CN107377760B - Continuous stamping die for automobile door rear support and stamping method thereof - Google Patents
Continuous stamping die for automobile door rear support and stamping method thereof Download PDFInfo
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- CN107377760B CN107377760B CN201710758565.XA CN201710758565A CN107377760B CN 107377760 B CN107377760 B CN 107377760B CN 201710758565 A CN201710758565 A CN 201710758565A CN 107377760 B CN107377760 B CN 107377760B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Abstract
The invention relates to the technical field of automobile parts and automobile part processing and forming, in particular to an automobile door rear bracket stamping die and a stamping method thereof, wherein the continuous stamping die comprises an upper positioning plate, an upper pad foot, an upper template, a lower pad foot and a lower positioning plate which are arranged from top to bottom, and a feeding plate, a trimming process stamping die, a chamfering process stamping die, a forming process stamping die, a drawing Kong Gongxu stamping die and a trimming stripping process stamping die are arranged between the upper template and the lower template in sequence from left to right; the material belt is sequentially punched through the trimming process stamping die, the chamfering process stamping die, the forming process stamping die, the extracting Kong Gongxu stamping die and the trimming stripping process stamping die, the formed automobile door rear support material sheet is obtained, the extracting hole of the formed automobile door rear support material sheet is not easy to crack, and the size precision is high, so that the requirement of a customer size standard is met.
Description
Technical Field
The invention relates to the technical field of automobile parts and automobile part processing and forming, in particular to a stamping die and a stamping method for an automobile door rear bracket.
Background
The prior automobile door rear bracket material sheet is shown in fig. 1, the center hole is a hole with a flanging, the flanging height is larger than the radius of the hole, the original hole drawing process is to punch the pre-hole first and then to draw the hole, the hole drawing process is easy to crack, the size cannot be ensured, and the customer requirements cannot be met, so that the original processing die and the original processing process are required to be improved.
Disclosure of Invention
The invention provides a novel continuous stamping method for an automobile door rear bracket and a continuous stamping die required by the method.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
the continuous stamping die comprises an upper positioning plate, an upper pad foot, an upper die plate, a lower pad foot and a lower positioning plate which are arranged from top to bottom, wherein a feeding plate, a trimming process stamping die, a chamfering process stamping die, a forming process stamping die, a drawing Kong Gongxu stamping die and a trimming stripping process stamping die are sequentially arranged between the upper die plate and the lower die plate from left to right;
the trimming procedure stamping die comprises a first upper base plate, a second upper base plate, an upper fixing plate, an upper discharging plate, a lower die and a lower base plate which are arranged from top to bottom, wherein the bottom surface of the second upper base plate is sequentially provided with a punch, a first upper abnormal-shape punch, a second upper abnormal-shape punch, a third upper abnormal-shape punch and a fourth upper abnormal-shape punch from left to right, the punch, the first upper abnormal-shape punch, the second upper abnormal-shape punch, the third upper abnormal-shape punch and the fourth upper abnormal-shape punch sequentially pass through the upper fixing plate and the upper discharging plate from top to bottom, the bottom surface of the upper discharging plate is fixedly provided with an upper guide punch and is positioned on the right side of the fourth upper abnormal-shape punch, a first upper ejection mechanism is arranged between the second upper abnormal-shape punch and the third upper abnormal-shape punch, the first upper ejection mechanism comprises a spring and an upper ejector rod which are arranged from top to bottom, the top of the spring is fixed on the upper positioning plate, the bottom is abutted to the top of the upper ejector rod, the bottom of the upper ejector rod is propped against the top surface of the upper stripper plate after penetrating through the upper base plate and the upper fixing plate from top to bottom, a second upper ejection mechanism is arranged between the fourth upper special-shaped punch and the upper guide punch, the second upper ejection mechanism comprises a screw plug, a spring and an upper ejector pin which are arranged from top to bottom, the top of the screw plug is fixed on the upper fixing plate, the bottom of the screw plug is propped against the top of the spring, the bottom of the spring is propped against the top of the upper ejector pin, the bottom of the upper ejector pin is propped against the lower die after penetrating through the upper stripper plate, a pressing plate, a concave sleeve, a first lower die insert, a second lower die insert, a third lower die insert and a fourth lower die insert are sequentially arranged in the lower die from left to right, the concave sleeve is positioned below the punch, the first lower die insert is positioned below the first upper special-shaped punch, the second lower die insert is positioned below the second upper special-shaped punch, the third lower die insert is positioned below the third upper special-shaped punch, the fourth lower die insert is positioned below the fourth upper special-shaped punch, the lower guide jacking block, the spring and the screw plug are sequentially arranged below the pressing plate from top to bottom, the bottom of the spring is fixed in the lower template through the screw plug, the top of the lower guide jacking block is propped against the bottom surface of the pressing plate, the bottom of the lower guide jacking block is propped against the top of the spring, a first lower jacking pin is arranged between the concave sleeve and the first lower die insert, the bottom of the first lower jacking pin is fixed on the lower template through the spring, the top of the first lower jacking pin is flush with the top surface of the lower die after penetrating through the lower base plate, a second lower jacking pin is arranged right below the upper guide punch, the bottom of the second lower jacking pin is fixed on the lower template through the spring, and the top of the second lower jacking pin is flush with the top surface of the lower die after penetrating through the lower base plate;
the chamfering process stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate back plate, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein a character die and an upper guide punch are sequentially arranged on the bottom surface of the upper stripper plate back plate from left to right, a spring and an upper ejector rod are arranged above the upper stripper plate back plate above the character die from top to bottom, the top of the spring is fixed on the upper locating plate, the bottom of the spring is abutted to the top of the upper ejector rod, the upper ejector rod penetrates through the upper base plate from top to bottom, the bottom of the upper fixing plate is abutted to the top surface of the upper stripper plate back plate, a lower ejector pin is arranged on the right side of the upper guide punch, the bottom of the lower ejector pin is fixed on the lower die plate through the spring, and the top of the upper ejector pin is flush with the top surface of the lower die after penetrating through the lower base plate;
the stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate back plate, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein a first upper forming punch and a second upper forming punch are sequentially arranged on the bottom surface of the upper base plate from left to right;
the punching die comprises an upper backing plate, an upper fixing plate, an upper stripper plate, a lower die and a lower backing plate which are arranged from top to bottom, wherein a first upper stripper plate insert and a second upper stripper plate insert are sequentially arranged at the bottom of the upper stripper plate from left to right, an upper stretching punch, an upper punching convex punch, a punch and an upper punching punch are sequentially arranged at the bottom of the upper backing plate from left to right, the upper stretching punch, the upper punching convex punch, the punch and the upper punching punch all penetrate through the upper fixing plate, the upper stripper plate and the upper stripper plate insert from top to bottom, an upper guide punch is arranged between the upper stretching punch and the upper punching convex punch, the top of the upper guide punch is fixed at the bottom of the upper stripper plate, an upper ejection mechanism is arranged at the right side of the upper punching punch and comprises a first nitrogen spring and an upper ejector rod which are arranged from top to bottom, the top of the first nitrogen spring is fixed on the upper locating plate, the bottom of the first nitrogen spring is abutted against the top of the upper ejector rod, the upper ejector rod passes through the upper backing plate from top to bottom, the rear bottom of the upper fixing plate is abutted against the top surface of the upper stripper plate, a stretching concave sleeve, a punching concave die, a hole-punching concave die and a lower die insert are sequentially arranged in the lower die from left to right, the stretching concave sleeve is arranged below the upper stretching punch, the hole-punching concave die is arranged below the upper punching convex punch, the hole-punching concave die is arranged below the punch, the lower die insert is arranged below the upper ejector rod and is positioned below the second upper stripper plate insert, a first lower ejection mechanism is arranged below the hole-punching concave die, the first lower ejection mechanism comprises an indirect top plate, a first lower ejector rod, a lower cushion block and a second lower ejector rod which are sequentially arranged from bottom to top, the bottom of the indirect top plate is fixed on the lower locating plate, the bottom of the first lower ejector rod is abutted against the top of the indirect top plate, the top of the lower cushion block is abutted against the bottom of the lower cushion block, the top of the second lower ejector rod is abutted against the bottom of the punching convex concave die after penetrating through the lower base plate, a second lower ejection mechanism is arranged below the punching concave die, the second lower ejection mechanism comprises a second nitrogen spring and a third lower ejector rod which are sequentially arranged from bottom to top, the bottom of the second nitrogen spring is fixed on the lower positioning plate, the top of the second nitrogen spring is abutted against the bottom of the third lower ejector rod, and the top of the third lower ejector rod is abutted against the bottom of the punching concave die after penetrating through the lower base plate;
the trimming and stripping process stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate backboard, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein the lower die comprises a first lower die and a second lower die which are sequentially arranged from left to right, the lower base plate comprises a first lower base plate arranged below the first lower die and a second lower base plate arranged below the second lower die, a first upper abnormal-shape punch, a second upper abnormal-shape punch, a third upper abnormal-shape punch and an upper cutting punch are sequentially arranged at the bottom of the upper base plate from left to right, the first upper abnormal-shape punch, the second upper abnormal-shape punch, the third upper abnormal-shape punch and the upper cutting punch sequentially penetrate through the upper fixing plate, the upper stripper plate backboard and the upper stripper plate from top to bottom, a first upper cutting edge and a second upper cutting edge are arranged below the second upper abnormal-shape punch and the third upper abnormal-shape punch, an upper guide punch is arranged on the right side of the second upper cutting edge, the top of the upper guide punch is fixed at the bottom of the upper stripper plate, a first upper stripper plate insert, a second upper stripper plate insert and a third upper stripper plate insert are sequentially arranged in the upper stripper plate from left to right, the first upper stripper plate insert is arranged below the first upper abnormal punch, the second upper stripper plate insert and the third upper stripper plate insert are both positioned between the upper guide punch and the upper cutting punch, the second lower die is positioned below the upper cutting punch, a first upper ejection mechanism is arranged between the third upper stripper plate insert and the upper cutting punch and comprises a nitrogen spring and an upper ejector rod which are sequentially arranged from top to bottom, the top of the nitrogen spring is fixed on the upper positioning plate, the bottom of the nitrogen spring is abutted to the top of the upper ejector rod, the bottom of the upper ejector rod is abutted to the top surface of the upper stripper plate backboard, the right side of the upper cutting punch is provided with a second upper ejection mechanism which comprises a spring and an upper ejector pin which are arranged from top to bottom, the spring top is fixed in upper backing plate bottom, bottom butt in last knock-out pin top, go up knock-out pin bottom butt on the second lower mould, be equipped with first lower mould insert from left to right in the first lower mould in proper order, the second lower mould insert, the third lower mould insert, first lower blade, the second lower blade, the fourth lower mould insert, first upper abnormal shape drift below is located to first lower mould insert, second upper abnormal shape drift below is located to the second lower mould insert, third lower mould insert is located third upper abnormal shape drift below, first lower blade and second lower blade are located and are guided the drift below, the fourth lower mould insert is located third upper stripper insert below, fourth lower mould insert right side is equipped with ejection mechanism down, ejection mechanism down includes spring and lower knock-out pin that sets gradually from bottom to top, the bottom of spring is fixed in the lower bolster, the top butt is in lower knock-out pin bottom, the knock-out pin passes second lower backing plate back top and flushes with second lower mould top from bottom to top.
As an improvement, the upper surface of the rightmost end of the lower template is provided with an inductor fixing block for installing an inductor, and the inductor is used for detecting the feeding position of the material belt.
