CN109158484B

CN109158484B - Car body cross beam processing equipment

Info

Publication number: CN109158484B
Application number: CN201811066770.0A
Authority: CN
Inventors: 黄昭明; 王利; 王仕雄; 胡李勇; 陈华
Original assignee: Wanjiang Institute of Technology
Current assignee: Wanjiang Institute of Technology
Priority date: 2018-09-13
Filing date: 2018-09-13
Publication date: 2024-04-05
Anticipated expiration: 2038-09-13
Also published as: CN109158484A

Abstract

The invention discloses a car body cross beam machining device, which comprises a blanking die, a first transfer die, a second transfer die and a third transfer die; the blanking die is correspondingly provided with a first blanking station; the first transfer die is correspondingly provided with four stations, namely a second drawing station, a third trimming and punching station, a fourth flanging station and a fifth punching and trimming station according to the processing sequence; the second transfer die is correspondingly provided with four stations, namely a sixth flanging station, a seventh forming and flanging station, an eighth flanging station and a ninth flanging station according to the processing sequence; the third transfer die is correspondingly provided with three stations, namely a tenth flanging station, an eleventh flanging station and a twelfth punching and shaping station according to the processing sequence. The car body cross beam processing equipment is easy to realize high-speed automatic stamping production, and has stable quality of stamped parts, and the production efficiency is greatly improved.

Description

Car body cross beam processing equipment

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a car body cross beam machining device.

Background

In order to improve productivity and reduce cost, many covering parts on automobiles are manufactured by a progressive stamping method, and few progressive stamping reports are made on an open-mouth high-complexity automobile body sheet metal part, and a car body cross beam belongs to the open-mouth high-complexity automobile body sheet metal part. The implementation of the progressive stamping processing difficulty of the open-mouth high-complexity sheet metal part of the vehicle body is mainly reflected in the aspects of station planning, the deflection and positioning of the work pieces of each station, the arrangement and design of nonstandard inclined wedges and the like.

At present, most of opening-shaped high-complexity sheet metal parts of a vehicle body are punched by using a single-process die, so that the punching precision and quality can be ensured, but a large number of matched machine tools are required, and the production efficiency is low. The multi-station transfer die stamping processing of the open-mouth high-complexity automobile body sheet metal part is implemented by matching with the mechanical arm, so that the high-speed automatic stamping production of the open-mouth high-complexity automobile body sheet metal part can be realized, the quality of the stamped part is stable, the production efficiency is greatly improved, and the implementation difficulty of the technology is high. In order to solve the technical problems, it is very important to provide a design scheme of a multi-station transfer die for a car body cross beam.

The patent document with publication number of CN103331371A discloses an oil pan stamping die and a mounting structure, and the technical scheme selected by the patent document relates to an oil pan stamping die and a mounting structure, wherein the stamping die is used by matching structures such as an upper die holder, a lower die holder, a pressing core and the like, and stamping of parts with complex shapes is completed by means of a universal die, so that the stamping effect on the oil pan with simple shapes and various automobile parts is good. However, the mold is a compound mold, and can only produce the oil pan with a simpler shape, and has low production efficiency on the oil pan with a complex shape, so the practicability is low.

As another example, patent document with publication number CN105537393a discloses a multi-station transfer die for an engine oil pan, and the selected technical scheme relates to a set of 9-station transfer die for an engine oil pan designed by using a transfer method, wherein the die is a deep drawing die with simple punching and flanging, and the design of the transfer die for an open-mouth high-complexity sheet metal part of a vehicle body is not very reference.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a car body cross beam processing device, and aims to improve production efficiency.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the processing equipment for the car body cross beam comprises a blanking die, a first transfer die, a second transfer die and a third transfer die which are sequentially arranged according to the processing sequence;

the blanking die comprises a blanking upper die assembly and a blanking lower die assembly, and the blanking upper die assembly and the blanking lower die assembly are correspondingly provided with a first blanking station;

the first transfer die comprises a first upper die assembly and a first lower die assembly, wherein the first upper die assembly and the first lower die assembly are correspondingly provided with four stations, namely a second drawing station, a third trimming and punching station, a fourth flanging station and a fifth punching and trimming station according to the processing sequence;

The second transfer die comprises a second upper die assembly and a second lower die assembly, and the second upper die assembly and the second lower die assembly are correspondingly provided with four stations, namely a sixth flanging station, a seventh forming and flanging station, an eighth flanging station and a ninth flanging station according to the processing sequence;

the third transfer die comprises a third upper die assembly and a third lower die assembly, and the third upper die assembly and the third lower die assembly are correspondingly provided with three stations, namely a tenth flanging station, an eleventh flanging station and a twelfth punching and shaping station according to the processing sequence.

Corresponding first blanking station department, blanking upper die subassembly includes first cope match-plate pattern and sets up in first punch, second punch, third punch, fourth punch, first stripper, second stripper and inlay on first cope match-plate pattern, first punch, second punch and third punch are located the same side of fourth punch, first punch, second punch and third punch pass first stripper, fourth punch pass second stripper, blanking lower die subassembly includes first lower bolster, first fixed plate with first punch matched with, second fixed plate with second punch matched with, third fixed plate with third punch matched with, first die with fourth punch matched with second die, first fixed plate, second fixed plate, third fixed plate, first die and second die set up on first lower bolster, first fixed plate, second fixed plate and third fixed plate are located the below of first stripper, first die and second die are located the below of second die.

Corresponding to the second drawing station, the first upper die assembly comprises a second upper die plate and two forming blocks arranged on the second upper die plate, and the first lower die assembly comprises a second lower die plate, a stripper plate and a fixed seat which are arranged on the second lower die plate, an inner forming block which is arranged on the fixed seat and matched with the two forming blocks of the first upper die assembly, and two outer forming blocks which are arranged on the stripper plate and matched with the two forming blocks of the first upper die assembly, wherein the inner forming block is positioned between the two outer forming blocks.

Corresponding third deburring and station of punching a hole, first last die assembly includes third cope match-plate pattern, sets up fixed plate, stripper, locating pin and the drift of setting on the third cope match-plate pattern and sets up eight deburring cutting blocks on the fixed plate, first lower die assembly includes third lower bolster and sets up interior die and two outer die on the third lower bolster, and stripper, locating pin and the drift of first last die assembly cooperate with interior die, and eight deburring cutting blocks of first last die assembly cooperate with two outer dies, and interior die is located between two outer dies.

Corresponding to the fourth flanging station, the first upper die assembly comprises a fourth upper die plate, a stripper plate arranged on the fourth upper die plate, two outer forming blocks and an inner forming block arranged on the stripper plate, wherein the inner forming block is positioned between the two outer forming blocks, the first lower die assembly comprises a fourth lower die plate, a forming block arranged on the fourth lower die plate and two positioning pins, and the inner forming block and the two outer forming blocks of the first upper die assembly are matched with the forming blocks.

Corresponding to the fifth punching and trimming station, the first upper die assembly comprises a fifth upper die plate, a stripper plate arranged on the fifth upper die plate and a forming block arranged on the stripper plate, the first lower die assembly comprises a fifth lower die plate and a female die arranged on the fifth lower die plate, the forming block arranged on the stripper plate is matched with the female die arranged on the fifth lower die plate, the first transfer die further comprises a first punching device, a second punching device, a first punching device and a second punching device, the first punching device, the second punching device, the first punching device and the second punching device are connected with the first upper die assembly and the first lower die assembly, the first punching device and the second punching device are in opposite arrangement, the female die arranged on the fifth upper die plate is positioned between the first punching device and the second punching device, and the female die arranged on the fifth upper die is also positioned between the first punching device and the second punching device.

Corresponding to the sixth flanging station, the second upper die assembly comprises a sixth upper die plate and two forming blocks arranged on the sixth upper die plate, and the second lower die assembly comprises a sixth lower die plate, a stripper plate arranged on the sixth lower die plate, forming blocks arranged on the stripper plate and forming blocks arranged on the sixth lower die plate, wherein the two forming blocks of the second upper die assembly are matched with the two forming blocks of the second lower die assembly.

Corresponding to the seventh forming and flanging station, the second upper die assembly comprises a seventh upper die plate, a stripper plate, two punches, a front forming block, two side forming blocks and a pressing plate, wherein the stripper plate is arranged on the seventh upper die plate, the pressing plate is arranged on the stripper plate, the second lower die assembly comprises a seventh lower die plate, the front forming block and a rear forming block are arranged on the seventh lower die plate, the front forming block of the second lower die assembly is positioned below the front forming block of the second upper die assembly and matched with the two front forming blocks, the rear forming block is positioned below the pressing plate and the two side forming blocks and matched with the pressing plate and the two side forming blocks.

Corresponding eighth turn-ups station, the second goes up the die assembly and includes eighth cope match-plate pattern, sets up the stripper on eighth cope match-plate pattern and sets up the pressure flitch on the stripper, the second lower die assembly includes eighth lower bolster and sets up on eighth lower bolster and with pressure flitch matched with shaping piece, the second transfer mould still includes first flanging device and second flanging device, and first flanging device and second flanging device are connected and first flanging device and second flanging device are relative arrangement with second cope match-plate pattern and second lower die assembly, and shaping piece is located between first flanging device and the second flanging device.

Corresponding to the ninth flanging station, the second upper die assembly comprises a ninth upper die plate and a forming block arranged on the ninth upper die plate, and the second lower die assembly comprises a ninth lower die plate, a stripper plate arranged on the ninth lower die plate, a rear forming block arranged on the stripper plate and a front forming block arranged on the ninth lower die plate, wherein the forming block of the second upper die assembly is matched with the rear forming block and the front forming block of the second lower die assembly.

Corresponding to the tenth flanging station, the third upper die assembly comprises a tenth upper die plate, a pressing plate, a rear forming block and two front forming blocks, wherein the pressing plate and the rear forming block are arranged on the tenth upper die plate, the two front forming blocks are arranged on the pressing plate, the third lower die assembly comprises a tenth lower die plate and a forming block arranged on the tenth lower die plate, and the forming block is matched with the rear forming block and the two front forming blocks.

Corresponding to the eleventh flanging station, the third upper die assembly comprises an eleventh upper die plate and a pressing plate arranged on the eleventh upper die plate, the third lower die assembly comprises an eleventh lower die plate and a forming block arranged on the eleventh lower die plate, the third transfer die further comprises a third flanging device, the third flanging device is connected with the third upper die assembly and the third lower die assembly, and the forming block is matched with the third flanging device and the pressing plate.

Corresponding twelfth punching and shaping station, the third upper die assembly comprises a twelfth upper die plate, a stripper plate arranged on the twelfth upper die plate, two forming blocks, a punch head and a window plate arranged on the stripper plate, the third lower die assembly comprises a twelfth lower die plate, a fixing seat arranged on the twelfth lower die plate, two forming blocks and a female die arranged on the fixing seat, the two forming blocks of the third lower die assembly are matched with the two forming blocks of the third upper die assembly, the punch head is matched with the female die, and the fixing seat is positioned between the two forming blocks.

