Numerical control sheet metal stamping automatic production device

Abstract

The invention provides a numerical control sheet metal stamping automatic production device, and relates to the field of sheet metal stamping. The stamping device comprises a base, a stand column is fixedly connected to the rear end of the base, a pushing device is arranged on the upper surface of the base and located at the front end of the stand column, a stamping device is arranged on the inner side surface of the stand column and located above the pushing device, and a receiving device is arranged on the front side surface of the base. Through cooperation of the limiting device, the stamping device and the receiving device, sheet metal parts are synchronously taken out after sheet metal machining is completed, the machining efficiency is improved, through cooperation of the positioning device and the pushing device, precise positioning is conducted on machining of sheet metal pieces, waste parts are reduced, the product percent of pass is increased, and waste of sheet metal raw materials is reduced. And through cooperation of the grinding device and the limiting device, the edge position is synchronously ground after the metal plate is treated, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of sheet metal stamping, and particularly to a numerically controlled sheet metal stamping automatic production device. Background Art

[0002] Sheet metal stamping is a process of processing metal sheets using stamping dies, which is usually used for mass production of metal parts with complex shapes. Its process mainly includes blanking, bending, drawing, etc. By applying external force to the metal sheet through the die, the metal sheet is deformed or fractured to form the required shape. Sheet metal stamping is widely used in industries such as automobiles, electronics, electrical appliances, aerospace, etc. Especially when manufacturing metal shells, frames, and components, it has irreplaceable advantages.

[0003] During the process of the stretching die on the metal sheet of the existing sheet metal stamping device, shear edges are usually generated. Especially during the forming process, a part of the metal sheet is sheared off. The sheared edges usually need to be processed subsequently to ensure the quality and performance of the parts. The existing device takes it out for separate grinding, with low efficiency, and generally manually controls the interval of the sheet metal during sheet metal stamping, which easily leads to a large interval of the sheet metal and causes waste. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a numerically controlled sheet metal stamping automatic production device, which solves the problems that sheet metal stamping cannot be automated, cannot be polished synchronously, is inconvenient for material taking, and cannot accurately position the sheet metal.

[0006] (II) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A numerically controlled sheet metal stamping automatic production device, including a base, the rear end of the base is fixedly connected with a column, the upper surface of the base and in front of the column is provided with a pushing device, the inner surface of the column and above the pushing device is provided with a stamping device, the front side surface of the base is provided with a receiving device, the inner surface of the base and below the stamping device is provided with a positioning device, the inner surface of the stamping device and near the lower end is provided with a limiting device, and the inner surface of the base is provided with a grinding device.

[0008] Preferably, the stamping device includes a hydraulic cylinder, a U-shaped rod, a punching column, a fixing plate, a limiting block, a first sliding rod, and a first spring. The hydraulic cylinder is fixedly connected to the inner surface of the column. The upper end of the punching column is fixedly connected to the output end of the fixing plate. The upper end of the U-shaped rod is fixedly connected to the side surface of the column, and the lower end thereof penetrates through the inside of the lower rolling rod. The fixing plate is fixedly connected to the side surface of the punching column. The limiting block is slidably connected to the side surface of the punching column. The lower end of the first sliding rod is fixedly connected to the upper surface of the limiting block. The upper end of the first sliding rod is slidably connected to the inner surface of the fixing plate. The first spring is sleeved on the side surface of the first sliding rod. The upper end of the first spring is fixedly connected to the lower side surface of the fixing plate. The lower end of the first spring is fixedly connected to the upper surface of the limiting block.

[0009] Preferably, the limiting device includes a second sliding rod, a second spring, a limiting slider, a limiting sliding column, a first sliding column, a third sliding rod, a third spring, a second sliding column, a limiting component, and a limiting groove. One end of the second sliding rod is fixedly connected to the left side surface of the limiting slider. The limiting slider and the other end of the second sliding rod are slidably connected to the inner surface of the limiting block. The second spring is sleeved on the side surface of the second sliding rod. One end of the second spring is fixedly connected to the left side surface of the limiting slider. The left end of the second spring is fixedly connected to the inner surface of the second sliding rod. The right end of the limiting slider penetrates through the punching column and is slidably connected to the side surface of the limiting sliding column. A chute for the limiting slider to slide is provided on the inner surface of the punching column. The limiting sliding column is slidably connected to the inner surface of the punching column. The first sliding column is fixedly connected to the upper surface of the limiting sliding column. The second sliding column is fixedly connected to the upper end of the first sliding column.