The stamping method based on the continuous stamping die comprises the following steps:
A. feeding the material belt into a die through a feeding plate;
B. the trimming process stamping die performs the following operations on the material belt:
B1. the punching is completed by matching the punch with the concave sleeve,
B2. trimming, namely finishing the matching of the first upper abnormal punch and the first lower die insert;
B3. trimming, namely finishing the matching of the second upper abnormal punch and the second lower die insert;
B4. trimming, namely finishing the matching of the third upper abnormal punch and the third lower die insert;
B5. trimming, namely finishing the matching of the fourth upper abnormal punch and the fourth lower die insert;
B6. performing a blank step;
C. and C, carrying out the following operations on the material belt processed in the step B by a chamfering procedure stamping die:
C1. chamfering, namely finishing the matching of the upper discharging plate and the lower die;
C2. performing a blank step;
D. the stamping die of the forming procedure carries out the following operations on the material belt processed in the step C:
D1. forming, namely finishing the matching of the first upper forming punch and the first lower die insert;
D2. performing a blank step;
D3. forming, namely finishing the matching of the second upper forming punch and the second lower die insert;
D4. shaping, namely finishing the matching of the second upper stripper plate insert and the third lower die insert;
D5. performing a blank step;
E. the stamping die in the evacuation procedure carries out the following operations on the material belt processed in the step D:
E1. stretching, wherein the upper stretching punch and the stretching concave sleeve are matched;
E2. embossing and engraving, wherein the embossing punch is matched with the embossing die;
E3. punching, wherein the punch and the punching female die are matched;
E4. the hole drawing is completed by matching an upper hole drawing punch with a hole drawing female die;
E5. shaping, namely finishing the matching of the second upper stripper plate insert and the lower die insert;
E6. performing a blank step;
F. and E, trimming and stripping the stamping die, and carrying out the following operations on the material belt processed in the step E:
F1. performing a blank step;
F2. trimming and pre-punching, wherein the first upper abnormal punch and the first lower die insert are matched;
F3. fine blanking, wherein the second upper abnormal punch and the second lower die insert are matched;
F4. shaping, namely finishing the matching of the third upper stripper plate insert and the fourth lower die insert;
F5. performing a blank step;
F6. cutting, and matching the upper cutting punch with the second lower die.
From the above description, it can be seen that the present invention has the following advantages: the material belt is sequentially punched through the trimming process stamping die, the chamfering process stamping die, the forming process stamping die, the extracting Kong Gongxu stamping die and the trimming stripping process stamping die, the formed automobile door rear support material sheet is obtained, the extracting hole of the formed automobile door rear support material sheet is not easy to crack, and the size precision is high, so that the requirement of a customer size standard is met.
Drawings
FIG. 1 is a schematic view of a rear door carrier;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the stamping die for the trimming process of the present invention;
FIG. 4 is a schematic diagram of the structure of a chamfering process stamping die according to the present invention;
FIG. 5 is a schematic view of a stamping die structure in the forming process of the present invention;
FIG. 6 is a schematic diagram of a stamping die structure in the hole drawing process of the invention;
FIG. 7 is a schematic diagram of a stamping die structure in the trimming and stripping process of the invention;
fig. 8 is a flowchart of a press process according to the press method of the present invention.
Detailed Description
One embodiment of the present invention will be described in detail with reference to fig. 2 to 8, but does not limit the claims of the present invention in any way.
As shown in fig. 2, the continuous stamping die for the rear bracket of the automobile door comprises an upper positioning plate 4, an upper pad foot 5, an upper template 6, a lower template 3, a lower pad foot 2 and a lower positioning plate 1 which are arranged from top to bottom, wherein a feeding plate 8, a trimming procedure stamping die, a chamfering procedure stamping die, a forming procedure stamping die, a drawing Kong Gongxu stamping die and a trimming stripping procedure stamping die are sequentially arranged between the upper template 6 and the lower template 3 from left to right;
wherein:
(1) As shown in fig. 3, the trimming process stamping die comprises a first upper base plate 103, a second upper base plate 104, an upper fixing plate 105, an upper stripper plate 106, a lower die 102 and a lower base plate 101 which are arranged from top to bottom, wherein a punch 107, a first upper special-shaped punch 108, a second upper special-shaped punch 109 (the first upper special-shaped punch 108 and the second upper special-shaped punch 109 are commonly used), a third upper special-shaped punch 113 and a fourth upper special-shaped punch 114 (the third upper special-shaped punch 113 and the fourth upper special-shaped punch 114 are commonly used), the punch 107, the first upper special-shaped punch 108, the second upper special-shaped punch 109, the third upper special-shaped punch 113 and the fourth upper special-shaped punch 114 sequentially penetrate through the upper fixing plate 105 and the upper stripper plate 106 from left to right, and an upper guide punch 119 is fixed on the bottom of the upper stripper plate 106 and is positioned on the right side of the fourth upper special-shaped punch 114;
a first upper ejection mechanism is arranged between the second upper special-shaped punch 109 and the third upper special-shaped punch 113, the first upper ejection mechanism comprises a spring 111 and an upper ejector rod 112 which are arranged from top to bottom, the top of the spring 111 is fixed on the upper positioning plate 4, the bottom of the spring is abutted against the top of the upper ejector rod 112, and the bottom of the upper ejector rod 112 is abutted against the top surface of the upper stripper plate 106 after passing through the upper base plate 104 and the upper fixed plate 105 from top to bottom;
