CN103894475B - Automobile drive axle U-shaped guide rod seat side opening punching die - Google Patents

Automobile drive axle U-shaped guide rod seat side opening punching die Download PDF

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Publication number
CN103894475B
CN103894475B CN201410152252.6A CN201410152252A CN103894475B CN 103894475 B CN103894475 B CN 103894475B CN 201410152252 A CN201410152252 A CN 201410152252A CN 103894475 B CN103894475 B CN 103894475B
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die block
die
punch
stripper
bolster
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CN201410152252.6A
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CN103894475A (en
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邹函滔
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Jiangxi Jiangling Chassis Co Ltd
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Jiangxi Jiangling Chassis Co Ltd
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Abstract

The invention discloses a kind of automobile drive axle U-shaped guide rod seat side opening punching die, comprise patrix and counterdie, it is characterized in that: described patrix comprises the die shank be fastenedly connected successively from top to bottom, cope match-plate pattern, convex mould pad, punch retainer, piercing punch, side discharging rubber, intermediate discharging rubber and stripper, described counterdie comprises the punching concave die be fastenedly connected successively from top to bottom, die block, guide pin bushing in die block, die block inner guiding post, die block support spring and lower bolster, a side locating piece is respectively provided with in the middle part of the limit, the left and right sides of described die block, described die block is connected with lower bolster by die block support spring.Punch process is stablized, and does not deform, thus ensures that the concentricity of its both sides side opening is stablized.

