CN212496032U - A unloader for sheet metal component processing - Google Patents

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a blanking device for sheet metal part processing, which can effectively improve the automation degree of sheet metal cutting by comprehensively cutting a sheet metal, is convenient for equipment to perform multi-angle or arc-shaped cutting processing on the sheet metal, improves the functional diversity of the equipment, does not need workers to perform position adjustment on the sheet metal when the equipment is automatically cut, can perform one-step forming cutting on the sheet metal, effectively improves the working efficiency, and improves the practicability and the reliability; including workstation, base and bow-shaped frame, the workstation is installed on the base, and the top left side and the right side at the workstation are installed respectively on the bottom left side and the right side of bow-shaped frame, and the upper portion front side and the rear side of bow-shaped frame all transversely communicate and are provided with T type groove, and two sets of T type inslots all can slide and be provided with first slider.

Description

A unloader for sheet metal component processing

Technical Field

The utility model relates to a mechanical equipment's technical field especially relates to an unloader for sheet metal component processing.

Background

As is known, sheet metal component is when processing production, need earlier to carry out cutting unloading processing to the panel beating raw materials, current unloading mode is that the workman cuts the panel beating through the cutting machine usually, current cutting machine adopts mechanical shearing's mode to cut the panel beating usually, this kind of cutting machine can only carry out the straight line cutting processing to the panel beating, can't carry out multi-angle or arc cutting processing according to panel beating rule requirement, equipment functionality is comparatively single, equipment is when using simultaneously, need the workman to adjust the panel beating position many times and cut the processing, the operation mode is comparatively loaded down with trivial details, work efficiency is lower.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a through carrying out the comprehensive cutting processing to the panel beating, can effectively improve panel beating cutting degree of automation, conveniently make equipment carry out multi-angle or arc cutting processing to the panel beating, improve equipment function diversity, during equipment automatic cutout simultaneously, need not the workman and carry out position adjustment to the panel beating, equipment can carry out one shot forming cutting to the panel beating, effectively improves work efficiency, improves the unloader that is used for the sheet metal component processing of practicality and reliability.

The utility model discloses a blanking device for sheet metal component processing, which comprises a workbench, a base and a bow-shaped frame, wherein the workbench is arranged on the base, the left side and the right side of the bottom of the bow-shaped frame are respectively arranged on the left side and the right side of the top of the workbench, the front side and the rear side of the upper portion of the bow-shaped frame are both transversely communicated and provided with T-shaped grooves, two groups of T-shaped grooves are both provided with first sliders in a sliding manner, the outer sides of the two groups of first sliders are both provided with connecting frames, the outer sides of the two groups of connecting frames respectively pass through the two groups of T-shaped grooves and extend out of the bow-shaped frame, the upper side of the interior of the bow-shaped frame is provided with a movable plate, the outer sides of the two groups of connecting frames are respectively arranged on the front side and the rear side of the movable plate, a lead screw is arranged above the movable plate, the left, the first motor and the speed reducer are mutually in transmission connection, the right output end of the speed reducer penetrates through the bow-shaped frame and is in transmission connection with the left end of the lead screw, an adjusting device is arranged on the lower side of the movable plate, a laser cutting machine is arranged at the bottom of the adjusting device, a pushing device is arranged on the upper side of the workbench, a placing table is arranged at the top of the pushing device, and an adsorption fixing device is arranged on the outer side of the placing table; opening a pushing device, wherein the pushing device can drive a placing table and a metal plate to move longitudinally, opening a first motor, the first motor drives a lead screw to rotate through a speed reducer, the lead screw is connected with a screw sleeve in a screw way, the lead screw drives the screw sleeve to move left and right, the screw sleeve drives a movable plate to move left and right, the movable plate drives a laser cutting machine to move transversely through an adjusting device, the movable plate drives two groups of first sliders to respectively slide transversely in two groups of T-shaped grooves through two groups of connecting frames, the height of the laser cutting machine can be adjusted through the adjusting device, the bottom of the laser cutting machine is convenient to be close to or far away from the surface of the metal plate, placing the plate-shaped metal plate on the placing table, opening an adsorption fixing device, performing adsorption fixing treatment on the metal plate through the adsorption fixing device, controlling the laser cutting, the sheet metal is cut by the bottom of the laser cutting machine, the sheet metal is longitudinally moved by controlling the placing table and the sheet metal, the sheet metal is longitudinally cut by the bottom of the laser cutting machine, the sheet metal is transversely moved by controlling the laser cutting machine, the sheet metal is conveniently transversely cut by the bottom of the laser cutting machine, the sheet metal plane is comprehensively cut by the bottom of the laser cutting machine, after the sheet metal is cut, the laser cutting machine is closed, the laser cutting machine is driven by the control adjusting device to move upwards and restore to an initial position, the first motor, the pushing device and the adsorption fixing device are closed, the sheet metal is taken down, the blanking work of the sheet metal is completed, the sheet metal is comprehensively cut, the sheet metal cutting automation degree can be effectively improved, the sheet metal is conveniently cut by equipment in a multi-angle or arc shape, and the functional diversity of the equipment is, when equipment automatic cutout simultaneously, need not the workman and carry out position adjustment to the panel beating, equipment can carry out one shot forming cutting to the panel beating, effectively improves work efficiency, improves practicality and reliability.

