CN117583470A - A multi-station stamping mold and feeding device for the production of flat-top chain plates - Google Patents

Abstract

The invention discloses a multi-station stamping mold and a feeding device for the production of flat-top chain plates, and belongs to the technical field of mechanical processing. The invention includes a stamping die upper die, a stamping die lower die and a feeding device. Wherein, the feeding device is arranged on the left side of the upper mold and the lower mold of the stamping die. The feeding device includes two parts: feeding and pushing, which are linked to achieve continuous feeding. Its working principle is: the punching station, pre-bending station, rolling station and scrap punching station are set up in the stamping die in sequence from the feed end. During stamping, the automatic feeding device is controlled by the PLC to store the material in the stamping die. The materials inside are sent to the punching station and pre-bending station in sequence, and then the workpiece is pushed to the rolling station and scrap punching station by the pushing device. Blanking and pre-bending can be completed simultaneously in one punch stroke. The four-station stamping process of bending, rolling and scrap punching can effectively improve the stamping processing efficiency and improve the workpiece yield rate.

Description

A multi-station stamping mold and feeding device for the production of flat-top chain plates

Technical field

The invention belongs to the field of mechanical processing technology, and specifically relates to a multi-station stamping mold and a feeding device used for the production of flat-top chain plates.

Background technique

The flat-top chain plate is an important part of the flat-top chain. Its stamping process generally requires four processes: punching, pre-bending, rounding and scrap punching. At present, the processing of flat-top chains often adopts a single-station stamping mode. This stamping method requires manual loading and unloading of each station, which seriously affects the efficiency and accuracy of flat-top chain plate processing and poses great safety risks. The invention provides a multi-station stamping mold and a feeding device for the production of flat-top chain plates. The multi-station stamping mold is composed of an upper stamping mold and a lower stamping mold. The feeding device includes two parts: feeding and pushing. part, the two are linked to achieve continuous feeding, which can realize automatic loading and complete the stamping processing of the four stations of punching, pre-bending, rolling, and scrap punching of the material in one stroke of the punch, which can effectively improve Stamping processing efficiency and improve workpiece yield rate.

Contents of the invention

(1) Solve problems

In order to solve the problems of low efficiency and poor accuracy of existing flat-top chain production technology, the present invention proposes a multi-station stamping mold and feeding device for the production of flat-top chain plates, so as to realize automatic loading and in one stroke of the punch press. Complete the stamping processing of the four stations of blanking, pre-bending, rounding and scrap punching of the material parts, effectively improving the stamping processing efficiency and improving the workpiece yield rate.

(2) Technical solutions

In order to achieve the above object, the present invention provides the following technical solution: a multi-station stamping mold and feeding device for flat-top chain plate production, including an upper stamping mold, a lower stamping mold and a feeding device. Wherein, the feeding device is arranged on the left side of the upper die and the lower die of the stamping die.

Furthermore, the upper die of the stamping die includes an upper die base, an upper pad, an upper template, a residual material cutting device, a punching upper die, a pre-bending front upper die, a pre-bending rear upper die, and a front rolling drive. block, rear rolling drive block, left scrap punching die, right scrap punching die, guide post, upper limit post, punching nail, punching nail buffer spring; the left side of the upper die base is equipped with a residual material removal cylinder installation slot. There are guide post mounting holes, screw mounting holes, and upper limit post mounting holes on the surface. There are two mounting slots for the residual material removal cylinder, which are symmetrically arranged on the left and front and rear ends of the upper mold base; there are four guide post mounting holes. , respectively symmetrically arranged around the upper mold base; there are sixteen screw mounting holes, evenly distributed on the surface of the upper mold base; there are two upper limit column mounting holes, symmetrically arranged in the middle and front of the upper mold base both sides;

Furthermore, the left end of the upper template is provided with a notch for installing the remaining material removal device and a notch for installing the punching upper die. There is a cylinder piston rod through hole in the front, and a pre-bending rear upper die installation hole and a pre-folded upper die installation hole are opened in the middle. Bending front upper die mounting hole, rear rolling drive block mounting hole, front rolling drive block mounting hole, left scrap punching die mounting hole, right scrap punching die mounting hole, punching nail mounting hole, punching nail pressing block, all The cylinder piston rod through hole is internally connected with a residual material removal device guide rod;

Furthermore, the remaining material cutting device includes a driving block, a wedge angle of the remaining material cutting device, a return spring of the remaining material cutting device, a remaining material cutting mold, a through hole, a cylinder piston rod, and a cylinder body. The driving block is 45 degrees. There are two bevels in total, which are fixedly connected to the threaded end of the cylinder piston rod through the threaded holes on the side thereof; there are two wedge angles of the remaining material removal device, which are located on both sides of the remaining material removal mold, and the There is a through hole on the wedge angle of the remaining material cutting device; there are two return springs of the remaining material cutting device and they are empty on the guide rod of the remaining material cutting device; there are two cylinder piston rods and they are placed on the cylinder piston. Inside the rod through hole; there are two cylinders and they are symmetrically arranged in the installation groove of the remaining material removal cylinder, and the remaining material removal device is installed on the guide rod of the remaining material removal device through the through hole;

Furthermore, the punching upper mold is a polygonal column cut according to the outline of the workpiece, and the pre-bending front upper mold and the pre-bending upper mold are two rectangular blocks of different sizes, with folding holes respectively arranged at the bottoms. The contour curved surface required for bending parts, the bottoms of the front rolling drive block and the rear rolling drive block are provided with a 45-degree inclined plane;

Furthermore, the upper mold base, upper backing plate, and upper template are connected by screws in sequence, and the remaining material cutting device, punching upper mold, pre-bending front upper mold, pre-bending rear upper mold, and front roll The round driving block, the rear rolling round driving block, the left waste material punching die, the right waste material punching die, and the punching nails are sequentially installed in the installation notch of the remaining material cutting device, the installation notch of the punching upper die, and the pre-bending front upper part. Die mounting hole, pre-bending rear upper die mounting hole, front rolling drive block mounting hole, rear rolling drive block mounting hole, left scrap punching die mounting hole, right scrap punching die mounting hole, punching nail mounting hole , and all adopt interference fit; the punching nail buffer spring is sleeved on the punching nail and fixed on the lower surface of the upper template through welding, and a total of four guide posts are installed in the guide post mounting holes. , and an interference fit is used between the guide post and the guide post installation hole, and there are two upper limit post installation holes respectively installed in the upper limit post installation hole.

