Automatic workpiece carrying and stamping production line

Abstract

The utility model relates to an automatic workpiece carrying and stamping production line which comprises a control panel, a feeding machine used for automatically taking, placing and straightening workpieces, a stamping machine used for stamping the workpieces, a receiving belt conveying line used for conveying the workpieces and a material frame used for storing the workpieces. The swing arm manipulator is used for transferring a workpiece of the feeding machine to one stamping machine, transferring a workpiece of the stamping machine to another stamping machine or transferring a workpiece of the stamping machine to the receiving belt conveying line; the material frame is positioned at an outlet of the receiving belt conveying line; according to the production line, automatic carrying and automatic punching of the workpieces and automatic straightening of the positions of the workpieces are achieved, the requirement for manual operation is reduced, and the production efficiency is greatly improved. The automatic operation process can effectively save time and labor cost, and the overall efficiency of the production line is improved.

Description

Technical Field

[0001] The utility model relates to a production line for automatic transport and automatic stamping of workpieces. Background Art

[0002] Automated production lines play a vital role in industrial production. They connect various machines and equipment to achieve efficient production and processing of products. In traditional production lines, a large number of manpower is usually required to carry, position and operate, which is not only inefficient, but also has the possibility of human operation errors, and also increases the labor intensity and safety risks of workers.

[0003] In order to solve these problems, the development of automated production lines has become increasingly important. Among them, automatic workpiece handling and automatic stamping are one of the important links in automated production lines. Traditional automated production lines usually use equipment such as conveyor belts or manipulators to complete the handling and positioning of workpieces, but in some cases, the shape, size or weight of the workpiece may impose certain limitations on traditional automation solutions.

[0004] Limitations on the placement of workpieces of various shapes: Traditional automated production lines usually use fixed fixtures or molds to place workpieces. This design can only accommodate workpieces of specific shapes or sizes, and cannot be effectively applied to workpieces of various shapes. For example, for irregularly shaped or curved workpieces, it is difficult for traditional fixtures to achieve precise positioning, which can easily lead to unsatisfactory workpiece positioning.

[0005] Insufficient workpiece alignment: The workpiece alignment devices in the prior art often lack flexibility and accuracy and cannot meet the requirements of complex workpieces. Especially when there are large differences in workpiece shape, size, weight, etc., traditional alignment devices often find it difficult to accurately position the workpiece, which easily leads to errors and instability in the subsequent automatic stamping process.

[0006] Affecting the accuracy and stability of subsequent automatic stamping: Improper placement of the workpiece will directly affect the accuracy and stability of subsequent automatic stamping. If the workpiece is not accurately placed and positioned, it may cause deviation, dislocation or damage to the stamping machine during the processing process, thus affecting the quality and production efficiency of the product.

[0007] In summary, the existing technology has certain limitations in the placement of workpieces, and cannot meet the requirements of the position of workpieces of various shapes. Insufficient position of the workpiece will have a great impact on the subsequent automatic stamping, and the suction cup will suck and release the workpiece in a stable manner during transportation. Therefore, redesigning and optimizing the placement of workpieces to improve their flexibility, accuracy and stability is of great significance to improving the efficiency and quality of automated production lines. Utility Model Content

[0008] The utility model aims to provide a production line for automatic workpiece handling and automatic stamping, which improves the automation degree and production efficiency of the production line and reduces the labor cost and operation risk.

[0009] The purpose of the utility model is achieved in this way:

[0010] A production line for automatic workpiece handling and automatic stamping, comprising a control panel, a feeding machine for automatically picking up, placing and aligning workpieces, a stamping machine for stamping workpieces, a receiving belt conveyor line for transporting workpieces, a material frame for storing workpieces, a swing arm manipulator for transferring workpieces from the feeding machine to the stamping machine, for transferring workpieces from the stamping machine to another stamping machine or for transferring workpieces from the stamping machine to the receiving belt conveyor line, wherein the material frame is located at the exit of the receiving belt conveyor line;

[0011] The stamping machine, the receiving belt conveyor line, the swing arm manipulator, the residual material detection device and the feeding machine are electrically connected to the control panel respectively;

[0012] The feeding machine includes a frame, a material handling device, a residual material detection device using the reflection principle, and a workpiece position alignment device. The frame is provided with a first material discharge area, a second material discharge area, and a workpiece alignment area. The first material discharge area and the second material discharge area are located on the left and right sides of the workpiece alignment area.

[0013] The surface of the first material discharging area is lower than the surface of the workpiece aligning area, and a first material discharging space is formed between the surface of the first material discharging area and the surface of the workpiece aligning area;

[0014] The surface of the second material discharging area is lower than the surface of the workpiece straightening area, and a second material discharging space is formed between the surface of the second material discharging area and the surface of the workpiece straightening area;

[0015] The material handling device includes a transverse guide rail, a transverse rack, a slider, a motor, a gear, a lifting assembly and a workpiece picking and placing assembly. The frame is provided with a placing rack above the workpiece alignment area, and the transverse guide rail and the transverse rack are provided on the placing rack;

[0016] The slider is slidably arranged on the transverse guide rail, the motor and the lifting assembly are arranged on the slider, the gear is arranged on the rotating shaft of the motor, the gear is meshed with the transverse rack, the motor drives the gear to rotate, and the gear slides along the length direction of the transverse rack, thereby pushing the slider to move along the transverse guide rail, thereby driving the lifting assembly to slide along the length direction of the transverse guide rail;

[0017] The workpiece picking and placing assembly is arranged on the lifting assembly, and the workpiece picking and placing assembly follows the lifting assembly to slide along the length direction of the transverse guide rail;

[0018] The workpiece position alignment device is arranged on the workpiece alignment area, and the residual material detection device is respectively arranged at the first material discharge space and the second material discharge space. The residual material detection device is used to monitor whether there are workpieces in the first material discharge space and the second material discharge space and feedback to the control panel. The control panel controls the start and stop of the material handling device, the feeding machine, the stamping machine, the material receiving belt conveyor line and the swing arm robot.

[0019] The swing arm manipulator is arranged between the feeding machine and the stamping machine, the swing arm manipulator is arranged between the stamping machine and another stamping machine, and the swing arm manipulator is arranged between the stamping machine and the receiving belt conveyor line;

[0020] The swing arm manipulator comprises a fuselage, a suction hand, a swing arm, a rotating module for driving the swing arm to rotate, a telescopic module for driving the swing arm to extend and retract, and a lifting module for driving the swing arm to lift and lower. The rotating module, the telescopic module, and the lifting module are all arranged on the fuselage. The swing arm is arranged on the fuselage and respectively connected to the rotating module, the telescopic module, and the lifting module. The suction hand is arranged on the swing arm.