The utility model discloses a unloader for sheet metal component processing, adjusting device includes two sets of mounts, two sets of cylinders, two sets of push rods, two sets of connecting rod and mounting panel, the upside of two sets of mounts is all installed in the bottom of movable plate, two sets of cylinders are installed respectively in the outside of two sets of mounts, two sets of push rods all are located the inboard of two sets of mounts, the outer end of two sets of push rods passes two sets of mounts respectively and installs respectively on the inboard output of two sets of cylinders, the outside of two sets of connecting rods is rotatable the inboard of installing at two sets of push rods respectively, the inboard of two sets of connecting rods is rotatable the top left side and the right side of mounting panel respectively, the top; open two sets of cylinders, two sets of cylinders can promote two sets of push rods in step and move to the inboard or move to the outside, two sets of push rods stretch or extrude the processing through two sets of connecting rods to the mounting panel respectively, thereby make the mounting panel reciprocate, the mounting panel can drive laser cutting machine and reciprocate, thereby make laser cutting machine's bottom keep away from or be close to the panel beating surface, conveniently adjust laser cutting machine's position, make things convenient for the panel beating to go up unloading work, bump with laser cutting machine when preventing the panel beating from going up unloading, improve practicality and reliability.

The utility model discloses an unloader for sheet metal component processing, thrust unit includes two sets of guide rails, two sets of second sliders, two sets of tooth rows, two sets of gears, two sets of pivot and two sets of second motors, two sets of guide rails are vertically installed respectively on the left side and the right side of the top of workstation, two sets of second sliders are rotatably installed respectively on two sets of guide rails, the tops of two sets of second sliders are all fixed in the bottom of placing the platform, two sets of tooth rows are located between two sets of second sliders, the tops of two sets of tooth rows are all vertically installed in the bottom of placing the platform, two sets of gears are respectively engaged with two sets of tooth rows, two sets of pivot are installed respectively on two sets of gears, the bottoms of two sets of second motors are all fixed on the workstation, the upside output ends of two sets of second motors are respectively connected; open two sets of second motors, two sets of second motors can drive two sets of pivots and gear in step and rotate, and two sets of gear rotation opposite direction, two sets of gears respectively with two sets of rows of teeth meshing, two sets of rows of teeth of two sets of gear accessible promote to place the platform and carry out the back-and-forth movement to the messenger places the platform and drives the panel beating and carry out the back-and-forth movement, and the platform of placing of moving state drives two sets of second sliders and slides on two sets of guide rails respectively simultaneously, improves practicality and reliability.

The utility model discloses a unloader for sheet metal component processing, adsorb fixing device include four group's insulating fixed blocks, four group's electromagnetic absorber and control box, four group's insulating fixed blocks are evenly installed on the lateral wall of placing the platform, four group's electromagnetic absorber install respectively on four group's insulating fixed blocks, four group's electromagnetic absorber's top all is parallel and level with the top of placing the platform, the control box is installed on the workstation, the control box is connected with four group's electromagnetic absorber signals; place the panel beating placing the bench, the lower surface of panel beating all with the top contact of four group electromagnetic adsorption wares, four group electromagnetic adsorption wares are opened in control box control, four group electromagnetic adsorption ware tops all produce magnetic force and adsorb fixed processing to the panel beating to the convenience is fixed the panel beating, takes place the skew when preventing its cutting processing, provides practicality and reliability.

