Raw material stamping and blanking die for vehicle support reinforcing plate

Abstract

The invention discloses a raw material stamping and blanking die for a vehicle bracket reinforcing plate, which is characterized in that the edge with a sharp corner part of a left workpiece is formed at a time by adopting a side blanking lower cutter block, the side edge of a right workpiece is processed by adopting two cutter blocks, namely a side forming lower cutter block and a side excess material punching lower cutter block, and a lead angle processing procedure is inserted in the middle of the side forming lower cutter block and the side excess material punching lower cutter block. On one hand, the blanking precision of the sharp corner part of the left workpiece is guaranteed, meanwhile, blanking deformation of the sharp corner part of the right workpiece is avoided, the precision requirements of a cutter block and stamping are lowered, and on the other hand, the edge of the workpiece is not prone to cracking deformation during follow-up flanging machining; a reverse cutting knife block for upwards punching half of materials at the joint of the wide ends of the left workpiece and the right workpiece is arranged on the fourth machining station. The sixth station is provided with a middle cutting-off lower cutter block which punches the remaining part of the connecting position of the wide ends of the left workpiece and the right workpiece downwards. And the turning parts of the edges of the left workpiece and the right workpiece are bright belts, so that the bending ductility is better, and cracking and burrs are avoided.

Description

Technical Field

[0001] The invention relates to a stamping die, in particular to a raw material stamping and blanking die for a vehicle bracket reinforcement plate. Background Art

[0002] The vehicle bracket reinforcement plate is divided into left and right raw material plates, and its structure is as follows Figure 1 As shown, the workpiece is wide at one end and narrow at the other end, and the workpiece has a sharp corner on one side and two protrusions at the middle and end sides. When the bracket reinforcement plate is divided into left and right parts for blanking processing, in order to improve material utilization, the left and right parts are blanked simultaneously on a plate through continuous stamping. Due to the thickness of the product sheet, when the end connection of the wide end of the left and right parts is stamped, the upper half of the cut section is a smooth strip, while the lower half will form a tear strip due to the punching effect; and after the bracket reinforcement plate is divided into left and right parts for blanking, both sides need to be processed by side flanging, such as Figure 2-3 As shown, this causes partial cracking of the wide end of one of the left and right parts during side flanging during the subsequent production process, resulting in spikes on the flanging surface after the product is flanging, affecting product quality. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a raw material stamping and blanking die for a vehicle bracket reinforcement plate with good product quality and high plate material utilization rate.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a raw material stamping and blanking die for a vehicle bracket reinforcement plate, comprising an upper die base and a lower die base, and the lower die base is provided with six processing stations; a guide hole punching die button is respectively provided at the first processing station corresponding to the edges on both sides of the sheet material; a side blanking lower knife block is arranged at a certain angle to the feeding direction and is used to punch the main sections of the front and rear side edges of two adjacent groups of left and right workpieces, and a waste material notch is provided in the side blanking lower knife block, and both sides of the side blanking lower knife block respectively process the front side edge of the left part of the workpiece and the upper wide end of the rear side edge to the middle convex block, and the upper wide end of the rear side edge of the right part of the workpiece to the apex of the sharp corner and part of the front side edge of the corresponding right part of the workpiece; A side lower chamfering block for chamfering the edges of the left and right workpieces is provided at the position corresponding to the side forming lower knife block; a reverse cutting knife block for punching upward half of the material at the connection between the wide ends of the left and right workpieces is provided on the fourth processing station; a left-side residual material lower knife block for punching the residual material on the outer side of the left part of the workpiece is provided on the fifth station, and a waste material slot is provided in the left-side residual material lower knife block; the fifth station is also provided with a side residual material punching lower knife block for punching the residual material at the outer end of the side sharp corner of the right part of the workpiece, and a waste material slot is provided in the side residual material punching lower knife block; the sixth station is provided with a middle cutting lower knife block for punching downward the remaining part at the connection between the wide ends of the left and right workpieces, and a waste material slot is provided in the middle cutting lower knife block; the sixth station is also provided with a right-side residual material lower knife block for punching the residual material on the outer side of the right part of the workpiece, and a waste slot is provided in the right-side residual material lower knife block;

