An automatic punching machine with positioning function

Abstract

The present invention provides an automatic punching machine with a positioning function, comprising a machine body, a workbench and a punching assembly are arranged on the machine body, a mold is installed above the workbench, a side seat is fixed on one side of the workbench, two pairs of vertical seats are fixed on the side seat at intervals, placement grooves are opened on the surfaces of the two pairs of vertical seats, threaded columns are movably arranged inside the placement grooves through bearings, two sliding seats are slidably arranged inside the placement grooves, the threaded columns penetrate the sliding seats, and the sliding seats are threadedly connected with the threaded columns, two guide rollers are arranged at intervals between each pair of the vertical seats, the guide rollers are movably arranged between the two sliding seats through bearings, and a conveying mechanism is arranged between the two pairs of the vertical seats. The present invention solves the problem that the existing feeding mechanisms are mostly fixed, have low flexibility, and cannot convey steel sheets of different thicknesses.

Description

Technical Field

[0001] The invention relates to the field of punching machines, and in particular to an automatic punching machine with a positioning function. Background Art

[0002] Punching machine is a stamping press. In national production, the stamping process has the advantages of saving materials and energy, high efficiency, low technical requirements for operators, and can make products that cannot be made by mechanical processing through various mold applications. Therefore, its use is becoming more and more extensive. Stamping production is mainly for sheet metal. Through molds, it can make blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., which are widely used in various fields.

[0003] In the steel sheet stamping process, one method is for a worker to hold a steel sheet strip and place one end of the steel sheet strip between the stamping mechanism and the die for stamping, but this method is too inefficient and has certain risks. Another method is to use an automated feeding mechanism to feed the steel sheet between the stamping mechanism and the die for stamping, but the existing feeding mechanisms are mostly fixed. When the thickness of the steel sheet changes, in order to ensure that the steel sheet enters normally between the stamping mechanism and the die in a horizontal posture, it takes a lot of time to disassemble and adjust the feeding mechanism, and the flexibility is low.

[0004] Therefore, it is necessary to provide a new automated punching machine with positioning function to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an automatic punching machine with a positioning function, which solves the problem that the existing feeding mechanisms are mostly fixed, have low flexibility, and cannot transport steel sheets of different thicknesses.

[0006] The automatic punching machine with positioning function provided by the present invention comprises a machine body, a workbench and a punching assembly are arranged on the machine body, a mold is installed above the workbench, a side seat is fixed on one side of the workbench, two pairs of vertical seats are fixed on the side seat at intervals, placement grooves are opened on the surfaces of the two pairs of vertical seats, threaded columns are movably arranged inside the placement grooves through bearings, two slide seats are slidably arranged inside the placement grooves, the threaded columns penetrate the slide seats, and the slide seats are threadedly connected with the threaded columns;

[0007] Two guide rollers are arranged between each pair of the seats, and the guide rollers are movably arranged between the two slide seats through bearings, and a conveying mechanism is arranged between the two pairs of seats;

[0008] The conveying mechanism includes an I-shaped seat, through slots are provided on both sides of the vertical seat, an I-shaped seat is provided between two pairs of the vertical seats, one side of the I-shaped seat passes through the through slot and is fixedly connected to the slide seat;

[0009] Two slide grooves are arranged at intervals on the I-shaped seat, a trapezoidal support plate is fixed on the I-shaped seat, a gantry is arranged directly above the I-shaped seat, and the bottom of the gantry is slidably connected to the slide grooves;

[0010] An electric telescopic rod is installed at the center of the gantry, and the output end of the electric telescopic rod passes through the gantry and is installed with a vacuum suction cup;

[0011] A fixing frame is provided on one side of the gantry, the fixing frame is fixed to the surface of the side seat, a connecting rod is provided at the fixing frame, a first guide rail is fixed on the fixing frame, one end of the connecting rod is fixedly connected to the gantry, the first guide rail passes through the other end of the connecting rod, and the first guide rail is slidably connected to the connecting rod;

[0012] A second guide rail is fixed on the side seat, a stopper is fixed on the top of the second guide rail, a lifting block is slidably arranged on the second guide rail, a swing rod is arranged between the lifting block and the connecting rod, one end of the swing rod is hinged to the lifting block through a pin shaft, and the other end of the swing rod is hinged to the connecting rod through a pin shaft;

[0013] An arc-shaped force transmission rod is fixed on one side of the lifting block, and the arc-shaped force transmission rod is fixedly connected to the stamping assembly.

