CN206838865U - A kind of automobile drive axle adjusting nut Blanking Punching Compound Die - Google Patents

A kind of automobile drive axle adjusting nut Blanking Punching Compound Die Download PDF

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Publication number
CN206838865U
CN206838865U CN201720689159.8U CN201720689159U CN206838865U CN 206838865 U CN206838865 U CN 206838865U CN 201720689159 U CN201720689159 U CN 201720689159U CN 206838865 U CN206838865 U CN 206838865U
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CN
China
Prior art keywords
die
blanking
plate
cope plate
punching
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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
Application number
CN201720689159.8U
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Chinese (zh)
Inventor
邹函滔
欧长高
曾山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Jiangling Chassis Co Ltd
Original Assignee
Jiangxi Jiangling Chassis Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangxi Jiangling Chassis Co Ltd filed Critical Jiangxi Jiangling Chassis Co Ltd
Priority to CN201720689159.8U priority Critical patent/CN206838865U/en
Application granted granted Critical
Publication of CN206838865U publication Critical patent/CN206838865U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Abstract

The utility model discloses a kind of automobile drive axle adjusting nut Blanking Punching Compound Die, an excellent power rubber and a cope plate die pad are provided between cope plate backing plate and cope plate, a loading and unloading material block is provided between blanking die and piercing punch, loading and unloading material block is fastenedly connected with four caging bolts, excellent power rubber, cope plate die pad, four caging bolts and loading and unloading material block collectively form automatic type loading and unloading material device, the inside of blanking die is provided with four interior guide pin bushings, longitudinal direction is provided with the left of the upper surface of lower stripper and is provided with a guide pin in the four guide pins and front middle part of straight line, a guide pin stage clip is all provided with below five guide pins, blanking die, piercing punch and blanking and punching punch-die collectively constitute the blanking and punching die cavity of adjusting nut.The utility model effectively strengthens the stability of mould discharging, improves die life, product appearance shape is regular and strength character is stable;Maloperation can effectively be prevented.

Description

A kind of automobile drive axle adjusting nut Blanking Punching Compound Die
Technical field
The utility model belongs to machining equipment field, is related to a kind of composite die of adjusting nut blanking and punching, special It is not related to a kind of composite die of automobile drive axle adjusting nut blanking and punching.
Background technology
The adjusting nut of automobile drive axle is mounted on the component of final drive casing and main reducing gear cap composition, mainly Effect is to adjust the installation site of differential bearing, while plays a part of strengthening differential case bearing bracket rigidity.
The traditional mode of production of adjusting nut is that point six procedures are processed, and it first implements process using single-point plate shearing machine One blanking is processed, and then implements the processing of the blanking of process two using single-point open type steam-operating forcing press, then using single-point open type steam-operating pressure Power machine implements process three and rushes center hole machined, then implements the processing of process four drawing and forming using Closed Hydraulic machine, followed by adopting Implement the punching installation hole machined of process five with single-point open type steam-operating forcing press, finally implementing six cylindrical thread of process using lathe adds Work.Using traditional processing technology, not only time-consuming for production, but also multiple material dispensing is come and gone between multiple devices, raw Produce less efficient.
The utility model is based on optimization property existing for production technology in the prior art and considered, designs a kind of adjustment spiral shell The composite die of female blanking and punching, blank blanking and punching process stabilization can be made, so can meet production adjustment by designing one kind The composite die of nut blanking and punching, improves the production efficiency of product, just seems very necessary.
