this practicality
Within new protection domain.
Claims (4)
1. Anti-theft lock head shift fork powder metallurgy die, including middle mould（2）, upper trimming die（1）And lower punch, it is characterised in that：Institute
The middle mould stated（2）Including die body（21）With positioned at die body（21）Interior die sleeve（22）, the die sleeve（22）Centre provided with shaping
Chamber（23）；Described upper trimming die（1）Including upper relief hole（11）With with forming cavity（23）The first drift for matching of shape
（12）, described upper relief hole（11）Through whole upper trimming die（1）, the upper trimming die（1）Provided with perpendicular to upper relief hole（11）
And with upper relief hole（11）The lubrication hole communicated（13）；First drift（12）Close to middle mould（2）One end be upper punching press end,
Described upper punching press end is provided with fan-shaped boss（14）, the boss（14）Side and upper relief hole（11）Wall it is concordant；
Described lower punch includes inner punch（33）With with forming cavity（23）The outer ram that matches of shape（31）, described outer ram
（31）It is interior to be provided with and upper relief hole（11）Corresponding lower relief hole（32）, described inner punch（33）Through lower relief hole
（32）；Described lower relief hole（32）Including channel of chip removal（322）And pilot hole（321）, the channel of chip removal（322）Diameter
More than pilot hole（321）Diameter and channel of chip removal（322）With pilot hole（321）Between chamfered transition, described inner punch
（33）With pilot hole（321）It is slidably connected；The inner punch（33）Stretch into lower relief hole（32）One end be undershoot pressure side, it is described
Inner punch（33）Undershoot pressure side be provided with and boss（14）The breach that matches of shape（331）, and breach（331）Depth it is big
In boss（14）Height.
2. Anti-theft lock head shift fork powder metallurgy die according to claim 1, it is characterised in that：The forming cavity（23）
Top edge be provided with chamfering.
3. Anti-theft lock head shift fork powder metallurgy die according to claim 2, it is characterised in that：The inner punch（33）
Length be more than outer ram（31）Length.
4. the Anti-theft lock head shift fork powder metallurgy die according to claim 1 or 2 or 3, it is characterised in that：Described first
Drift（12）And outer ram（31）It is arranged with buffer gasket（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069630.3U CN206445214U (en) | 2017-01-20 | 2017-01-20 | Anti-theft lock head shift fork powder metallurgy die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069630.3U CN206445214U (en) | 2017-01-20 | 2017-01-20 | Anti-theft lock head shift fork powder metallurgy die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206445214U true CN206445214U (en) | 2017-08-29 |
Family
ID=59667055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720069630.3U Expired - Fee Related CN206445214U (en) | 2017-01-20 | 2017-01-20 | Anti-theft lock head shift fork powder metallurgy die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206445214U (en) |
-
2017
- 2017-01-20 CN CN201720069630.3U patent/CN206445214U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20210120 |