[0005] A floating press block is provided on the upper die seat through a number of nitrogen springs; a guide hole punching punch is provided on the upper die seat at the first processing station; an upper side blanking knife block matching the lower side blanking knife block is provided on the upper die seat at the second processing station; a side upper chamfer forming block matching the side lower chamfer block is provided on the upper die seat at the third processing station; a reverse cutting forming groove matching the reverse cutting knife block is provided on the floating press block at the fourth processing station; an upper left side residual material knife block matching the lower left side residual material knife block is provided on the upper die seat at the fifth processing station, and a lower side residual material punching knife block is also provided on the upper die seat at the fifth processing station. The upper die block is provided with a side surplus material punching upper knife block that cooperates with the block; the upper die seat is provided with an intermediate cutting upper knife block that cooperates with the intermediate cutting lower knife block at the sixth processing station, and the upper die seat is also provided with a right surplus material upper knife block that cooperates with the right surplus material lower knife block at the sixth processing station; the floating pressing block is provided with a number of avoidance grooves for avoiding the guide hole punching punch, the side blanking upper knife block, the side upper chamfer forming block, the left surplus material upper knife block, the side surplus material punching upper knife block, the intermediate cutting upper knife block, and the right surplus material upper knife block; the lower die seat is provided with a pair of guide pins that cooperate with the guide holes on the workpiece at the second processing station to the fifth processing station.

[0006] As a preferred solution, a blanking guide plate for guiding the workpiece out is provided on the lower die base at the discharge end.

[0007] As a preferred solution, the lower die base is provided with a plurality of inclined waste conveying plates for guiding the waste out.

[0008] As a preferred solution, a plurality of elastic ejector pins are provided on the lower die base.

[0009] As a preferred solution, a feed guide frame is provided on the lower die base at the feed end, and inverted L-shaped guide blocks are respectively provided on both sides of the feed guide frame.

[0010] The beneficial effects of the present invention are:

[0011] In this blanking die, since the edge of the sharp corner of the left part of the workpiece is formed at one time by the side blanking lower knife block, and the side of the right part of the workpiece is processed by two knife blocks, the side forming lower knife block and the side residual material punching lower knife block, so that the residual materials on both sides of the raised sharp corner of the right part of the workpiece are cut off in batches, and the chamfering process is inserted in the middle. On the one hand, while ensuring the accuracy of the sharp corner of the left part of the workpiece, the sharp corner of the right part of the workpiece is avoided from blanking deformation, reducing the accuracy requirements of the knife block and stamping, and on the other hand, the edge of the workpiece is not easy to crack and deform during the subsequent flanging process; due to the fourth processing station A reverse cutting knife block is provided on the top for punching upward half of the material at the connection between the wide ends of the left and right workpieces; a middle cutting lower knife block is provided on the sixth station for punching downward the remaining part of the connection between the wide ends of the left and right workpieces; so that the turned-over parts of the edges of the left and right workpieces are all bright bands on the top, with better bending ductility, thereby avoiding the occurrence of cracking and burrs, greatly improving the yield rate while ensuring high utilization of the plate; and this mold makes each group of left and right workpieces cut in a roughly centrally symmetrical manner, and the connecting line of the left and right workpieces in the same group is arranged at a certain angle to the feeding direction, further improving the utilization rate of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the raw material plate of the vehicle bracket reinforcement plate.

[0013] Figure 2 This is a schematic diagram of the raw material plate of the vehicle bracket reinforcement plate after initial bending.

[0014] Figure 3 This is a schematic diagram of the structure of a vehicle bracket reinforcement plate.

[0015] Figure 4 It is a schematic diagram of the lower mold structure.

[0016] Figure 5 Schematic diagram of the upper die structure.

[0017] Figure 6 This is the state diagram of the plate after each processing step.