Utility model content
The purpose of this utility model is the deficiency for optimizing existing production technology, adapts to real needs, there is provided a kind of automobile The composite die of drive axle adjusting nut blanking and punching.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of automobile drive axle adjusting nut Blanking Punching Compound Die, including upper mould and lower mould, upper mould wrap from top to bottom Include the cope plate backing plate being fastenedly connected successively, cope plate laminate, cope plate, upper padding plate, blanking die and piercing punch, lower mould from The up to lower lower stripper for including being fastenedly connected successively, lower discharging spring, inner guiding post, blanking and punching punch-die, lower bolster and under Template, an excellent power rubber and a cope plate die pad, blanking die and punching are provided between cope plate backing plate and cope plate A loading and unloading material block is provided between punch-pin, loading and unloading material block is fastenedly connected with four caging bolts, excellent power rubber, cope plate liftout Plate, four caging bolts and loading and unloading material block collectively form automatic type loading and unloading material device, and the inside of blanking die, which is provided with four, leads Set, the upper surface left side of lower stripper are provided with longitudinal direction and are provided with a guide in the four guide pins and front middle part of straight line Pin, five guide pins lower sections are all provided with a guide pin stage clip, blanking die, piercing punch and common group of blanking and punching punch-die Into the blanking and punching die cavity of adjusting nut.
Further, the inside of blanking die it is front and rear and it is symmetrical be provided with four interior guide pin bushings, it is front and rear and left inside lower bolster The right side is arranged with four inner guiding posts, and four inner guiding posts and four interior guide pin bushings are all to reduce the guide pillar guide sleeve structure that gap coordinates, under Longitudinal direction is provided with the left of the upper surface of stripper and is provided with a guide pin in the four guide pins and front middle part of straight line, five A guide pin stage clip is all provided with below guide pin, guide pillar guide sleeve structure and elastic conducting are installed inside this lower bolster and blanking die Material latch structure can ensure that die point gap stably effectively improves die life for a long time.
Further, the lower left corner of cope plate, upper padding plate and blanking die lower surface is all provided with L-type circular hole, lower stripper, The lower left corner of lower bolster and lower template upper surface is all provided with L-type circular hole, needs each part for stacking installation to be furnished with L in this upper and lower mould Shape circular hole counnter attack mark structure can effectively prevent that fore-and-aft direction installs reverse maloperation generation when mould from assembling.
Further, cope plate is fastened by bolts symmetrically erects installed in the lower section of cope plate backing plate, two pieces cope plate laminate The straight centre for being placed on cope plate backing plate and cope plate, upper padding plate are arranged on the lower section of cope plate by bolt and alignment pin, fallen Expect that cavity plate is arranged on the lower section of upper padding plate by bolt and alignment pin, piercing punch is arranged on upper padding plate by bolt and alignment pin Lower section and blanking die blanking die cavity middle, excellent power rubber and cope plate die pad lie in a horizontal plane in cope plate successively Top and the lower section of cope plate backing plate, loading and unloading material block and four pass through cope plate and the caging bolt of upper padding plate middle via fastens Connection be arranged in die cavity between blanking die and piercing punch and with blanking die and piercing punch be all gap coordinate and Slide up and down connection, before and after four and symmetrical interior guide pin bushing is by being interference fitted installed in the inside of blanking die and upper pad The lower section of plate.
Further, blanking and punching punch-die is fastened on the top of lower bolster by bolt and alignment pin, and lower bolster leads to Cross bolt and alignment pin is fastened on the top of lower template, before and after four and symmetrical inner guiding post passes through and is interference fitted peace Mounted in the inside of lower bolster and the top of lower template, lower stripper is fastenedly connected in the upper of lower bolster by four caging bolts Side, the middle via of lower stripper and four inner guiding posts are all that gap cooperation and sliding up and down is connected, and the discharging of lower stripper allows Position groove and blanking and punching punch-die are that gap cooperation and sliding up and down is connected, before and after six and symmetrical lower discharging spring water Placing flat is in lower stripper and the centre of lower template and its upper end is placed in the blind hole inside lower stripper and its bottom It is placed in the through hole inside lower bolster, it is in straight line that the upper surface of lower stripper, which passes on left gap cooperation to be provided with longitudinal direction, Four guide pins and front middle part coordinated by gap a guide pin be installed, five guide pins all with inside lower stripper Via slide up and down connection and all horizontal positioned guide pin stage clip below, the upper end of guide pin stage clip is enclosed on guide The step boss outer end and its bottom for selling bottom are placed in the blind hole inside lower bolster.
