CN111331191A

CN111331191A - Automatic blanking device and method for sheet metal machining process

Info

Publication number: CN111331191A
Application number: CN202010282030.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xinchang Dingrui Technology Co ltd
Current assignee: Xinchang Dingrui Technology Co ltd
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-06-26

Abstract

The invention discloses an automatic blanking device and a method for a sheet metal machining process, wherein the automatic blanking device comprises a workbench, a blanking table is arranged above the workbench, a blanking rod is arranged below the blanking table, a hydraulic cylinder and a first motor are fixed on the lower surface of the workbench, a working column is fixed on the upper surface of the workbench, a first movable cross rod is arranged on one side of the working column, a second movable cross rod is arranged below the first movable cross rod, a movable block is arranged below the second movable cross rod, a cutter is fixed at the bottom end of the movable block, the cutter is matched with a dust collector, and a material receiving bin is arranged at one end, away from the working column, of the workbench; hydraulic telescoping rod and unloading pole combined action for the slope takes place for the unloading platform for the panel beating is collected full automation, has replaced the manual work and has collected the panel beating, and then has promoted the work efficiency of panel beating unloading, and the panel beating of accomplishing the unloading has the unified collection in receipts feed bin, makes the operator more convenient to the transfer of panel beating.

Description

Automatic blanking device and method for sheet metal machining process

Technical Field

The invention belongs to the technical field of sheet metal machining, and particularly relates to an automatic blanking device and method for a sheet metal machining process.

Background

The sheet metal is a comprehensive cold processing technology aiming at sheet metal, generally, the three most important steps of a sheet metal part factory are shearing, punching/cutting and folding, the sheet metal processing is called sheet metal processing, specifically, for example, a sheet metal is utilized to manufacture a chimney, an iron bucket, an oil tank oilcan, a ventilating pipeline, an elbow reducer, a hemispherical dome, a funnel shape and the like, the main procedures are shearing, bending and edge buckling, bending and forming, welding, riveting and the like, certain geometric knowledge is needed, the sheet metal blanking technology is to cut the sheet metal in a certain shape and specification, and the sheet metal blanking needs to be used for a sheet metal blanking device.

Traditional automatic unloader of panel beating, when carrying out the unloading process to the panel beating, can produce the phenomenon that tiny piece splashes, the piece splashes and can lead to the fact certain injury to the user, the clastic meeting that splashes simultaneously can lead to the fact environmental pollution, can produce more waste material after the panel beating unloading is accomplished, traditional automatic unloader of panel beating can not collect the waste material, make the user comparatively troublesome in the follow-up collection to the waste material, and need the manual work to collect to the panel beating of accomplishing the unloading, the work efficiency of greatly reduced panel beating unloading.

Disclosure of Invention

The invention aims to provide an automatic blanking device and method for a sheet metal machining process.

The technical problems to be solved by the invention are as follows:

The purpose of the invention can be realized by the following technical scheme:

an automatic blanking device for a sheet metal machining process comprises a workbench, wherein a first through hole is formed in the center of the workbench, four uniformly distributed support rods are fixed on the upper surface of the workbench, a blanking table is arranged above the workbench, a second through hole is formed in the center of the blanking table and is positioned right above the first through hole, a blanking rod is arranged below the blanking table and penetrates through the workbench, a blanking plate is fixed at the bottom end of the blanking rod, two oppositely-arranged waste material grooves are formed in the lower bottom surface of the workbench and are positioned on two sides of the first through hole, a fixed sliding groove is formed in the center of one side of the lower surface of the workbench, a fixing groove is formed in the end of the fixed sliding groove and is matched with the fixed sliding groove, a hydraulic cylinder is fixed at one end, away from the blanking rod, of the lower surface of the workbench, a hydraulic telescopic rod is fixed at the output end of the hydraulic cylinder, and penetrates through the workbench, the hydraulic telescopic rod is connected with the workbench in a sliding way, the top end of the hydraulic telescopic rod is attached to the lower surface of the blanking plate, a first motor is fixed at one end of the lower surface of the workbench, which is far away from the hydraulic cylinder, a blanking cam is fixed on an output shaft of the first motor, the blanking cam is positioned right above the blanking plate, a working column is fixed at the center of one end of the upper surface of the workbench, which is far away from the first motor, a first screw is arranged inside the working column, the first screw is rotationally connected with the working column, a second motor is fixed at the top end of the working column, the output end of the second motor is fixedly connected with the first screw, a first movable cross rod is arranged at one side of the working column, which is close to the blanking plate, a first stopper is fixed at one end of the first movable cross rod, the first stopper is in threaded connection with the first screw, the first stopper is slidably connected with the working column, a second screw is arranged inside the first movable, a third motor is fixed at the other end of the first movable cross bar, the output end of the third motor is fixedly connected with a second screw rod, a second movable cross bar is arranged below the first movable cross bar, a second limiting block is fixed on the upper surface of the second movable cross bar, the second limiting block is in threaded connection with the second screw rod, the second limiting block is in sliding connection with the first movable cross bar, a third screw rod is arranged inside the second movable cross bar and is in rotating connection with the second movable cross bar, a fourth motor is fixed at one end of the second movable cross bar, the output end of the fourth motor is fixedly connected with the third screw rod, a dust collector is fixed at the other end of the second movable cross bar, a movable block is arranged below the second movable cross bar, a third limiting block is fixed at the top end of the movable block, the third limiting block is in threaded connection with the third screw rod, the third limiting block is in sliding connection with the second movable cross bar, and a cutter, the cutter is matched and combined with the dust collector, and a material collecting bin is arranged at one end of the workbench, which is far away from the working column.

