CN203245248U - Rear axle adjusting nut punching die - Google Patents
Rear axle adjusting nut punching die Download PDFInfo
- Publication number
- CN203245248U CN203245248U CN 201320160929 CN201320160929U CN203245248U CN 203245248 U CN203245248 U CN 203245248U CN 201320160929 CN201320160929 CN 201320160929 CN 201320160929 U CN201320160929 U CN 201320160929U CN 203245248 U CN203245248 U CN 203245248U
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- die
- adjusting nut
- guide plate
- punching
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Abstract
The utility model discloses a rear axle adjusting nut punching die. The die is divided into an upper portion and a lower portion, wherein the upper portion of the die comprises an upper template (2), a male die fixing plate (4), guide pillars (5) and a punching male die (6), and the lower portion of the die comprises guide sleeves (9), a female die fixing plate (10), a punching female die (11) and a lower template (15). The rear axle adjusting nut punching die is characterized in that a guide plate (8) is arranged between the male die fixing plate (4) and the female die fixing plate (10), upper die guide holes are formed in the guide plate (8) and connected with the guide pillars (5) in a sliding mode, a male die guide hole is formed in the guide plate (8) and connected with the punching male die (6) in a sliding mode, the upper portion of the guide plate (8) is connected with the male die fixing plate (4) through discharging erasers (7), and an adjusting nut positioning end face is arranged on the lower portion of the guide plate (8). According to the rear axle adjusting nut punching die, the guide plate structure is adopted, the same set of punching dies are utilized to punch 16 holes in an adjusting nut in twice, the clearance between the punching male die (6) and the punching female die (11) is guaranteed to be even, product quality is improved, the service life of the die is prolonged, production efficiency is high, and production cost is low.
Description
Technical field
The utility model belongs to the machining equipment field, relates to a kind of back axle adjusting nut punching die.
Background technology
Rear axle assy is to subtract assembly by the master to be connected with power transmission shaft, and adjusting nut plays a part to adjust the bearing clearance, and it directly affects the size of the field of conjugate action between travelling gear and the driven gear, thereby affects service life of gear and gear generation abnormal sound etc.By present traditional perforating die structure, guide pillar, the guide pin bushing upper and lower template that directly leads, it is larger affected by machine tool accuracy, Mould Machining precision etc.Because this workpiece material is thicker, can reach 5mm, and once rush simultaneously again 8 Φ 8 holes, the easy play of each piercing punch in process of production, thereby make punching convex, recessed gap inhomogeneous, in addition sometimes punching convex, cutting edge of die are gnawed scarce, such each hole bur height often overproof (the workpiece punching burr is overproof also can directly to affect assembling function) during punching, thereby cause that product is stained with mould, general every making 800-1000 spare product will form removal sharpening punching convex, cutting edge of die.This workpiece sheet material is thick in addition, once rush simultaneously porous, and each aperture is again less, and (thick such as the workpiece material is 5mm, once rush simultaneously 8 Φ 8 holes), 3000 products of general every making, piercing punch are fracture just, like this will the frequent piercing punch, cause mould and die accuracy to descend, thereby affect die life.Therefore there is risk in the quality of product always, and production efficiency is low, and die life is short, and production cost is high.
Summary of the invention
The utility model purpose provides a kind of back axle adjusting nut punching die, and by adopting guide board structure to improve die life and product quality.This punching die is installed on the forcing press automobile axle adjusting nut is carried out punching.
The purpose of this utility model is achieved in that
Mould is to adopt guide plate guiding piercing punch, and guide pillar, guide pin bushing guiding punch and matrix fixed plate structure guarantee that piercing punch rigidity and punching punch and matrix gap are even, thereby improve die life and product quality.The first half of its minute mould and the latter half of mould; the first half of mould comprises cope match-plate pattern, punch retainer, guide pillar and piercing punch; the latter half of mould comprises guide pin bushing, die block, punching concave die and lower bolster; be provided with guide plate between described punch retainer and the die block; guide plate is provided with the patrix pilot hole and guide pillar is slidingly connected; guide plate is provided with the punch pilot hole and piercing punch is slidingly connected; the guide plate top is connected with punch retainer by the discharging rubber, and the guide plate below is provided with adjusting nut location end face.