[0021] The suction hand comprises a suction cup assembly, a transverse connecting rod, a connecting plate and a bolt, wherein the connecting plate is fixed to the swing arm, the transverse connecting rod is provided with a position adjustment slot along its length direction, and the bolt passes through the corresponding position of the position adjustment slot and locks the connecting plate, so that the transverse connecting rod is adjusted in position and fixed to the connecting plate;

[0022] The suction cup assembly includes a suction cup and a connecting piece, one end of the connecting piece is connected to the suction cup, and the other end of the connecting piece is connected to the end of a transverse connecting rod, an air port is opened at the center position of the suction cup, the connecting piece is opened with an air channel, and an air nozzle for connecting an air pump is opened on the side wall of the connecting piece, and the air port, the air nozzle and the air channel are connected.

[0023] Improve production efficiency: The production line realizes automatic handling, automatic stamping, and automatic positioning of workpieces, reducing the need for manual operation and greatly improving production efficiency. The automated operation process can effectively save time and labor costs and improve the overall efficiency of the production line.

[0024] Improve processing accuracy: The design of the workpiece position alignment device can ensure the accurate placement of the workpiece before stamping, thereby improving the accuracy and consistency of the stamping process. Each workpiece can be stamped at the same position, avoiding processing errors caused by position offset and improving product quality and consistency.

[0025] Realize intelligent management: All parts of the entire production line are electrically connected to the control panel, and the presence of workpieces is monitored through the residual material detection device, and real-time feedback is given to the control panel. The control panel can intelligently control the start and stop of the material handling device, feeding machine, stamping machine, material collection belt conveyor line and swing arm manipulator, realizing intelligent management and automated operation of the production line.

[0026] Improve production efficiency: The setting of the swing arm manipulator enables the workpiece to be transferred quickly and accurately between different processes, avoiding delays and errors that may occur during manual handling, thereby improving the overall efficiency of the production line. The workpiece can be transferred directly from the feeding machine to the stamping machine, and then to the next stamping machine or the receiving belt conveyor line. The whole process is automated, saving a lot of manpower and time costs.

[0027] Suction Hand Setting: The suction hand is located at the end of the swing arm and is used to grab and release the workpiece. The suction hand is reasonably designed and flexible to operate, which can ensure the stable grabbing and safe release of the workpiece, thereby improving work efficiency and production quality.

[0028] Rotation module: The rotation module is installed on the machine body and is used to drive the swing arm to rotate horizontally. Through the control of the rotation module, the swing arm manipulator can accurately locate and transfer the workpiece in the horizontal direction, realizing the precise positioning and direction adjustment of the workpiece.

[0029] Telescopic module: The telescopic module is installed on the machine body and is used to drive the swing arm to perform telescopic movement in the length direction. The function of the telescopic module is to adjust the length of the swing arm so that it can adapt to workpieces of different sizes and shapes, enhancing the applicability and versatility of the manipulator.

[0030] Lifting module: The lifting module is installed on the machine body and is used to drive the swing arm to perform vertical lifting movement. The lifting module can adjust the height of the swing arm as needed to achieve precise control of the vertical direction of the workpiece, ensuring the safe handling and positioning of the workpiece.

[0031] The suction arm is mainly composed of a suction cup assembly, a transverse connecting rod and a bolt. The suction cup assembly is connected to the swing arm through the connecting rod. Its working principle is to use the suction force generated by the air pump to adsorb the workpiece on the suction cup, and then push the workpiece out through the repulsive force generated by the exhaust of the air pump. The working principle of this suction cup assembly has a significant effect and can effectively realize the suction and discharge of workpieces, thereby improving production efficiency and automation.

[0032] The first purpose of the utility model can also be solved by the following technical measures:

[0033] Furthermore, the first material discharging area is provided with a workpiece fence, and the workpieces are stacked in the workpiece fence, and the second material discharging area is provided with a workpiece fence, and the workpieces are stacked in the workpiece fence.

[0034] The first unloading area is equipped with a workpiece fence, so that the workpieces can be stacked firmly in the fence, effectively preventing the workpieces from tilting or collapsing due to unstable stacking. This design can ensure that the workpieces remain stable during the placement process, avoiding production line failures and reduced production efficiency caused by improper placement of workpieces.

[0035] At the same time, the second unloading area adopts the same structure as the first unloading area. This design not only maintains the overall consistency and symmetry, but also makes the production line more reusable and maintainable. Operators can more easily grasp the layout and working principle of the unloading area during use, which reduces the difficulty of operation and the error rate, and further improves the stability and production efficiency of the production line.

[0036] In summary, by setting up workpiece fences and maintaining the consistency of the discharge area structure, the innovatively designed production line not only improves the stability and stacking efficiency of the workpieces, but also simplifies the operating process and improves the overall performance and operability of the production line.

[0037] Further, the workpiece fence includes a first railing plate and a second railing plate, the first railing plate and the second railing plate are opposite to each other, the residual material detection device includes a light source module, a photoelectric sensor module, a signal processing unit and a comparator module, the photoelectric sensor module is arranged on the first railing plate and close to its bottom position, the light source module is arranged on the second railing plate and close to its bottom position, the photoelectric sensor module and the light source module are opposite to each other, and the light source module, the photoelectric sensor module, the signal processing unit, the comparator module and the control panel are electrically connected;

[0038] The light generated by the light source module is emitted toward the photoelectric sensor module;

[0039] If the workpiece exists, the workpiece blocks the light and the photoelectric sensor cannot receive the light signal. After analysis by the signal processing unit and the comparator module, a material presence signal is fed back to the control panel. If the workpiece does not exist, the photoelectric sensor module receives the light signal. After analysis by the signal processing unit and the comparator module, a material absence signal is fed back to the control panel.

[0040] Accurate detection of workpieces: The opposing setting of the light source module and the photoelectric sensor module can achieve accurate detection of workpieces. When the workpiece exists, the workpiece will block the light, causing the photoelectric sensor module to be unable to receive the light signal, thereby generating a material signal to be fed back to the control panel; conversely, if the workpiece does not exist, the photoelectric sensor module can receive the light signal and generate a no material signal to be fed back to the control panel. This design ensures accurate judgment of whether the workpiece exists, effectively avoids false detection or missed detection, and ensures the accuracy and stability of the production process.

[0041] Real-time feedback of production status: By analyzing and processing the optical signals received by the photoelectric sensor module through the signal processing unit and the comparator module, real-time monitoring and feedback of the workpiece status can be achieved. The control panel of the production line can make corresponding adjustments and controls in time according to these signals to maintain the normal operation of the production line, thereby improving production efficiency and production quality.

[0042] Save human resources: The automated residual material detection device can replace manual workpiece detection tasks, reduce human resource input, and improve the automation and intelligence level of the production line. This not only reduces the errors caused by human factors, but also reduces production costs and improves production efficiency.

[0043] Improve the stability of the production line: The reliable residual material detection system can timely detect and handle abnormal situations such as workpiece accumulation or material shortage, ensuring the stable operation of the production line. Timely feedback information helps prevent production failures, ensures continuous and stable operation of the production line, and improves the overall efficiency and production capacity of the production line.