The utility model discloses a blanking device for sheet metal component processing, which also comprises two groups of telescopic rods, wherein the tops of the two groups of telescopic rods are both arranged on the movable plate, and the bottoms of the two groups of telescopic rods are both arranged on the mounting plate; when the mounting panel removed, the bottom that the mounting panel drove two sets of telescopic links reciprocated, through setting up two sets of telescopic links, can conveniently support and fix the mounting panel to stability and fastness when improving mounting panel and laser cutting machine and removing improve the reliability.

The utility model discloses a unloader for sheet metal component processing still includes two sets of contact switches, and two sets of contact switches are installed on the bow-shaped frame relatively, and the position of two sets of contact switches corresponds with the position of two sets of cylinders respectively, and two sets of contact switches all are connected with the control box signal, and the control box is connected with first motor signal; when two sets of cylinders removed about, the outside of two sets of cylinders can be respectively with the inboard contact of two sets of contact switches, and two sets of contact switches can be with contact signal transmission to the control box in, and the first motor of control box control is closed, through setting up two sets of contact switches, can conveniently carry on spacingly to two sets of cylinder shift positions, prevent that it from bumping with other devices, improve the practicality.

The utility model discloses a blanking device for sheet metal component processing, still include two sets of spacing framves, two sets of spacing framves are installed respectively in the front side and the rear side of workstation, and the position of two sets of spacing framves is respectively in the front side position and the rear side position correspondence of left side second slider; when the left side second slider carries out the back-and-forth movement, the front side and the rear side of left side second slider can respectively with the inboard contact of two sets of spacing framves, through setting up two sets of spacing framves, can conveniently carry on spacingly to the shift position of left side second slider, prevent that it from taking place to break away from with the left side guide rail, can conveniently carry on spacingly to placing a shift position simultaneously, improve the practicality.

The utility model discloses a blanking device for sheet metal component processing, which also comprises a positioning plate, wherein the positioning plate is arranged at the rear side of the top of the placing table; the panel beating is placed placing the bench, the rear side of panel beating and the front side contact of locating plate, through setting up the locating plate, can conveniently fix a position the panel beating, thereby conveniently make laser cutting machine cut the processing to the panel beating, surpass the panel beating scope and lead to cutting failure when preventing laser cutting machine from removing, fix a position through the panel beating simultaneously, can conveniently carry out the accuracy to the specification and the position of panel beating and calculate, conveniently carry out make full use of to the panel beating, reduce the production of surplus material, improve resource utilization, the practicality and the reliability are improved.

Compared with the prior art, the beneficial effects of the utility model are that: opening a pushing device, wherein the pushing device can drive a placing table and a metal plate to move longitudinally, opening a first motor, the first motor drives a lead screw to rotate through a speed reducer, the lead screw is connected with a screw sleeve in a screw way, the lead screw drives the screw sleeve to move left and right, the screw sleeve drives a movable plate to move left and right, the movable plate drives a laser cutting machine to move transversely through an adjusting device, the movable plate drives two groups of first sliders to respectively slide transversely in two groups of T-shaped grooves through two groups of connecting frames, the height of the laser cutting machine can be adjusted through the adjusting device, the bottom of the laser cutting machine is convenient to be close to or far away from the surface of the metal plate, placing the plate-shaped metal plate on the placing table, opening an adsorption fixing device, performing adsorption fixing treatment on the metal plate through the adsorption fixing device, controlling the laser cutting, the sheet metal is cut by the bottom of the laser cutting machine, the sheet metal is longitudinally moved by controlling the placing table and the sheet metal, the sheet metal is longitudinally cut by the bottom of the laser cutting machine, the sheet metal is transversely moved by controlling the laser cutting machine, the sheet metal is conveniently transversely cut by the bottom of the laser cutting machine, the sheet metal plane is comprehensively cut by the bottom of the laser cutting machine, after the sheet metal is cut, the laser cutting machine is closed, the laser cutting machine is driven by the control adjusting device to move upwards and restore to an initial position, the first motor, the pushing device and the adsorption fixing device are closed, the sheet metal is taken down, the blanking work of the sheet metal is completed, the sheet metal is comprehensively cut, the sheet metal cutting automation degree can be effectively improved, the sheet metal is conveniently cut by equipment in a multi-angle or arc shape, and the functional diversity of the equipment is, when equipment automatic cutout simultaneously, need not the workman and carry out position adjustment to the panel beating, equipment can carry out one shot forming cutting to the panel beating, effectively improves work efficiency, improves practicality and reliability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a right enlarged view of the threaded insert of FIG. 1;

