CN205147022U - Rear axle locking packing ring dashes 24 casement utensils for two steps - Google Patents

Rear axle locking packing ring dashes 24 casement utensils for two steps Download PDF

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Publication number
CN205147022U
CN205147022U CN201520974741.XU CN201520974741U CN205147022U CN 205147022 U CN205147022 U CN 205147022U CN 201520974741 U CN201520974741 U CN 201520974741U CN 205147022 U CN205147022 U CN 205147022U
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CN
China
Prior art keywords
punch
die
punching
hole
guide
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Application number
CN201520974741.XU
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Chinese (zh)
Inventor
邱庚龙
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江西江铃底盘股份有限公司
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Priority to CN201520974741.XU priority Critical patent/CN205147022U/en
Application granted granted Critical
Publication of CN205147022U publication Critical patent/CN205147022U/en

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Abstract

The utility model discloses a rear axle locking packing ring dashes 24 casement utensils for two steps, including last mould and lower mould, go up the mould and include die shank, cope match -plate pattern, upper padding plate and punch plate, punch plate is stepped structure, the step is big -end -up, punch plate's lower part step is the cylindricality, punch plate evenly is equipped with 12 terrace dies that punch a hole around the circumferencial direction of cylindricality step on, the lower mould includes matrix plate, lower mould backing plate and lower bolster, evenly be equipped with 12 die locating holes on the circumferencial direction at matrix plate edge center, be equipped with the die that punches a hole in the die locating hole, be equipped with automatic correction of guiding mechanism and shedding mechanism between punch plate and the matrix plate, terrace die and punching a hole between the punching a hole of die for the station that punches a hole. The utility model discloses mould long service life, punching process is stable, adopts the secondary punching press to save one set of mould, and secondary punching press location is convenient, and the outward appearance of product is regular.

