Automatic feeding device for metal plate stamping

Abstract

The invention discloses an automatic feeding device for metal plate stamping, and belongs to the technical field of metal plate stamping feeding, and the automatic feeding device is technically characterized in that the automatic feeding device comprises a conveyor, a first workbench and a second workbench, through an arranged one-by-one discharging mechanism, the material circulation speed can be remarkably increased, the manual carrying and waiting time is shortened, and the working efficiency is improved. Through the arrangement of the grabbing and discharging mechanism and the limiting and pushing mechanism, grabbing and movement control of metal plates can be well achieved, and therefore the automatic grabbing and moving process is achieved, the operation process is greatly simplified, the physical burden of workers is relieved, and the working efficiency is improved. Compared with a traditional manual feeding mode, the feeding device has the advantages that the feeding time can be greatly shortened, production interruption is reduced, stamping equipment can continuously and efficiently operate, the automation degree is high, and the production efficiency is improved. The device has the advantages of being convenient to feed and punch, low in cost and high in automation degree.

Description

Technical Field

[0001] The invention relates to the field of metal plate stamping feeding, and in particular to an automatic feeding device for metal plate stamping processing. Background Art

[0002] With the continuous deepening of global industrial automation, the sheet metal stamping industry has higher and higher requirements for efficiency and automation. Stamping is an important part of sheet metal processing and is widely used in industries such as automobiles, home appliances, electronics, and construction. Sheet metal stamping is a processing method based on metal plastic deformation. It uses molds and stamping equipment to apply pressure to metal sheets to cause plastic deformation or separation of the sheets, thereby obtaining parts with specific shapes, sizes, and performance.

[0003] At present, in the manufacturing process of traditional stamping parts, the loading of materials often needs to be completed manually, which is not only inefficient, but also prone to safety hazards during operation. Some companies with a higher degree of automation use robots or manipulators to handle the loading of stamping parts, but the equipment structure is complex, the cost investment is high, and the floor space is large. It is difficult for general small and medium-sized enterprises to accept it, the cost of use is high, and it cannot meet the actual use needs.

[0004] Therefore, it is necessary to provide an automatic feeding device for metal sheet stamping processing to solve the above problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, an embodiment of the present invention aims to provide an automatic feeding device for metal sheet stamping processing, aiming to solve the technical problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An automatic feeding device for metal sheet stamping processing, comprising a conveyor, a first workbench and a second workbench, a stamping machine for stamping processing is arranged on the second workbench, the conveyor, the first workbench and the second workbench are connected one by one, a placing rack for placing the metal sheet to be processed is arranged on one side of the conveyor, the placing rack is fixedly installed on the outer side of the conveyor through a fixing plate, and further comprising: A material unloading mechanism is installed at the connection between the placement rack and the vertical plate, and is used to drive the metal plates in the placement rack to unload the materials one by one. The material unloading mechanism comprises a push block for pushing the materials, a first limit slide bar and a push rod. The push block is installed at the bottom of the placement rack through the rotation and traction of the first limit slide bar. The number of the push rods is several and they are lifted and installed on the push block. A grabbing and unloading mechanism is installed on the vertical plate and is used to grab the conveyed metal sheet for unloading. The grabbing and unloading mechanism is driven by the unloading mechanism one by one. The grabbing and unloading mechanism includes an electric suction cup, a traction plate and a triangular connecting plate for grabbing and unloading connection. The electric suction cup is installed on the triangular connecting plate through the rotation and traction of the traction plate. The triangular connecting plate is provided with a driving groove for driving the electric suction cup to grab and move; A limiting material pushing mechanism is installed on the first workbench and is used for limiting the position of the metal sheet conveyed and for material unloading and pushing. The limiting material pushing mechanism includes a first wedge block and a second wedge block. The first wedge block and the second wedge block are fixedly connected, and the second wedge block is arranged toward the second workbench. The first wedge block and the second wedge block are both movably installed on the first workbench. A groove for avoiding the connection between the first wedge block and the second wedge block is provided on the first workbench. A positioning and clamping mechanism is installed on the second workbench and is used to position, clamp and fix the metal sheet conveyed to the second workbench. The positioning and clamping mechanism includes a first limit plate for fixed-point limit connection and a clamping plate for movable clamping connection. The clamping plate is limited and slidably connected to the second workbench. The first limit plate is fixedly installed on the second workbench. The clamping plate is clamped and connected through the telescopic control of the electric push rod and the rotation of the second connecting rod.

