Multi-station plate punching and feeding production line

Abstract

The invention discloses a multi-station plate punching and feeding production line, which belongs to the technical field of hydraulic equipment, and comprises a punching hydraulic unit consisting of N hydraulic machines and used for punching a metal plate; a hydraulic platform of each hydraulic machine is fixedly provided with a directional conveying frame in a matched mode, a pulley guide frame is fixedly arranged on the low-horizontal-height side of the directional conveying frame in a matched mode, a feeding conveying frame is fixedly arranged on the left side of the pulley guide frame in a matched mode, and a connecting conveying frame is fixedly arranged on the right side of the pulley guide frame in a matched mode. When N is set to be 2, a discharging conveying frame is fixed to the right side of the second pulley guide frame in a matched mode, and when N is set to be larger than 2, a connecting conveying frame is fixed to the right side of the second pulley guide frame in a matched mode. By parity of reasoning, an N-1 connecting conveying frame is cooperatively fixed to the left side of the N pulley guide frame, and a discharging conveying frame is cooperatively fixed to the right side of the N pulley guide frame; wherein N is a positive integer greater than or equal to 2. According to the plate punching feeding and discharging device, the efficient, accurate and high-automation-degree plate punching feeding and discharging process can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic equipment, and particularly relates to a multi-station plate punching and loading production line. Background Art

[0002] In the current field of construction machinery, hydraulic forming equipment, as a key mechanical equipment for processing various products such as metals, plastics, rubbers, woods, powders, etc., plays a crucial role in industries such as new energy, aerospace, and automobiles. However, in terms of punching hydraulic presses, their current feeding methods have greatly restricted the development pace of the industry.

[0003] Currently, punching hydraulic presses still rely on manual feeding in most cases. There is an insurmountable gap between this mode and modern automated production lines, which hinders enterprises' journey towards higher automation levels and production efficiency. When it comes to some processes with strict requirements for processing accuracy, such as punching of formed plates, precision stamping, extrusion, forming, etc., the drawbacks of manual feeding become even more prominent. It is very difficult for operators to accurately place hydraulic parts at the preset positions on the working table of the hydraulic press. A slight deviation may trigger a chain reaction, resulting in a significant reduction in the processing accuracy of hydraulic parts, a sharp increase in the scrap rate, not only causing waste of raw materials but also directly affecting product quality and the production efficiency of enterprises. Summary of the Invention

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A multi-station plate punching and loading production line, comprising: a punching hydraulic press group composed of N hydraulic presses for stamping metal plates, and the punching hydraulic press group is provided with a unified control system; a first hydraulic platform of the first hydraulic press is fixedly equipped with a first directional conveying frame, a first pulley guiding frame is fixedly equipped on the side with a lower horizontal height of the first directional conveying frame, a feeding conveying frame is fixedly equipped on the left side of the first pulley guiding frame, and a first connecting conveying frame is fixedly equipped on the right side of the first pulley guiding frame; a second hydraulic platform of the second hydraulic press is fixedly equipped with a second directional conveying frame, a second pulley guiding frame is fixedly equipped on the side with a lower horizontal height of the second directional conveying frame, a first connecting conveying frame is fixedly equipped on the left side of the second pulley guiding frame, and a second connecting conveying frame or a blanking conveying frame is fixedly equipped on the right side of the second pulley guiding frame; when N is set to 2, a blanking conveying frame is fixedly equipped on the right side of the second pulley guiding frame, and when N is set to a number greater than 2, a second connecting conveying frame is fixedly equipped on the right side of the second pulley guiding frame; and so on, an Nth hydraulic platform of the Nth hydraulic press is fixedly equipped with an Nth directional conveying frame, an Nth pulley guiding frame is fixedly equipped on the side with a lower horizontal height of the Nth directional conveying frame, an (N - 1)th connecting conveying frame is fixedly equipped on the left side of the Nth pulley guiding frame, and a blanking conveying frame is fixedly equipped on the right side; wherein, N is a positive integer greater than or equal to 2.