FIG. 3 is an enlarged schematic view of the laser cutting machine of FIG. 1;

FIG. 4 is an enlarged view of the guide rail of FIG. 1;

in the drawings, the reference numbers: 1. a work table; 2. a base; 3. an arched frame; 4. a T-shaped groove; 5. a first slider; 6. a connecting frame; 7. moving the plate; 8. a lead screw; 9. a threaded sleeve; 10. a first motor; 11. a speed reducer; 12. a laser cutting machine; 13. a placing table; 14. a fixed mount; 15. a cylinder; 16. a push rod; 17. a connecting rod; 18. mounting a plate; 19. a guide rail; 20. a second slider; 21. a tooth row; 22. a gear; 23. a rotating shaft; 24. a second motor; 25. insulating fixed blocks; 26. an electromagnetic adsorber; 27. a control box; 28. a telescopic rod; 29. a contact switch; 30. a limiting frame; 31. and (7) positioning the plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the feeding device for sheet metal part processing of the present invention, when in operation, opens the pushing device, the pushing device can drive the placing table 13 and the sheet metal to move longitudinally, the control box 27 controls the first motor 10 to be opened, the first motor 10 drives the lead screw 8 to rotate through the reducer 11, the lead screw 8 is connected with the screw sleeve 9 in a screw manner, the lead screw 8 drives the screw sleeve 9 to move leftwards and rightwards, the screw sleeve 9 drives the moving plate 7 to move leftwards and rightwards, the moving plate 7 drives the laser cutting machine 12 to move transversely through the adjusting device, the moving plate 7 drives the two sets of first sliders 5 through the two sets of connecting frames 6 to respectively slide transversely in the two sets of T-shaped grooves 4, the height of the laser cutting machine 12 can be adjusted through the adjusting device, so as to facilitate the bottom of the laser cutting machine 12 to approach or be away from the surface, the adsorption fixing device is opened and is used for carrying out adsorption fixing treatment on the metal plate, the laser cutting machine 12 is controlled to move downwards by the adjusting device and approach to the upper surface of the metal plate, the laser cutting machine 12 is opened, the metal plate is cut by the bottom of the laser cutting machine 12, the metal plate is longitudinally cut by the bottom of the laser cutting machine 12 by controlling the placing table 13 and the metal plate to move longitudinally, the metal plate is conveniently transversely cut by the bottom of the laser cutting machine 12 by controlling the laser cutting machine 12, so that the metal plate plane is completely cut by the bottom of the laser cutting machine 12, the laser cutting machine 12 is closed after the metal plate is cut, the adjusting device is controlled to drive the laser cutting machine 12 to move upwards and restore to the initial position, the first motor 10, the pushing device and the adsorption fixing device are closed, and the metal plate is taken down, thereby finishing the blanking work of the metal plate.