Description

A kind of back axle locking packing ring two step punching 24 punch dies
Technical field
The utility model belongs to machining equipment field, specifically relates to a kind of back axle locking packing ring two step punching 24 punch dies.
Background technology
Rear axle assy is subtracted assembly be connected with semiaxis by main, and semiaxis is connected with rear-wheel hub assembly, and locking packing ring works to lock bearing nut and namely prevents bearing nut Hui Song, and it directly affects semiaxis and rear-wheel hub assembly bonding strength.By traditional at present perforating die structure, guide pillar, guide pin bushing directly lead upper and lower template, affect larger by machine tool accuracy, Mould Machining precision etc.Because this workpiece thickness of slab is thicker, 4.0mm can be reached, and once rush 12 Φ 7 holes again simultaneously, the easy play of each piercing punch in process of production, thus make punching convex, recessed gap uneven, even sometimes punching convex, cutting edge of die are gnawed scarce, each hole bur more (workpiece punching burr directly can affect assembling function) during such punching, thus be difficult to ensure product quality, and general often making 1000-1200 part product will form removal sharpening punching convex, cutting edge of die.This workpiece sheet material is thick in addition, once rushes porous simultaneously, and each aperture is less again, generally often makes 2000 products, and piercing punch is fracture just, frequently will change piercing punch like this, and cause mould and die accuracy to decline, thus reduce the mold use life-span.For this reason, be necessary to design a kind of can ensure product quality while, enhance productivity, improve die life short, reduce back axle locking packing ring two step punching 24 punch dies of production cost.
Utility model content
The purpose of this utility model is the deficiency optimizing existing production technology, adapts to reality need, provides a kind of back axle locking packing ring two step to rush 24 punch dies.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of back axle locking packing ring two step punching 24 punch dies, comprise patrix and counterdie,
Described patrix comprises the die shank, cope match-plate pattern, upper padding plate and the punch retainer that are fastenedly connected successively from top to bottom; Described punch retainer is staircase structural model, and step is up big and down small, and the lower step of punch retainer is cylindricality, and described punch retainer is circumferentially evenly provided with 12 piercing punches around cylindricality step,
Described counterdie comprises the die block, counterdie backing plate and the lower bolster that are fastenedly connected successively from top to bottom,
Described die block centrally be circumferentially evenly provided with 12 die locating holes, be provided with punching concave die in die locating hole,
Automatic calibration guiding mechanism and shedding mechanism is provided with between described punch retainer and die block;
It is punching station between described piercing punch and the punching of punching concave die.
Described shedding mechanism comprises guide plate and discharging rubber, the top of die block is provided with guide plate, the counterdie body of piercing punch and the middle via hole of guide plate are slidably connected, the centre of the cylindricality ladder of described punch retainer is provided with blind hole, is provided with five discharging rubbers between the blind hole that the front and rear sides of guide plate and punch retainer and guide plate and punch retainer are provided with.
Described automatic calibration guiding mechanism is divided into the level correction mechanism of workpiece and the vertical correction mechanism of composite die, comprises guide plate, alignment pin, guide pin bushing and guide pillar.
The centre of die block is provided with locating hole, and alignment pin is connected with the locating hole of die block by interference fit; The middle lower portion of described guide plate is provided with guiding shape chamber, and guiding shape chamber and alignment pin matched in clearance form the level correction mechanism of workpiece.
Alignment pin is provided with two locating notches, and the angle between the center line of two locating notches is 45o.
Described guide plate both sides are provided with guide pillar hole, guide pillar hole and guide pillar matched in clearance, guide pillar is connected with punch retainer by interference fit, described guide pin bushing is connected with the guide pin bushing via hole of die block by interference fit, guide pin bushing and the guide pillar of the same side are in axial sliding connection, and guide pin bushing, guide plate and guide pillar form the vertical correction mechanism of composite die.
The double-faced clearance of the guide pillar hole that described guide plate both sides are provided with and guide pillar matched in clearance is 0.10-0.12mm, and the double-faced clearance of guide pillar and guide pin bushing is 0.08-0.10mm, the double-faced clearance 0.64-0.66mm of piercing punch and punching concave die.
The beneficial effects of the utility model are:
1. the utility model die punching process stabilization, two times punch is adopted to save one set of die, and two times punch location is convenient, the relative dimensions such as each hole bur height of stamping forming product, position degree, centre-to-centre spacing, all in the margin of tolerance, ensure that the regular of product appearance shape.
2. piercing punch guide plate leads, and guide plate guide pillar leads, and so both ensure that each piercing punch in process of production can not play, has turn improved each piercing punch intensity, thus improve the quality of products and die life.
3. punch retainer design is in step, the high step in such centre is used for fixing piercing punch, piercing punch is made to expose the height of punch retainer as far as possible low, thus improve piercing punch intensity, step low outside punch retainer and the middle hole hollowed out are used for loading and unloading material rubber, so both ensure that mould has enough stripping forces, make again mould closed height <300mm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of the utility model part of the lower die;
Fig. 3 is the structural representation of workpiece after one-off hole-piercing;
Fig. 4 is the structural representation of workpiece after secondary punching;
In figure, die shank 1, cope match-plate pattern 2, upper padding 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, alignment pin 12, counterdie backing plate 13, lower bolster 14.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment: to process N900 heavily card back axle locking packing ring: see Fig. 1-Fig. 4.