Furthermore, the lower die of the stamping die includes a lower die base, a workpiece pressure plate, a stamping buffer spring, a guide plate, a lower template, a lower limiting column, a sleeve, and a pushing cylinder;

Furthermore, the lower mold base includes a pusher cylinder slot, a pusher plate installation port, a punching waste outlet, a pusher plate moving channel, a rolling rebound spring slot, a sleeve installation hole, and a lower limit column installation hole. Pushing device, in which there are two pushing cylinder slots symmetrically arranged inside the left end of the lower mold base; the punching waste outlet is a penetrating multi-rib hole; the moving channel of the pushing plate is a rectangular notch and is arranged on the lower die base The upper surface of the mold base; there are four sleeve mounting holes and they are evenly arranged around the lower mold base; there are two lower limit column mounting holes and they are symmetrically arranged on the front and rear sides of the middle part of the lower mold base; the pusher The device includes a hook plate, a torsion spring, and a push plate. The hook plate is a pair of J-shaped symmetrical plates with a limit block at the bottom. The pin is connected to the push plate through two through holes at the rear end. The torsion spring is empty on the pin.

Furthermore, the left side of the workpiece pressing plate is provided with punching holes and punching upper die holes, and five punching buffer spring mounting holes are opened on its upper surface, and there are pre-bending front upper die square holes and pre-bending upper die holes in the middle. After bending, there is a left scrap punching die square hole and a right scrap punching die square hole on the right side of the upper die square hole after bending. A total of five stamping buffer springs are placed in the stamping buffer spring mounting holes.

Furthermore, the left end of the guide plate has a notch with the same thickness as the workpiece, which is used for guiding when feeding the workpiece. In the middle of the guide plate, there is a square hole for the remaining material cutting die and a square hole for the punching upper die. There are through holes in the upper die before pre-bending and through holes in the upper die after pre-bending on the side. The guide plate is fixedly connected to the workpiece pressing plate through screws.

Furthermore, the left side of the lower template is provided with a lower template punching hole and a lower punching die. In the middle, there is a hook plate moving channel, a pre-bending lower die, and a pre-bending lower die. On the right The side opening has a left scrap punching hole, a right scrap punching hole, a rolling mold guide rail, a rolling rebound spring, a rolling slider, a guide rail slider, a rolling slider buffer spring, a slider limit plate, a spring groove, and a bottom The template has multiple holes; there are two punching holes in the lower template, which are respectively arranged on the left and right sides of the lower punching die. There are two hook plate moving channels, and the hook plate moves through the hook plate. The channel passes through the lower template, and the top of the hook plate is higher than the height of the workpiece on the surface of the lower template. There are two guide rails of the rolling round mold and they are fixedly connected to the lower mold base through screws. There are two round rebound springs in total and are symmetrically arranged in the rounding rebound spring groove; the middle part of the rounding slider is equipped with an arc-shaped rounding mold made according to the rounding shape of the workpiece, and a 45-degree rounding die is provided at the top The inclined plane has a rebound spring stop and a rebound spring guide rod at the bottom. The rounded rebound springs are respectively empty on the rebound spring guide rods. There are two rounded slide blocks and they are symmetrically arranged on There are four guide rail sliders on the front and rear sides of the rounding die guide rail, two of which are arranged in a group on the left and right sides of the rounding die guide rail, and they form a sliding connection; the rounding slider and the rounding die guide rail are The guide rail slider is fixed with screws; the bottom of the slider limit plate is provided with two rectangular notches for placing the rolling mold guide rail, and a guide post is provided in front for installing the rolling slider buffer spring, and There are two slider limit plates symmetrically installed on the front and rear sides of the rolling mold guide rail, and two symmetrical semicircular holes are provided in the middle of the spring groove for placing the rolling rebound spring. There are rectangular through holes on both sides of the bottom for passing the guide rail of the rolling die, and the spring groove is fixedly connected to the lower die base through screws;

Furthermore, there are two lower limiting posts and they are respectively installed in the lower limiting post mounting holes. There are four sleeves and they are respectively installed in the sleeve mounting holes. The sleeve and the sleeve An interference fit is used between the cylinder mounting holes, and a clearance fit is used between the guide post and the sleeve in the claim. There are two pusher cylinders and they are respectively placed in the pusher cylinder grooves, and through their piston rods The threaded ends are firmly connected to the threaded holes on both wings of the push plate.

Furthermore, the feeding device includes a left baffle of a storage box, a right baffle of a storage box, a feeding box, and a screw module. There is a rectangular notch on the left side of the feeding box that runs through the upper half of the upper surface. There is a blanking slot; a feeding channel is opened on the upper surface of the rectangular slot; the screw module includes a feeding bottom plate, a motor, a motor base, a bearing support component, a screw, a feeding guide rail, a feeding guide rail slider, and a feeding block , screw nut, there are two bearing support components, located at the left and right ends of the screw module, the screw and the motor are connected through a coupling, there are two feeding guide rails, and they are symmetrical Arranged on both sides of the screw, the motor base, bearing support assembly, and feeding guide rail are all fixedly connected to the feeding bottom plate through screws. There are two feeding rail sliders, and they are respectively arranged on the feeding guide rail. on the screw, the two form a sliding connection; the screw nut is arranged on the screw, the two form a sliding connection, the feeding block is fixedly connected to the screw nut through screws, and the feeding block base of the feeding block Fixedly connected to the feeding guide rail slide block, a rectangular push plate is provided on the top of the feeding block, and the rectangular push plate forms a sliding connection with the rectangular notch; when the material parts are sequentially dropped from the blanking notch When reaching the upper surface of the rectangular notch, the rectangular push plate pushes the material to the required workstation driven by the motor, screw, and screw nut.