[0044] To sum up, the setting of the workpiece fence and the design of the residual material detection device can effectively achieve beneficial effects such as accurate detection of workpieces, real-time feedback of production status, saving human resources and improving the stability of the production line, thereby comprehensively improving the automation level and production efficiency of the production line.

[0045] Further, the upper portion of the first vertical slideway is spaced apart with locking bolt holes, and the first clamping column is screwed onto the corresponding locking bolt holes;

[0046] The upper portion of the second vertical slideway is provided with locking bolt holes, and the second clamping column is screwed onto the corresponding locking bolt holes;

[0047] The left portion of the first transverse slideway is provided with locking bolt holes, and the third clamping column is screwed on the corresponding locking bolt holes;

[0048] The left portion of the second transverse slideway is provided with locking bolt holes, and the fourth clamping column is screwed onto the corresponding locking bolt holes.

[0049] Flexibility and diversity: Adjusting the positions of the first, second, third and fourth hold-down posts allows for customized settings based on the size, shape and weight of the workpiece. This allows the production line to be flexible and adaptable to different types of workpieces without having to replace the entire unit, increasing the diversity and applicability of the production line.

[0050] Optimize work efficiency: By adjusting the characteristics of different workpieces, the workpieces can be more stable and accurate during the alignment process. Accurately adjusting the position of the clamping column can ensure that the workpiece will not deviate or become unstable during the placement process, improving the work efficiency and production quality of the production line.

[0051] Reduced manual intervention: Adjusting the position of the clamping column can realize intelligent control of the automated production line, reducing the need for manual intervention. Once the corresponding parameters are set, the production line can automatically identify and adapt to different types of workpieces, reducing the workload of operators and improving the degree of automation of the production line.

[0052] Cost saving: By adjusting the position of the clamping column to accommodate the placement of different workpieces, it is possible to avoid the need to purchase additional devices or equipment due to different workpiece sizes or shapes. This can save costs and improve the economic benefits of the production line.

[0053] In summary, by adjusting the position of the clamping column to adapt to the placement of different types of workpieces, the flexibility and diversity of the production line can be improved, work efficiency can be optimized, manual intervention can be reduced, and costs can be saved, thereby comprehensively improving the production capacity and competitiveness of the production line.

[0054] Furthermore, the lifting assembly includes a lifting motor, a lifting arm and a connecting shell, the connecting shell is provided with a channel for the lifting arm to pass through, the lifting arm side plate is provided with a tooth plate, the lifting arm is placed in the channel, and the lower end of the lifting arm is connected to the bottom plate;

[0055] The rotating shaft of the lifting motor is provided with a gear part, and the lifting motor is arranged on the connecting shell. The gear part extends into the channel and meshes with the tooth plate. The lifting motor drives the lifting arm to rise and fall through the gear part and the tooth plate.

[0056] Improved stability and reliability: By using a lifting motor to drive the lifting arm, the stability and reliability of the lifting action can be ensured. The rotation of the motor is transmitted to the lifting arm through the cooperation of the gear and the tooth plate. This structure can effectively transmit power and has high working efficiency, thereby improving the stability and reliability of the lifting.

[0057] Precise control: The lifting motor can accurately control the movement of the lifting arm by controlling the current or speed, thereby achieving precise positioning of the workpiece. This ensures the accuracy of the position of the workpiece during the handling process and improves the working accuracy of the production line.

[0058] Space saving: A passage is opened inside the connecting shell for the lifting arm to pass through, so that the lifting arm can move freely in the passage. This design can save space for the equipment, making the structure of the entire feeding machine more compact and suitable for production sites with limited space.

[0059] Easy maintenance: The connection shell is designed with a passage for the lifting arm to pass through, which makes it easier to maintain the lifting arm and the connection shell. If the lifting arm or motor needs to be repaired or replaced, the operator can directly enter the connection shell through the passage, which simplifies the maintenance process and reduces maintenance time and cost.

[0060] Improve work efficiency: Since the lifting arm can be raised and lowered quickly by the motor, the working efficiency of the feeding machine can be improved. The fast lifting action can shorten the handling time of the workpiece, thereby improving the working efficiency and production capacity of the entire production line.

[0061] In summary, designing the lifting component to include a lifting motor, a lifting arm and a connecting shell can improve the stability, precise control ability and working efficiency of the feeding machine, while saving space and facilitating maintenance, thereby comprehensively improving the production efficiency and competitiveness of the production line.

[0062] Furthermore, the workpiece picking and placing assembly includes an extension plate, a swing arm and a suction cup, one end of the extension plate is connected to the base plate, and the other end of the extension plate extends outward, and the extension plate is provided with connecting holes spaced apart along its length direction, one end of the swing arm is fixed on the connecting hole, and the other end of the swing arm is connected to the suction cup.

[0063] Enhanced flexibility and applicability: The design of the extension plate allows the swing arm to extend along its length, and the swing arm can be fixed to different connection holes on the extension plate. This design can be flexibly adjusted according to the size and shape of the workpiece to meet the needs of picking and placing different workpieces. This design improves the applicability of the workpiece picking and placing assembly, enabling it to handle workpieces of various shapes and sizes.

[0064] Improved stability: The end of the extension plate connected to the bottom plate provides a firm support for the swing arm, ensuring the stability and reliability of the swing arm. The fixation of the swing arm can effectively prevent shaking or swinging during the workpiece placement process, thereby ensuring the precise positioning and stable adsorption of the suction cup on the workpiece, improving the accuracy and success rate of placement.

[0065] Convenient operation: The suction cup is connected to one end of the swing arm so that the suction cup can easily follow the movement of the swing arm to pick up and place the workpiece. The operator can accurately adjust the position and angle of the suction cup by controlling the movement of the swing arm, thereby achieving accurate grasping and placement of the workpiece, improving work efficiency and convenience of operation.

[0066] Save space: The design of the extension plate allows the swing arm to be freely extended and retracted in the space without taking up extra space. This design saves space for the equipment and makes the structure of the entire feeding machine more compact, which is suitable for production sites with limited space.

[0067] Reliable adsorption: The connection method of the suction cup ensures a firm connection between it and the swing arm, while providing a reliable adsorption function. This design ensures that the suction cup maintains a good adsorption state during the process of picking and placing the workpiece, effectively preventing the workpiece from falling off or sliding during handling, and improving the safety and reliability of the work.

[0068] In summary, designing the workpiece picking and placing assembly to include an extension plate, a swing arm and a suction cup can improve the flexibility, stability and ease of operation of workpiece picking and placing, while saving space, ensuring the reliable adsorption of the suction cup to the workpiece, and comprehensively improving the working efficiency and production capacity of the feeding machine.

[0069] Furthermore, the workpiece picking and placing assembly also includes an air pump, the suction cup is provided with an air port, and the air pump is connected to the air port so that the suction cup generates suction force and release force.

[0070] Precisely control the suction force: Adding an air pump and an air port can achieve precise control of the suction force of the suction cup. By controlling the working state of the air pump and the switch of the air port, the suction force of the suction cup can be adjusted to adapt it to the suction requirements of different workpieces. This ensures stable adsorption of the workpiece in various situations and improves the accuracy and success rate of the pick-and-place operation.

