CN105251892A - Rear axle square plate blanking-pinching-coining composite die and machining process thereof - Google Patents

Rear axle square plate blanking-pinching-coining composite die and machining process thereof Download PDF

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Publication number
CN105251892A
CN105251892A CN201510859036.XA CN201510859036A CN105251892A CN 105251892 A CN105251892 A CN 105251892A CN 201510859036 A CN201510859036 A CN 201510859036A CN 105251892 A CN105251892 A CN 105251892A
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die
blanking
loading
punching
plate
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CN201510859036.XA
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CN105251892B (en
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邱庚龙
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Jiangxi Jiangling Chassis Co Ltd
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Jiangxi Jiangling Chassis Co Ltd
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Publication of CN105251892B publication Critical patent/CN105251892B/en
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Abstract

The invention discloses a rear axle square plate blanking-pinching-coining composite die which comprises an upper die body and a lower die body. The upper die body comprises a die shank, an upper die plate, an upper gasket, an upper base plate, a male die fixing plate and a female die fixing plate. A punching and coining male die device composed of a punching male die body and a plurality of coining male die bodies is arranged in the center of the male die fixing plate. A blanking female die body is arranged below the male die fixing plate and in the center of the female die fixing plate. The upper die body is further provided with an upper discharging mechanism. The lower die body comprises a composite die fixing plate, a lower base plate and a lower die plate which are fastened and connected in sequence from top to bottom. A blanking, punching and coining composite die body is arranged right in the center in the composite die fixing plate. A punching hole is formed in the center of the blanking, punching and coining composite die body, and coining groove holes are formed in the periphery of the blanking, punching and coining composite die body. A die head is a blanking male die body. An automatic correction guiding mechanism and a lower discharging mechanism are arranged between the male die fixing plate and the composite die fixing plate. According to the rear axle square plate blanking-pinching-coining composite die, the punching and coining process is stable, the machining accuracy is high, the appearance of a product is regular, and the production efficiency is greatly improved.