a second upper ejection mechanism is arranged between the fourth upper special-shaped punch 114 and the upper guide punch 119, and comprises a screw plug 115, a spring 116 and an upper ejection pin 117 which are arranged from top to bottom, wherein the top of the screw plug 115 is fixed on an upper fixing plate, the bottom of the screw plug is abutted against the top of the spring 116, the bottom of the spring 116 is abutted against the top of the upper ejection pin 117, and the bottom of the upper ejection pin 117 is abutted against the lower die 102 after passing through the upper stripper plate 106;
a pressing plate 125, a concave sleeve 126, a first lower die insert 128, a second lower die insert 129, a third lower die insert 130 and a fourth lower die insert 131 are sequentially arranged in the lower die 102 from left to right, the concave sleeve 126 is positioned below the punch 107, the first lower die insert 128 is positioned below the first upper abnormal-shaped punch 108, the second lower die insert is positioned below the second upper abnormal-shaped punch 109, the third lower die insert 130 is positioned below the third upper abnormal-shaped punch 113, and the fourth lower die insert 131 is positioned below the fourth upper abnormal-shaped punch 114;
a lower guide jacking block 124, a spring 122 and a screw plug 121 are sequentially arranged below the pressing plate 125 from top to bottom, the bottom of the spring 122 is fixed in the lower die plate 6 through the screw plug 121, the top of the lower guide jacking block 124 is propped against the bottom surface of the pressing plate 125, the bottom is propped against the top of the spring 122, a first lower jacking pin 127 is arranged between the concave sleeve 126 and the first lower die insert 128, the bottom of the first lower jacking pin 127 is fixed on the lower die plate 6 through the spring, the top is flush with the top surface of the lower die 102 after passing through the lower base plate 101, a second lower jacking pin 133 is arranged right below the upper guide punch 119, the bottom of the second lower jacking pin 133 is fixed on the lower die plate 6 through the spring, and the top is flush with the top surface of the lower die 102 after passing through the lower base plate 101;
(2) As shown in fig. 4, the chamfering process stamping die comprises an upper base plate 203, an upper fixing plate 204, an upper stripper plate backboard 205, an upper stripper plate 206, a lower die 202 and a lower base plate 201 which are arranged from top to bottom, wherein a character die 212 and an upper guide punch 213 are sequentially arranged on the bottom surface of the upper stripper plate backboard 205 from left to right, a spring and an upper ejector rod 207 are arranged above the upper stripper plate backboard 205 above the character die 212 from top to bottom, the top of the spring is fixed on an upper positioning plate 4, the bottom is abutted against the top of the upper ejector rod 207, the upper ejector rod 207 passes through the upper base plate 203 and the upper fixing plate 204 from top to bottom, the bottom is abutted against the top surface of the upper stripper plate backboard 205, a lower ejector pin 215 is arranged on the right side of the upper guide punch 213, the bottom of the lower ejector pin 215 is fixed on the lower die 3 through the spring 214, and the top is flush with the top surface of the lower die 202 after passing through the lower base plate 201;
(3) As shown in fig. 5, the forming process stamping die comprises an upper backing plate 303, an upper fixing plate 304, an upper stripper plate back plate 305, an upper stripper plate 306, a lower die 302 and a lower backing plate 301 which are arranged from top to bottom;
the bottom surface of the upper backing plate is provided with a first upper forming punch 307 and a second upper forming punch 308 in sequence from left to right; the first upper forming punch 307 and the second upper forming punch 308 sequentially pass through the upper fixed plate 304, the upper stripper plate back plate 305 and the upper stripper plate 306 from top to bottom, and a first upper stripper plate insert 309 and a second upper stripper plate insert 312 are sequentially arranged in the upper stripper plate 306 from left to right;
a first lower die insert 313, a second lower die insert 314 and a third lower die insert 315 are arranged in the lower die 302 in sequence from left to right, the first lower die insert 313 is positioned below the first upper forming punch 307, and the second lower die insert 314 is positioned below the second upper forming punch 308;
an upper ejection mechanism is arranged above the upper stripper plate back plate 305 between the second lower die insert 314 and the third lower die insert 315, the upper ejection mechanism comprises a nitrogen spring 310 and an upper ejector rod 311 which are arranged from top to bottom, the top of the nitrogen spring 310 is fixed on the upper positioning plate 4, the bottom of the nitrogen spring is abutted against the top of the upper ejector rod 311, and the bottom of the upper ejector rod 311 is abutted against the top surface of the upper stripper plate 305 after penetrating through the upper base plate 303 and the upper fixing plate 304 from top to bottom;
the first upper stripper plate insert 309 is located between the second upper forming punch 308 and the upper ram 311, and the second upper stripper plate insert 312 is located on the right side of the upper ram 311 and above the third lower die insert 315;
(4) As shown in fig. 6, the punching die for the hole drawing process includes an upper backing plate 403, an upper fixing plate 404, an upper stripper plate 405, a lower die 402 and a lower backing plate 401 which are disposed from top to bottom;
the bottom of the upper stripper plate 405 is provided with a first upper stripper plate insert 406 and a second upper stripper plate insert 417 in sequence from left to right;
the bottom of the upper backing plate 403 is provided with an upper stretching punch 408, an upper punching punch 411, a punch 414 and an upper drawing punch 416 in sequence from left to right, and the upper stretching punch 408, the upper punching punch 411, the punch 414 and the upper drawing punch 416 all penetrate through the upper fixing plate 404, the upper stripper plate 405 and the upper stripper plate insert from top to bottom;
an upper guide punch 409 is arranged between the upper stretching punch 408 and the upper punching punch 411, and the top of the upper guide punch 409 is fixed at the bottom of the upper stripper plate 405;
the right side of the upper hole-drawing punch 416 is provided with an upper ejection mechanism, the upper ejection mechanism comprises a first nitrogen spring 418 and an upper ejector rod 419 which are arranged from top to bottom, the top of the first nitrogen spring 418 is fixed on the upper positioning plate 4, the bottom of the first nitrogen spring 418 is abutted against the top of the upper ejector rod 419, and the bottom of the upper ejector rod 419 is abutted against the top surface of the upper unloading plate 405 after penetrating through the upper backing plate 403 and the upper fixing plate 404 from top to bottom;