Further, the lower fixed surface of workstation have four support columns of evenly setting, the top of bracing piece is fixed with the rubber pad, the top of rubber pad and the lower bottom surface of unloading platform are laminated mutually, the one end that the workstation kept away from the working column is equipped with the slope, fixed spout is the slope groove.

Further, the below of workstation be equipped with the waste bin, the waste bin is located first through-hole under, the both sides of waste bin are fixed with the waste material curb plate, the top of waste material curb plate is fixed with the curb plate head, the curb plate head cooperatees with the waste bin.

Furthermore, the two sides of the blanking table are provided with positioning rods, the upper ends of the positioning rods are rotatably connected with the side walls of the blanking table, the bottom ends of the positioning rods are fixedly connected with the workbench, the lower surface of the blanking table is fixedly provided with a connector, the blanking rods are positioned under the connector, the top ends of the blanking rods are hinged with the connector, and the blanking rods are slidably connected with the workbench.

Further, the unloading pole on be fixed with two side levers that oppose the setting, workstation and unloading pole junction are equipped with the spout of two opposition settings, the spout is located the both sides of unloading pole, the side lever cooperatees with the spout, the lower fixed surface of side lever has first spring, the bottom of first spring and the diapire fixed connection of spout.

Further, the output of dust collector be equipped with the dust collecting tube, the dust collecting tube is fixed with two collection dirt expansion hose that set up oppositely, and the output of cutterbar is equipped with the cutting piece, and the both sides of cutterbar are fixed with the baffle, and the cutting piece is located the inside of baffle, collection dirt expansion hose end and baffle fixed connection, collection dirt expansion hose is linked together with the baffle.

Further, the bottom mounting of receipts feed bin have four evenly distributed's universal wheel, one side that receives the feed bin to be close to the workstation is fixed with the connecting rod, the vertical fixation has fixed mobile jib on the end of connecting rod, the inside fixed auxiliary rod that is equipped with of fixed mobile jib, fixed mobile jib is passed on the top of fixed auxiliary rod, fixed auxiliary rod and fixed mobile jib sliding connection, the bottom mounting of fixed auxiliary rod has the second spring, the bottom of second spring and the inner wall fixed connection of fixed mobile jib, the top of fixed auxiliary rod is fixed with the fixed head, the fixed head is the triangular prism, the top height of fixed head is the same with the top height of fixed spout, the fixed head cooperatees with the fixed slot.

Further, the method for blanking the metal plate by the automatic blanking device of the metal plate machining process comprises the following steps:

placing a metal plate to be blanked on a blanking table, starting a third motor and a fourth motor according to the position of the metal plate to be blanked, wherein the third motor drives a second screw to rotate, so that a second limiting block moves along the second screw, the second limiting block drives a second movable cross rod to move along a first movable cross rod, the fourth motor drives a third screw to rotate, so that the third limiting block moves along the third screw, the third limiting block drives a moving block to move along a second movable cross rod, a cutting position is determined, a dust collector, a cutter and a second motor are started, the second motor drives a first screw to rotate, so that the first limiting block moves downwards, the first limiting block drives a first movable cross rod to move downwards along a working column, a cutting piece blanks the metal plate, generated redundant waste materials sequentially pass through a second through hole and a first through hole to enter a waste material box for collection, and after blanking of the metal plate is completed, the first movable cross rod is lifted, open first motor and pneumatic cylinder, first motor drives the unloading cam and rotates, pushes down the flitch under the unloading cam, and the unloading board moves unloading pole downstream, and the pneumatic cylinder makes hydraulic telescoping rod rise, and hydraulic telescoping rod and unloading pole combined action for the unloading platform takes place the slope, accomplishes the panel beating of unloading, breaks away from the unloading platform surface and gets into through the slope and receive the feed bin, accomplishes the panel beating and collects the back, stimulates the feed bin, makes the separation of receiving feed bin and workstation obtain the panel beating of accomplishing the unloading.

The invention has the beneficial effects that:

the invention drives the second screw rod to rotate through the third motor, so that the second limiting block moves along the second screw rod, the second limiting block drives the second movable cross rod to move along the first movable cross rod, the fourth motor drives the third screw rod to rotate, the third limiting block drives the movable block to move along the third screw rod, the third limiting block drives the movable block to move along the second movable cross rod, so that the position of the cutting piece for blanking the sheet metal can be adjusted at will, the cutting piece is positioned in the baffle, the baffle effectively prevents partial fine scraps from splashing when the sheet metal is blanked, the dust collecting flexible pipe collects the fine scraps generated by blanking the sheet metal and concentrates the fine scraps into the dust collector, the possibility that the scraps splash to hurt people is reduced, the environmental pollution caused by the splashing of the scraps is avoided, the arrangement of the first through hole and the second through hole enables large scraps generated by blanking to enter the waste bin to be collected, and the uniform recovery and treatment of the sheet metal scraps, the first motor drives the unloading cam and rotates, pushes down the flitch under the unloading cam, and the unloading board moves the unloading pole downstream, and the pneumatic cylinder makes hydraulic telescoping rod rise, and hydraulic telescoping rod and unloading pole combined action for the slope takes place for the unloading platform, makes the panel beating collect full automation, has replaced the manual work and has collected the panel beating, and then has promoted the work efficiency of panel beating unloading, and the panel beating of accomplishing the unloading has the unified collection in receipts feed bin, makes the operator more convenient to the transfer of panel beating.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of an automatic blanking device for a sheet metal machining process according to the present invention.

Fig. 2 is a partial structural schematic diagram of fig. 1.

Fig. 3 is a partial structural schematic diagram of fig. 1.

Fig. 4 is a partial structural schematic diagram of fig. 1.

FIG. 5 is a top view of the blanking table of the present invention.

FIG. 6 is a top view of the table of the present invention.

FIG. 7 is a side view of the worktable of the present invention.

Fig. 8 is a bottom view of the table of the present invention.

Figure 9 is a side view of the waste bin of the present invention.

Fig. 10 is a side view of the blanking cam of the present invention.

Fig. 11 is a side view of a second movable cross bar of the present invention.

In the figure: 1. a work table; 11. a support pillar; 12. a first through hole; 13. a support bar; 131. a rubber pad; 132. a blanking rod; 133. a blanking plate; 134. a side lever; 14. a slope; 15. a chute; 151. a first spring; 16. a waste chute; 17. fixing the chute; 18. fixing grooves; 2. a blanking table; 21. a second through hole; 22. a connector; 23. positioning a rod; 3. a waste bin; 31. a waste side plate; 32. a side plate head; 4. a hydraulic cylinder; 41. a hydraulic telescopic rod; 5. a first motor; 51. a blanking cam; 6. a working column; 61. a first screw; 62. a second motor; 7. a first movable cross bar; 71. a first stopper; 72. a second screw; 73. a third motor; 8. a second movable cross bar; 81. a second limiting block; 82. a third screw; 83. a fourth motor; 84. a dust collector; 841. a dust collecting pipe; 842. a dust collecting flexible hose; 85. a moving block; 851. a third limiting block; 852. a cutter; 853. cutting the slices; 854. a baffle plate; 9. a material receiving bin; 91. a universal wheel; 92. a connecting rod; 93. fixing the main rod; 931. a second spring; 94. fixing the auxiliary rod; 95. and fixing the head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention is an automatic blanking device for sheet metal working process, including a working table 1, a first through hole 12 is opened at the center of the working table 1, four support rods 13 are fixed on the upper surface of the working table 1, a blanking table 2 is arranged above the working table 1, a second through hole 21 is opened at the center of the blanking table 2, the second through hole 21 is located right above the first through hole 12, a blanking rod 132 is arranged below the blanking table 2, the blanking rod 132 passes through the working table 1, a blanking plate 133 is fixed at the bottom end of the blanking rod 132, two oppositely disposed waste chutes 16 are opened at the lower bottom surface of the working table 1, the waste chutes 16 are located at two sides of the first through hole 12, a fixed chute 17 is opened at the center of one side of the lower surface of the working table 1, a fixed chute 18 is opened at the end of the fixed chute 17, the fixed chute 18 is matched with the fixed chute 17, a hydraulic cylinder 4 is fixed at one end of the lower surface of the working table 1 far from, the output end of the hydraulic cylinder 4 is fixed with a hydraulic telescopic rod 41, the hydraulic telescopic rod 41 penetrates through the workbench 1, the hydraulic telescopic rod 41 is connected with the workbench 1 in a sliding manner, the top end of the hydraulic telescopic rod 41 is attached to the lower surface of the blanking plate 133, one end of the lower surface of the workbench 1, which is far away from the hydraulic cylinder 4, is fixed with a first motor 5, an output shaft of the first motor 5 is extended and fixed with a blanking cam 51, the blanking cam 51 is positioned right above the blanking plate 133, the center of one end of the upper surface of the workbench 1, which is far away from the first motor 5, is fixed with a working column 6, a first screw 61 is arranged inside the working column 6, the first screw 61 is connected with the working column 6 in a rotating manner, the top end of the working column 6 is fixed with a second motor 62, the output end of the second motor 62 is fixedly connected with the first screw 61, one side of the working column 6, which is close to the blanking plate 133, the first limit block 71 is in threaded connection with the first screw 61, the first limit block 71 is in sliding connection with the working column 6, the second screw 72 is arranged inside the first movable cross bar 7, the second screw 72 is in rotating connection with the first movable cross bar 7, the other end of the first movable cross bar 7 is fixedly provided with a third motor 73, the output end of the third motor 73 is fixedly connected with the second screw 72, the second movable cross bar 8 is arranged below the first movable cross bar 7, the upper surface of the second movable cross bar 8 is fixedly provided with a second limit block 81, the second limit block 81 is in threaded connection with the second screw 72, the second limit block 81 is in sliding connection with the first movable cross bar 7, the third screw 82 is arranged inside the second movable cross bar 8, the third screw 82 is in rotating connection with the second movable cross bar 8, one end of the second movable cross bar 8 is fixedly provided with a fourth motor 83, the output end of the fourth motor 83 is fixedly connected with the third screw 82, the other end of the second movable cross rod 8 is fixed with a dust collector 84, a movable block 85 is arranged below the second movable cross rod 8, a third limit block 851 is fixed at the top end of the movable block 85, the third limit block 851 is in threaded connection with a third screw 82, the third limit block 851 is in sliding connection with the second movable cross rod 8, a cutter 852 is fixed at the bottom end of the movable block 85, the cutter 852 is matched and combined with the dust collector 84, and a material collecting bin 9 is arranged at one end, far away from the working column 6, of the working table 1.

The lower fixed surface of workstation 1 have four support columns 11 that evenly set up, the top of bracing piece 13 is fixed with rubber pad 131, the top of rubber pad 131 laminates mutually with the lower bottom surface of unloading platform 2, the one end that workstation 1 kept away from workstation 6 is equipped with slope 14, fixed spout 17 is the slope groove.

The below of workstation 1 be equipped with waste bin 3, waste bin 3 is located first through-hole 12 under, waste bin 3's both sides are fixed with waste material curb plate 31, the top of waste material curb plate 31 is fixed with curb plate head 32, curb plate head 32 cooperatees with waste chute 16.

The both sides of unloading platform 2 be equipped with locating lever 23, the upper end of locating lever 23 is connected with 2 lateral walls of unloading platform are rotated, the bottom and the workstation 1 fixed connection of locating lever 23, the lower surface of unloading platform 2 is fixed with connector 22, unloading pole 132 is located under connector 22, the top and the connector 22 hinge joint of unloading pole 132, unloading pole 132 and workstation 1 sliding connection.

The blanking rod 132 is fixed with two side rods 134 which are oppositely arranged, the connecting part of the workbench 1 and the blanking rod 132 is provided with two sliding chutes 15 which are oppositely arranged, the sliding chutes 15 are positioned at two sides of the blanking rod 132, the side rods 134 are matched with the sliding chutes 15, the lower surface of the side rods 134 is fixed with a first spring 151, and the bottom end of the first spring 151 is fixedly connected with the bottom wall of the sliding chute 15.

The output of dust collector 84 be equipped with dust collection tube 841, dust collection tube 841 is fixed with the collection dirt flexible hose 842 of two opposition settings, cutter 852's output is equipped with cutting piece 853, cutter 852's both sides are fixed with baffle 854, cutting piece 853 is located the inside of baffle 854, collection dirt flexible hose 842 end and baffle 854 fixed connection, collection dirt flexible hose 842 is linked together with baffle 854.

Receive the universal wheel 91 that the bottom mounting of feed bin 9 has four evenly distributed, receive one side that feed bin 9 is close to workstation 1 and be fixed with connecting rod 92, the vertical fixation has fixed mobile jib 93 on the end of connecting rod 92, fixed mobile jib 93 is inside to be equipped with fixed auxiliary rod 94, fixed mobile jib 93 is passed on the top of fixed auxiliary rod 94, fixed auxiliary rod 94 and fixed mobile jib 93 sliding connection, the bottom mounting of fixed auxiliary rod 94 has second spring 931, the bottom of second spring 931 and the inner wall fixed connection of fixed mobile jib 93, the top of fixed auxiliary rod 94 is fixed with fixed head 95, fixed head 95 is the triangular prism, the top height of fixed head 95 is the same with the top height of fixed spout 17, fixed head 95 cooperatees with fixed slot 18.

The method for blanking the metal plate through the automatic blanking device of the metal plate machining process comprises the following steps:

placing a metal plate to be blanked on a blanking table 2, opening a third motor 73 and a fourth motor 83 according to the position of the metal plate to be blanked, wherein the third motor 73 drives a second screw 72 to rotate, so that a second limit block 81 moves along the second screw 72, the second limit block 81 drives a second movable cross rod 8 to move along a first movable cross rod 7, the fourth motor 83 drives a third screw 82 to rotate, so that a third limit block 851 moves along the third screw 82, the third limit block 851 drives a movable block 85 to move along the second movable cross rod 8, the blanking position is determined, opening a dust collector 84, a cutter 852 and a second motor 62, the second motor 62 drives a first screw 61 to rotate, so that a first limit block 71 moves downwards, the first limit block 71 drives the first movable cross rod 7 to move downwards along a working column 6, a cutting sheet 853 blanks the metal plate, and generated surplus waste materials sequentially pass through a second through hole 21 and a first through hole 12 to enter a waste bin 3 to be collected, after accomplishing the panel beating unloading, first removal horizontal pole 7 that rises, open first motor 5 and pneumatic cylinder 4, first motor 5 drives unloading cam 51 and rotates, unloading cam 51 pushes down blanking plate 133, blanking plate 133 drives unloading pole 132 downstream, pneumatic cylinder 4 makes hydraulic telescoping rod 41 rise, hydraulic telescoping rod 41 and unloading pole 132 combined action, make unloading platform 2 take place the slope, accomplish the panel beating of unloading, break away from 2 surfaces of unloading platform and get into receipts feed bin 9 through slope 14, accomplish the panel beating and collect the back, stimulate receipts feed bin 9, make the separation of receiving feed bin 9 and workstation 1 obtain the panel beating of accomplishing the unloading.

The position of the cutting piece 853 for blanking the metal plate can be adjusted at will through the matching use of the working column 6, the first movable cross rod 7, the second movable cross rod 8 and the movable block 85, the cutting piece 853 is positioned inside the baffle 854, the baffle 854 effectively prevents splashing of partial fine scraps when blanking the metal plate, the dust collection telescopic hose 842 collects the fine scraps generated by blanking the metal plate and concentrates the fine scraps into the dust collector 84, the possibility that the scraps splash to hurt people is reduced, environmental pollution caused by the scraps splash is avoided, the arrangement of the first through hole 12 and the second through hole 21 enables large scraps generated by blanking to enter the scrap box 3 for collection, the uniform recovery treatment of the metal plate scraps by a user is facilitated, the first motor 5 drives the blanking cam 51 to rotate, the blanking cam 51 presses the blanking plate 133, the blanking rod 132 is driven by the blanking plate 133 to move downwards, the hydraulic cylinder 4 enables the hydraulic telescopic rod 41 to ascend, hydraulic telescoping rod 41 and unloading pole 132 combined action for unloading platform 2 takes place the slope, makes the panel beating collect full automation, has replaced the manual work to collect the panel beating, and then has promoted the work efficiency of panel beating unloading, and the panel beating of accomplishing the unloading has the unified collection of receiving feed bin 9, makes the operator more convenient to the transfer of panel beating.

The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.

Claims

1. The utility model provides an automatic unloader for panel beating technology which characterized in that: comprises a workbench (1), a first through hole (12) is formed in the center of the workbench (1), four uniformly distributed support rods (13) are fixed on the upper surface of the workbench (1), a blanking table (2) is arranged above the workbench (1), a second through hole (21) is formed in the center of the blanking table (2), the second through hole (21) is positioned right above the first through hole (12), a blanking rod (132) is arranged below the blanking table (2), the blanking rod (132) penetrates through the workbench (1), a blanking plate (133) is fixed at the bottom end of the blanking rod (132), two oppositely arranged waste material grooves (16) are formed in the lower bottom surface of the workbench (1), the waste material grooves (16) are positioned on two sides of the first through hole (12), a fixed chute (17) is formed in the center of one side of the lower surface of the workbench (1), a fixed groove (18) is formed in the end of the fixed chute (17), and the fixed groove (18) is matched with the fixed chute (17), one end of the lower surface of the workbench (1) far away from the blanking rod (132) is fixed with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is fixed with a hydraulic telescopic rod (41), the hydraulic telescopic rod (41) penetrates through the workbench (1), the hydraulic telescopic rod (41) is connected with the workbench (1) in a sliding manner, the top end of the hydraulic telescopic rod (41) is attached to the lower surface of the blanking plate (133), one end of the lower surface of the workbench (1) far away from the hydraulic cylinder (4) is fixed with a first motor (5), a blanking cam (51) is fixed on an output shaft extension of the first motor (5), the blanking cam (51) is positioned right above the blanking plate (133), a working column (6) is fixed at the center of one end of the upper surface of the workbench (1) far away from the first motor (5), a first screw rod (61) is arranged inside the working column (6), and the first screw rod (61) is connected with the working column, a second motor (62) is fixed at the top end of the working column (6), the output end of the second motor (62) is fixedly connected with the first screw rod (61), one side of the working column (6) close to the blanking plate (133) is provided with a first movable cross rod (7), one end of the first movable cross rod (7) is fixed with a first limit block (71), the first limit block (71) is in threaded connection with the first screw rod (61), the first limit block (71) is in sliding connection with the working column (6), a second screw rod (72) is arranged inside the first movable cross rod (7), the second screw rod (72) is rotatably connected with the first movable cross rod (7), the other end of the first movable cross rod (7) is fixed with a third motor (73), the output end of the third motor (73) is fixedly connected with the second screw rod (72), a second movable cross rod (8) is arranged below the first movable cross rod (7), and a second limit block (81) is fixed on the upper surface of the second movable cross rod (8), a second limiting block (81) is in threaded connection with a second screw (72), the second limiting block (81) is in sliding connection with a first movable cross rod (7), a third screw (82) is arranged inside a second movable cross rod (8), the third screw (82) is in rotating connection with the second movable cross rod (8), one end of the second movable cross rod (8) is fixed with a fourth motor (83), the output end of the fourth motor (83) is fixedly connected with the third screw (82), the other end of the second movable cross rod (8) is fixed with a dust collector (84), a moving block (85) is arranged below the second movable cross rod (8), a third limiting block (851) is fixed at the top end of the moving block (85), the third limiting block (851) is in threaded connection with the third screw (82), the third limiting block (851) is in sliding connection with the second movable cross rod (8), a cutter (852) is fixed at the bottom end of the moving block (85), the cutter (852) is matched and combined with the dust collector (84), and a material collecting bin (9) is arranged at one end of the workbench (1) far away from the working column (6).

2. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: the lower fixed surface of workstation (1) have four support columns (11) of evenly setting, the top of bracing piece (13) is fixed with rubber pad (131), the top of rubber pad (131) and the lower bottom surface of unloading platform (2) are laminated mutually, the one end that workstation (1) kept away from work post (6) is equipped with slope (14), fixed spout (17) are the domatic groove.

3. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: the lower of workstation (1) be equipped with waste bin (3), waste bin (3) are located under first through-hole (12), the both sides of waste bin (3) are fixed with waste material curb plate (31), the top of waste material curb plate (31) is fixed with curb plate head (32), curb plate head (32) and waste material groove (16) cooperate.

4. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: the both sides of unloading platform (2) be equipped with locating lever (23), the upper end and the unloading platform (2) lateral wall of locating lever (23) rotate to be connected, the bottom and workstation (1) fixed connection of locating lever (23), the lower fixed surface of unloading platform (2) has connector (22), unloading pole (132) are located connector (22) under, the top and connector (22) hinge joint of unloading pole (132), unloading pole (132) and workstation (1) sliding connection.

5. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: unloading pole (132) on be fixed with side lever (134) that two opposition set up, workstation (1) is equipped with spout (15) that two opposition set up with unloading pole (132) junction, spout (15) are located the both sides of unloading pole (132), side lever (134) cooperate with spout (15), the lower fixed surface of side lever (134) has first spring (151), the bottom of first spring (151) and the diapire fixed connection of spout (15).

6. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: the output of dust collector (84) be equipped with dust collection pipe (841), dust collection pipe (841) are fixed with two collection dirt expansion hose (842) that the opposition set up, the output of cutter (852) is equipped with cutting piece (853), the both sides of cutter (852) are fixed with baffle (854), cutting piece (853) are located the inside of baffle (854), collection dirt expansion hose (842) end and baffle (854) fixed connection, collection dirt expansion hose (842) are linked together with baffle (854).

7. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: receive the bottom mounting of material storehouse (9) have four evenly distributed's universal wheel (91), receive one side that material storehouse (9) is close to workstation (1) and be fixed with connecting rod (92), the vertical fixation has fixed mobile jib (93) on the end of connecting rod (92), fixed mobile jib (93) inside is equipped with fixed auxiliary rod (94), fixed mobile jib (93) are passed on the top of fixed auxiliary rod (94), fixed auxiliary rod (94) and fixed mobile jib (93) sliding connection, the bottom mounting of fixed auxiliary rod (94) has second spring (931), the bottom of second spring (931) and the inner wall fixed connection of fixed mobile jib (93), the top of fixed auxiliary rod (94) is fixed with fixed head (95), fixed head (95) are the triangular prism, the top height of fixed head (95) is the same with the top height of fixed spout (17), fixed head (95) cooperate with fixed slot (18).

8. The automatic blanking device for the sheet metal machining process according to claim 1, characterized in that: the use method of the automatic blanking device for the sheet metal machining process comprises the following steps:

placing a metal plate to be blanked on a blanking table (2), opening a third motor (73) and a fourth motor (83) according to the position of the metal plate to be blanked, driving a second screw (72) to rotate by the third motor (73), enabling a second limiting block (81) to move along the second screw (72), driving a second movable cross rod (8) to move along a first movable cross rod (7) by the second limiting block (81), driving a third screw (82) to rotate by the fourth motor (83), enabling a third limiting block (851) to move along the third screw (82), driving a moving block (85) to move along the second movable cross rod (8) by the third limiting block (85), determining the blanking position, opening a dust collector (84), a cutter (852) and a second motor (62), driving a first screw (61) to rotate by the second motor (692), enabling a first limiting block (71) to move downwards, and driving a first movable cross rod (7) to move downwards along a working column (6) by the first limiting block (71), the cutting blade (853) is used for blanking the metal plate, the produced redundant waste materials sequentially pass through the second through hole (21) and the first through hole (12) to enter the waste material box (3) for collection, after the blanking of the metal plate is completed, the first movable cross rod (7) is lifted, the first motor (5) and the hydraulic cylinder (4) are started, the first motor (5) drives the blanking cam (51) to rotate, the blanking cam (51) presses down the blanking plate (133), the blanking plate (133) drives the blanking rod (132) to move downwards, the hydraulic cylinder (4) enables the hydraulic telescopic rod (41) to lift, and the hydraulic telescopic rod (41) and the blanking rod (133) act together, so that the blanking table (2) is inclined, the sheet metal which finishes blanking is separated from the surface of the blanking table (2) and enters the material receiving bin (9) through the slope (14), the material receiving bin (9) is pulled after the sheet metal is collected, so that the separation of the material receiving bin (9) and the workbench (1) is realized to obtain the metal plate for finishing the blanking.