Description

A kind of back axle side's plate blanking-punching-impression composite die and processing technology thereof
Technical field
The invention belongs to machining equipment field, specifically relate to a kind of back axle side plate blanking-punching-impression composite die.
Background technology
Back axle side's plate is fixing on rear driving axle and one of the indispensable accessory supporting all kinds of oil pipe and wire harness, and it directly affects the layout of all kinds of oil pipe and wire harness and installs fixing.By fabrication processing traditional be at present: blanking → blanking-punching → convex point pressing, reaches product design requirement.This production technology production efficiency is low, and cost is high, and bad location during convex point pressing process operations, product quality is also more difficult reaches requirement.And traditional stamping die structure is guide pillar at present, guide pin bushing directly leads upper and lower template, die clearance controls by pincers worker manual skill completely, and such Mould Machining precision is difficult to ensure, and wastes time and energy undoubtedly.Therefore composite die and technique (i.e. guide pillar, the guide sleeve structure in Design of Dies automatic calibration gap that small stream footpath designs and produces out a kind of back axle side plate blanking-punching-impression can separately be warded off, the uniformity of upper and lower die clearance does not just control by pincers worker manual skill, but ensure by machine finish), enhance productivity, ensure product quality, just seem particularly important.
Summary of the invention
The object of the invention is to the deficiency optimizing existing production technology, adapt to reality need, a kind of back axle side plate blanking-punching-impression composite die is provided.
In order to realize object of the present invention, the technical solution used in the present invention is:
A kind of back axle side plate blanking-punching-impression composite die, comprises patrix and counterdie,
Described patrix comprises the die shank, cope match-plate pattern, upper gasket, upper padding plate, punch retainer and the die block that are fastenedly connected successively from top to bottom;
The piercing punch that the centre of described punch retainer is provided with and some equally distributed embossing male dies composition punching embossing male die devices, below described punch retainer and the centre of die block is provided with blanking die; Loading and unloading material mechanism is also provided with in described patrix;
Described counterdie comprises the compound die fixed head, lower bolster and the lower bolster that are fastenedly connected successively from top to bottom, the middle, inside of described compound die fixed head is provided with a blanking and punching impression compound die, punching is provided with in the middle of blanking and punching impression compound die, surrounding is provided with embossed grooves hole, and die head is blanking punch;
Automatic calibration guiding mechanism and lower shedding mechanism is provided with between described punch retainer and compound die fixed head; Being punching station between the punching that described piercing punch and blanking and punching impress compound die, is printing station between the embossed grooves hole that embossing male die and blanking and punching impress compound die, is blanking station between the die head that blanking die and blanking and punching impress compound die.
Described loading and unloading material mechanism comprises loading and unloading material block, loading and unloading material meta bar, loading and unloading material meta plate and loading and unloading material bar, blanking die is groove structure, the die cavity longitudinal section formed in groove is inverted "convex" shape, loading and unloading material block is provided with in die cavity, loading and unloading material block and die cavity are slidably connected, the top of described loading and unloading material block is provided with loading and unloading material meta bar, and loading and unloading material meta bar is connected with the middle via hole longitudinal sliding motion of punch retainer and upper padding plate; The top of described loading and unloading material meta bar is provided with loading and unloading material meta plate, loading and unloading material meta plate is arranged in the intermediate discharging through hole of upper gasket, the material through hole that unloads of loading and unloading material meta plate and upper gasket is slidably connected, the top of described loading and unloading material meta plate is provided with loading and unloading material bar, and loading and unloading material bar is connected with via hole longitudinal sliding motion in the middle of die shank.
Described lower shedding mechanism comprises lower guiding stripper and lower discharging rubber, the top of compound die fixed head is provided with lower guiding stripper, the blanking and punching impression patrix body of compound die and the middle via hole of lower guiding stripper are slidably connected, and are provided with four lower discharging rubbers between described lower guiding stripper and compound die fixed head.
Described automatic calibration guiding mechanism is divided into the level correction mechanism of workpiece and the vertical correction mechanism of composite die, comprises lower guiding stripper, guide pin bushing and guide pillar.
Described lower guiding stripper be arranged on compound die fixed head top and between be arranged with lower discharging rubber, described lower guiding stripper is provided with the level correction mechanism that three equally distributed pin stop form workpiece.
Three equally distributed pin stop, wherein two pieces is arranged on the fore-and-aft direction in the middle of lower guiding stripper upper surface on the right side of via hole, and another part is arranged on the dead astern of middle via hole.
