Automatic double-workbench feeding and discharging device of conical motor silicon steel sheet notching robot

Abstract

The invention relates to a conical motor silicon steel sheet notching robot double-workbench feeding and discharging automatic device which is mainly composed of a six-axis joint robot and two workbenches. The workbench is provided with a blank punching sheet jacking material frame, a stator punching sheet blanking jacking material frame, a rotor punching sheet material frame, a stator punching sheet blanking forking mechanism, a stator punching sheet blanking sorting sliding plate, a blank punching sheet jacking proximity switch, a stator punching sheet blanking proximity switch and a magnetic separator. When machining is finished manually, materials are placed on the blank punching sheet material frames of the workbench 1 and the workbench 2 and taken from the stator punching sheet material frame and the rotor punching sheet material frame, labor time is greatly shortened, labor intensity is greatly relieved, fingers of workers are prevented from being injured by a notching machine tool, damage of notching noise to hearing of the workers is reduced, and production efficiency is improved. And the labor environment of workers is greatly improved, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field of conical motors, and particularly relates to a double-workbench loading and unloading automatic device for a robot for punching slots in silicon steel sheets of conical motors. Background Art

[0002] A conical motor is a three-phase asynchronous motor with a built-in brake, where the stator has a conical hole and the rotor has a conical shaft. That is to say, both the inner cavity shape of the stator and the outer shape of the rotor are conical. This type of motor has the ability of power-off self-braking and is commonly used in hoisting equipment such as electric hoists and winches. China is the largest production base of conical rotor motors in the world, with an annual output of more than 6 million various conical rotor motors. Common power models include 04 / 0.5kW, 08 / 1.5kW, 2.2kW, 3.0 / 4.5kW, 7.5kW, and 13 / 18.5kW. Since the stator has a conical inner cavity and the rotor has a conical outer shape, the silicon steel sheets of the stator and rotor are stacked in a conical shape, and the slot holes of the silicon steel sheets on the stator and rotor are also stacked in a conical shape. The radial positions of the slot holes of each silicon steel sheet on the stator and rotor are also different. Taking a 7.5kW conical rotor motor as an example, both the stator and rotor are stacked by 240 silicon steel sheets, and the thickness of each is 0.5mm. The diameter of the silicon steel sheets of the stator is 245mm, and there are 36 slots evenly distributed on the circumference. The outer diameter of the largest slot hole at the radial position is 209.65mm, and the inner diameter is 171.95mm. The outer diameter of the smallest slot hole at the radial position is 176.2mm, and the inner diameter is 138.5mm. The rotor's silicon steel sheets have 30 slots evenly distributed on the circumference. The diameter of the silicon steel sheet is the large-end diameter of the slot hole at the radial position. The outer diameter of the largest slot hole at the radial position is 172.05mm, and the inner diameter is 143mm. The outer diameter of the smallest slot hole at the radial position is 138.6mm, and the small-end diameter is 109.25mm.

[0003] Currently, the punching of silicon steel sheets is carried out by manually taking one by one from the blank material rack and placing them on a numerical control punching machine for processing. The numerical control punching machine has a very high processing speed. After processing the stator slots and rotor slots, the worker takes them out manually and places them separately on the stator material rack and rotor material rack. Taking a 7.5kW conical motor as an example, the worker needs to quickly and continuously pick up and place the silicon steel sheets 480 times, with extremely high labor intensity. In addition, the punching force of the numerical control punching machine is large, which is very easy to injure the worker's fingers. Coupled with the high punching noise, it is also easy to damage the worker's hearing. The working environment of the worker is extremely poor, and the processing efficiency is very low. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a double-workbench loading and unloading automatic device for a robot for punching slots in silicon steel sheets of conical motors.

[0005] To achieve the above object, the following technical solutions are adopted in the present invention: The automatic device for loading and unloading of a robot with double workbenches mainly consists of 2 workbenches and 1 six-axis articulated robot. On workbench 1, there are a blank punching sheet lifting rack 1, a stator punching sheet blanking lifting rack 1, a rotor punching sheet rack 1, a stator punching sheet blanking fork mechanism 1, a stator punching sheet blanking sheet handling slide 1, a blank punching sheet lifting proximity switch 1, a stator punching sheet blanking proximity switch 1, and a magnetic sheet separator 1. On workbench 2, there are a blank punching sheet lifting rack 2, a stator punching sheet blanking lifting rack 2, a rotor rack 2, a stator punching sheet blanking fork mechanism 2, a stator punching sheet blanking sheet handling slide 2, a blank punching sheet lifting proximity switch 2, a stator punching sheet blanking proximity switch 2, and a magnetic sheet separator 2.