[0010] Preferably, the upper end of the third sliding rod is fixedly connected to the inner surface of the punching column. The lower end of the third sliding rod is slidably connected to the inner surface of the limiting sliding column. The third spring is sleeved on the side surface of the third sliding rod. The upper end of the third spring is fixedly connected to the inner surface of the punching column. The lower end of the third spring is fixedly connected to the upper side surface of the first sliding column. The first sliding column slides through the third sliding rod and is slidably connected to the inner surface of the punching column. The limiting component is provided on the inner surface of the limiting sliding column and is located at the front end of the limiting sliding column. The limiting groove is opened on the side surface of the limiting sliding column near the lower end and is on the same vertical line as the limiting component. The limiting component can slide up and down inside the limiting groove.

[0011] Preferably, the limiting component includes a sliding block, a fourth sliding rod and a fourth spring. The sliding block is slidably connected to the inner surface of the punching column. One end of the fourth sliding rod is fixedly connected to the front surface of the sliding block. The other end of the fourth sliding rod is slidably connected to the inner surface of the limiting sliding column. The fourth spring is sleeved on the side surface of the fourth sliding rod. One end of the fourth spring is fixedly connected to the front surface of the sliding block. The other end of the fourth spring is fixedly connected to the inner surface of the limiting sliding column. The upper surface of the sliding block on one side of the limiting sliding column and the inner upper surface of the limiting groove are provided with corresponding inclined surfaces.

[0012] Preferably, the picking device includes a sliding table, a toothed plate, a first gear, a second gear, a moving shovel plate and a pressing rack. The sliding table is fixedly connected to the front surface of the base. The inner end of the toothed plate is movably connected to the side surface of the moving shovel plate. The toothed plate is slidably connected to the inner surface of the sliding table. The moving shovel plate is slidably connected to the upper surface of the sliding table through the toothed plate. The first gear is fixedly connected to the side surface of the second gear. The diameter of the second gear is larger than that of the first gear. The first gear and the second gear are rotatably connected to the inner surface of the sliding table. The lower end of the second gear is meshed with the upper surface of the toothed plate. The upper end of the pressing rack is fixedly connected to the side surface of the fixing plate. The lower end of the pressing rack is meshed with the first gear. The upper surface of the sliding table near the front end is inclined.

[0013] Preferably, the positioning device includes an inclined surface block, a connecting rod, a fifth sliding rod, a fifth spring and a pressing rod. The inclined surface block is slidably connected to the inner surface of the base. The upper end of the fifth sliding rod is fixedly connected to the lower surface of the inclined surface block. The lower end of the fifth sliding rod is slidably connected to the inner surface of the base. The fifth spring is sleeved on the side surface of the fifth sliding rod. The upper end of the fifth spring is fixedly connected to the lower surface of the inclined surface block. The lower end of the fifth spring is fixedly connected to the inner surface of the base. The upper end of the pressing rod is fixedly connected to the side surface of the fixing plate. One end of the connecting rod is fixedly connected to the side surface of the inclined surface block. The other end of the connecting rod penetrates through the inner surface of the base and is located at the position of the downward movement direction of the pressing rod.

[0014] Preferably, the pushing device includes a housing, a first motor, a lower rolling rod, an upper rolling rod, a limiting sliding rod, a sixth sliding rod and a sixth spring. The housing is fixedly connected to the upper surface of the base. The first motor is fixedly connected to the side surface of the housing. One end of the lower rolling rod is fixedly connected to the output end of the first motor, and the other end of the lower rolling rod is rotatably connected to the inner surface of the base. The limiting sliding rod is slidably connected to the inner surface of the housing. The upper rolling rod is rotatably connected to the inner surface of the limiting sliding rod. The lower end of the sixth sliding rod is fixedly connected to the upper surface of the limiting sliding rod, and the upper end of the sixth sliding rod is slidably connected to the inner surface of the housing. The sixth spring is sleeved on the side surface of the sixth sliding rod. The upper end of the sixth spring is fixedly connected to the inner surface of the housing, and the lower end of the sixth spring is fixedly connected to the upper side surface of the limiting sliding rod.

[0015] Preferably, the grinding device includes a top core, a limiting ring, a seventh sliding rod, a seventh spring, a rotating disc, a second motor, a toothed ring and a third gear. The lower end of the top core is fixedly connected to the upper surface of the base. The upper end of the seventh sliding rod is fixedly connected to the lower side surface of the limiting ring, and the lower end of the seventh sliding rod is slidably connected to the inner surface of the base. The seventh spring is sleeved on the side surface of the seventh sliding rod. The upper end of the seventh spring is fixedly connected to the lower side surface of the limiting ring, and the lower end of the seventh spring is fixedly connected to the inner surface of the base. The limiting ring is slidably connected to the inner surface of the base. The rotating disc is rotatably connected to the upper surface of the limiting ring. The toothed ring is fixedly connected to the lower side surface of the rotating disc. The second motor is fixedly connected to the inner surface of the limiting ring. The third gear is fixedly connected to the output end of the second motor. The third gear is meshed with the toothed ring. The rotating disc and the limiting ring are sleeved on the side surface of the top core, and the upper surface of the rotating disc is parallel to the upper surface of the top core. A grinding disc is arranged on the upper surface of the rotating disc and at the inner edge.