Further, guide pillar guide sleeve structure is provided between upper mould and lower mould, template guide pin bushing passes through interference fit and upper mould Plate is connected, and template guide pillar is connected by being interference fitted with lower template.
The beneficial effects of the utility model are:
1. automatic type loading and unloading material device of the present utility model can effectively strengthen the stability of mould discharging, lower bolster and blanking Installation guide pillar guide sleeve structure and elastic guide latch structure can ensure that die point gap stably effectively improves mould for a long time inside cavity plate Have service life, the process stabilization of blank blanking and punching can be made, ensure that the face shaping of adjusting nut is regular and strength character is steady It is fixed;
2. each part for stacking installation is needed to have equipped with L-shaped circular hole counnter attack mark structure in upper and lower mould of the present utility model Effect prevents that fore-and-aft direction installs reverse maloperation generation when mould from assembling;
3. blanking, punching two procedures can be optimized for one of blanking and punching by blanking and punching composite construction of the present utility model Process, lifting productive temp, increase production capacity, reduce production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Blanking Punching Compound Die;
Fig. 2 is the part of the lower die overlooking the structure diagram of the utility model embodiment 1;
Fig. 3 is the main structure diagram after workpiece blanking and punching;
Fig. 4 is the overlooking the structure diagram after workpiece blanking and punching;
In figure, cope plate backing plate 1, cope plate laminate 2, excellent power rubber 3, cope plate die pad 4, cope plate 5, template guide pin bushing 6, upper padding plate 7, blanking die 8, interior guide pin bushing 9, piercing punch 10, loading and unloading material block 11, guide pin 12, lower discharging spring 13, guide Stage clip 14 is sold, inner guiding post 15, template guide pillar 16, lower stripper 17, blanking and punching punch-die 18, lower bolster 19, lower template 20, is adjusted Whole nut blank 21, adjusting nut 22, adjusting nut waste material 23.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples:
Embodiment:Referring to Fig. 1-Fig. 4.
The utility model discloses a kind of automobile drive axle adjusting nut Blanking Punching Compound Die, including upper mould is with Mould, upper mould include cope plate backing plate 1, cope plate laminate 2, cope plate 5, upper padding plate 7, the blanking being fastenedly connected successively from top to bottom Cavity plate 8 and piercing punch 10, lower stripper 17 that lower mould includes being fastenedly connected successively from top to bottom, lower discharging spring 13, interior lead Post 15, blanking and punching punch-die 18, lower bolster 19 and lower template 20, an excellent power is provided between cope plate backing plate 1 and cope plate 5 Rubber 3 and a cope plate die pad 4, a loading and unloading material block 11, blanking die are provided between blanking die 8 and piercing punch 10 8 inside is provided with four interior guide pin bushings 9, and four guide pins 12 that longitudinal direction is in straight line are provided with the left of the upper surface of lower stripper 17 A guide pin 12 is provided with front middle part, five lower sections of guide pins 12 are all provided with a guide pin stage clip 14, blanking die 8, Piercing punch 10 and blanking and punching punch-die 18 collectively constitute the blanking and punching die cavity of adjusting nut 22.
Guide pillar guide sleeve structure is provided between upper mould and lower mould, template guide pin bushing 6 connects by being interference fitted with cope plate 5 Connect, template guide pillar 16 is connected by being interference fitted with lower template 20.