[0014] In a preferred embodiment, a rotating shaft is disposed at the bottom of each of the four threaded columns, the top of the rotating shaft is fixedly connected to the threaded column, and a worm gear is installed at the bottom of the rotating shaft;

[0015] A limiting seat is fixed at the bottom of the side seat, a mounting shaft is movably provided on the limiting seat through a bearing, both ends of the mounting shaft are connected with a worm, and the worm is meshed with the worm wheel.

[0016] In a preferred embodiment, a crank is mounted on the worm, and the two threaded columns located at both ends of the guide roller have opposite thread rotation directions.

[0017] In a preferred embodiment, a support platform is provided on one side of the mold, one side of the support platform is fixedly connected to the slide seat, a support frame is fixed on the support platform, a positioning platform is fixed on the support frame, and two positioning plates are spaced apart on the positioning platform.

[0018] In a preferred embodiment, an adjustment groove is provided on the positioning platform, and the bottom of the positioning plate is slidably connected to the adjustment groove;

[0019] A bidirectional screw rod is movably arranged inside the adjusting groove, and two ends of the bidirectional screw rod respectively penetrate the bottoms of the two positioning plates, and the positioning plates are threadedly connected to the bidirectional screw rod.

[0020] In a preferred embodiment, the positioning plate and the top of the trapezoidal support plate are located in the same plane, and a hexagonal block is fixed on the bidirectional screw rod.

[0021] In a preferred embodiment, an inclined plate is provided on one side of the workbench, the inclined plate is located below the mold side, and a collection box is provided directly below the inclined plate.

[0022] Beneficial effects of the present invention:

[0023] 1. When the model or type of the steel sheet to be punched changes (the thickness of steel sheets of different models or types is different), the mold needs to be replaced. In order to ensure that the steel sheet enters the mold smoothly in the horizontal direction, the staff can drive the two worms to rotate at the same time by turning the crank. Under the transmission of the worm and the worm wheel, the four threaded columns rotate at the same time, thereby driving the slide to move up or down along the placement groove, so that the guide roller at the bottom and the mold processing area are located in the same horizontal plane, ensuring that the steel sheet can be processed smoothly, simple and convenient operation, saving time and improving efficiency;

[0024] 2. When the slide moves, it will drive the support platform and the trapezoidal support plate to move with it. The support platform and the trapezoidal support plate can provide support force for the steel sheet to prevent it from bending under the action of gravity;

[0025] 3. By using a wrench to rotate the hexagonal block, the bidirectional screw can be driven to rotate. Driven by the bidirectional screw, the two positioning plates move closer to or farther away from each other along the adjustment slot. During operation, the steel sheet moves between the two positioning plates to prevent the workpiece from shifting during operation, thus playing a positioning role.

[0026] 4. When the stamping assembly completes stamping the steel sheet, the electric telescopic rod on the gantry starts to drive the vacuum suction cup to move toward the steel sheet, and the steel sheet is adsorbed by the vacuum suction cup. When the stamping assembly moves upward, it will drive the arc-shaped force transmission rod to move upward, and the arc-shaped force transmission rod drives the lifting block to move upward. At this time, under the action of the rocker arm, the connecting rod moves along the first guide rail toward the mold, and finally the gantry is driven by the connecting rod to move toward the mold, so that the steel sheet is loaded. After loading, the vacuum suction cup is closed and the electric telescopic rod is reset, and the stamping assembly stamps downward. At this time, the gantry is reset under the action of the arc-shaped force transmission rod to achieve the purpose of automatic loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The main structure of the automatic punching machine with positioning function provided by the present invention is a three-dimensional view Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of the stand provided by the present invention;

[0029] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of shown;

[0030] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of B shown;

[0031] Figure 5 A schematic diagram of the structure of the gantry provided by the present invention;

[0032] Figure 6 The main structure of the automatic punching machine with positioning function provided by the present invention is a three-dimensional view Figure 2 ;

[0033] Figure 7 A schematic diagram of the structure of the fixing frame provided by the present invention;

[0034] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of C shown.