[0006] The present invention has the following beneficial effects:

[0007] The present invention can efficiently and conveniently transport forgings from a lower position to a higher position. The stamping forgings are firmly fixed by the ends of two guide rod cylinders and accurately pushed to the workbench of the punching hydraulic press, ensuring the accuracy and stability of the feeding process. During transportation, the friction provided by the pulleys can prevent the hydraulic parts from falling, ensuring the safety of material transportation. When in the high position, the guide frame and two rows of guide pulleys cooperate to limit the entry position of the hydraulic parts. The device of the present invention can effectively reduce the potential risks to personnel caused by the hydraulic press during operation. The feeding system saves time and effort, has a high degree of automation, and excellent efficiency. It can reduce manual operations and the probability of safety accidents, making the production process smoother and helping enterprises improve production efficiency and automation level. Description of the Drawings

[0008] Figure 1 It is a three-dimensional structural schematic diagram of the multi-station plate punching and feeding production line of the present invention. Among them, 1 - No. 1 hydraulic press, 2 - No. 2 hydraulic press, 3 - No. 3 hydraulic press, 4 - No. 1 directional conveying frame, 5 - No. 2 directional conveying frame, 6 - No. 3 directional conveying frame, 7 - feeding conveying frame, 8 - No. 1 pulley guide frame, 9 - No. 1 connecting conveying frame, 10 - No. 2 pulley guide frame, 11 - No. 2 connecting conveying frame, 12 - No. 3 pulley guide frame, 13 - discharging conveying frame, 14 - No. 1 hydraulic platform, 15 - No. 2 hydraulic platform, 16 - No. 3 hydraulic platform;

[0009] Figure 2 It is a top view of the three-dimensional structure of the multi-station plate punching and feeding production line of the present invention. Among them, 1 - No. 1 hydraulic press, 2 - No. 2 hydraulic press, 3 - No. 3 hydraulic press, 4 - No. 1 directional conveying frame, 5 - No. 2 directional conveying frame, 6 - No. 3 directional conveying frame, 7 - feeding conveying frame, 8 - No. 1 pulley guide frame, 9 - No. 1 connecting conveying frame, 10 - No. 2 pulley guide frame, 11 - No. 2 connecting conveying frame, 12 - No. 3 pulley guide frame, 13 - discharging conveying frame;

[0010] Figure 3 It is a front view of the three-dimensional structure of the multi-station plate punching and feeding production line of the present invention. Among them, 1 - No. 1 hydraulic press, 2 - No. 2 hydraulic press, 3 - No. 3 hydraulic press, 4 - No. 1 directional conveying frame, 5 - No. 2 directional conveying frame, 6 - No. 3 directional conveying frame, 7 - feeding conveying frame, 8 - No. 1 pulley guide frame, 9 - No. 1 connecting conveying frame, 10 - No. 2 pulley guide frame, 11 - No. 2 connecting conveying frame, 12 - No. 3 pulley guide frame, 13 - discharging conveying frame;

[0011] Figure 4Schematic three-dimensional structure diagram of the directional conveying rack of the present invention, wherein, 17 - bottom plate of the directional conveying rack, 18 - support column, 19 - left feeding rack, 20 - right feeding rack, 21 - bottom plate for mounting the first motor, 22 - first servo motor, 23 - bottom plate for mounting the second motor, 24 - second servo motor, 25 - left guiding rack, 26 - right guiding rack, 27 - first rodless cylinder with belt, 28 - second rodless cylinder with belt, 29 - mounting hole, 30 - synchronous belt, 31 - feeding pulley, 32 - synchronous pulley, 33 - guiding pulley, 34 - feeding platform, 35 - connecting platform, 36 - receiving platform, 37 - feeding platform;

[0012] Figure 5 Schematic three-dimensional structure diagram of the pulley guiding rack of the present invention, wherein, 38 - bottom plate of the pulley guiding rack, 39 - mounting hole, 40 - support column, 41 - pulley mounting platform, 42 - longitudinal guiding rodless cylinder with belt, 43 - transverse guiding rodless cylinder with belt, 44 - longitudinal guiding rod, 45 - first guiding rod, 46 - second guiding rod, 47 - universal pulley set, 48 - longitudinal guiding groove, 49 - transverse guiding groove;

[0013] Figure 6 Schematic three-dimensional structure diagram of the feeding conveying rack of the present invention, wherein, 50 - bottom plate of the feeding conveying rack, 51 - mounting hole, 52 - support column, 53 - right feeding rack, 54 - middle feeding rack, 55 - left feeding rack, 56 - first synchronous motor, 57 - second synchronous motor, 58 - second feeding synchronous belt, 59 - first feeding synchronous belt, 60 - anti-side-slip guardrail;

[0014] Figure 7 Schematic three-dimensional structure diagram of the connecting conveying rack of the present invention, wherein, 61 - bottom plate of the connecting conveying rack, 62 - support column, 63 - mounting hole, 64 - right conveying rack, 65 - middle conveying rack, 66 - left conveying rack, 67 - first synchronous motor, 68 - second synchronous motor, 69 - first conveying synchronous belt, 70 - second conveying synchronous belt;

[0015] Figure 8 Schematic three-dimensional structure diagram of the discharging conveying rack of the present invention, wherein, 71 - bottom plate of the discharging conveying rack, 72 - support column, 73 - left discharging rack, 74 - middle discharging rack, 75 - right discharging rack, 76 - discharging synchronous motor, 77 - second discharging synchronous belt, 78 - first discharging synchronous belt, 79 - discharging conveying platform, 80 - discharging placement platform. Detailed implementation manners

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to 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 used to limit the present invention.