[0071] Flexible adjustment of suction force: The air pump can provide adjustable air pressure, so that the suction force of the suction cup can be flexibly adjusted according to the specific situation. According to factors such as the material, shape and weight of the workpiece, the suction force of the suction cup can be precisely controlled by adjusting the air pump to ensure that the suction force matches the characteristics of the workpiece, thereby improving the suction effect and work efficiency.

[0072] Quick release of workpiece: In addition to providing suction, the air pump can also control the state of the air port so that the suction cup can quickly release the workpiece. By adjusting the working state of the air pump, the suction cup can be released from the workpiece in time, thereby achieving fast and accurate workpiece placement, improving work efficiency and convenience of operation.

[0073] Energy saving and environmental protection: The air pump can work as needed, and can be turned off when suction is not needed, saving energy and reducing energy consumption, meeting the requirements of energy saving and environmental protection.

[0074] In summary, the workpiece picking and placing component is designed to include an air pump, a suction cup and an air port, which can achieve precise control of the suction force of the suction cup, flexibly adjust the suction force, and quickly release the workpiece. At the same time, it is energy-saving and environmentally friendly, and comprehensively improves the working efficiency and production capacity of the feeding machine.

[0075] Furthermore, the suction cup is provided with a ring of annular magnets. The metal workpiece can be magnetically attracted to the suction cup, so that when the air pump generates suction, the magnetic force also increases the connection strength between the workpiece and the suction cup, ensuring that the workpiece is firmly attracted. This design improves the reliability and stability of the metal workpiece suction, thereby further improving the efficiency and accuracy of the production line.

[0076] Furthermore, the suction cup assembly also includes a push rod, the diameter of the airway is larger than the diameter of the air port, the diameter of the push rod is smaller than the diameter of the air port, the push rod is movably placed in the airway, the tail of the push rod is located in the airway, and the diameter of the tail of the push rod is smaller than the diameter of the airway and larger than the diameter of the air port, and the head of the push rod is exposed outside the air port.

[0077] The push rod is designed to be movably placed in the airway, with a diameter smaller than the diameter of the airway but larger than the diameter of the air port. This design ensures that the push rod can be freely retracted into and pushed out of the airway under the action of the air pump. When the suction cup absorbs the workpiece, the push rod will also retract into the airway, which helps to maintain the contact between the suction cup and the workpiece and ensure the adsorption effect. When the suction cup needs to push the workpiece out, the air pump exhaust will push the push rod outward, pushing the workpiece away from the suction cup smoothly, and at the same time, the magnetic force between the ring magnet and the metal workpiece disappears, which helps to ensure that the workpiece can be easily pushed out. This design can better control the process of sucking and pushing out the workpiece, improve the operating efficiency and stability of the suction cup assembly, and thus increase the overall efficiency of the production line.

[0078] The beneficial effects of the utility model are as follows:

[0079] The utility model can ensure the accurate placement of the workpiece before stamping through the design of the workpiece position alignment device, thereby improving the precision and consistency of the stamping process. Each workpiece can be stamped at the same position, avoiding processing errors caused by position offset, and improving product quality and consistency.

[0080] In the utility model, the opposing arrangement of the light source module and the photoelectric sensor module can realize accurate detection of the workpiece. When the workpiece exists, the workpiece will block the light, causing the photoelectric sensor module to be unable to receive the light signal, thereby generating a material signal to be fed back to the control panel; conversely, if the workpiece does not exist, the photoelectric sensor module can receive the light signal and generate a no material signal to be fed back to the control panel. Such a design ensures accurate judgment of whether the workpiece exists, effectively avoids false detection or missed detection, and ensures the accuracy and stability of the production process.

[0081] The utility model, the suction arm is mainly composed of a suction cup assembly, a transverse connecting rod and a bolt. The suction cup assembly is connected to the swing arm through the connecting rod. Its working principle is to use the suction force generated by the air pump to adsorb the workpiece on the suction cup, and then push the workpiece out through the repulsive force generated by the exhaust of the air pump. The working principle of this suction cup assembly has a significant effect, can effectively realize the suction and discharge of the workpiece, thereby improving production efficiency and automation.

[0082] In the utility model, the metal workpiece can be magnetically adsorbed to the suction cup, so that when the air pump generates suction, the magnetic force will also increase the connection strength between the workpiece and the suction cup, ensuring that the workpiece is firmly adsorbed. This design improves the reliability and stability of adsorbing metal workpieces, thereby further improving the efficiency and accuracy of the production line.

[0083] In the utility model, the push rod is designed to be movably placed in the airway, and its diameter is smaller than the diameter of the airway but larger than the diameter of the air port. This design can ensure that the push rod can be freely retracted into and pushed out of the airway under the action of the air pump. When the suction cup sucks the workpiece, the push rod will also retract into the airway, which helps to maintain the contact between the suction cup and the workpiece and ensure the adsorption effect. When the suction cup needs to push out the workpiece, the exhaust of the air pump will push the push rod outward, push the workpiece away from the suction cup smoothly, and at the same time make the magnetic force between the annular magnet and the metal workpiece disappear, which helps to ensure that the workpiece can be easily pushed out. This design can better control the process of sucking and pushing out the workpiece, improve the operating efficiency and stability of the suction cup assembly, and thus increase the overall efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] Figure 1 This is a schematic diagram of a production line for automatic workpiece handling and automatic stamping.

[0085] Figure 2 It is a schematic diagram of the feeding machine (the workpiece picking and placing component is located in the first placing area).

[0086] Figure 3 This is a schematic diagram of the feeding machine from another angle (the workpiece picking and placing component is located in the workpiece alignment area).

[0087] Figure 4This is a schematic diagram of the workpiece positioning device (without workpiece placed).

[0088] Figure 5 This is a schematic diagram of the workpiece positioning device (workpiece placement state).

[0089] Figure 6 It is a schematic diagram of the feeding machine from another angle (the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column are adjusted, and the workpiece picking and placing assembly is located in the workpiece alignment area).

[0090] Figure 7 It is a schematic diagram of the workpiece position alignment device (the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column are adjusted, and the workpiece picking and placing assembly is located in the workpiece alignment area).

[0091] Figure 8 It is a schematic diagram of the workpiece position adjustment device (adjust the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column).

[0092] Fig. 9 It is a schematic diagram of the feeding machine from another angle (the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column are adjusted, and the first pushing block, the second pushing block, the third pushing block and the fourth pushing block jointly push the workpiece to a straightened state).

[0093] Fig.10 It is a schematic diagram of the feeding machine from another angle (the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column are adjusted, the first pushing block, the second pushing block, the third pushing block and the fourth pushing block jointly push the workpiece to align it, and there is no material in the first discharge area at this time).