(3) Beneficial effects

Compared with the existing technology, the present invention provides a multi-station stamping mold and feeding device for flat-top chain plate production, which has the following beneficial effects:

(1) The present invention provides a multi-station stamping mold and a feeding device for the production of flat-top chain plates. The multi-station stamping mold is provided with punching nails for positioning, and has higher positioning accuracy than ordinary robots. , which prevents non-standard workpiece forming due to inaccurate feeding position.

(2) The present invention provides a multi-station stamping mold and a feeding device for the production of flat-top chain plates. The feeding device uses a PLC-controlled screw module to feed the material, and the cylinder pushes the material. The two are linked to achieve continuous feeding. , compared with the robot clamping and feeding device, the feeding device has a compact structure and the feeding efficiency is much higher than that of the robot clamping and feeding device, which helps to further improve the production efficiency of the flat-top chain plate.

(3) The present invention provides a multi-station stamping mold and a feeding device for the production of flat-top chain plates. The feeding part of the feeding device is arranged outside the stamping mold, and the pushing part is embedded in the lower mold base of the stamping mold. Internally, the entire stamping production line occupies a small area and has low requirements for site layout.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic structural diagram of the upper die of the stamping die of the present invention;

Figure 3 is a schematic structural diagram of the upper mold base of the present invention;

Figure 4 is a schematic structural diagram of the upper template of the present invention;

Figure 5 is a schematic structural diagram of the remaining material removal device of the present invention;

Figure 6 is a schematic structural diagram of the lower die of the stamping die of the present invention;

Figure 7 is a schematic structural diagram of the lower mold base of the present invention;

Figure 8 is a schematic structural diagram of the pushing device of the present invention;

Figure 9 is a schematic structural diagram of the pressure plate of the present invention;

Figure 10 is a schematic structural diagram of the guide plate of the present invention;

Figure 11 is a schematic structural diagram of the lower template of the present invention;

Figure 12 is a schematic structural diagram of the rolling slide block of the present invention;

Figure 13 is a schematic structural diagram of the spring groove of the present invention;

Figure 14 is a schematic structural diagram of the feeding device of the present invention;

Figure 15 is a schematic structural diagram of the feeding box of the present invention;

Figure 16 is a schematic structural diagram of the screw module of the present invention;

Figure 17 is a schematic structural diagram of the feeding block of the present invention;

Figure 18 is a schematic diagram of the shape changes of the workpiece after the die stamping processing at each station of the present invention.

In the picture: 1. Upper mold of stamping mold; 2. Lower mold of stamping mold; 3. Feeding device; 4. Upper mold base; 5. Upper backing plate; 6. Upper template; 7. Remaining material cutting device; 8. Blanking Upper mold; 9. Pre-bending front upper mold; 10. Pre-bending rear upper mold; 11. Front rolling drive block; 12. Rear rolling drive block; 13. Left scrap punching die; 14. Right scrap punching Cutting mold; 15. Guide post; 16. Upper limit post; 17. Punching nail; 18. Punching nail buffer spring; 0401. Cylinder mounting slot after remaining material removal; 0402. Guide pillar mounting hole; 0403. Screw mounting hole; 0404. Upper limit column mounting hole; 0601, remaining material removal device installation notch; 0602, remaining material removal device guide rod; 0603, cylinder piston rod through hole; 0604, punching upper die installation notch; 0605, pre-bending and then upper Mold mounting hole; 0606, pre-bending front upper die mounting hole; 0607, rear rolling drive block mounting hole; 0608, front rolling drive block mounting hole; 0609, left scrap punching die mounting hole; 0610, right scrap punching Cutting die mounting hole; 0611, punching nail mounting hole; 0612, punching nail pressing block; 0701, driving block; 0702, residual material cutting device wedge angle; 0703, residual material cutting device return spring; 0704, residual material cutting mold; 0705. Through hole; 0706. Cylinder piston rod; 0707. Cylinder body; 19. Lower die base; 20. Workpiece pressure plate; 21. Stamping buffer spring; 22. Guide plate; 23. Lower template; 24. Lower limit column; 25 , sleeve; 26. Pushing cylinder; 1901. Pushing cylinder groove; 1902. Pushing plate installation port; 1903. Blanking waste outlet; 1904. Pushing plate moving channel; 1905. Rounded rebound spring groove; 1906 , sleeve mounting hole; 1907, lower limit column mounting hole; 1908, pushing device; 19081, hook plate; 19082, torsion spring; 19083, pushing plate; 2001, punching nail hole; 2002, punching upper die hole; 2003, stamping buffer spring mounting hole; 2004, square hole in the upper die before pre-bending; 2005, square hole in the upper die after pre-bending; 2006, square hole in the left scrap punching die; 2007, square hole in the right scrap punching die; 2201. Notch; 2202. Square hole for cutting off the remaining material; 2203. Square hole for punching the upper mold; 2204. Through hole for the upper mold before pre-bending; 2205. Through hole for the upper mold after pre-bending; 2301. Punch hole for nails ; 2302, punching lower die; 2303, hook plate movement channel; 2304, lower die before pre-bending; 2305, lower die after pre-bending; 2306, left scrap punching hole; 2307, right scrap punching hole; 2308. Rounding die guide rail; 2309. Rounding rebound spring; 2310. Rounding slider; 2311. Guide rail slider; 2312. Rounding slider buffer spring; 2313. Slider limit plate; 2314. Spring groove; 2315. The lower template has multi-ribbed holes; 23101, arc-shaped rolling mold; 23102, inclined plane; 23103, rebound spring stop; 23104, rebound spring guide rod; 23141, semicircular hole; 23142, rectangular through hole; 27, Storage box left baffle; 28. Storage box right baffle; 29. Feeding box; 30. Screw module; 2901. Rectangular notch; 2902. Blanking notch; 2903. Feeding channel; 3001. Feeding bottom plate ; 3002, motor; 3003, motor base; 3004, bearing support assembly; 3005, lead screw; 3006, feeding guide rail; 3007, feeding guide rail slider; 3008, feeding block; 30081, feeding block base; 30082, rectangular push plate; 3009. Screw nut.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1

Please refer to Figure 1, Figure 2 and Figure 6. The present invention provides a multi-station stamping mold and a feeding device for the production of flat-top chain plates. The multi-station stamping mold is composed of an upper mold 1 and a feeding device of the stamping mold. The stamping die is composed of a lower die 2. The feeding device 3 is arranged on the left side of the stamping die upper die 1 and the stamping die lower die 2. The feeding device 3 includes two parts: feeding and pushing. It can be used in one stroke of the punch press. The four-station stamping process of punching, pre-bending, rounding and scrap punching of the flat-top chain plate workpiece is completed.