[0006] The loading and unloading of the robot with double workbenches includes the following process;

[0007] S1. Before the robot loads materials, manually fill the blank punching sheet lifting racks 1 on workbench 1 and workbench 2 with silicon steel sheets.

[0008] S2. When the robot loads materials, first take out the silicon steel sheets one by one from the blank punching sheet lifting rack 1 on workbench 1 and place them on the numerical control punching and grooving machine for processing.

[0009] S3. After the punching sheets are processed with stator slots and rotor slots, the robot then takes them out and places them separately on the stator punching sheet lifting rack 1 and the rotor punching sheet rack 1 on workbench 1.

[0010] S4. When the last silicon steel sheet on the blank punching sheet lifting rack 1 on workbench 1 is punched and placed on the stator punching sheet blanking lifting rack 1 and the rotor punching sheet rack 1, the robot program automatically jumps to the punching sheet loading and unloading program for workbench 2.

[0011] S5. The robot then takes out the silicon steel sheets one by one from the blank punching sheet lifting rack 2 on workbench 2 and places them on the numerical control punching and grooving machine for processing.

[0012] S6. After the punching sheets are processed with stator slots and rotor slots, the robot then takes them out and places them separately on the stator punching sheet blanking lifting rack 2 and the rotor punching sheet rack 2.

[0013] S7. Manually can take out the silicon steel sheets of the full stator on the stator punching sheet blanking lifting rack 1 on workbench 1 and the silicon steel sheets of the full rotor on the rotor punching sheet rack 1.

[0014] S8. Refill the blank punching sheet lifting rack 1 on workbench 1 with silicon steel sheets.

[0015] S9. When the last silicon steel sheet on the blank punching sheet lifting rack 2 on workbench 2 is punched and placed on the stator punching sheet blanking lifting rack 2 and the rotor punching sheet rack 2, the robot program automatically switches back to the punching sheet loading and unloading program for workbench 1.

[0016] S10. The robot then takes out silicon steel sheets one by one from the blank punching sheet lifting rack 1 of the workbench 1 and places them on the CNC punching slot machine for processing;

[0017] S11. After the punching sheets are processed to form stator slots and rotor slots, the robot then takes them out and places them separately on the stator punching sheet blanking lifting rack 1 and the rotor punching sheet rack 1;

[0018] S12. Workers can take out the silicon steel sheets of the stator filled on the stator punching sheet blanking lifting rack 2 of the workbench 2 and the silicon steel sheets of the rotor filled on the rotor punching sheet rack 2;

[0019] S13. Re-fill the blank punching sheet lifting rack 2 of the workbench 2 with silicon steel sheets.

[0020] Repeat this process to cycle the loading and unloading.

[0021] Furthermore, positioning columns are installed on the blank punching sheet lifting rack 1 of the workbench 1 in the process S1. A lifting mechanism is installed on the material table below the blank punching sheet lifting rack 1. There is a blank punching sheet lifting proximity switch 1 installed on the material table on the side of the position of the topmost silicon steel sheet of the blank punching sheet lifting rack 1. When the robot takes out the silicon steel sheet, once there is no signal from the proximity switch, the lifting mechanism immediately rises to lift the blank punching sheet to the corresponding position of the blank punching sheet lifting proximity switch 1, facilitating the robot to grab at a fixed point. On the other side of the position of the topmost silicon steel sheet of the blank punching sheet lifting rack 1, there is a magnetic sheet separator 1 installed on the material table, which is used to effectively separate the topmost layer of silicon steel sheets, facilitating the robot to grab;

[0022] Furthermore, a stator punching sheet blanking fork mechanism 1 and a stator punching sheet blanking sheet sliding plate 1 are installed on the stator punching sheet blanking lifting rack 1 of the workbench 1 in the process S3; positioning columns are installed on the rotor punching sheet rack 1; a stator punching sheet blanking fork mechanism 2 and a stator punching sheet blanking sheet sliding plate 2 are installed on the stator punching sheet blanking lifting rack 2 of the workbench 2 in the robot loading and unloading process S6; positioning columns are installed on the rotor punching sheet rack 2.