[0016] (III) Beneficial effects

[0017] The present invention provides a numerically controlled sheet metal stamping automatic production device, which has the following beneficial effects:

[0018] 1. Through the cooperation of the limiting device, the stamping device and the picking device, the sheet metal part is synchronously taken out after the sheet metal processing is completed, improving the processing efficiency.

[0019] 2. Through the cooperation of the positioning device and the pushing device, the processing of the sheet metal is accurately positioned, reducing the generation of waste parts, improving the product qualification rate and reducing the waste of sheet metal raw materials.

[0020] 3. Through the cooperation of the grinding device and the limiting device, the edge is synchronously ground after the sheet metal is processed, improving the working efficiency. Description of the drawings

[0021] Figure 1 The first schematic diagram of the overall structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 2 The first schematic diagram of the overall structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 3 The schematic diagram of the internal structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 4 The schematic diagram of the stamping device structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 5 The first schematic diagram of the limiting device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 6 The second schematic diagram of the limiting device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 7 The second schematic diagram of the limiting device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 8 The schematic diagram of the limiting component structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 9 The schematic diagram of the picking device structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 10 The schematic diagram of the positioning device structure of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 11 The first schematic diagram of the pushing device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 12 The second schematic diagram of the pushing device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 13 of the present invention Figure 12 The enlarged view of part A; Figure 14 The first schematic diagram of the grinding device of a numerically controlled sheet metal stamping automation production device proposed by the present invention; Figure 15 The second schematic diagram of the grinding device of a numerically controlled sheet metal stamping automation production device proposed by the present invention.

[0022] Among them, 1. Base; 2. Taking device; 201. Sliding table; 202. Toothed plate; 203. First gear; 204. Second gear; 205. Moving shovel plate; 206. Pressing rack; 3. Column; 4. Stamping device; 401. Hydraulic cylinder; 402. U-shaped rod; 403. Punching column; 404. Fixed plate; 405. Limiting block; 406. First sliding rod; 407. First spring; 5. Positioning device; 501. Inclined block; 502. Connecting rod; 503. Fifth sliding rod; 504. Fifth spring; 505. Pressing rod; 6. Pushing device; 601. Housing; 602. First motor; 603. Lower rolling rod; 604. Upper rolling rod; 605. Limiting sliding rod; 606. Sixth sliding rod; 607. Sixth spring; 7. Grinding device; 701. Core top; 702. Limiting ring; 703. Seventh sliding rod; 704. Seventh spring; 705. Rotating disc; 706. Second motor; 707. Toothed ring; 708. Third gear; 8. Limiting device; 801. Second sliding rod; 802. Second spring; 803. Limiting slider; 804. Limiting sliding column; 805. First sliding column; 806. Third sliding rod; 807. Third spring; 808. Second sliding column; 809. Limiting component; 80901. Sliding block; 80902. Fourth sliding rod; 80903. Fourth spring; 810. Limiting groove. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1:

[0025] As Figures 1 - 15 shown, the embodiment of the present invention provides a numerically controlled sheet metal stamping automation production device, including a base 1. A column 3 is fixedly connected to the rear end of the base 1. A pushing device 6 is arranged on the upper surface of the base 1 and in front of the column 3. A stamping device 4 is arranged on the inner surface of the column 3 and above the pushing device 6. A taking device 2 is arranged on the front side surface of the base 1. A positioning device 5 is arranged on the inner surface of the base 1 and below the stamping device 4. A limiting device 8 is arranged at a position near the lower end on the inner surface of the stamping device 4. A grinding device 7 is arranged on the inner surface of the base 1.