The car body cross beam processing equipment has the following advantages:

1. aiming at the forming of the open side of the high-complexity car body cross beam, firstly punching and cutting the boundary of a material sheet for forming the open side, and then completing the stamping forming work of the open side of the car body cross beam by applying one-time drawing, thereby avoiding the unfavorable situation that the open side of the car body cross beam is complex to arrange by using a plurality of sets of wedge mechanisms for block punching after drawing the rectangular material sheet;

2. the multi-station transfer die stamping processing is easy to realize high-speed automatic stamping production, and the quality of stamped parts is stable, so that the production efficiency is greatly improved;

3. Under the condition of reducing station arrangement as much as possible, the reasonable positioning of the station parts of the multi-station transfer die of the car beam structural part, the reasonable part overturning and the reasonable inclined wedge mechanism arrangement reduce the working difficulty and the die debugging workload of the numerical simulation of the later-stage plate forming, and the stamping processing of the car body beam of the high-complexity car is completed efficiently and accurately.

Drawings

The present specification includes the following drawings, the contents of which are respectively:

FIG. 1 is a schematic view of a cross member of a sedan body;

FIG. 2 is a schematic view of another angle of a cross member of a sedan body;

FIG. 3 is a layout process design;

FIG. 4 is a schematic view of the structure of the blanking die;

FIG. 5 is a schematic view of the structure of the blanking upper die assembly;

FIG. 6 is a top view of the blanking upper die assembly;

FIG. 7 is a schematic view of the structure of the blanking lower die assembly;

FIG. 8 is a top view of the blanking lower die assembly;

fig. 9 is a schematic structural view of a first transfer die;

FIG. 10 is a schematic view of the structure of the first upper die assembly;

FIG. 11 is a schematic view of the structure of the first lower die assembly;

FIG. 12 is a schematic view of a partial structure at a fifth punching and trimming station;

FIG. 13 is a schematic view of the structure of the first punching device;

FIG. 14 is a schematic view of a second punching apparatus;

Fig. 15 is a schematic structural view of the first blanking device;

fig. 16 is a schematic structural view of the second blanking device;

fig. 17 is a schematic structural view of a second transfer die;

FIG. 18 is a schematic view of the structure of the second upper die assembly;

FIG. 19 is a schematic view of the structure of the second lower die assembly;

FIG. 20 is a schematic view of a partial structure at an eighth turn-up station;

fig. 21 is a schematic structural view of a third transfer die;

FIG. 22 is a schematic structural view of a third upper die assembly;

FIG. 23 is a schematic structural view of a third lower die assembly;

FIG. 24 is a schematic view of a partial structure at an eleventh turn-up station;

FIG. 25 is a schematic view of a web formed at a first blanking station;

FIG. 26 is a schematic view of the bottom structure of a sedan body cross member;

marked in the figure as: 1. a blanking upper die assembly; 101. an upper template; 102. a first punch; 103. a second punch; 104. a third punch; 105. A fourth punch; 106. a first stripper plate; 107. a second stripper plate; 108. guiding nails; 109. an insert; 2. a blanking lower die assembly; 201. a lower template; 202. a first fixing plate; 203. a second fixing plate; 204. a third fixing plate; 205. a first female die; 206. a second female die; 207. a guide block; 208. a guiding ruler; 3. cutting off the punch; 4. a mounting plate; 5. a third female die; 6. a window plate; 7. a first upper die assembly; 701. forming a block; 702. forming a block; 703. a fixing plate; 704. trimming the cutter block; 705. trimming the cutter block; 706. trimming the cutter block; 707. trimming the cutter block; 708. Trimming the cutter block; 709. trimming the cutter block; 710. trimming the cutter block; 711. trimming the cutter block; 712. a positioning pin; 713. a punch; 714. a stripper plate; 715. an inner forming block; 716. an outer forming block; 717. a stripper plate; 718. forming a block; 719. a stripper plate; 720. a second upper template; 721. A third upper template; 722. a fourth upper template; 723. a fifth upper template; 8. a first lower die assembly; 801. a stripper plate; 802. a fixing seat; 803. An inner forming block; 804. an outer forming block; 805. an inner female die; 806. an outer female die; 807. forming a block; 808. a positioning pin; 809. a female die; 810. A second lower die plate; 811. a third lower template; 812. a fourth lower die plate; 813. a fifth lower die plate; 9. a second upper die assembly; 901. forming a block; 902. forming a block; 903. a stripper plate; 904. a punch; 905. a front forming block; 906. a side forming block; 907. a pressing plate; 908. a stripper plate; 909. a pressing plate; 910. forming a block; 911. a sixth upper template; 912. a seventh upper template; 913. an eighth upper template; 914. a ninth upper die plate; 10. a second lower die assembly; 1001. a stripper plate; 1002. forming a block; 1003. forming a block; 1004. a front forming block; 1005. a rear forming block; 1006. forming a block; 1007. a stripper plate; 1008. a rear forming block; 1009. a front forming block; 1010. a sixth lower die plate; 1011. A seventh lower die plate; 1012. an eighth lower die plate; 1013. a ninth lower die plate; 11. a third upper die assembly; 1101. a pressing plate; 1102. a rear forming block; 1103. a front forming block; 1104. a pressing plate; 1105. a stripper plate; 1106. forming a block; 1107. a punch; 1108. a tenth upper template; 1109. an eleventh upper template; 1110. a twelfth upper template; 12. a third lower die assembly; 1201. forming a block; 1202. forming a block; 1203. a fixing seat; 1204. forming a block; 1205. a female die; 1207. a tenth lower die plate; 1208. an eleventh lower die plate; 1209. a twelfth lower die plate; 13. a first punching device; 1301. a first punch drive block; 1302. a first punch slide; 1303. a first punching punch; 14. a second punching device; 1401. a second punch drive block; 1402. a second punching slider; 1403. a second punching punch; 15. a first blanking device; 1501. A first blanking drive block; 1502. a first blanking slider; 1503. a first trimming blade block; 16. a second blanking device; 1601. a second blanking driving block; 1602. a second blanking slider; 1603. a second trimming blade block; 17. a first flange driving block; 18. a first flanging slide; 19. a first flanging punch; 20. a second flanging driving block; 21. a second flanging slide; 22. a second flanging punch; 23. a third flanging driving block; 24. a third flanging slide; 25. a flanging male die; 26. a beam main board body; 27. a first side plate; 28. a second side plate; 29. a first side flange; 30. a second side flange; 31. a third side flange; 32. a first end flange; 33. a second end turn-up; 34. a lightening hole; 35. a first upper die holder; 36. A first lower die holder; 37. the second upper die holder; 38. a second lower die holder; 39. a third upper die holder; 40. a third lower die holder; a. a first blanking station; b. a second drawing station; c. a third trimming and punching station; d. a fourth flanging station; e. a fifth punching and trimming station; f. a sixth flanging station; g. a seventh forming and flanging station; h. an eighth flanging station; i. a ninth flanging station; j. a tenth flanging station; k. an eleventh flanging station; l, twelfth punching and shaping station.

Detailed Description

The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.

As shown in fig. 1 to 24, the invention provides a processing device for a cross beam of a car body, which comprises a blanking die, a first transfer die, a second transfer die and a third transfer die which are sequentially arranged according to processing sequence.

The structure of the car body cross beam is shown in fig. 1, 2 and 25, the car body cross beam comprises a cross beam main body, a first side plate connected with one side edge of the cross beam main body, a second side plate connected with the other side edge of the cross beam main body, a first side flanging connected with the first side plate, a second side flanging connected with the second side plate, a third side flanging connected with the second side flanging, a first end flanging connected with one end edge of the cross beam main body and a second end flanging connected with the other end edge of the cross beam main body, the first side plate and the second side plate are oppositely arranged and extend towards the same side of the cross beam main body, the first side plate and the second side plate are parallel, the first side plate and the second side plate extend from one end of the cross beam main body in the length direction to the other end of the cross beam main body in the length direction along the cross beam main body, and an included angle between the first side plate and the second side plate and the cross beam main body is approximately 90 degrees. The first end turn-ups and the one end fixed connection in the length direction of crossbeam mainboard body, the second end turn-ups and the other end fixed connection in the length direction of crossbeam mainboard body, first end turn-ups and second end turn-ups are relative arrangement and first end turn-ups and second end turn-ups stretch out towards the same side of crossbeam mainboard body with first curb plate and second curb plate, the one end fixed connection in the length direction of first end turn-ups and first curb plate, the other end fixed connection in the length direction of second end turn-ups and first curb plate. The first side flanging is oppositely arranged with the beam main board body, the first side flanging is fixedly connected with one side edge of the first side board, the beam main board body is fixedly connected with the other side edge of the first side board, and the first side flanging extends from one end of the first side board in the length direction to the other end of the first side board in the length direction. The second side flanging is fixedly connected with one side edge of the second side plate, the beam main plate body is fixedly connected with the other side edge of the second side plate, and the second side flanging extends from one end of the second side plate in the length direction to the other end of the second side plate in the length direction. The third side flanging is fixedly connected with one side edge of the second side flanging, the second side plate is fixedly connected with the other side edge of the second side flanging, the third side flanging extends from one end of the second side flanging in the length direction to the other end of the second side flanging in the length direction, and the second side flanging and the third side flanging are positioned on the same side of the second side plate. The beam main board body is provided with two lightening holes, the lightening holes are rectangular holes, and the lightening holes are through holes which are formed in the beam main board body in a penetrating manner along the board thickness direction. Two first through holes are formed in the first side plate, the first through holes are round holes, and the first through holes are through holes formed in the first side plate in a penetrating mode in the plate thickness direction. Two second through holes are formed in the second side plate, the second through holes are round holes, and the second through holes are through holes formed in the second side plate in a penetrating mode in the plate thickness direction.

When the car body cross beam is processed, firstly, a blank is processed by a blanking die at a first blanking station to form a material sheet, and then the material sheet is processed by a first transfer die, a second transfer die and a third transfer die in sequence to finally form the car body cross beam. The blanking station is independently provided with a set of blanking die, and the die does not interfere with the work of the subsequent station during grinding, so that the blanking die has the advantages of simple structure, high processing precision and the like, and is beneficial to improving the processing precision and the processing efficiency.

As shown in fig. 3 to 8, the blanking die comprises a blanking upper die assembly 1 and a blanking lower die assembly 2, the blanking upper die assembly 1 can do reciprocating linear motion relative to the blanking lower die assembly 2 in the vertical direction, the stamping action is realized, and the blanking upper die assembly 1 and the blanking lower die assembly 2 are correspondingly provided with a first blanking station. The blanking upper die assembly 1 comprises a first upper die plate 101, a first punch 102, a second punch 103, a third punch 104, a fourth punch 105, a first stripper plate 106, a second stripper plate 107 and an insert 109 which are arranged on the first upper die plate 101, the first punch 102, the second punch 103 and the third punch 104 are positioned on the same side of the fourth punch 105, the first punch 102, the second punch 103 and the third punch 104 pass through the first stripper plate 106, the fourth punch 105 passes through the second stripper plate 107, the blanking lower die assembly 2 comprises a first lower die plate 201, a first fixed plate 202 matched with the first punch 102, a second fixed plate 203 matched with the second punch 103, a third fixed plate 204 matched with the third punch 104, a first female die 205 matched with the fourth punch 105 and a second female die 206 matched with the insert 109, the first fixed plate 202, the second fixed plate 203, the third fixed plate 204, the first female die 205 and the second female die 206 are arranged on the first lower die plate 201, the second fixed plate 203 and the second female die 206 are positioned below the first lower die plate 107 and the second lower die plate 206.