[0018] In the figure: 1 upper die base, 2 lower die base, 3 guide hole punching die button, 4 floating press block; 5 side blanking lower knife block, 6 side lower chamfer block; 7 reverse cutting knife block; 8 left side residual material lower knife block, 9 side residual material punching lower knife block, 10 middle cutting lower knife block, 11 right side residual material lower knife block, 12 guide hole punching punch; 13 side blanking upper knife block; 14 side upper chamfer forming block; 15 reverse cutting forming groove; 16 left side residual material upper knife block, 17 side residual material punching upper knife block; 18 middle cutting upper knife block, 19 right side residual material upper knife block; 20 blanking guide plate; 21 waste material conveying plate; 22 elastic ejector pin, 23 feed guide frame, 24 guide block, 25 guide pin. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 4-6 As shown, a raw material stamping and blanking die for a vehicle bracket reinforcement plate comprises an upper die base 1 and a lower die base 2, and the lower die base 2 is provided with six processing stations; a guide hole punching die button 3 is respectively provided at the first processing station corresponding to the edges on both sides of the sheet material, and a side blanking lower knife block 5 is arranged at a certain angle to the feeding direction for punching the main sections of the front and rear side edges of two adjacent groups of left and right workpieces, and a waste material notch is provided in the side blanking lower knife block 5. The sides of the side blanking lower knife block 5 respectively process the front side edge of the left workpiece and the upper wide end of the rear side edge to the middle convex block, and the upper wide end of the rear side edge of the right workpiece to the apex of the sharp corner, and the corresponding part of the front side edge of the right workpiece; at the third processing station, at the position corresponding to the side forming lower knife block A side lower chamfer block 6 is provided for chamfering the edges of the left and right workpieces; a reverse cutting knife block 7 is provided on the fourth processing station for punching upward half of the material at the connection between the wide ends of the left and right workpieces; a left side residual material lower knife block 8 is provided on the fifth station for punching the residual material on the outer side of the left part of the workpiece, and a waste material slot is provided in the left side residual material lower knife block 8; the fifth station is also provided with a side residual material punching lower knife block 9 for punching the residual material at the outer end of the side sharp corner of the right part of the workpiece, and a waste material slot is provided in the side residual material punching lower knife block 9; the sixth station is provided with an intermediate cutting lower knife block 10 for punching downward the remaining part at the connection between the wide ends of the left and right workpieces, and a waste material slot is provided in the intermediate cutting lower knife block 10; the sixth station is also provided with a right side residual material lower knife block 11 for punching the residual material on the outer side of the right part of the workpiece, and a waste slot is provided in the right side residual material lower knife block 11;

[0021] The lower die base 2 is provided with a plurality of elastic ejector pins 22. The lower die base 2 is provided with a feed guide frame 23 at the feed end, and an inverted L-shaped guide block 24 is provided on both sides of the feed guide frame 23. The lower die base 2 is provided with a blanking guide plate 20 for guiding the workpiece out at the discharge end. The lower die base 2 is provided with a plurality of inclined waste conveying plates 21 for guiding the waste out.

[0022] The upper die base 1 is provided with a floating press block 4 through a plurality of nitrogen springs; the upper die base 1 is provided with a guide hole punching punch 12 at the first processing station; the upper die base 1 is provided with a side blanking upper knife block 13 that matches the side blanking lower knife block 5 at the second processing station; the upper die base 1 is provided with a side upper chamfer forming block 14 that matches the side lower chamfer block 6 at the third processing station; the floating press block 4 is provided with a reverse cutting forming groove 15 that matches the reverse cutting knife block 7 at the fourth processing station; the upper die base 1 is provided with a left side residual material upper knife block 16 that matches the left side residual material lower knife block 8 at the fifth processing station, and the upper die base 1 is also provided with a side residual material punching lower knife block 9 that matches at the fifth processing station. The upper cutter block 17 for punching the side excess material; the upper die base 1 is provided with an intermediate cutting upper cutter block 18 which matches the intermediate cutting lower cutter block 10 at the sixth processing station, and the upper die base 1 is also provided with a right excess material upper cutter block 19 which matches the right excess material lower cutter block 11 at the sixth processing station; the floating pressing block 4 is provided with a plurality of avoidance grooves for avoiding the guide hole punching punch 12, the side blanking upper cutter block 13, the side upper chamfer forming block 14, the left excess material upper cutter block 16, the side excess material punching upper cutter block 17, the intermediate cutting upper cutter block 18, and the right excess material upper cutter block 19; the lower die base 2 is provided with a pair of guide pins 25 which match the guide holes on the workpiece at the second processing station to the fifth processing station.