A kind of back axle locking packing ring two step punching 24 punch dies, comprise patrix and counterdie, described patrix comprises the die shank 1, cope match-plate pattern 2, upper padding plate 3 and the punch retainer 4 that are fastenedly connected successively from top to bottom;
Described punch retainer 4 is staircase structural model, and step is up big and down small, and the lower step of punch retainer 4 is cylindricality, and described punch retainer 4 is circumferentially evenly provided with 12 piercing punches 6 around cylindricality step,
Described counterdie comprises the die block 10, counterdie backing plate 13 and the lower bolster 14 that are fastenedly connected successively from top to bottom,
Described die block 10 centrally be circumferentially evenly provided with 12 die locating holes, be provided with punching concave die 11 in die locating hole,
Automatic calibration guiding mechanism and shedding mechanism is provided with between described punch retainer 4 and die block 10;
Be punching station between described piercing punch 6 and the punching of punching concave die 11.
Described shedding mechanism comprises guide plate 8 and discharging rubber 7, the top of die block 10 is provided with guide plate 8, the counterdie body of piercing punch 6 and the middle via hole of guide plate 8 are slidably connected, the centre of the cylindricality ladder of described punch retainer 4 is provided with blind hole, five discharging rubbers 7 are provided with between the blind hole that the front and rear sides of guide plate 8 and punch retainer 4 and guide plate 8 and punch retainer 4 are provided with, guide plate 8 selects mold materials T10A, quenching hardness is HRC50-55, the intensity of such raising guide plate 8, thus improve die life.This structure rear mold bulk life time is adopted to improve 19 times.
Described automatic calibration guiding mechanism is divided into the level correction mechanism of workpiece and the vertical correction mechanism of composite die, comprises guide plate 8, alignment pin 12, guide pin bushing 9 and guide pillar 5.
The centre of die block 10 is provided with locating hole, and alignment pin 12 is connected by the locating hole of interference fit with die block 10; The middle lower portion of described guide plate 8 is provided with guiding shape chamber, and guiding shape chamber and alignment pin 12 matched in clearance form the level correction mechanism of workpiece.
The centre of die block 10 is provided with locating hole, and alignment pin 12 is connected by the locating hole of interference fit with die block 10, and alignment pin 12 is provided with two locating notches, and the center of two locating notches is 45o to the angle between alignment pin 12 center line.
Guide plate 8 be arranged on die block 10 top and between be provided with discharging rubber 7, the middle lower portion of described guide plate 8 is provided with guiding shape chamber, guiding shape chamber and alignment pin 12 matched in clearance, described guide plate 8 both sides are provided with guide pillar hole, guide pillar hole and guide pillar 5 matched in clearance, described guide pin bushing 9 is connected with the guide pin bushing via hole of die block 10 by interference fit, guide pillar 5 is connected with punch retainer 4 by interference fit, guide pin bushing 9 and the guide pillar 5 of the same side are in axial sliding connection, and guide pin bushing 9, guide plate 8 and guide pillar 5 form the vertical correction mechanism of composite die.
The double-faced clearance of the guide pillar hole that described guide plate 8 both sides are provided with and guide pillar 5 matched in clearance is 0.10-0.12mm, and guide pillar 5 is 0.08-0.10mm with the double-faced clearance of guide pin bushing 9, the double-faced clearance 0.64-0.66mm of piercing punch 6 and punching concave die 11.
Procedure of processing of the present utility model and principle are summarized as follows:
The first step, is arranged on single-point open type steam-operating forcing press by this mould;
Second step, blanking, is placed on the workpiece after blanking-rush macropore operation on die block 10, and with the macropore in the middle of the good workpiece of the excircle orientation of alignment pin 12, reserves the protrusion in the middle of workpiece in macropore with the breach of first on alignment pin 12;
3rd step, start forcing press and punch process is carried out to locking packing ring blank, press ram moves downward with cope match-plate pattern 2, upper padding plate 3 and punch retainer 4, guide plate 8 is first workpiece pressing under the pressure effect of discharging rubber 7, press ram continues to when moving to lower dead center, and piercing punch 6 moves downward and to complete first time with punching concave die 11 and rush 12 holes in advance;
4th step, forcing press is risen, press bench wears the first half return of mould, discharging is become by rushing 12 hole workpieces in advance under the effect of resilience after guide plate 8 is subject to discharging rubber 7 compression, meanwhile, punched scrap directly spills to complete from counterdie and lathe lower table and unloads dropping material waste material;
5th step, then with aid, the workpiece workpiece of made 12 holes in advance (namely in the third step) is rotated 45o, second breach on alignment pin 12 is reserved by the protrusion in macropore in the middle of workpiece; Because 12 holes (namely workpiece is uniformly distributed 12 holes, the angle between two adjacent holes is 360o/12=30o) that workpiece first time evenly goes out in advance; And the angle between two locating notches on alignment pin 12 is 45o, just have rotated 45o-30o=15o angle like this relative to punching position;
6th step: start forcing press, cope match-plate pattern 2 runs downwards with lathe upper table, guide plate 8 is first workpiece pressing under the pressure effect of discharging rubber 7, then piercing punch 6 moves downward and to complete workpiece second time with punching concave die 11 and rush 12 holes (namely going out other 12 holes of workpiece), workpiece is taken out with aid, punched scrap spills from counterdie and lathe lower table, and such workpiece just completes the stamping-out in whole 24 holes.
7th step: be placed on die block 10 by the workpiece after another blanking-rush macropore operation, repeats the operation of step 2 to step 5.
Adopt the workpiece of the utility model Mould Machining, the relative dimensions such as each hole bur height, position degree, centre-to-centre spacing are all in the margin of tolerance.And sustainablely stable guarantee that N900 heavily reaches product drawing requirement in card back axle locking packing ring 24 hole.