[0017] In the following detailed description, for the sake of explanation, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present invention; however, obviously, one or more embodiments can also be implemented without these specific details; in addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0019] Embodiment 1:

[0020] As Figure 1 、 Figure 2 、 Figure 3 shown, the multi-station plate punching and loading production line of the present invention includes a punching hydraulic unit, and the punching hydraulic unit includes a first hydraulic press 1, a second hydraulic press 2, and a third hydraulic press 3 (in the embodiment of the present invention, the number of hydraulic presses is set to 3 to just meet the production needs. If there are other special production needs, the number of hydraulic presses can be other numbers) for stamping metal plates. The punching hydraulic unit can be provided with a unified control system and working mode; a first directional conveying frame 4 is fixedly matched with the first hydraulic platform 14 of the first hydraulic press 1. A first pulley guiding frame 8 is fixedly matched with the side with a lower horizontal height of the first directional conveying frame 4. A feeding conveying frame 7 is fixedly matched with the left side of the first pulley guiding frame 8. A first connecting conveying frame 9 is fixedly matched with the right side of the first pulley guiding frame 8; a second directional conveying frame 5 is fixedly matched with the second hydraulic platform 15 of the second hydraulic press 2. A second pulley guiding frame 10 is fixedly matched with the side with a lower horizontal height of the second directional conveying frame 5. The first connecting conveying frame 9 is fixedly matched with the left side of the second pulley guiding frame 10. A second connecting conveying frame 11 is fixedly matched with the right side of the second pulley guiding frame 10; a third directional conveying frame 6 is fixedly matched with the third hydraulic platform 16 of the third hydraulic press 3. A third pulley guiding frame 12 is fixedly matched with the side with a lower horizontal height of the third directional conveying frame 6. The second connecting conveying frame 11 is fixedly matched with the left side of the third pulley guiding frame 12. A blanking conveying frame 13 is fixedly matched with the right side of the third pulley guiding frame 12. The feeding conveying frame 7, each pulley guiding frame, each connecting conveying frame, each pulley guiding frame, and the left end of the blanking conveying frame 13 have the same horizontal height.

[0021] As Figure 4As shown in the figure, the first directional conveyor rack 4, the second directional conveyor rack 5, and the third directional conveyor rack 6 respectively include: a directional conveyor rack bottom plate 17. Mounting holes 29 are provided at the four corners of the directional conveyor rack bottom plate 17. Four support columns 18 are fixedly connected to the directional conveyor rack bottom plate 17. At the upper ends of the two support columns 18 on the left side (it can also be set on the right side or other parts), a first motor mounting bottom plate 21 and a second motor mounting bottom plate 23 are respectively fixedly connected. A first servo motor 22 is arranged on the first motor mounting bottom plate 21, and a second servo motor 24 is arranged on the second motor mounting bottom plate 23. A left feeding rack 19 and a right feeding rack 20 are respectively fixedly connected to the two support columns 18 on the left and right sides. A synchronous belt 30 is installed between the left feeding rack 19 and the right feeding rack 20. A feeding platform 34, a connecting platform 35, and a receiving platform 36 are arranged in sequence from near the hydraulic platform to far from the hydraulic platform between them. The synchronous belt covers the feeding platform 34, the connecting platform 35, and the receiving platform 36. A first belt guide rod cylinder 27 is arranged on the lower side of the end of the left feeding rack 19 near the hydraulic platform, and a second belt guide rod cylinder 28 is arranged on the lower side of the end of the right feeding rack 20 near the hydraulic platform. The first belt guide rod cylinder 27 and the second belt guide rod cylinder 28 are fixedly connected to the two support columns 18 near the hydraulic platform. A left guide rack 25 is fixedly connected to the upper side of the end of the left feeding rack 19 in the feeding direction, and a right guide rack 26 is fixedly connected to the upper side of the end of the right feeding rack 20 in the feeding direction.