[0023] Further, a stator punching blank lifting and feeding rack 1 is installed on the workbench 1 in the robot double-workbench loading and unloading process S3. A lifting mechanism is installed on the workbench. There is a stator punching blank falling approaching switch 1 installed on the material table on the side of the position of the topmost silicon steel sheet of the stator punching blank lifting and feeding rack 1. When the robot places the silicon steel sheet, once the approaching switch has a signal, the lifting mechanism immediately descends to lower the stator punching blank to the corresponding position of the stator punching blank falling approaching switch 1, facilitating the robot to place it at a fixed point. At the same time, the stator punching blank falling fork mechanisms 1 on both sides are used to separate the stator punching blank and the rotor punching blank on the robot suction cup, so that the rotor punching blank falls separately into the stator punching blank handling slide 1. Then the robot places the rotor punching blank on the positioning posts of the rotor punching blank rack 1. A stator punching blank lifting and feeding rack 2 is installed on the workbench 2 in the robot loading and unloading process S6. A lifting mechanism is installed on the workbench. There is a stator punching blank falling approaching switch 2 installed on the material table on the side of the position of the topmost silicon steel sheet of the stator punching blank lifting and feeding rack 2. When the robot places the silicon steel sheet, once the stator punching blank falling approaching switch 2 has a signal, the lifting mechanism immediately descends to lower the stator punching blank to the corresponding position of the stator punching blank falling approaching switch 2, facilitating the robot to place it at a fixed point. At the same time, the stator punching blank falling fork mechanisms 2 on both sides are used to separate the stator punching blank and the rotor punching blank on the robot suction cup, so that the rotor punching blank falls separately into the stator punching blank handling slide 2. Then the robot places the rotor punching blank on the rotor rack positioning posts.

[0024] With the above technical solutions of the present invention, there is no need for manual operation to take out one by one from the blank material rack and place it on the numerical control punching machine for processing. After processing the stator slots and rotor slots, manual operation is required to take them out and place them separately on the stator material rack and the rotor material rack. Workers only need to place materials on the blank punching blank racks of the workbench 1 and the workbench 2 and take materials from the stator punching blank rack and the rotor punching blank rack when the processing is completed, which greatly reduces the labor time, greatly reduces the labor intensity, avoids the punching machine from injuring the workers' fingers, reduces the damage to the workers' hearing caused by the punching noise, greatly improves the working environment of the workers, and improves the production efficiency. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the silicon steel sheet of the stator of a 7.5kW conical rotor motor;

[0026] Figure 2 It is a schematic diagram of the silicon steel sheet of the rotor of a 7.5kW conical rotor motor;

[0027] Figure 3 It is a schematic diagram of an automatic device for loading and unloading a double-workbench of a silicon steel sheet punching robot for a conical motor. Detailed Embodiments

[0028] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0029] Taking a 7.5kW conical motor as an example, both the stator and the rotor are stacked by 240 silicon steel sheets, with a thickness of 0.5mm each. The diameter of the silicon steel sheets of the stator is 245mm, and 36 slots are evenly distributed in the circumference. The outer end diameter of the largest slot hole in the radial position is 209.65mm, and the inner end diameter is 171.95mm. The outer end diameter of the smallest slot hole in the radial position is 176.2mm, and the inner end diameter is 138.5mm; 30 slots are evenly distributed in the circumference of the silicon steel sheets of the rotor. The diameter of the silicon steel sheets is the large end diameter of the slot hole in the radial position. The outer end diameter of the largest slot hole in the radial position is 172.05mm, and the inner end diameter is 143mm. The outer end diameter of the smallest slot hole in the radial position is 138.6mm, and the small end diameter is 109.25mm.

[0030] As Figure 3 shown, an automatic device for loading and unloading double workbenches of a conical motor silicon steel sheet punching robot mainly consists of 2 workbenches and 1 six-axis articulated robot. Proximity switches, stator punching sheet blanking and forking mechanisms, and magnetic sheet separators are installed on each workbench, as well as a blank punching sheet lifting rack, a stator punching sheet lifting rack, and a rotor punching sheet rack. In the figure, 1 is the electrical control cabinet, 2 is the six-axis articulated robot, 3 is the proximity switch 1 of the blank punching sheet lifting rack, 4 is the proximity switch 1 of the stator punching sheet lifting rack, 5 is the stator punching sheet blanking and lifting rack 1, 6 is the stator punching sheet blanking and forking mechanism 1, 7 is the stator punching sheet blanking and sheet handling slide 1, 8 is the rotor punching sheet rack, 9 is the blank punching sheet lifting rack 1, 10 is the magnetic sheet separator 1, 11 is the robot teach pendant, 12 is the workbench 1, 13 is the control button box, 14 is the proximity switch 2 of the stator punching sheet blanking, 15 is the stator punching sheet blanking and lifting rack 2, 16 is the stator punching sheet blanking and sheet handling slide 2, 17 is the stator punching sheet blanking and forking mechanism 2, 18 is the rotor punching sheet rack 2, 19 is the workbench 2, 20 is the magnetic sheet separator 2, 21 is the blank punching sheet lifting rack 2, 22 is the proximity switch 2 of the blank punching sheet lifting, and 23 is the numerical control punching machine tool.

