CN2233294Y - Single-forming cold working apparatus for multibearing lock core key groove - Google Patents
Single-forming cold working apparatus for multibearing lock core key groove Download PDFInfo
- Publication number
- CN2233294Y CN2233294Y CN 95200776 CN95200776U CN2233294Y CN 2233294 Y CN2233294 Y CN 2233294Y CN 95200776 CN95200776 CN 95200776 CN 95200776 U CN95200776 U CN 95200776U CN 2233294 Y CN2233294 Y CN 2233294Y
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- CN
- China
- Prior art keywords
- fixed
- drift
- lock core
- block
- cold working
- 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
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Abstract
The utility model relates to a processing device for processing high secrecy mechanical lock core parts, which comprises a pair of upper mould frames and a pair of lower mould frames which are fixed on a punch press work bench. The upper mould frames are fixedly connected and installed on a punch press sliding block. A punching head is fixed at the bottom surface of the upper mould frames through a hollow fixing block, a barrel-shaped returned material block which is fixedly connected with a punch press rejected material rod is sheathed outside the fixing block and the punching head, the rejected material block is filled with lubrication oil, the inner wall of the rejected material block has sliding fit with the outer wall of the fixing block, and the bottom of the rejected material block is provided with a through hole which has the sliding fit with the punching head. The lower mould frames is provided with a concave mould, a position block and a sheath coaxially.
Description
The utility model belongs to field of machining and machinebuilding technology, relates to a kind of multi-faceted lock core spoon groove one-shot forming cold working apparatus that is used for processing and fabricating high level security mechanical lock part.
The mechanical lock (spring lock) of common employing plane key, tooth number is generally 4
3～4
6Between, secrecy is relatively low.In order further to improve the security performance of billiards structure lockset, this area has been developed the multi-faceted spring lock of use cylindrical key (cross tooth or many ribs star tooth) in succession in recent years, and its tooth number can reach 4
9～4
12Has higher secrecy but with regard to prior art, this area is remaining in some difficulties aspect the processing of multi-faceted lock core spoon groove: external general electricity consumption perforating apparatus is processed multi-faceted spoon groove (China also have minority Lock Factory with huge foreign exchange from this kind equipment of external introduction), and the cost height of this kind equipment, investment are big, make general medium and small Lock Factory feel frustrated; The producer that also promising number is suitable adopts the processing technology of powder metallurgy to process lock core spoon groove, but this technology power consumption is big, labour cost is high, the product surface oxidation fast and certain pollution is arranged, owing to these reasons, many units have had to get down from horse again after this project last, the processing difficult problem of multi-faceted lock core spoon groove has become the obstacle of the numerous lockset of restriction producer development new product, influenced economic benefit of enterprises greatly, and China's lockset industry that falls behind relatively for lower, the equipment of starting and technology, great loss especially.
The purpose of this utility model is that a kind of rational in infrastructure, little, easy to operate multi-faceted lock core spoon groove one-shot forming cold working apparatus of investment will be provided, and in order to overcome the processing difficult problem of prior art, improves the particularly economic benefit of middle-size and small-size Lock Factory of lockmaking enterprise.
In order to realize the foregoing invention purpose, the utility model designer is through exploration practice repeatedly for a long time, the conception plans of a unconventional production technology is proposed, promptly after the lock core workpiece centre is beaten a little fabrication hole, carry out the spoon groove processing technology of disposable cold punching again, and develop corresponding processing unit (plant) according to this technology.Described processing unit (plant) is put the following mould bases of lock core workpiece and is formed by anchoring at top mold frame and being used on the slider of punch, and spoon groove drift is contained on the top mold frame, on top mold frame and following mould bases, also be provided with drift lubricated, lead and protect member.Utilize processing unit (plant) described in the utility model, general Lock Factory can produce the multiple lock core that has than the multi-faceted spoon groove of high level security in large quantity under the situation that does not increase any equipment.
Below with reference to accompanying drawing the utility model content is described further.
Fig. 1 is the structural representation of a specific embodiment of the utility model.
As shown in the figure, multi-faceted lock core spoon groove one-shot forming cold working apparatus described in the utility model comprises that a fixing top mold frame a that even adorns of a pair and slider of punch and a pair are fixed on the following mould bases b on the punch press workbench, spoon groove drift 5 is fixed on top mold frame a bottom surface by a hollow fixed block 4, outside fixed block 4 and drift 5, be with the tubbiness material returned piece 7 of dress lubricating oil in one, the upper limb of this material returned piece 7 is fixed on the punch press material returned bar 1, on its sidewall, have an oil filler point 6, the inwall of material returned piece 7 and the outer wall of fixed block 4 are slidingly matched, and have the through hole that to do to be slidingly matched with drift 5 in the bottom of material returned piece 7; Fixed placement has locating piece 10 and die 11 on following mould bases b, and also putting in the centre bore of following mould bases locating piece 10 in addition has sheath 9.Number in the figure 2 is a guide post; 3 is backing plate.