As shown in fig. 4 to 8, the first punch 102, the second punch 103, and the third punch 104 are on the same straight line parallel to the first direction, the first stripper plate 106 and the second stripper plate 107 are on the same straight line parallel to the second direction, the first direction and the second direction are both horizontal directions and the first direction and the second direction are perpendicular, and the blank moves on the blanking die along the second direction during processing. The first punch 102, the second punch 103 and the third punch 104 are all round punches, the first punch 102, the second punch 103 and the third punch 104 are vertically arranged on the first upper die plate 101, the upper ends of the first punch 102, the second punch 103 and the third punch 104 are fixedly connected with the first upper die plate 101, the second punch 103 is two, the two second punches 103 are located between the first punch 102 and the third punch 104, and the first punch 102 and the third punch 104 are respectively provided with one. The first punch 102 and the third punch 104 are used for punching a guide hole on a blank respectively, and two guide holes are formed on the blank, and are round holes. The second punches 103 are used for punching the blank, and two circular through holes are punched in the blank by the two second punches 103.

As shown in fig. 4 to 6, the first stripper plate 106 and the second stripper plate 107 are connected to the first upper die plate 101, the first stripper plate 106 and the second stripper plate 107 are rectangular flat plates, the first stripper plate 106 and the second stripper plate 107 are horizontally arranged, the length direction of the first stripper plate 106 is parallel to the length direction of the first stripper plate 106, the width direction of the first stripper plate 106 is parallel to the width direction of the second stripper plate 107, the first stripper plate 106 and the second stripper plate 107 are located below the first upper die plate 101, the first stripper plate 106 and the second stripper plate 107 are located at the same height, and the first stripper plate 106 and the second stripper plate 107 are parallel to the first upper die plate 101. The first stripper plate 106 has four through holes for passing the first punch 102, the two second punches 103 and the third punch 104, respectively. The fourth punch 105 is a special-shaped punch, the shape of the fourth punch 105 is matched with the shape of the tablet, the fourth punch 105 is fixedly connected with the first upper die plate 101, the second stripper plate 107 is sleeved on the fourth punch 105, the second stripper plate 107 is provided with an avoidance hole for the fourth punch 105 to pass through, the avoidance hole is a through hole which is formed in the second stripper plate 107 in a penetrating mode along the thickness direction, the shape of the avoidance hole is matched with the shape of the fourth punch 105, the fourth punch 105 is matched with the first female die 205, the blank is punched, the tablet with the shape meeting the requirement is obtained, and the shape of the tablet is shown in fig. 25.

As shown in fig. 4, 7 and 8, the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 are fixedly disposed on the top surface of the first lower die plate 201, and the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 are sequentially disposed along the first direction, and the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 are used for being matched with the first unloading plate 106 to clamp the blank to be punched. The first fixing plate 202 has a circular hole through which the first punch 102 is inserted, the circular hole being a through hole penetrating the first fixing plate 202 in the vertical direction. The second fixing plate 203 has two circular holes into which the second punches 103 are inserted, which are through holes provided in the second fixing plate 203 so as to penetrate in the vertical direction. The third fixing plate 204 has a circular hole through which the third punch 104 is inserted, the circular hole being a through hole penetrating the third fixing plate 204 in the vertical direction. The first lower die plate 201 has blanking holes which are communicated with the round holes on the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 and used for allowing waste materials generated by punching to pass through, and the blanking holes are through holes which are arranged on the first lower die plate 201 in a penetrating manner along the vertical direction. The first female die 205 is fixedly arranged on the top surface of the first lower die plate 201, the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 are positioned on the same side of the first female die 205, and the first female die 205 is used for being matched with the second discharging plate 107 to clamp blanks to be blanked. The first die 205 is used for being matched with the fourth punch 105 to realize blank blanking, a forming hole for the fourth punch 105 to be inserted is formed in the center of the first die 205, the shape of the forming hole is matched with that of the fourth punch 105, and the forming hole is a through hole penetrating through the first die 205 in the vertical direction. The first lower die plate 201 has a blanking hole which communicates with a forming hole in the first die plate 205 and is used for passing blanking generated by blanking, and the blanking hole is a through hole penetrating the first lower die plate 201 in the vertical direction.

As shown in fig. 4 to 8, the second female dies 206 are fixedly disposed on the top surface of the first lower die plate 201, two second female dies 206 are disposed on the same straight line parallel to the first direction, the second female dies 206 are located on the inner side of the first female die 205, a groove for accommodating the second female dies 206 is disposed on the first female die 205, correspondingly, two inserts 109 are disposed on the same straight line parallel to the first direction, two inserts 109 are respectively matched with one second female die 206, the upper end of each insert 109 is fixedly connected with the first upper die plate 101, and the fourth punch 105 has a groove for accommodating each insert 109. The two inserts 109 are matched with the two second dies 206, the blank is blanked on two sides of the blank, and the fourth punch 105 and the first die 205 are matched to form a tablet, and the tablet is separated from the position where the guide hole on the blank is located.

As shown in fig. 4 to 8, the lower die assembly 2 further includes guide blocks 207 provided on the first lower die plate 201 for guiding the blank, and the guide blocks 207 are provided in two and the two guide blocks 207 are on the same straight line parallel to the first direction. In the second direction, the first fixing plate 202 is located between the first die 205 and one of the guide blocks 207, and the third fixing plate 204 is located between the first die 205 and the other guide block 207. The guide blocks 207 are horizontally arranged, the guide blocks 207 have a certain length, the length direction of the guide blocks 207 is parallel to the second direction, the guide blocks 207 extend towards the outer side of the first lower die plate 201, one end of each guide block 207 in the length direction is fixedly connected with the first lower die plate 201, the two guide blocks 207 are matched and used for guiding blanks to move towards the punch in the second direction, and the blanks are inserted between the two guide blocks 207. The guide block 207 has a first guide groove for inserting the blank, the first guide groove is a rectangular groove extending along the length direction of the guide block 207 on the guide block 207, the first guide groove forms an opening on a side plane perpendicular to the first direction of the guide block 207, the openings on the two guide blocks 207 are opposite, and two side edges of the blank are respectively inserted into the first guide groove on one guide block 207, so that the blank is ensured to run stably.

As shown in fig. 4 to 8, the lower die assembly 2 further includes guide bars 208 disposed on the first die 205 and used for guiding the blank, the guide bars 208 are disposed two and two guide bars 208 are on the same straight line parallel to the first direction, the two guide bars 208 are fixedly disposed on the top of the first die 205 and the guide bars 208 extend toward the upper side of the first die 205, and each guide bar 208 is respectively on the same straight line parallel to the second direction with one guide block 207. In the second orientation, one of the guides 208 is located between the first fixing plate 202 and one of the second female dies 206, and the other guide 208 is located between the third fixing plate 204 and the other of the second female dies 206. The two guides 208 cooperate to guide the movement of the blank in the second direction, the blank being inserted between the two guides 208. The guide 208 has a second guide groove for inserting the blank, the second guide groove is a rectangular groove extending along the length direction of the guide 208 on the guide 208, the second guide groove forms an opening on a side plane of the guide 208 perpendicular to the first direction, the openings on the two guides 208 are opposite, and two side edges of the blank are respectively inserted into the second guide groove on one guide 208 to ensure the stable operation of the blank.

As shown in fig. 4 to 8, the upper die assembly 1 further includes a guide nail 108 disposed on the first upper die plate 101, the guide nail 108 is disposed vertically, the upper end of the guide nail 108 is fixedly connected with the first upper die plate 101, the guide nail 108 is used for being inserted into a guide hole formed on a blank, so as to play a role in positioning, and the guide ruler 208 and the guide block 207 are matched to achieve the role of accurately positioning and spacing the blank, thereby being beneficial to improving the processing precision. The guide pins 108 are cylindrical, two guide pins 108 are arranged on the same straight line parallel to the second direction, and the second female die 206 is provided with a round hole for inserting the guide pins 108.

As shown in fig. 4 to 8, the blanking die for the sheet metal part of the automobile body of the present invention further includes a cutting device for cutting the blank, the cutting device including a mounting plate 4 provided on the first upper die plate 101, a cutting punch 3 provided on the mounting plate 4, a third die 5 provided on the first lower die plate 201 and mated with the cutting punch 3, and a window plate 6 provided on the second stripper plate 107 and located above the third die 5. The mounting panel 4 is vertical setting, and the upper end and the first cope match-plate pattern 101 fixed connection of mounting panel 4 cut off the fixed lower extreme that sets up at mounting panel 4 of drift 3, cut off the outside that drift 3 is located second stripper 107, in the second direction, second stripper 107 is located between drift 3 and the first stripper 106 cuts off. The third die 5 is fixedly arranged on the top surface of the first lower die plate 201, the top surface of the third die 5 is flush with the top surface of the first die 205, the third die 5 is positioned on one side of the first die 205, and the first fixing plate 202, the second fixing plate 203 and the third fixing plate 204 are positioned on the other side of the first die 205. The window plate 6 is positioned right above the third female die 5, and the window plate 6 is used for being matched with the third female die 5 to clamp blanks. The third die 5 is matched with the cutting punch 3 to cut the blank.

As shown in fig. 4 to 8, the cutting means are provided in two and on the same straight line parallel to the first direction, a certain distance is provided between the two cutting means, one cutting means is on the same straight line parallel to the second direction with the first fixing plate 202, the other cutting means is on the same straight line parallel to the second direction with the third fixing plate 204, and the two cutting means cooperate to cut the blank together.

As shown in fig. 25, the web is of a sheet-like structure, and has two positioning holes, which are circular holes and through holes penetrating through the web in the thickness direction of the web, and are used for positioning during subsequent station processing.

As shown in fig. 9 to 11, the first transfer die includes a first upper die assembly and a first lower die assembly, and the first upper die assembly can perform reciprocating linear motion in a vertical direction with respect to the first lower die assembly, thereby realizing a stamping action. The first upper die assembly and the first lower die assembly are correspondingly provided with four stations, namely a second drawing station, a third trimming and punching station, a fourth flanging station and a fifth punching and trimming station according to the processing sequence. After the first blanking station obtains the material sheet, the material sheet is transferred to a first transfer die for processing, and on the first transfer die, the material sheet is sequentially processed at a second drawing station, a third trimming and punching station, a fourth flanging station and a fifth punching and trimming station, and the second drawing station, the third trimming and punching station, the fourth flanging station and the fifth punching and trimming station are sequentially arranged along a second direction on the first transfer die. The blanking die is not connected with the first transfer die, the blanking die and the first transfer die are two independent dies, and the material sheet can be manually transferred to the first transfer die.