[0026] The stamping device 4 includes a hydraulic cylinder 401, a U-shaped rod 402, a punching column 403, a fixing plate 404, a limiting block 405, a first sliding rod 406 and a first spring 407. The hydraulic cylinder 401 is fixedly connected to the inner surface of the column 3. The upper end of the punching column 403 is fixedly connected to the output end of the fixing plate 404. The upper end of the U-shaped rod 402 is fixedly connected to the side surface of the column 3 and the lower end penetrates through the inside of the lower rolling rod 603. The fixing plate 404 is fixedly connected to the side surface of the punching column 403. The limiting block 405 is slidably connected to the side surface of the punching column 403. The lower end of the first sliding rod 406 is fixedly connected to the upper surface of the limiting block 405. The upper end of the first sliding rod 406 is slidably connected to the inner surface of the fixing plate 404. The first spring 407 is sleeved on the side surface of the first sliding rod 406. The upper end of the first spring 407 is fixedly connected to the lower side surface of the fixing plate 404. The lower end of the first spring 407 is fixedly connected to the upper surface of the limiting block 405.

[0027] The hydraulic cylinder 401 is an existing device used to press the punching column 403 up and down.

[0028] The limiting device 8 includes a second sliding rod 801, a second spring 802, a limiting slider 803, a limiting sliding column 804, a first sliding column 805, a third sliding rod 806, a third spring 807, a second sliding column 808, a limiting component 809 and a limiting groove 810. One end of the second sliding rod 801 is fixedly connected to the left side surface of the limiting slider 803. The limiting slider 803 and the other end of the second sliding rod 801 are slidably connected to the inner surface of the limiting block 405. The second spring 802 is sleeved on the side surface of the second sliding rod 801. One end of the second spring 802 is fixedly connected to the left side surface of the limiting slider 803. The left end of the second spring 802 is fixedly connected to the inner surface of the second sliding rod 801. The right end of the limiting slider 803 penetrates through the punching column 403 and is slidably connected to the side surface of the limiting sliding column 804. A sliding groove for the limiting slider 803 to slide is provided on the inner surface of the punching column 403. The limiting sliding column 804 is slidably connected to the inner surface of the punching column 403. The first sliding column 805 is fixedly connected to the upper surface of the limiting sliding column 804. The second sliding column 808 is fixedly connected to the upper end of the first sliding column 805.

[0029] The lower end of the limiting sliding column 804 can perform punching operations on the sheet metal parts.

[0030] The upper end of the third sliding rod 806 is fixedly connected to the inner surface of the punching column 403. The lower end of the third sliding rod 806 is slidably connected to the inner surface of the limit sliding column 804. The third spring 807 is sleeved on the side surface of the third sliding rod 806. The upper end of the third spring 807 is fixedly connected to the inner surface of the punching column 403. The lower end of the third spring 807 is fixedly connected to the upper side surface of the first sliding column 805. The first sliding column 805 slides through the third sliding rod 806 and is slidably connected to the inner surface of the punching column 403. The limiting component 809 is arranged on the inner surface of the limit sliding column 804 and is located at the front end position of the limit sliding column 804. The limiting groove 810 is opened on the side surface of the limit sliding column 804 near the lower end and is on the same vertical line as the limiting component 809. The limiting component 809 can slide up and down inside the limiting groove 810.

[0031] The elastic force provided by the first sliding column 805 to the limit sliding column 804 will not cause the limit sliding column 804 to release the limit of the limiting component 809 on the limit sliding column 804 through the limiting groove 810.

[0032] The limiting component 809 includes a sliding block 80901, a fourth sliding rod 80902 and a fourth spring 80903. The sliding block 80901 is slidably connected to the inner surface of the punching column 403. One end of the fourth sliding rod 80902 is fixedly connected to the front side surface of the sliding block 80901. The other end of the fourth sliding rod 80902 is slidably connected to the inner surface of the limit sliding column 804. The fourth spring 80903 is sleeved on the side surface of the fourth sliding rod 80902. One end of the fourth spring 80903 is fixedly connected to the front side surface of the sliding block 80901. The other end of the fourth spring 80903 is fixedly connected to the inner surface of the limit sliding column 804. The upper surface of the sliding block 80901 on one side of the limit sliding column 804 and the inner upper surface of the limiting groove 810 are provided with corresponding inclined surfaces.

[0033] The inclined surface on the sliding block 80901 coincides with the inclined surface inside the limiting groove 810, providing a certain supporting force to the limit sliding column 804.

[0034] The picking device 2 includes a sliding table 201, a toothed plate 202, a first gear 203, a second gear 204, a moving shovel plate 205 and a downward pressing rack 206. The sliding table 201 is fixedly connected to the front side surface of the base 1. The inner end of the toothed plate 202 is movably connected to the side surface of the moving shovel plate 205. The toothed plate 202 is slidably connected to the inner surface of the sliding table 201. The moving shovel plate 205 is slidably connected to the upper side surface of the sliding table 201 through the toothed plate 202. The first gear 203 is fixedly connected to the side surface of the second gear 204. The diameter of the second gear 204 is larger than that of the first gear 203. The first gear 203 and the second gear 204 are rotatably connected to the inner surface of the sliding table 201. The lower end of the second gear 204 is meshed with the upper surface of the toothed plate 202. The upper end of the downward pressing rack 206 is fixedly connected to the side surface of the fixing plate 404. The lower end of the downward pressing rack 206 is meshed with the first gear 203. The upper surface of the sliding table 201 and the position near the front end are inclined.

[0035] When the moving shovel plate 205 moves to the inclined surface position of the sliding table 201, one end is inclined and the workpiece slides down by its own gravity.

[0036] The positioning device 5 includes an inclined surface block 501, a connecting rod 502, a fifth sliding rod 503, a fifth spring 504, a downward pressing rod 505. The inclined surface block 501 is slidably connected to the inner surface of the base 1. The upper end of the fifth sliding rod 503 is fixedly connected to the lower side surface of the inclined surface block 501. The lower end of the fifth sliding rod 503 is slidably connected to the inner surface of the base 1. The fifth spring 504 is sleeved on the side surface of the fifth sliding rod 503. The upper end of the fifth spring 504 is fixedly connected to the lower side surface of the inclined surface block 501. The lower end of the fifth spring 504 is fixedly connected to the inner surface of the base 1. The upper end of the downward pressing rod 505 is fixedly connected to the side surface of the fixing plate 404. One end of the connecting rod 502 is fixedly connected to the side surface of the inclined surface block 501. The other end of the connecting rod 502 penetrates the inner surface of the base 1 and is located at the position of the downward movement direction of the downward pressing rod 505.

[0037] The pushing device 6 includes a housing 601, a first motor 602, a lower rolling rod 603, an upper rolling rod 604, a limiting sliding rod 605, a sixth sliding rod 606, and a sixth spring 607. The housing 601 is fixedly connected to the upper surface of the base 1. The first motor 602 is fixedly connected to the side surface of the housing 601. One end of the lower rolling rod 603 is fixedly connected to the output end of the first motor 602, and the other end of the lower rolling rod 603 is rotatably connected to the inner surface of the base 1. The limiting sliding rod 605 is slidably connected to the inner surface of the housing 601. The upper rolling rod 604 is rotatably connected to the inner surface of the limiting sliding rod 605. The lower end of the sixth sliding rod 606 is fixedly connected to the upper surface of the limiting sliding rod 605, and the upper end of the sixth sliding rod 606 is slidably connected to the inner surface of the housing 601. The sixth spring 607 is sleeved on the side surface of the sixth sliding rod 606. The upper end of the sixth spring 607 is fixedly connected to the inner surface of the housing 601, and the lower end of the sixth spring 607 is fixedly connected to the upper side surface of the limiting sliding rod 605. Anti-slip rubber is provided on the surfaces of the lower rolling rod 603 and the upper rolling rod 604 to prevent the sheet metal from slipping.

[0038] The grinding device 7 includes a top core 701, a limiting ring 702, a seventh sliding rod 703, a seventh spring 704, a rotating disc 705, a second motor 706, a toothed ring 707, and a third gear 708. The lower end of the top core 701 is fixedly connected to the upper surface of the base 1. The upper end of the seventh sliding rod 703 is fixedly connected to the lower side surface of the limiting ring 702, and the lower end of the seventh sliding rod 703 is slidably connected to the inner surface of the base 1. The seventh spring 704 is sleeved on the side surface of the seventh sliding rod 703. The upper end of the seventh spring 704 is fixedly connected to the lower side surface of the limiting ring 702, and the lower end of the seventh spring 704 is fixedly connected to the inner surface of the base 1. The limiting ring 702 is slidably connected to the inner surface of the base 1. The rotating disc 705 is rotatably connected to the upper surface of the limiting ring 702. The toothed ring 707 is fixedly connected to the lower side surface of the rotating disc 705. The second motor 706 is fixedly connected to the inner surface of the limiting ring 702. The third gear 708 is fixedly connected to the output end of the second motor 706. The third gear 708 is meshed with the toothed ring 707. The rotating disc 705 and the limiting ring 702 are sleeved on the side surface of the top core 701 and the upper surface of the rotating disc 705 is parallel to the upper surface of the top core 701. A grinding disc is provided on the upper surface of the rotating disc 705 and at the inner edge. The width of the grinding disc is set to be relatively short to grind the edge of the opening of the drawing die.

[0039] Working principle: Insert the sheet metal between the lower rolling rod 603 and the upper rolling rod 604. The limiting slide rod 605 squeezes and limits the sheet metal under the action of the sixth spring 607. At the same time, start the first motor 602 to drive the lower rolling rod 603 to rotate, driving one end of the sheet metal to move to the position of the positioning device 5 and being limited by the positioning device 5. Then stop the first motor 602, and then start the hydraulic cylinder 401 to drive the punching column 403 to move downward, thereby driving the limiting block 405 and the fixing plate 404 to descend. Before the lower surface of the limiting block 405 touches the upper surface of the base 1, the fixing plate 404 presses the connecting rod 502 downward through the pressing rod 505, thereby driving the inclined block 501 to move downward away from the surface of the base 1. At the same time, the fixing plate 404 drives the first gear 203 to rotate through the pressing rack 206. The rotation of the first gear 203 drives the toothed plate 202 through the second gear 204 to move out the moving shovel plate 205. Then the lower surface of the limiting block 405 touches the sheet metal on the upper surface of the base 1. After that, the punching column 403 continues to move downward, and the edge at the lower end of the punching column 403 punches the sheet metal. When the punching column 403 moves downward, the bottom surface touches the upper surface of the rotating disc 705. The rotating disc 705 moves downward through the seventh slide rod 703 and the seventh spring 704 to perform a drawing die. At this time, the limited sliding column 804 is gradually pushed out by the cut sheet metal into the punching column 403. Then the second slide rod 801 on the limited sliding column 804 gradually moves onto the limiting component 809. At the same time, the upper end of the limited sliding column 804 moves to the position of the first sliding column 805 and provides an elastic force to the limited sliding column 804 through the third spring 807 to press the limited sliding column 804 downward. After the drawing die is completed, at this time, the first sliding column 805 provides a certain elastic force to the limited sliding column 804, and at the same time, the limiting component 809 provides a certain limit to the limited sliding column 804 through the limiting groove 810. Start the hydraulic cylinder 401 to move the punching column 403 upward. At this time, the workpiece is inside the punching column 403. While the punching column 403 moves upward, the upper surface of the rotating disc 705 closely adheres to the bottom of the punching column 403 and moves upward synchronously through the seventh spring 704. When the workpiece inside the punching column 403 moves to the position of the limiting slider 803, the limiting slider 803 clamps the workpiece through the second spring 802. At this time, the limited sliding column 804 pushes the workpiece downward through the elastic force of the first sliding column 805. At this time, start the second motor 706 to drive the third gear 708 to rotate, and drive the rotating disc 705 to rotate through the toothed ring 707, and perform a grinding operation on the bottom of the workpiece through the grinding disc. After the grinding is completed, the punching column 403 continues to move upward. The second sliding column 808 on the limited sliding column 804 gradually moves upward to the bottom end of the U-shaped rod 402 inside the punching column 403, thereby pushing the limited sliding column 804 downward. The inclined surface on the sliding block 80901 leaves the second slide rod 801 through the inclined surface inside the limiting groove 810. Then the limited sliding column 804 continues to move downward to eject the workpiece.Meanwhile, when the fixing plate 404 moves upward, the moving shovel plate 205 is moved below the limit block 405 by pressing down the rack 206 to catch the workpiece. At the same time, the upward movement of the fixing plate 404 drives the inclined block 501 to move upward. When the upper end of the inclined block 501 does not expose the upper surface of the base 1, the first motor 602 is synchronously started to drive the lower rolling rod 603 to rotate to drive the moving part of the sheet metal, and the punched holes on the sheet metal are moved to the position of the inclined block 501. Then, the pressing rod 505 continues to move upward to drive the inclined block 501 to move upward into the hole, and the position of the sheet metal is adjusted through its own inclined setting. After that, the operation is repeated. When the rack 206 moves downward, the moving shovel plate 205 is moved out, and the moving shovel plate 205 is tilted while being tilted by the inclined surface on the sliding table 201 to pour out the workpiece.

[0040] Embodiment 2:

[0041] Based on Embodiment 1, this embodiment:

[0042] On the other side of the upper surface of the base 1 corresponding to the pushing device 6, the same pushing device 6 or a plate for limiting the sheet metal is also provided.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A numerically controlled sheet metal stamping automated production device, comprising a base (1), characterized in that: A column (3) is fixedly connected to the rear end of the base (1). A pushing device (6) is arranged on the upper surface of the base (1) and at the front end of the column (3). A stamping device (4) is arranged on the inner surface of the column (3) and above the pushing device (6). A picking device (2) is arranged on the front side surface of the base (1). A positioning device (5) is arranged on the inner surface of the base (1) and at the lower end of the stamping device (4). A limiting device (8) is arranged at a position near the lower end on the inner surface of the stamping device (4). A grinding device (7) is arranged on the inner surface of the base (1).

2. The automatic production device for numerically controlled sheet metal stamping according to claim 1, wherein: The stamping device (4) includes a hydraulic cylinder (401), a U-shaped rod (402), a punching column (403), a fixing plate (404), a limiting block (405), a first sliding rod (406) and a first spring (407). The hydraulic cylinder (401) is fixedly connected to the inner surface of the column (3). The upper end of the punching column (403) is fixedly connected to the output end of the fixing plate (404). The upper end of the U-shaped rod (402) is fixedly connected to the side surface of the column (3) and the lower end penetrates through the inside of the lower rolling rod (603). The fixing plate (404) is fixedly connected to the side surface of the punching column (403). The limiting block (405) is slidably connected to the side surface of the punching column (403). The lower end of the first sliding rod (406) is fixedly connected to the upper surface of the limiting block (405). The upper end of the first sliding rod (406) is slidably connected to the inner surface of the fixing plate (404). The first spring (407) is sleeved on the side surface of the first sliding rod (406). The upper end of the first spring (407) is fixedly connected to the lower side surface of the fixing plate (404). The lower end of the first spring (407) is fixedly connected to the upper surface of the limiting block (405).

3. An automated production device for numerically controlled sheet metal stamping according to claim 2, characterized in that: The limiting device (8) includes a second sliding rod (801), a second spring (802), a limiting slider (803), a limiting sliding column (804), a first sliding column (805), a third sliding rod (806), a third spring (807), a second sliding column (808), a limiting component (809) and a limiting groove (810). One end of the second sliding rod (801) is fixedly connected to the left side surface of the limiting slider (803), and the other ends of the limiting slider (803) and the second sliding rod (801) are slidably connected to the inner side surface of the limiting block (405). The second spring (802) is sleeved on the side surface of the second sliding rod (801). One end of the second spring (802) is fixedly connected to the left side surface of the limiting slider (803), and the left end of the second spring (802) is fixedly connected to the inner side surface of the second sliding rod (801). The right end of the limiting slider (803) passes through the punching column (403) and is slidably connected to the side surface of the limiting sliding column (804). A sliding groove for the limiting slider (803) to slide is provided on the inner side surface of the punching column (403). The limiting sliding column (804) is slidably connected to the inner side surface of the punching column (403). The first sliding column (805) is fixedly connected to the upper surface of the limiting sliding column (804). The second sliding column (808) is fixedly connected to the upper end of the first sliding column (805).

4. An automated production device for numerical control sheet metal stamping according to claim 3, characterized in that: The upper end of the third sliding rod (806) is fixedly connected to the inner side surface of the punching column (403), and the lower end of the third sliding rod (806) is slidably connected to the inner side surface of the limiting sliding column (804). The third spring (807) is sleeved on the side surface of the third sliding rod (806). The upper end of the third spring (807) is fixedly connected to the inner side surface of the punching column (403), and the lower end of the third spring (807) is fixedly connected to the upper side surface of the first sliding column (805). The first sliding column (805) slides through the third sliding rod (806) and is slidably connected to the inner side surface of the punching column (403). The limiting component (809) is arranged on the inner side surface of the limiting sliding column (804) and is located at the front end of the limiting sliding column (804). The limiting groove (810) is opened on the side surface of the limiting sliding column (804) near the lower end and is on the same vertical line as the limiting component (809). The limiting component (809) can slide up and down inside the limiting groove (810).

5. The automated production device for numerically controlled sheet metal stamping according to claim 3, wherein: The limiting component (809) includes a sliding block (80901), a fourth sliding rod (80902) and a fourth spring (80903). The sliding block (80901) is slidably connected to the inner surface of the punching column (403). One end of the fourth sliding rod (80902) is fixedly connected to the front surface of the sliding block (80901). The other end of the fourth sliding rod (80902) is slidably connected to the inner surface of the limiting sliding column (804). The fourth spring (80903) is sleeved on the side surface of the fourth sliding rod (80902). One end of the fourth spring (80903) is fixedly connected to the front surface of the sliding block (80901). The other end of the fourth spring (80903) is fixedly connected to the inner surface of the limiting sliding column (804). The upper surface of the sliding block (80901) on one side of the limiting sliding column (804) and the inner upper surface of the limiting groove (810) are provided with corresponding inclined surfaces.

6. The automated production device for numerical control sheet metal stamping according to claim 1, wherein: The picking device (2) includes a sliding table (201), a toothed plate (202), a first gear (203), a second gear (204), a moving shovel plate (205) and a downward pressing rack (206). The sliding table (201) is fixedly connected to the front surface of the base (1). The inner end of the toothed plate (202) is movably connected to the side surface of the moving shovel plate (205). The toothed plate (202) is slidably connected to the inner surface of the sliding table (201). The moving shovel plate (205) is slidably connected to the upper side surface of the sliding table (201) through the toothed plate (202). The first gear (203) is fixedly connected to the side surface of the second gear (204). The diameter of the second gear (204) is larger than that of the first gear (203). The first gear (203) and the second gear (204) are rotatably connected to the inner surface of the sliding table (201). The lower end of the second gear (204) is meshed with the upper surface of the toothed plate (202). The upper end of the downward pressing rack (206) is fixedly connected to the side surface of the fixed plate (404). The lower end of the downward pressing rack (206) is meshed with the first gear (203). The upper surface of the sliding table (201) is inclined at a position near the front end.

7. An automatic numerical control sheet metal stamping production device according to claim 1, characterized in that: The positioning device (5) includes an inclined plane block (501), a connecting rod (502), a fifth slide bar (503), a fifth spring (504), and a pressing rod (505). The inclined plane block (501) is slidably connected to the inner surface of the base (1). The upper end of the fifth slide bar (503) is fixedly connected to the lower surface of the inclined plane block (501). The lower end of the fifth slide bar (503) is slidably connected to the inner surface of the base (1). The fifth spring (504) is sleeved on the side surface of the fifth slide bar (503). The upper end of the fifth spring (504) is fixedly connected to the lower surface of the inclined plane block (501). The lower end of the fifth spring (504) is fixedly connected to the inner surface of the base (1). The upper end of the pressing rod (505) is fixedly connected to the side surface of the fixing plate (404). One end of the connecting rod (502) is fixedly connected to the side surface of the inclined plane block (501). The other end of the connecting rod (502) penetrates the inner surface of the base (1) and is located at the position in the downward movement direction of the pressing rod (505).

8. The automatic production device for numerically controlled sheet metal stamping according to claim 1, characterized in that: The pushing device (6) includes a housing (601), a first motor (602), a lower rolling rod (603), an upper rolling rod (604), a limiting slide bar (605), a sixth slide bar (606), and a sixth spring (607). The housing (601) is fixedly connected to the upper surface of the base (1). The first motor (602) is fixedly connected to the side surface of the housing (601). One end of the lower rolling rod (603) is fixedly connected to the output end of the first motor (602). The other end of the lower rolling rod (603) is rotatably connected to the inner surface of the base (1). The limiting slide bar (605) is slidably connected to the inner surface of the housing (601). The upper rolling rod (604) is rotatably connected to the inner surface of the limiting slide bar (605). The lower end of the sixth slide bar (606) is fixedly connected to the upper surface of the limiting slide bar (605). The upper end of the sixth slide bar (606) is slidably connected to the inner surface of the housing (601). The sixth spring (607) is sleeved on the side surface of the sixth slide bar (606). The upper end of the sixth spring (607) is fixedly connected to the inner surface of the housing (601). The lower end of the sixth spring (607) is fixedly connected to the upper side surface of the limiting slide bar (605).

9. The automated production device for numerically controlled sheet metal stamping according to claim 1, characterized in that: The grinding device (7) includes a top core (701), a limiting ring (702), a seventh sliding rod (703), a seventh spring (704), a rotating disc (705), a second motor (706), a toothed ring (707) and a third gear (708). The lower end of the top core (701) is fixedly connected to the upper surface of the base (1). The upper end of the seventh sliding rod (703) is fixedly connected to the lower side surface of the limiting ring (702). The lower end of the seventh sliding rod (703) is slidably connected to the inner side surface of the base (1). The seventh spring (704) is sleeved on the side surface of the seventh sliding rod (703). The upper end of the seventh spring (704) is fixedly connected to the lower side surface of the limiting ring (702). The lower end of the seventh spring (704) is fixedly connected to the inner side surface of the base (1). The limiting ring (702) is slidably connected to the inner side surface of the base (1). The rotating disc (705) is rotatably connected to the upper surface of the limiting ring (702). The toothed ring (707) is fixedly connected to the lower side surface of the rotating disc (705). The second motor (706) is fixedly connected to the inner side surface of the limiting ring (702). The third gear (708) is fixedly connected to the output end of the second motor (706). The third gear (708) is meshed with the toothed ring (707). The rotating disc (705) and the limiting ring (702) are sleeved on the side surface of the top core (701), and the upper surface of the rotating disc (705) is parallel to the upper surface of the top core (701). A grinding disc is arranged on the upper surface of the rotating disc (705) and at the inner edge thereof.

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