Cope plate 5 is fastened by bolts symmetrically to be put vertically installed in the lower section of cope plate backing plate 1, two pieces cope plate laminate 2 The centre in cope plate backing plate 1 and cope plate 5 is put, upper padding plate 7 is arranged on the lower section of cope plate 5 by bolt and alignment pin, fallen Expect that cavity plate 8 is arranged on the lower section of upper padding plate 7 by bolt and alignment pin, piercing punch 10 is arranged on upper by bolt and alignment pin The lower section of backing plate 7 and the middle of the blanking die cavity of blanking die 8, excellent power rubber 3 and cope plate die pad 4 are lain in a horizontal plane in successively The top of cope plate 5 and the lower section of cope plate backing plate 1, loading and unloading material block 11 and four pass through cope plate 5 and the middle via of upper padding plate 7 Caging bolt be fastenedly connected in the die cavity between blanking die 8 and piercing punch 10 and with blanking die 8 and punching Punch-pin 10 is all that gap coordinates and slides up and down connection, and before and after four and symmetrical interior guide pin bushing 9 is installed by being interference fitted In the inside of blanking die 8 and the lower section of upper padding plate 7;Blanking and punching punch-die 18 is fastened on down by bolt and alignment pin The top of backing plate 19, lower bolster 19 are fastened on the top of lower template 20 by bolt and alignment pin, before and after four and left and right Symmetrical inner guiding post 15 is passed through by being interference fitted the top installed in the inside of lower bolster 19 and lower template 20, lower stripper 17 Four caging bolts are fastenedly connected in the top of lower bolster 19, between the middle via of lower stripper 17 and four inner guiding posts 15 are all Gap coordinates and slides up and down connection, and discharging slot to make way and the blanking and punching punch-die 18 of lower stripper 17 are that gap coordinates and upper and lower It is slidably connected, before and after six and symmetrical lower discharging spring 13 lies in a horizontal plane in the centre of lower stripper 17 and lower template 20 And its upper end is placed in the blind hole inside lower stripper 17 and its bottom is placed in the through hole inside lower bolster 19, under The upper surface of stripper 17 passes on left gap and coordinates the four guide pins 12 and front middle part for being provided with that longitudinal direction is in straight line Coordinated by gap and a guide pin 12 is installed, five guide pins 12 all slide up and down company with the via inside lower stripper 17 Connect and all horizontal positioned guide pin stage clip 14 below, the upper end of guide pin stage clip 14 is enclosed on the bottom of guide pin 12 Step boss outer end and its bottom are placed in the blind hole inside lower bolster 19.
The operation principle of utility model is summarized as follows:
The adjusting nut of such certain two drive diesel oil major axis pickup truck type drive axle is added by the thick hot rolled plates of 4.5mm are stamped Work is made, and the processing of Blanking Punching Compound Die can be used for after blanking procedure:
The first step, automobile drive axle adjusting nut Blanking Punching Compound Die of the present utility model is opened installed in single-point On formula steam-operating 160T forcing presses.
Second step, the adjusting nut blank 21 after blanking procedure is placed on the lower top of stripper 17 and covers all Expect the blanking exocoel of punching punch-die 18, and the front end face of adjusting nut blank 21 is nestled up the guide pin 12 of front portion, left side End face nestles up the guide pin 12 in left side.
3rd step, start forcing press and punch process is carried out to adjusting nut blank 21, workbench, blanking die on lathe 8th, piercing punch 10 and loading and unloading material block 11 move downwardly together, and in the process, inner guiding post 15 is introduced into the inside of interior guide pin bushing 9, Then when blanking die 8 contacts with guide pin 12, guide pin 12 pushes away with guide pin stage clip 14 because compression resilience is upward Power moves downward, then when loading and unloading material block 11 contacts with adjusting nut blank 21 cope plate die pad 4 with excellent power rubber 3 because The downward thrust of compression resilience is moved upwards with four caging bolts and loading and unloading material block 11, at the same time, lower stripper 17 with lower discharging spring 13 because the upward thrust of compression resilience and adjusting nut blank 21 are moved downwardly together, Zhi Daoji Untill workbench runs to bottom dead centre on bed, make adjusting nut 22 in blanking die 8, piercing punch 10 and blanking and punching convex-concave Blanking and punching are completed simultaneously in the presence of between mould 18, reaches the mm of outside diameter φ 97.02, the mm of diameter of bore φ 42.20, After blanking and punching, the structure of workpiece is as shown in Figure 3, Figure 4.