[0094] Fig.11 It is a schematic diagram of the feeding machine from another angle (the positions of the first clamping column, the second clamping column, the third clamping column and the fourth clamping column are adjusted, the first pushing block, the second pushing block, the third pushing block and the fourth pushing block jointly push the workpiece to straighten it, at this time the first discharge area is replenished, and the workpiece picking and placing assembly is in the second discharge area).

[0095] Fig.12 Schematic diagram of the swing-arm manipulator.

[0096] Fig.13 A schematic diagram of a stamping machine.

[0097] Fig.14 This is an enlarged view of part A of 12.

[0098] Fig.15 Schematic diagram of the suction cup assembly in the suction state.

[0099] Fig.16 This is a schematic diagram of the exhaust status of the suction cup assembly. DETAILED DESCRIPTION

[0100] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0101] Example, combined with Figures 1 to 16 As shown, a production line for automatic workpiece handling and automatic stamping includes a control panel 1, a feeding machine 2 for automatically picking up workpieces, automatically placing workpieces and automatically aligning the positions of workpieces, a stamping machine 3 for stamping workpieces, a receiving belt conveyor line 4 for transporting workpieces, a material frame 5 for storing workpieces, and a swing arm manipulator 6 for transferring workpieces from the feeding machine 2 to the stamping machine 3, for transferring workpieces from the stamping machine 3 to another stamping machine 3, or for transferring workpieces from the stamping machine 3 to the receiving belt conveyor line 4, wherein the material frame 5 is located at the exit of the receiving belt conveyor line 4;

[0102] The stamping machine 3, the receiving belt conveyor line 4, the swing arm manipulator 6, the residual material detection device and the feeding machine 2 are electrically connected to the control panel 1 respectively;

[0103] The feeding machine 2 includes a frame 21, a material handling device 7, a residual material detection device using the reflection principle and a workpiece position correction device 9. The frame 21 is provided with a first material discharge area 211, a second material discharge area 212 and a workpiece correction area 213. The first material discharge area 211 and the second material discharge area 212 are located on the left and right sides of the workpiece correction area 213.

[0104] The surface of the first material discharging area 211 is lower than the surface of the workpiece aligning area 213, and a first material discharging space is formed between the surface of the first material discharging area 211 and the surface of the workpiece aligning area 213;

[0105] The surface of the second material discharging area 212 is lower than the surface of the workpiece aligning area 213, and a second material discharging space is formed between the surface of the second material discharging area 212 and the surface of the workpiece aligning area 213;

[0106] The material handling device 7 includes a transverse guide rail 71, a transverse rack 72, a slider 73, a motor 74, a gear 75, a lifting assembly 76 and a workpiece placing assembly 77. The frame 21 is provided with a placing rack 22 above the workpiece alignment area 213, and the transverse guide rail 71 and the transverse rack 72 are provided on the placing rack 22;

[0107] The slider 73 is slidably disposed on the transverse guide rail 71, the motor 74 and the lifting assembly 76 are disposed on the slider 73, the gear 75 is disposed on the rotating shaft of the motor 74, the gear 75 is meshed with the transverse rack 72, the motor 74 drives the gear 75 to rotate, and the gear 75 slides along the length direction of the transverse rack 72, thereby pushing the slider 73 to move along the transverse guide rail 71, thereby driving the lifting assembly 76 to slide along the length direction of the transverse guide rail 71;

[0108] The workpiece pick-up and placement assembly 77 is disposed on the lifting assembly 76 , and the workpiece pick-up and placement assembly 77 follows the lifting assembly 76 to slide along the length direction of the transverse guide rail 71 ;

[0109] The workpiece position alignment device 9 is arranged on the workpiece alignment area 213, and the workpiece position alignment device 9 comprises a first vertical slide 91, a second vertical slide 92, a first transverse slide 93 and a second transverse slide 94, wherein the first vertical slide 91, the second vertical slide 92, the first transverse slide 93 and the second transverse slide are slidably connected and communicated to form a "tic-tac-toe" slide 8;

[0110] A first pressing column 911 is disposed at the upper portion of the first vertical slide 91, and a first pushing block 912 is also disposed on the first vertical slide 91. The first pushing block 912 is slidably disposed on the first vertical slide 91. A first cylinder 913 is disposed at the lower portion of the first vertical slide 91. The telescopic rod of the first cylinder 913 is connected to the first pushing block 912, and the first cylinder 913 drives the first pushing block 912 to move.

[0111] A second pressing column 921 is disposed at the upper portion of the second vertical slide 92, and a second pushing block 922 is also disposed on the second vertical slide 92. The second pushing block 922 is slidably disposed on the second vertical slide 92, and a second cylinder 923 is disposed at the lower portion of the second vertical slide 92. The telescopic rod of the second cylinder 923 is connected to the second pushing block 922, and the second cylinder 923 drives the second pushing block 922 to move.

[0112] A third pressing column 931 is disposed on the left portion of the first transverse slide 93, and a third pushing block 932 is also disposed on the first transverse slide 93. The third pushing block 932 is slidably disposed on the first transverse slide 93. A third cylinder 933 is disposed on the right portion of the first transverse slide 93. The telescopic rod of the third cylinder 933 is connected to the third pushing block 932, and the third cylinder 933 drives the third pushing block 932 to move.

[0113] A fourth pressing column 941 is disposed on the left portion of the second transverse slide 94, and a fourth pushing block 942 is also disposed on the second transverse slide 94. The fourth pushing block 942 is slidably disposed on the first transverse slide 93, and a fourth cylinder 943 is disposed on the right portion of the first transverse slide 93. The telescopic rod of the fourth cylinder 943 is connected to the fourth pushing block 942, and the fourth cylinder 943 drives the fourth pushing block 942 to move;

[0114] The first pressing column 911, the second pressing column 921, the third pressing column 931, the fourth pressing column 941, the first pushing block 912, the second pushing block 922, the third pushing block 932 and the fourth pushing block 942 form a workpiece clamping area 100;

[0115] The first pushing block 912 is provided with a first pressure detector on the end surface facing the workpiece clamping area 100, the second pushing block 922 is provided with a second pressure detector on the end surface facing the workpiece clamping area 100, the third pushing block 932 is provided with a third pressure detector on the end surface facing the workpiece clamping area 100, and the fourth pushing block 942 is provided with a fourth pressure detector on the end surface facing the workpiece clamping area 100;

[0116] The residual material detection device is respectively arranged at the first material discharge space and the second material discharge space, and is used to monitor whether there are workpieces in the first material discharge space and the second material discharge space and feed back to the control panel 1. The control panel 1 controls the start and stop of the material handling device 7, the feeding machine 2, the stamping machine 3, the material receiving belt conveyor line 4 and the swing arm manipulator 6.

[0117] Furthermore, the first material discharging area 211 is provided with a workpiece fence 200 , and the workpieces are stacked in the workpiece fence 200 . The second material discharging area 212 is provided with a workpiece fence 200 , and the workpieces are stacked in the workpiece fence 200 .