As shown in fig. 9 to 11, on the first transfer die, the web is first processed at the second drawing station in order to draw the curved shape of the workpiece, and the shape of the workpiece formed after the drawing process is as shown in fig. 3, and the main beam body and the second side plate are preliminarily formed on the workpiece. Corresponding to the second drawing station, the first upper die assembly comprises a second upper die plate 720 and two forming blocks 701 and 702 arranged on the second upper die plate 720, the first lower die assembly comprises a second lower die plate 810, a stripper plate 801 and a fixed seat 802 arranged on the second lower die plate 810, an inner forming block 803 arranged on the fixed seat 802 and matched with the two forming blocks 701 and 702 of the first upper die assembly, and two outer forming blocks 804 arranged on the stripper plate 801 and matched with the two forming blocks 701 and 702 of the first upper die assembly, wherein the inner forming block 803 is positioned between the two outer forming blocks 804. The second upper template 720 is horizontally arranged, the two forming blocks 701 and 702 are fixedly connected with the second upper template 720, the two forming blocks 701 and 702 are positioned below the second upper template 720, the forming blocks 701 and 702 are arranged side by side, and the forming blocks 701 and 702 are positioned on the same straight line parallel to the first direction. The second lower bolster 810 is the level setting, the stripper 801 is located the top of second lower bolster 810, the stripper 801 passes through nitrogen spring to be installed on second lower bolster 810, the stripper 801 can follow vertical direction for second lower bolster 810 and remove, fixing base 802 and second lower bolster 810 fixed connection and fixing base 802 are located the top of second lower bolster 810, the stripper 801 cover is located fixing base 802, the center department of stripper 801 has the through-hole that lets fixing base 802 pass, interior shaping piece 803 fixed mounting is on the top surface of fixing base 802, the top surface of interior shaping piece 803 is the shaping face, interior shaping piece 803 is located shaping piece 701 and shaping piece 702 under, the bottom surface of shaping piece 701 and shaping piece 702 is the shaping face. Two outer forming blocks 804 are fixedly mounted on the stripper plate 801, the two outer forming blocks 804 and the inner forming block 803 are positioned on the same straight line parallel to the second direction, the two outer forming blocks 804 are respectively positioned on one side of the inner forming block 803, and the two outer forming blocks 804 are positioned right below the forming blocks 701 and 702. The top surfaces of the outer forming blocks 804 are forming surfaces, the heights of the top surfaces of the two outer forming blocks 804 are smaller than the heights of the top surfaces of the inner forming blocks 803, the forming blocks 701 and 702 are matched with the two outer forming blocks 804 and one inner forming block 803, drawing processing is carried out on the material sheet, and the formed product is in a box-shaped structure.

As shown in fig. 9 to 11, on the first transfer die, the web is first processed at the second drawing station, then the workpiece is blanked and punched at the third trimming and punching station, the excess portion at the lower edge of the workpiece is sheared off, and the weight-reducing hole is preliminarily formed in the workpiece. Corresponding to the third trimming and punching station, the first upper die assembly comprises a third upper die plate 721, a fixed plate 703, a stripper plate 719, a locating pin 712 and a punch 713 arranged on the third upper die plate 721, and eight trimming blade blocks 704, 705, 706, 707, 708, 709, 710, 711 arranged on the fixed plate 703, the first lower die assembly comprises a third lower die plate 811, an inner die 805 and two outer dies 806 arranged on the third lower die plate 811, the stripper plate 719, the locating pin 712 and the punch 713 of the first upper die assembly are matched with the inner die 805, and the eight trimming blade blocks 704, 705, 706, 707, 708, 709, 710, 711 of the first upper die assembly are matched with the two outer dies 806, and the inner die 805 is positioned between the two outer dies 806. The third upper template 721 is horizontally arranged, the third upper template 721 and the second upper template 720 are at the same height, the fixed plate 703 is fixedly connected with the third upper template 721, the fixed plate 703 is positioned below the third upper template 721, the stripper plate 719 is connected with the third upper template 721 through a nitrogen spring, the stripper plate 719 is positioned below the third upper template 721, the fixed plate 703 is sleeved on the stripper plate 719, the fixed plate 703 is provided with a through hole for the stripper plate 719 to pass through, and the stripper plate 719 can move along the vertical direction relative to the third upper template 721. The punches 713 are arranged in two and the two punches 713 are arranged vertically, the stripper plate 719 has a through hole for the two punches 713 to pass through, the two punches 713 are on the same straight line parallel to the first direction, the punches 713 are located below the third upper die plate 721, the upper ends of the punches 713 are fixedly connected with the third upper die plate 721, and the punches 713 are used for punching two rectangular holes in the top surface of the workpiece to form two lightening holes. The positioning pins 712 are arranged in two, the two positioning pins 712 are arranged vertically, the discharging plate 719 is provided with a through hole for the two positioning pins 712 to pass through, the positioning pins 712 are positioned on the same straight line parallel to the first direction, the two punches 713 are positioned between the two positioning pins 712, the upper ends of the positioning pins 712 are fixedly connected with the third upper template 721, the two positioning pins 712 are respectively inserted into one positioning hole on a workpiece, so that the workpiece is positioned, and the machining precision is ensured. Eight trimming blade blocks 704, 705, 706, 707, 708, 709, 710, 711 are fixedly connected to the fixed plate 703, the eight trimming blade blocks 704, 705, 706, 707, 708, 709, 710, 711 are located below the fixed plate 703, the eight trimming blade blocks 704, 705, 706, 707, 708, 709, 710, 711 are arranged in two rows, wherein the trimming blade blocks 704, 705, 706, and 707 are on the same straight line parallel to the first direction, the trimming blade blocks 708, 709, 710, and 711 are on another straight line parallel to the first direction, the trimming blade blocks 704, 706, and 707 are located on one side of the discharge plate 719, and the trimming blade blocks 708, 709, 710, and 711 are located on the other side of the discharge plate 719. The third lower die plate 811 is horizontally arranged, the inner concave die 805 and the two outer concave dies 806 are fixedly arranged on the third lower die plate 811, the inner concave die 805 and the two outer concave dies 806 are positioned above the third lower die plate 811, the inner concave die 805 and the two outer concave dies 806 are positioned on the same straight line parallel to the second direction, the inner concave die 805 is positioned under the stripper 719, the shape of the inner concave die 805 is matched with the shape of the stripper 719, the inner concave die 805 and the stripper 719 are matched and clamped with a workpiece, and the workpiece is sleeved on the inner concave die 805. Two outer female dies 806 are respectively located at one side of the inner female die 805, one outer female die 806 is located below the trimming blade block 708, the trimming blade block 709, the trimming blade block 710 and the trimming blade block 711, and the outer female die 806 is matched with the trimming blade block 704, the trimming blade block 705, the trimming blade block 706 and the trimming blade block 707 to perform blanking on one side edge of the workpiece; another external female die 806 is located below the trimming blade blocks 704, 705, 706 and 707, and the external female die 806 cooperates with the trimming blade blocks 704, 705, 706 and 707 to blank the other side edge of the article and finally shear off the excess portions at the edges on opposite sides of the article.

As shown in fig. 9 to 11, on the first transfer die, the web is first processed at the second drawing station, then punched and punched in the third trimming and punching station, and then turned up in the fourth flanging station. Corresponding to the fourth flanging station, the first upper die assembly comprises a fourth upper die plate 722, a discharge plate 714 and two outer forming blocks 716 which are arranged on the fourth upper die plate 722, and an inner forming block 715 which is arranged on the discharge plate 714, wherein the inner forming block 714 is positioned between the two outer forming blocks 716, the first lower die assembly comprises a fourth lower die 812, and forming blocks 807 and two positioning pins 808 which are arranged on the fourth lower die 812, and the inner forming block 715 and the two outer forming blocks 716 of the first upper die assembly are matched with the forming blocks 807. The fourth upper template 722 is arranged horizontally, the fourth upper template 722 and the second upper template 720 are located at the same height, the stripper plate 714 is connected with the fourth upper template 722 through a nitrogen spring, the stripper plate 714 is located below the fourth upper template 722, and the stripper plate 714 can move in the vertical direction relative to the fourth upper template 722. The inner shaping block 715 is fixedly mounted on the bottom surface of the fourth upper die plate 722, the bottom surface of the inner shaping block 715 is a shaping surface, and the inner shaping block 715 is located right above the shaping block 807. The two outer forming blocks 716 are fixedly mounted on the bottom surface of the fourth upper template 722, the bottom surface of the outer forming block 716 is a forming surface, the two outer forming blocks 716 and the inner forming block 715 are positioned on the same straight line parallel to the second direction, the two outer forming blocks 716 are respectively positioned on one side of the inner forming block 715, and the two outer forming blocks 716 are positioned right above the forming block 807. The fourth lower die 812 is horizontally arranged, the fourth lower die 812 is at the same height as the second lower die plate 810 and the third lower die plate 811, the forming block 807 is fixedly arranged on the fourth lower die 812, the forming block 807 is positioned above the fourth lower die 812, and the top surface of the forming block 807 is a forming surface. The inner forming block 715 is matched with the lower forming block 807 to clamp the workpiece, the two outer forming blocks 716 are matched with the lower forming block 807 to perform flanging forming on the workpiece, and the lower edge of one side part of the workpiece is bent downwards by 90 degrees so as to preliminarily form a first side plate and a second side flanging on the workpiece.

As shown in fig. 9 to 11, on the first transfer die, the web is first processed at the second drawing station, then punched and punched on the product at the third trimming and punching station, then turned-up on the product at the fourth turning station, and finally punched and punched on the fifth trimming and punching station. Corresponding to the fifth punching and trimming station, the first upper die assembly comprises a fifth upper die plate 723, a stripper plate 717 arranged on the fifth upper die plate 723 and a forming block 718 arranged on the stripper plate 717, and the first lower die assembly comprises a fifth lower die plate 813 and a female die 809 arranged on the fifth lower die plate 813, and the forming block 718 arranged on the stripper plate 717 is matched with the female die 809 arranged on the fifth lower die plate 813.