Described guide plate is staircase structural model, and the centre is step, and the punch pilot hole is located in the step, and the lower surface of step is adjusting nut location end face, and the patrix pilot hole is located at it the plate on both sides.
Described punch retainer is staircase structural model, and the centre is the annulus column, and piercing punch is located on the circle ring column and the punch retainer interference fit, the center that the discharging rubber is located at punch retainer be connected the plate of position and be connected with punch retainer with it.
Described die block center is provided with large locating hole and is connected with large alignment pin, die block is connected with the punching concave die interference fit along evenly being provided with eight die locating holes on the center circle, and die block is along the same circle of die locating hole and to form angle with adjacent die locating hole be that the footpath of 22.5o upwards is provided with little locating hole and is connected with little alignment pin.
Guide pillar and guide plate matched in clearance, double-faced clearance are 0.10-0.12mm; Guide plate and piercing punch matched in clearance, double-faced clearance are 0.18-0.20mm, the double-faced clearance 0.08-0.10mm of guide pillar and guide pin bushing.
Large alignment pin is connected with the large locating hole of die block by interference fit, and little alignment pin is connected with the little locating hole of die block by matched in clearance, and double-faced clearance is 0.01-0.03mm.
The double-faced clearance 0.94-0.96mm of piercing punch and punching concave die.
The high boss lower surface contacts with workpiece and when moving up 2mm, short boss lower surface touches the guide pin bushing upper surface simultaneously outside the guide plate in the middle of the guide plate.
The utility model is taked guide board structure, and guide pillar, guide pin bushing are led punch retainer and die block, guarantees that like this gap between piercing punch and the punching concave die is even, thereby improves the quality of products and die life; Piercing punch leads with guide plate, and guide plate leads with guide pillar, has so both guaranteed that each piercing punch in process of production can play, has improved again each piercing punch intensity, thereby has improved the quality of products and die life; Step of punch retainer design, high step is used for fixing piercing punch like this, it is as far as possible short to make piercing punch expose the height of punch retainer, thereby improve piercing punch intensity, the step that the punch retainer outside is short and the middle hole that hollows out are used for loading and unloading the material rubber, so both guaranteed that mould had enough stripping forces, and made again mould closed height＜300mm(guarantee that namely mould can be installed on the 100T forcing press); Guide plate modeling tool material T10A, quenching hardness is HRC50-55, and designs a step, so both increased the guide effect of piercing punch, can increase again the effect of workpiece pressing, discharging workpiece, improve simultaneously the intensity of guide plate, thereby improve the quality of products; In order to make guide plate can be in guide pillar and piercing punch freely movable, reduce again simultaneously the workpiece stripping force, the high boss lower surface rigidly connects when touching workpiece and moving up 2mm (first workpiece pressing) in the middle of the guide plate, short boss lower surface, guide plate outside also will touch the guide pin bushing upper surface simultaneously, so just can make guide plate stressed even everywhere.
Description of drawings
Fig. 1 is the utility model embodiment 1 main TV structure schematic diagram.
Fig. 2 is the plan structure schematic diagram of the utility model embodiment 1 the latter half.
Fig. 3 is the utility model embodiment 1 adjusting nut structural representation.
Among the figure: die shank 1, cope match-plate pattern 2, upper die plate 3, punch retainer 4, guide pillar 5, piercing punch 6, discharging rubber 7, guide plate 8, guide pin bushing 9, die block 10, punching concave die 11, large alignment pin 12, little alignment pin 13, counterdie backing plate 14, lower bolster 15.
The specific embodiment
The utility model can pass through the technical scheme implementation, and by can conducting further description the utility model the following examples, yet scope of the present utility model is not limited to following embodiment.
Embodiment 1: NKR gently blocks the back axle adjusting nut as example take processing:
NKR gently blocks the back axle adjusting nut and rushes 16 casement mould structures shown in " Fig. 1 and Fig. 2 ": mould is divided into the first half of mould and the latter half of mould.