a stretching concave sleeve 420, a punching concave die 425, a punching concave die 426, a hole-drawing concave die 429 and a lower die insert 430 are sequentially arranged in the lower die 402 from left to right, the stretching concave sleeve 420 is arranged below the upper stretching punch 408, the punching concave die 425 is arranged below the upper punching punch 411, the punching concave die 426 is arranged below the punch 414, the hole-drawing concave die 429 is arranged below the upper hole-drawing punch 416, and the lower die insert 430 is arranged below the upper ejector rod 419 and is positioned below the second upper stripper plate insert 417;
a first lower ejection mechanism is arranged below the punch convex die 425 and comprises an indirect top plate 421, a first lower top rod 422, a lower cushion block 423 and a second lower top rod 424 which are sequentially arranged from bottom to top, the bottom of the indirect top plate 421 is fixed on the lower positioning plate 1, the bottom of the first lower top rod 422 is abutted to the top of the indirect top plate 421, the top of the first lower top rod 422 is abutted to the bottom of the lower cushion block 423, the top of the lower cushion block 423 is abutted to the bottom of the second lower top rod 424, and the top of the second lower top rod 424 is abutted to the bottom of the punch convex die 425 after passing through the lower cushion plate 401;
a second lower ejection mechanism is arranged below the hole-drawing die 429 and comprises a second nitrogen spring 427 and a third lower ejector rod 428 which are sequentially arranged from bottom to top, the bottom of the second nitrogen spring 427 is fixed on the lower positioning plate 1, the top of the second nitrogen spring is abutted against the bottom of the third lower ejector rod 428, and the top of the third lower ejector rod 428 is abutted against the bottom of the hole-drawing die 429 after passing through the lower base plate 401;
(5) As shown in fig. 7, the trimming and stripping process stamping die comprises an upper base plate 503, an upper fixing plate 504, an upper stripper plate back plate 505, an upper stripper plate 506, a lower die and a lower base plate which are arranged from top to bottom, wherein the lower die comprises a first lower die 502 and a second lower die 530 which are arranged from left to right in sequence, and the lower base plate comprises a first lower base plate 501 arranged below the first lower die 502 and a second lower base plate 529 arranged below the second lower die 530;
the bottom of the upper base plate 503 is provided with a first upper special-shaped punch 507, a punch 510, a second upper special-shaped punch 511, a third upper special-shaped punch 512 and an upper cutting punch 518 in sequence from left to right; the first upper special-shaped punch 507, the punch 510, the second upper special-shaped punch 511, the third upper special-shaped punch 512 and the upper cutting punch 518 sequentially pass through the upper fixing plate 504, the upper stripper plate back plate 505 and the upper stripper plate 506 from top to bottom;
a first upper cutting edge 513 and a second upper cutting edge 514 are arranged below the second upper special-shaped punch 511 and the third upper special-shaped punch 512;
an upper guide punch 515 is arranged on the right side of the second upper cutting edge 514, and the top of the upper guide punch 515 is fixed at the bottom of the upper stripper plate 506;
a first upper stripper plate insert 508, a second upper stripper plate insert 516 and a third upper stripper plate insert 517 are sequentially arranged in the upper stripper plate 506 from left to right, the first upper stripper plate insert 508 is arranged below the first upper abnormal punch 507, the second upper stripper plate insert 516 and the third upper stripper plate insert 517 are both positioned between the upper guide punch 515 and the upper cutting punch 518, and the second lower die 530 is arranged below the upper cutting punch 518;
a first upper ejection mechanism is arranged between the third upper stripper plate insert 517 and the upper cutting punch 518, and comprises a nitrogen spring 533 and an upper ejector rod 534 which are sequentially arranged from top to bottom, wherein the top of the nitrogen spring 533 is fixed on the upper positioning plate 4, the bottom of the nitrogen spring 533 is abutted against the top of the upper ejector rod 534, and the bottom of the upper ejector rod is abutted against the top surface of the upper stripper plate back plate 505;
the right side of the upper cutting punch 518 is provided with a second upper ejection mechanism, the second upper ejection mechanism comprises a spring 519 and an upper ejection pin 520 which are arranged from top to bottom, the top of the spring 519 is fixed at the bottom of the upper base plate, the bottom of the spring is abutted to the top of the upper ejection pin, and the bottom of the upper ejection pin 520 is abutted to the second lower die 530;
a first lower die insert 521, a second lower die insert 522, a third lower die insert 523, a first lower cutting edge 524, a second lower cutting edge 525 and a fourth lower die insert 526 are sequentially arranged in the first lower die 502 from left to right, the first lower die insert is arranged below the first upper abnormal-shape punch 507, the second lower die insert 522 is arranged below the second upper abnormal-shape punch 511, the third lower die insert 523 is arranged below the third upper abnormal-shape punch 512, the first lower cutting edge 524 and the second lower cutting edge 525 are arranged below the upper guide punch, and the fourth lower die insert 526 is arranged below the third upper stripper plate insert 517;
the right side of the fourth lower die insert 526 is provided with a lower ejection mechanism, the lower ejection mechanism comprises a spring 527 and a lower ejector pin 528 which are sequentially arranged from bottom to top, the bottom of the spring 527 is fixed on the lower die plate 3, the top of the spring is abutted to the bottom of the lower ejector pin 528, and the top of the lower ejector pin 528 is flush with the top surface of the second lower die 530 after penetrating through the second lower base plate 529 from bottom to top.
In order to facilitate detection of whether the material belt is delivered in place, an inductor fixing block 16 for installing an inductor is arranged on the upper surface of the rightmost end of the lower template, and the inductor is used for detecting the feeding position of the material belt.