4th step, forcing press upper table return upwardly, now four caging bolts and loading and unloading material block 11 together with Cope plate die pad 4 is with excellent power rubber 3 because the downward thrust of compression resilience moves downward and makes adjusting nut 22 synchronous Move downward and be separated from the die cavity of blanking die 8 and piercing punch 10, at the same time, lower stripper 17 is with lower discharging spring 13 because the upward thrust of compression resilience and adjusting nut blank 21 move upwardly together, and then adjusting nut waste material 23 passes through Material spilling hole inside blanking and punching punch-die 18 is dropped in the ash can below lathe lower table face, followed by guide pin 12 With guide pin stage clip 14 because of the upward return of the upward thrust of compression resilience, then interior guide pin bushing 9 separates with inner guiding post 15, then Then the adjusting nut 22 fallen down from top is elapsed forwards with adjusting nut blank 21 and adjusting nut 22 is dropped Before a mold under square lathe in the product box of workbench upper surface.
5th step, as shown in Fig. 2 the adjusting nut blank 21 for having fallen one adjusting nut 22 of system is placed on into lower stripper 17 tops simultaneously cover all the blanking exocoel of blanking and punching punch-die 18, and make the inside arc surface of adjusting nut blank 21 tight Guide pin 12, left end face against front portion nestle up the guide pin 12 in left side.
Outside the adjusting nut made using the composite die of automobile drive axle adjusting nut blanking and punching of the present utility model For shape dimensionally stable in the mm of outside diameter φ 97.02, the mm of diameter of bore φ 42.20, the uniformity of monnolithic case is regular, sustainable Stable ensures that the appearance and size of adjusting nut reaches the design requirement of product drawing.Also lifted while product quality is improved Production capacity, certain two drive diesel oil major axis its blank blanking and punching of pickup truck type adjusting nut blanking and punching process and discharging process show It is sufficiently stable, and the mold repair frequency is substantially more relatively low than the same type mold repair frequency.Single products split run production capacity also by 4520 are promoted to 7100, and split run production capacity improves 57.1%.

Claims (6)

1. a kind of automobile drive axle adjusting nut Blanking Punching Compound Die, including upper mould and lower mould, upper mould include from top to bottom The cope plate backing plate being fastenedly connected successively(1), cope plate laminate(2), cope plate(5), upper padding plate(7), blanking die(8)And punching Hole punch-pin(10), lower mould includes the lower stripper that is fastenedly connected successively from top to bottom(17), lower discharging spring(13), inner guiding post (15), blanking and punching punch-die(18), lower bolster(19)And lower template(20), it is characterised in that cope plate backing plate(1)With upper mould Plate(5)Between be provided with an excellent power rubber(3)With a cope plate die pad(4), blanking die(8)And piercing punch(10)It Between be provided with a loading and unloading material block(11), loading and unloading material block(11)It is fastenedly connected with four caging bolts, excellent power rubber(3), cope plate Die pad(4), four caging bolt and loading and unloading material blocks(11)Collectively form automatic type loading and unloading material device, blanking die(8)It is interior Portion is provided with four interior guide pin bushings(9), lower stripper(17)Upper surface on the left of be provided with longitudinal direction be in straight line four guide pins (12)A guide pin is provided with front middle part(12), five guide pins(12)Lower section is all provided with a guide pin stage clip(14), Blanking die(8), piercing punch(10)With blanking and punching punch-die(18)Collectively constitute adjusting nut(22)Blanking punching pass Chamber.
2. a kind of automobile drive axle adjusting nut Blanking Punching Compound Die according to claim 1, it is characterised in that fall Expect cavity plate(8)Inside it is front and rear and symmetrical be provided with four interior guide pin bushings(9), lower bolster(19)It is internal front and rear and symmetrical set There are four inner guiding posts(15), four inner guiding posts(15)With four interior guide pin bushings(9)It is all the guide pillar guide sleeve structure that gap coordinates.