The utility model discloses the main function who realizes does: the sheet metal cutting automation degree can be effectively improved by comprehensively cutting the sheet metal, the sheet metal can be conveniently cut by the equipment in a multi-angle or arc shape, the functional diversity of the equipment is improved, meanwhile, when the equipment is automatically cut, the position of the sheet metal does not need to be adjusted by workers, the sheet metal can be cut by the equipment in a one-step forming manner, and the working efficiency is effectively improved; the two groups of cylinders are opened, the two groups of cylinders can synchronously push the two groups of push rods to move inwards or outwards, the two groups of push rods respectively stretch or extrude the mounting plate through the two groups of connecting rods, so that the mounting plate can move up and down, the mounting plate can drive the laser cutting machine to move up and down, the bottom of the laser cutting machine is far away from or close to the surface of a metal plate, the position of the laser cutting machine can be conveniently adjusted, the metal plate can be conveniently subjected to feeding and discharging work, and the metal plate can be prevented from colliding with the laser; the pushing device has the working mode that two groups of second motors are turned on, the two groups of second motors can synchronously drive two groups of rotating shafts and gears to rotate, the rotating directions of the two groups of gears are opposite, the two groups of gears are respectively meshed with the two groups of gear rows, and the two groups of gears can push the placing table to move back and forth through the two groups of gear rows, so that the placing table drives the metal plate to move back and forth, and meanwhile, the placing table in a moving state drives two groups of second sliding blocks to respectively slide on the two groups of guide rails; the adsorption fixing device has the working mode that a metal plate is placed on the placing table, the lower surface of the metal plate is in contact with the tops of the four groups of electromagnetic absorbers, the control box controls the four groups of electromagnetic absorbers to be opened, and the tops of the four groups of electromagnetic absorbers generate magnetic force and carry out adsorption fixing treatment on the metal plate, so that the metal plate is conveniently fixed, and the metal plate is prevented from being deviated during cutting treatment; when the mounting plate moves, the mounting plate drives the bottoms of the two groups of telescopic rods to move up and down, and the mounting plate can be conveniently supported and fixed by the two groups of telescopic rods, so that the stability and firmness of the mounting plate and the laser cutting machine during movement are improved; when the two groups of cylinders move left and right, the outer sides of the two groups of cylinders can be respectively contacted with the inner sides of the two groups of contact switches, the two groups of contact switches can transmit contact signals into the control box, the control box controls the first motor to be turned off, and the two groups of contact switches are arranged, so that the moving positions of the two groups of cylinders can be conveniently limited, and the cylinders are prevented from colliding with other devices; when the left second sliding block moves back and forth, the front side and the rear side of the left second sliding block can be respectively contacted with the inner sides of the two groups of limiting frames, and the two groups of limiting frames are arranged, so that the moving position of the left second sliding block can be conveniently limited, the left second sliding block is prevented from being separated from the left guide rail, and meanwhile, the moving position of the placing table can be conveniently limited; the panel beating is placed placing the bench, the rear side of panel beating and the front side contact of locating plate, through setting up the locating plate, can conveniently fix a position the panel beating, thereby conveniently make laser cutting machine cut the processing to the panel beating, surpass the panel beating scope and lead to cutting failure when preventing laser cutting machine from removing, fix a position through the panel beating simultaneously, can conveniently carry out the accuracy to the specification and the position of panel beating and calculate, conveniently carry out make full use of to the panel beating, reduce the production of surplus material, improve resource utilization, the practicality and the reliability are improved.

The blanking device for sheet metal part processing of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the blanking device can be implemented as long as the beneficial effects can be achieved; laser cutting machines, air cylinders, electromagnetic absorbers, control boxes and contact switches are commercially available.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The blanking device for sheet metal part machining is characterized by comprising a workbench (1), a base (2) and a cambered frame (3), wherein the workbench (1) is installed on the base (2), the left side and the right side of the bottom of the cambered frame (3) are respectively installed on the left side and the right side of the top of the workbench (1), the front side and the rear side of the upper portion of the cambered frame (3) are respectively and transversely communicated with T-shaped grooves (4), first sliding blocks (5) are slidably arranged in the two groups of T-shaped grooves (4), connecting frames (6) are respectively arranged on the outer sides of the two groups of first sliding blocks (5), the outer sides of the two groups of connecting frames (6) respectively penetrate through the two groups of T-shaped grooves (4) and extend out of the cambered frame (3), a movable plate (7) is arranged on the upper side inside of the cambered frame (3), the outer sides of the two groups of connecting frames (6) are respectively installed on the, the top of movable plate (7) is provided with lead screw (8), the left side and the right side of lead screw (8) all can be rotated and install on bow-shaped frame (3), screw sleeve (9) have been installed to lead screw (8) upper thread, the bottom of screw sleeve (9) is installed on movable plate (7), the left side of bow-shaped frame (3) is provided with first motor (10) and reduction gear (11), but first motor (10) and reduction gear (11) transmission each other are connected, but the right side output of reduction gear (11) passes bow-shaped frame (3) and is connected with the left end transmission of lead screw (8), the downside of movable plate (7) is provided with adjusting device, adjusting device's bottom is provided with laser cutting machine (12), the upside of workstation (1) is provided with thrust unit, thrust unit's top is provided with places platform (13), the outside of placing platform (13) is provided with adsorbs fixing device.