[0031] Figure 3 The middle workbench 1 includes: the proximity switch 1 of the blank punching sheet lifting rack, the proximity switch 1 of the stator punching sheet lifting rack, the stator punching sheet blanking and lifting rack 1, the stator punching sheet blanking and forking mechanism 1, the stator punching sheet blanking and sheet handling slide 1, the rotor punching sheet rack, the blank punching sheet lifting rack 1, the magnetic sheet separator 1, the robot teach pendant, and the control button box; the workbench 2 includes: the proximity switch 2 of the stator punching sheet blanking, the stator punching sheet blanking and lifting rack 2, the stator punching sheet blanking and sheet handling slide 2, the stator punching sheet blanking and forking mechanism 2, the rotor punching sheet rack 2, the magnetic sheet separator 2, the blank punching sheet lifting rack 2, and the proximity switch 2 of the blank punching sheet lifting.

[0032] Taking the robot double-workbench loading and unloading automatic device of the 7.5kW conical rotor motor silicon steel sheet numerical control punching machine as an example, the specific numerical control punching machine selects a numerical control high-speed punching machine with a nominal pressure of 5kN. Its main feature is a fast punching speed, and it can punch up to 1000 slots per minute at the fastest. The industrial robot selects a desktop robot with an arm length of 900mm and a rated load of 7kg. Its main feature is a fast running speed, and the maximum running speed can reach 2000mm per second. Each platform uses a frame welded by carbon steel square tubes. An iron plate is installed above the frame as a material table. Proximity switches and magnetic sheet separators are installed on the workbench. Positioning columns are installed on the blank punching sheet lifting rack 1 of workbench 1. A lifting mechanism is installed on the workbench under the blank punching sheet lifting rack 1, and the lifting mechanism uses a ball screw. The stator punching sheet blanking and lifting rack 1 is installed with a stator punching sheet blanking and sheet sorting slide 1 and a stator punching sheet blanking and fork mechanism 1. The rotor punching sheet rack 1 is installed with positioning columns. Positioning columns are installed on the blank punching sheet lifting rack 2 of workbench 2. The stator punching sheet blanking and lifting rack 2 is installed with a stator punching sheet blanking and sheet sorting slide 1 and a stator punching sheet blanking and fork mechanism 2. The rotor punching sheet rack 2 is installed with positioning columns.

[0033] The robot loading and unloading includes the following process;

[0034] 1. Before the six-axis articulated robot loads materials, manually fill the blank punching sheet lifting rack 1 of workbench 1 and the blank punching sheet lifting rack 2 of workbench 2 with silicon steel sheets of the 7.5kW conical rotor motor.

[0035] 2. When the six-axis articulated robot loads materials, first take out the silicon steel sheets one by one from the blank punching sheet lifting rack 1 of workbench 1 and place them on the numerical control high-speed punching machine for processing.

[0036] 3. After processing the stator slots and rotor slots of the 7.5kW conical rotor motor silicon steel sheets, the robot then takes them out and places them separately on the stator punching sheet blanking and lifting rack 1 and the rotor punching sheet rack 1 of workbench 1.

[0037] 4. When the last silicon steel sheet on the blank punching sheet lifting rack 1 of workbench 1 is punched and placed on the stator punching sheet lifting rack 1 and the rotor punching sheet rack 1, the robot program automatically jumps to the punching sheet loading and unloading program of workbench 2.

[0038] 5. The six-axis articulated robot then takes out the silicon steel sheets one by one from the blank punching sheet lifting rack 2 of workbench 2 and places them on the numerical control high-speed punching machine for processing.

[0039] 6. After processing the stator slots and rotor slots of the 7.5kW conical rotor motor silicon steel sheets, the six-axis articulated robot then takes them out and places them separately on the stator punching sheet blanking and lifting rack 2 and the rotor punching sheet rack 2 of workbench 2.