[0007] As a further solution of the present invention, the one-by-one feeding mechanism also includes a rotating block and an L-shaped connecting plate connected to a pushing rod on the pushing block for driving a cyclic pushing operation, the L-shaped connecting plate is rotatably installed on the pushing block via a first connecting shaft, a first limiting slide bar is fixedly connected to the L-shaped connecting plate, the first limiting slide bar is slidably connected to the rotating block, the rotating block is rotatably installed on the fixed block via a second connecting shaft, the fixed block is fixedly installed on the vertical plate, a first spring is provided at the connection between the L-shaped connecting plate and the rotating block, the second connecting shaft is rotatably connected to a third connecting shaft via a first synchronous belt, the third connecting shaft is fixedly connected to the output shaft of the motor, and the motor is fixedly installed on the outer side of the vertical plate.

[0008] As a further solution of the present invention, the one-by-one feeding mechanism also includes a third limit slide bar, a movable sleeve and a fourth limit slide bar for driving the pushing block to move linearly. The third limit slide bar is fixedly installed on the placement rack through the first mounting plate and the second mounting plate. The movable sleeve is slidably connected to the third limit slide bar, and the movable sleeve is fixedly connected to the fourth limit slide bar. The fourth limit slide bar is linearly slidably connected to the pushing block, and a guide extension plate is provided on the side of the placement rack facing the conveyor.

[0009] As a further solution of the present invention, the one-by-one feeding mechanism also includes a screw and an adjusting knob for adjusting the pushing height of the pushing rod, one end of the pushing rod is fixedly connected to a lifting plate, a screw is threadedly connected to the lifting plate, the screw is rotatably mounted on the pushing block, a worm wheel is fixedly connected to the screw rod, a worm is meshingly connected to the worm wheel, the worm is rotatably mounted on a fixed seat, the fixed seat is fixedly mounted on the pushing block, and one end of the worm is fixedly connected to an adjusting knob.

[0010] As a further solution of the present invention, the grabbing and releasing mechanism also includes a guide sleeve and a limit seat for driving the electric suction cup to move and connect, the electric suction cup is fixedly mounted on the traction rod through a suction cup fixing frame, the traction rod is slidably connected to the guide sleeve, the guide sleeve is slidably connected to the limit seat through a dovetail slider, the limit seat is provided with a dovetail groove that is adapted to be slidably connected to the dovetail slider, and the limit seat is fixedly connected to the triangular connecting plate.

[0011] As a further solution of the present invention, the grabbing and releasing mechanism also includes a driving slide rod and a fourth connecting shaft for driving the traction plate to rotate, the traction plate is fixedly connected to the fifth connecting shaft, the fifth connecting shaft is rotatably installed on the triangular connecting plate, the driving slide rod is adapted to be slidably connected to the driving groove, a sliding block is fixedly connected to the driving slide rod, and one end of the traction rod is rotatably connected to the driving slide rod, a sliding groove adapted to be slidably connected to the sliding block is provided on the traction plate, the fifth connecting shaft is rotatably connected to the fourth connecting shaft through a second synchronous belt, a second gear is fixedly connected to the fourth connecting shaft, the second gear is meshedly connected to the first gear, the first gear is fixedly connected to the third connecting shaft, and the diameter of the second gear is larger than the first gear.

[0012] As a further solution of the present invention, the limiting pushing mechanism also includes a guide rod and a second spring for driving the first wedge block and the second wedge block to reset the connection, the first wedge block is slidably connected to the first workbench through the guide rod, a second spring is arranged at the internal connection between the first wedge block and the first workbench, a proximity block is arranged at the bottom of the first wedge block, a proximity switch is arranged on one side of the proximity block, and the proximity switch is arranged and installed inside the first workbench.

[0013] As a further solution of the present invention, the positioning and clamping mechanism also includes a third connecting rod and a lifting sleeve for driving the clamping plate to perform mobile clamping and guiding. The clamping plate is limited and slidably connected to the second workbench. One end of the first connecting rod is rotatably connected to the clamping plate, and the other end of the first connecting rod is rotatably connected to the second connecting rod. The second connecting rod is rotatably installed inside the second workbench through a sixth connecting shaft. The third connecting rod is fixedly connected to the second connecting rod, and one end of the fourth connecting rod is rotatably connected to the third connecting rod. The other end of the fourth connecting rod is hingedly installed on the lifting sleeve through a first hinge seat. The lifting sleeve is limited and slidably connected to the second limiting slide rod, and the second limiting slide rod is fixedly installed inside the second workbench through the second limiting plate.

[0014] As a further solution of the present invention, the positioning and clamping mechanism also includes an electric push rod for clamping drive, which is hingedly mounted on the second connecting rod on one side through a fourth hinge seat, and the piston rod of the electric push rod is hingedly mounted on the second connecting rod on the other side through a third hinge seat.

[0015] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects: The present invention can significantly speed up the material flow rate by setting up a one-by-one material unloading mechanism, reduce manual handling and waiting time, and thus improve the overall production efficiency. In addition, the material pushing can be adapted by adjusting the height of the push rod, so that a more stable material unloading operation can be achieved, thereby improving the flexibility and versatility of the production line, so that the same equipment can process plates of various thickness specifications, and significantly reducing production costs.