A kind of 3. automobile drive axle adjusting nut Blanking Punching Compound Die according to claim 1, it is characterised in that on Template(5), upper padding plate(7)And blanking die(8)The lower left corner of lower surface is all provided with L-type circular hole, lower stripper(17), underlay Plate(19)And lower template(20)The lower left corner of upper surface is all provided with L-type circular hole.
A kind of 4. automobile drive axle adjusting nut Blanking Punching Compound Die according to claim 1, it is characterised in that Guide pillar guide sleeve structure, template guide pin bushing are provided between upper mould and lower mould(6)Pass through interference fit and cope plate(5)Connection, template Guide pillar(16)Pass through interference fit and lower template(20)Connection.
A kind of 5. automobile drive axle adjusting nut Blanking Punching Compound Die according to claim 1, it is characterised in that on Template(5)It is fastened by bolts and is arranged on cope plate backing plate(1)Lower section, two pieces cope plate laminate(2)Symmetrically it is placed on vertically Cope plate backing plate(1)And cope plate(5)Centre, upper padding plate(7)Cope plate is arranged on by bolt and alignment pin(5)Under Side, blanking die(8)Upper padding plate is arranged on by bolt and alignment pin(7)Lower section, piercing punch(10)By bolt and determine Position pin is arranged on upper padding plate(7)Lower section and blanking die(8)The middle of blanking die cavity, excellent power rubber(3)With cope plate top Flitch(4)Cope plate is lain in a horizontal plane in successively(5)Top and cope plate backing plate(1)Lower section, loading and unloading material block(11)With four Pass through cope plate(5)And upper padding plate(7)The caging bolt of middle via is fastenedly connected installed in blanking die(8)And piercing punch (10)Between die cavity in and and blanking die(8)And piercing punch(10)It is all that gap coordinates and slides up and down connection, four Front and rear and symmetrical interior guide pin bushing(9)Blanking die is arranged on by interference fit(8)Inside and upper padding plate(7)Under Side.
6. a kind of automobile drive axle adjusting nut Blanking Punching Compound Die according to claim 5, it is characterised in that fall Expect punching punch-die(18)Lower bolster is fastened on by bolt and alignment pin(19)Top, lower bolster(19)Pass through bolt And alignment pin is fastened on lower template(20)Top, before and after four and symmetrical inner guiding post(15)Pass through interference fit Installed in lower bolster(19)Inside and lower template(20)Top, lower stripper(17)It is fastenedly connected by four caging bolts In lower bolster(19)Top, lower stripper(17)Middle via and four inner guiding posts(15)It is all gap cooperation and upper downslide Dynamic connection, lower stripper(17)Discharging slot to make way and blanking and punching punch-die(18)Coordinate for gap and slide up and down connection, Before and after six and symmetrical lower discharging spring(13)Lie in a horizontal plane in lower stripper(17)And lower template(20)Centre and Its upper end is placed on lower stripper(17)In internal blind hole and its bottom is placed on lower bolster(19)In internal through hole, Lower stripper(17)Upper surface pass on left gap coordinate be provided with longitudinal direction be in straight line four guide pins(12)In and Between front portion by gap coordinate a guide pin is installed(12), five guide pins(12)All with lower stripper(17)Internal mistake Hole slides up and down connection and below all horizontal positioned guide pin stage clip(14), guide pin stage clip(14)Upper end be enclosed on Guide pin(12)The step boss outer end and its bottom of bottom are placed on lower bolster(19)In internal blind hole.
CN201720689159.8U 2017-06-14 2017-06-14 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die Expired - Fee Related CN206838865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720689159.8U CN206838865U (en) 2017-06-14 2017-06-14 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720689159.8U CN206838865U (en) 2017-06-14 2017-06-14 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die

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CN206838865U true CN206838865U (en) 2018-01-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107030177A (en) * 2017-06-14 2017-08-11 江西江铃底盘股份有限公司 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107030177A (en) * 2017-06-14 2017-08-11 江西江铃底盘股份有限公司 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die

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Granted publication date: 20180105

Termination date: 20190614