[0040] 7. Manually, the silicon steel sheets of the stator placed full on the stator punching sheet lifting rack 1 of the workbench 1 and the silicon steel sheets of the rotor placed full on the rotor punching sheet rack 1 can be taken out;

[0041] 8. The blank punching sheet lifting rack 1 of the workbench 1 is refilled with silicon steel sheets for the 7.5kW conical rotor motor;

[0042] 9. When the last silicon steel sheet on the blank punching sheet lifting rack 2 of the workbench 2 is placed on the stator punching sheet lifting rack 2 and the rotor punching sheet rack 2 after punching the slot, the robot program jumps back to the punching sheet loading and unloading program of the workbench 1;

[0043] 10. The six-axis articulated robot takes out the silicon steel sheets one by one from the blank punching sheet lifting rack 1 of the workbench 1 and places them on the CNC high-speed punching slot machine for processing;

[0044] 11. After processing the stator slots and rotor slots of the silicon steel sheets for the 7.5kW conical rotor motor, the six-axis articulated robot takes them out and places them separately on the stator punching sheet lifting rack 1 and the rotor punching sheet rack 1;

[0045] 12. Manually, the silicon steel sheets of the stator placed full on the stator punching sheet lifting rack 2 of the workbench 2 and the silicon steel sheets of the rotor placed full on the rotor punching sheet rack 2 can be taken out;

[0046] 13. The blank punching sheet lifting rack 2 of the workbench 2 is refilled with silicon steel sheets for the 7.5kW conical rotor motor.

[0047] Repeat this process to perform cyclic loading and unloading.

[0048] The present invention is not limited to the above best implementation mode. Anyone can obtain other various forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as it has a technical solution identical or similar to the present application, it falls within the protection scope of the present invention.

Claims

1. A conical motor silicon steel sheet slot punching robot double worktable loading and unloading automatic device, characterized by: The automatic device for loading and unloading of robots is mainly composed of a 6-axis joint robot and 2 workbenches. Workbench 1 has a blank punching lifting rack 1, a stator punching blanking lifting rack 1, a rotor punching rack 1, a stator punching blanking fork mechanism 1, a stator punching falling processing sheet slide 1, a blank punching lifting proximity switch 1, a stator punching blanking proximity switch 1, and a magnetic spreader 1. Workbench 2 has a blank punching lifting rack 2, a stator punching blanking lifting rack 2, a rotor rack 2, a stator punching blanking fork mechanism 2, a stator punching falling processing sheet slide 2, a blank punching lifting proximity switch 2, a stator punching blanking proximity switch 2, and a magnetic spreader 2.

2. According to claim 1, a conical motor silicon steel sheet slot punching robot double worktable loading and unloading automatic device is characterized by: Robot loading and unloading includes the following processes: S1. Before the robot loads the materials, the blank punching lifting rack 1 and the blank punching lifting rack 2 on the workbench 1 and workbench 2 are manually filled with silicon steel sheets; S2, when the robot loads the material, firstly, the silicon steel sheets are taken out one by one from the blank punching sheet lifting rack 1 on the workbench 1 and placed on the CNC slot punching machine for processing; S3, after the stator slots and rotor slots are punched out, the robot takes out the stator punching sheet lifting rack 1 and the rotor punching sheet rack 1 which are separately placed on the platform 1; S4, when the last silicon steel sheet of the blank punching lifting rack 1 of the workbench 1 is notched and placed on the stator punching lifting rack 1 and the rotor rack 1, the robot program automatically jumps to the punching loading and unloading program of the workbench 2; S5, the robot then takes out the silicon steel sheets one by one from the blank punching sheet lifting rack 2 on the workbench 2 and puts them into the CNC punching machine for processing; S6, after the stator slots and rotor slots are punched out, the robot takes out the stator punching blanking lifting rack 2 and the rotor rack 2 which are separately placed on the workbench 2; S7, manually taking out the stator silicon steel sheets on the stator punching blanking lifting rack 1 and the rotor silicon steel sheets on the rotor punching rack 1; S8, refilling the blank punching lifting rack 1 on the workbench 1 with silicon steel sheets; S9, when the last silicon steel sheet of the blank punching lifting rack 2 of the workbench 2 is notched and placed on the stator punching lifting rack 2 and the rotor rack 2, the robot program automatically switches back to the punching loading and unloading program of the platform 1; S10, the robot then takes out silicon steel sheets one by one from the blank punching sheet lifting rack 1 on the workbench 1 and places them on the CNC punching machine for processing; S11, after the stator slots and rotor slots are punched out, the robot takes out the stator punching sheet blanking lifting rack 1 and the rotor punching sheet rack 1 which are separately placed on the workbench 1; S12, manually taking out the stator silicon steel sheets on the stator punching blanking lifting rack 2 and the rotor silicon steel sheets on the rotor punching rack 2; S13, the blank punching sheet lifting rack 2 on the workbench 2 is filled with silicon steel sheets again. This process is repeated to cycle loading and unloading.