Described lower guiding stripper be arranged on compound die fixed head top and between be arranged with lower discharging rubber, the middle via hole be provided with in the middle of described lower guiding stripper is guiding shape chamber, guiding shape chamber and blanking and punching impress compound die matched in clearance, described lower guiding stripper both sides are provided with guide pillar hole, guide pillar hole and guide pillar matched in clearance, described guide pin bushing is connected with the guide pin bushing via hole of punch retainer and die block respectively by interference fit, guide pillar is connected with compound die fixed head by interference fit, guide pin bushing and the guide pillar of the same side are in axial sliding connection, guide pin bushing, lower guiding stripper and guide pillar form the vertical correction mechanism of composite die.
The double-faced clearance that guiding shape chamber and blanking and punching impress compound die matched in clearance is 0.10-0.12mm, the double-faced clearance of the guide pillar hole that described lower guiding stripper both sides are provided with and guide pillar matched in clearance is 0.16-0.18mm, and the double-faced clearance of guide pillar and guide pin bushing is 0.08-0.10mm.
Described compound die fixed head is hollow staircase structural model, and step is up-small and down-big.
Beneficial effect of the present invention is:
1. the structure of blanking punch of the present invention, punching concave die and impression die composite integrated makes back axle side's plate blank material while blanking, realize punching and impression, and the plate blank material punching of back axle side and moulding process are stablized, ensure that centre bore and the impression bump location degree of back axle side's plate are stable regular with face shaping, guide pillar, the guide sleeve structure in automatic calibration gap simultaneously, ensure that machining accuracy, decrease the labour intensity of workman.
2. three process is optimized for a procedure, activity time can be shortened, promote productive temp, strengthen production capacity, reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of counterdie of the present invention;
Fig. 3 is the main TV structure schematic diagram of processing rear brake line bracket backing plate;
Fig. 4 is the plan structure schematic diagram of processing rear brake line bracket backing plate;
In figure, die shank 1, cope match-plate pattern 2, loading and unloading material bar 3, upper gasket 4, loading and unloading material meta plate 5, upper padding plate 6, loading and unloading material meta bar 7, punch retainer 8, guide pin bushing 9, piercing punch 10, loading and unloading material block 11, embossing male die 12, blanking die 13, pin stop 14, lower guiding stripper 15, guide pillar 16, die block 17, blanking and punching impression compound die 18, compound die fixed head 19, lower bolster 20, lower bolster 21, lower discharging rubber 22.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment: see Fig. 1-Fig. 4.
A kind of back axle side plate blanking-punching-impression composite die, comprise patrix and counterdie, patrix comprises the die shank 1, cope match-plate pattern 2, upper gasket 4, upper padding plate 6, punch retainer 8 and the die block 17 that are fastenedly connected successively from top to bottom; The piercing punch 10 that the centre of described punch retainer 8 is provided with and some equally distributed embossing male dies 12 form punching embossing male die device, and below described the punch retainer 8 and centre of die block 17 is provided with blanking die 13; Loading and unloading material mechanism is also provided with in described patrix; Described counterdie comprises the compound die fixed head 19, lower bolster 20 and the lower bolster 21 that are fastenedly connected successively from top to bottom, the middle, inside of described compound die fixed head 19 is provided with a blanking and punching impression compound die 18, punching is provided with in the middle of blanking and punching impression compound die 18, surrounding is provided with embossed grooves hole, and die head is blanking punch; Automatic calibration guiding mechanism and lower shedding mechanism is provided with between described punch retainer 8 and compound die fixed head 19; Be punching station between the punching that described piercing punch 10 and blanking and punching impress compound die 18, being printing station between the embossed grooves hole that embossing male die 12 and blanking and punching impress compound die 18, is blanking station between the die head that blanking die 13 and blanking and punching impress compound die 18.
Described loading and unloading material mechanism comprises loading and unloading material block 11, loading and unloading material meta bar 7, loading and unloading material meta plate 5 and loading and unloading material bar 3, blanking die 13 is groove structure, the die cavity longitudinal section formed in groove is inverted "convex" shape, loading and unloading material block 11 is provided with in die cavity, loading and unloading material block 11 and die cavity are slidably connected, the top of described loading and unloading material block 11 is provided with loading and unloading material meta bar 7, and loading and unloading material meta bar 7 is connected with the middle via hole longitudinal sliding motion of punch retainer 8 and upper padding plate 6; The top of described loading and unloading material meta bar 7 is provided with loading and unloading material meta plate 5, loading and unloading material meta plate 5 is arranged in the intermediate discharging through hole of upper gasket 4, loading and unloading material meta plate 5 is slidably connected with the material through hole that unloads of upper gasket 4, the top of described loading and unloading material meta plate 5 is provided with loading and unloading material bar 3, and loading and unloading material bar 3 is connected with the middle via hole longitudinal sliding motion of die shank 1.
Described lower shedding mechanism comprises lower guiding stripper 15 and lower discharging rubber 22, the top of compound die fixed head 19 is provided with lower guiding stripper 15, the blanking and punching impression patrix body of compound die 18 and the middle via hole of lower guiding stripper 15 are slidably connected, and are provided with four lower discharging rubbers 22 between described lower guiding stripper 15 and compound die fixed head 19.
