Automatic feeding device capable of flexibly and adaptively adjusting height and width of material sheet

Abstract

The automatic feeding device comprises a material sheet platform and is characterized in that a lifting base table is connected to the lower side of the material sheet platform, the material sheet platform is located on one side of the upper surface of the lifting base table, a lifting mechanism is arranged on the lower side of the lifting base table, and the lifting base table is located on the lower side of the lifting mechanism. The lifting mechanism is fixed to an overall frame of the production line, a sliding table in the horizontal direction is further arranged on the lifting base table, a material stopping block is fixedly arranged on the sliding table and located on the upper surface of the side, corresponding to the width direction of the material sheet platform, of the sliding table, and a horizontal driving mechanism is arranged on the lower side of the sliding table. The driving mechanism is used for driving the sliding table and the stop block to horizontally move in the width direction of the material piece so as to limit and abut against the material piece. According to the automatic feeding device, the positions of the material pieces can be adjusted in a self-adaptive mode according to the thickness and width of the material pieces, and the configuration specifications of auxiliary positioning and adjusting tools are reduced.

Description

Technical Field

[0001] The present invention relates to an automated stamping production line, and particularly to an automated loading device for flexibly and adaptively adjusting the height and width of a sheet in the loading link of automated production. Background Art

[0002] In the field of the stamping automation industry, there are many specifications of sheets used for stamping. In order to achieve stable and reliable automated stamping, in the feeding link, to improve the production rhythm and simplify the operation actions of each rhythm, it is necessary to make special adjustment tooling for sheets of different widths and thicknesses, so as to limit and adjust the sheet to a predetermined position and height, and grab and translate it through a manipulator. In this way, to meet the diverse needs of the production line, the adjustment of the width and height of different sheets results in a variety of specifications of auxiliary tooling, an increase in cost, and also occupies a large amount of inventory space for auxiliary tooling; in addition, the replacement of different specifications of auxiliary tooling will take a lot of manpower and production line time, affecting the overall efficiency of the production line, with a high degree of personnel participation and an increased safety risk. Summary of the Invention

[0003] In view of the needs of the existing automated stamping production line for feeding sheets of different width and thickness specifications, the present invention provides an automated loading device for flexibly and adaptively adjusting the height and width of a sheet, realizing the adaptive adjustment of different sheet widths and thicknesses.

[0004] The object of the present invention is achieved as follows. An automated loading device for flexibly and adaptively adjusting the height and width of a sheet includes a sheet platform. It is characterized in that a lifting base is connected to the lower side of the sheet platform. The sheet platform is located on one side of the upper surface of the lifting base. A lifting mechanism is provided on the lower side of the lifting base. The lifting mechanism is fixed to the overall frame of the production line. A horizontal slide is also provided on the lifting base. A stop block is fixed on the slide. The stop block is located on the upper surface of one side of the slide corresponding to the width direction of the sheet platform. A horizontal driving mechanism is provided on the lower side of the slide for driving the slide and the stop block to move horizontally along the width direction of the sheet to limit and abut against the sheet.

[0005] To facilitate the lifting of the lifting base driving the sheet platform to adapt to the sheet thickness, the lifting mechanism includes two rows of chutes parallelly arranged on the overall frame corresponding to the two side edges of the lifting base in the length direction of the sheet. One end of the same side in the length direction of the two chutes is connected with a fixed block. Lifting guiding structures are provided at the corresponding lower side parts of the upper sides of the chutes. Long sliding bars are respectively arranged in the two chutes. A push rod is connected between the two long sliding bars. The push rod is driven by a servo electric cylinder. The servo electric cylinder is fixed on the fixed block. Curved grooves rising along the length direction are respectively arranged on the inner sides of the two long sliding bars corresponding to each other. Rollers are arranged in the curved grooves in a matching manner. The rollers are fixed to the bottom side of the lifting base through roller bases.

[0006] To facilitate the stable connection between the long slide bar and the lifting base, the push rod is connected to the middle part in the length direction of the two long slide bars. Two curved grooves are respectively arranged on both sides of the long push rod on each long slide bar. The curved grooves on each long slide bar are arranged opposite to the curved grooves on the other long slide bar. Rollers are respectively arranged in each curved groove and are respectively fixed to the lifting base through roller bases.

[0007] To facilitate the stable driving of the push rod to move linearly by the servo electric cylinder, two or three servo electric cylinders are arranged in parallel.

[0008] To facilitate the guiding and limiting of the lifting movement of the lifting base relative to the sliding groove, the lifting guiding structure includes stepped guide surfaces that are in contact and butt-jointed at the corresponding parts on the lower side of the lifting base and the sliding groove. Guide columns and guide holes are also arranged in cooperation between the lifting base and the sliding groove corresponding to the horizontal plane of the stepped guide surface.

[0009] To facilitate the material blocking block to adapt to the width change of the material sheet, the horizontal driving mechanism includes two groups of sliders fixedly arranged on the lower side of the slide table. An intermediate platform is fixedly arranged on the lifting base. Two grooves are arranged in parallel at the positions corresponding to the sliders on the upper surface of the intermediate platform. Each group of sliders corresponds to the grooves respectively. Linear guide rails that cooperate with the sliders are respectively arranged in each groove. A lead screw in the same direction as the linear guide rails is arranged on the intermediate platform between the grooves. A nut seat that cooperates with the lead screw is connected to the lower side of the slide table. One end of the lead screw is driven by a servo motor.

[0010] To facilitate the installation of the lead screw, a pit is arranged at the position corresponding to the lead screw on the intermediate platform. A guide seat for the translation of the nut seat is arranged in the pit. A lead screw seat for rotatably installing the lead screw is embedded on the side of the pit corresponding to the length direction of the lead screw.

[0011] To prevent the material sheet from moving in series during feeding, a magnetic component for magnetically attracting and fixing the material sheet is arranged in the material sheet platform.

[0012] The beneficial effects of the automatic feeding device for flexibly and adaptively adjusting the height and width of the material sheet of the present invention are as follows: A material blocking block with adjustable horizontal position is arranged on the side of the material sheet platform for feeding to abut against and limit the material sheet in the width direction. A liftable lifting base is arranged on the bottom side of the material sheet platform for adjusting the height of the material sheet platform so as to adapt to the change in the height of the material sheet. The position of the material blocking block is adjusted by driving the horizontal driving mechanism through a servo motor, and the height of the lifting base is adjusted by driving the lifting mechanism through a servo electric cylinder, so as to realize the adjustment of the material width and material thickness. The servo drive component can adaptively call the pre-debugged and preset formula parameters for adjustment according to the feeding parameters of the material width and material thickness, with high flexibility, reducing the degree of manual participation, and avoiding safety accidents and damages caused by improper operation. Description of the Drawings

[0013] Figure 1 Schematic diagram of the automatic loading device for flexibly and adaptively adjusting the height and width of the sheet material of the present invention Figure 1 .

[0014] Figure 2 Schematic diagram of the automatic loading device for flexibly and adaptively adjusting the height and width of the sheet material of the present invention Figure 2 (Removing the occlusion of the sliding table).

[0015] Figure 3 Schematic diagram of the automatic loading device for flexibly and adaptively adjusting the height and width of the sheet material of the present invention Figure 3 (Bottom side view).

[0016] Figure 4 Partial view of the lifting guide structure.

[0017] Among them, 1 is the sheet material; 2 is the sheet material platform; 3 is the sliding table; 4 is the intermediate platform; 5 is the lead screw; 6 is the material blocking block 6; 7 is the lifting base; 8 is the sliding groove; 9 is the fixing block; 10 is the servo motor; 11 is the linear guide rail 11; 12 is the slider; 13 is the guide post; 14 is the nut seat; 15 is the lead screw seat; 16 is the guide seat; 17 is the servo electric cylinder; 18 is the long slide bar; 1801 is the curved surface groove; 19 is the roller base; 20 is the push rod; 21 is the guide hole. Specific embodiments

[0018] The following will describe in detail the automatic loading device for flexibly and adaptively adjusting the height and width of the sheet material of the present invention with reference to the accompanying drawings. For the convenience of description of the direction, the narrow side of the sheet material is defined as the width direction ( Figure 1 the Y direction shown), and the other longer side is defined as the length direction ( Figure 1 the X direction shown).

[0019] As Figure 1 — Figure 4 shown, the automatic loading device for flexibly and adaptively adjusting the height and width of the sheet material of the present invention includes a sheet material platform 22, a lifting base 7 is connected to the lower side of the sheet material platform 2, the sheet material platform 2 is located on one side of the upper surface of the lifting base 7, the sheet material 1 is placed flat on the sheet material platform 2 through a feeding mechanism or a material grabbing mechanism, and in order to ensure the stability of the sheet material, a magnetic component is provided inside the sheet material platform 2 for magnetically attracting the sheet material; a lifting mechanism is provided on the lower side of the lifting base 7, the lifting mechanism is fixed to the overall frame of the production line, and the overall frame is located below the lifting mechanism (the overall frame is not shown in the attached drawing for clearly showing the bottom side structure), a horizontal sliding table 3 is further provided on the lifting base 7, a material blocking block 6 is fixed on the sliding table 3, the material blocking block 6 is located on the upper surface of one side of the sliding table 3 corresponding to the width direction (Y direction) of the sheet material platform 2, and a horizontal driving mechanism is provided on the lower side of the sliding table 3 for driving the sliding table 3 and the material blocking block 6 to horizontally move along the width direction of the sheet material to limit and abut against the side edge of the sheet material 1.

[0020] To facilitate the realization of the lifting of the lifting base 7 to drive the sheet platform 2 up and down to adapt to the thickness of the sheet, the lifting mechanism includes two rows of sliding grooves 8 arranged in parallel on the overall frame corresponding to the two side edges of the lower side of the lifting base 7 that are consistent with the length direction (X-axis direction) of the sheet 1. One end of the same side of the length direction of the two sliding grooves 8 is connected with a fixed block 9. A lifting guiding structure is provided at the corresponding lower side part of the upper side of the sliding groove 8 and the lifting base 7, which is used to limit the lifting base 7 to only perform lifting motion. Two long sliding strips 18 are respectively arranged in the two sliding grooves 8. A push rod 20 is connected between the two long sliding strips 18. The push rod 20 is driven by a servo electric cylinder 17, and the servo electric cylinder 17 is fixed on the fixed block 9. Curved grooves 1801 that lift along their length directions are respectively arranged on the inner sides of the two long sliding strips 18 corresponding to each other. Rollers are arranged in the curved grooves 1801 in a matching manner, and the rollers are fixed to the bottom side of the lifting base 7 through roller bases 19. When the servo electric cylinder pushes the push rod 20 and the push rod drives the slider 18 to slide in the sliding groove 8, during the relative rolling of the roller base 19 connected to the lifting base 7 and the roller in the curved groove 1801, when the roller relatively rolls along the length direction of the curved groove 1801, the whole, together with the roller base 19, lifts and descends, so as to realize the lifting of the lifting base 7 and the sheet platform 2, realize the adjustment of the height of the sheet platform, adapt to the thickness of the sheet, and make the height of the upper surface of the sheet the same after adjustment for sheets of different thicknesses on the sheet platform 2, ensuring that the manipulator accurately grabs and transfers materials.

[0021] To facilitate the stable connection between the long sliding strip 18 and the lifting base 7, the push rod 20 is connected to the middle part of the length direction of the two long sliding strips 18. Two curved grooves 1801 are respectively arranged on both sides of the long push rod 20 along each long sliding strip 18. The curved grooves 1801 on each long sliding strip 18 are arranged opposite to the curved grooves 1801 on the other long sliding strip 18. Rollers are respectively arranged in the curved grooves 1801 in a matching manner and are respectively fixed to the lifting base 7 through roller bases 19.

[0022] To facilitate the stable driving of the push rod 20 to move horizontally by the servo electric cylinder 17, two or three servo electric cylinders 17 are arranged in parallel. In this embodiment, three are arranged in parallel.

[0023] To facilitate the guiding and limiting of the lifting motion of the lifting base 7 relative to the sliding groove 8, the lifting guiding structure includes stepped guide surfaces 12 that are in contact and butt with each other and are arranged at the corresponding parts of the lower side of the lifting base 7 and the sliding groove 8. As Figure 4 shown, a guide hole 21 is provided on the sliding groove 8 corresponding to the horizontal step surface of the stepped guide surface 12. A guide post 13 is fixedly embedded at the position of the lifting base 7 corresponding to the guide hole 21. One end of the guide post 13 is fixed on the lifting base 7, and the other end is fitted into the guide 21 hole. When the lifting base 7 pre-lifts and moves, it performs stable lifting motion under the dual guiding and limiting effects of the stepped guide surface 12 and the guide post 13 and the guide hole 21.

[0024] For facilitating the adjustment of the sheet to a suitable position according to its width, the position of the sheet 1 on the sheet platform 2 is adjusted by abutting against the side edge in the width direction by the stop block 6 according to the sheet width, as Figure 2 shown. The horizontal drive mechanism of the present invention includes two sets of sliders 12 fixedly arranged on the lower side of the slide table 3. An intermediate platform 4 is fixedly arranged on the lifting base platform 7. Two grooves are arranged in parallel at positions corresponding to the sliders 12 on the upper surface of the intermediate platform 4. Each set of sliders 12 corresponds to the grooves respectively. A linear guide rail 11 cooperating with the slider 12 is arranged in each groove. A lead screw 5 in the same direction as the linear guide rail 11 is arranged on the intermediate platform 4 between the grooves. A nut seat 14 cooperating with the lead screw 5 is fixedly connected to the lower side of the slide table 3. One end of the lead screw 5 is driven by a servo motor 10. During the installation of the lead screw, a square pit is arranged at the position corresponding to the lead screw 5 on the intermediate platform 4. A guide seat 16 for the translation of the nut seat 14 is arranged in the pit. A guide port for guiding and limiting the nut seat 14 is arranged on the guide seat 16. A lead screw seat 15 for rotatably installing the lead screw 5 is embedded on the side of the pit corresponding to the length direction of the lead screw 5. The other end of the lead screw 5 is rotatably supported by the other parallel side edge of the pit and the end extends out of the outside of the intermediate platform 4 and is drivingly connected to the servo motor 10. For the above horizontal drive mechanism of this embodiment, according to the width of the sheet 1, the servo motor drives the lead screw to rotate, so that the nut seat 14 drives the slide table 3 and the stop block 6 to translate to an appropriate position for stop block adjustment, realizing the precise adjustment of the sheet to the predetermined placement position in the width direction according to the sheet width.

[0025] The above automatic loading device for flexible adaptive adjustment of the height and width of the sheet of the present invention is located in the feeding link of the automatic sheet metal stamping production line, and is used to assist the manipulator to grasp and translate to accurately send the sheet to the position adjustment of the sheet before the stamping link. In the production debugging preparation stage, the corresponding adjustment parameter formulas of the servo motor 10 and the servo electric cylinder 17 are preset in advance according to different sheet widths and thicknesses. When sheets of different thicknesses and widths pass through the fixed platform 2, the control system automatically adjusts the corresponding preset formula parameters, controls the servo motor 10 and the servo electric cylinder 17 to make corresponding action adjustments to adapt to the adaptive flexible adjustment of the width and height of the sheet. During the production process, there is no need for manual adjustment and frequent replacement, greatly reducing the production line downtime waiting time and improving the overall efficiency of the production line.

Claims

1. An automated loading device with flexible adaptive adjustment of the height and width of a sheet material, comprising a sheet material platform, characterized in that, A lifting base is connected to the lower side of the sheet platform. The sheet platform is located on one side of the upper surface of the lifting base. A lifting mechanism is provided below the lifting base, and the lifting mechanism is fixed to the overall frame of the production line. A horizontal slide is further provided on the lifting base. A material blocking block is fixed on the slide. The material blocking block is located on the upper surface of one side corresponding to the width direction of the slide and the sheet platform. A horizontal driving mechanism is provided below the slide for driving the slide and the material blocking block to horizontally move along the width direction of the sheet to limit and abut against the sheet.

2. The automatic loading device for flexibly and adaptively adjusting the height and width of the sheet according to claim 1, wherein The lifting mechanism includes two rows of sliding grooves parallelly arranged on the overall frame corresponding to the two side edges of the lower side of the lifting base along the length direction of the sheet. One end of the same side in the length direction of the two sliding grooves is connected with a fixed block. A lifting guiding structure is provided at the lower side part corresponding to the sliding grooves of the lifting base. Long sliding bars are respectively arranged in the two sliding grooves. A push rod is connected between the two long sliding bars. The push rod is driven by a servo electric cylinder, and the servo electric cylinder is fixed on the fixed block. Curved grooves ascending along the length direction are respectively arranged on the inner sides of the two long sliding bars corresponding to each other. Rollers are arranged in the curved grooves in a matching manner, and the rollers are fixed to the bottom side of the lifting base through roller bases.

3. The automatic loading device with flexible self-adaptive adjustment of the height and width of the sheet material according to claim 2, wherein The push rod is connected to the middle part in the length direction of the two long sliding bars. Two curved grooves are respectively arranged on both sides of each long sliding bar along the long push rod. The curved grooves on each long sliding bar are arranged oppositely to the curved grooves on the other long sliding bar. Rollers are respectively arranged in the curved grooves in a matching manner and are respectively fixed to the lifting base through roller bases.

4. The automatic loading device with flexible self-adaptive adjustment of the height and width of the sheet material according to claim 2, characterized in that, Two or three servo electric cylinders are arranged in parallel.

5. The automatic loading device with flexible self-adaptive adjustment of the height and width of the sheet according to claim 2, characterized in that, The lifting guiding structure includes stepped guiding surfaces which are arranged at the lower side part of the lifting base corresponding to the sliding grooves and are in contact and butt joint with each other. A guide post and a guide hole are further arranged in a matching manner between the lifting base and the sliding grooves corresponding to the horizontal planes of the stepped guiding surfaces.

6. The automatic loading device for flexibly and adaptively adjusting the height and width of the sheet according to claim 1, characterized in that The horizontal driving mechanism includes two groups of sliders fixedly arranged at the lower side of the slide. An intermediate platform is fixedly arranged on the lifting base. Two grooves are arranged in parallel at the positions corresponding to the sliders on the upper surface of the intermediate platform. Each group of sliders corresponds to the grooves respectively. Linear guide rails matched with the sliders are respectively arranged in each groove. A lead screw in the same direction as the linear guide rails is arranged on the intermediate platform between the grooves. A nut seat matched with the lead screw is connected to the lower side of the slide. One end of the lead screw is driven by a servo motor.

7. The automatic loading device with flexible adaptive adjustment of the height and width of the sheet according to claim 1, characterized in that, A pit is arranged at the position corresponding to the lead screw on the intermediate platform. A guiding seat for the translation of the nut seat is arranged in the pit. A lead screw seat for rotatably installing the lead screw is embedded on the side of the pit corresponding to the length direction of the lead screw.

8. The automatic feeding device with flexible adaptive adjustment of the height and width of the sheet material according to claim 1, wherein A magnetic component for magnetically fixing the sheet is arranged in the sheet platform.

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