[0022] Figure 4 Among them, the left feeding rack 19, the right feeding rack 20, and the synchronous belt 30 form a feeding platform 37. The feeding platform 37 is divided into three sections. Among them, the side with a lower horizontal height is the receiving platform 36, and the side with a higher horizontal height is the feeding platform 34. A connecting platform 35 is installed between the receiving platform 36 and the feeding platform 34. The connecting surface of the connecting platform 35 is an inclined surface. The first hydraulic platform 14 of the first hydraulic press 1 is cooperatively connected with the feeding platform 34 of the first directional conveyor rack 4, and their horizontal heights are the same; the installation connection methods of the second hydraulic press 2 and the second directional conveyor rack 5, and the third hydraulic press 3 and the third directional conveyor rack 6 are the same as the installation connection method of the first hydraulic press 1 and the first directional conveyor rack 4.

[0023] As Figure 5As shown in the figure, the first pulley guide frame 8, the second pulley guide frame 10, and the third pulley guide frame 12 respectively include: a pulley guide frame bottom plate 38, on which a number of support columns 40 are fixedly connected. At the top of the support columns 40, a pulley installation platform 41 is fixedly connected. On the pulley installation platform 41, a universal pulley set 47 is fixedly connected. On the lower side surface of the pulley installation platform 41, a transverse guide belt guide rod cylinder 43 and a longitudinal guide belt guide rod cylinder 42 are fixedly connected. The pulley installation platform 41 is provided with 2 transverse guide grooves 49 and 1 longitudinal guide groove 48 that penetrate the upper and lower side surfaces of the platform. The transverse guide grooves 49 guide the guide rods to move horizontally, and the longitudinal guide groove 48 guides the guide rods to move longitudinally. The transverse guide belt guide rod cylinder 43 includes a first guide rod 45 and a second guide rod 46, which pass through the transverse guide grooves 49. The first guide rod 45 and the second guide rod 46 provide the force for the hydraulic component to slide away from the first pulley guide frame 8. The longitudinal guide belt guide rod cylinder 42 includes a longitudinal guide rod 44, which passes through the longitudinal guide groove 48. The longitudinal guide rod 44 provides the force for the hydraulic component to enter the first directional conveying frame 4. The pulley installation platform 41 of the first pulley guide frame 8 is cooperatively connected with the receiving platform 36 of the first directional conveying frame 4, and their horizontal heights are the same. The installation connection methods of the second pulley guide frame 10 with the second directional conveying frame 5 and the third pulley guide frame 12 with the third directional conveying frame 6 are the same as the connection method of the first pulley guide frame 8 with the first directional conveying frame 4.

[0024] As Figure 6 shown in the figure, the loading conveying frame 7 includes: a loading conveying frame bottom plate 50, on which a number of support columns 52 are fixedly connected. At the top of the support columns 52, a left loading frame 55, a middle loading frame 54, and a right loading frame 53 are fixedly connected. Protective fences 60 are fixedly installed at the left side of the left loading frame 55 and the upper right side of the right loading frame 53. A second loading synchronous belt 58 is installed between the left loading frame 55 and the middle loading frame 54, and a first loading synchronous belt 59 is installed between the middle loading frame 54 and the right loading frame 53. A first synchronous motor 56 and a second synchronous motor 57 are cooperatively connected to the left side of the left loading frame 55 (it can also be set on the left side or other parts). The loading conveying frame bottom plate 50 of the loading conveying frame 7 is cooperatively connected with the pulley guide frame bottom plate 38 of the pulley guide frame 8, and the loading conveying frame 7 and the pulley guide frame 8 have the same horizontal height.

[0025] As Figure 7As shown in the figure, the first connecting and conveying frame 9 and the second connecting and conveying frame 11 include: a connecting and conveying frame bottom plate 61, on which several support columns 62 are fixedly connected. At the top of the support columns 62, a left conveying frame 66, a middle conveying frame 65 and a right conveying frame 64 are fixedly connected. A first conveying synchronous belt 69 is installed between the left conveying frame 66 and the middle conveying frame 65, and a second conveying synchronous belt 70 is installed between the middle conveying frame 65 and the right conveying frame 64. A first synchronous motor 67 and a second synchronous motor 68 are connected in cooperation with the left side of the left conveying frame 66 (it can also be set on the left side or other parts). The left side of the connecting and conveying frame bottom plate 61 of the first connecting and conveying frame 9 is connected in cooperation with the feeding conveying frame bottom plate 50 of the feeding conveying frame 7. The two sides of the connecting and conveying frame bottom plate 61 of the first connecting and conveying frame 9 are respectively connected in cooperation with the pulley guiding frame bottom plate 38 of the first pulley guiding frame 8 and the pulley guiding frame bottom plate 38 of the second pulley guiding frame 10. The first connecting and conveying frame 9, the first pulley guiding frame 8 and the second pulley guiding frame 10 have the same horizontal height. Similarly, the two sides of the connecting and conveying frame bottom plate of the second connecting and conveying frame 11 are respectively connected in cooperation with the pulley guiding frame bottom plate 38 of the second pulley guiding frame 10 and the pulley guiding frame bottom plate of the third pulley guiding frame 12. The second pulley guiding frame 10, the second connecting and conveying frame 11 and the third pulley guiding frame 12 have the same horizontal height.

