CN104959460B - Slant punching die structure and punching method for automobile metal plate punch piece - Google Patents
Slant punching die structure and punching method for automobile metal plate punch piece Download PDFInfo
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- CN104959460B CN104959460B CN201510418918.2A CN201510418918A CN104959460B CN 104959460 B CN104959460 B CN 104959460B CN 201510418918 A CN201510418918 A CN 201510418918A CN 104959460 B CN104959460 B CN 104959460B
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- slide block
- punching
- block mechanism
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- stamping parts
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/32—Perforating, i.e. punching holes in other articles of special shape
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a die structure for an automobile metal plate punch piece and a punching method thereof, and provides a slant punching die structure of the automobile metal plate punch piece. The slant punching die structure of the automobile metal plate punch piece comprises a first sliding block mechanism (15) which moves horizontally and is provided with a punching concave die (8) and a second sliding block mechanism which moves aslant and is provided with a punching convex die (4). A material returning rod (10) is connected with the first sliding block mechanism through a limiting unit and a reset spring (9). When the material returning rod (10) makes contact with a stop dog (13), the reset spring (9) is pressed, the end portion of the material returning rod (10) moves outward and stretches out of waste material (19) pushed out of a hole cavity of the punching concave die (8). The punching method comprises the four stages that a die is opened, and the punch piece is placed; the die is closed, and punching is conducted; punching is finished, and the die is opened; the waste material is pushed out, and the punch die is taken out. According to the slant punching die structure of the automobile metal plate punch piece and the punching method thereof, the waste material of a slant punched hole is guaranteed to smoothly flow to a waste material sliding plate or a waste material groove, at the same time, the specific intensity of the die can be improved, the conveying condition of taking and placing the punch piece on a production line is improved, stable component positioning is guaranteed, the production takt is improved, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of mould structure to plates of automobile stamping parts and hole-punching method thereof, particularly relate to the oblique punching die structure of one and the hole-punching method of plates of automobile stamping parts.
Background technology
At present, in automobile manufacturing field, generally all identical with punching direction to the waste streams outgoing direction of metal plate punching part punching, this impact style, is feasible generally for plate shaped stamping parts, feeding, punching, blanking, also can suitable automatization.But, for the edge of sheet material, through twice bending, Formation cross-section is similar to n shape, punching at flanging, and after its feeding, punching, blanking and punching, the discharge of waste material is relatively difficult, and the part bigger particularly with platen area is the most difficult.The bonnet part of such as passenger car, bonnet area is very big, and lower limb must go out the light hole of some rectangles after twice bending, and the most traditional punch pattern is difficult to realize.
Additionally, the taking-up of waste material can not be realized for the oblique punching of some metal plate punching parts, in order to smoothly complete the bending edges punching of bending component, after the traditional hook punch mechanism of general employing or rotation metal plate punching part, rotate to bending edges vertically complete with horizontal side punch mechanism；But often there are some problems in these mechanisms.
First, for hooking punch mechanism, after punching terminates, in order to ensure the smooth taking-up of part, hook the hook in punch mechanism and rush the stroke of stepping down that parts needs are bigger, but also want to hook on installing mechanism slide block in headspace to rush punch, the parts such as side pressure flitch, hook generally rushes parts being designed to cross section is triangle, the structures such as trapezoidal or wedge shape ensure certain stroke of stepping down, but such design frequently can lead to hook, and to rush parts thin, intensity difference, stress is poor, not only affect punching precision, and easily cause slide block and rupture at this, there is bigger potential safety hazard.The punching of the most this form all receives certain restriction in big-and-middle-sized metal plate punching part side punching, the application of oblique impact hole.
With reference to Fig. 1, hooking punch mechanism 32 and be provided with punching die, after completing punching, driving means 32b hooking punch mechanism starts, and hooks and rushes after parts 32a moves LAP h towards upper left, and workpiece 17 takes out.