The stamping method based on the continuous stamping die comprises the following steps:
A. feeding the material belt into a die through a feeding plate;
B. the trimming process stamping die performs the following operations on the material belt:
B1. punching, wherein the punch 107 and the concave sleeve 126 are matched;
B2. trimming, the first upper profiled punch 108 and the first lower die insert 128 are completed in a matched manner;
B3. trimming, the second upper profiled punch 109 and the second lower die insert 129 are completed in a matched manner;
B4. trimming, wherein the third upper abnormal punch 113 and the third lower die insert 130 are matched;
B5. trimming, the fourth upper abnormal punch 114 and the fourth lower die insert 131 are matched;
B6. performing a blank step;
C. and C, carrying out the following operations on the material belt processed in the step B by a chamfering procedure stamping die:
C1. chamfering, wherein the upper stripper plate 206 and the lower die 202 are matched;
C2. performing a blank step;
D. the stamping die of the forming procedure carries out the following operations on the material belt processed in the step C:
D1. forming, the first upper forming punch 307 and the first lower die insert 313 are completed in a matched manner;
D2. performing a blank step;
D3. forming, the second upper forming punch 308 and the second lower die insert 314 are completed in a matched manner;
D4. shaping, namely finishing the matching of the second upper stripper plate insert 312 and the third lower die insert 315;
D5. performing a blank step;
E. the stamping die in the evacuation procedure carries out the following operations on the material belt processed in the step D:
E1. stretching, wherein the upper stretching punch 408 and the stretching concave sleeve 420 are matched;
E2. embossing and engraving, wherein the embossing punch 411 and the embossing die 425 are matched;
E3. punching, wherein the punch 414 and the punching die 426 are matched;
E4. the hole drawing, the upper hole drawing punch 416 and the hole drawing die 429 are matched;
E5. shaping, the second upper stripper plate insert 417 and the lower die insert 430 are completed in a matched manner;
E6. performing a blank step;
F. and E, trimming and stripping the stamping die, and carrying out the following operations on the material belt processed in the step E:
F1. performing a blank step;
F2. trimming and pre-punching, wherein the first upper special-shaped punch 507 and the first lower die insert 521 are matched;
F3. fine blanking, the second upper special-shaped punch 511 and the second lower die insert 522 are completed in a matched manner;
F4. shaping, wherein the third upper stripper plate insert 517 and the fourth lower die insert 526 are matched;
F5. performing a blank step;
F6. the cutting, upper cutting punch 518 and the second lower die 530 are completed in cooperation.
As shown in fig. 8, a press process flow chart of the press method is shown.
In summary, the invention has the following advantages:
the material belt is sequentially punched through the trimming process stamping die, the chamfering process stamping die, the forming process stamping die, the extracting Kong Gongxu stamping die and the trimming stripping process stamping die, the formed automobile door rear support material sheet is obtained, the extracting hole of the formed automobile door rear support material sheet is not easy to crack, and the size precision is high, so that the requirement of a customer size standard is met.
It is to be understood that the foregoing detailed description of the invention is merely illustrative of the invention and is not limited to the embodiments of the invention. It will be understood by those of ordinary skill in the art that the present invention may be modified or substituted for elements thereof to achieve the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.
Claims (3)
1. The utility model provides a continuous stamping die of car door rear bracket which characterized in that: the automatic trimming and peeling machine comprises an upper positioning plate, an upper pad foot, an upper template, a lower pad foot and a lower positioning plate which are arranged from top to bottom, wherein a feeding plate, a trimming process stamping die, a chamfering process stamping die, a forming process stamping die, a drawing Kong Gongxu stamping die and a trimming and peeling process stamping die are arranged between the upper template and the lower template in sequence from left to right;
the trimming procedure stamping die comprises a first upper base plate, a second upper base plate, an upper fixing plate, an upper discharging plate, a lower die and a lower base plate which are arranged from top to bottom, wherein the bottom surface of the second upper base plate is sequentially provided with a punch, a first upper abnormal-shape punch, a second upper abnormal-shape punch, a third upper abnormal-shape punch and a fourth upper abnormal-shape punch from left to right, the punch, the first upper abnormal-shape punch, the second upper abnormal-shape punch, the third upper abnormal-shape punch and the fourth upper abnormal-shape punch sequentially pass through the upper fixing plate and the upper discharging plate from top to bottom, the bottom surface of the upper discharging plate is fixedly provided with an upper guide punch and is positioned on the right side of the fourth upper abnormal-shape punch, a first upper ejection mechanism is arranged between the second upper abnormal-shape punch and the third upper abnormal-shape punch, the first upper ejection mechanism comprises a spring and an upper ejector rod which are arranged from top to bottom, the top of the spring is fixed on the upper positioning plate, the bottom is abutted to the top of the upper ejector rod, the bottom of the upper ejector rod is propped against the top surface of the upper stripper plate after penetrating through the upper base plate and the upper fixing plate from top to bottom, a second upper ejection mechanism is arranged between the fourth upper special-shaped punch and the upper guide punch, the second upper ejection mechanism comprises a screw plug, a spring and an upper ejector pin which are arranged from top to bottom, the top of the screw plug is fixed on the upper fixing plate, the bottom of the screw plug is propped against the top of the spring, the bottom of the spring is propped against the top of the upper ejector pin, the bottom of the upper ejector pin is propped against the lower die after penetrating through the upper stripper plate, a pressing plate, a concave sleeve, a first lower die insert, a second lower die insert, a third lower die insert and a fourth lower die insert are sequentially arranged in the lower die from left to right, the concave sleeve is positioned below the punch, the first lower die insert is positioned below the first upper special-shaped punch, the second lower die insert is positioned below the second upper special-shaped punch, the third lower die insert is positioned below the third upper special-shaped punch, the fourth lower die insert is positioned below the fourth upper special-shaped punch, the lower guide jacking block, the spring and the screw plug are sequentially arranged below the pressing plate from top to bottom, the bottom of the spring is fixed in the lower template through the screw plug, the top of the lower guide jacking block is propped against the bottom surface of the pressing plate, the bottom of the lower guide jacking block is propped against the top of the spring, a first lower jacking pin is arranged between the concave sleeve and the first lower die insert, the bottom of the first lower jacking pin is fixed on the lower template through the spring, the top of the first lower jacking pin is flush with the top surface of the lower die after penetrating through the lower base plate, a second lower jacking pin is arranged right below the upper guide punch, the bottom of the second lower jacking pin is fixed on the lower template through the spring, and the top of the second lower jacking pin is flush with the top surface of the lower die after penetrating through the lower base plate;