2. The blanking device for sheet metal part processing according to claim 1, wherein the adjusting device comprises two sets of fixed frames (14), two sets of cylinders (15), two sets of push rods (16), two sets of connecting rods (17) and a mounting plate (18), the upper sides of the two sets of fixed frames (14) are both mounted at the bottom of the moving plate (7), the two sets of cylinders (15) are respectively mounted at the outer sides of the two sets of fixed frames (14), the two sets of push rods (16) are both located at the inner sides of the two sets of fixed frames (14), the outer ends of the two sets of push rods (16) respectively penetrate through the two sets of fixed frames (14) and are respectively mounted at the inner side output ends of the two sets of cylinders (15), the outer sides of the two sets of connecting rods (17) are respectively rotatably mounted at the inner sides of the two sets of push rods (16), the inner sides, the top of the laser cutting machine (12) is fixed at the bottom of the mounting plate (18).

3. The blanking device for sheet metal part machining according to claim 2, characterized in that the pushing device comprises two sets of guide rails (19), two sets of second sliders (20), two sets of gear rows (21), two sets of gears (22), two sets of rotating shafts (23) and two sets of second motors (24), the two sets of guide rails (19) are respectively and longitudinally installed on the left side and the right side of the top of the worktable (1), the two sets of second sliders (20) are respectively and rotatably installed on the two sets of guide rails (19), the tops of the two sets of second sliders (20) are respectively and fixedly installed at the bottom of the placing table (13), the two sets of gear rows (21) are respectively located between the two sets of second sliders (20), the tops of the two sets of gear rows (21) are respectively and longitudinally installed at the bottom of the placing table (13), the two sets of gears (22) are respectively engaged with the two sets of gear rows (21), the two sets of rotating shafts (23) are, the bottoms of the two groups of second motors (24) are fixed on the workbench (1), and the output ends of the upper sides of the two groups of second motors (24) are respectively connected with the bottoms of the two groups of rotating shafts (23).

4. The blanking device for sheet metal part machining according to claim 3, characterized in that the adsorption fixing device comprises four groups of insulation fixing blocks (25), four groups of electromagnetic absorbers (26) and a control box (27), wherein the four groups of insulation fixing blocks (25) are uniformly installed on the side wall of the placing table (13), the four groups of electromagnetic absorbers (26) are respectively installed on the four groups of insulation fixing blocks (25), the tops of the four groups of electromagnetic absorbers (26) are all flush with the top of the placing table (13), the control box (27) is installed on the workbench (1), and the control box (27) is in signal connection with the four groups of electromagnetic absorbers (26).

5. The blanking device for sheet metal part machining according to claim 4, characterized by further comprising two sets of telescopic rods (28), wherein the tops of the two sets of telescopic rods (28) are both mounted on the moving plate (7), and the bottoms of the two sets of telescopic rods (28) are both mounted on the mounting plate (18).

6. The blanking device for sheet metal part machining according to claim 5, characterized by further comprising two sets of contact switches (29), wherein the two sets of contact switches (29) are oppositely installed on the bow-shaped frame (3), the positions of the two sets of contact switches (29) respectively correspond to the positions of the two sets of cylinders (15), the two sets of contact switches (29) are in signal connection with the control box (27), and the control box (27) is in signal connection with the first motor (10).

7. The blanking device for sheet metal part machining according to claim 6, further comprising two sets of limiting frames (30), wherein the two sets of limiting frames (30) are respectively installed at the front side and the rear side of the workbench (1), and the positions of the two sets of limiting frames (30) respectively correspond to the front side position and the rear side position of the left second sliding block (20).

8. The blanking device for sheet metal part machining according to claim 7, characterized in that it further comprises a positioning plate (31), the positioning plate (31) being mounted on the top rear side of the placing table (13).

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