Second, for horizontal side punch mechanism, although bending edges can complete the outflow of normal punching and waste material after vertically putting, but due to non-bending edges vertically put or oblique putting can cause part drop and the degree of depth big, stroke is picked and placeed for part in transfer matic production process the biggest, the operation stroke of upper mold is big, have a strong impact on line tact and production efficiency, additionally part location difficulty, location instability can improve percent defective and outage rate, cause damage to production equally, will also result in waste streams outbound path complex-shaped, also easy reservation or revocation material, and it is invisible, these are all that automated production is abstained from.
With reference to Fig. 2, workpiece 17 is vertically put, and after bending edges to be processed completes the outflow of normal punching and waste material, upper mold 21 moves up one section of larger row journey, and workpiece 17 could take out.
Summary of the invention
The invention aims to overcome the shortcoming of prior art, there is provided a kind of and safe, convenient can place stamping parts, it is easy to the waste material after punching automatically release, after punching, workpiece is easily removed, and favorably production lines is sent, the body of tool of mould is rational in infrastructure, and intensity is good, non-damageable mould structure, and corresponding punching way is proposed.
The purpose of the present invention is realized by techniques below scheme:
A kind of oblique punching die structure of plates of automobile stamping parts, it is characterised in that:
Described oblique punching die mechanism includes the first slide block mechanism and the second slide block mechanism, first slide block mechanism is the slide block mechanism of horizontal movement, second slide block mechanism is the slide block mechanism of oblique movement, and the work surface of its first slide block mechanism and the second slide block mechanism is oppositely arranged；
First slide block mechanism is provided with punching concave die, and the second slide block mechanism is provided with piercing punch, and the punching direction of described punching concave die is consistent with piercing punch；
One material returned bar, described material returned bar is connected by position-limiting unit and back-moving spring and the first slide block mechanism；
One block, described block is fixedly connected on pedestal；
Described first slide block mechanism is in the motion leaving the second slide block mechanism, and its material returned bar contacts with block, pressed home spring, and the end of material returned bar is displaced outwardly stretching out the vestibule of punching concave die；
Described first slide block mechanism and the second slide block mechanism are the part of the lower die of described oblique punching die mechanism, when upper and lower mould closure state, described first slide block mechanism and the second slide block mechanism close up, when upper and lower mould open mode, described first slide block mechanism and the second slide block mechanism separate；
Described stamping parts is big panel on the n shape that inventive die schematic diagram direction of observation is a long limit, long limit, and minor face is punched-plate, and centre is bending edges；
Described second slide block mechanism includes that guide plate obliquely, described piercing punch are configured at obliquely on guide plate；
The upper surface of described first slide block mechanism be the long limit of the big panel of stamping parts shelve face,
Punching concave die is less than the bending edges length of stamping parts together with the length that material returned bar rearwardly exits；
When described first slide block mechanism and the second slide block mechanism close, and piercing punch merges with punching concave die, and the minor face of stamping parts clamps therebetween, and punching concave die props up the bending edges inwall of stamping parts.
Further, when described stamping parts is placed, the port of minor face inflection keeps d horizontal range, a length of 5 10mm of d with described punching concave die overhanging end.
Further, the contact surface of described material returned bar and block is vertical, or with vertically form the face of an angle, if the punching direction of described mould and horizontal direction angle are α, then contact surface and the angle vertically formed are less than α/2.
Further, the afterbody at described material returned bar offers the through hole consistent with material returned bar moving direction, inserts the caging bolt being fixed in punching concave die in through hole, and the bolt head of caging bolt limits material returned bar and rearwardly ejects.
Further, the top of described piercing punch also sets up the side pressure flitch supported by lateral pressing flat spring, and described side pressure flitch is provided with the punch hole mated with punch.
Further, the end face that stretches out at described piercing punch and/or material returned bar also configures that bullet ejector pin.
Further, described second slide block mechanism also includes the A slide block moved up and down, and is converted to the B slide block moved horizontally through inclined-plane, and is converted to the C slide block composition of oblique movement through vertical；First slide block mechanism also includes the D slide block moved up and down, and the E slide block being converted to move horizontally through inclined-plane is constituted.