The fifth upper template 723 is horizontally arranged, the fifth upper template 723 and the second upper template 720 are at the same height, the stripper plate 717 is connected with the fifth upper template 723 through a nitrogen spring, the stripper plate 717 is positioned below the fifth upper template 723, and the stripper plate 717 can move in the vertical direction relative to the fifth upper template 723. The forming block 718 is fixedly mounted on the bottom surface of the stripper plate 717, the bottom surface of the forming block 718 is a forming surface, and the forming block 718 is located directly above the die 809. The fifth lower die plate 813 is horizontally arranged, the fifth lower die plate 813, the second lower die plate 810 and the third lower die plate 811 are located at the same height, the concave die 809 is fixedly installed on the fifth lower die plate 813 and located above the fifth lower die plate 813, and the top surface of the concave die 809 is a molding surface. The forming block 718 cooperates with the underlying matrix 809 to clamp the article. The first transfer die further comprises a first punching device 13, a second punching device 14, a first punching device 15 and a second punching device 16, wherein the first punching device 13, the second punching device 14, the first punching device 15 and the second punching device 16 are connected with the first upper die assembly and the first lower die assembly, the first punching device 13 and the second punching device 14 are oppositely arranged, the first punching device 15 and the second punching device 16 are oppositely arranged, a concave die 809 arranged on a fifth upper die plate 723 is positioned between the first punching device 13 and the second punching device 14, and a concave die 809 arranged on the fifth upper die plate 723 is also positioned between the first punching device 15 and the second punching device 16. The first punching means 13, the die 809 and the second punching means 14 are on the same line parallel to the second direction, and the first blanking means 15, the die 809 and the second blanking means 16 are on the same line parallel to the first direction. The first blanking device 15 and the second blanking device 16 blanking the edges of the two ends of the product in the length direction, and cutting off the redundant parts at the edges of the two opposite ends of the product. The first punching device 13 and the second punching device 14 are used for punching the workpiece, the first punching device 13 is used for processing two second through holes on the second side plate on the workpiece, and the second punching device 14 is used for processing two first through holes on the first side plate on the workpiece.

As shown in fig. 12 and 13, the first punching device 13 includes a first punching slider 1302 movably provided on a fifth lower die plate 813, a first punching driving block 1301 fixedly provided on a fifth upper die plate 723 for driving the first punching slider 1302, and a first punching punch 1303 fixedly provided on the first punching slider 1302, the first punching punch 1303 being engaged with a die 809, the die 809 having a circular hole into which the first punching punch 1303 is inserted, the first punching punch 1303 being a circular punch. The first punching slider 1302 is in sliding connection with the fifth lower die plate 813, the moving direction of the first punching slider 1302 is parallel to the second direction, the first punching driving block 1301 and the first punching slider 1302 form a wedge mechanism, the first punching driving block 1301 contacts with the first punching slider 1302, and the axis of the first punching punch 1303 is parallel to the second direction. The first punching punches 1303 are arranged in parallel, the two first punching punches 1303 are arranged side by side and the two first punching punches 1303 are at the same height, and the two first punching punches 1303 are on the same straight line parallel to the first direction. When punching is performed, the fifth upper template 723 drives the first punching driving block 1301 to perform linear motion in the vertical direction, under the action of the first punching driving block 1301, the first punching slider 1302 drives the two first punching punches 1303 to perform linear motion towards the female die 809 along the horizontal direction, and finally, the two first punching punches 1303 perform punching on the workpiece, so as to punch two circular second through holes.

As shown in fig. 12 and 14, the second punching device 14 includes a second punching slider 1402 provided movably on a fifth lower die plate 813, a second punching drive block 1401 fixedly provided on a fifth upper die plate 723 for driving the second punching slider 1402, and a second punching punch 1403 fixedly provided on the second punching slider 1402, the second punching punch 1403 being engaged with a die 809, the die 809 having a hole into which the second punching punch 1403 is inserted. The second punching slider 1402 and the fifth lower die plate 813 are in sliding connection, the moving direction of the second punching slider 1402 is parallel to the second direction, the moving direction of the second punching slider 1402 is opposite to the moving direction of the first punching slider 1302, the second punching driving block 1401 and the second punching slider 1402 form a wedge mechanism, the second punching driving block 1401 is in contact with the second punching slider 1402, and the axis of the second punching punch 1403 is parallel to the second direction. The second punching punches 1403 are arranged in parallel, the two second punching punches 1403 are arranged side by side and the two second punching punches 1403 are at the same height, and the two second punching punches 1403 are on the same straight line parallel to the first direction. When punching is performed, the fifth upper template 723 drives the second punching driving block 1401 to perform linear motion in the vertical direction, and under the action of the second punching driving block 1401, the second punching slider 1402 drives the two second punching punches 1403 to perform linear motion towards the female die 809 along the horizontal direction, so that finally the two second punching punches 1403 perform punching on the workpiece, and two first through holes are punched.

As shown in fig. 12 and 15, the first blanking device 15 includes a first blanking slider 1502 movably disposed on a fifth lower die plate 813, a first blanking driving block 1501 fixedly disposed on a fifth upper die plate 723 for driving the first blanking slider 1502, and a first trimming blade block 1503 fixedly disposed on the first blanking slider 1502, and the first trimming blade block 1503 is mated with the die 809. The first blanking slider 1502 is slidably connected to the fifth lower die plate 813, the moving direction of the first blanking slider 1502 is a horizontal direction, the first blanking driving block 1501 and the first blanking slider 1502 form a cam mechanism, and the first blanking driving block 1501 contacts the first blanking slider 1502. During blanking, the fifth upper template 723 drives the first blanking driving block 1501 to move linearly in the vertical direction, under the action of the first blanking driving block 1501, the first blanking sliding block 1502 drives the first trimming blade block 1503 to move linearly in the horizontal direction towards the female die 809, and finally the first trimming blade block 1503 cooperates with the female die 809 to blank the lower edge of the end part of the workpiece and cut off the redundant part at the lower edge of the end part of the workpiece.

As shown in fig. 12 and 16, the second blanking device 16 includes a second blanking slider 1602 movably disposed on a fifth lower die plate 813, a second blanking driving block 1601 fixedly disposed on a fifth upper die plate 723 for driving the second blanking slider 1602, and a second trimming blade 1603 fixedly disposed on the second blanking slider 1602, the second trimming blade 1603 being mated with the die 809. The second blanking slider 1602 is slidably connected to the fifth lower die plate 813, the second blanking slider 1602 moves in a horizontal direction, the second blanking driving block 1601 and the second blanking slider 1602 form a cam mechanism, and the second blanking driving block 1601 contacts the second blanking slider 1602. During blanking, the fifth upper template 723 drives the second blanking driving block 1601 to perform linear motion in the vertical direction, under the action of the second blanking driving block 1601, the second blanking slider 1602 drives the second trimming blade 1603 to perform linear motion towards the female die 809 in the horizontal direction, and finally the second trimming blade 1603 cooperates with the female die 809 to perform blanking on the lower edge of the end portion of the workpiece, and cut off the redundant portion at the lower edge of the end portion of the workpiece.

As shown in fig. 9, the first transfer mold further includes a first upper mold base 35 and a first lower mold base 36, the first upper mold base 35 and the first lower mold base 36 have a certain length and width, the length direction of the first upper mold base 35 and the first lower mold base 36 is parallel to the second direction, the width direction of the first upper mold base 35 and the first lower mold base 36 is parallel to the first direction, the second upper mold plate 720, the third upper mold plate 721, the fourth upper mold plate 722 and the fifth upper mold plate 723 are sequentially arranged along the length direction of the first upper mold base 35, and the second upper mold plate 720, the third upper mold plate 721, the fourth upper mold plate 722 and the fifth upper mold plate 723 are fixedly connected with the first upper mold base 35, the second upper die plate 720, the third upper die plate 721, the fourth upper die plate 722 and the fifth upper die plate 723 are located below the first upper die plate 35, the first upper die plate 35 drives the second upper die plate 720, the third upper die plate 721, the fourth upper die plate 722 and the fifth upper die plate 723 to move synchronously along the vertical direction, the second lower die plate 810, the third lower die plate 811, the fourth lower die plate 812 and the fifth lower die plate 813 are sequentially arranged along the length direction of the first lower die plate 36, the second lower die plate 810, the third lower die plate 811, the fourth lower die plate 812 and the fifth lower die plate 813 are fixedly connected with the first lower die plate 36, and the second lower die plate 810, the third lower die plate 811, the fourth lower die plate 812 and the fifth lower die plate 813 are located above the first lower die plate 36.

As shown in fig. 17 to 19, the second transfer die includes a second upper die assembly and a second lower die assembly, and the second upper die assembly is capable of reciprocating rectilinear motion in a vertical direction with respect to the second lower die assembly, thereby realizing a punching action. The second upper die assembly and the second lower die assembly are correspondingly provided with four stations, namely a sixth flanging station, a seventh forming and flanging station, an eighth flanging station and a ninth flanging station according to the processing sequence. After the workpiece is machined on the first transfer die, the workpiece is transferred to a second transfer die to be continuously machined, and on the second transfer die, the workpiece is machined at a sixth flanging station, a seventh forming and flanging station, an eighth flanging station and a ninth flanging station in sequence, and the sixth flanging station, the seventh forming and flanging station, the eighth flanging station and the ninth flanging station are sequentially arranged along the second direction on the second transfer die. The second transfer die is not connected with the first transfer die, the second transfer die and the first transfer die are two independent sets of dies, and the workpiece can be manually transferred to the second transfer die.

As shown in fig. 17 to 19, on the second transfer die, the article is first hemmed at a sixth hemming station. Corresponding to the sixth flanging station, the second upper die assembly comprises a sixth upper die plate 911 and two forming blocks 901 and 902 arranged on the sixth upper die plate 911, the second lower die assembly comprises a sixth lower die plate 1010, a stripper plate 1001 arranged on the sixth lower die plate 1010, a forming block 1002 arranged on the stripper plate 1001 and a forming block 1003 arranged on the sixth lower die plate 1010, and the two forming blocks 901 and 902 of the second upper die assembly are matched with the two forming blocks 1002 and 1003 of the second lower die assembly to carry out flanging forming on the workpiece. The sixth upper die plate 911 is horizontally arranged, the forming block 901 and the forming block 902 are fixedly mounted on the bottom surface of the sixth upper die plate 911, the bottom surfaces of the forming block 901 and the forming block 902 are forming surfaces, the forming block 901 and the forming block 902 are on the same straight line parallel to the second direction, the forming block 901 and the forming block 902 have a certain length, and the length direction of the forming block 901 and the forming block 902 is parallel to the first direction. The sixth lower die plate 1010 is horizontally arranged, the stripper plate 1001 is connected with the sixth lower die plate 1010 through a nitrogen spring, the stripper plate 1001 is located above the sixth lower die plate 1010, and the stripper plate 1001 can move in the vertical direction relative to the sixth lower die plate 1010. The forming block 1002 is fixedly mounted on the top surface of the stripper plate 1001, the forming block 1003 is fixedly mounted on the top surface of the sixth lower die plate 1010, the top surfaces of the forming block 1002 and the forming block 1003 are forming surfaces, the forming block 1002 and the forming block 1003 are on the same straight line parallel to the second direction, the forming block 1002 and the forming block 1003 have a certain length, the length direction of the forming block 1002 and the forming block 1003 is parallel to the first direction, and the forming block 1002 is located between the forming block 1003 and the seventh forming and flanging station in the second direction. The shaping block 1002 is located directly below the shaping block 901 and the shaping block 902, the shaping block 1003 is located below the side of the shaping block 902, the shaping block 1002 is matched with the shaping block 901 to clamp the workpiece, the shaping block 1003 is matched with the shaping block 902 to perform flanging molding on the workpiece to preliminarily mold a third side flanging on the workpiece.