The upper die 1 of the stamping die includes an upper die base 4, an upper backing plate 5 and an upper template 6 which are connected by screws in sequence. The upper template 6 is equipped with a residual material cutting device 7, a punching upper die 8, and a pre-folding die. Front bending upper mold 9, pre-bending rear upper mold 10, front rolling driving block 11, rear rolling driving block 12, left scrap punching die 13, right scrap punching die 14, guide column 15, upper limit column 16 , punching nail 17 and punching nail buffer spring 18;

The lower die 2 of the stamping die includes a lower die base 19, and a workpiece pressing plate 20, a guide plate 22 and a lower template 23 are installed on the lower die base 19;

The upper die 1 of the stamping die cooperates with the lower die 2 of the stamping die to complete the stamping processing of the four stations of punching, pre-bending, rounding and scrap punching of the material in one stroke.

Specifically, as shown in Figure 3, the left side of the upper mold base 4 is provided with a residual material removal cylinder mounting slot 0401, and the surface is provided with a guide post mounting hole 0402, a screw mounting hole 0403 and an upper limit post mounting hole 0404, in which the remaining material is There are two cut-out cylinder mounting slots 0401, which are symmetrically arranged at the left and front and rear ends of the upper mold base 4; there are four guide post mounting holes 0402, which are symmetrically arranged around the upper mold base 4; there are two screw mounting holes 0403 Sixteen, evenly distributed on the surface of the upper mold base 4; there are two upper limit column mounting holes 0404, symmetrically arranged on the front and rear sides of the middle of the upper mold base 4;

Specifically, as shown in Figure 4, the left end of the upper template 6 is provided with a notch 0601 for the installation of the remaining material removal device and a notch 0604 for the installation of the punching upper die. There is a cylinder piston rod through hole 0603 in the front, and a pre-folded hole 0603 in the middle. Bending upper die mounting hole 0605, pre-bending front upper die mounting hole 0606, rear rolling drive block mounting hole 0607, front rolling drive block mounting hole 0608, left scrap punching die mounting hole 0609, right scrap punching die Mounting hole 0610, punching nail mounting hole 0611 and punching nail pressing block 0612. The cylinder piston rod through hole 0603 is internally connected with a residual material removal device guide rod 0602.

Specifically, as shown in Figure 5, the remaining material cutting device 7 includes a driving block 0701, a remaining material cutting device wedge angle 0702, a remaining material cutting device return spring 0703, a remaining material cutting mold 0704, a through hole 0705, and a cylinder piston. Rod 0706 and cylinder block 0707, of which the driving block 0701 is a 45-degree inclined plane, there are two in total, and it is fixedly connected to the threaded end of the cylinder piston rod 0706 through the threaded hole on its side; there are two wedge angles 0702 in the remaining material removal device. are respectively located on both sides of the remaining material removal mold 0704, and there is a through hole 0705 on the wedge corner 0702 of the remaining material removal device; there are two return springs 0703 of the remaining material removal device, and they are empty in the remaining material removal device. On the guide rod 0602 of the material removal device; there are two cylinder piston rods 0706 and are placed inside the cylinder piston rod through hole 0603; there are two cylinders 0707 and they are symmetrically arranged in the installation groove 0401 of the remaining material removal cylinder, so The remaining material cutting device 7 is installed on the guide rod 0602 of the remaining material cutting device through the through hole 0705.

The punching upper mold 8 is a polygonal column cut according to the outline of the workpiece. The pre-bending upper mold 9 and the pre-bending upper mold 10 are two rectangular blocks of different sizes, with bending holes at the bottom. The contour curved surface required for the part is provided with a 45-degree inclined plane at the bottom of the front rolling driving block 11 and the rear rolling driving block 12.

The remaining material cutting device 7, punching upper die 8, pre-bending front upper die 9, pre-bending rear upper die 10, front rolling driving block 11, rear rolling driving block 12, left scrap punching die 13 , the right scrap punching die 14, and the punching nail 17 are installed in sequence in the remaining material removal device installation notch 0601, the punching upper die installation notch 0604, the pre-bending front upper die mounting hole 0606, and the pre-bending rear upper die mounting hole. 0605, front rolling drive block mounting hole 0608, rear rolling drive block mounting hole 0607, left scrap punching die mounting hole 0609, right scrap punching die mounting hole 0610 and punching nail mounting hole 0611, and all use interference Cooperate; the punching nail buffer spring 18 is placed on the punching nail 17 and is fixed on the lower surface of the upper template 6 by welding, a total of four guide posts 15 are installed in the guide post mounting holes 0402, and the An interference fit is used between the guide post 15 and the guide post installation hole 0402, and there are two upper limit posts 16 respectively installed in the upper limit post installation holes 0404.