Description

Automobile drive axle U-shaped guide rod seat side opening punching die
Technical field
The invention belongs to machining equipment field, relate to a kind of punching die of guide rod seat side opening, particularly a kind of punching die of automobile drive axle U-shaped guide rod seat side opening.
Background technology
Automobile drive axle is transmitting tractive power, brake force and the corresponding moment of reaction, needs to install guide post, and guide post is normally arranged on above the guide rod seat that is welded on vehicle driving axle housing body.The effect of guide post is led exactly, ensures that a slip object advances according to the track of specifying, thus reduces slip object at the offset deviation perpendicular to track designation direction, increases running accuracy.For ensureing the installation accuracy of guide post, just seem very to the precision controlling of the installing hole of guide rod seat and the side opening concentricity on both sides important.
The mode of production that guide rod seat is traditional is the side opening adopting CNC milling machine to process both sides after blanking operation and molding procedure.Use traditional processing technology, not only need to drop into multiple production equipment, and produce consuming time longer, production efficiency is lower.
What the present invention existed based on production technology in prior art just can optimization consider, design a kind of punching die of U-shaped part side opening, the processing of workpiece two side holes is completed in stamping procedure, the punching die producing U-shaped part side opening can be met like this by design is a kind of, improve the production efficiency of product, just seem very necessary.
Summary of the invention
The object of the invention is to the deficiency optimizing existing production technology, adapt to reality need, a kind of automobile drive axle U-shaped guide rod seat side opening punching die is provided.
In order to realize object of the present invention, the technical solution used in the present invention is:
A kind of automobile drive axle U-shaped guide rod seat side opening punching die, comprise patrix and counterdie, described patrix comprises the die shank be fastenedly connected successively from top to bottom, cope match-plate pattern, convex mould pad, punch retainer, piercing punch, side discharging rubber, intermediate discharging rubber and stripper, described counterdie comprises the punching concave die be fastenedly connected successively from top to bottom, die block, guide pin bushing in die block, die block inner guiding post, die block support spring and lower bolster, a side locating piece is respectively provided with in the middle part of the limit, the left and right sides of described die block, described die block is connected with lower bolster by die block support spring.
Between described patrix and counterdie, be provided with guide pillar guide sleeve structure, described guide pin bushing is connected with cope match-plate pattern by interference fit, and described guide pillar is connected with lower bolster by interference fit; Guide pillar guide sleeve structure is provided with between described die block and lower bolster, in described die block, guide pin bushing is connected with die block by interference fit, described die block inner guiding post is connected with lower bolster by interference fit, and in die block, guide pin bushing and die block inner guiding post are slidably connected and form guide pillar guide sleeve structure.
Die shank and cope match-plate pattern are interference fit, described convex mould pad is arranged on the below of cope match-plate pattern by bolt and alignment pin, punch retainer is fastenedly connected below convex mould pad by bolt and alignment pin, piercing punch and punch retainer are interference fit, stripper is fastenedly connected below punch retainer by stripper fastening bolt, piercing punch passes the discharging slot to make way of stripper and is slidably connected with discharging slot to make way, piercing punch is through the resigning hole of side discharging rubber, side discharging rubber is bolted connection in the middle of punch retainer and stripper, intermediate discharging rubber is bolted connection the centre in punch retainer and stripper.
Described side locating piece is bolted connection the dual-side in die block, punching concave die and die block interference fit.
Die block support spring endoporus entangles the top that die block inner guiding post is placed on lower bolster, and in the die block on die block, guide pin bushing entangles the top that die block inner guiding post is placed on die block support spring.
Beneficial effect of the present invention is:
1. side opening punching die of the present invention is when punching, piercing punch can be uninstalled by support spring buffering the impulse force that blank applies downwards, blank punch process is stablized, ensures that the face shaping of U-shaped guide rod seat is regular and do not deform, thus ensure that the concentricity of its both sides side opening is stablized;
2. can promote productive temp, strengthen production capacity, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of side opening punching die of the present invention;
Fig. 2 is the plan structure schematic diagram of the embodiment of the present invention 1 part of the lower die;
Fig. 3 is the structural representation after the punching of workpiece side opening.
Fig. 4 is the side-looking structural representation after the punching of workpiece side opening.
In figure, 1 is die shank, and 2 is cope match-plate pattern, and 3 is guide pin bushing, 4 is piercing punch, and 5 is side discharging rubber, and 6 is intermediate discharging rubber, and 7 is stripper, 8 is punching concave die, and 9 is side locating piece, and 10 is guide pin bushing in die block, 11 is die block inner guiding post, and 12 is die block support spring, and 13 is stripper fastening bolt, 14 is convex mould pad, and 15 is punch retainer, and 16 is guide rod seat, 17 is die block, and 18 is guide pillar, and 19 is lower bolster.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment: see Fig. 1---Fig. 4.