Described automatic calibration guiding mechanism is divided into the level correction mechanism of workpiece and the vertical correction mechanism of composite die, comprises lower guiding stripper 15, guide pin bushing 9 and guide pillar 16.
Described lower guiding stripper 15 is provided with the level correction mechanism that three equally distributed pin stop 14 form workpiece.
Three equally distributed pin stop 14, wherein two pieces is arranged on the fore-and-aft direction in the middle of lower guiding stripper 15 upper surface on the right side of via hole, and another part is arranged on the dead astern of middle via hole.
Described lower guiding stripper 15 is established and be arranged with lower discharging rubber 22 between compound die fixed head 19, the middle via hole be provided with in the middle of described lower guiding stripper 15 is guiding shape chamber, guiding shape chamber and blanking and punching impress compound die 18 matched in clearance, described lower guiding stripper 15 both sides are provided with guide pillar hole, guide pillar hole and guide pillar 16 matched in clearance, described guide pin bushing 9 is connected with the guide pin bushing via hole of punch retainer 8 and die block 17 respectively by interference fit, guide pillar 16 is connected with compound die fixed head 19 by interference fit, guide pin bushing 9 and the guide pillar 16 of the same side are in axial sliding connection, guide pin bushing 9, lower guiding stripper 15 and guide pillar 16 form the vertical correction mechanism of composite die.
The double-faced clearance that guiding shape chamber and blanking and punching impress compound die 18 matched in clearance is 0.10-0.12mm, the double-faced clearance of the guide pillar hole that described lower guiding stripper 15 both sides are provided with and guide pillar 16 matched in clearance is 0.16-0.18mm, and guide pillar 16 is 0.08-0.10mm with the double-faced clearance of guide pin bushing 9.
Described compound die fixed head 19 is hollow staircase structural model, and step is up-small and down-big.
Procedure of processing of the present invention 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, top back axle side's plate blank material being placed on blanking and punching impression compound die 18 also covers the groove port of blanking punch 9 completely, also will locate side end face and the front end face of back axle side's plate blank material with pin stop 14;
3rd step, start forcing press and punch process is carried out to back axle side's plate blank material, press ram is with piercing punch 10, embossing male die 12, blanking die 9, loading and unloading material block 11, loading and unloading material meta bar 7, loading and unloading material meta plate 5 and loading and unloading material bar (3) move downward, when piercing punch 10, when embossing male die 12 and blanking die 9 contact with back axle side's plate blank material, loading and unloading material block 11 is with loading and unloading material meta bar 7, loading and unloading material meta plate 5 and loading and unloading material bar 3 move upward, meanwhile lower guiding stripper 15 moves downward with pin stop 14 and back axle side's plate blank material, piercing punch 10 and blanking and punching impress compound die 18 and complete blanking and punching operation, when press ram continues to move to stop downwards, embossing male die 12) impress compound die 18 complete embossing process steps with blanking and punching,
4th step, forcing press is risen, press bench wears piercing punch 10, embossing male die 12, blanking die 9, loading and unloading material block 11, loading and unloading material meta bar 7, loading and unloading material meta plate 5, loading and unloading material bar 3 and back axle side's plate blank material upwards return, the resistance that loading and unloading material bar 3 is subject to the horizontal discharge arm on lathe top is transferred with loading and unloading material meta plate 5, loading and unloading material meta bar 7 and loading and unloading material block 11 move downward, back axle side's plate blank material that punching becomes by loading and unloading material block 11 shoots down from blanking die 9 inner chamber, after lower guiding stripper 15 is subject to the compression of lower discharging rubber 22, resilience thrust is upwards with pin stop 14 and back axle side's plate blank material upwards return, and punched scrap is directly unloaded dropping material waste material from completing counterdie and lathe lower table spill by lower guiding stripper 15 under the effect of discharging rubber 22 elastic force,
5th step, the upper surface from blanking and punching impression compound die 18 laterally dialled laterally by back axle side's plate punching become with back axle side's plate blank material, and loads in body feed tank.
The brake pipe bracket backing plate appearance and size adopting automobile axle brake pipe bracket backing plate blanking and punching of the present invention to impress composite die making is stabilized in blanking length 30mm, blanking width 30mm, centre bore aperture φ 17mm, four bulb shape impression salient point external diameter φ 3.5mm, four bulb shape impression salient point height 0.7mm, impression salient point transverse pitch 22mm, impression salient point longitudinal pitch 22mm, the uniformity of monnolithic case is regular, the sustainable stable length guaranteeing brake pipe bracket backing plate profile, width, centre bore aperture, the impression large low height of bulb and position degree reach the designing requirement of product drawing.The present invention is sustainable stable guarantees that NKR light card back axle side plate reaches product drawing designing requirement.And being combined as a procedure by traditional two procedures, production efficiency improves 72%, improves 12 times die life, constant product quality, and saves the mould development expense of a set of operation.