[0035] Numbers in the figure: 1, machine body; 2, workbench; 3, stamping assembly; 4, die; 5, side seat; 6, stand seat; 7, placement slot; 8, threaded column; 9, slide seat; 10, guide roller; 11, rotating shaft; 12, worm gear; 13, limit seat; 14, mounting shaft; 15, worm; 16, crank; 17, through slot; 18, work-shaped seat; 19, slide slot; 20, gantry; 21, electric telescopic rod; 22 , vacuum suction cup; 23, fixed frame; 24, connecting rod; 25, first guide rail; 26, second guide rail; 27, stop block; 28, lifting block; 29, rocker arm; 30, arc-shaped force transmission rod; 31, support table; 32, support frame; 33, positioning platform; 34, positioning plate; 35, adjustment slot; 36, two-way screw; 37, trapezoidal support plate; 38, hexagonal block; 39, tilting plate; 40, collection box. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 ,in Figure 1 The main structure of the automatic punching machine with positioning function provided by the present invention is a three-dimensional view Figure 1 ; Figure 2 A schematic diagram of the structure of the stand provided by the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of shown; Figure 4 for Figure 2 A schematic diagram of the enlarged structure of B shown; Figure 5 A schematic diagram of the structure of the gantry provided by the present invention; Figure 6 The main structure of the automatic punching machine with positioning function provided by the present invention is a three-dimensional view Figure 2 ; Figure 7 A schematic diagram of the structure of the fixing frame provided by the present invention; Figure 8 for Figure 7 Schematic diagram of the enlarged structure of C shown.

[0038] In the specific implementation process, Figure 1-Figure 8 As shown, the machine body 1 includes a workbench 2 and a punching assembly 3. Since the punching assembly 3 is a mature technology in this field, its specific working principle will not be described in detail here. A mold 4 is installed above the workbench 2, and an inclined plate 39 is arranged on one side of the workbench 2. The inclined plate 39 is located below the side of the mold 4. A collection box 40 is arranged directly below the inclined plate 39. When the automatic punching machine is in use, the steel sheet passes through two pairs of guide rollers 10 from one side of the punching machine and enters the workbench 2 to be punched by the punching assembly 3. After the punching is completed, the steel sheet will be cut off by the cutter at the stamping assembly 3, and finally fall into the collection box 40 along the inclined plate 39.

[0039] A side seat 5 is fixed to one side of the workbench 2, and two pairs of seats 6 are fixed on the side seat 5 at intervals. A placement groove 7 is opened on the surface of the two pairs of seats 6. A threaded column 8 is movably arranged inside the placement groove 7 through a bearing. Two slide seats 9 are slidably arranged inside the placement groove 7. The threaded column 8 penetrates the slide seat 9, and the slide seat 9 is threadedly connected with the threaded column 8. A rotating shaft 11 is arranged at the bottom of the four threaded columns 8. The top of the rotating shaft 11 is fixedly connected to the threaded column 8, and a worm gear 12 is installed at the bottom of the rotating shaft 11. A limited seat 13 is fixed to the bottom of the side seat 5, and an installation shaft 14 is movably arranged on the limited seat 13 through a bearing. Worms 15 are connected to both ends of the installation shaft 14, and the worm 15 is meshed with the worm wheel 12. A crank 16 is installed on the worm 15. The two threaded columns 8 located at both ends of the guide roller 10 have opposite thread rotation directions, which ensures that when the above-mentioned two threaded columns 8 turn in opposite directions, the two slide seats 9 can still move in the same direction.