The invention discloses a kind of automobile drive axle U-shaped guide rod seat side opening punching die, comprise patrix and counterdie, described patrix comprises the die shank 1 be fastenedly connected successively from top to bottom, cope match-plate pattern 2, convex mould pad 14, punch retainer 15, piercing punch 4, side discharging rubber 5, intermediate discharging rubber 6, stripper 7, described counterdie comprises the punching concave die 8 be fastenedly connected successively from top to bottom, die block 17, guide pin bushing 10 in die block, die block inner guiding post 11, die block support spring 12, lower bolster 19, a side locating piece 9 is respectively provided with in the middle part of the limit, the left and right sides of described die block 17, described die block 17 overall weight is all carried on above die block support spring 12.
Between described patrix and counterdie, be provided with guide pillar guide sleeve structure, described guide pin bushing 3 is connected with cope match-plate pattern 2 by interference fit, and described guide pillar 18 is connected with lower bolster 19 by interference fit; Between described die block 17 and lower bolster 19, be provided with guide pillar guide sleeve structure, in described die block, guide pin bushing 10 is connected with die block 17 by interference fit, and described die block inner guiding post 11 is connected with lower bolster 19 by interference fit.
Die shank 1 and cope match-plate pattern 2 are interference fit, convex mould pad 14 is arranged on the below of cope match-plate pattern 2 by bolt and alignment pin, punch retainer 15 is fastenedly connected below convex mould pad 14 by bolt and alignment pin, piercing punch 4 and punch retainer 15 are interference fit, stripper 7 by piercing punch 4 by being fastenedly connected below punch retainer 15 by stripper fastening bolt 13 in its discharging slot to make way, side discharging rubber 5 by piercing punch 4 by being bolted connection in its resigning hole in the middle of punch retainer 15 and stripper 7, intermediate discharging rubber 6 is bolted connection in the middle of punch retainer 15 and stripper 7, side locating piece 9 is bolted connection the dual-side in die block 17, punching concave die 8 and die block 17 interference fit, guide pin bushing 10 and die block 17 interference fit in die block, die block inner guiding post 11 and lower bolster 19 are interference fit, die block support spring 12 endoporus entangles the top that die block inner guiding post 11 is placed on lower bolster 19, and in the die block on die block 17, guide pin bushing 10 entangles the top that die block inner guiding post 11 is placed on die block support spring 12.
Operation principle of the present invention is summarized as follows:
Such Jiangling land wind 4-wheel driven car series guide rod seat is made up through punch process of the steel plate for automobile frame that 6mm is thick, and after completing first blanking procedure, second blanking operation, the 3rd road molding procedure, side opening side opening punching die in both sides is processed:
The first step, by automobile drive axle U-shaped guide rod seat side opening punching die of the present invention, is arranged on steam-operating 160T open type press with fixed bench.
Second step, as shown in Figure 2, guide rod seat 16 after molding procedure is placed in the location type groove between the side locating piece 9 of the left and right sides and die block 17 respectively, and the U-shaped bottom surface straight flange of guide rod seat 16 is nestled up the stepped ramp type positioning spigot of die block 17.
3rd step, start forcing press and carry out punch process to guide rod seat 16, piercing punch 4 moves downward, and makes guide rod seat 16 above punching concave die 8, complete the punching of side opening.
4th step, forcing press upper table face, piercing punch 4 and stripper 7 return, as shown in Figure 2, by the right and left punching well on one side the guide rod seat 16 of side opening change in the location type groove exchanging and be respectively put into again between side locating piece 9 and die block 17, the one side making guide rod seat 16 not rush side opening is placed upward, and the U-shaped bottom surface straight flange of guide rod seat 16 is nestled up the stepped ramp type positioning spigot of die block 17.
5th step, start forcing press and carry out punch process to guide rod seat 16, piercing punch 4 moves downward, and makes guide rod seat 16 above punching concave die 8, complete once the punching of non-punching side opening.The size reaching both sides side opening is 15.20mm, concentricity is 0.20---0.25mm and make the A/F of U-shaped remain on 71.90---, and between 72.10, after side opening punching, the structure of guide rod seat 16 as shown in Figure 3.
The guide rod seat punch process adopting automobile drive axle U-shaped guide rod seat side opening punching die of the present invention to make is stablized, the A/F of U-shaped straight flange is 72 ± 0.1, the concentricity of two side holes is 0.22mm ± 0.03mm, the uniformity of monnolithic case is regular, sustainablely stable guarantees that two side opening concentricitys of guide rod seat reach the designing requirement of product drawing.While improving the quality of products, also improve production capacity, the production technology of Jiangling land wind 4-wheel driven car series guide rod seat side opening is processed by original CNC milling machine and is optimized for present open type press with fixed bench processing.Single products split run production capacity is promoted to 1330 by 320, and split run production capacity improves 316%.