Claims (10)

1. back axle side's plate blanking-punching-impression composite die, comprises patrix and counterdie, it is characterized in that,
Described patrix comprises the die shank (1), cope match-plate pattern (2), upper gasket (4), upper padding plate (6), punch retainer (8) and the die block (17) that are fastenedly connected successively from top to bottom;
The piercing punch (10) that the centre of described punch retainer (8) is provided with and some equally distributed embossing male dies (12) composition punching embossing male die devices, the centre of described punch retainer (8) below and die block (17) is provided with blanking die (13); Loading and unloading material mechanism is also provided with in described patrix;
Described counterdie comprises the compound die fixed head (19), lower bolster (20) and the lower bolster (21) that are fastenedly connected successively from top to bottom, the middle, inside of described compound die fixed head (19) is provided with blanking and punching impression compound die (18), punching is provided with in the middle of blanking and punching impression compound die (18), surrounding is provided with embossed grooves hole, and die head is blanking punch;
Automatic calibration guiding mechanism and lower shedding mechanism is provided with between described punch retainer (8) and compound die fixed head (19);
Be punching station between the punching that described piercing punch (10) and blanking and punching impress compound die (18), being printing station between the embossed grooves hole that embossing male die (12) and blanking and punching impress compound die (18), is blanking station between the die head that blanking die (13) and blanking and punching impress compound die (18).
2. a kind of back axle side according to claim 1 plate blanking-punching-impression composite die, it is characterized in that, described loading and unloading material mechanism comprises loading and unloading material block (11), loading and unloading material meta bar (7), loading and unloading material meta plate (5) and loading and unloading material bar (3), blanking die (13) is groove structure, the die cavity longitudinal section formed in groove is inverted "convex" shape, loading and unloading material block (11) is provided with in die cavity, loading and unloading material block (11) and die cavity are slidably connected, the top of described loading and unloading material block (11) is provided with loading and unloading material meta bar (7), loading and unloading material meta bar (7) is connected with the middle via hole longitudinal sliding motion of punch retainer (8) and upper padding plate (6), the top of described loading and unloading material meta bar (7) is provided with loading and unloading material meta plate (5), loading and unloading material meta plate (5) is arranged in the intermediate discharging through hole of upper gasket (4), loading and unloading material meta plate (5) is slidably connected with the material through hole that unloads of upper gasket (4), the top of described loading and unloading material meta plate (5) is provided with loading and unloading material bar (3), and loading and unloading material bar (3) is connected with via hole longitudinal sliding motion in the middle of die shank (1).
3. a kind of back axle side according to claim 1 plate blanking-punching-impression composite die, it is characterized in that, described lower shedding mechanism comprises lower guiding stripper (15) and lower discharging rubber (22), the top of compound die fixed head (19) is provided with lower guiding stripper (15), the patrix body of blanking and punching impression compound die (18) and the middle via hole of lower guiding stripper (15) are slidably connected, and are provided with four lower discharging rubbers (22) between described lower guiding stripper (15) and compound die fixed head (19).
4. a kind of back axle side according to claim 1 plate blanking-punching-impression composite die, 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 lower guiding stripper (15), guide pin bushing (9) and guide pillar (16).
5. a kind of back axle side according to claim 4 plate blanking-punching-impression composite die, it is characterized in that, described lower guiding stripper (15) be arranged on compound die fixed head (19) top and between be arranged with lower discharging rubber (22), described lower guiding stripper (15) is provided with the level correction mechanism that three equally distributed pin stop (14) form workpiece.
6. a kind of back axle side according to claim 5 plate blanking-punching-impression composite die, it is characterized in that, three equally distributed pin stop (14), wherein two pieces is arranged on the fore-and-aft direction in the middle of lower guiding stripper (15) upper surface on the right side of via hole, and another part is arranged on the dead astern of middle via hole.
7. a kind of back axle side according to claim 4 plate blanking-punching-impression composite die, it is characterized in that, described lower guiding stripper (15) be arranged on compound die fixed head (19) top and between be arranged with lower discharging rubber (22), the middle via hole be provided with in the middle of described lower guiding stripper (15) is guiding shape chamber, guiding shape chamber and blanking and punching impress compound die (18) matched in clearance, described lower guiding stripper (15) both sides are provided with guide pillar hole, guide pillar hole and guide pillar (16) matched in clearance, described guide pin bushing (9) is connected with the guide pin bushing via hole of punch retainer (8) and die block (17) respectively by interference fit, guide pillar (16) is connected with compound die fixed head (19) by interference fit, guide pin bushing (9) and the guide pillar (16) of the same side are in axial sliding connection, guide pin bushing (9), lower guiding stripper (15) and guide pillar (16) form the vertical correction mechanism of composite die.
8. a kind of back axle side according to claim 7 plate blanking-punching-impression composite die, it is characterized in that, the double-faced clearance that guiding shape chamber and blanking and punching impress compound die (18) matched in clearance is 0.10-0.12mm, the double-faced clearance of the guide pillar hole that described lower guiding stripper (15) both sides are provided with and guide pillar (16) matched in clearance is 0.16-0.18mm, and guide pillar (16) is 0.08-0.10mm with the double-faced clearance of guide pin bushing (9).
9. a kind of back axle side according to claim 1 plate blanking-punching-impression composite die, is characterized in that, described compound die fixed head (19) is hollow staircase structural model, and step is up-small and down-big.
10. a processing technology for back axle side's plate blanking-punching-impression composite die, is characterized in that,
The first step, is arranged on single-point open type steam-operating forcing press by this mould;
Second step, blanking, is placed on the top of blanking and punching impression compound die (18) and covers the groove port of blanking punch (9) completely by back axle side's plate blank material, will and use side end face and the front end face of pin stop (14) location back axle side plate blank material;
3rd step, start forcing press and punch process is carried out to back axle side's plate blank material, press ram is with piercing punch (10), embossing male die (12), blanking die (9), loading and unloading material block (11), loading and unloading material meta bar (7), loading and unloading material meta plate (5) and loading and unloading material bar (3) move downward, when piercing punch (10), when embossing male die (12) and blanking die (9) contact with back axle side's plate blank material, loading and unloading material block (11) is with loading and unloading material meta bar (7), loading and unloading material meta plate (5) and loading and unloading material bar (3) move upward, the stripper (15) that meanwhile leads down moves downward with pin stop (14) and back axle side's plate blank material, piercing punch (10) and blanking and punching impress compound die (18) and complete blanking and punching operation, when press ram continues to move to stop downwards, embossing male die (12) and blanking and punching impress compound die (18) and complete embossing process steps,
4th step, forcing press is risen, press bench wears piercing punch (10), embossing male die (12), blanking die (9), loading and unloading material block (11), loading and unloading material meta bar (7), loading and unloading material meta plate (5), loading and unloading material bar (3) and back axle side's plate blank material upwards return, the resistance that loading and unloading material bar (3) is subject to the horizontal discharge arm on lathe top is transferred with loading and unloading material meta plate (5), loading and unloading material meta bar (7) and loading and unloading material block (11) move downward, back axle side's plate blank material that punching becomes by loading and unloading material block (11) shoots down from blanking die (9) inner chamber, after lower guiding stripper (15) is subject to the compression of lower discharging rubber (22), resilience thrust is upwards with pin stop (14) and back axle side's plate blank material upwards return, and punched scrap is directly unloaded dropping material waste material from completing counterdie and lathe lower table spill by lower guiding stripper (15) under discharging rubber (22) elastic force effect,
5th step, the upper surface from blanking and punching impression compound die (18) laterally dialled laterally by back axle side's plate punching become with back axle side's plate blank material, and loads in body feed tank.
CN201510859036.XA 2015-12-01 2015-12-01 Rear axle square plate blanking-pinching-coining composite die and machining process thereof Expired - Fee Related CN105251892B (en)