[0026] As Figure 8 shown in the figure, the discharging conveying frame 13 includes: a discharging conveying frame bottom plate 71, on which several support columns 72 are fixedly connected. At the top of the support columns 72, a left discharging frame 73, a middle discharging frame 74 and a right discharging frame 75 are fixedly connected. A first discharging synchronous belt 78 is installed between the left discharging frame 73 and the middle discharging frame 74, and a second discharging synchronous belt 77 is installed between the middle discharging frame 74 and the right discharging frame 75. A discharging synchronous motor 76 is connected in cooperation with the right side of the right discharging frame 75 (it can also be set on the left side of the left discharging frame or other parts). The upper parts of the left discharging frame 73, the middle discharging frame 74, the right discharging frame 75, as well as the first discharging synchronous belt 78 and the second discharging synchronous belt 77 form a discharging conveying platform 79, which slopes downward. The horizontal parts between the lower parts of the left discharging frame 73, the middle discharging frame 74 and the right discharging frame 75 form a discharging placing platform 80. The discharging conveying frame bottom plate 71 of the discharging conveying frame 13 is connected in cooperation with the pulley guiding frame bottom plate 38 of the third pulley guiding frame 12. The third pulley guiding frame 12 and the left end of the discharging conveying frame 13 have the same horizontal height.

[0027] When the punching hydraulic unit is ready to receive the processing of hydraulic components, the multi-station plate punching loading production line starts. First, the hydraulic components are placed on the loading conveyor rack 7, and the first synchronous motor 56 and the second synchronous motor 57 on the loading conveyor rack 7 start to work, providing the power for the synchronous belt during loading and driving the first loading synchronous belt 59 and the second loading synchronous belt 58 to work. The hydraulic components are conveyed to the universal pulley group 47 of the first pulley guiding rack 8 through the two synchronous belts. The universal pulley group 47 can provide rotation and support for the hydraulic components in multiple directions. The lateral guiding belt guide rod cylinder 43 and the longitudinal guiding belt guide rod cylinder 42 fixedly connected to the lower side of the pulley installation platform 41 are used to provide the power for driving the hydraulic components on the first pulley guiding rack 8. The first guiding rod 45 and the second guiding rod 46 of the lateral guiding belt guide rod cylinder 43 pass through the lateral guiding groove 49, and the longitudinal guiding rod 44 of the longitudinal guiding belt guide rod cylinder 42 passes through the longitudinal guiding groove 48. The longitudinal guiding groove 48 guides the longitudinal guiding rod 44 to move longitudinally. Through the longitudinal guiding rod 44, the hydraulic components move towards the first directional conveying rack 4 through the first pulley guiding rack 8. When the hydraulic components enter the first directional conveying rack 4, they move towards the first hydraulic press 1 through the synchronous belt 30 of the first directional conveying rack 4. The synchronous belt 30 is internally equipped with synchronous pulleys 32. The synchronous pulleys 32 are engaged with the synchronous belt 30, and the synchronous pulleys 32 are cooperatively connected with the first servo motor 22 and the second servo motor 24. The working states of the first servo motor 22 and the second servo motor 24 can be adjusted through the control system to set the rotation speed of the synchronous pulleys 32 to achieve the motion control of the synchronous belt 30. Among them, the moving speed of the synchronous belt 30 can be adjusted according to the weight and size of the loaded hydraulic components. The left loading rack 19 and the right loading rack 20 are internally equipped with loading pulleys 31, and the loading pulleys 31 are used to lift the hydraulic components, enabling the hydraulic components to move smoothly during loading and avoiding tilting or damage of the hydraulic components during transportation. The left guiding rack 25 and the right guiding rack 26 are internally equipped with two rows of guiding pulleys 33. The design of the guiding pulleys 33 enables the hydraulic components to enter the hydraulic press at a set same position. The guiding pulleys 33 are used to guide the movement of the hydraulic components on the synchronous belt to ensure the accuracy of the hydraulic press during operation. The cylinder mounting shafts of the first belt guide rod cylinder 27 and the second belt guide rod cylinder 28 are respectively cooperatively connected with two support columns 18 close to the first hydraulic platform 14. The first belt guide rod cylinder 27 and the second belt guide rod cylinder 28 are used to control the limit fixation of the hydraulic components.