As shown in fig. 17 to 19, on the second transfer die, the workpiece is first hemmed in a sixth hemming station, and then the workpiece is hemmed in a seventh hemming and hemming station. Corresponding to the seventh forming and flanging station, the second upper die assembly comprises a seventh upper die plate 912, a stripper plate 903 arranged on the seventh upper die plate 912, two punches 904, a front forming block 905 and two side forming blocks 906, and a stripper plate 907 arranged on the stripper plate 903, and the second lower die assembly comprises a seventh lower die plate 1011, and a front forming block 1004 and a rear forming block 1005 arranged on the seventh lower die plate 1011. The seventh upper template 912 is horizontally arranged, the seventh upper template 912 and the sixth upper template 911 are at the same height, the stripper plate 903 is connected with the seventh upper template 912 through a nitrogen spring, the stripper plate 903 is located below the seventh upper template 912, and the stripper plate 714 is movable in a vertical direction relative to the seventh upper template 912. The material pressing plate 907 is fixedly arranged on the bottom surface of the unloading plate 714, the material pressing plate 907 is positioned below the unloading plate 714, and the bottom surface of the material pressing plate 907 is a molding surface for being attached to the top surface of the beam main plate body of the workpiece. The front forming block 905 is fixedly mounted on the top surface of the seventh lower die plate 1011, the front forming block 905 is located below the seventh lower die plate 1011, and the bottom surface of the front forming block 905 is a forming surface for attaching to the third side flange and the second side flange of the article. Two side forming blocks 906 are fixedly mounted on the top surface of the seventh lower die plate 1011, the two side forming blocks 906 are located below the seventh lower die plate 1011, and the bottom surfaces of the two side forming blocks 906 are forming surfaces for bonding with the end surfaces of the article. The two side forming blocks 906 are on the same line parallel to the first direction as the press plate 907, and the press plate 907 is located between the two side forming blocks 906. The seventh lower die plate 1011 is horizontally arranged, the seventh lower die plate 1011 and the sixth lower die plate 1010 are at the same height, the front forming block 1004 and the rear forming block 1005 are fixedly mounted on the seventh lower die plate 1011, and the front forming block 1004 and the rear forming block 1005 are located above the seventh lower die plate 1011, and the top surfaces of the front forming block 1004 and the rear forming block 1005 are forming surfaces. The front and rear forming blocks 1004, 1005 are on the same line parallel to the second direction in which the front and rear forming blocks 1004, 1005 have a certain length and the length directions of the front and rear forming blocks 1004, 1005 are parallel to the first direction, and the front forming block 1004 is located between the rear forming block 1005 and the sixth flanging station. The front forming block 1004 of the second lower die assembly is located below the front forming block 905 of the second upper die assembly and the two front forming blocks 905, 1004 cooperate to clamp the article. The rear forming block 1005 is located below the pressing plate 907 and the two side forming blocks 906, and the rear forming block 1005 is matched with the pressing plate 907 to clamp the workpiece, and the rear forming block 1005 is matched with the two side forming blocks 906 to perform flanging forming on two ends of the workpiece so as to preliminarily form a first end flanging and a second end flanging on the workpiece. The two punches 904 are fixedly installed on the bottom surface of the seventh upper die plate 912, the two punches 904 are vertically arranged, the upper ends of the two punches 904 are fixedly connected with the seventh upper die plate 912, the two punches 904 are on the same straight line parallel to the first direction, and the material pressing plate 907 and the unloading plate 714 have two through holes for the two punches 904 to pass through. Two punches 904 are each used to insert into a lightening hole in the article, flanging the edge of the lightening hole, and forming an internal flange at the edge of the lightening hole.

As shown in fig. 17 to 19, on the second transfer die, the workpiece is first turned over at the sixth turn-up station, then turned over at the seventh forming and turn-up station, and then turned over again at the eighth turn-up station. Corresponding to the eighth flanging station, the second upper die assembly comprises an eighth upper die plate 913, a stripper plate 908 arranged on the eighth upper die plate 913 and a pressing plate 909 arranged on the stripper plate 908, and the second lower die assembly comprises an eighth lower die plate 1012 and a forming block 1006 arranged on the eighth lower die plate 1012 and matched with the pressing plate 909. Eighth cope match-plate pattern 913 is the level setting, and eighth cope match-plate pattern 913 is in same height with seventh cope match-plate pattern 912, and stripper 908 is the level setting and stripper 908 is located the below of eighth cope match-plate pattern 913, and stripper 908 passes through nitrogen spring and eighth cope match-plate pattern 913 to be connected, and stripper 908 can follow vertical direction for eighth cope match-plate pattern 913. The pressing plate 909 is fixedly installed on the bottom surface of the stripper plate 908, the pressing plate 909 is located below the stripper plate 908, and the bottom surface of the pressing plate 909 is a molding surface for being attached to the top surface of the beam main plate body of the workpiece. The eighth lower die plate 1012 is horizontally arranged, the eighth lower die plate 1012 and the seventh lower die plate 1011 are positioned at the same height, the forming block 1006 is fixedly arranged on the eighth lower die plate 1012, the forming block 1006 is positioned above the eighth lower die plate 1012, and the top surface of the forming block 1006 is a forming surface. When the workpiece is turned and molded, the pressing plate 909 is matched with the lower molding block 1006 to clamp the workpiece. The second transfer die further comprises a first flanging device and a second flanging device, the first flanging device and the second flanging device are connected with the second upper die assembly and the second lower die assembly, the first flanging device and the second flanging device are arranged oppositely, the forming block 1006 is located between the first flanging device and the second flanging device, the forming block 1006 and the first flanging device and the second flanging device are located on the same straight line parallel to the second direction, and in the vertical direction, the first flanging device and the second flanging device are located on an eighth upper die plate 913 and an eighth lower die plate 1012.

As shown in fig. 20, the first flanging device includes a first flanging slide 18 movably disposed on an eighth lower die plate 1012, a first flanging driving block 17 fixedly disposed on an eighth upper die plate 913 and used for driving the first flanging slide 18, and a first flanging punch 19 fixedly disposed on the first flanging slide 18, the first flanging punch 19 is matched with the forming block 1006, the forming block 1006 has a circular hole into which the first flanging punch 19 is inserted, and the first flanging punch 19 is a circular punch. The first flanging sliding block 18 is in sliding connection with the eighth lower die plate 1012, the moving direction of the first flanging sliding block 18 is parallel to the second direction, the first flanging driving block 17 and the first flanging sliding block 18 form a wedge mechanism, the first flanging driving block 17 is contacted with the first flanging sliding block 18, and the axis of the first flanging punch 19 is parallel to the second direction. The first flanging punches 19 are arranged in parallel, the two first flanging punches 19 are arranged side by side, the two first flanging punches 19 are located at the same height, and the two first flanging punches 19 are located on the same straight line parallel to the first direction. The two first flanging punches 19 are respectively inserted into a second through hole on the workpiece, flanging is performed on the edge of the second through hole, and an inner flanging is formed on the edge of the second through hole. During processing, the eighth upper die plate 913 drives the first flanging driving block 17 to linearly move in the vertical direction, and under the action of the first flanging driving block 17, the first flanging sliding block 18 drives the two first flanging punches 19 to linearly move towards the forming block 1006 along the horizontal direction, so that the two first flanging punches 19 form an inner flanging at the edges of the two second through holes of the workpiece, and finally the second side plate is formed.

As shown in fig. 20, the second flanging device includes a second flanging slide 21 movably disposed on an eighth lower die plate 1012, a second flanging driving block 20 fixedly disposed on an eighth upper die plate 913 and used for driving the second flanging slide 21, and a second flanging punch 22 fixedly disposed on the second flanging slide 21, the second flanging punch 22 is matched with the forming block 1006, the forming block 1006 has a circular hole into which the second flanging punch 22 is inserted, and the second flanging punch 22 is a circular punch. The second flanging sliding block 21 is in sliding connection with the eighth lower die plate 1012, the moving direction of the second flanging sliding block 21 is parallel to the second direction, the second flanging driving block 20 and the second flanging sliding block 21 form a wedge mechanism, the second flanging driving block 20 is contacted with the second flanging sliding block 21, and the axis of the second flanging punch 22 is parallel to the second direction. The second flanging punches 22 are arranged in parallel, the two second flanging punches 22 are arranged side by side, the two second flanging punches 22 are at the same height, and the two second flanging punches 22 are on the same straight line parallel to the first direction. The two second flanging punches 22 are respectively inserted into a second through hole on the workpiece, flanging is performed on the edge of the second through hole, and an inner flanging is formed on the edge of the second through hole. During processing, the eighth upper die plate 913 drives the second flanging driving block 20 to linearly move in the vertical direction, and under the action of the second flanging driving block 20, the second flanging sliding block 21 drives the two second flanging punches 22 to linearly move towards the forming block 1006 along the horizontal direction, so that the two second flanging punches 22 form an inner flanging at the edges of the two first through holes of the workpiece, and finally the first side plate is formed.

As shown in fig. 17 to 19, on the second transfer die, the workpiece is first turned over at the sixth turn-up station, then turned over at the seventh forming and turn-up station, then turned over again at the eighth turn-up station, and finally turned over at the ninth turn-up station. Corresponding to the ninth turn-up station, the second upper die assembly includes a ninth upper die plate 914 and a forming block 910 disposed on the ninth upper die plate 914, and the second lower die assembly includes a ninth lower die plate 1013, a stripper plate 1007 disposed on the ninth lower die plate 1013, a rear forming block 1008 disposed on the stripper plate 1007, and a front forming block 1009 disposed on the ninth lower die plate 1013. The ninth cope match-plate pattern 914 is the level setting, and ninth cope match-plate pattern 914 is in same height with eighth cope match-plate pattern 913, and shaping piece 910 fixed mounting is on the bottom surface of ninth cope match-plate pattern 914, and shaping piece 910 is located the below of ninth cope match-plate pattern 914, and shaping piece 910's bottom surface is the shaping face that is used for laminating with the finished piece. The ninth lower die plate 1013 is horizontally arranged, the discharge plate 1007 is horizontally arranged and the discharge plate 1007 is positioned above the ninth lower die plate 1013, the discharge plate 1007 is connected with the ninth lower die plate 1013 by a nitrogen spring, and the discharge plate 1007 can move in the vertical direction relative to the ninth lower die plate 1013. The rear forming block 1008 is fixedly mounted on the top surface of the discharge plate 1007, the rear forming block 1008 is positioned above the discharge plate 1007, the top surface of the rear forming block 1008 is a forming surface for being attached to the inner wall surface of the product, and the product is sleeved on the rear forming block 1008. A front forming block 1009 is fixedly installed on the top surface of the ninth lower die plate 1013, the front forming block 1009 being located above the ninth lower die plate 1013, the front forming block 1009 having a forming surface for conforming to the surface of the article. The front forming block 1009 and the rear forming block 1008 are on the same line parallel to the second direction, the front forming block 1009 and the rear forming block 1008 have a certain length and the length direction of the front forming block 1009 and the rear forming block 1008 are parallel to the first direction, and the front forming block 1009 is located between the rear forming block 1008 and the eighth flanging station in the second direction. The second upper die assembly forming block 910 cooperates with the second lower die assembly rear forming block 1008 and front forming block 1009 to clamp the article and to turn-up the article to form a complete third side turn-up on the article.