[0016] The grabbing and releasing mechanism and the limit pushing mechanism are set up, which can well realize the grabbing and controlled movement of metal plates, thereby realizing the automated grabbing and moving process, greatly simplifying the operation process, reducing the physical burden of workers, and improving work efficiency and operation safety. It solves the shortcomings of traditional technology that the transportation of metal plates needs to rely on manual operation, high labor intensity and prone to safety hazards, and at the same time has low cost, thus meeting the production needs of modern industry.

[0017] The positioning and clamping mechanism can well complete the clamping and fixing operation of the metal sheet without human intervention. At this time, the stamping machine above the second workbench can perform the corresponding stamping processing operation. This operation method significantly improves the stability of the metal sheet in the subsequent processing process, reduces the errors caused by human factors, and thus greatly improves production efficiency.

[0018] The present invention can continuously and stably feed metal sheets into the stamping equipment for stamping processing without manual intervention, thereby significantly improving production efficiency. Compared with the traditional manual loading method, the present device can greatly shorten the loading time and reduce production interruptions, so that the stamping equipment can continue to operate efficiently and has a high degree of automation, further reducing production costs and improving production flexibility and adaptability.

[0019] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the invention.

[0021] Figure 2 It is a rear structural schematic diagram of an embodiment of the invention.

[0022] Figure 3 It is a schematic diagram of the state structure of the electric suction cup discharging and returning to its original position in an embodiment of the invention.

[0023] Figure 4 It is a schematic diagram of the connection structure inside the vertical plate in an embodiment of the invention.

[0024] Figure 5 It is a schematic diagram of the connection structure of the mobile sleeve in the embodiment of the invention.

[0025] Figure 6 Schematic diagram of the connection structure of the first limiting sliding rod in an embodiment of the invention.

[0026] Figure 7 It is a schematic diagram of the connection structure of the pushing block in the embodiment of the invention.

[0027] Figure 8 It is a schematic diagram of the bottom structure of the push block connection in the embodiment of the invention.

[0028] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of A.

[0029] Fig.10 It is a schematic diagram of the connection structure of the second workbench in the embodiment of the invention.

[0030] Fig.11 Schematic diagram of the connection structure between the first wedge block and the second wedge block in an embodiment of the invention.

[0031] Fig.12 It is a schematic diagram of the connection structure on the back side of the triangular connecting plate in an embodiment of the invention.

[0032] Fig.13 It is a schematic diagram of the explosion structure of the triangular connecting plate connection in the embodiment of the invention.

[0033] Fig.14 It is a schematic diagram of the connection structure inside the second workbench in an embodiment of the invention.

[0034] 1. Conveyor; 2. First workbench; 3. Second workbench; 4. Punch press; 5. Vertical plate; 6. Fixed plate; 7. Placement rack; 8. Metal sheet; 9. Push block; 10. Push rod; 11. Lifting plate; 12. Screw; 13. Worm gear; 14. Worm; 15. Adjustment knob; 16. Fixed seat; 17. First connecting shaft; 18. L-shaped connecting plate; 19. First limit slide bar; 20. First spring; 21. Rotating block; 22. Fixed block; 23. Second connecting shaft; 24. First synchronous belt; 25. Third connecting shaft; 26. First gear; 27. Second gear; 28. Fourth connecting shaft; 29. ​​Second synchronous belt; 30. Fifth connecting shaft; 31. Triangular connecting plate; 32. Driving groove; 33. Driving slide bar; 34. Slide block; 35. Traction plate; 36. Slide groove; 37. Traction rod; 38, suction cup fixing frame; 39, electric suction cup; 40, first wedge block; 41, second wedge block; 42, guide rod; 43, second spring; 44, approach block; 45, approach switch; 46, first limit plate; 47, clamping plate; 48, first connecting rod; 49, second connecting rod; 50, sixth connecting shaft; 51, third connecting rod; 52, fourth connecting rod; 53, first articulated seat; 54, lifting sleeve; 55, second limit slide bar; 56, second limit plate; 57, third articulated seat; 58, fourth articulated seat; 59, electric push rod; 60, limit seat; 61, guide sleeve; 62, dovetail slider; 63, dovetail slide groove; 64, first mounting plate; 65, third limit slide bar; 66, moving sleeve; 67, fourth limit slide bar; 68, second mounting plate; 69, guide extension plate; 70, motor. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0037] Example 1

[0038] See also Figures 1 to 12, an automatic feeding device for metal sheet stamping processing, comprising a conveyor 1, a first workbench 2 and a second workbench 3, a punching machine 4 for stamping processing is arranged on the second workbench 3, the conveyor 1, the first workbench 2 and the second workbench 3 are connected one by one, a placing rack 7 for placing a metal sheet 8 to be processed is arranged on one side of the conveyor 1, and further comprising: The one-by-one unloading mechanism is installed at the connection between the placement rack 7 and the vertical plate 5, and is used to drive the metal plates 8 in the placement rack 7 to be unloaded one by one. The one-by-one unloading mechanism includes a pushing block 9 for pushing connection, a first limiting slide bar 19 and a pushing rod 10. The pushing block 9 is installed at the bottom of the placement rack 7 through the rotation and traction activity of the first limiting slide bar 19. There are several pushing rods 10 and they are lifted and installed on the pushing block 9.

[0039] Furthermore, the one-by-one feeding mechanism also includes a rotating block 21 and an L-shaped connecting plate 18 connected to the pushing rod 10 on the pushing block 9 for cyclically pushing the materials. The L-shaped connecting plate 18 is rotatably installed on the pushing block 9 through the first connecting shaft 17. A first limiting slide bar 19 is fixedly connected to the L-shaped connecting plate 18. The first limiting slide bar 19 is slidably connected to the rotating block 21. The rotating block 21 is rotatably installed on the fixed block 22 through the second connecting shaft 23. The fixed block 22 is fixedly installed on the vertical plate 5. A first spring 20 is provided at the connection between the L-shaped connecting plate 18 and the rotating block 21. The second connecting shaft 23 is rotatably connected to the third connecting shaft 25 through the first synchronous belt 24. The third connecting shaft 25 is fixedly connected to the output shaft of the motor 70. The motor 70 is fixedly installed on the outer side of the vertical plate 5.

[0040] Furthermore, the one-by-one feeding mechanism also includes a third limit slide bar 65, a movable sleeve 66 and a fourth limit slide bar 67 for driving the push block 9 to move linearly. The third limit slide bar 65 is fixedly installed on the placement rack 7 through the first mounting plate 64 and the second mounting plate 68. The movable sleeve 66 is slidably connected to the third limit slide bar 65. The movable sleeve 66 is fixedly connected to the fourth limit slide bar 67. The fourth limit slide bar 67 is linearly slidably connected to the push block 9. A guide extension plate 69 is provided on the side of the placement rack 7 facing the conveyor 1.

[0041] Furthermore, the one-by-one feeding mechanism also includes a screw rod 12 and an adjusting knob 15 for adjusting the pushing height of the pushing rod 10. One end of the pushing rod 10 is fixedly connected to the lifting plate 11, and the screw rod 12 is threadedly connected to the lifting plate 11. The screw rod 12 is rotatably installed on the pushing block 9. A worm gear 13 is fixedly connected to the screw rod 12, and a worm 14 is meshingly connected to the worm gear 13. The worm 14 is rotatably installed on a fixed seat 16, and the fixed seat 16 is fixedly installed on the pushing block 9. One end of the worm 14 is fixedly connected to the adjusting knob 15.

[0042] Preferably, when the metal sheet 8 is subjected to the punching process, the metal sheet 8 is stacked and placed on the placement rack 7 in advance, and the output shaft of the motor 70 drives the third connecting shaft 25 to rotate, and the rotating block 21 on the second connecting shaft 23 is driven to rotate clockwise under the synchronous driving action of the first synchronous belt 24 (as can be seen from the figure). Figure 1 ), Figure 6 It is shown as rotating counterclockwise, that is, rotating in the direction close to the conveyor 1. At this time, under the guiding traction rotation of the L-shaped connecting plate 18 and the first limit slide bar 19 and the reset action of the first spring 20, the push block 9 moves in the direction close to the conveyor 1. At this time, the push rod 10 on the push block 9 facilitates pushing the metal sheet 8 on the bottom layer of the placement rack 7 onto the conveyor 1 for transportation. When the movable sleeve 66 moves to the second mounting plate 68, the push block 9 slides downward along the fourth limit slide bar 67 under the elastic action of the first spring 20. After the first limit slide bar 19 drives the rotating block 21 to rotate one circle, the push block 9 continues to rise to the initial position, thereby forming a cycle, which is convenient for the repeated discharge setting one by one.

[0043] At the same time, according to the thickness of the metal plate 8, the adjustable rotating adjustment knob 15 drives the worm 14 to rotate, and the screw 12 is driven to rotate under the meshing connection between the worm 14 and the worm wheel 13, so that the lifting plate 11 drives the pushing rod 10 to be adjusted in the height direction, which is convenient for pushing materials according to metal plates 8 of different thicknesses, and has a wide range of uses.

[0044] This method of unloading the stacked metal plates 8 one by one onto the conveyor 1 can significantly speed up the material flow rate, reduce manual handling and waiting time, and thus improve the overall production efficiency. In addition, the height of the push rod 10 can be adjusted to adapt the pushing of the material, so that a more stable unloading operation can be achieved, which improves the flexibility and versatility of the production line, allowing the same equipment to process plates of various different thickness specifications, significantly reducing production costs.

[0045] It should be particularly noted that the third connecting shaft 25 and the second connecting shaft 23 are both provided with pulleys which are synchronously connected with the first synchronous belt 24 .

[0046] Example 2

[0047] like Figures 1 to 13As shown, on the basis of Example 1, this embodiment further includes a grabbing and discharging mechanism, which is installed on the vertical plate 5 and is used to grab the conveyed metal sheet 8 for discharging processing. The grabbing and discharging mechanism is driven by the material discharging mechanism one by one. The grabbing and discharging mechanism includes an electric suction cup 39, a traction plate 35 and a triangular connecting plate 31 for grabbing and discharging connection. The electric suction cup 39 is installed on the triangular connecting plate 31 through the rotation and traction of the traction plate 35. The triangular connecting plate 31 is provided with a driving groove 32 for driving the electric suction cup 39 to grab and move; The limiting pushing mechanism is installed on the first workbench 2, and is used for limiting the conveyed metal sheet 8 and for pushing the material out. The limiting pushing mechanism includes a first wedge block 40 and a second wedge block 41. The first wedge block 40 and the second wedge block 41 are fixedly connected, and the second wedge block 41 is arranged toward the second workbench 3. The first wedge block 40 and the second wedge block 41 are both movably installed on the first workbench 2, and a groove is provided on the first workbench 2 for avoiding the connection between the first wedge block 40 and the second wedge block 41.

[0048] Furthermore, the grabbing and releasing mechanism also includes a guide sleeve 61 and a limit seat 60 for driving the electric suction cup 39 to move and connect. The electric suction cup 39 is fixedly installed on the traction rod 37 through the suction cup fixing frame 38. The traction rod 37 is slidably connected to the guide sleeve 61. The guide sleeve 61 is slidably connected to the limit seat 60 through a dovetail slider 62. A dovetail groove 63 adapted for sliding connection with the dovetail slider 62 is provided on the limit seat 60. The limit seat 60 is fixedly connected to the triangular connecting plate 31.

[0049] Furthermore, the grabbing and releasing mechanism also includes a driving slide bar 33 and a fourth connecting shaft 28 for driving the traction plate 35 to rotate. The traction plate 35 is fixedly connected to the fifth connecting shaft 30, and the fifth connecting shaft 30 is rotatably installed on the triangular connecting plate 31. The driving slide bar 33 is adapted to be slidably connected to the driving groove 32. A sliding block 34 is fixedly connected to the driving slide bar 33, and one end of the traction rod 37 is rotatably connected to the driving slide bar 33. A sliding groove 36 adapted to be slidably connected to the sliding block 34 is provided on the traction plate 35. The fifth connecting shaft 30 is rotatably connected to the fourth connecting shaft 28 through the second synchronous belt 29. The fourth connecting shaft 28 is fixedly connected to the second gear 27, and the second gear 27 is meshingly connected to the first gear 26. The first gear 26 is fixedly connected to the third connecting shaft 25, and the diameter of the second gear 27 is larger than that of the first gear 26.

[0050] Furthermore, the limiting pushing mechanism also includes a guide rod 42 and a second spring 43 for driving the first wedge block 40 and the second wedge block 41 to reset the connection. The first wedge block 40 is slidably connected to the first workbench 2 through the guide rod 42. The second spring 43 is arranged at the internal connection between the first wedge block 40 and the first workbench 2. A proximity block 44 is arranged at the bottom of the first wedge block 40. A proximity switch 45 is arranged on one side of the proximity block 44. The proximity switch 45 is arranged and installed inside the first workbench 2.

[0051] Preferably, in this embodiment, the metal sheet 8 unloaded onto the conveyor 1 is conveyed by the conveyor 1. When the metal sheet 8 moves onto the first workbench 2, it is limited by the first wedge block 40 on the first workbench 2. The force transmitted by the conveyor 1 is not sufficient to push the metal sheet 8 over the first wedge block 40, so that the motor 70 drives the third connecting shaft 25 to rotate and the first gear 26 is correspondingly driven to rotate. At this time, the fourth connecting shaft 28 is driven to rotate under the meshing connection relationship between the first gear 26 and the second gear 27. The fourth connecting shaft 28 correspondingly drives the traction plate 35 on the fifth connecting shaft 30 to rotate under the synchronous driving action of the second synchronous belt 29. Since the first gear 26 rotates in the clockwise direction following the second connecting shaft 23, the traction plate 35 is correspondingly driven to rotate counterclockwise under the rotation connection relationship of the second gear 27. It can be seen Fig.10 and Fig.13 As shown, during the rotation of the traction plate 35 on the triangular connecting plate 31, since the driving slide bar 33 is adapted to be slidably connected to the driving groove 32 on the triangular connecting plate 31, and the sliding block 34 is adapted to be slidably connected to the sliding groove 36 on the traction plate 35, at this time, under the rotation traction of the traction plate 35 and the guiding traction of the guide sleeve 61, the driving slide bar 33 moves around the curve of the driving groove 32, so that the electric suction cup 39 falls on the metal plate 8 on the first workbench 2 for adsorption and fixation, and during the continuous rotation of the traction plate 35, the electric suction cup 39 adsorbs the metal plate 8 and moves it toward the second workbench 3.

[0052] Due to the wedge-shaped setting of the first wedge block 40 and the thrust of the metal sheet 8 adsorbed by the electric suction cup 39, the first wedge block 40 can be driven to drive the second wedge block 41 to move downward to the bottom of the first workbench 2. When the proximity block 44 on the first wedge block 40 drops to contact the proximity switch 45 in the first workbench 2, the traction plate 35 just rotates to the groove position close to the upper part of the driving groove 32. At this time, the electric suction cup 39 no longer adsorbs the metal sheet 8, and the electric suction cup 39 rises with the rotation of the traction plate 35. At this time, the side of the metal sheet 8 just moves away from the first wedge block 40, so that the first wedge block 40 and the second wedge block 41 are driven to rise synchronously under the elastic pushing action of the second spring 43. At this time, under the action of the inclined surface of the second wedge block 41, the metal sheet 8 is correspondingly driven to move in the direction close to the first limit plate 46, so as to facilitate the transfer of the metal sheet 8 on the first workbench 2 to the second workbench 3 for subsequent stamping processing. Figure 1 and Figure 3 shown.

[0053] The electric suction cup 39 can grasp and control the movement of the metal sheet 8 through the driving groove 32 on the triangular connecting plate 31 and the transmission coordination setting of the traction plate 35, thereby realizing an automated grasping and moving process, greatly simplifying the operating process, reducing the physical burden of workers, and improving work efficiency and operation safety. It solves the disadvantages of traditional technology that the transportation of metal sheets requires reliance on manual operation, high labor intensity and prone to safety hazards, and at the same time has low cost, thereby meeting the production needs of modern industry.

[0054] It should be particularly noted that pulleys which are synchronously connected to the second synchronous belt 29 are provided on the fourth connecting shaft 28 and the fifth connecting shaft 30 .

[0055] Example 3

[0056] like Figure 1 to Figure 14 As shown, based on the above-mentioned embodiments, this embodiment further includes a positioning and clamping mechanism, which is installed on the second workbench 3 and is used to position, clamp and fix the metal plate 8 conveyed to the second workbench 3. The positioning and clamping mechanism includes a first limit plate 46 for fixed-point limit connection and a clamping plate 47 for movable clamping connection. The clamping plate 47 is connected to the second workbench 3 in a limited sliding manner. The first limit plate 46 is fixedly installed on the second workbench 3. The clamping plate 47 is clamped and connected by the telescopic control of the electric push rod 59 and the rotation of the second connecting rod 49.

[0057] Furthermore, the positioning and clamping mechanism also includes a third connecting rod 51 and a lifting sleeve 54 for driving the clamping plate 47 to perform mobile clamping and guiding. The clamping plate 47 is slidably connected to the second workbench 3. One end of the first connecting rod 48 is rotatably connected to the clamping plate 47. The other end of the first connecting rod 48 is rotatably connected to the second connecting rod 49. The second connecting rod 49 is rotatably installed inside the second workbench 3 through a sixth connecting shaft 50. The third connecting rod 51 is fixedly connected to the second connecting rod 49. One end of the fourth connecting rod 52 is rotatably connected to the third connecting rod 51. The other end of the fourth connecting rod 52 is hingedly installed on the lifting sleeve 54 through a first hinge seat 53. The lifting sleeve 54 is slidably connected to the second limiting slide bar 55. The second limiting slide bar 55 is fixedly installed inside the second workbench 3 through a second limiting plate 56.

[0058] Furthermore, the positioning and clamping mechanism also includes an electric push rod 59 for clamping drive, which is hingedly mounted on the second connecting rod 49 on one side through a fourth hinge seat 58, and the piston rod of the electric push rod 59 is hingedly mounted on the second connecting rod 49 on the other side through a third hinge seat 57.

[0059] Preferably, in this embodiment, when the metal sheet 8 moves onto the second workbench 3, the electric push rod 59 is extended, thereby driving the lifting sleeve 54 pulled by one end of the third connecting rod 51 to move below the second limiting slide rod 55 under the hinged relationship between the third hinged seat 57 and the fourth hinged seat 58 and the rotational connection relationship of the sixth connecting shaft 50 on the second connecting rod 49, and driving the clamping plates 47 to move closer to each other under the rotational connection relationship of the first connecting rod 48, thereby completing the clamping and fixing operation of the metal sheet 8 well without manual intervention. At this time, the stamping machine 4 above the second workbench 3 can perform corresponding stamping processing operations. This operation mode significantly improves the stability of the metal sheet 8 in the subsequent processing process, reduces the errors caused by human factors, and thus greatly improves the production efficiency.

[0060] It should be particularly noted that the components in this application are all universal standard parts or components well known to those skilled in the art, which effectively solve the technical problems raised in the background technology.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for metal sheet stamping, comprising a conveyor (1), a first workbench (2) and a second workbench (3), wherein a punching machine (4) for stamping is arranged on the second workbench (3), characterized in that: The conveyor (1), the first workbench (2) and the second workbench (3) are connected one by one in sequence. A placement rack (7) for placing the metal sheet (8) to be processed is provided on one side of the conveyor (1). The placement rack (7) is fixedly mounted on the outer side of the conveyor (1) via a fixing plate (6). The conveyor (1) further comprises: A one-by-one unloading mechanism is installed at the connection between the placement rack (7) and the vertical plate (5) and is used to drive the metal plates (8) in the placement rack (7) to be unloaded one by one. The one-by-one unloading mechanism comprises a pushing block (9) for pushing the material, a first limiting slide bar (19) and a pushing rod (10). The pushing block (9) is installed at the bottom of the placement rack (7) through the rotation and traction activity of the first limiting slide bar (19). The pushing rod (10) is in a plurality of numbers and is installed on the pushing block (9) by lifting. A grabbing and discharging mechanism, which is installed on the vertical plate (5) and is used to grab the conveyed metal plate (8) for discharging processing, the grabbing and discharging mechanism is driven by the material discharging mechanism one by one, the grabbing and discharging mechanism comprises an electric suction cup (39) for grabbing and discharging connection, a traction plate (35) and a triangular connecting plate (31), the electric suction cup (39) is installed on the triangular connecting plate (31) through the rotation and traction activity of the traction plate (35), and the triangular connecting plate (31) is provided with a driving groove (32) for driving the electric suction cup (39) to grab and move; A limiting material pushing mechanism is installed on the first workbench (2) and is used for limiting the position of the metal sheet (8) conveyed therefrom and for material unloading and pushing. The limiting material pushing mechanism comprises a first wedge block (40) and a second wedge block (41). The first wedge block (40) and the second wedge block (41) are fixedly connected, and the second wedge block (41) is arranged toward the second workbench (3). The first wedge block (40) and the second wedge block (41) are both movably installed on the first workbench (2). A groove is provided on the first workbench (2) for avoiding the connection between the first wedge block (40) and the second wedge block (41); A positioning clamping mechanism is installed on the second workbench (3) and is used to position, clamp and fix the metal plate (8) conveyed to the second workbench (3). The positioning clamping mechanism comprises a first limit plate (46) for fixed-point limit connection and a clamping plate (47) for movable clamping connection. The clamping plate (47) is connected to the second workbench (3) in a limited sliding manner. The first limit plate (46) is fixedly installed on the second workbench (3). The clamping plate (47) is clamped and connected by the telescopic control of the electric push rod (59) and the rotation of the second connecting rod (49).

2. The automatic feeding device for metal sheet stamping according to claim 1, characterized in that: The step-by-step unloading mechanism further comprises a rotating block (21) and an L-shaped connecting plate (18) connected to the pushing rod (10) on the pushing block (9) for cyclically pushing materials. The L-shaped connecting plate (18) is rotatably mounted on the pushing block (9) via a first connecting shaft (17). A first limiting sliding bar (19) is fixedly connected to the L-shaped connecting plate (18). The first limiting sliding bar (19) is slidably connected to the rotating block (21). The rotating block (21) is rotatably mounted on a fixed block (22) via a second connecting shaft (23). The fixed block (22) is fixedly mounted on the vertical plate (5). A first spring (20) is provided at the connection between the L-shaped connecting plate (18) and the rotating block (21). The second connecting shaft (23) is rotatably connected to a third connecting shaft (25) via a first synchronous belt (24). The third connecting shaft (25) is fixedly connected to an output shaft of a motor (70). The motor (70) is fixedly mounted on the outer side of the vertical plate (5).

3. The automatic feeding device for metal sheet stamping according to claim 2, characterized in that: The one-by-one feeding mechanism also includes a third limit slide bar (65), a movable sleeve (66) and a fourth limit slide bar (67) for driving the push block (9) to move linearly, the third limit slide bar (65) being fixedly mounted on the placement rack (7) via a first mounting plate (64) and a second mounting plate (68), the movable sleeve (66) being slidably connected to the third limit slide bar (65), the movable sleeve (66) being fixedly connected to the fourth limit slide bar (67), the fourth limit slide bar (67) being linearly slidably connected to the push block (9), and a guide extension plate (69) being provided on the side of the placement rack (7) facing the conveyor (1).

4. The automatic feeding device for metal sheet stamping according to claim 3, characterized in that: The one-by-one feeding mechanism further comprises a screw (12) and an adjusting knob (15) for adjusting the feeding height of the pushing rod (10); one end of the pushing rod (10) is fixedly connected to a lifting plate (11); the lifting plate (11) is threadedly connected to the screw (12); the screw (12) is rotatably mounted on the pushing block (9); a worm wheel (13) is fixedly connected to the screw (12); a worm (14) is meshingly connected to the worm wheel (13); the worm (14) is rotatably mounted on a fixing seat (16); the fixing seat (16) is fixedly mounted on the pushing block (9); and one end of the worm (14) is fixedly connected to the adjusting knob (15).

5. The automatic feeding device for metal sheet stamping according to claim 2, characterized in that: The grabbing and unloading mechanism further comprises a guide sleeve (61) and a limit seat (60) for driving the electric suction cup (39) to move and connect, the electric suction cup (39) is fixedly mounted on the traction rod (37) via a suction cup fixing frame (38), the traction rod (37) is slidably connected to the guide sleeve (61), the guide sleeve (61) is slidably connected to the limit seat (60) via a dovetail slider (62), the limit seat (60) is provided with a dovetail slide groove (63) adapted to be slidably connected to the dovetail slider (62), and the limit seat (60) is fixedly connected to the triangular connecting plate (31).

6. The automatic feeding device for metal sheet stamping according to claim 5, characterized in that: The grabbing and unloading mechanism further comprises a driving slide bar (33) and a fourth connecting shaft (28) for driving the traction plate (35) to rotate, the traction plate (35) being fixedly connected to the fifth connecting shaft (30), the fifth connecting shaft (30) being rotatably mounted on the triangular connecting plate (31), the driving slide bar (33) being adapted to be slidably connected to the driving groove (32), a sliding block (34) being fixedly connected to the driving slide bar (33), and one end of the traction rod (37) being rotatably connected to the driving slide bar (33), The traction plate (35) is provided with a sliding groove (36) adapted to be slidably connected to the sliding block (34); the fifth connecting shaft (30) is rotatably connected to the fourth connecting shaft (28) via a second synchronous belt (29); the fourth connecting shaft (28) is fixedly connected to a second gear (27); the second gear (27) is meshingly connected to the first gear (26); the first gear (26) is fixedly connected to the third connecting shaft (25); and the diameter of the second gear (27) is larger than that of the first gear (26).

7. The automatic feeding device for metal sheet stamping according to claim 1, characterized in that: The position-limiting push mechanism further comprises a guide rod (42) and a second spring (43) for driving the first wedge block (40) and the second wedge block (41) to reset and connect, the first wedge block (40) being slidably connected to the first workbench (2) via the guide rod (42), a second spring (43) being arranged at the internal connection between the first wedge block (40) and the first workbench (2), a proximity block (44) being arranged at the bottom of the first wedge block (40), a proximity switch (45) being arranged and installed inside the first workbench (2).

8. The automatic feeding device for metal sheet stamping according to claim 1, characterized in that: The positioning clamping mechanism also includes a third connecting rod (51) and a lifting sleeve (54) for driving the clamping plate (47) to move and clamp and guide. The clamping plate (47) is slidably connected to the second workbench (3). One end of the first connecting rod (48) is rotatably connected to the clamping plate (47). The other end of the first connecting rod (48) is rotatably connected to the second connecting rod (49). The second connecting rod (49) is rotatably mounted on the second workbench (3) via a sixth connecting shaft (50). The third connecting rod (51) is fixedly connected to the second connecting rod (49), one end of the fourth connecting rod (52) is rotatably connected to the third connecting rod (51), the other end of the fourth connecting rod (52) is hingedly mounted on the lifting sleeve (54) through a first hinge seat (53), the lifting sleeve (54) is limitedly slidably connected to the second limiting slide rod (55), and the second limiting slide rod (55) is fixedly mounted on the inside of the second workbench (3) through a second limiting plate (56).

9. The automatic feeding device for metal sheet stamping according to claim 8, characterized in that: The positioning and clamping mechanism also includes an electric push rod (59) for clamping drive, wherein the electric push rod (59) is hingedly mounted on the second connecting rod (49) on one side via a fourth hinge seat (58), and a piston rod of the electric push rod (59) is hingedly mounted on the second connecting rod (49) on the other side via a third hinge seat (57).

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