[0118] Further, the workpiece fence 200 includes a first railing plate 201 and a second railing plate 202, the first railing plate 201 and the second railing plate 202 are opposite to each other, the residual material detection device includes a light source module, a photoelectric sensor module, a signal processing unit and a comparator module, the photoelectric sensor module is arranged on the first railing plate 201 and close to its bottom position, the light source module is arranged on the second railing plate 202 and close to its bottom position, the photoelectric sensor module and the light source module are opposite to each other, and the light source module, the photoelectric sensor module, the signal processing unit, the comparator module and the control panel 1 are electrically connected;

[0119] The light generated by the light source module is emitted toward the photoelectric sensor module;

[0120] If the workpiece exists, the workpiece blocks the light, and the photoelectric sensor cannot receive the light signal. After analysis by the signal processing unit and the comparator module, a material signal is fed back to the control panel 1. If the workpiece does not exist, the photoelectric sensor module receives the light signal. After analysis by the signal processing unit and the comparator module, a material-free signal is fed back to the control panel 1.

[0121] Further, the upper portion of the first vertical slideway 91 is spaced apart with locking bolt holes, and the first clamping column 911 is screwed onto the corresponding locking bolt holes;

[0122] The upper portion of the second vertical slideway 92 is provided with locking bolt holes, and the second clamping column 921 is screwed onto the corresponding locking bolt holes;

[0123] The left portion of the first transverse slideway 93 is provided with locking bolt holes, and the third clamping column 931 is screwed on the corresponding locking bolt holes;

[0124] The left portion of the second transverse slideway 94 is provided with locking bolt holes, and the fourth clamping column 941 is screwed onto the corresponding locking bolt holes.

[0125] Furthermore, the lifting assembly 76 includes a lifting motor 761, a lifting arm 762 and a connecting shell 763, the connecting shell 763 is provided with a channel 7631 for the lifting arm 762 to pass through, the side plate of the lifting arm 762 is provided with a tooth plate 7621, the lifting arm 762 is placed in the channel 7631, and the lower end of the lifting arm 762 is connected to the bottom plate 7622;

[0126] The rotating shaft of the lifting motor 761 is provided with a gear part. The lifting motor 761 is arranged on the connecting shell 763. The gear part extends into the channel 7631 and meshes with the tooth plate 7621. The lifting motor 761 drives the lifting arm 762 to rise and fall through the gear part and the tooth plate 7621.

[0127] Furthermore, the workpiece picking and placing assembly 77 includes an extension plate 771, a swing arm portion 772 and a suction cup 773, wherein one end of the extension plate 771 is connected to the base plate 7622, ​​and the other end of the extension plate 771 extends outward, and the extension plate 771 is provided with connecting holes spaced apart along its length direction, one end of the swing arm portion 772 is fixed on the connecting hole, and the other end of the swing arm portion 772 is connected to the suction cup 773.

[0128] Furthermore, the workpiece picking and placing assembly 77 also includes an air pump, and the suction cup 773 is provided with an air port, and the air pump and the air port are connected so that the suction cup 773 generates suction force and release force.

[0129] Furthermore, the swing arm robot 6 is arranged between the feeding machine 2 and the stamping machine 3 , the swing arm robot 6 is arranged between the stamping machine 3 and another stamping machine 3 , and the swing arm robot 6 is arranged between the stamping machine 3 and the receiving belt conveyor line 4 .

[0130] Furthermore, the swing arm robot 6 includes a fuselage 61, a suction hand 62, a swing arm 63, a rotating module for driving the swing arm 63 to rotate, a telescopic module for driving the swing arm 63 to extend and retract, and a lifting module for driving the swing arm 63 to rise and fall. The rotating module, the telescopic module, and the lifting module are all arranged on the fuselage 61, the swing arm 63 is arranged on the fuselage 61 and is respectively connected to the rotating module, the telescopic module, and the lifting module, and the suction hand 62 is arranged on the swing arm 63.

[0131] Further, the suction hand 62 includes a suction cup assembly 621, a transverse connecting rod 622, a connecting plate 623 and a bolt. The connecting plate 623 is fixed to the swing arm 63. The transverse connecting rod 622 has a position adjustment slot 6221 along its length direction. The bolt passes through the corresponding position of the position adjustment slot 6221 and locks the connecting plate 623, so that the transverse connecting rod 622 is adjusted in position and fixed on the connecting plate 623.

[0132] Furthermore, the suction cup assembly 621 includes a suction cup 773 and a connecting piece 625, one end of the connecting piece 625 is connected to the suction cup 773, and the other end of the connecting piece 625 is connected to the end of the transverse connecting rod 622, an air port 6241 is opened at the center position of the suction cup 773, the connecting piece 625 is opened with an air channel 6251, and an air nozzle 6252 for connecting an air pump is opened on the side wall of the connecting piece 625, and the air port 6241, the air nozzle 6252 and the air channel 6251 are connected.

[0133] Furthermore, the suction cup 773 is provided with a circle of annular magnets 6242 .

[0134] Furthermore, the suction cup assembly 621 also includes a push rod 300, the diameter of the airway 6251 is larger than the diameter of the air port 6241, the diameter of the push rod 300 is smaller than the diameter of the air port 6241, the push rod 300 is movably placed in the airway 6251, the tail of the push rod 300 is located in the airway 6251, and the tail diameter of the push rod 300 is smaller than the diameter of the airway 6251 and larger than the diameter of the air port 6241, and the head of the push rod 300 is exposed outside the air port 6241.

[0135] A method for automatically transporting and punching workpieces on a production line comprises the following steps:

[0136] Step 1: manually adjust the positions of the first pressing column 911, the second pressing column 921, the third pressing column 931 and the fourth pressing column 941 to limit the placement position of the workpiece and preset the clamping pressure value;

[0137] Step 2: manually or by machine, the workpieces are stored in the workpiece fence 200 of the first material discharging space and in the workpiece fence 200 of the second material discharging space, and the production line is started through the control panel 1;

[0138] Step 3: The motor 74 drives the workpiece pick-up and placement assembly 77 to move horizontally along the horizontal guide rail 71 to the first material discharge space through the gear 75 and the horizontal rack 72;

[0139] Step 4: The lifting motor 761 drives the workpiece pick-up and placement assembly 77 to descend to the first material discharge space through the gear member and the gear 75 plate until the suction cup 773 of the workpiece pick-up and placement assembly 77 sucks the workpiece tightly;

[0140] Step 5: The lifting motor 761 drives the workpiece pick-up and placement assembly 77 to rise through the gear member and the gear 75 plate, so that the workpiece leaves the workpiece fence 200 and rises to above the first material discharge space;

[0141] Step 6: The motor 74 drives the workpiece pick-up and placement assembly 77 to move laterally along the transverse guide rail 71 to the workpiece alignment area 213 through the gear 75 and the transverse rack 72;

[0142] Step 7: The lifting motor 761 drives the workpiece pick-up and placement assembly 77 to descend through the gear member and the gear 75 plate. When the workpiece enters the workpiece clamping area 100, the suction cup 773 releases the workpiece;