the chamfering process stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate back plate, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein a character die and an upper guide punch are sequentially arranged on the bottom surface of the upper stripper plate back plate from left to right, a spring and an upper ejector rod are arranged above the upper stripper plate back plate above the character die from top to bottom, the top of the spring is fixed on the upper locating plate, the bottom of the spring is abutted to the top of the upper ejector rod, the upper ejector rod penetrates through the upper base plate from top to bottom, the bottom of the upper fixing plate is abutted to the top surface of the upper stripper plate back plate, a lower ejector pin is arranged on the right side of the upper guide punch, the bottom of the lower ejector pin is fixed on the lower die plate through the spring, and the top of the upper ejector pin is flush with the top surface of the lower die after penetrating through the lower base plate;
the stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate back plate, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein a first upper forming punch and a second upper forming punch are sequentially arranged on the bottom surface of the upper base plate from left to right;
the punching die comprises an upper backing plate, an upper fixing plate, an upper stripper plate, a lower die and a lower backing plate which are arranged from top to bottom, wherein a first upper stripper plate insert and a second upper stripper plate insert are sequentially arranged at the bottom of the upper stripper plate from left to right, an upper stretching punch, an upper punching convex punch, a punch and an upper punching punch are sequentially arranged at the bottom of the upper backing plate from left to right, the upper stretching punch, the upper punching convex punch, the punch and the upper punching punch all penetrate through the upper fixing plate, the upper stripper plate and the upper stripper plate insert from top to bottom, an upper guide punch is arranged between the upper stretching punch and the upper punching convex punch, the top of the upper guide punch is fixed at the bottom of the upper stripper plate, an upper ejection mechanism is arranged at the right side of the upper punching punch and comprises a first nitrogen spring and an upper ejector rod which are arranged from top to bottom, the top of the first nitrogen spring is fixed on the upper locating plate, the bottom of the first nitrogen spring is abutted against the top of the upper ejector rod, the upper ejector rod passes through the upper backing plate from top to bottom, the rear bottom of the upper fixing plate is abutted against the top surface of the upper stripper plate, a stretching concave sleeve, a punching concave die, a hole-punching concave die and a lower die insert are sequentially arranged in the lower die from left to right, the stretching concave sleeve is arranged below the upper stretching punch, the hole-punching concave die is arranged below the upper punching convex punch, the hole-punching concave die is arranged below the punch, the lower die insert is arranged below the upper ejector rod and is positioned below the second upper stripper plate insert, a first lower ejection mechanism is arranged below the hole-punching concave die, the first lower ejection mechanism comprises an indirect top plate, a first lower ejector rod, a lower cushion block and a second lower ejector rod which are sequentially arranged from bottom to top, the bottom of the indirect top plate is fixed on the lower locating plate, the bottom of the first lower ejector rod is abutted against the top of the indirect top plate, the top of the lower cushion block is abutted against the bottom of the lower cushion block, the top of the second lower ejector rod is abutted against the bottom of the punching convex concave die after penetrating through the lower base plate, a second lower ejection mechanism is arranged below the punching concave die, the second lower ejection mechanism comprises a second nitrogen spring and a third lower ejector rod which are sequentially arranged from bottom to top, the bottom of the second nitrogen spring is fixed on the lower positioning plate, the top of the second nitrogen spring is abutted against the bottom of the third lower ejector rod, and the top of the third lower ejector rod is abutted against the bottom of the punching concave die after penetrating through the lower base plate;
the trimming and stripping process stamping die comprises an upper base plate, an upper fixing plate, an upper stripper plate backboard, an upper stripper plate, a lower die and a lower base plate which are arranged from top to bottom, wherein the lower die comprises a first lower die and a second lower die which are sequentially arranged from left to right, the lower base plate comprises a first lower base plate arranged below the first lower die and a second lower base plate arranged below the second lower die, a first upper abnormal-shape punch, a second upper abnormal-shape punch, a third upper abnormal-shape punch and an upper cutting punch are sequentially arranged at the bottom of the upper base plate from left to right, the first upper abnormal-shape punch, the second upper abnormal-shape punch, the third upper abnormal-shape punch and the upper cutting punch sequentially penetrate through the upper fixing plate, the upper stripper plate backboard and the upper stripper plate from top to bottom, a first upper cutting edge and a second upper cutting edge are arranged below the second upper abnormal-shape punch and the third upper abnormal-shape punch, an upper guide punch is arranged on the right side of the second upper cutting edge, the top of the upper guide punch is fixed at the bottom of the upper stripper plate, a first upper stripper plate insert, a second upper stripper plate insert and a third upper stripper plate insert are sequentially arranged in the upper stripper plate from left to right, the first upper stripper plate insert is arranged below the first upper abnormal punch, the second upper stripper plate insert and the third upper stripper plate insert are both positioned between the upper guide punch and the upper cutting punch, the second lower die is positioned below the upper cutting punch, a first upper ejection mechanism is arranged between the third upper stripper plate insert and the upper cutting punch and comprises a nitrogen spring and an upper ejector rod which are sequentially arranged from top to bottom, the top of the nitrogen spring is fixed on the upper positioning plate, the bottom of the nitrogen spring is abutted to the top of the upper ejector rod, the bottom of the upper ejector rod is abutted to the top surface of the upper stripper plate backboard, the right side of the upper cutting punch is provided with a second upper ejection mechanism which comprises a spring and an upper ejector pin which are arranged from top to bottom, the spring top is fixed in upper backing plate bottom, bottom butt in last knock-out pin top, go up knock-out pin bottom butt on the second lower mould, be equipped with first lower mould insert from left to right in the first lower mould in proper order, the second lower mould insert, the third lower mould insert, first lower blade, the second lower blade, the fourth lower mould insert, first upper abnormal shape drift below is located to first lower mould insert, second upper abnormal shape drift below is located to the second lower mould insert, third lower mould insert is located third upper abnormal shape drift below, first lower blade and second lower blade are located and are guided the drift below, the fourth lower mould insert is located third upper stripper insert below, fourth lower mould insert right side is equipped with ejection mechanism down, ejection mechanism down includes spring and lower knock-out pin that sets gradually from bottom to top, the bottom of spring is fixed in the lower bolster, the top butt is in lower knock-out pin bottom, the knock-out pin passes second lower backing plate back top and flushes with second lower mould top from bottom to top.