Claims (3)

1. an automobile drive axle U-shaped guide rod seat side opening punching die, comprise patrix and counterdie, it is characterized in that: described patrix comprises the die shank (1) be fastenedly connected successively from top to bottom, cope match-plate pattern (2), convex mould pad (14), punch retainer (15), piercing punch (4), side discharging rubber (5), intermediate discharging rubber (6) and stripper (7), described counterdie comprises the punching concave die (8) be fastenedly connected successively from top to bottom, die block (17), guide pin bushing (10) in die block, die block inner guiding post (11), die block support spring (12) and lower bolster (19), a side locating piece (9) is respectively provided with in the middle part of the limit, the left and right sides of described die block (17), described die block (17) is connected with lower bolster (19) by die block support spring (12),
Described convex mould pad (14) is arranged on the below of cope match-plate pattern (2) by bolt and alignment pin, punch retainer (15) is fastenedly connected in convex mould pad (14) below by bolt and alignment pin, piercing punch (4) and punch retainer (15) are interference fit, stripper (7) is fastenedly connected in punch retainer (15) below by stripper fastening bolt (13), piercing punch (4) through stripper (7) discharging slot to make way and be slidably connected with discharging slot to make way, piercing punch (4) is through the resigning hole of side discharging rubber (5), side discharging rubber (5) is bolted connection in the middle of punch retainer (15) and stripper (7), intermediate discharging rubber (6) is bolted connection the centre in punch retainer (15) and stripper (7),
Described side locating piece (9) is bolted connection the dual-side in die block (17), punching concave die (8) and die block (17) interference fit.
2. mould according to claim 1, it is characterized in that: between described die block (17) and lower bolster (19), be provided with guide pillar guide sleeve structure, in described die block, guide pin bushing (10) is connected with die block (17) by interference fit, described die block inner guiding post (11) is connected with lower bolster (19) by interference fit, and in die block, guide pin bushing (10) and die block inner guiding post (11) connect to form guide pillar guide sleeve structure.
3. mould according to claim 2, it is characterized in that: die block support spring (12) endoporus entangles the top that die block inner guiding post (11) is placed on lower bolster (19), in the die block on die block (17), guide pin bushing (10) entangles the top that die block inner guiding post (11) is placed on die block support spring (12).
CN201410152252.6A 2014-04-16 2014-04-16 Automobile drive axle U-shaped guide rod seat side opening punching die Active CN103894475B (en)

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Application Number Priority Date Filing Date Title
CN201410152252.6A CN103894475B (en) 2014-04-16 2014-04-16 Automobile drive axle U-shaped guide rod seat side opening punching die

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CN103894475B true CN103894475B (en) 2016-02-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959458A (en) * 2015-06-29 2015-10-07 柳州市旭臻机械制造有限公司 Device for punching left instrument panel middle beam support
CN106334766B (en) * 2016-11-04 2018-02-16 宁波市振兴锁业有限公司 Lockhole pressing equipment and process for stamping on jam plate

Citations (6)

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Publication number Priority date Publication date Assignee Title
US6347900B1 (en) * 1997-02-10 2002-02-19 Nsk Ltd. Yoke for universal joint, and production process for the same
CN201960043U (en) * 2011-01-26 2011-09-07 成都万荣科技有限责任公司 Novel cantilever type bidirectional punching die
CN102179441A (en) * 2011-04-07 2011-09-14 江西江铃底盘股份有限公司 Trimming module and process for automobile plate spring support
CN202070665U (en) * 2011-03-25 2011-12-14 山东潍坊福田模具有限责任公司 Floating female die
CN202427802U (en) * 2011-12-23 2012-09-12 凯盛重工有限公司 Die for machining left and right symmetric holes of U-shaped part
CN203887014U (en) * 2014-04-16 2014-10-22 江西江铃底盘股份有限公司 Punching die of side hole of U-shaped guide bar seat of automobile drive axle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10296350A (en) * 1997-04-22 1998-11-10 Toshiba Corp Semi conductor lead frame punching die

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347900B1 (en) * 1997-02-10 2002-02-19 Nsk Ltd. Yoke for universal joint, and production process for the same
CN201960043U (en) * 2011-01-26 2011-09-07 成都万荣科技有限责任公司 Novel cantilever type bidirectional punching die
CN202070665U (en) * 2011-03-25 2011-12-14 山东潍坊福田模具有限责任公司 Floating female die
CN102179441A (en) * 2011-04-07 2011-09-14 江西江铃底盘股份有限公司 Trimming module and process for automobile plate spring support
CN202427802U (en) * 2011-12-23 2012-09-12 凯盛重工有限公司 Die for machining left and right symmetric holes of U-shaped part
CN203887014U (en) * 2014-04-16 2014-10-22 江西江铃底盘股份有限公司 Punching die of side hole of U-shaped guide bar seat of automobile drive axle

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