[0143] Step eight: the first cylinder 913 drives the first pushing block 912 to move toward the workpiece clamping area 100, the second cylinder 923 drives the second pushing block 922 to move toward the workpiece clamping area 100, the third cylinder 933 drives the third pushing block 932 to move toward the workpiece clamping area 100, and the fourth cylinder 943 drives the fourth pushing block 942 to move toward the workpiece clamping area 100, so that the first clamping column 911, the second clamping column 921, the third clamping column 931, the fourth clamping column 941, the first pushing block 912, the second pushing block 922, the third pushing block 932 and the fourth pushing block 942 clamp the workpiece together;

[0144] Step nine: When the first pressure detector, the second pressure detector, the third pressure detector and the fourth pressure detector reach the preset clamping pressure value, it indicates that the workpiece has been placed and positioned, and the first pressure detector, the second pressure detector, the third pressure detector and the fourth pressure detector send a signal to the control panel 1, and the control panel 1 starts the swing arm manipulator 6, and the swing arm manipulator 6 sucks the workpiece of the feeding machine 2 and moves it to the first stamping machine 3, and the first stamping machine 3 stamps the workpiece;

[0145] Step 10: When the first stamping machine 3 finishes stamping, the swing arm manipulator 6 sucks the workpiece stamped by the first stamping machine 3 and moves it to the second stamping machine 3, and so on, until the stamping of the workpiece is completed, the swing arm manipulator 6 sucks the workpiece and moves it to the receiving belt conveyor line 4, and the receiving belt conveyor line 4 pushes the workpiece into the material frame 5 for collection;

[0146] Step 11: When all the workpieces in the workpiece fence 200 of the first material discharge space are sucked out, the photoelectric sensor module receives the light signal, and after analysis by the signal processing unit and the comparator module, a material-free signal is fed back to the control panel 1, and the control panel 1 emits a buzzer to remind the worker to refill the material, and at the same time, the stamping machine 3, the material receiving belt conveyor line 4, and the swing arm manipulator 6 stop working;

[0147] Step 12: When the worker finishes replenishing the materials, the motor 74 drives the workpiece picking and placing assembly 77 to move horizontally along the horizontal guide rail 71 to the second material discharge space through the gear 75 and the horizontal rack 72, and the lifting motor 761 drives the workpiece picking and placing assembly 77 to descend to the second material discharge space through the gear part and the gear 75 plate until the suction cup 773 of the workpiece picking and placing assembly 77 sucks the workpiece, and the lifting motor 761 drives the workpiece picking and placing assembly 77 to rise through the gear part and the gear 75 plate, so that the workpiece leaves the workpiece fence 200 and rises above the second material discharge space.

[0148] Step 13: Execute steps 7 to 10;

[0149] Step 14: When all the workpieces in the workpiece fence 200 of the second material discharge space are sucked out, the photoelectric sensor module receives the light signal, and after analysis by the signal processing unit and the comparator module, a material-free signal is fed back to the control panel 1, and the control panel 1 emits a buzzer to remind the worker to refill the material, and at the same time, the stamping machine 3, the material receiving belt conveyor line 4, and the swing arm manipulator 6 stop working;

[0150] Step 15: Execute step 3 and subsequent steps, and repeat the process over and over again.

[0151] In the workpiece clamping area 100, a first pressure detector, a second pressure detector, a third pressure detector and a fourth pressure detector are provided, which respectively monitor the pressure applied when the workpiece is clamped. Once the workpiece is clamped, these sensors will sense the pressure applied to the workpiece in real time and transmit it to the control panel 1. The control panel 1 will compare these pressure values ​​with the preset clamping pressure values. If the detected pressure value matches the preset value, the system will confirm that the workpiece has been clamped and the position is accurate.

[0152] On the contrary, if the detected pressure value does not meet the preset value, the system may sound an alarm or take corresponding adjustment measures, such as adjusting the clamping force or stopping subsequent operations, to ensure the accuracy of the workpiece position. In this way, the system can ensure that the workpiece can be accurately positioned and aligned after clamping, thereby improving the accuracy and stability of processing.

[0153] First, the core part of the suction cup assembly 621 is the suction cup 773, the center of the suction cup 773 is provided with an air port 6241, and the side wall of the connecting piece is provided with an air nozzle 6252 for connecting to the air pump, so that the air port 6241, the air nozzle 6252 and the air channel 6251 form a channel. When the air pump is working, the negative pressure generated by the suction is transmitted to the suction cup 773 through the air channel, generating suction force, thereby firmly adsorbing the workpiece on the suction cup 773.

[0154] A ring of magnets 6242 is also provided in the suction cup assembly 621 to assist the suction cup 773 in sucking the metal workpiece. When the suction cup 773 contacts the metal workpiece, the magnetic force of the magnet can increase the connection strength between the workpiece and the suction cup 773, ensuring a more stable and reliable suction effect.

[0155] In addition, the suction cup assembly 621 also includes a push rod 300, which can be movably placed in the air channel 6251. When the suction cup sucks the workpiece, the push rod 300 retracts into the air channel 6251 to maintain the contact between the suction cup 773 and the workpiece, ensuring the suction effect. When the suction cup 773 needs to push the workpiece out, the air pump exhaust will push the push rod 300 outward, pushing the workpiece away from the suction cup 773 smoothly, and at the same time, the magnetic force between the annular magnet 6242 and the metal workpiece disappears, thereby ensuring that the workpiece can be easily pushed out.

[0156] In summary, the suction cup assembly 621 achieves the suction and push-out of the workpiece through the suction force generated by the air pump, the magnetic force of the annular magnet 6242 and the movement of the push rod 300, thereby providing reliable support for the automated operation of the production line.