A kind of hole-punching method of the oblique punching die structure such as described plates of automobile stamping parts, it is characterised in that: use the technical program to have four-stage,
First stage: mould is opened, place stamping parts
Upper holding pad is in the open mode of press top dead-centre with upper mold, the punching concave die being arranged on the first slide block mechanism and the piercing punch being arranged on the second slide block mechanism are separated from each other, block is in material returned bar and contacts or contactless state, and material returned bar is made the end of material returned bar be in the vestibule of punching concave die by back-moving spring and position-limiting unit；The bending edges of stamping parts and minor face are downward, and long limit is shelved on the upper surface of the first slide block mechanism；
Second stage: mould closes, punching
Upper mold and upper holding pad move downward, punching concave die on first slide block mechanism and the piercing punch being arranged on the second slide block mechanism move towards, piercing punch diagonally moves in upper guide plate direction, the long limit of stamping parts cavity between upper mold and the first slide block mechanism upper surface, punching concave die props up the bending edges inwall of stamping parts, the minor face of stamping parts is held between punching concave die and the cutting edge of piercing punch, upper mold and upper holding pad continue to move downward, piercing punch punching, punched scrap is contained in punching concave die vestibule；
Phase III: punching terminates, open mould
Upper mold drives upper holding pad to move upwardly together, upper holding pad disengages stamping parts, punching concave die on first slide block mechanism and the piercing punch being arranged on the second slide block mechanism are separated from each other, and piercing punch leaves stamping parts, the material returned bar just contact blocks in punching concave die；
Fourth stage: eject waste material, takes out stamping parts
Punching concave die continues to retreat, the material returned bar compressing block in punching concave die, pressed home spring, and the end of material returned bar is displaced outwardly, and punched scrap is ejected punching concave die vestibule, falls on the waste sliding plate of lower section or in reject chute, takes out stamping parts.
Beneficial effects of the present invention:
For special plates of automobile stamping parts, special construction: large area sheet material, in place of punching is positioned at the flanging flanging again of side, use the technical program:
(1) solve waste material and flow out difficult problem, it is ensured that punched scrap flows out on waste sliding plate or in reject chute smoothly；
(2) in order to improve mold tool body and side blow mechanism tool body intensity, it is to avoid economic loss that its frequent breakage causes and to normally producing the adverse effect caused；
(3) improve on a production line pick and place part transport condition, and ensure stable part location, improve productive temp, improve production efficiency.
Accompanying drawing explanation
The above and other feature of the present invention, character and advantage are by by becoming apparent with the description of embodiment below in conjunction with the accompanying drawings, and the most identical reference represents identical feature all the time, wherein:
Fig. 1 is the schematic diagram hooking punch mechanism in prior art；
Fig. 2 is the schematic diagram of horizontal side punch mechanism in prior art；
Fig. 3 is the oblique punching die structure one embodiment of plates of automobile stamping parts of the present invention, the axonometric chart that plates of automobile stamping parts is passenger car back shroud workpiece in the present embodiment；
Fig. 4 is the view that Fig. 3 is observed by automobile rear；
Fig. 5 is Fig. 3 automobile rear case plate workpiece observation view at inventive die schematic diagram direction of observation；
Fig. 6 is a kind of embodiment structure chart of the oblique punching die structure of the present invention, shows the first stage of hole-punching method four-stage of the present invention: mould is opened simultaneously, places the state of stamping parts；
Fig. 7 is the second stage of hole-punching method four-stage of the present invention: mould closes, punching view；
Fig. 8 is the partial enlarged drawing at Fig. 7 punching position；
Fig. 9 is the phase III of hole-punching method four-stage of the present invention: punching terminates, and opens mould view；
Figure 10 is the fourth stage of hole-punching method four-stage of the present invention: eject waste material, takes out stamping parts view；
Figure 11 is a kind of embodiment of the oblique punching die structure of the present invention, and material returned bar uses the assembling of caging bolt, structural representation.
In figure, 1-the second slide block mechanism, 1a-A slide block, 1b-B slide block, 1c-C slide block, 2-punch slide guide strip, 3-lateral pressing flat spring, 4-piercing punch, 5-side pressure flitch, 6-bullet ejector pin, 7-bullet ejector pin, 8-punching concave die, 9-back-moving spring, 10-material returned bar, 11-waste sliding plate, 12-pedestal, 13-block, 14-die slide guide strip, 15-the first slide block mechanism, 15d-D slide block, 15e-E slide block, the upper holding pad of 16-, 17-workpiece, the long limit of a-, b-minor face, c-bending edges, 18-caging bolt, 19-waste material.
21-upper mold, 22-horizontal side punch mechanism.
31-upper mold, 32-hook punch mechanism, and 32a-hooks and rushes parts, and 32b-hooks the driving means of punch mechanism.
Detailed description of the invention
Structure and the hole-punching method of the present invention is further described below in conjunction with accompanying drawing.
A kind of oblique punching die structure of plates of automobile stamping parts,
Described oblique punching die mechanism includes the first slide block mechanism 15 and the second slide block mechanism 1, first slide block mechanism 15 is the slide block mechanism of horizontal movement, second slide block mechanism 1 is the slide block mechanism of oblique movement, and its first slide block mechanism 15 is oppositely arranged with the work surface of the second slide block mechanism 1；
First slide block mechanism 15 is provided with punching concave die 8, and the second slide block mechanism 1 is provided with piercing punch 4, and the punching direction of described punching concave die 8 is consistent with piercing punch 4；
One material returned bar 10, described material returned bar 10 is connected with the first slide block mechanism by position-limiting unit and back-moving spring 9；
One block 13, described block 13 is fixedly connected on static pedestal 12；
Described first slide block mechanism 15 is in the motion leaving the second slide block mechanism 1, and its material returned bar 10 contacts with block 13, pressed home spring 9, and the end of material returned bar 10 is displaced outwardly stretching out the vestibule of punching concave die 8；
Described first slide block mechanism 15 and the part of the lower die that the second slide block mechanism 1 is described oblique punching die mechanism, when upper and lower mould closure state, described first slide block mechanism 15 and the second slide block mechanism 1 close up, and when upper and lower mould open mode, described first slide block mechanism 15 and the second slide block mechanism 1 separate.
As being embodied as citing, described stamping parts 17 cross section is the n shape on a long limit, and long limit a is big panel, and minor face b is punched-plate, and centre is bending edges c, similar automobile, the bonnet part of passenger car.
Described second slide block mechanism 1 includes that guide plate 2 obliquely, described piercing punch 4 are configured at obliquely on guide plate 2；
The upper surface of described first slide block mechanism 15 be stamping parts 17 big panel long limit a shelve face,
Punching concave die 8 is less than the bending edges c length of stamping parts 17 together with the length that material returned bar 10 rearwardly exits；
When described first slide block mechanism 15 and the second slide block mechanism 1 close, and piercing punch 4 merges with punching concave die 8, the minor face b of stamping parts 17 clamps therebetween, and punching concave die 8 props up the bending edges c inwall of stamping parts 17.
Preferably embodiment is, when described stamping parts 17 is placed, the port of minor face b inflection keeps d horizontal range, a length of 5 10mm of d with described punching concave die 8 overhanging end.Putting when keeping such distance to be easy to stamping parts 17 punching, the most unlikely stamping parts 17 and the point of punching concave die 8 of damaging.
Preferably embodiment is that the contact surface of described material returned bar 10 and block 13 is vertical, or with vertically form the face of an angle, if the punching direction of described mould and horizontal direction angle are α, then contact surface and the angle vertically formed are less than α/2.Vertical is selected to be easy for design, make, but special circumstances, need according to occasion or limited by occasion, the angle configuration that can be selected for the technical program also can reach the purpose of the present invention.
Preferably embodiment is that the afterbody at described material returned bar 10 offers the through hole consistent with material returned bar 10 moving direction, inserts the caging bolt 18 being fixed in punching concave die 8 in through hole, and the bolt head of caging bolt 18 limits material returned bar 10 and rearwardly ejects.This scheme is one of scheme of rearwardly ejecting of optional restriction material returned bar 10, and simple in construction is easy to assembly, uses reliable.
Preferably embodiment is that the top of described piercing punch 4 also sets up the side pressure flitch 5 supported by lateral pressing flat spring 3, and described side pressure flitch 5 is provided with the punch hole mated with punch.Stamping parts 17, advantageously stable punching operation are favorably pushed down in this measure.
Preferably embodiment is, the end face that stretches out at described piercing punch 4 and/or material returned bar 10 also configures that bullet ejector pin 6,7.After this programme can make punching, the unlikely punch 4 that is punched of waste material 19 is taken out of so that waste material 19 is unlikely to be released by material returned bar 10 and take back.
Detailed description of the invention, it may be that described second slide block mechanism 1 also includes the A slide block 1a moved up and down, is converted to the B slide block 1b moved horizontally, and is converted to the C slide block 1c composition of oblique movement through vertical through inclined-plane；First slide block mechanism 15 also includes the D slide block 15d moved up and down, and the E slide block 15e being converted to move horizontally through inclined-plane is constituted.This structure, it is simple to the second slide block mechanism 1 is simple, direct, reliably transmit power in the desired direction, also allows for the first slide block mechanism 15 and directly transmits power in the desired direction.
It addition, the hole-punching method of the oblique punching die structure of described plates of automobile stamping parts, the technical program is used to have four-stage,
First stage: mould is opened, place stamping parts
Upper holding pad is in the open mode of press top dead-centre with upper mold, the punching concave die 8 being arranged on the first slide block mechanism 15 and the piercing punch 4 being arranged on the second slide block mechanism 1 are separated from each other, block 13 is in material returned bar 10 and contacts or contactless state, and material returned bar 10 is made the end of material returned bar 10 be in the vestibule of punching concave die 8 by back-moving spring 9 and position-limiting unit；The bending edges c and minor face b of stamping parts 17 is downward, and long limit a is shelved on the upper surface of the first slide block mechanism 15；
Second stage: mould closes, punching
Upper mold and upper holding pad move downward, punching concave die 8 on first slide block mechanism 15 and the piercing punch 4 being arranged on the second slide block mechanism 1 move towards, piercing punch 4 diagonally moves in upper guide plate 2 direction, the long limit a of stamping parts 17 cavity between upper mold and the first slide block mechanism 15 upper surface, punching concave die 8 props up the bending edges c inwall of stamping parts 17, the minor face b of stamping parts 17 is held between the cutting edge of punching concave die 8 and piercing punch 4, upper mold and upper holding pad continue to move downward, piercing punch 4 punching, punched scrap 19 is contained in punching concave die 8 vestibule；
Phase III: punching terminates, open mould
Upper mold drives upper holding pad to move upwardly together, upper holding pad disengages stamping parts 17, punching concave die 8 on first slide block mechanism 15 and the piercing punch 4 being arranged on the second slide block mechanism 1 are separated from each other, and piercing punch 4 leaves stamping parts 17, material returned bar 10 just contact blocks 13 in punching concave die 8；
Fourth stage: eject waste material, takes out stamping parts
Punching concave die 8 continues to retreat, and the material returned bar 10 in punching concave die 8 oppresses block 13, pressed home spring 9, and the end of material returned bar 10 is displaced outwardly, and punched scrap is ejected punching concave die 8 vestibule, falls on the waste sliding plate of lower section or in reject chute, takes out stamping parts.
Although the present invention is open as above with preferred embodiment, but it is not for limiting the present invention.Any those skilled in the art without departing from the spirit and scope of the present invention, can make possible variation and amendment.Therefore, every content without departing from technical solution of the present invention, any amendment, equivalent variations and the modification made above example according to the technical spirit of the present invention, within each falling within the protection domain that the claim of the present invention is defined.
Claims (8)
1. the oblique punching die structure of a plates of automobile stamping parts, it is characterised in that:
Described oblique punching die mechanism includes the first slide block mechanism (15) and the second slide block mechanism (1), first slide block mechanism (15) is the slide block mechanism of horizontal movement, second slide block mechanism (1) is the slide block mechanism of oblique movement, and its first slide block mechanism (15) is oppositely arranged with the work surface of the second slide block mechanism (1)；
First slide block mechanism (15) is provided with punching concave die (8), second slide block mechanism (1) is provided with piercing punch (4), and the punching direction of described punching concave die (8) is consistent with piercing punch (4)；
One material returned bar (10), described material returned bar (10) is connected with the first slide block mechanism by position-limiting unit and back-moving spring (9)；
One block (13), described block (13) is fixedly connected on pedestal (12)；
Described first slide block mechanism (15) is in the motion leaving the second slide block mechanism (1), its material returned bar (10) contacts with block (13), pressed home spring (9), the end of material returned bar (10) is displaced outwardly stretching out the vestibule of punching concave die (8)；
Described first slide block mechanism (15) and the second slide block mechanism (1) are the part of the lower die of described oblique punching die mechanism, when upper and lower mould closure state, described first slide block mechanism (15) and the second slide block mechanism (1) close up, when upper and lower mould open mode, described first slide block mechanism (15) and the second slide block mechanism (1) separate；
Described stamping parts (17) cross section is the n shape on a long limit, and long limit (a) is big panel, and minor face (b) is punched-plate, and centre is bending edges (c)；
Described second slide block mechanism (1) includes that guide plate (2) obliquely, described piercing punch (4) are configured at obliquely on guide plate (2)；
The upper surface of described first slide block mechanism (15) be the big long limit (a) of panel of stamping parts (17) shelve face,
Punching concave die (8) is less than bending edges (c) length of stamping parts (17) together with the length that material returned bar (10) rearwardly exits；
When described first slide block mechanism (15) and the second slide block mechanism (1) close, piercing punch (4) merges with punching concave die (8), the minor face (b) of stamping parts (17) clamps therebetween, and punching concave die (8) props up bending edges (c) inwall of stamping parts (17).
The most oblique punching die structure of plates of automobile stamping parts, it is characterized in that: when described stamping parts (17) is placed, the port of minor face (b) inflection keeps d horizontal range, a length of 5 10mm of d with described punching concave die (8) overhanging end.
The most oblique punching die structure of plates of automobile stamping parts, it is characterized in that: the contact surface of described material returned bar (10) and block (13) is vertical, or with vertically form the face of an angle, if the punching direction of described mould and horizontal direction angle are α, then contact surface and the angle vertically formed are less than α/2.
The most oblique punching die structure of plates of automobile stamping parts, it is characterized in that: the afterbody described material returned bar (10) offers the through hole consistent with material returned bar (10) moving direction, inserting the caging bolt (18) being fixed in punching concave die (8) in through hole, the bolt head of caging bolt (18) limits material returned bar (10) and rearwardly ejects.
The most oblique punching die structure of plates of automobile stamping parts, it is characterized in that: the top of described piercing punch (4) also sets up the side pressure flitch (5) supported by lateral pressing flat spring (3), described side pressure flitch (5) is provided with the punch hole mated with punch.
The most oblique punching die structure of plates of automobile stamping parts, it is characterised in that: the end face that stretches out at described piercing punch (4) and/or material returned bar (10) also configures that bullet ejector pin (6,7).
The most oblique punching die structure of plates of automobile stamping parts, it is characterized in that: described second slide block mechanism (1) also includes the A slide block (1a) moved up and down, be converted to the B slide block (1b) moved horizontally through inclined-plane, and be converted to C slide block (1c) composition of oblique movement through vertical；First slide block mechanism (15) also includes the D slide block (15d) moved up and down, and the E slide block (15e) being converted to move horizontally through inclined-plane is constituted.
8. the hole-punching method of the oblique punching die structure of a plates of automobile stamping parts as claimed in claim 1, it is characterised in that: use the technical program to have four-stage,
First stage: mould is opened, place stamping parts
Upper holding pad is in the open mode of press top dead-centre with upper mold, the punching concave die (8) being arranged on the first slide block mechanism (15) and the piercing punch (4) being arranged on the second slide block mechanism (1) are separated from each other, block (13) is in material returned bar (10) and contacts or contactless state, and material returned bar (10) is made the end of material returned bar (10) be in the vestibule of punching concave die (8) by back-moving spring (9) and position-limiting unit；The bending edges (c) of stamping parts (17) and minor face (b) are downward, and long limit (a) is shelved on the upper surface of the first slide block mechanism (15)；
Second stage: mould closes, punching
Upper mold and upper holding pad move downward, punching concave die (8) on first slide block mechanism (15) and be arranged on the piercing punch (4) of the second slide block mechanism (1) and move towards, piercing punch (4) diagonally upper guide plate (2) direction is moved, the long limit (a) of stamping parts (17) is positioned at the cavity between upper mold and the first slide block mechanism (15) upper surface, punching concave die (8) props up bending edges (c) inwall of stamping parts (17), the minor face (b) of stamping parts (17) is held between the cutting edge of punching concave die (8) and piercing punch (4), upper mold and upper holding pad continue to move downward, piercing punch (4) punching, punched scrap (19) is contained in punching concave die (8) vestibule；
Phase III: punching terminates, open mould
Upper mold drives upper holding pad to move upwardly together, upper holding pad disengages stamping parts (17), punching concave die (8) on first slide block mechanism (15) and be arranged on the piercing punch (4) of the second slide block mechanism (1) and be separated from each other, piercing punch (4) leaves stamping parts (17), material returned bar (10) the just contact blocks (13) in punching concave die (8)；
Fourth stage: eject waste material, takes out stamping parts
Punching concave die (8) continues to retreat, material returned bar (10) compressing block (13) in punching concave die (8), pressed home spring (9), the end of material returned bar (10) is displaced outwardly, punched scrap (19) is ejected punching concave die (8) vestibule, fall on the waste sliding plate of lower section or in reject chute, take out stamping parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510418918.2A CN104959460B (en) | 2015-07-16 | 2015-07-16 | Slant punching die structure and punching method for automobile metal plate punch piece |
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| CN201510418918.2A CN104959460B (en) | 2015-07-16 | 2015-07-16 | Slant punching die structure and punching method for automobile metal plate punch piece |
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| CN104959460B true CN104959460B (en) | 2017-01-11 |
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| CN106734558B (en) * | 2017-01-25 | 2018-08-17 | 一汽-大众汽车有限公司 | A kind of punching die |
| FR3076477B1 (en) * | 2018-01-08 | 2019-11-29 | Psa Automobiles Sa | PUNCHING TOOL WITH PUNCH FALL EJECTION LEVER |
| CN109079026B (en) * | 2018-09-21 | 2020-09-11 | 重庆金康新能源汽车设计院有限公司 | Punching mechanism |
| CN112517792A (en) * | 2020-11-25 | 2021-03-19 | 奇瑞汽车股份有限公司 | Punching device and method for vehicle body sheet metal part |
| CN116511347B (en) * | 2023-07-03 | 2023-09-12 | 北京航天光华电子技术有限公司 | Online continuous punching device in cold roll forming |
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| DE69018082T2 (en) * | 1990-11-09 | 1995-09-28 | Umix Co Ltd | Die with guide carriage. |
| CN101406919B (en) * | 2008-11-21 | 2011-01-19 | 四川成飞集成科技股份有限公司 | Multilevel composite floating type wedge mechanism |
| CN201711424U (en) * | 2010-02-03 | 2011-01-19 | 浙江黄岩冲模厂 | Hoisting wedge with drive block and sliding block both mounted on top |
| CN201644669U (en) * | 2010-04-26 | 2010-11-24 | 亿森（上海）模具有限公司 | Stripping structure for movable tapered wedge of non-vertical upward hole flanging and edge flanging female die |
| CN202174154U (en) * | 2011-08-22 | 2012-03-28 | 福臻（马鞍山）科技发展有限公司 | Side pouching die |
| CN102641944B (en) * | 2012-04-25 | 2014-12-24 | 奇瑞汽车股份有限公司 | Punching device for lateral punched hole of manufactured piece |
| CN102909273B (en) * | 2012-10-23 | 2015-10-21 | 上汽通用五菱汽车股份有限公司 | A kind of Multilayer inclined wedge formula mould for punching press shaped negative angle structures |
| CN204817667U (en) * | 2015-07-16 | 2015-12-02 | 上海大众汽车有限公司 | Slant cut -out press structure of car panel beating stamping workpiece |
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