3. The double-worktable automatic loading and unloading device of a conical motor silicon steel sheet notching robot according to claim 2 is characterized in that: A positioning column is installed on the blank punching sheet lifting rack 1 of the workbench 1 in the robot loading and unloading process S1. A lifting mechanism is installed on the workbench below the blank punching sheet lifting rack 1, and a blank punching sheet lifting proximity switch 1 installed on the workbench 1 is installed on the side of the top silicon steel sheet position of the blank punching sheet lifting rack 1. When the robot takes out the silicon steel sheet, once there is no signal from the proximity switch, the lifting mechanism immediately rises to lift the blank punching sheet to the corresponding position of the proximity switch, which is convenient for the robot to grab at a fixed point. The other side of the position of the top silicon steel sheet of the blank punching lifting rack 1 has a magnetic spreader 1 installed on the material table 1, which is used to effectively separate the silicon steel sheet on the top layer, so that the robot can grab it; the blank punching lifting rack 2 of the workbench 2 in the robot loading and unloading process S1 is installed with a positioning column. A lifting mechanism is installed on the workbench below the blank punching lifting rack 2, and a blank punching lifting proximity switch 2 installed on the workbench 2 is installed on the side of the top silicon steel sheet position of the blank punching lifting rack 2. When the robot takes out the silicon steel sheet, once there is no signal from the proximity switch, the lifting mechanism immediately rises to lift the blank punching to the corresponding position of the proximity switch, so that the robot can grab it at a fixed point. The other side of the position of the top silicon steel sheet of the blank punching lifting rack 2 has a magnetic spreader 2 installed on the material table 2, which is used to effectively separate the silicon steel sheet on the top layer, so that the robot can grab it.

4. The double-worktable automatic loading and unloading device of a conical motor silicon steel sheet notching robot according to claim 2 is characterized in that: The stator sheet blanking lifting rack 1 of the workbench 1 in the robot loading and unloading process S3 is equipped with a stator sheet blanking fork mechanism 1 and a stator sheet dropping and processing sheet slide 1; the rotor sheet rack 1 is equipped with a positioning column; the stator sheet blanking lifting rack 2 of the workbench 2 in the robot loading and unloading process S6 is equipped with a stator sheet blanking fork mechanism 2 and a stator sheet dropping and processing sheet slide 2; the rotor sheet rack 2 is equipped with a positioning column.

5. The double-worktable automatic loading and unloading device of a conical motor silicon steel sheet notching robot according to claim 2 is characterized in that: The workbench 1 in the robot loading and unloading process S3 is equipped with a stator punch blanking lifting rack 1, and a lifting mechanism is installed on the workbench 1. The side of the uppermost silicon steel sheet position of the stator punch lifting rack 1 is equipped with a stator punch blanking proximity switch 1 installed on the workbench 1. When the robot puts in the silicon steel sheet, once the stator punch blanking proximity switch 1 has a signal, the lifting mechanism immediately descends to lower the stator punch to the corresponding position of the proximity switch, which is convenient for the robot to put it down at a fixed point. At the same time, the stator punch blanking fork mechanism 1 on both sides is used to separate the stator punch on the robot suction cup and the rotor punch, so that the rotor punch falls alone into the stator punch falling processing slide 1. Then the robot places the rotor punch on the positioning column of the rotor punch rack 1. The workbench 2 in the robot loading and unloading process S6 is equipped with a stator punch blanking lifting rack 2, and a lifting mechanism is installed on the workbench 2. The side of the uppermost silicon steel sheet position of the stator punch blanking lifting rack 2 is equipped with a stator punch blanking proximity switch 2 installed on the material table. When the robot puts in the silicon steel sheet, once the stator punch blanking proximity switch 2 has a signal, the lifting mechanism immediately descends to lower the stator punch to the corresponding position of the proximity switch, which is convenient for the robot to put down at a fixed point. At the same time, the stator punch blanking fork mechanism 2 on both sides is used to separate the stator punch on the robot suction cup and the rotor punch, so that the rotor punch falls alone into the stator punch falling processing slide 2. Then the robot places the rotor punch on the positioning column of the rotor punch rack 2.

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