[0040] When the type of stamped steel sheet changes, such as thickness, the mold 4 needs to be replaced. In order to ensure that the steel sheet enters the mold 4 smoothly in the horizontal direction, the staff can drive the two worms 15 to rotate simultaneously by turning the crank 16. Under the transmission action of the worm 15 and the worm wheel 12, the four threaded columns 8 rotate at the same time, thereby driving the slide 9 to move upward or downward along the placement groove 7, so that the guide roller 10 at the bottom and the processing area of ​​the mold 4 are located in the same horizontal plane, ensuring that the steel sheet can be processed smoothly.

[0041] Two guide rollers 10 are arranged at intervals between each pair of seats 6, and the guide rollers 10 are movably arranged between the two slide seats 9 through bearings. A conveying mechanism is arranged between the two pairs of seats 6, and the conveying mechanism includes a work-shaped seat 18. Through grooves 17 are provided on both sides of the seat 6. An work-shaped seat 18 is arranged between the two pairs of seats 6. One side of the work-shaped seat 18 passes through the through groove 17 and is fixedly connected to the slide seat 9. Two slide grooves 19 are arranged at intervals on the work-shaped seat 18. A trapezoidal support plate 37 is fixed on the work-shaped seat 18. A gantry 20 is arranged directly above the work-shaped seat 18. The bottom of the gantry 20 is slidably connected to the slide groove 19. An electric telescopic rod 21 is installed at the center of the gantry 20. The output end of the electric telescopic rod 21 passes through the gantry 20 and is installed with a vacuum suction cup 22. When the electric telescopic rod 21 is started, the output end of the electric telescopic rod 21 drives the vacuum suction cup 22 to move toward the steel sheet. When the vacuum suction cup 22 contacts the steel sheet, the vacuum suction cup 22 will adsorb the steel sheet.

[0042] A fixing frame 23 is provided on one side of the gantry 20, and the fixing frame 23 is fixed on the surface of the side seat 5. A connecting rod 24 is provided at the fixing frame 23. A first guide rail 25 is fixed on the fixing frame 23. One end of the connecting rod 24 is fixedly connected to the gantry 20, and the first guide rail 25 runs through the other end of the connecting rod 24, and the first guide rail 25 is slidably connected to the connecting rod 24. A second guide rail 26 is fixed on the side seat 5, and a stopper 27 is fixed on the top of the second guide rail 26. A lifting block 28 is slidably provided on the second guide rail 26. A swing rod 29 is provided between the lifting block 28 and the connecting rod 24, and one end of the swing rod 29 is hinged to the lifting block 28 through a pin shaft, and the other end of the swing rod 29 is hinged to the connecting rod 24 through a pin shaft. An arc-shaped force transmission rod 30 is fixed on one side of the lifting block 28, and the arc-shaped force transmission rod 30 is fixedly connected to the stamping assembly 3. When the stamping assembly 3 moves, the arc-shaped force transmission rod 30 will also be driven to move.

[0043] When the stamping assembly 3 completes stamping the steel sheet, the electric telescopic rod 21 on the gantry 20 starts to drive the vacuum suction cup 22 to move toward the steel sheet, and the steel sheet is adsorbed by the vacuum suction cup 22. When the stamping assembly 3 moves upward, it will drive the arc force transmission rod 30 to move upward, and the arc force transmission rod 30 drives the lifting block 28 to move upward. At this time, under the action of the swing rod 29, the connecting rod 24 moves toward the mold 4 along the first guide rail 25. Finally, the gantry 20 is driven by the connecting rod 24 to move toward the mold 4, so that the steel sheet completes the loading work. After the loading is completed, the vacuum suction cup 22 is closed and the electric telescopic rod 21 is reset, and the stamping assembly 3 stamps downward. At this time, the gantry is reset under the action of the arc force transmission rod 30, so as to achieve the purpose of automatic loading.

[0044] A support platform 31 is provided on one side of the mold 4, and one side of the support platform 31 is fixedly connected to the slide seat 9. A support frame 32 is fixed on the support platform 31, and a positioning platform 33 is fixed on the support frame 32. Two positioning plates 34 are arranged at intervals on the positioning platform 33, and an adjusting slot 35 is opened on the positioning platform 33. The bottom of the positioning plate 34 is slidably connected to the adjusting slot 35, and a bidirectional screw rod 36 is movably arranged inside the adjusting slot 35. The two ends of the bidirectional screw rod 36 respectively pass through the bottom of the two positioning plates 34, and the positioning plates 34 are threadedly connected to the bidirectional screw rod 36. The positioning plates 34 and the tops of the trapezoidal support plates 37 are both located in the same plane. A hexagonal block 38 is fixed on the bidirectional screw rod 36. By using a wrench to rotate the hexagonal block 38, the bidirectional screw rod 36 can be driven to rotate. Driven by the bidirectional screw rod 36, the two positioning plates 34 are close to or away from each other along the adjusting slot 35. During operation, the steel sheet moves between the two positioning plates 34 to prevent the workpiece from shifting during operation, thereby playing a positioning role.

[0045] Working principle of the present invention: When the automatic punching machine is used, the steel sheet passes through two pairs of guide rollers 10 from one side of the punching machine and enters the workbench 2 for punching by the punching assembly 3. After the punching is completed, the steel sheet will be cut off by the cutter at the punching assembly 3 and finally fall into the collection box 40 along the inclined plate 39;

[0046] When the model or type of the steel sheet to be punched changes (the thickness of steel sheets of different models or types is different), the mold 4 needs to be replaced. In order to ensure that the steel sheet smoothly enters the mold 4 in the horizontal direction, the staff can drive the two worms 15 to rotate simultaneously by turning the crank 16. Under the transmission action of the worm 15 and the worm wheel 12, the four threaded columns 8 rotate simultaneously, thereby driving the slide 9 to move upward or downward along the placement groove 7, so that the guide roller 10 at the bottom and the processing area of ​​the mold 4 are located in the same horizontal plane, ensuring that the steel sheet can be processed smoothly;

[0047] When the slide 9 moves, it drives the support platform 31 and the trapezoidal support plate 37 to move with it. The support platform 31 and the trapezoidal support plate 37 can provide support force for the steel sheet to prevent it from bending under the action of gravity.

[0048] By using a wrench to rotate the hexagonal block 38, the bidirectional screw rod 36 can be driven to rotate. Driven by the bidirectional screw rod 36, the two positioning plates 34 move closer to or farther from each other along the adjustment slot 35. During operation, the steel sheet moves between the two positioning plates 34 to prevent the workpiece from being offset during operation.

[0049] When the stamping assembly 3 completes stamping the steel sheet, the electric telescopic rod 21 on the gantry 20 starts to drive the vacuum suction cup 22 to move toward the steel sheet, and the steel sheet is adsorbed by the vacuum suction cup 22. When the stamping assembly 3 moves upward, it will drive the arc-shaped force transmission rod 30 to move upward, and the arc-shaped force transmission rod 30 drives the lifting block 28 to move upward. At this time, under the action of the swing rod 29, the connecting rod 24 moves toward the mold 4 along the first guide rail 25. Finally, the gantry 20 is driven by the connecting rod 24 to move toward the mold 4, so that the steel sheet completes the loading work. After the loading is completed, the vacuum suction cup 22 is closed and the electric telescopic rod 21 is reset, and the stamping assembly 3 stamps downward. At this time, the gantry is reset under the action of the arc-shaped force transmission rod 30, so as to achieve the purpose of automatic loading.

[0050] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automated punching machine with a positioning function, comprising a machine body (1), a workbench (2) and a punching assembly (3) being arranged on the machine body (1), a mold (4) being installed above the workbench (2), characterized in that: A side seat (5) is fixed on one side of the workbench (2), and two pairs of vertical seats (6) are fixed on the side seat (5) at intervals. The surfaces of the two pairs of vertical seats (6) are provided with placement grooves (7), and a threaded column (8) is movably arranged inside the placement groove (7) through a bearing. Two slide seats (9) are slidably arranged inside the placement groove (7), and the threaded column (8) passes through the slide seat (9), and the slide seat (9) is threadedly connected to the threaded column (8); Two guide rollers (10) are arranged at intervals between each pair of the upright seats (6); the guide rollers (10) are movably arranged between the two slide seats (9) via bearings; and a conveying mechanism is arranged between the two pairs of the upright seats (6); The conveying mechanism comprises a work-shaped seat (18), through grooves (17) are provided on both sides of the vertical seat (6), an work-shaped seat (18) is arranged between two pairs of the vertical seats (6), one side of the work-shaped seat (18) passes through the through groove (17) and is fixedly connected to the slide seat (9); Two slide grooves (19) are arranged at intervals on the I-shaped seat (18), a trapezoidal support plate (37) is fixed on the I-shaped seat (18), a gantry (20) is arranged directly above the I-shaped seat (18), and the bottom of the gantry (20) is slidably connected to the slide grooves (19); An electric telescopic rod (21) is installed at the center of the gantry (20); an output end of the electric telescopic rod (21) passes through the gantry (20) and is installed with a vacuum suction cup (22); A fixing frame (23) is provided on one side of the gantry (20), the fixing frame (23) is fixed on the surface of the side seat (5), a connecting rod (24) is provided on the fixing frame (23), a first guide rail (25) is fixed on the fixing frame (23), one end of the connecting rod (24) is fixedly connected to the gantry (20), the first guide rail (25) passes through the other end of the connecting rod (24), and the first guide rail (25) is slidably connected to the connecting rod (24); A second guide rail (26) is fixed on the side seat (5), a stopper (27) is fixed on the top of the second guide rail (26), a lifting block (28) is slidably arranged on the second guide rail (26), a swing rod (29) is arranged between the lifting block (28) and the connecting rod (24), one end of the swing rod (29) is hinged to the lifting block (28) through a pin shaft, and the other end of the swing rod (29) is hinged to the connecting rod (24) through a pin shaft; An arc-shaped force transmission rod (30) is fixed to one side of the lifting block (28), and the arc-shaped force transmission rod (30) is fixedly connected to the punching assembly (3).

2. The automatic punching machine with positioning function according to claim 1, characterized in that: A rotating shaft (11) is disposed at the bottom of each of the four threaded columns (8); the top of the rotating shaft (11) is fixedly connected to the threaded column (8); and a worm gear (12) is installed at the bottom of the rotating shaft (11); A limit seat (13) is fixed at the bottom of the side seat (5), a mounting shaft (14) is movably arranged on the limit seat (13) via a bearing, both ends of the mounting shaft (14) are connected to a worm (15), and the worm (15) is meshed with the worm wheel (12).

3. The automatic punching machine with positioning function according to claim 2, characterized in that: A crank (16) is mounted on the worm (15), and the two threaded columns (8) located at both ends of the guide roller (10) have opposite thread rotation directions.

4. The automatic punching machine with positioning function according to claim 3, characterized in that: A support platform (31) is provided on one side of the mold (4), one side of the support platform (31) is fixedly connected to the slide seat (9), a support frame (32) is fixed on the support platform (31), a positioning platform (33) is fixed on the support frame (32), and two positioning plates (34) are spaced apart on the positioning platform (33).

5. The automatic punching machine with positioning function according to claim 4, characterized in that: The positioning platform (33) is provided with an adjustment groove (35), and the bottom of the positioning plate (34) is slidably connected to the adjustment groove (35); A bidirectional screw rod (36) is movably arranged inside the adjustment groove (35), and two ends of the bidirectional screw rod (36) respectively penetrate the bottom of the two positioning plates (34), and the positioning plates (34) are threadedly connected to the bidirectional screw rod (36).

6. The automatic punching machine with positioning function according to claim 5, characterized in that: The positioning plate (34) and the top of the trapezoidal support plate (37) are both located in the same plane, and a hexagonal block (38) is fixed on the bidirectional screw rod (36).

7. The automatic punching machine with positioning function according to claim 6, characterized in that: An inclined plate (39) is provided on one side of the workbench (2), and the inclined plate (39) is located below the side of the mold (4). A collection box (40) is provided directly below the inclined plate (39).

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