Claims

1. A production line for automatic workpiece handling and automatic stamping, comprising a control panel (1), a feeding machine (2) for automatically picking up workpieces, automatically placing workpieces and automatically aligning the positions of workpieces, a stamping machine (3) for stamping workpieces, a receiving belt conveyor line (4) for transporting workpieces, a material frame (5) for storing workpieces, and a swing arm manipulator (6) for transferring workpieces from the feeding machine (2) to the stamping machine (3), for transferring workpieces from the stamping machine (3) to another stamping machine (3) or for transferring workpieces from the stamping machine (3) to the receiving belt conveyor line (4), wherein the material frame (5) is located at the exit of the receiving belt conveyor line (4), characterized in that: The punching machine (3), the receiving belt conveyor line (4), the swing arm manipulator (6), the residual material detection device and the feeding machine (2) are electrically connected to the control panel (1) respectively; The feeding machine (2) comprises a frame (21), a material handling device (7), a residual material detection device using the reflection principle, and a workpiece position correction device (9) for automatically correcting the position of the workpiece, wherein the frame (21) is provided with a first material discharge area (211), a second material discharge area (212), and a workpiece correction area (213), wherein the first material discharge area (211) and the second material discharge area (212) are located on the left and right sides of the workpiece correction area (213); The surface of the first material discharging area (211) is lower than the surface of the workpiece aligning area (213), and a first material discharging space is formed between the surface of the first material discharging area (211) and the surface of the workpiece aligning area (213); The surface of the second material discharge area (212) is lower than the surface of the workpiece alignment area (213), and a second material discharge space is formed between the surface of the second material discharge area (212) and the surface of the workpiece alignment area (213); The material handling device (7) comprises a transverse guide rail (71), a transverse rack (72), a slide block (73), a motor (74), a gear (75), a lifting assembly (76) and a workpiece picking and placing assembly (77); the frame (21) is provided with a placing rack (22) above the workpiece alignment area (213); the transverse guide rail (71) and the transverse rack (72) are provided on the placing rack (22); The slider (73) is slidably arranged on the transverse guide rail (71), the motor (74) and the lifting assembly (76) are arranged on the slider (73), the gear (75) is arranged on the rotating shaft of the motor (74), the gear (75) is meshed with the transverse rack (72), the motor (74) drives the gear (75) to rotate, and the gear (75) slides along the length direction of the transverse rack (72), thereby pushing the slider (73) to move along the transverse guide rail (71), thereby driving the lifting assembly (76) to slide along the length direction of the transverse guide rail (71); The workpiece picking and placing assembly (77) is arranged on the lifting assembly (76), and the workpiece picking and placing assembly (77) follows the lifting assembly (76) to slide along the length direction of the transverse guide rail (71); The workpiece position alignment device (9) is arranged on the workpiece alignment area (213), and the residual material detection device is respectively arranged at the first material discharge space and the second material discharge space. The residual material detection device is used to monitor whether there are workpieces in the first material discharge space and the second material discharge space and feedback to the control panel (1). The control panel (1) controls the start and stop of the material handling device (7), the feeding machine (2), the stamping machine (3), the material receiving belt conveyor line (4) and the swing arm manipulator (6); The swing arm manipulator (6) is arranged between the feeding machine (2) and the punching machine (3), the swing arm manipulator (6) is arranged between the punching machine (3) and another punching machine (3), and the swing arm manipulator (6) is arranged between the punching machine (3) and the receiving belt conveyor line (4); The swing arm manipulator (6) comprises a body (61), a suction hand (62), a swing arm (63), a rotation module for driving the swing arm (63) to rotate, a telescopic module for driving the swing arm (63) to telescope, and a lifting module for driving the swing arm (63) to lift and lower, wherein the rotation module, the telescopic module, and the lifting module are all arranged on the body (61), the swing arm (63) is arranged on the body (61) and is respectively connected to the rotation module, the telescopic module, and the lifting module, and the suction hand (62) is arranged on the swing arm (63); The suction hand (62) comprises a suction cup assembly (621), a transverse connecting rod (622), a connecting plate (623) and a bolt; the connecting plate (623) is fixed to the swing arm (63); the transverse connecting rod (622) is provided with a position adjustment groove (6221) along its length direction; the bolt passes through a corresponding position of the position adjustment groove (6221) and locks the connecting plate (623), so that the transverse connecting rod (622) can adjust its position and be fixed to the connecting plate (623); The suction cup assembly (621) comprises a suction cup (773) and a connecting piece (625), one end of the connecting piece (625) is connected to the suction cup (773), and the other end of the connecting piece (625) is connected to the end of the transverse connecting rod (622), an air port (6241) is opened at the center of the suction cup (773), an air channel (6251) is opened at the connecting piece (625), and an air nozzle (6252) for connecting to an air pump is opened on the side wall of the connecting piece (625), and the air port (6241), the air nozzle (6252) and the air channel (6251) are in communication; The suction cup (773) is provided with a circle of annular magnets (6242); The suction cup assembly (621) further comprises a push rod (300), the diameter of the airway (6251) is larger than the diameter of the air port (6241), the diameter of the push rod (300) is smaller than the diameter of the air port (6241), the push rod (300) is movably disposed in the airway (6251), the tail of the push rod (300) is located in the airway (6251), the diameter of the tail of the push rod (300) is smaller than the diameter of the airway (6251) and larger than the diameter of the air port (6241), and the head of the push rod (300) is exposed outside the air port (6241).

2. The production line for automatic workpiece handling and automatic stamping according to claim 1 is characterized in that: The first material discharging area (211) is provided with a workpiece fence (200), and the workpieces are stacked in the workpiece fence (200); the second material discharging area (212) is provided with a workpiece fence (200), and the workpieces are stacked in the workpiece fence (200).

3. The production line for automatic workpiece handling and automatic stamping according to claim 2 is characterized in that: The workpiece fence (200) comprises a first railing plate (201) and a second railing plate (202), the first railing plate (201) and the second railing plate (202) are opposite to each other, the residual material detection device comprises a light source module, a photoelectric sensor module, a signal processing unit and a comparator module, the photoelectric sensor module is arranged on the first railing plate (201) and close to the bottom thereof, the light source module is arranged on the second railing plate (202) and close to the bottom thereof, the photoelectric sensor module and the light source module are opposite to each other, and the light source module, the photoelectric sensor module, the signal processing unit, the comparator module and the control panel (1) are electrically connected; The light generated by the light source module is emitted toward the photoelectric sensor module; If the workpiece exists, the workpiece blocks the light, and the photoelectric sensor cannot receive the light signal. After analysis by the signal processing unit and the comparator module, a material presence signal is fed back to the control panel (1). If the workpiece does not exist, the photoelectric sensor module receives the light signal. After analysis by the signal processing unit and the comparator module, a material absence signal is fed back to the control panel (1).

4. The production line for automatic workpiece handling and automatic stamping according to claim 1 is characterized in that: The lifting assembly (76) comprises a lifting motor (761), a lifting arm (762) and a connecting shell (763); the connecting shell (763) is provided with a passage (7631) for the lifting arm (762) to pass through; a tooth plate (7621) is provided on a side plate of the lifting arm (762); the lifting arm (762) is placed in the passage (7631); and the lower end of the lifting arm (762) is connected to a bottom plate (7622); The rotating shaft of the lifting motor (761) is provided with a gear member. The lifting motor (761) is arranged on the connecting housing (763). The gear member extends into the channel (7631) and meshes with the toothed plate (7621). The lifting motor (761) drives the lifting arm (762) to move up and down via the gear member and the toothed plate (7621).

5. The production line for automatic workpiece handling and automatic stamping according to claim 1 is characterized in that: The workpiece picking and placing assembly (77) comprises an extension plate (771), a swing arm portion (772) and a suction cup (773); one end of the extension plate (771) is connected to the bottom plate (7622), and the other end of the extension plate (771) extends outward; the extension plate (771) is provided with connection holes spaced apart along its length direction; one end of the swing arm portion (772) is fixed on the connection hole, and the other end of the swing arm portion (772) is connected to the suction cup (773).

6. The production line for automatic workpiece handling and automatic stamping according to claim 5 is characterized in that: The workpiece picking and placing assembly (77) further comprises an air pump, the suction cup (773) is provided with an air port, and the air pump and the air port are connected so that the suction cup (773) generates suction force and release force.

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