[0028] The first directional conveyor rack 4 cooperates with the automatic loading system to achieve the rapid transfer of hydraulic components. Specifically: when the control system of the first directional conveyor rack 4 starts, it controls the operation of the first servo motor 22, the second servo motor 24, the first guide rod cylinder 27 and the second guide rod cylinder 28 to achieve precise loading. The synchronous pulley 32 rotates to drive the synchronous belt 30 to move. After the hydraulic component reaches the designated position, the first guide rod cylinder 27 and the second guide rod cylinder 28 fix the hydraulic component on the first hydraulic press 1. The first hydraulic press 1 starts the punching operation. When the punching of the hydraulic component on the first hydraulic press 1 is completed, the first guide rod cylinder 27 and the second guide rod cylinder 28 take out the hydraulic component from the first hydraulic press 1 through the piston rod. The first directional conveyor rack 4 conveys the hydraulic component to the first pulley guiding rack 8, and the hydraulic component is conveyed to the first connecting conveyor rack 9 by the horizontal guiding rod cylinder 43 in the first pulley guiding rack 8. The first conveying synchronous belt 69 and the second conveying synchronous belt 70 of the first connecting conveyor rack 9 convey the hydraulic component to the second pulley guiding rack 10. The hydraulic component is conveyed to the second directional conveyor rack 5 through the second pulley guiding rack 10. The second directional conveyor rack 5 conveys the hydraulic component to the second hydraulic press 2 to start the second punching operation. After the punching of the hydraulic component on the second hydraulic press 2 is completed, it is taken out of the second hydraulic press 2 and conveyed to the second pulley guiding rack 10, and then conveyed to the second connecting conveyor rack 11 by the horizontal guiding rod cylinder in the second pulley guiding rack 10. The second connecting conveyor rack 11 conveys the hydraulic component to the third pulley guiding rack 12, and the hydraulic component moves from the third pulley guiding rack 12 to the third directional conveyor rack 6. After the hydraulic component enters the third directional conveyor rack 6, it is driven to move towards the third hydraulic press 3. After reaching the designated position, it is fixed on the third hydraulic press 3, and the third hydraulic press 3 starts the punching operation. After the punching of the hydraulic component is completed, it is taken out of the third hydraulic press 3, conveyed to the third pulley guiding rack 12, and conveyed to the blanking conveyor rack 13 by the third pulley guiding rack 12, and then conveyed to the blanking placement platform 80 by the blanking conveying platform 79, and taken out by the next machine from the multi-station plate punching loading production line.

[0029] Embodiment 2:

[0030] Different from Embodiment 1, the three hydraulic presses in Embodiment 2 each have an independent control system and working mode, and can independently handle different working scenarios; during actual operation, the three hydraulic presses cooperate with each other through an automation system and a data interaction mechanism, and adjust the working parameters and operation rhythm in real time according to the working requirements to achieve complementary advantages. For example, when only Hydraulic Press 1 works, the hydraulic components are placed on the loading conveyor rack 7, and the hydraulic components are conveyed to the first pulley guiding rack 8 through two synchronous belts. The hydraulic components move from the first pulley guiding rack 8 to the first directional conveyor rack 4; when the hydraulic components enter the first directional conveyor rack 4, the control system of the first directional conveyor rack 4 is activated to control the operation of the first servo motor 22, the second servo motor 24, the first rod-guided cylinder 27 and the second rod-guided cylinder 28 to achieve precise loading. After the hydraulic components reach the designated position, the first rod-guided cylinder 27 and the second rod-guided cylinder 28 fix the hydraulic components on Hydraulic Press 1, and Hydraulic Press 1 starts the punching operation. When the punching of the hydraulic components on Hydraulic Press 1 is completed, the first directional conveyor rack 4 conveys the hydraulic components to the first pulley guiding rack 8, and the hydraulic components are conveyed by the first pulley guiding rack 8 to the first connecting conveyor rack 9, and the punching work is completed; the hydraulic components pass through the first connecting conveyor rack 9, the second pulley guiding rack 10, the second connecting conveyor rack 11 and the third pulley guiding rack 12 and are conveyed to the unloading conveyor rack 13, and are taken out by the next machine from the multi-station plate punching loading production line.

[0031] The multi-station plate punching loading production line includes a loading conveyor rack 7, a first directional conveyor rack 4, a first pulley guiding rack 8, a first connecting conveyor rack 9, a second directional conveyor rack 5, a second pulley guiding rack 10, a second connecting conveyor rack 11, a third directional conveyor rack 6, a third pulley guiding rack 12 and an unloading conveyor rack 13. The above-mentioned mechanical components of the loading device each have an independent structure and drive system. During the entire loading process, they cooperate with each other through sensors and a control system. When dealing with the loading of specific materials, they can operate independently by virtue of their own functions, showing autonomy. According to different material characteristics, loading process requirements and actual production needs, several components can be selected for combination, and the selected components will cooperate with each other by virtue of their own characteristics.