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CN105689533A (en) * 2016-03-14 2016-06-22 昆山邦泰汽车零部件制造有限公司 Fixed discharging type stamping die
CN107186076A (en) * 2017-06-20 2017-09-22 江西江铃底盘股份有限公司 A kind of brake oil pipe holder blanking punching scallop composite die and combination process
CN107344196A (en) * 2016-08-24 2017-11-14 杭州自强链传动有限公司 The punching print die and punching Method of printing of a kind of board-like intermediate plate
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CN112605232A (en) * 2020-11-30 2021-04-06 嘉兴星环汽车零部件有限公司 General type flip-chip compound die

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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
CN103752698A (en) * 2013-12-31 2014-04-30 慈溪市龙山汽配有限公司 Motor housing continuous die
CN205147096U (en) * 2015-12-01 2016-04-13 江西江铃底盘股份有限公司 Compound mould of rear axle side's board blanking - punching a hole - impression

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* Cited by examiner, † Cited by third party
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CN105689533A (en) * 2016-03-14 2016-06-22 昆山邦泰汽车零部件制造有限公司 Fixed discharging type stamping die
CN107344196A (en) * 2016-08-24 2017-11-14 杭州自强链传动有限公司 The punching print die and punching Method of printing of a kind of board-like intermediate plate
CN107186076A (en) * 2017-06-20 2017-09-22 江西江铃底盘股份有限公司 A kind of brake oil pipe holder blanking punching scallop composite die and combination process
CN109351863A (en) * 2018-11-15 2019-02-19 江西江铃底盘股份有限公司 A kind of Automobile drive rear axle brake vi dust cover composite die and combination process
CN112605232A (en) * 2020-11-30 2021-04-06 嘉兴星环汽车零部件有限公司 General type flip-chip compound die

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