The first half structural relation of mould is: piercing punch 6 is pressed design attitude and punch retainer 4 interference fit, guide pillar 5 is connected with punch retainer 4 by interference fit, punch retainer 4 is installed on the upper die plate 3 by bolt and alignment pin, upper die plate 3 is installed on the cope match-plate pattern 2 by bolt and alignment pin, die shank 1 and cope match-plate pattern 2 interference fit, guide plate 8 is connected with punch retainer 4 with discharging rubber 7 by stripper bolt.Guide pillar 5 and guide plate 8 matched in clearance (double-faced clearance 0.10-0.12mm).Guide plate 8 and piercing punch 6 matched in clearance (double-faced clearance 0.18-0.20mm), guide plate 8 modeling tool material T10A, quenching hardness is HRC50-55.
The latter half structural relation of mould is: punching concave die 11 is pressed design attitude and die block 10 interference fit, guide pin bushing 9 is fixedly connected with die block 10 by interference fit, large alignment pin 12 is installed on the die block 10 by interference fit, little alignment pin 13 is installed on the die block 10 by matched in clearance (double-faced clearance 0.01-0.03mm), die block 10 is installed on the counterdie backing plate 14 by bolt and alignment pin, and counterdie backing plate 14 is installed on the lower bolster 15 by bolt and alignment pin.The double-faced clearance 0.94-0.96mm of piercing punch 6 and punching concave die 11.The double-faced clearance 0.08-0.10mm of guide pillar 5 and guide pin bushing 9.
NKR gently blocks the back axle adjusting nut and rushes 16 punch dies and be installed on the 100T forcing press by the mounting means of common stamping mould.
Such NKR gently blocks the punching processing that just can be directly used in punching 16 punch dies after the blanking of back axle adjusting nut, blanking-punching, the forming process:
The 1st step: NKR is gently blocked the back axle adjusting nut rush 16 punch dies and be installed on the 100T forcing press;
The 2nd step: little alignment pin 13 is taken out from die block 10;
The 3rd step: the prefabricated adjusting nut workpiece after the forming process is placed on the die block 10, and reserves the middle macropore of workpiece with large alignment pin 12;
The 4th step: start forcing press, cope match-plate pattern 2 moves downwards with the lathe upper table, guide plate 8 is first workpiece pressing under the pressure-acting of discharging rubber 7, and then piercing punch 6 moves downward with punching concave die 11 and finishes for the first time pre-8 holes (being that workpiece is gone out first 8 holes) that rush of workpiece;
The 5th step: after the punching processing, the first half return of forcing press top shoe driven mold, guide plate 8 draws off workpiece under 7 effects of discharging rubber, take out workpiece with aid again, and punched scrap spills from counterdie and lathe lower table;
The 6th step: repeating step 3 is to the operation of step 5, and workpiece is finished and rushed 8 holes for the first time;
The 7th step: step 2 is taken out little alignment pin 13 be installed onto on the die block 10;
The 8th step: the workpiece (being that workpiece is only gone out 8 holes) that step 6 is finished is placed on the die block 10, and reserve macropore in the middle of the workpiece with large alignment pin 12, reserve a hole (being workpiece 8 holes that go out the first time in step 6) in 8 holes that workpiece goes out for the first time with little alignment pin 13.Since 8 holes that workpiece is evenly gone out for the first time, 8 holes that namely evenly distribute on the workpiece, the angle between two adjacent holes is 360 o/8=45o).And little alignment pin 13 and punching concave die 11 are distributed on the same circle, and with punching concave die 11 angles be 22.5o, workpiece has just rotated the 22.5o angle like this.
The 9th step: start forcing press, cope match-plate pattern 2 moves downwards with the lathe upper table, and guide plate 8 is first workpiece pressing under the pressure-acting of discharging rubber 7, and then piercing punch 6 moves downward with punching concave die 11 and finishes for the second time pre-8 holes that rush of workpiece.
The 10th step: after the punching processing, the first half return of forcing press top shoe driven mold, guide plate 8 draws off workpiece under 7 effects of discharging rubber, take out workpiece with aid again, and punched scrap spills from counterdie and lathe lower table;
The 11st step: repeating step 8 is to the operation of step 10, and workpiece is finished and rushed 8 holes for the second time.Workpiece has just been finished the stamping-out in whole 16 holes like this.
After NKR gently blocked back axle adjusting nut use punching 16 punch dies, the relative dimensions such as each hole bur height of workpiece, position degree, centre-to-centre spacing were all in the margin of tolerance.And sustainable stable guaranteeing NKR gently blocks the back axle adjusting nut and reaches the product drawing requirement.