[0023] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A raw material stamping die for a vehicle bracket reinforcement plate, comprising an upper die seat and a lower die seat, characterized in that: The lower die seat is provided with six processing stations; the first processing station is provided with a guide hole punching die button corresponding to the edges of both sides of the sheet material; the second processing station is provided with side blanking lower knife blocks arranged at a certain angle to the feeding direction for punching the main sections of the front and rear side edges of two adjacent groups of left and right workpieces, and the side blanking lower knife blocks are provided with waste material slots, and the sides of the side blanking lower knife blocks respectively process the front side edge of the left part of the workpiece and the upper wide end of the rear side edge to the middle convex block, and the upper wide end of the rear side edge of the right part of the workpiece to the apex of the sharp corner and part of the front side edge of the corresponding right part of the workpiece; the third processing station is provided with a punching die button for the left and right workpiece edges at the position corresponding to the side forming lower knife block. The side lower chamfer block for chamfering is provided on the fourth processing station for punching half of the material at the connection between the wide ends of the left and right workpieces upward; the fifth station is provided with a left-side residual material lower knife block for punching the residual material on the outer side of the left workpiece, and a waste material slot is provided in the left-side residual material lower knife block; the fifth station is also provided with a side residual material punching lower knife block for punching the residual material at the outer end of the side sharp corner of the right workpiece, and a waste material slot is provided in the side residual material punching lower knife block; the sixth station is provided with a middle cutting lower knife block for punching the remaining part of the connection between the wide ends of the left and right workpieces downward, and a waste material slot is provided in the middle cutting lower knife block; the sixth station is also provided with a right-side residual material lower knife block for punching the residual material on the outer side of the right workpiece, and a waste slot is provided in the right-side residual material lower knife block; A floating press block is provided on the upper die seat through a number of nitrogen springs; a guide hole punching punch is provided on the upper die seat at the first processing station; an upper side blanking knife block matching the lower side blanking knife block is provided on the upper die seat at the second processing station; a side upper chamfer forming block matching the side lower chamfer block is provided on the upper die seat at the third processing station; a reverse cutting forming groove matching the reverse cutting knife block is provided on the floating press block at the fourth processing station; an upper left side residual material knife block matching the lower left side residual material knife block is provided on the upper die seat at the fifth processing station, and a lower side residual material punching knife block is also provided on the upper die seat at the fifth processing station. The upper die block is provided with a side surplus material punching upper knife block that cooperates with the block; the upper die seat is provided with an intermediate cutting upper knife block that cooperates with the intermediate cutting lower knife block at the sixth processing station, and the upper die seat is also provided with a right surplus material upper knife block that cooperates with the right surplus material lower knife block at the sixth processing station; the floating pressing block is provided with a number of avoidance grooves for avoiding the guide hole punching punch, the side blanking upper knife block, the side upper chamfer forming block, the left surplus material upper knife block, the side surplus material punching upper knife block, the intermediate cutting upper knife block, and the right surplus material upper knife block; the lower die seat is provided with a pair of guide pins that cooperate with the guide holes on the workpiece at the second processing station to the fifth processing station.

2. The raw material stamping die for the vehicle bracket reinforcement plate according to claim 1, characterized in that: The lower die base is provided with a blanking guide plate at the discharge end for guiding the workpiece out.

3. The raw material stamping die for the vehicle bracket reinforcement plate according to claim 1, characterized in that: The lower die base is provided with a plurality of obliquely arranged waste conveying plates for guiding the waste out.

4. The raw material stamping die for the vehicle bracket reinforcement plate according to claim 1, characterized in that: A plurality of elastic ejector pins are arranged on the lower die seat.

5. A blanking die for stamping a raw material of a vehicle bracket reinforcement plate according to any one of claims 1 to 4, characterized in that: A feed guide frame is provided on the lower die base at the feed end, and inverted L-shaped guide blocks are respectively provided on both sides of the feed guide frame.

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