In this embodiment, as shown in Figures 7 and 8, the lower mold base 19 includes a pushing cylinder slot 1901, a pushing plate installation port 1902, a punching waste outlet 1903, a pushing plate moving channel 1904, a rolling Rebound spring slot 1905, sleeve mounting hole 1906, lower limit column mounting hole 1907 and pushing device 1908. There are two pushing cylinder slots 1901 symmetrically arranged inside the left end of the lower die base 19; punching waste outlet 1903 It is a penetrating polygonal hole; the pushing plate moving channel 1904 is a rectangular notch and is provided on the upper surface of the lower mold base 19; there are four sleeve mounting holes 1906 and are evenly arranged around the lower mold base 19; There are two lower limit column mounting holes 1907 and they are symmetrically arranged on the front and rear sides of the middle part of the lower mold base 19; the pushing device 1908 includes a hook plate 19081, a torsion spring 19082, and a pushing plate 19083. The hook plate 19081 It is a pair of J-shaped symmetrical plates with a limit block at the bottom. The push plate 19083 is fixedly connected to the pushing plate 19083 by a pin through the two through holes at the rear end. The torsion spring 19082 is sleeved on the pin.

Specifically, as shown in Figure 9, the left side of the workpiece pressing plate 20 is provided with a punching nail hole 2001 and a punching upper die hole 2002. There are five punching buffer spring mounting holes 2003 on its upper surface, and there are preset holes 2003 in the middle. There is a square hole 2004 in the upper die before bending and a square hole 2005 in the upper die after pre-bending. There are a left scrap punching die square hole 2006 and a right scrap punching die square hole 2007 on the right side. There are five stamping buffer springs 21 respectively. Placed in the stamped buffer spring mounting hole 2003;

Specifically, as shown in Figure 10, the left end of the guide plate 22 has a notch 2201 with the same thickness as the workpiece, which is used for guiding when feeding the workpiece. The guide plate 22 has a square hole 2202 for the remaining material removal mold in the middle. The square hole 2203 of the upper die is punched, and a pre-bending front upper die through hole 2204 and a pre-bending rear upper die through hole 2205 are opened on the right side. The guide plate 22 is fixedly connected to the workpiece pressing plate 20 through screws.

Specifically, as shown in Figures 11 to 13, the left side of the lower template 23 is provided with a lower template punching hole 2301 and a lower punching die 2302, and in the middle is a hook plate moving channel 2303, a pre-bending front lower The mold 2304 and the pre-bent lower mold 2305 have a left scrap punching hole 2306, a right scrap punching hole 2307, a rounding die guide 2308, a rounding rebound spring 2309, a rounding slide 2310, and a guide rail on the right side. Slider 2311, rounded slider buffer spring 2312, slider limit plate 2313, spring groove 2314 and lower template multi-ribbed hole 2315; there are two punching holes 2301 in the lower template, which are respectively provided in the lower punching die. There are two hook plate moving channels 2303 on the left and right sides of 2302. The hook plate 19081 passes through the lower template 23 through the hook plate moving channel 2303, and the top of the hook plate 19081 is higher than the lower template 23. The height of the surface is one workpiece. There are two rounding die guide rails 2308 and they are fixedly connected to the lower die base 19 through screws. There are two rounding rebound springs 2309 and they are symmetrically arranged on the rounding rebound spring. In the spring groove 1905; the middle part of the rolling slider 2310 is provided with an arc-shaped rolling die 23101 made according to the rounding shape of the workpiece, a 45-degree bevel 23102 is provided at the top, and a rebound spring stop 23103 is provided at the bottom. The rebound spring guide rod 23104 and the rounding rebound spring 2309 are respectively empty on the rebound spring guide rod 23104. There are two rounding slide blocks 2310 and are symmetrically arranged on the rounding mold guide rail 2308. On the front and rear sides, there are four guide rail sliders 2311, two of which are arranged in a group on the left and right sides of the rolling mold guide rail 2308, and they form a sliding connection; the rolling slider 2310 and the guide rail slider 2311 Fastened by screws; the bottom of the slider limit plate 2316 is provided with two rectangular notches for placing the rolling mold guide rail 2311, and a guide post is provided on the front for installing the rolling slider buffer spring 2312, and the slider There are two limiting plates 2313 symmetrically installed on the front and rear sides of the round rolling mold guide rail 2311. There are two symmetrical semicircular holes 23141 in the middle of the spring groove 2314 for placing the round rolling rebound spring 2309. , there are rectangular through holes 23142 on both sides of the bottom for passing the rolling mold guide rail 2308, and the spring groove 2314 is fixedly connected to the lower mold base 19 through screws.

The lower die 2 of the stamping die also includes a lower limiting column 24, a sleeve 25 and a pushing cylinder 26. There are two lower limiting columns 24 and they are respectively installed in the lower limiting column mounting holes 1907. There are four sleeves 25. And are respectively installed in the sleeve mounting hole 1906. An interference fit is used between the sleeve 25 and the sleeve mounting hole 1906. A clearance fit is used between the guide post 15 and the sleeve 25. The pushing cylinder 26 There are two, and they are respectively placed in the pushing cylinder slot 1901, and are firmly connected to the threaded holes on both wings of the pushing plate 19083 through the threaded ends of their piston rods.

Example 2

On the basis of Embodiment 1, as shown in Figures 14 to 17, the feeding device 3 includes a storage box left baffle 27, a storage box right baffle 28, a feeding box 29 and a screw module 30, so There is a rectangular slot 2901 on the left side of the feeding box 29 that runs through its upper half, and a blanking slot 2902 is opened on the upper surface; a feeding channel 2903 is opened on the upper surface of the rectangular slot 2901; the screw module 30 includes Feeding bottom plate 3001, motor 3002, motor base 3003, bearing support assembly 3004, screw 3005, feeding guide rail 3006, feeding guide rail slider 3007, feeding block 3008 and screw nut 3009. There are two bearing support assemblies 3004, respectively. Located at the left and right ends of the screw module 30, the screw 3005 and the motor 3002 are connected through a coupling. There are two feeding guide rails 3006, and they are symmetrically arranged on both sides of the screw 3005. The motor base 3003, the bearing support assembly 3004 and the feeding guide rail 3006 are all fixedly connected to the feeding bottom plate 3001 through screws. There are two feeding rail sliders 3007, and they are respectively arranged on the feeding rail 3006. Forming a sliding connection; the screw nut 3009 is arranged on the screw 3005, and the two form a sliding connection. The feeding block 3008 is fixedly connected to the screw nut 3009 through screws. The feeding block of the feeding block 3008 The base 30081 is fixedly connected to the feeding guide rail slide block 3007. The top of the feeding block 3008 is provided with a rectangular push plate 30082. The rectangular push plate 30082 forms a sliding connection with the rectangular notch 2901; when the material is removed from the When the blanking notch 2902 sequentially falls onto the upper surface of the rectangular notch 2901, the rectangular push plate 30082 pushes the material to the required workstation driven by the motor 3002, screw 3005, and screw nut 3009. .