2. The continuous stamping die for a rear door bracket according to claim 1, wherein: the upper surface of the rightmost end of the lower template is provided with an inductor fixing block for installing an inductor, and the inductor is used for detecting the feeding position of the material belt.
3. The stamping method based on the continuous stamping die for the rear bracket of the automobile door of claim 1, comprising the following steps:
A. feeding the material belt into a die through a feeding plate;
B. the trimming process stamping die performs the following operations on the material belt:
B1. punching, wherein the punch and the concave sleeve are matched;
B2. trimming, namely finishing the matching of the first upper abnormal punch and the first lower die insert;
B3. trimming, namely finishing the matching of the second upper abnormal punch and the second lower die insert;
B4. trimming, namely finishing the matching of the third upper abnormal punch and the third lower die insert;
B5. trimming, namely finishing the matching of the fourth upper abnormal punch and the fourth lower die insert;
B6. performing a blank step;
C. and C, carrying out the following operations on the material belt processed in the step B by a chamfering procedure stamping die:
C1. chamfering, namely finishing the matching of the upper discharging plate and the lower die;
C2. performing a blank step;
D. the stamping die of the forming procedure carries out the following operations on the material belt processed in the step C:
D1. forming, namely finishing the matching of the first upper forming punch and the first lower die insert;
D2. performing a blank step;
D3. forming, namely finishing the matching of the second upper forming punch and the second lower die insert;
D4. shaping, namely finishing the matching of the second upper stripper plate insert and the third lower die insert;
D5. performing a blank step;
E. the stamping die in the evacuation procedure carries out the following operations on the material belt processed in the step D:
E1. stretching, wherein the upper stretching punch and the stretching concave sleeve are matched;
E2. embossing and engraving, wherein the embossing punch is matched with the embossing die;
E3. punching, wherein the punch and the punching female die are matched;
E4. the hole drawing is completed by matching an upper hole drawing punch with a hole drawing female die;
E5. shaping, namely finishing the matching of the second upper stripper plate insert and the lower die insert;
E6. performing a blank step;
F. and E, trimming and stripping the stamping die, and carrying out the following operations on the material belt processed in the step E:
F1. performing a blank step;
F2. trimming and pre-punching, wherein the first upper abnormal punch and the first lower die insert are matched;
F3. fine blanking, wherein the second upper abnormal punch and the second lower die insert are matched;
F4. shaping, namely finishing the matching of the third upper stripper plate insert and the fourth lower die insert;
F5. performing a blank step;
F6. cutting, and matching the upper cutting punch with the second lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710758565.XA CN107377760B (en) | 2017-08-29 | 2017-08-29 | Continuous stamping die for automobile door rear support and stamping method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710758565.XA CN107377760B (en) | 2017-08-29 | 2017-08-29 | Continuous stamping die for automobile door rear support and stamping method thereof |
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| CN107377760A CN107377760A (en) | 2017-11-24 |
| CN107377760B true CN107377760B (en) | 2023-05-16 |
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| CN108188269B (en) * | 2018-01-26 | 2023-05-16 | 宁波震裕科技股份有限公司 | Multi-row pre-punching progressive die for U-shaped sheet and punching process |
| CN108393397B (en) * | 2018-05-10 | 2023-09-15 | 无锡诺飞高新技术有限公司 | Continuous stamping die for automobile corner plate pieces |
| CN108311597B (en) * | 2018-05-11 | 2024-01-26 | 无锡诺飞高新技术有限公司 | Stamping die for bus rail material sheet of automobile seat bus rail |
| CN108746351B (en) * | 2018-06-25 | 2023-09-08 | 海盐巨龙消防设备有限公司 | Stamping device for valve handle of fire extinguisher |
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| CN109482729A (en) * | 2018-12-20 | 2019-03-19 | 重庆市渝坝汽车配件有限公司 | Flywheel disk molding die |
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| CN111468607A (en) * | 2020-05-26 | 2020-07-31 | 菲斯达排放控制装置（苏州）有限公司 | Stamping and bending integrated stamping die |
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| DE29611523U1 (en) * | 1996-02-26 | 1996-08-29 | Marbach Gmbh Karl | Stamping and molding tool |
| CN103831347A (en) * | 2012-11-20 | 2014-06-04 | 无锡市亚青机械厂 | Edge trimming and punching die for automobile anti-collision beam mounting support |
| CN103121060B (en) * | 2013-02-05 | 2015-01-14 | 深圳市中金高能电池材料有限公司 | Forming die and punching machine for punching of lithium-ion energy-storing current collector material and die machining method |
| CN203737815U (en) * | 2014-03-11 | 2014-07-30 | 无锡市杰夫精工机械有限公司 | Thick material extrusion draw hole stamping die |
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| CN205763295U (en) * | 2016-06-28 | 2016-12-07 | 无锡诺飞高新技术有限公司 | Automotive seat lower margin continuous stamping die |
| CN105945138B (en) * | 2016-06-28 | 2017-12-19 | 无锡诺飞高新技术有限公司 | Automotive seat lower margin continuous punching method |
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| CN106862386B (en) * | 2017-03-11 | 2020-02-18 | 广州永盟汽车零部件有限公司 | Stamping system for lower support of front rocker arm of automobile |
| CN207086683U (en) * | 2017-08-29 | 2018-03-13 | 无锡诺飞高新技术有限公司 | Car door after-poppet continuous stamping die |
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