Claims (7)

1. back axle locking packing ring two step punching 24 punch dies, comprise patrix and counterdie, it is characterized in that,
Described patrix comprises the die shank (1), cope match-plate pattern (2), upper padding plate (3) and the punch retainer (4) that are fastenedly connected successively from top to bottom; Described punch retainer (4) is staircase structural model, and step is up big and down small, and the lower step of punch retainer (4) is cylindricality, and described punch retainer (4) is circumferentially evenly provided with 12 piercing punches (6) around cylindricality step,
Described counterdie comprises the die block (10), counterdie backing plate (13) and the lower bolster (14) that are fastenedly connected successively from top to bottom,
Described die block (10) centrally be circumferentially evenly provided with 12 die locating holes, be provided with punching concave die (11) in die locating hole,
Automatic calibration guiding mechanism and shedding mechanism is provided with between described punch retainer (4) and die block (10);
Be punching station between the punching of described piercing punch (6) and punching concave die (11).
2. a kind of back axle locking packing ring two step punching according to claim 1 24 punch dies, it is characterized in that, described shedding mechanism comprises guide plate (8) and discharging rubber (7), the top of die block (10) is provided with guide plate (8), the counterdie body of piercing punch (6) and the middle via hole of guide plate (8) are slidably connected, the centre of the cylindricality ladder of described punch retainer (4) is provided with blind hole, before guide plate (8) and punch retainer (4), five discharging rubbers (7) are provided with between the blind hole that rear both sides and guide plate (8) and punch retainer (4) are provided with.
3. a kind of back axle locking packing ring two step punching according to claim 1 24 punch dies, it is characterized in that, described automatic calibration guiding mechanism is divided into the level correction mechanism of workpiece and the vertical correction mechanism of composite die, comprises guide plate (8), alignment pin (12), guide pin bushing (9) and guide pillar (5).
4. a kind of back axle locking packing ring two step punching according to claim 3 24 punch dies, it is characterized in that, the centre of die block (10) is provided with locating hole, and alignment pin (12) is connected by the locating hole of interference fit with die block (10); The middle lower portion of described guide plate (8) is provided with guiding shape chamber, and guiding shape chamber and alignment pin (12) matched in clearance form the level correction mechanism of workpiece.
5. a kind of back axle locking packing ring two step punching according to claim 4 24 punch dies, it is characterized in that, alignment pin (12) is provided with two locating notches, and the angle between the center line of two locating notches is 45o.
6. a kind of back axle locking packing ring two step punching according to claim 3 24 punch dies, it is characterized in that, described guide plate (8) both sides are provided with guide pillar hole, guide pillar hole and guide pillar (5) matched in clearance, guide pillar (5) is connected with punch retainer (4) by interference fit, described guide pin bushing (9) is connected by the guide pin bushing via hole of interference fit with die block (10), guide pin bushing (9) and the guide pillar (5) of the same side are in axial sliding connection, and guide pin bushing (9), guide plate (8) and guide pillar (5) form the vertical correction mechanism of composite die.
7. a kind of back axle locking packing ring two step punching according to claim 6 24 punch dies, it is characterized in that, the double-faced clearance of the guide pillar hole that described guide plate (8) both sides are provided with and guide pillar (5) matched in clearance is 0.10-0.12mm, guide pillar (5) is 0.08-0.10mm with the double-faced clearance of guide pin bushing (9), the double-faced clearance 0.64-0.66mm of piercing punch (6) and punching concave die (11).
CN201520974741.XU 2015-12-01 2015-12-01 Rear axle locking packing ring dashes 24 casement utensils for two steps CN205147022U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520974741.XU CN205147022U (en) 2015-12-01 2015-12-01 Rear axle locking packing ring dashes 24 casement utensils for two steps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520974741.XU CN205147022U (en) 2015-12-01 2015-12-01 Rear axle locking packing ring dashes 24 casement utensils for two steps

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CN205147022U true CN205147022U (en) 2016-04-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251867A (en) * 2015-12-01 2016-01-20 江西江铃底盘股份有限公司 Rear axle locking gasket die capable of punching 24 holes in two steps and machining process of die
CN106734612A (en) * 2016-12-21 2017-05-31 中国南方航空工业(集团)有限公司 Drawing punching composite die
CN107253019A (en) * 2017-05-09 2017-10-17 柳州申通汽车科技有限公司 The processing method of condenser heat exchanger fin
CN108724342A (en) * 2018-06-19 2018-11-02 中航飞机起落架有限责任公司 A kind of structure of compound mould

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251867A (en) * 2015-12-01 2016-01-20 江西江铃底盘股份有限公司 Rear axle locking gasket die capable of punching 24 holes in two steps and machining process of die
CN106734612A (en) * 2016-12-21 2017-05-31 中国南方航空工业(集团)有限公司 Drawing punching composite die
CN106734612B (en) * 2016-12-21 2019-03-01 中国南方航空工业(集团)有限公司 Drawing punching composite die
CN107253019A (en) * 2017-05-09 2017-10-17 柳州申通汽车科技有限公司 The processing method of condenser heat exchanger fin
CN108724342A (en) * 2018-06-19 2018-11-02 中航飞机起落架有限责任公司 A kind of structure of compound mould

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

Granted publication date: 20160413

Termination date: 20181201

CF01 Termination of patent right due to non-payment of annual fee