[0032] The multi-station plate punching loading production line of the above embodiments has richer functions, realizes a higher level of automation and intelligence, and provides a more excellent solution for customers. The present invention can improve the loading efficiency and accuracy of the punching hydraulic unit, reduce the labor intensity of operators, realize the high-efficiency and high-precision punching work of hydraulic components offline, and solve the problems of low loading efficiency and poor accuracy of the punching hydraulic unit.

[0033] The above are only embodiments of the present invention, and thus do not limit the scope of the present invention. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related system fields, are similarly included in the protection scope of the present invention.

[0034] The content not detailedly described in the specification of the present invention belongs to the prior art well-known to those skilled in the art.

Claims

1. A multi-station punching and loading production line for plate parts, characterized in that, Including: A punching hydraulic unit composed of N hydraulic presses for punching metal sheets. The punching hydraulic unit is provided with a unified control system and working mode. A first directional conveying rack is fixedly matched with the first hydraulic platform of the first hydraulic press. A first pulley guiding rack is fixedly matched with the side with a lower horizontal height of the first directional conveying rack. A feeding conveying rack is fixedly matched with the left side of the first pulley guiding rack, and a first connecting conveying rack is fixedly matched with the right side of the first pulley guiding rack. A second directional conveying rack is fixedly matched with the second hydraulic platform of the second hydraulic press. A second pulley guiding rack is fixedly matched with the side with a lower horizontal height of the second directional conveying rack. A first connecting conveying rack is fixedly matched with the left side of the second pulley guiding rack, and a second connecting conveying rack or a blanking conveying rack is fixedly matched with the right side of the second pulley guiding rack. When N is set to 2, a blanking conveying rack is fixedly matched with the right side of the second pulley guiding rack. When N is set to be greater than 2, a second connecting conveying rack is fixedly matched with the right side of the second pulley guiding rack. And so on, an Nth directional conveying rack is fixedly matched with the Nth hydraulic platform of the Nth hydraulic press. An Nth pulley guiding rack is fixedly matched with the side with a lower horizontal height of the Nth directional conveying rack. An (N - 1)th connecting conveying rack is fixedly matched with the left side of the Nth pulley guiding rack, and a blanking conveying rack is fixedly matched with the right side. Wherein, N is a positive integer greater than or equal to 2.

2. The multi-station punching and loading production line for sheet metal according to claim 1, wherein, The structures of the directional conveying racks are the same, including: a directional conveying rack bottom plate, on which 4 support columns are fixedly connected. The upper ends of 2 support columns on the left side or the right side are respectively fixedly connected with a first servo motor and a second servo motor. A left feeding rack and a right feeding rack are respectively fixedly connected to the 2 support columns on the left and right sides. A synchronous belt is installed between the left feeding rack and the right feeding rack. A feeding platform, a connecting platform and a receiving platform are sequentially arranged between them from the side close to the hydraulic platform to the side far from the hydraulic platform. The synchronous belt covers the feeding platform, the connecting platform and the receiving platform. The left feeding rack, the right feeding rack and the synchronous belt form a feeding platform. The feeding platform is divided into three sections. The side with a lower horizontal height is the receiving platform, the side with a higher horizontal height is the feeding platform, and a connecting platform is installed between the receiving platform and the feeding platform. The connecting surface of the connecting platform is an inclined surface. A first rod-guided cylinder is arranged on the lower side of the end of the left feeding rack close to the hydraulic platform, and a second rod-guided cylinder is arranged on the lower side of the end of the right feeding rack close to the hydraulic platform. The first rod-guided cylinder and the second rod-guided cylinder are fixedly connected to the 2 support columns close to the hydraulic platform. A left guiding rack is fixedly connected to the upper side of the end of the left feeding rack in the feeding direction, and a right guiding rack is fixedly connected to the upper side of the end of the right feeding rack in the feeding direction.

3. The multi-station punching and loading production line for sheet metal according to claim 1, wherein The first hydraulic platform of the first hydraulic press is cooperatively connected with the feeding platform of the first directional conveying rack, and their horizontal heights are the same. The installation connection modes of the remaining N - 1 hydraulic presses with the corresponding directional conveying racks are the same as the installation connection mode of the first hydraulic press with the first directional conveying rack.