Claims (8)
1. back axle adjusting nut punching die, the first half of its minute mould and the latter half of mould, the first half of mould comprises cope match-plate pattern (2), punch retainer (4), guide pillar (5) and piercing punch (6), the latter half of mould comprises guide pin bushing (9), die block (10), punching concave die (11) and lower bolster (15), it is characterized in that: be provided with guide plate (8) between described punch retainer (4) and the die block (10), guide plate (8) is provided with the patrix pilot hole and guide pillar (5) is slidingly connected, guide plate (8) is provided with the punch pilot hole and piercing punch (6) is slidingly connected, guide plate (8) top is connected with punch retainer (4) by discharging rubber (7), and guide plate (8) below is provided with adjusting nut location end face.
2. a kind of back axle adjusting nut punching die according to claim 1, it is characterized in that described guide plate (8) is staircase structural model, the centre is step, and the punch pilot hole is located in the step, the lower surface of step is adjusting nut location end face, and the patrix pilot hole is located at it the plate on both sides.
3. a kind of back axle adjusting nut punching die according to claim 1 and 2, it is characterized in that described punch retainer (4) is staircase structural model, the centre is the annulus column, piercing punch (6) is located on the circle ring column and punch retainer (4) interference fit, the center that discharging rubber (7) is located at punch retainer (4) be connected the plate of position and be connected with punch retainer (4) with it.
4. a kind of back axle adjusting nut punching die according to claim 1 and 2, it is characterized in that described die block (10) center is provided with large locating hole and is connected with large alignment pin (12), die block (10) is connected with punching concave die (11) interference fit along evenly being provided with eight die locating holes on the center circle, and die block (10) is along the same circle of die locating hole and to form angle with adjacent die locating hole be that the footpath of 22.5o upwards is provided with little locating hole and is connected with little alignment pin (13).
5. a kind of back axle adjusting nut punching die according to claim 1 and 2 is characterized in that guide pillar (5) and guide plate (8) matched in clearance, and double-faced clearance is 0.10-0.12mm; Guide plate (8) and piercing punch (6) matched in clearance, double-faced clearance is 0.18-0.20mm, the double-faced clearance 0.08-0.10mm of guide pillar (5) and guide pin bushing (9).
6. a kind of back axle adjusting nut punching die according to claim 4, it is characterized in that large alignment pin (12) is connected by the large locating hole of interference fit with die block (10), little alignment pin (13) is connected by the little locating hole of matched in clearance with die block (10), and double-faced clearance is 0.01-0.03mm.
7. a kind of back axle adjusting nut punching die according to claim 1 is characterized in that the double-faced clearance 0.94-0.96mm of piercing punch (6) and punching concave die (11).
8. a kind of back axle adjusting nut punching die according to claim 2, it is characterized in that in the middle of the guide plate (8) that the high boss lower surface contacts with workpiece and when moving up 2mm, short boss lower surface touches guide pin bushing (9) upper surface simultaneously outside the guide plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160929 CN203245248U (en) | 2013-04-03 | 2013-04-03 | Rear axle adjusting nut punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160929 CN203245248U (en) | 2013-04-03 | 2013-04-03 | Rear axle adjusting nut punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245248U true CN203245248U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160929 Expired - Fee Related CN203245248U (en) | 2013-04-03 | 2013-04-03 | Rear axle adjusting nut punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203245248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143620A (en) * | 2013-04-03 | 2013-06-12 | 江西江铃底盘股份有限公司 | Rear axle regulating nut punching die and punching process |
| CN108237187A (en) * | 2016-12-27 | 2018-07-03 | 安徽省青阳县华瑞科技有限公司 | A kind of nut rushes through-hole mold |
-
2013
- 2013-04-03 CN CN 201320160929 patent/CN203245248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143620A (en) * | 2013-04-03 | 2013-06-12 | 江西江铃底盘股份有限公司 | Rear axle regulating nut punching die and punching process |
| CN103143620B (en) * | 2013-04-03 | 2015-03-25 | 江西江铃底盘股份有限公司 | Rear axle regulating nut punching die and punching process |
| CN108237187A (en) * | 2016-12-27 | 2018-07-03 | 安徽省青阳县华瑞科技有限公司 | A kind of nut rushes through-hole mold |
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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: 20131023 Termination date: 20180403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |