CN220008062U - High-precision composite punching device for energy-absorbing box production line - Google Patents
High-precision composite punching device for energy-absorbing box production line Download PDFInfo
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- CN220008062U CN220008062U CN202321711460.6U CN202321711460U CN220008062U CN 220008062 U CN220008062 U CN 220008062U CN 202321711460 U CN202321711460 U CN 202321711460U CN 220008062 U CN220008062 U CN 220008062U
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- absorbing box
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- 238000004080 punching Methods 0.000 title claims abstract description 79
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000010009 beating Methods 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 238000013329 compounding Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model belongs to the technical field of cold stamping, and relates to a high-precision composite punching device for an energy-absorbing box production line. Including last mould, last mechanism of punching a hole, side punching mechanism, core mechanism and lower mould, go up the mechanism of punching a hole and include last terrace die and connecting piece, go up the terrace die and pass through the connecting piece to be fixed go up the mould bottom side, core mechanism fixes the lower mould top, side punching mechanism includes side punching assembly, goes up slide wedge and lower slide wedge, and side punching assembly connects down slide wedge left side, side punching assembly and lower slide wedge set up on the lower mould, go up the slide wedge and fix go up on the mould and be located go up the right side of mechanism of punching a hole, go up the slide wedge with the inclined plane cooperation of lower slide wedge goes up the slide wedge down and removes the inclined plane that can extrude lower slide wedge down to make lower slide wedge remove to the left. The top side hole one-order compounding and high-precision punching are realized, meanwhile, the energy-absorbing box is automatically assisted in material returning and discharging, the working procedures are reduced, and the working efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of cold stamping, and relates to a high-precision composite punching device for an energy-absorbing box production line.
Background
Along with the rapid development of automobile technology, light weight and collision safety are important indexes of the whole automobile optimization design, and more aluminum alloy materials are applied to whole automobile structural members. The proportion of the aluminum alloy material anti-collision beam system applied to the whole car as a main light-weight means is continuously increased. The beam main body and the energy-absorbing box are main structural members for ensuring the safety of the whole vehicle through collision energy absorption, and particularly the energy-absorbing box deforms and absorbs energy when collision occurs so as to reduce the impact force of collision on passengers and protect the safety of the passengers. The energy-absorbing box plays a key role in collision, the cross section structure is optimized from a shape of a Chinese character 'kou' to a shape of a Chinese character 'ri' and a shape of a Chinese character 'mu', and the cross section structure tends to be complex; meanwhile, more characteristic holes are densely distributed on the energy absorption box and are used for being connected with other parts, so that the reliability of the connection with other parts is directly affected by the relative position accuracy of the energy absorption box, and the safety performance of the whole vehicle is further affected.
The crash box features Kong Daduo are distributed to four sides of the outer contour and these feature holes include locating detection reference holes and other feature holes. Aiming at the cross section of the Chinese character 'ri' -shaped energy-absorbing box, the prior energy-absorbing box processing technology adopts the steps of firstly punching and cutting holes on a positioning reference surface, then positioning the holes by the reference holes, and punching holes on other surfaces in sequence step by step due to the small space of the inner cavity of a product piece and the smooth factor of discharging punching waste. The method has the following defects: the reference hole and the locating pin have a gap, and the fluctuation of the degrees of different surface holes is inevitably caused. Meanwhile, the outer contour part is collapsed after the upper sequence punching or rib cutting, so that the position degree of the positioning datum plane and the datum hole is changed, and the tolerance accumulation is caused by the four sequence punching due to the reasons, so that the relative position degree of the holes is out of tolerance. The process is more and the processing efficiency is low due to the sequential punching. After the energy-absorbing box is punched, the punching part is deformed, so that the friction force between the core and the inner wall is increased; and part of burrs on the inner wall after punching are embedded into the cutting edge of the female die. The above factors cause the difficulty in discharging and discharging the product pieces.
Disclosure of Invention
The utility model provides a high-precision composite punching device for an energy-absorbing box production line, which aims at the processing procedures of Chinese character 'ri' -shaped and Chinese character 'mu' -shaped energy-absorbing box products, realizes one-order composite and high-precision punching of holes on the side part of the top, simultaneously reduces procedures and improves working efficiency by automatically assisting material returning and discharging of the energy-absorbing box.
The utility model solves the technical problems through the following technical proposal,
the utility model provides a compound punching device of energy-absorbing box production line high accuracy, includes mould, last mechanism of punching a hole, side punching mechanism, core mechanism and lower mould, go up the mechanism of punching a hole and include punch a hole and connecting piece, go up the punch a hole and pass through the connecting piece to be fixed go up the mould bottom side, core mechanism fixes the lower mould top, side punching mechanism includes side punching subassembly, goes up slide wedge and lower slide wedge, and side punching subassembly connects lower slide wedge left side, side punching subassembly and lower slide wedge set up on the lower mould, go up the slide wedge and fix go up the mould and lie in go up the right side of punching a hole mechanism, go up the slide wedge with the inclined plane cooperation of slide wedge down, go up the slide wedge down and remove the inclined plane of extrudeed slide wedge down to make slide wedge left.
Above-mentioned energy-absorbing box production line high accuracy composite punching device, side punching subassembly includes side terrace die, fixed block, guide way and canceling release mechanical system, and the guide way is fixed on the lower mould, the bottom card of fixed block is in the guide way, canceling release mechanical system sets up the left side of guide way to connect the bottom and the guide way of fixed block, side terrace die and lower slide wedge set up respectively in the both sides of fixed block, side terrace die is towards core mechanism. The reset mechanism comprises a reset spring assembly and a pull rod, a mounting hole is formed in the left end side wall of the guide groove, one end of the pull rod is connected with the mounting hole through the reset spring assembly, the other end of the pull rod is fixedly connected with a fixed block, and the fixed block moves back and forth in the guide groove.
Above-mentioned compound punching device of energy-absorbing box production line high accuracy, core mechanism includes core centre form, supporting seat and fixed plate, and the core centre form is equipped with the recess, the recess with the punching press piece cooperation on last terrace die and the side terrace die, the supporting seat is fixed the top of lower mould, the fixed plate bottom is fixed the rear side of supporting seat, the rear side of core centre form with fixed plate fixed connection, the core centre form transversely sets up, the supporting seat supports the energy-absorbing box on the core centre form.
Above-mentioned energy-absorbing box production line high accuracy composite punching device still is equipped with discharge mechanism, discharge mechanism includes beating material pole, connecting plate and cylinder, be equipped with horizontal beating material hole on the fixed plate, beat the material hole and be located the both sides of core centre form, beating material pole passes beat the material hole and reach the core centre form outside, the other end of beating material pole is connected with the connecting plate, and the piston rod of cylinder drives connecting plate reciprocating motion.
According to the high-precision composite punching device for the energy-absorbing box production line, the core internal mold comprises a plurality of layers of modules, and the modules at the bottom layer outwards extend to form guide blocks.
The high-precision composite punching device of the energy-absorbing box production line comprises an upper punch and a connecting piece, wherein the upper punch is fixed on the upper die through the connecting piece; the side of fixed block is equipped with the self-lubricating piece, the contact surface of going up slide wedge and lower slide wedge all is equipped with the self-lubricating piece.
Compared with the prior art, the method solves the problem of low process punching precision of the top and side holes of the energy-absorbing box, realizes simultaneous punching of the top and side holes, avoids accumulated errors caused by multi-process punching, and improves the processing efficiency and precision. The utility model adopts a multi-layer core matching structure, and the core has the functions of a female die and inner cavity shape supporting and waste material guiding. Novel and compact structure and multiple composite functions. The auxiliary discharging mechanism is arranged, so that the problem of difficulty in discharging the product piece is solved.
The downward blanking force is converted into the transverse force through the inclined wedges, so that multi-face simultaneous punching is realized, the upper inclined wedges and the lower inclined wedges are provided with the lubricating sheets, the self-lubricating function can be realized, the side punching Kong Guocheng is smooth, and the resistance is small. The multi-layer core internal mold is designed into a step form, the module at the lowest layer is longer than the upper two layers of cores, the feeding guiding function is achieved during feeding, and the feeding operation is simple and reliable.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model (with the upper die removed);
fig. 2 is a schematic view of the front side of the present utility model (at the time of mold closing);
FIG. 3 is a schematic view of the side punching mechanism of the present utility model;
FIG. 4 is a schematic view of the structure of the discharge mechanism of the present utility model;
FIG. 5 is a schematic view of the core internal mold of the present utility model;
the reference symbols in the drawings indicate: 1. the die comprises an upper die, a lower die, an upper male die, a connecting piece, an upper wedge, a lower wedge, a side male die, a fixing block, a guide groove, a return spring assembly, a pull rod, a material beating rod, a connecting plate, a cylinder, a core internal die, a supporting seat, a fixing plate and a guide block.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples serve to illustrate the utility model.
As shown in fig. 1 to 5, the utility model comprises an upper die 1, an upper punching mechanism, a side punching mechanism, a core mechanism and a lower die 2, wherein the upper punching mechanism comprises an upper male die 3 and a connecting piece 4, the upper male die 3 is fixed on the bottom side of the upper die 1 through the connecting piece 4, the core mechanism is fixed on the top of the lower die 2, the side punching mechanism comprises a side punching assembly, an upper wedge 5 and a lower wedge 6, the side punching assembly is connected on the left side of the lower wedge 6, the side punching assembly and the lower wedge 6 are arranged on the lower die 2, the upper wedge 5 is fixed on the upper die 1 and positioned on the right side of the upper punching mechanism, the upper wedge 5 is matched with the inclined surface of the lower wedge 6, and the upper wedge 5 moves downwards to squeeze the inclined surface of the lower wedge 6 and enables the lower wedge 6 to move leftwards. Through the punching of the upper die 1 and the lower die 2, the upper wedge 5 can extrude the lower wedge 6, so that the side punching assembly is driven to punch a hole leftwards, the upper punching mechanism punches the upper side of the energy-absorbing box and simultaneously punches the lower side of the energy-absorbing box, and the working procedure is saved.
Referring to fig. 3, the side punching assembly comprises a side punch 7, a fixing block 8, a guide groove 9 and a reset mechanism, the guide groove 9 is fixed on the lower die 2, the bottom of the fixing block 8 is clamped in the guide groove 9, the reset mechanism is arranged on the left side of the guide groove 9 and is connected with the bottom of the fixing block 8 and the guide groove 9, the side punch 7 and the lower wedge 6 are respectively arranged on two sides of the fixing block 8, and the side punch 7 faces towards the core mechanism. When the lower wedge 6 moves leftwards, the side male die 7 can be pushed to punch the energy-absorbing box on the core mechanism.
Further, the upper wedge 5 is lifted upwards during die sinking, in order that the lower wedge 6 can return to the right side after die sinking, the side male die 7 is withdrawn from the energy-absorbing box, a reset mechanism is arranged, the reset mechanism comprises a reset spring assembly 10 and a pull rod 11, the left end side wall of the guide groove 9 is provided with a mounting hole, one end of the pull rod 11 is connected with the mounting hole through the reset spring assembly 10, the other end of the pull rod 11 is fixedly connected with a fixed block 8, and the fixed block 8 moves back and forth in the guide groove 9. When the die is assembled, the lower wedge 6 pushes the fixed block 8 to move leftwards in the guide groove 9, the side male die 7 punches the energy-absorbing box leftwards, meanwhile, the pull rod 11 of the reset mechanism moves leftwards, and the reset spring assembly 10 deforms; when the die is opened, the return spring assembly 10 is restored, so that the pull rod 11 is pulled rightward, the fixed block 8 is pulled rightward to the left side of the guide groove 9, and the side male die 7 is withdrawn from the energy absorption box. The upper punching mechanism comprises an upper male die 3 and a connecting piece 4, and the upper male die 3 is fixed on the upper die 1 through the connecting piece 4; for the lubrication of being convenient for, reduce wearing and tearing, the side of fixed block 8 is equipped with the self-lubricating piece, the contact surface of upper slide wedge 5 and lower slide wedge 6 all is equipped with the self-lubricating piece.
Referring to fig. 5, in order to support the inside of the energy-absorbing box when punching a hole, a core mechanism is provided, the core mechanism comprises a core inner mold 15, a supporting seat 16 and a fixing plate 17, the core inner mold 15 is provided with a groove, the groove is matched with the punching blocks on the upper punch 3 and the side punches, the supporting seat 16 is fixed at the top of the lower die 2, the bottom of the fixing plate 17 is fixed at the rear side of the supporting seat 16, the rear side of the core inner mold 15 is fixedly connected with the fixing plate 17, the core inner mold 15 is transversely arranged, and the supporting seat 16 supports the energy-absorbing box on the core inner mold 15 when punching a hole. The core internal mold 15 of the eye-shaped energy-absorbing box is provided with three blocks, and in order to facilitate the insertion of the energy-absorbing box into the core, the modules at the bottom layer extend outwards to form guide blocks 18. So that the energy absorption box shaped like a Chinese character 'mu' is inserted into the core. When the energy-absorbing box is used for loading, the bottom layer module firstly enters the bottom cavity of the energy-absorbing box, the function of pre-positioning and guiding can be achieved for the loading, and then the modules of the upper layer and the middle layer can be smoothly inserted when entering the energy-absorbing box, so that the loading efficiency is improved.
After punching, deformation exists between the energy-absorbing box and the die hole of the core internal die 15, and the energy-absorbing box is possibly inconvenient to pull out, so that a discharging mechanism is further arranged, and the discharging mechanism comprises a material beating rod 12, a connecting plate 13 and a cylinder 14, wherein transverse material beating holes are formed in the fixing plate 17 and are positioned on two sides of the core internal die 15, the material beating rod 12 penetrates through the material beating holes to the outer side of the core internal die 15, the other end of the material beating rod 12 is connected with the connecting plate 13, the material beating plate drives the two material beating rods 12 to act, the consistency of the action is improved, and a piston rod of the cylinder 14 drives the connecting plate 13 to reciprocate.
After the energy-absorbing box is mounted, the outer side wall of the energy-absorbing box abuts against the fixing plate 17, the material beating holes are aligned with the outer walls of the two sides of the energy-absorbing box, the air cylinder 14 pushes the material beating rod 12 to extend out of the material beating holes, and the material beating rod 12 abuts against the outer side wall of the energy-absorbing box, so that the energy-absorbing box is pushed away from the core inner die 15, the purpose of unloading is achieved, and unloading is facilitated.
When the die is in operation, the upper die 1 and the lower die 2 are arranged on a press, after a workpiece is arranged, the press drives the upper die 1 and the lower die 2 to be assembled, the upper male die 3 presses towards the upper side of the energy-absorbing box to punch, meanwhile, the upper wedge 5 and the lower wedge 6 are matched, the side male die 7 is pushed to the side face of the energy-absorbing box to punch, after the die is opened, the upper male die 3 rises along with the upper die 1, the side male die 7 is pulled out by a reset mechanism, and the cylinder 14 pushes the striking rod 12 to discharge the energy-absorbing box from the core inner die 15.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The utility model provides a compound punching device of energy-absorbing box production line high accuracy, its characterized in that includes mould (1), goes up punching mechanism, side punching mechanism, core mechanism and lower mould (2), go up punching mechanism and include punch (3) and connecting piece (4), go up punch (3) and fix through connecting piece (4) go up mould (1) bottom side, core mechanism is fixed lower mould (2) top, side punching mechanism includes side punching component, goes up slide wedge (5) and lower slide wedge (6), and side punching component connects lower slide wedge (6) left side, side punching component and lower slide wedge (6) set up on lower mould (2), go up slide wedge (5) and fix on last mould (1) and be located go up punching mechanism's right side, go up slide wedge (5) with the inclined plane cooperation of lower slide wedge (6), go up slide wedge (5) down and remove the inclined plane of extrudeing slide wedge (6) down to make lower slide wedge (6) left.
2. The high-precision compound punching device of the energy-absorbing box production line according to claim 1, wherein the side punching assembly comprises a side punch (7), a fixed block (8), a guide groove (9) and a reset mechanism, the guide groove (9) is fixed on the lower die (2), the bottom of the fixed block (8) is clamped in the guide groove (9), the reset mechanism is arranged on the left side of the guide groove (9) and is connected with the bottom of the fixed block (8) and the guide groove (9), the side punch (7) and the lower inclined wedge (6) are respectively arranged on two sides of the fixed block (8), and the side punch (7) faces towards the core mechanism;
the reset mechanism comprises a reset spring assembly (10) and a pull rod (11), a mounting hole is formed in the left end side wall of the guide groove (9), one end of the pull rod (11) is connected with the mounting hole through the reset spring assembly (10), the other end of the pull rod (11) is fixedly connected with a fixed block (8), and the fixed block (8) moves back and forth in the guide groove (9).
3. The high-precision composite punching device for the energy-absorbing box production line according to claim 2, wherein the core mechanism comprises a core inner die (15), a supporting seat (16) and a fixing plate (17), the core inner die (15) is provided with a groove, the groove is matched with punching blocks on the upper punch (3) and the side punches, the supporting seat (16) is fixed at the top of the lower die (2), the bottom of the fixing plate (17) is fixed at the rear side of the supporting seat (16), the rear side of the core inner die (15) is fixedly connected with the fixing plate (17), the core inner die (15) is transversely arranged, and the supporting seat (16) supports the energy-absorbing box on the core inner die (15).
4. A high-precision composite punching device for an energy-absorbing box production line according to claim 3, further comprising a discharging mechanism, wherein the discharging mechanism comprises a material beating rod (12) and a cylinder (14), a transverse material beating hole is formed in the fixing plate (17), the material beating rod (12) penetrates through the material beating hole to reach the outer side of the core internal mold (15), and the other end of the material beating rod (12) is connected with a piston rod of the cylinder (14).
5. The high-precision composite punching device for the energy-absorbing box production line according to claim 4, wherein the core internal mold (15) comprises a plurality of layers of modules, and the bottom layer of modules extend outwards to form guide blocks (18).
6. The high-precision compound punching device for the energy-absorbing box production line according to claim 5, wherein the upper punching mechanism comprises an upper male die (3) and a connecting piece (4), and the upper male die (3) is fixed on the upper die (1) through the connecting piece (4); the side of fixed block (8) is equipped with the self-lubricating piece, the contact surface of going up slide wedge (5) and lower slide wedge (6) all is equipped with the self-lubricating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321711460.6U CN220008062U (en) | 2023-07-03 | 2023-07-03 | High-precision composite punching device for energy-absorbing box production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321711460.6U CN220008062U (en) | 2023-07-03 | 2023-07-03 | High-precision composite punching device for energy-absorbing box production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220008062U true CN220008062U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321711460.6U Active CN220008062U (en) | 2023-07-03 | 2023-07-03 | High-precision composite punching device for energy-absorbing box production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220008062U (en) |
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2023
- 2023-07-03 CN CN202321711460.6U patent/CN220008062U/en active Active
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