As shown in fig. 17, the second transfer mold further includes a second upper mold base 37 and a second lower mold base 38, the second upper mold base 37 and the second lower mold base 38 have a certain length and a certain width, the length directions of the second upper mold base 37 and the second lower mold base 38 are parallel to the second direction, the width directions of the second upper mold base 37 and the second lower mold base 38 are parallel to the first direction, the sixth upper mold base 911, the seventh upper mold base 912, the eighth upper mold base 913 and the ninth upper mold base 914 are sequentially arranged along the length direction of the second upper mold base 37, the sixth upper mold base 911, the seventh upper mold base 912, the eighth upper mold base 913 and the ninth upper mold base 914 are fixedly connected with the second upper mold base 37, the sixth upper mold base 911, the seventh upper mold base 912, the eighth upper mold base 913 and the ninth upper mold base 914 are positioned below the second upper mold base 37, the sixth upper mold base 37 drives the sixth upper mold base 911, the seventh upper mold base 912, the eighth upper mold base 912 and the ninth upper mold base 914 to move in the vertical direction in synchronization, the sixth lower mold base 1010, the seventh lower mold base 1013 and the eighth lower mold base 1012 are sequentially connected with the eighth lower mold base 1013 and the eighth lower mold base 1012 and the eighth lower mold base 1013 are sequentially positioned along the length of the seventh lower mold base 1012 and the eighth lower mold base 1012 is fixedly connected with the sixth lower mold base 1013 and the eighth lower mold base 1013.

As shown in fig. 21 to 23, the third transfer die includes a third upper die assembly and a third lower die assembly, and the third upper die assembly is capable of reciprocating rectilinear motion in a vertical direction with respect to the third lower die assembly, thereby realizing a punching action. The third upper die assembly and the third lower die assembly are correspondingly provided with three stations, namely a tenth flanging station, an eleventh flanging station and a twelfth punching and shaping station according to the processing sequence. After the workpiece is machined on the second transfer die, the workpiece is transferred to a third transfer die to be continuously machined, and on the third transfer die, the workpiece is machined at a tenth flanging station, an eleventh flanging station and a twelfth punching and shaping station in sequence, and the tenth flanging station, the eleventh flanging station and the twelfth punching and shaping station are sequentially arranged along the second direction on the third transfer die. The third transfer die is not connected with the second transfer die, the third transfer die and the second transfer die are two independent sets of dies, and the workpiece can be manually transferred to the third transfer die.

As shown in fig. 21 to 23, on the third transfer die, the article is first hemmed at a tenth hemming station. Corresponding to the tenth flanging station, the third upper die assembly comprises a tenth upper die plate 1108, a pressing plate 1101 and a rear forming block 1102 which are arranged on the tenth upper die plate 1108, and two front forming blocks 1103 which are arranged on the pressing plate 1101, and the third lower die assembly comprises a tenth lower die plate 1207 and forming blocks 1201 which are arranged on the tenth lower die plate 1207. Tenth cope match-plate pattern 1108 is the level setting, and pressure flitch 1101 passes through nitrogen spring and is connected with tenth cope match-plate pattern 1108, and pressure flitch 1101 is located the below of tenth cope match-plate pattern 1108, and pressure flitch 1101 can follow vertical direction and remove for tenth cope match-plate pattern 1108, and the bottom surface of pressure flitch 1101 is the shaping face that is used for laminating with the top surface of the first curb plate of finished piece (the finished piece is when transferring to the third transfer mould by the second transfer mould, need rotate 90 degrees with the finished piece to make the first curb plate of finished piece be located the top, the finished piece is placed in tenth turn-ups station department with the mode that first curb plate is the horizontality. The two front forming blocks 1103 are fixedly arranged on the bottom surface of the material pressing plate 1101, the two front forming blocks 1103 are positioned below the material pressing plate 1101, the bottom surfaces of the two front forming blocks 1103 are forming surfaces for being turned and attached to two end parts of a workpiece, the forming surfaces of the two front forming blocks 1103 and the material pressing plate 1101 are positioned on the same straight line parallel to the first direction, and the forming surface of the material pressing plate 1101 is positioned between the two front forming blocks 1103. The rear forming block 1102 is fixedly mounted on the bottom surface of the tenth upper die plate 1108, the rear forming block 1102 being located below the tenth upper die plate 1108, the rear forming block 1102 being located between the eleventh flanging station and the two front forming blocks 1103 in the second direction. The tenth lower die plate 1207 is horizontally arranged, the forming block 1201 is fixedly arranged on the top surface of the tenth lower die plate 1207, the top surface of the forming block 1201 is a forming surface attached to the inner wall surface of a workpiece, and the workpiece is sleeved on the forming block 1201. The forming block 1201 is located below the pressing plate 1101, the rear forming block 1102 and the two front forming blocks 1103, the forming block 1201 is matched with the rear forming block 1102, the edge of the side of the first side plate, which is far away from the main beam plate body, is bent downwards by 90 degrees, and the forming block 1201 is matched with the two front forming blocks 1103 so as to form complete first end flanging and second end flanging at two ends of the workpiece.

As shown in fig. 21 to 23, on the third transfer die, the workpiece is first turned over at the tenth turn-up station, and then turned over again at the eleventh turn-up station. Corresponding to the eleventh flanging station, the third upper die assembly comprises an eleventh upper die plate 1109 and a pressing plate 1104 arranged on the eleventh upper die plate 1109, and the third lower die assembly comprises an eleventh lower die plate 1208 and a forming block 1202 arranged on the eleventh lower die plate 1208. The eleventh upper template 1109 is horizontally arranged, the eleventh upper template 1109 and the tenth upper template 1108 are located at the same height, the pressing plate 1104 is connected with the eleventh upper template 1109 through a nitrogen spring, the pressing plate 1104 is located below the eleventh upper template 1109, the pressing plate 1104 can move in the vertical direction relative to the eleventh upper template 1109, and the bottom surface of the pressing plate 1104 is a molding surface for being attached to the top surface of the first side plate of the workpiece (the workpiece is placed in the same posture at the tenth flanging station and the eleventh flanging station). The eleventh lower template 1208 is horizontally arranged, the forming block 1202 is fixedly arranged on the top surface of the eleventh lower template 1208, the top surface of the forming block 1202 is a forming surface attached to the inner wall surface of a workpiece, and the workpiece is sleeved on the forming block 1202. The forming block 1202 is located below the platen 1104, and the forming block 1202 cooperates with the platen 1104 to clamp the article. The third transfer die further comprises a third flanging device, the third flanging device is connected with the third upper die assembly and the third lower die assembly, the forming block 1202 is matched with the third flanging device to form a complete first side flanging on the workpiece, the forming block 1202 and the third flanging device are positioned on the same straight line parallel to the second direction, the third flanging device is positioned on the forming block 1202 and the twelfth punching and shaping station workpiece, and the third flanging device is positioned on the eighth upper die plate 913 and the eighth lower die plate 1012 workpiece in the vertical direction.

As shown in fig. 24, the third flanging device includes a third flanging slide 24 movably disposed on an eleventh lower die plate 1208, a third flanging driving block 23 fixedly disposed on an eleventh upper die plate 1109 and used for driving the third flanging slide 24, and a flanging punch 25 fixedly disposed on the third flanging slide 24, wherein the flanging punch 25 is matched with the forming block 1202. The third flanging sliding block 24 is in sliding connection with the eleventh lower die plate 1208, the moving direction of the third flanging sliding block 24 is parallel to the second direction, the third flanging driving block 23 and the third flanging sliding block 24 form a wedge mechanism, and the third flanging driving block 23 is contacted with the third flanging sliding block 24. During processing, the eleventh upper template 1109 drives the third flanging driving block 23 to linearly move in the vertical direction, and under the action of the third flanging driving block 23, the third flanging sliding block 24 drives the flanging male die 25 to linearly move towards the forming block 1202 along the horizontal direction, so that the lower end edge of the bending part connected with the first side plate on the workpiece is bent inwards by 90 degrees, an inner flanging is formed, and finally the first side flanging is formed.

As shown in fig. 21 to 23, on the third transfer die, the workpiece is first turned over at the tenth turn-up station, then turned over again at the eleventh turn-up station, and finally punched and shaped at the twelfth punching and shaping station. Corresponding to the twelfth punching and shaping station, the third upper die assembly comprises a twelfth upper die plate 1110, a stripper plate 1105 arranged on the twelfth upper die plate 1110, two forming blocks 1106 and a punch 1107, and a window plate arranged on the stripper plate 1105, and the third lower die assembly comprises a twelfth lower die plate 1209, a fixed seat 1203 and two forming blocks 1204 arranged on the twelfth lower die plate 1209, and a female die 1205 arranged on the fixed seat 1203. The twelfth upper die plate 1110 is horizontally arranged, the stripper plate 1105 is connected with the twelfth upper die plate 1110 through a nitrogen spring, the stripper plate 1105 is positioned below the twelfth upper die plate 1110, and the stripper plate 1105 can move along the vertical direction relative to the twelfth upper die plate 1110. Two forming blocks 1106 are fixedly mounted on the bottom surface of the twelfth cope match-plate 1110, two forming blocks 1106 are located below the twelfth cope match-plate 1110, the bottom surfaces of the two forming blocks 1106 are forming surfaces for fitting with the top surfaces at both ends of the beam main plate body of the article (the article needs to be rotated 90 degrees when moving from the eleventh flanging station to the twelfth punching and shaping station so that the beam main plate body of the article is located above, the article is placed at the twelfth punching and shaping station in such a manner that the beam main plate body is in a horizontal state, that is, the article is placed in the twelfth punching and shaping station, the second drawing station, the third trimming and punching station, the fourth flanging station, the fifth punching and trimming station, the sixth flanging station, the seventh forming and flanging station, the eighth flanging station and the ninth flanging station, the article is placed in the same posture), the two forming blocks 1106 and the stripper plate 1105 are located on the same straight line parallel to the first direction, and the stripper plate 1105 is located between the two forming blocks 1106. The window plate is fixedly mounted on the bottom surface of the stripper plate 1105, and the bottom surface of the window plate is a molding surface for being attached to the top surface of the beam main plate body of the workpiece. The twelfth lower die plate 1209 is horizontally arranged, the fixing base 1203 is fixedly installed on the top surface of the twelfth lower die plate 1209, the fixing base 1203 is located above the twelfth lower die plate 1209, the top surface of the fixing base 1203 is a molding surface for being attached to the inner wall surface of the workpiece, and the workpiece is sleeved on the fixing base 1203. The two forming blocks 1204 are fixedly installed on the top surface of the twelfth lower die plate 1209, the two forming blocks 1204 are located above the twelfth lower die plate 1209, the two forming blocks 1204 and the fixing base 1203 are located on the same straight line parallel to the first direction, the fixing base 1203 is located between the two forming blocks 1204, the top surface of the forming block 1204 is a forming surface for being attached to an article, the two forming blocks 1106 are respectively matched with one forming block 1204, and each forming block 1204 is respectively located below one forming block 1106. The fixing base 1203 is located the window board under, and the window board cooperatees with the fixing base 1203, presss from both sides tight finished piece, and drift 1107 is vertical setting, and drift 1107's upper end and twelfth cope match-plate pattern 1110 fixed connection and drift 1107 extend towards the below of twelfth cope match-plate pattern 1110, and window board and stripper 1105 have the through-hole that lets drift 1107 pass. The female die 1205 is fixedly mounted on the fixing seat 1203, the fixing seat 1203 is provided with a groove for accommodating the female die 1205, the female die 1205 is provided with a hole for inserting the lower end of the punch 1107, the female die 1205 is positioned below the second side flanging of the workpiece, and the punch 1107 is matched with the female die 1205 so as to punch a through hole on the second side flanging of the workpiece. The two forming blocks 1204 of the third lower die assembly are matched with the two forming blocks 1106 of the third upper die assembly to shape the two ends of the beam main plate body of the finished product, so that the final vehicle body beam is formed.