Example 3

Please refer to Figures 1 to 18. The specific working steps of the multi-station stamping mold and feeding device of the present invention are as follows:

1) First, the PLC controls the screw module 30 in the feeding device 3 to send the initial material 31 (shown as a in Figure 18) that falls on the upper surface of the rectangular slot 2901 to the remaining material removal mold. The left end of square hole 2202.

2) The PLC continues to control the screw module 30 to send the initial material 31 to the right end of the multi-ribbed hole 2315 of the lower template, and then the punch press punches downward. As the punch press moves downward, the punching upper die 8 and punching die The nails 17 pass through the punching upper die hole 2002 and the punching nail hole 2001 respectively and contact the initial material 31. The workpiece pressing plate 20 gradually compresses the initial material 31. At this time, the punching upper The die 8 and the punching nails 17 pass through the punching holes 2301 of the lower punching die 2302 and the lower template respectively, and then the initial material piece 31 is punched into a punching piece 32 (shown as b in Figure 18). The cutting waste falls into the punching waste outlet 1903 in the lower die base 19 . Then the punch press moves upward, and the workpiece pressing plate 20 relaxes the punching piece 32 .

3) During the first return trip of the punch, the PLC continues to control the screw module 30 to push a punching piece 32 to the right by one station, and then the punch punches downward. As the punch moves downward, the punching part 32 is punched out. Mold 8, punching nail 17 and the pre-bending upper mold 9 and pre-bending upper mold 10 respectively pass through the punching upper mold hole 2002, the punching nail hole 2001 and the pre-bending front upper mold square hole 2004. , the square hole 2005 of the upper die after pre-bending, and contacts a punching part 32, the workpiece pressing plate 20 gradually presses the punching part 32, the punching upper die 8 and the pre-bending The front upper mold 9 and the pre-bending rear upper mold 10 pass through the punching lower mold 2302, the lower template punching nail hole 2301, the pre-bending front lower mold 2304, and the pre-bending lower mold 2305. The punch 32 is pre-bent. At this time, the first punch part 32 is punched into the second punch part 33 (shown as c in Figure 18), and the punching waste chips fall into the punching part in the lower die base 19. In the waste material outlet 1903, the punch press then moves upward, and the workpiece pressing plate 20 relaxes the second punching material 33.

4) During the second return trip of the punch, the PLC controls the screw module 30 to return to the initial position, the pushing cylinder 26 is started, and the pushing device 1908 in the lower die base 19 is pushed, and the pushing device 1908 is pushed through the hook. The plate 19081 moves to the right in the hook plate moving channel 2303 in the middle of the lower template 23, and the second punching piece 33 is pushed to the right by the length of one station and then returned to the initial position, and then the punch press punches downward. Moving downward, the punching upper die 8, the punching nail 17, the pre-bending front upper die 9, and the pre-bending rear upper die 10 contact the second punching piece 33, and the front rolling driving block 11 and The 45-degree bevel at the bottom of the rear rolling drive block 12 moves downward with the punch, and begins to contact the 45-degree bevel at the top of the rolling slider 2310 that is symmetrically placed on the front and rear sides of the rolling die guide rail 2308. 23102, the front rolling driving block 11 and the rear rolling driving block 12 push the rolling slider 2310 to move horizontally toward the middle, and then the arc-shaped rolling die 23101 in the rolling slider 2310 contacts the second punching piece 33, and then the rolling slider 2310 continues to move horizontally toward the middle to roll the pre-bent part of the second punching piece 33. At this time, the second punching piece 33 is punched into For the third punching material 34 (shown as d in Figure 18), the punching waste chips fall into the punching waste outlet 1903 in the lower die base 19, and the secondary stamping material 33 is punched into the third punching material 34. The punch then moves upward.

5) During the third return trip of the punch, the PLC controls the screw module 30 to send the second initial piece of material 31 to the left end of the square hole 2202 of the remaining material removal mold, and the pushing cylinder 26 starts, Push the three punching parts 34 to the right by the length of one station and then return to the initial position. The cylinder in the remaining material cutting device 7 is started, and the cylinder piston rod 0706 moves forward, pushing the remaining material cutting device 7 The driving block 0701 ejects the remaining material cutting die 0704, and then the punch punches downward. As the punch moves downward, the remaining material cutting die 0704, the punching upper die 8, the punching nail 17 and the pre-bending front The upper mold 9 and the pre-bent upper mold 10 contact the three punching parts 34, and the rolling slider 2310 is pushed by the front rolling driving block 11 and the rear rolling driving block 12 to move the three punching parts horizontally toward the middle. The second pre-bent part of the part 34 is rolled and formed, and the left waste material punching die 13 and the right waste material punching die 14 pass through the left waste material punching hole 2306 and the right waste material punching hole in the lower template 23 2307 will complete the partial punching of the four stamping stations. At this time, a flat-top link plate workpiece is obtained. The three-punching material part 34 is punched into a four-punching material part 35 (shown as e in Figure 18), and then the punch moves upward.

6) During the fourth return trip of the punch, the PLC controls the screw module 30 to send the second initial piece of material 31 to the right end of the lower punching die 2302, and the pushing cylinder 26 is started to push the initial The material 34 is pushed to the right by the length of one station, and the punched part is ejected, and then returned to the initial position, thus completing a working cycle.

Claims (10)

1. A multistation stamping die and material feeding unit for flat top link joint production, including stamping die upper die (1), stamping die lower mould (2) and material feeding unit (3), its characterized in that: the feeding device (3) is arranged at the left sides of the upper die (1) and the lower die (2) of the stamping die;

the stamping die upper die (1) comprises an upper die holder (4), an upper base plate (5) and an upper die plate (6) which are fixedly connected through screws in sequence, wherein a residual material cutting device (7), a blanking upper die (8), a pre-bending front upper die (9), a pre-bending rear upper die (10), a front rolling driving block (11), a rear rolling driving block (12), a left waste blanking die (13), a right waste blanking die (14), a guide pillar (15), an upper limit column (16), a punching pin (17) and a punching pin buffer spring (18) are sequentially arranged on the upper die plate (6);

the stamping die lower die (2) comprises a lower die holder (19), wherein a workpiece pressing plate (20), a guide plate (22) and a lower die plate (23) are arranged on the lower die holder (19);

the stamping die upper die (1) and the stamping die lower die (2) are matched to realize stamping processing of four stations of blanking, pre-bending, rolling and waste blanking of a material part in one stroke.

2. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: the left side of the upper die holder (4) is provided with a residual material cutting cylinder mounting groove (0401), the surface of the upper die holder is provided with a guide pillar mounting hole (0402), a screw mounting hole (0403) and an upper limit post mounting hole (0404), and the residual material cutting cylinder mounting groove (0401) is arranged at the front end and the rear end of the left side of the upper die holder (4); guide pillar mounting holes (0402) are formed in the periphery of the upper die holder (4); screw mounting holes (0403) are uniformly distributed on the surface of the upper die holder (4); the upper limit column mounting holes (0404) are arranged on the front side and the rear side of the middle of the upper die holder (4);

left end of cope match-plate pattern (6) is opened there is clout cutting device installation notch (0601) and blanking upper die installation notch (0604), has preceding cylinder piston rod through-hole (0603) of opening, and open in the middle part has mould mounting hole (0605) in the back of bending in advance, goes up mould mounting hole (0606) before bending in advance, back round driving piece mounting hole (0607), preceding round driving piece mounting hole (0608), left waste blanking die mounting hole (0609), right waste blanking die mounting hole (0610), nail punching mounting hole (0611) and nail punching briquetting (0612), cylinder piston rod through-hole (0603) internally connected with clout cutting device guide arm (0602).

3. The multi-station stamping die and feeding device for flat top chain plate production according to claim 2, wherein: the residual material cutting device (7) comprises a driving block (0701), a wedge angle (0702) of the residual material cutting device, a return spring (0703) of the residual material cutting device, a residual material cutting die (0704), a through hole (0705), a cylinder piston rod (0706) and a cylinder body (0707), wherein the driving block (0701) is fixedly connected with a threaded end of the cylinder piston rod (0706) through a threaded hole on the side surface of the driving block; the wedge angles (0702) of the residual material cutting device are positioned on two sides of the residual material cutting die (0704), and through holes (0705) are formed in the wedge angles (0702) of the residual material cutting device; a return spring (0703) of the residual material cutting device is sleeved on a guide rod (0602) of the residual material cutting device in an empty mode; the cylinder piston rod (0706) is arranged in the cylinder piston rod through hole (0603); the cylinder body (0707) is arranged in the residual material cutting cylinder mounting groove (0401), and the residual material cutting device (7) is mounted on the residual material cutting device guide rod (0602) through the through hole (0705).

4. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: the punching upper die (8) is a polygon prism, the pre-bending front upper die (9) and the pre-bending rear upper die (10) are two cuboid blocks with different sizes, the bottoms of the cuboid blocks are respectively provided with a profile curved surface required by a bending piece, and the bottoms of the front rolling driving block (11) and the rear rolling driving block (12) are provided with inclined surfaces.

5. A multi-station stamping die and feeding device for flat top chain plate production according to claim 3, wherein: the left scrap cutting device comprises a scrap cutting device (7), a blanking upper die (8), a pre-bending front upper die (9), a pre-bending rear upper die (10), a front rolling driving block (11), a rear rolling driving block (12), a left scrap blanking die (13), a right scrap blanking die (14) and a punching nail (17), wherein the blanking nail (17) is sequentially arranged in a mounting notch (0601) of the scrap cutting device, a mounting notch (0604) of the blanking upper die, a mounting hole (0606) of the pre-bending front upper die, a mounting hole (0605) of the pre-bending rear upper die, a mounting hole (0608) of the front rolling driving block, a mounting hole (0607) of the rear rolling driving block, a mounting hole (0609) of the left scrap blanking die, a mounting hole (0610) of the right scrap blanking die and a mounting hole (0611) of the punching nail; the punching pin buffer spring (18) is sleeved on the punching pin (17) and fixed on the lower surface of the upper die plate (6) through welding, the guide pillar (15) is installed in the guide pillar installation hole (0402), and the upper limit post (16) is installed in the upper limit post installation hole (0404).

6. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: the lower die holder (19) comprises a pushing air cylinder groove (1901), a pushing plate mounting opening (1902), a blanking waste outlet (1903), a pushing plate moving channel (1904), a rolling rebound spring groove (1905), a sleeve mounting hole (1906), a lower limit column mounting hole (1907) and a pushing device (1908), wherein the pushing air cylinder groove (1901) is arranged in the left end of the lower die holder (19); the blanking waste outlet (1903) is a through polygonal hole; the pushing plate moving channel (1904) is a rectangular notch and is arranged on the upper surface of the lower die holder (19); sleeve mounting holes (1906) are formed in the periphery of the lower die holder (19); the lower limit column mounting holes (1907) are symmetrically arranged on the front side and the rear side of the middle part of the lower die holder (19); the pushing device (1908) comprises a hooking plate (19081), a torsion spring (19082) and a pushing plate (19083), wherein the hooking plate (19081) is a double-J symmetrical plate, a limiting block is arranged at the bottom of the hooking plate, the pushing plate (19083) is fixedly connected with the pin shaft through two through holes at the tail end, and the torsion spring (19082) is sleeved on the pin shaft in an empty mode.

7. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: a nail punching hole (2001) and a punching upper die hole (2002) are formed in the left side of the workpiece pressing plate (20), a punching buffer spring mounting hole (2003) is formed in the upper surface of the workpiece pressing plate, a pre-bending front upper die square hole (2004) and a pre-bending rear upper die square hole (2005) are formed in the middle of the workpiece pressing plate, a left waste punching die square hole (2006) and a right waste punching die square hole (2007) are formed in the right side of the workpiece pressing plate, and a punching buffer spring (21) is placed in the punching buffer spring mounting hole (2003);

notch (2201) with the same thickness as the workpiece is arranged at the left end of the guide plate (22) and used for guiding during workpiece feeding, a residual material cutting die square hole (2202) and a blanking upper die square hole (2203) are arranged in the middle of the guide plate (22), a pre-bending front upper die through hole (2204) and a pre-bending rear upper die through hole (2205) are arranged at the right side of the guide plate, and the guide plate (22) is fixedly connected with the workpiece pressing plate (20) through screws.

8. The multi-station stamping die and feeding device for producing flat top chain plates according to claim 6, wherein: a lower die plate nail punching hole (2301) and a lower blanking die (2302) are arranged on the left side of the lower die plate (23), a hook plate moving channel (2303), a lower die (2304) before pre-bending and a lower die (2305) after pre-bending are arranged in the middle of the lower die plate, a left waste blanking hole (2306), a right waste blanking hole (2307), a round rolling die guide rail (2308), a round rolling rebound spring (2309), a round rolling slider (2310), a guide rail slider (2311), a round rolling slider buffer spring (2312), a slider limiting plate (2313), a spring groove (2314) and a lower die plate multi-edge hole (2315) are arranged on the right side of the lower die plate; the lower die plate nail punching holes (2301) are formed in the left side and the right side of the lower punching die (2302), two hooking plate moving channels (2303) are formed in total, a hooking plate (19081) passes through the lower die plate (23) through the hooking plate moving channels (2303), the top of the hooking plate (19081) is higher than the surface of the lower die plate (23) by one workpiece, the round rolling die guide rail (2308) is fixedly connected with the lower die seat (19) through a screw, and the round rolling rebound springs (2309) are arranged in the round rolling rebound spring grooves (1905); the middle part of the rolling sliding block (2310) is provided with an arc rolling die (23101) manufactured in a rolling shape, the top of the rolling sliding block is provided with an inclined surface body (23102), the bottom of the rolling sliding block is provided with a rebound spring stop block (23103) and a rebound spring guide rod (23104), the rolling rebound springs (2309) are respectively sleeved on the rebound spring guide rod (23104) in an empty mode, the rolling sliding blocks (2310) are symmetrically arranged on the front side and the rear side of a rolling die guide rail (2308), the number of the guide rail sliding blocks (2311) is four, and the two rolling sliding blocks are arranged on the left side and the right side of the rolling die guide rail (2308) in a group to form sliding connection; the rolling sliding block (2310) is fixedly connected with the guide rail sliding block (2311) through a screw; the slider limiting plate (2316) bottom is equipped with two rectangle notch and is used for placing and rolls up circle mould guide rail (2311), is equipped with the guide pillar in the front and is used for installing roll up round sliding block buffer spring (2312), just slider limiting plate (2313) are installed roll up round mould guide rail (2311) front and back both sides, be equipped with semicircular hole (23141) of two symmetries in the middle of spring groove (2314) for place roll up circle rebound spring (2309), open in the both sides of bottom has rectangle through-hole (23142) to be used for passing through roll up circle mould guide rail (2308), spring groove (2314) pass through the screw with die holder (19) link firmly.

9. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: the stamping die lower die (2) further comprises a lower limiting column (24), a sleeve (25) and a pushing cylinder (26), wherein the lower limiting column (24) is installed in a lower limiting column installation hole (1907), the sleeve (25) is installed in a sleeve installation hole (1906), the pushing cylinder (26) is placed in a pushing cylinder groove (1901), and threaded ends of piston rods of the pushing cylinder are fixedly connected with threaded holes of two wings of a pushing plate (19083).

10. The multi-station stamping die and feeding device for flat top chain plate production according to claim 1, wherein: the feeding device (3) comprises a left baffle plate (27) of a storage box, a right baffle plate (28) of the storage box, a feeding box (29) and a screw rod module (30), wherein a rectangular notch (2901) is formed in the left side of the feeding box (29) and penetrates through the upper half part of the feeding box, and a blanking notch (2902) is formed in the upper surface of the feeding box; the upper surface of the rectangular notch (2901) is provided with a feeding channel (2903); the screw module (30) comprises a feeding bottom plate (3001), a motor (3002), a motor base (3003), a bearing support assembly (3004), a screw (3005), a feeding guide rail (3006), a feeding guide rail sliding block (3007), a feeding block (3008) and screw nuts (3009), wherein the bearing support assembly (3004) is positioned at the left end and the right end of the screw module (30), the screw (3005) is connected with the motor (3002) through a coupler, the feeding guide rail (3006) is arranged at two sides of the screw (3005), the motor base (3003), the bearing support assembly (3004) and the feeding guide rail (3006) are fixedly connected with the feeding bottom plate (3001) through screws, and the feeding guide rail sliding block (3007) is arranged on the feeding guide rail (3006) to form sliding connection; the screw nut (3009) is arranged on the screw (3005), the feeding block (3008) is fixedly connected with the screw nut (3009) through a screw, a feeding block base (30081) of the feeding block (3008) is fixedly connected with the feeding guide rail slide block (3007), a rectangular push plate (30082) is arranged at the top of the feeding block (3008), and the rectangular push plate (30082) is in sliding connection with the rectangular notch (2901); when the material piece falls onto the upper surface of the rectangular notch (2901) from the blanking notch (2902) in sequence, the rectangular push plate (30082) pushes the material piece to a required station under the driving of the motor (3002), the screw rod (3005) and the screw rod nut (3009).