4. The multi-station punching and loading production line for sheet metal according to claim 1, wherein The structures of each pulley guide frame are the same, including: a pulley guide frame bottom plate, on which several support columns are fixedly connected. At the top of the support columns, a pulley installation platform is fixedly connected. On the pulley installation platform, a universal pulley group is fixedly connected; on the lower side surface of the pulley installation platform, a horizontal guide belt rod cylinder and a vertical guide belt rod cylinder are fixedly connected; the pulley installation platform is provided with 2 horizontal guide grooves and 1 vertical guide groove penetrating the upper and lower side surfaces of the platform; the horizontal guide belt rod cylinder includes a first guide rod and a second guide rod passing through the horizontal guide groove, and the first guide rod and the second guide rod provide the acting force for the hydraulic component to slide away from the pulley guide frame; the vertical guide belt rod cylinder includes a vertical guide rod passing through the vertical guide groove, and the vertical guide rod provides the acting force for the hydraulic component to enter the directional conveying frame; the pulley installation platforms of each pulley guide frame are cooperatively connected with the receiving platforms of the corresponding directional conveying frames, and their horizontal heights are the same; on the left side of each pulley guide frame, a feeding conveyor or a connecting conveyor supporting the previous hydraulic press is connected, and on the right side, a connecting conveyor supporting this pulley guide frame or a discharging conveyor is connected.

5. The multi-station punching and loading production line for sheet metal according to claim 1, wherein, The feeding conveyor includes: a feeding conveyor bottom plate, on which several support columns are fixedly connected. At the top of the support columns, a left feeding frame, a middle feeding frame and a right feeding frame are fixedly connected. Protective fences are fixedly installed at the left side of the left feeding frame and the upper right side of the right feeding frame. A second feeding synchronous belt is installed between the left feeding frame and the middle feeding frame, and a first feeding synchronous belt is installed between the middle feeding frame and the right feeding frame. A first synchronous motor and a second synchronous motor are connected to the left side of the left feeding frame or the right side of the right feeding frame; the feeding conveyor bottom plate of the feeding conveyor is cooperatively connected with the pulley guide frame bottom plate of the pulley guide frame, and the feeding conveyor and the pulley guide frame have the same horizontal height.

6. The multi-station punching and loading production line for sheet metal according to claim 1, characterized in that, Each connecting conveyor includes: a connecting conveyor bottom plate, on which several support columns are fixedly connected. At the top of the support columns, a left conveyor, a middle conveyor and a right conveyor are fixedly connected; a first conveying synchronous belt is installed between the left conveyor and the middle conveyor, a second conveying synchronous belt is installed between the middle conveyor and the right conveyor, and two synchronous motors are cooperatively connected to the left side of the left conveyor or the right side of the right conveyor belt.

7. The multi-station punching and loading production line for sheet metal according to claim 6, characterized in that, The left side of the connecting conveyor bottom plate of the connecting conveyor is cooperatively connected with the feeding conveyor bottom plate of the feeding conveyor. The two sides of the connecting conveyor bottom plate of the connecting conveyor are respectively cooperatively connected with the pulley guide frame bottom plates of the pulley guide frames supporting the previous hydraulic press and the pulley guide frames supporting the next hydraulic press. The horizontal heights of each connecting conveyor and each pulley guide frame are the same.

8. The multi-station punching and loading production line for sheet metal according to claim 1, wherein, The blanking conveying rack includes: a blanking conveying rack bottom plate, on which several support columns are fixedly connected. The top ends of the support columns are fixedly connected with a left blanking rack, a middle blanking rack and a right blanking rack. A first blanking synchronous belt is installed between the left blanking rack and the middle blanking rack, and a second blanking synchronous belt is installed between the middle blanking rack and the right blanking rack; a blanking synchronous motor is connected in cooperation with the right side of the right blanking rack, the left side of the left blanking rack or other suitable parts; the upper parts of the left blanking rack, the middle blanking rack and the right blanking rack, as well as the first blanking synchronous belt and the second blanking synchronous belt form a blanking conveying platform, and the blanking conveying platform slopes downward; the horizontal part between the lower parts of the left blanking rack, the middle blanking rack and the right blanking rack forms a blanking placement platform.

9. The multi-station punching and loading production line for sheet metal according to claim 8, wherein The blanking conveying rack bottom plate of the blanking conveying rack is connected in cooperation with the pulley guiding rack bottom plate of the N - th pulley guiding rack, and the left ends of the pulley guiding rack and the blanking conveying rack are at the same horizontal height.

10. The multi-station plate punching and loading production line according to claim 1, characterized in that, Each hydraulic press in the punching hydraulic machine set is set to have an independent control system and working mode respectively, and the three hydraulic presses cooperate with each other through an automation system and a data interaction mechanism.

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