As shown in fig. 21, the third transfer mold further includes a third upper mold base 39 and a third lower mold base 40, the third upper mold base 39 and the third lower mold base 40 have a certain length and a certain width, the length directions of the third upper mold base 39 and the third lower mold base 40 are parallel to the second direction, the width directions of the third upper mold base 39 and the third lower mold base 40 are parallel to the first direction, the tenth upper mold base 1108, the eleventh upper mold base 1109 and the twelfth upper mold base 1110 are sequentially arranged along the length direction of the third upper mold base 39, the tenth upper mold base 1108, the eleventh upper mold base 1109 and the twelfth upper mold base 1110 are fixedly connected with the third upper mold base 39, the tenth upper mold base 1108, the eleventh upper mold base 1109 and the twelfth upper mold base 1110 are located below the third upper mold base 39, the third upper mold base 39 drives the tenth upper mold base 1108, the eleventh upper mold base 1109 and the twelfth upper mold base 1110 to move synchronously along the vertical direction, the tenth lower mold base 1207, the eleventh lower mold base 1208 and the twelfth lower mold base 1209 are sequentially arranged along the length direction of the third lower mold base 40, the tenth lower mold base 1208 and the twelfth lower mold base 1209 are fixedly connected with the tenth lower mold base 12040, and the tenth lower mold base 12040 are fixedly connected with the tenth lower mold base 12040, and the tenth lower mold base 120is located below the tenth lower mold base 1208 is located below the third lower mold base 1209.

The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.

Claims

1. The processing equipment for the car body cross beam is characterized by comprising a blanking die, a first transfer die, a second transfer die and a third transfer die which are sequentially arranged according to the processing sequence;

The third transfer die comprises a third upper die assembly and a third lower die assembly, and the third upper die assembly and the third lower die assembly are correspondingly provided with three stations, namely a tenth flanging station, an eleventh flanging station and a twelfth punching and shaping station according to the processing sequence;

the blanking upper die assembly comprises a first upper die plate, a first punch, a second punch, a third punch, a fourth punch, a first stripper plate, a second stripper plate and an insert, wherein the first punch, the second punch and the third punch are arranged on the first upper die plate;

Corresponding to the second drawing station, the first upper die assembly comprises a second upper die plate, a first forming block (701) and a second forming block (702) which are arranged on the second upper die plate, the first lower die assembly comprises a second lower die plate, a third stripper plate (801) and a first fixing seat (802) which are arranged on the second lower die plate, an inner forming block (803) which is arranged on the first fixing seat (802) and matched with the first forming block (701) and the second forming block (702) of the first upper die assembly, and two first outer forming blocks (804) which are arranged on the third stripper plate (801) and matched with the first forming block (701) and the second forming block (702) of the first upper die assembly, and the inner forming block (803) is positioned between the two first outer forming blocks (804);

corresponding to the third trimming and punching station, the first upper die assembly comprises a third upper die plate, a fixed plate (703) arranged on the third upper die plate, a fourth stripper plate (719), a first positioning pin (712) and a fifth punch (713) and eight trimming cutter blocks (704, 705, 706, 707, 708, 709, 710, 711) arranged on the fixed plate (703), the first lower die assembly comprises a third lower die plate, an inner die (805) and two outer dies (806) arranged on the third lower die plate, the fourth stripper plate (719), the first positioning pin (712) and the fifth punch (713) of the first upper die assembly are matched with the inner die (805), and the eight trimming cutter blocks (704, 705, 706, 707, 708, 710, 711) of the first upper die assembly are matched with the two outer dies (806), and the inner die (805) is positioned between the two outer dies (806);

Corresponding to the fourth flanging station, the first upper die assembly comprises a fourth upper die plate, a fifth stripper plate (714) and two second outer forming blocks (716) which are arranged on the fourth upper die plate, and an inner forming block (715) which is arranged on the fifth stripper plate (714), wherein the inner forming block (714) is positioned between the two second outer forming blocks (716), the first lower die assembly comprises a fourth lower die plate, a third forming block (807) and two second positioning pins (808) which are arranged on the fourth lower die plate, and the inner forming block and the two second outer forming blocks (716) of the first upper die assembly are matched with the third forming block (807);

corresponding to the fifth punching and trimming station, the first upper die assembly comprises a fifth upper die plate, a sixth stripper plate (717) arranged on the fifth upper die plate and a fourth forming block (718) arranged on the sixth stripper plate (717), the first lower die assembly comprises a fifth lower die plate and a third female die (809) arranged on the fifth lower die plate, the fourth forming block (718) arranged on the sixth stripper plate (717) is matched with the third female die (809) arranged on the fifth lower die plate, the first transfer die further comprises a first punching device, a second punching device, a first punching device and a second punching device, the first punching device, the second punching device and the second punching device are connected with the first upper die assembly and the first lower die assembly, the first punching device and the second punching device are arranged oppositely, the third female die (809) arranged on the fifth upper die plate is positioned between the first punching device and the second punching device and the fifth punching device is positioned between the first female die (809) and the fifth punching device and the third punching device is positioned between the first punching device and the fifth punching device and the third punching device is positioned between the third punching device and the fifth punching device is positioned between the third punching device and the fifth punching device;

Corresponding to the sixth flanging station, the second upper die assembly comprises a sixth upper die plate, a fifth forming block (901) and a sixth forming block (902) which are arranged on the sixth upper die plate, the second lower die assembly comprises a sixth lower die plate, a seventh stripper plate (1001) which is arranged on the sixth lower die plate, a seventh forming block (1002) which is arranged on the seventh stripper plate (1001) and an eighth forming block (1003) which is arranged on the sixth lower die plate, and the fifth forming block (901) and the sixth forming block (902) of the second upper die assembly are matched with the seventh forming block (1002) and the eighth forming block (1003) of the second lower die assembly;

corresponding to the seventh forming and flanging station, the second upper die assembly comprises a seventh upper die plate, an eighth stripper plate (903) arranged on the seventh upper die plate, two sixth punches (904), a first front forming block (905) and two side forming blocks (906) and a first material pressing plate (907) arranged on the eighth stripper plate (903), the second lower die assembly comprises a seventh lower die plate and a second front forming block (1004) and a rear forming block (1005) arranged on the seventh lower die plate, the second front forming block (1004) of the second lower die assembly is positioned below the first front forming block (905) of the second upper die assembly and is matched with the first front forming block (905) and the second front forming block (1004), and the rear forming block (1005) is positioned below the first material pressing plate (907) and the two side forming blocks (906) and is matched with the first material pressing plate (1005);

Corresponding to the eighth flanging station, the second upper die assembly comprises an eighth upper die plate, a ninth stripper plate (908) arranged on the eighth upper die plate and a second pressing plate (909) arranged on the ninth stripper plate (908), the second lower die assembly comprises an eighth lower die plate and a ninth forming block (1006) arranged on the eighth lower die plate and matched with the second pressing plate (909), the second transfer die further comprises a first flanging device and a second flanging device, the first flanging device and the second flanging device are connected with the second upper die assembly and the second lower die assembly and are oppositely arranged, and the ninth forming block (1006) is positioned between the first flanging device and the second flanging device;

corresponding to the ninth flanging station, the second upper die assembly comprises a ninth upper die plate and a tenth forming block (910) arranged on the ninth upper die plate, the second lower die assembly comprises a ninth lower die plate, a tenth stripper plate (1007) arranged on the ninth lower die plate, a rear forming block (1008) arranged on the tenth stripper plate (1007) and a third front forming block (1009) arranged on the ninth lower die plate, and the tenth forming block (910) of the second upper die assembly is matched with the rear forming block (1008) and the third front forming block (1009) of the second lower die assembly;

Corresponding to the tenth flanging station, the third upper die assembly comprises a tenth upper die plate, a third material pressing plate (1101) and a rear forming block (1102) which are arranged on the tenth upper die plate, and two fourth front forming blocks (1103) which are arranged on the third material pressing plate (1101), the third lower die assembly comprises a tenth lower die plate and an eleventh forming block (1201) which is arranged on the tenth lower die plate, and the eleventh forming block (1201) is matched with the rear forming block (1102) and the two fourth front forming blocks (1103);

corresponding to the eleventh flanging station, the third upper die assembly comprises an eleventh upper die plate and a fourth pressing plate (1104) arranged on the eleventh upper die plate, the third lower die assembly comprises an eleventh lower die plate and a twelfth forming block (1202) arranged on the eleventh lower die plate, the third transfer die further comprises a third flanging device, the third flanging device is connected with the third upper die assembly and the third lower die assembly, and the twelfth forming block (1202) is matched with the third flanging device and the fourth pressing plate (1104);

corresponding to the twelfth punching and shaping station, the third upper die assembly comprises a twelfth upper die plate, an eleventh stripper plate (1105) arranged on the twelfth upper die plate, two thirteenth forming blocks (1106) and a seventh punch (1107) and a window plate arranged on the eleventh stripper plate (1105), the third lower die assembly comprises a twelfth lower die plate, a second fixing seat (1203) and two fourteenth forming blocks (1204) arranged on the twelfth lower die plate and a fourth female die (1205) arranged on the second fixing seat (1203), the two fourteenth forming blocks (1204) of the third lower die assembly are matched with the two thirteenth forming blocks (1106) of the third upper die assembly, the seventh punch (1107) is matched with the fourth female die (1205), and the second fixing seat (1203) is located between the two fourteenth forming blocks (1204).

2. The sedan body cross beam processing apparatus of claim 1, wherein the first punch, the second punch, and the third punch are on a same straight line parallel to a first direction, the first stripper plate and the second stripper plate are on a same straight line parallel to a second direction, the first direction and the second direction are both horizontal directions and the first direction and the second direction are perpendicular, and the blank is moved in the second direction on the blanking die during processing.

3. The sedan body cross beam processing apparatus of claim 1, wherein the first punch, the second punch, and the third punch are all round punches, the first punch, the second punch, and the third punch are vertically disposed on the first upper die plate, the second punch is disposed in two, the two second punches are disposed between the first punch and the third punch, and the first punch and the third punch are disposed in one respectively.