It is such utilizing the process of the multi-faceted spoon of device described in the utility model processing groove lock core: the lock core workpiece 8 of earlier center having been beaten little fabrication hole is packed into down in the mould bases sheath 9, starts punch press.After top mold frame a moves down, drift 5 beginning stamped workpieces 8, at this moment 5 location of 7 pairs of drifts of material returned piece and protective effect.When drift 5 moves down, the lower outer diameter of fixed block 4 plays guide effect to material returned piece 7, and make and produce air pressure in the chamber of material returned piece 7, the lubricating oil that injects from oil filler point 6 is discharged with the gap that drift 5 cooperates from material returned piece 7 by force, lubricated by force to the working portion of drift 5 simultaneously, with the frictional force that reduces cold punching and cool off cutter, improve the roughness of machined surface.Material returned bar 1 and guide post 2 move up simultaneously and can play guiding and anti-rotation effect to material returned piece 7, and control drift 5 must not work and rotated.Inner bottom part hole, fixed block 4 chamber is to 5 orientations of drift and protective effect.Smear metal in the punching out process is discharged from the fabrication hole of workpiece 8.When top mold frame a upwards mentioned, the knockout plate of punch press promoted material returned bar 1, stripper 7 is moved down and workpiece 8 is pushed, and so promptly finished a stroke.
The purpose of putting sheath 9 in following mould bases locating piece 10 is in order to prevent because of being out of shape because of workpiece 8 after serious super last the dashing due to when poor of workpiece 8 appearance and sizes and the phenomenon of locating piece 10 lockings.Like this, in case above-mentioned phenomenon occurs, workpiece 8 and sheath 9 will be taken out of by drift 5 simultaneously, unlikely drift be pulled off.
The material of drift 5 is the CrWMn material, heats 860 ℃, oil quenching, and 360 ℃ of tempering three hours, central structure can not fractureed drift from stress point for the impulsive force of disperseing drift designs.
The utility model designer once carried out prolonged and repeated performance test to above-mentioned processing unit (plant): after hundreds of jig frequencies of process, cutter is intact, and processing dimension is stable, and roughness has also reached designing requirement.Utilize processing unit (plant) described in the utility model to solve a difficult problem that exists in the lockset manufacture field for a long time, improved work efficiency, reduced cost, reduced labour cost and energy consumption, brought aspects such as abundant economic benefit all to have important facilitation for the class that improves the lockset product structure and designs and varieties and for enterprise.
Claims (3)
1, a kind of multi-faceted lock core spoon groove one-shot forming cold working apparatus, comprise that a fixing top mold frame of even adorning (a) of a pair and slider of punch and a pair are fixed on the following mould bases (b) on the punch press workbench, it is characterized in that drift (5) is fixed on top mold frame (a) bottom surface by a hollow fixed block (4), outside fixed block (4) and drift (5), be with in one dress lubricating oil and upper limb and be fixed on tubbiness material returned piece (7) on the punch press material returned bar (1), the outer wall of the inwall of described material returned piece (7) and fixed block (4) is slidingly matched, and the bottom has the through hole that can do to be slidingly matched with drift (5); Go up fixed placement at following mould bases (b) locating piece (10) and die (11) are arranged.
2, spoon groove one-shot forming cold working apparatus as claimed in claim 1 is characterized in that having oil filler point on material returned piece (7) sidewall.
3, spoon groove one-shot forming cold working apparatus as claimed in claim 1 is characterized in that the built-in sheath (9) that is placed with of centre bore at following mould bases locating piece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200776 CN2233294Y (en) | 1995-01-06 | 1995-01-06 | Single-forming cold working apparatus for multibearing lock core key groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200776 CN2233294Y (en) | 1995-01-06 | 1995-01-06 | Single-forming cold working apparatus for multibearing lock core key groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233294Y true CN2233294Y (en) | 1996-08-21 |
Family
ID=33854421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200776 Expired - Fee Related CN2233294Y (en) | 1995-01-06 | 1995-01-06 | Single-forming cold working apparatus for multibearing lock core key groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233294Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384562C (en) * | 2003-10-22 | 2008-04-30 | 松下电器产业株式会社 | Metal die for press working and press working method |
| CN101780513A (en) * | 2010-03-10 | 2010-07-21 | 浙江正昌锻造股份有限公司 | Stamp forging mould |
| CN102366781A (en) * | 2011-09-29 | 2012-03-07 | 合肥常青机械制造有限责任公司 | Punching die for back door hinge |
-
1995
- 1995-01-06 CN CN 95200776 patent/CN2233294Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384562C (en) * | 2003-10-22 | 2008-04-30 | 松下电器产业株式会社 | Metal die for press working and press working method |
| CN101780513A (en) * | 2010-03-10 | 2010-07-21 | 浙江正昌锻造股份有限公司 | Stamp forging mould |
| CN101780513B (en) * | 2010-03-10 | 2012-09-19 | 浙江正昌锻造股份有限公司 | One-step forming forging mould of elongated forging with upsetting ratio bigger than 3 |
| CN102366781A (en) * | 2011-09-29 | 2012-03-07 | 合肥常青机械制造有限责任公司 | Punching die for back door hinge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |