A robot automatic die-cutting production line
By designing an automated robotic punching production line, magnetic plates and T-shaped plates were used to solve the problems of sheet material feeding sequence and interference, achieving efficient and stable production and processing, and reducing costs and failure rates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO ZHIYI AUTO PARTS CO LTD
- Filing Date
- 2022-12-30
- Publication Date
- 2026-07-21
AI Technical Summary
Existing automated punching production lines rely on numerous detection and control procedures, resulting in a high failure rate. In particular, interference is prone to occur during the loading and unloading process, leading to equipment damage and high production and equipment costs.
The automated robotic punching production line utilizes a first conveyor line, a feeding conveyor line, and a guide hopper to complete the sheet material conveying. Through magnetic plate adsorption and T-shaped sheet material design, it ensures sequential and interference-free sheet material conveying. Combined with an L-shaped lifting frame and a pushing cylinder, it completes continuous feeding, reducing the risk of interference to the punching equipment.
It has achieved efficient and stable production and processing, reduced production costs, reduced reliance on monitoring and control equipment, avoided equipment interference, and improved the reliability of the production line.
Smart Images
Figure CN115890812B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sheet metal punching technology, and in particular to a robotic automatic punching production line. Background Technology
[0002] With the rapid development of manufacturing technology, product design is moving towards integration and unification. People hope to use the simplest production processes to process workpieces and use assembly lines to replace manual labor to complete production. This will enable fully automated production, reduce labor costs, and ensure that the equipment can basically guarantee 24-hour uninterrupted processing, achieving efficient and stable production.
[0003] Currently used automated punching production lines rely heavily on detection and control programs, resulting in a high failure rate. In particular, during the loading and unloading process on the punching equipment, the robotic arm's grasping, pausing, loading, waiting, and unloading processes all require precise timing control by the program. Otherwise, interference with the punching equipment can easily occur, causing damage to the processing equipment. Moreover, the production and equipment costs of such integrated control production lines are relatively high. Therefore, this application provides a robotic automated punching production line. Summary of the Invention
[0004] The purpose of this application is to solve the problem that currently used automatic punching production lines rely on a large number of detection and control programs, resulting in a high failure rate. In particular, during the process of loading and unloading materials onto the punching equipment on the production line, the robotic arm needs to precisely control the timing of a series of processes such as grabbing, pausing, loading, waiting, and unloading. Otherwise, it is easy to interfere with the punching equipment and damage the processing equipment. Moreover, the production cost and equipment cost of such integrated control production lines are relatively high.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a robotic automatic punching production line, including a first conveyor line, a second conveyor line, and a punching device. A feeding conveyor line is arranged above the first conveyor line, and the conveying directions of the first conveyor line and the feeding conveyor line are parallel. A guide hopper is arranged below the feeding conveyor line, and the guide hopper corresponds to the punching device.
[0006] The feeding conveyor line includes: a frame, with a driving roller and a driven roller respectively installed at both ends of the frame, and a conveyor belt connecting the driving roller and the driven roller; a mounting frame is fixedly connected to the side of the frame and inside the conveyor belt, and a magnetic plate is fixedly connected to the bottom of the mounting frame; a baffle is fixedly connected to the side of the frame and below the conveyor belt, and the top of the baffle is corrugated; a T-shaped plate is connected to the side of the conveyor belt through a flexible connector, the main body of the T-shaped plate is located inside the conveyor belt, and the T-shaped plate has a portion that penetrates the conveyor belt and extends to the outside of the conveyor belt.
[0007] As a preferred embodiment, the worktable of the blanking equipment is provided with a blanking positioning groove, the bottom of the blanking positioning groove is provided with a waste hole, a blanking assembly capable of blanking in the up and down direction is provided above the blanking positioning groove, an L-shaped lifting frame is fixedly connected to the bottom of the blanking assembly, a box hole is provided at the bottom of the blanking positioning groove, the L-shaped lifting frame is located inside the box hole, a pushing cylinder is fixedly connected to the side of the worktable of the blanking equipment, and a pushing block is fixedly connected to the output end of the pushing cylinder.
[0008] As another preferred embodiment, the punching assembly includes: a first pressure plate and a second pressure plate, a spring assembly is provided between the first pressure plate and the second pressure plate, a stepped hole is provided at the bottom of the second pressure plate, a punching block is provided inside the stepped hole, a return spring is provided between the top of the punching block and the bottom of the first pressure plate, a top block is fixedly connected to the bottom of the first pressure plate and outside the return spring, a power component is provided at the top of the first pressure plate, and a mounting component is fixedly connected to the side of the second pressure plate and above the first pressure plate.
[0009] Further preferably, a positioning wheel is provided on the side of the driven roller, and a positioning part corresponding to the positioning wheel is provided on the inner side of the conveyor belt.
[0010] As a preferred embodiment, the device further includes a waste bin, wherein a waste outlet with a waste hole is provided below the worktable of the punching equipment, and the waste bin corresponds to the waste outlet.
[0011] As another preferred embodiment, a retaining frame is provided on the side of the punching equipment and above the second conveyor line.
[0012] Further preferably, it also includes: a slide structure, wherein the slide structure is located below the first conveyor line, and one end of the slide structure is located directly below the end of the first conveyor line, and the other end of the slide structure is provided with a baffle structure.
[0013] As a preferred embodiment, a tensioning shaft is movably connected to one side of the frame, and the tensioning shaft is located at the top center of the conveyor belt.
[0014] As another preferred embodiment, the guide hopper is fixedly connected to the frame, with the end of the guide hopper closer to the punching equipment being the small end and the end closer to the feeding conveyor line being the large end.
[0015] Compared with the prior art, the beneficial effects of this application are as follows:
[0016] (1) In this application, the conveying of the sheet metal is completed by the cooperation of a first conveyor line, a feeding conveyor line, and a guide hopper. Specifically, the sheet metal to be punched is placed on the first conveyor line for transportation. When it reaches directly below the feeding conveyor line, it is attracted upward by the magnetic plate and adheres to the lower surface of the conveyor belt. If a second sheet metal reaches below the feeding conveyor line at the same time, the magnetic attraction is blocked (or shielded) by the first sheet metal, and the second sheet metal will continue to be conveyed forward to the end of the first conveyor line. This can effectively solve the problem of sheet metal conveying sequence, and does not require the use of monitoring, control and other equipment, making it more reliable. The sheet metal attracted by the magnetic plate moves with the conveyor belt. When one end of it encounters the baffle, it will be blocked. At this time, the sheet metal and the conveyor belt slide relative to each other. When the next T-shaped sheet metal (the T-shaped sheet metal moves along the circumference of the conveyor belt) arrives, the sheet metal will continue to be conveyed forward to the end of the conveyor belt. When the sheet material is moved to the rear end of the conveyor belt (in a continuous, cyclical manner), it is pushed over the baffle and then into the guide hopper and punching positioning slot for punching. The L-shaped lifting frame, pusher cylinder, and pusher block work together to unload the product, which finally falls onto the second conveyor line for the next processing step. Specifically, after the sheet material falls onto the punching positioning slot, the punching equipment activates, controlling the punching components to move downwards to complete the punching process. Then, the punching components move upwards, causing the L-shaped lifting frame to move upwards, lifting the product upwards and over the punching positioning slot. At this point, the pusher cylinder activates, controlling the pusher block to push the product away from the punching equipment and onto the second conveyor line. The entire process is continuous, compact, and interference-free, enabling efficient and stable production. Compared to traditional punching production lines, it requires less monitoring and control equipment, thus reducing production costs.
[0017] (2) In this application, the T-shaped plate is connected by a flexible connector. When it is located in the upper part of the conveyor belt, it is completely retracted into the conveyor belt under the action of gravity. When it moves to the lower part, it is exposed under the action of gravity, which can push the plate to move. When the plate is directly below it, it is attracted by the magnetic plate. Under the action of the plate extrusion force, it will also be pressed into the interior of the conveyor belt, which will not interfere with the conveying of the plate. This structure design is conducive to the delayed conveying of the plate and ensures the normal punching of the plate. Attached Figure Description
[0018] Figure 1 This is a first-person perspective 3D view of the robot's automated punching production line.
[0019] Figure 2 This is a front view of the robot's automated punching production line;
[0020] Figure 3 This is a top view of the robot's automated punching production line;
[0021] Figure 4 This is a second-view perspective 3D view of the robot's automated punching production line.
[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0023] Figure 6 A three-dimensional schematic diagram of part of the material conveyor line;
[0024] Figure 7 for Figure 6 Enlarged view at point B in the middle;
[0025] Figure 8 for Figure 6 Enlarged view at point C;
[0026] Figure 9 This is a schematic diagram of the punching head structure.
[0027] In the diagram: 1. First conveyor line; 2. Second conveyor line; 3. Slide structure; 4. Material blocking structure; 5. Feeding conveyor line; 51. Frame; 52. Driving roller; 53. Driven roller; 531. Positioning wheel; 54. Conveyor belt; 541. Positioning part; 55. T-shaped plate; 56. Flexible connector; 57. Mounting frame; 58. Magnetic plate; 59. Material blocking frame; 6. Guide hopper; 7. Punching equipment; 8. Material blocking frame; 9. Scrap box; 10. L-shaped lifting frame; 11. Pushing cylinder; 12. Punching assembly; 121. Power component; 122. First pressure plate; 123. Second pressure plate; 124. Spring assembly; 125. Punching block; 126. Return spring; 127. Top block; 128. Mounting component; 13. Pushing block; 14. Punching positioning groove. Detailed Implementation
[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0029] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0031] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0032] like Figure 1-9 The robotic automatic punching production line shown includes a first conveyor line 1, a second conveyor line 2, and a punching device 7. A feeding conveyor line 5 is arranged above the first conveyor line 1. The conveying directions of the first conveyor line 1 and the feeding conveyor line 5 are parallel. The conveyor belt of the first conveyor line 1 moves in the opposite direction to the conveyor belt of the feeding conveyor line 5. The first conveyor line 1 relies on the upper part to transport the sheet metal, while the feeding conveyor line 5 relies on the lower part of the conveyor belt to transport the sheet metal. Therefore, although the directions of movement are opposite, the actual conveying directions are the same. A guide hopper 6 is arranged below the feeding conveyor line 5, and the guide hopper 6 corresponds to the punching device 7.
[0033] Using the above structure, the sheet material is conveyed through the first conveyor line 1 to the bottom of the feeding conveyor line 5, and then the feeding conveyor line 5 conveys it to the guide hopper 6. After the sheet material is aligned, it is conveyed to the punching equipment 7. After the punching equipment 7 completes the punching process, it sends the product to the second conveyor line 2 and conveys the product to the next process.
[0034] Reference Appendix Figures 6-8Specifically, the feeding conveyor line 5 includes: a frame 51, with a drive roller 52 and a driven roller 53 respectively installed at both ends of the frame 51. A conveyor belt 54 is connected between the drive roller 52 and the driven roller 53. One end of the drive roller 52 is connected to a motor, which drives the drive roller 52 to rotate, thereby driving the conveyor belt 54 to rotate. A mounting frame 57 is fixedly connected to the side of the frame 51 and inside the conveyor belt 54. A magnetic plate 58 is fixedly connected to the bottom of the mounting frame 57. A baffle 59 is fixedly connected to the side of the frame 51 and below the conveyor belt 54. The top of the baffle 59 is set as a corrugated surface. The top of the baffle 59 and the bottom of the conveyor belt 54 form a restriction opening, which prevents the material from passing through the restriction opening normally. A T-shaped plate 55 is connected to the side of the conveyor belt 54 through a flexible connector 56. The main body of the T-shaped plate 55 is located inside the conveyor belt 54, and the T-shaped plate 55 has a portion that penetrates through the conveyor belt 54 and extends to the outside of the conveyor belt 54.
[0035] When the T-shaped plate 55 is located in the upper part of the conveyor belt, it retracts completely into the conveyor belt 54 under the action of gravity. When it moves to the lower part, the exposed part under the action of gravity can push the plate to move, that is, squeeze the limiting opening, causing the stop 59 to deform and the plate to cross the limiting opening. When the plate is directly below it, it is attracted by the magnetic plate. Under the action of the plate's squeezing force, it will also be pressed into the interior of the conveyor belt 54 without interfering with the plate's conveying. This structural design is conducive to the delayed conveying of the plate and ensures the normal punching of the plate.
[0036] The cycle of the punching equipment 7 completing one punching and unloading operation is T1. The time for the T-shaped plate 55 to move from one end to the other is T2. T2≥T1, which means that it can fully meet the normal processing requirements. In the actual case of feeding, after the first feeding, the punching equipment 7 starts to work to perform punching and unloading. The second plate will not be immediately attracted to the bottom of the feeding conveyor line 5. Even if it is immediately attracted, the T-shaped plate 55 on the rear side will not immediately slide out from the rear end. There will be a certain distance of relative sliding between the plate and the conveyor belt 54.
[0037] The worktable of the punching equipment 7 is provided with a punching positioning groove 14. The bottom of the punching positioning groove 14 is provided with a waste hole. Above the punching positioning groove 14 is a punching assembly 12 that can punch in the up and down direction. The bottom of the punching assembly 12 is fixedly connected with an L-shaped lifting frame 10. The bottom of the punching positioning groove 14 is provided with a box hole. The L-shaped lifting frame 10 is located inside the box hole. The side of the worktable of the punching equipment 7 is fixedly connected with a pusher cylinder 11. The output end of the pusher cylinder 11 is fixedly connected with a pusher block 13.
[0038] Reference Appendix Figure 9The punching assembly 12 includes: a first pressure plate 122 and a second pressure plate 123. A spring assembly 124 is provided between the first pressure plate 122 and the second pressure plate 123. The first pressure plate 122 and the second pressure plate 123 move relative to each other to compress the spring assembly 124. A stepped hole is provided at the bottom of the second pressure plate 123. A punching block 125 is provided inside the stepped hole. The punching block 125 is a component used for punching. A return spring 126 is provided between the top of the punching block 125 and the bottom of the first pressure plate 122. A top block 127 is fixedly connected to the bottom of the first pressure plate 122 and outside the return spring 126. A power component 121 is provided at the top of the first pressure plate 122. A mounting component 128 is fixedly connected to the side of the second pressure plate 123 and above the first pressure plate 122.
[0039] The top of the punching equipment 7 is equipped with a hydraulic mechanism. The power component 121 is the extension end of the hydraulic mechanism. During the punching process, the power component 121 directly pushes the first pressure plate 122 and indirectly pushes the second pressure plate 123 to move downward. The punching block 125 first contacts the plate. During the downward movement, the return spring 126 is compressed, and the punching block 125 and the second pressure plate 123 move relative to each other. When the top of the punching block 125 contacts the top block 127, the bottom of the second pressure plate 123 can press the plate tightly. When pressing down, the first pressure plate 122 uses the spring assembly 124 to apply a clamping force to the second pressure plate 123. The top block 127 presses down on the punching block 125 to punch the plate.
[0040] Reference Appendix Figure 6 , Figure 8 The driven roller 53 is provided with a positioning wheel 531 on its side (both the driving roller 52 and the driven roller 53 are provided with positioning wheels 531), and the inner side of the conveyor belt 54 is provided with a positioning part 541 corresponding to the positioning wheel 531.
[0041] The middle part of the conveyor belt 54 is thinner, while the front and rear ends, i.e., the positioning part 541, are thicker. This way, during transmission, the T-shaped plate 55 will not interfere with the driving roller 52 and the driven roller 53. The inner side of the positioning part 541 is provided with a protrusion, and the positioning wheel 531 is provided with an annular opening, which can restrict the conveyor belt 54 from sliding along the axial direction of the driving roller 52 and the driven roller 53.
[0042] It also includes: a scrap box 9, a scrap outlet with a scrap hole connected to the workbench of the punching equipment 7, a scrap box 9 corresponding to the scrap outlet, a walking wheel at the bottom of the scrap box 9 and a handle on the side for holding the scrap generated during the punching process, and transferring the scrap away when the scrap box 9 is full.
[0043] A retaining frame 8 is provided on the side of the punching equipment 7 and above the second conveyor line 2 to restrict the product so that the product can fall precisely onto the second conveyor line 2 and prevent the product from slipping.
[0044] It also includes: a slide structure 3, which is located below the first conveyor line 1, with one end of the slide structure 3 located directly below the end of the first conveyor line 1, and a baffle structure 4 provided at the other end of the slide structure 3.
[0045] Some of the boards conveyed by the first conveyor line 1 cannot be fully immersed in the feeding conveyor line 5 due to the short conveying interval. Some boards will fall from the end of the first conveyor line to the sliding structure 3 and then slide to the stop 4. The inspection personnel can put these boards back into the first conveyor line for secondary feeding according to the actual situation.
[0046] A tensioning shaft is movably connected to one side of the frame 51. The tensioning shaft is located at the top center of the conveyor belt 54 and is used to tension the conveyor belt. Compared with traditional conveyor lines, the working surface of the feeding conveyor line is located below, so the tensioning wheel is set above and will not interfere with the product.
[0047] The guide hopper 6 is fixedly connected to the frame 51. The end of the guide hopper 6 closer to the punching equipment 7 is the small end, and the end closer to the feeding conveyor line 5 is the large end. The large end is easy for products to enter, and the small end can be accurately put into the punching positioning slot 14.
[0048] Working principle: The sheet metal to be punched is transported on the first conveyor line 1. When it reaches directly below the feeding conveyor line 5, it is attracted upwards by the magnetic plate and adheres to the lower surface of the conveyor belt. If a second sheet metal reaches below the feeding conveyor line at the same time, it will be blocked (or shielded) by the magnetic attraction of the first sheet metal. The second sheet metal will continue to be transported forward along the first conveyor line to the end, and finally slide down through the slide structure 3 and be temporarily stored at the stop structure 4. The sheet metal attracted by the magnetic plate moves with the conveyor belt. When one end of it encounters the stop frame, it will be blocked. At this time, the sheet metal and the stop frame are... Relative sliding occurs between the conveyor belts. When the next T-shaped plate (the T-shaped plates are distributed along the circumference of the conveyor belt, repeating in a continuous cycle) moves to the rear end of the plate, it pushes the plate over the stop frame and into the guide hopper and punching positioning slot for punching. After the plate falls onto the punching positioning slot, the punching equipment activates, controlling the punching component to move downward to complete the punching process. Then, the punching component moves upward, driving the L-shaped lifting frame to move upward, lifting the product upward and over the punching positioning slot. At this time, the pusher cylinder activates, controlling the pusher block to push the product away from the punching equipment and onto the second conveyor line.
[0049] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A robotic automated punching production line, comprising a first conveyor line, a second conveyor line, and punching equipment, characterized in that: A feeding conveyor is provided above the first conveyor line, and the conveying directions of the first conveyor line and the feeding conveyor line are parallel. A guide hopper is provided below the feeding conveyor line, and the guide hopper corresponds to the punching equipment. The feeding conveyor line includes: a frame, with a driving roller and a driven roller respectively installed at both ends of the frame, a conveyor belt connecting the driving roller and the driven roller, a mounting frame fixedly connected to the side of the frame and inside the conveyor belt, a magnetic plate fixedly connected to the bottom of the mounting frame, a baffle fixedly connected to the side of the frame and below the conveyor belt, the top of the baffle being a corrugated surface, and a T-shaped plate connected to the side of the conveyor belt via a flexible connector, the main body of the T-shaped plate being located inside the conveyor belt, and the T-shaped plate having a portion penetrating the conveyor belt and extending to the outside of the conveyor belt; The top of the baffle and the bottom of the conveyor belt form a limiting opening; when the T-shaped plate is located in the upper half of the conveyor belt, it retracts completely into the conveyor belt under the action of gravity; when the T-shaped plate moves to the lower half of the conveyor belt, its exposed portion is used to push the plate to squeeze the limiting opening, causing the baffle to deform and thus allowing the plate to cross the limiting opening; when the plate is located directly below the T-shaped plate and is attracted up by the magnetic plate, the T-shaped plate is pressed into the interior of the conveyor belt under the action of the plate's squeezing force.
2. The robotic automated punching production line as described in claim 1, characterized in that: The worktable of the punching equipment is provided with a punching positioning groove, and a waste hole is provided at the bottom of the punching positioning groove. A punching assembly capable of punching in the up and down direction is provided above the punching positioning groove. An L-shaped lifting frame is fixedly connected to the bottom of the punching assembly. A box hole is provided at the bottom of the punching positioning groove, and the L-shaped lifting frame is located inside the box hole. A pushing cylinder is fixedly connected to the side of the worktable of the punching equipment, and a pushing block is fixedly connected to the output end of the pushing cylinder.
3. The robotic automated punching production line as described in claim 2, characterized in that: The punching assembly includes: a first pressure plate and a second pressure plate. A spring assembly is provided between the first pressure plate and the second pressure plate. A stepped hole is provided at the bottom of the second pressure plate. A punching block is provided inside the stepped hole. A return spring is provided between the top of the punching block and the bottom of the first pressure plate. A top block is fixedly connected to the bottom of the first pressure plate and outside the return spring. A power component is provided at the top of the first pressure plate. An mounting component is fixedly connected to the side of the second pressure plate and above the first pressure plate.
4. The robotic automated punching production line as described in claim 3, characterized in that: The driven roller is provided with a positioning wheel on its side, and the inner side of the conveyor belt is provided with a positioning part corresponding to the positioning wheel.
5. The robotic automated punching production line as described in claim 1, characterized in that, Also includes: The waste bin has a waste outlet connected to a waste hole below the workbench of the punching equipment, and the waste bin corresponds to the waste outlet.
6. The robotic automated punching production line as described in claim 1, characterized in that: A retaining frame is provided on the side of the punching equipment and above the second conveyor line.
7. The robotic automated punching production line as described in claim 1, characterized in that, Also includes: A slide structure is provided, which is located below the first conveyor line, with one end of the slide structure located directly below the end of the first conveyor line, and the other end of the slide structure is provided with a material blocking structure.
8. The robotic automated punching production line as described in claim 1, characterized in that: A tensioning shaft is movably connected to one side of the frame, and the tensioning shaft is located at the top center of the conveyor belt.
9. The robotic automated punching production line as described in claim 1, characterized in that: The guide hopper is fixedly connected to the frame. The end of the guide hopper closer to the punching equipment is the small end, and the end closer to the feeding conveyor line is the large end.