A double-station core cutting machine

Abstract

The application provides a double-station core cutting machine, which comprises a rack, a machine cover on the rack, a feeding assembly and a cutting assembly arranged on the rack, and a sheet selecting mechanism and a sheet changing mechanism arranged on one side of the machine cover; the sheet selecting mechanism comprises a sheet selecting seat arranged on one side of the machine cover, four sets of deflection frames arranged on the sheet selecting seat, different specifications of abrasive sheet stored in the four sets of deflection frames, and an RFID identification tag arranged on each of the four sets of deflection frames; the sheet changing mechanism comprises a sheet changing seat arranged on one side of the sheet selecting seat, a pushing assembly, a butt joint assembly and a suction assembly arranged on the sheet changing seat; the application realizes the full-process intelligent operation of the abrasive sheet from the wear detection, the specification selection to the automatic replacement through the real-time sensing of the abrasive sheet wear state by the annular pressure sensor and the thermoelectric module, the accurate retrieval of the spare parts by the four-station sheet selecting mechanism with the RFID identification, and the bionic method of the double-suction disc grabbing and the electromagnetic sleeve screwing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of iron core processing, and particularly relates to a double-station iron core cutting machine. BACKGROUND

[0002] With the development of modern mechanical processing industry, the mechanization degree of cutting of transformer, sensor, mutual inductor and inductor iron cores is higher and higher. The transformer, sensor, mutual inductor and inductor iron cores are generally made of silicon steel sheets. The silicon steel is a kind of steel containing silicon. The reason why the silicon steel is used to make the iron cores of the transformer, sensor, mutual inductor and inductor is that the silicon steel itself is a kind of magnetic material with strong magnetic permeability. In the energized coil, the silicon steel can generate a large magnetic induction intensity, so as to reduce the volume of the transformer.

[0003] Chinese patent CN202121756263.7 discloses a cutting machine for iron core production and processing. The cutting machine comprises a base, a movable clamping block movably arranged in the base, a fixed clamping block fixedly arranged on the surface of the base and located on one side of the movable clamping block, a collecting plate movably arranged in the base, a first electric push rod fixedly installed on the surface of the base, a cutting device body arranged on one side of the first electric push rod, a motor fixedly installed on the surface of the base, and a screw rod fixedly connected to the output shaft of the motor. The screw nut base moves with the rotation of the screw rod, so that the screw nut base can drive the movable clamping block to move through the connecting plate, the movable clamping block can push the iron core with the assistance of the fixed clamping block, and the cutting device body can cut the iron core, thereby achieving automatic cutting and reducing the operation time of the workers.

[0004] However, the technical solution has certain deficiencies in use. The cutting tools (such as grinding wheel sheets) in the cutting device are inevitably worn and consumed in use. Like traditional devices, manual replacement is required when the cutting tools are worn and consumed. However, manual replacement has safety hazards and the operation process is complicated. The replacement process involves multiple steps, including power-off, disassembly of old sheets, cleaning, installation of new sheets and checking of firmness, and requires the operator to have certain skills and patience, which affects the work efficiency. Manual replacement of the grinding wheel sheets requires shutdown operation, which directly leads to production interruption and reduces work efficiency in the case of frequent replacement. SUMMARY

[0005] The purpose of the present application is to solve the problems of low efficiency and safety hazards of manual replacement by providing a double-station iron core cutting machine which realizes automatic replacement of cutting grinding wheel sheets through the cooperation of the sheet selection mechanism and the sheet replacement mechanism.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0007] A dual-station iron core cutting machine includes a frame and a cover on the frame. The frame is equipped with a feeding assembly and a cutting assembly. One side of the cover is equipped with a selection mechanism and a changing mechanism. The selection mechanism includes a selection seat on one side of the cover, with two sets of supports fixedly connected to it. A deflection box is movably connected to the upper end of each set of supports. Four deflection frames are fixedly connected to the outer side of each deflection box. Different sizes of grinding wheels are stored within each of the four deflection frames, and each set of deflection frames is equipped with an RFID tag. A guide seat is located on one side of the selection seat, and an RFID reader / writer is installed at the feed end of the guide seat. The changing mechanism includes a changing seat on one side of the selection seat, with a side plate fixedly connected to one side. A feed groove is formed on the side plate, and a guide cover is fixedly connected to one side of the side plate. A discharge groove is formed on the guide cover. The changing mechanism also includes a pushing assembly, a docking assembly, and an adsorption assembly on the changing seat.

[0008] The frame is equipped with a rotary table and a flow guide seat. A waste liquid recovery unit is located under the flow guide seat. An electrical control box is located under the rotary table. An infrared through-beam safety light curtain sensor is installed at the feed inlet of the machine cover. A three-color alarm light is installed on the machine cover. A PLC touch screen is installed on the side of the machine cover. An emergency stop button group is located below the PLC touch screen.

[0009] The feeding assembly includes: a rotating seat movably connected to the rotating platform; a rotary motor located below the rotating seat; a clamping seat fixedly connected to the rotating seat; a positioning seat located on the clamping seat; a clamp located outside the positioning seat; and a cutting fluid nozzle located on the positioning seat.

[0010] The cutting assembly includes: a cutting stand mounted on the flow guide seat; a longitudinal telescopic cover located below the cutting stand; a displacement module located inside the longitudinal telescopic cover; a base plate mounted on the longitudinal telescopic cover; a vertical telescopic cover mounted on the cutting stand; a lifting module located inside the vertical telescopic cover; a motor housing mounted on the vertical telescopic cover; a motor base fixedly connected inside the vertical telescopic cover; a protective telescopic cover located outside the motor housing; and an electric hinge located outside the protective telescopic cover.

[0011] The cutting assembly further includes: a variable frequency motor mounted on a motor base; an output end located at one end of the variable frequency motor; a fastener mounted on the output end; a stainless steel bolt threaded onto the output end; a grinding wheel a clamped between the output end and the fastener; an annular pressure sensor embedded inside the fastener; an internal thread formed on the inner wall of the annular pressure sensor; and four thermoelectric modules embedded inside the fastener.

[0012] The film selection mechanism includes a film selection motor located on one side of the bracket. The deflection box contains four sets of electric push rods, which are movably connected to the through holes on the deflection frame. The four sets of deflection frames are fixedly connected to the deflection box via right-angle ribs.

[0013] The pushing component includes: a feeding frame disposed within the changing plate holder; a discharge end disposed at one end of the feeding frame and connected to the feeding trough; a feeding opening opened on one side of the feeding frame; a guide rail disposed below the feeding frame; a feeding motor disposed below the guide rail; and a push plate movably connected to the guide rail.

[0014] The docking assembly includes: a docking seat located at the lower end of the side plate; an output plate movably connected to the docking seat; a docking motor mounted below the docking seat; a lead screw movably connected to the docking seat; a pulley located at one end of the output shaft of the docking motor and the lead screw; a belt located on the pulley; a nut located on the output plate; an electromagnetic sleeve fixedly connected to the side plate; a hexagonal hole located on one side of the electromagnetic sleeve; an electromagnetic base located at the other end of the lead screw; and a connecting rod fixedly connected to the electromagnetic base.

[0015] The adsorption assembly includes: a hollow grinding wheel frame, which is fixedly connected to the outside of the output plate; a connector a, which is disposed on the hollow grinding wheel frame; four sets of grinding wheel suction cups, which are disposed on the hollow grinding wheel frame; an annular tube a, which is disposed on the outside of the four sets of grinding wheel suction cups; an air inlet pipe a, which is connected through to one side of the annular tube a; and an air outlet pipe a, which is connected through to the other side of the annular tube a.

[0016] The adsorption assembly further includes: a fastening hollow frame, which is disposed inside the grinding wheel hollow frame; a connector b, which is disposed on the fastening hollow frame; four sets of fastening suction cups, which are disposed on the fastening hollow frame; an annular tube b, which is disposed outside the four sets of fastening suction cups; an air inlet pipe b, which is connected through to one side of the annular tube b; an air outlet pipe b, which is connected through to the other side of the annular tube b; a circulating air pump, which is installed inside the output plate; an air outlet end, which is disposed on the circulating air pump; an air inlet end, which is disposed on the circulating air pump; a solenoid valve, which is disposed on the air inlet pipe a and the air outlet pipe a, and on the air inlet pipe b and the air outlet pipe b; and a grinding wheel b, which is disposed outside the output plate.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) This invention integrates an annular pressure sensor and a thermoelectric module inside the grinding wheel fastener. By monitoring the changes in axial force and bending moment of the grinding wheel, it can determine its wear and breakage status in real time. It uses the heat generated by cutting to generate electricity (Seebeck effect) to power the sensor, thus achieving energy self-sufficiency and real-time status monitoring. When the system detects that the grinding wheel has reached the replacement threshold, it automatically triggers the replacement process without manual intervention, fundamentally avoiding quality defects and equipment risks caused by grinding wheel problems.

[0019] (2) The present invention provides material support for automatic wheel changing through a modular and intelligent grinding wheel storage and selection system. The design of deflection box + four deflection frames can store four different specifications of grinding wheels at the same time to meet the needs of multi-variety production. Each deflection frame is equipped with an RFID identification tag, which works in conjunction with the RFID reader of the guide seat to realize the accurate identification and call of grinding wheel specifications. The system can automatically select the correct grinding wheel according to the preset program or the workpiece size information from the safety light curtain.

[0020] (3) The present invention adopts an integrated "grabbing-disassembly-installation" grinding wheel changing mechanism, which is non-destructive: The grinding wheel changing mechanism (pushing, docking, and adsorption components) is ingeniously designed, mimicking the complex operation of human hands. It uses independently controlled grinding wheel suction cups and fastener suction cups, and uses vacuum negative pressure for gripping, avoiding mechanical damage to precision threads and grinding wheel surfaces; During disassembly: The adsorption components grip the old grinding wheel and fasteners at the same time, and the electromagnetic sleeve adsorbs and loosens the bolts, completing the disassembly in one go; During installation: The adsorption components grip the new grinding wheel and align the fasteners with the spindle, and the electromagnetic sleeve rotates to tighten the bolts, completing the installation in one go; High-precision docking: The visual sensor and laser positioning ensure the precise docking between the grinding wheel changing mechanism and the spindle, ensuring the concentricity and reliability of the installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the side structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the casing of the present invention;

[0024] Figure 4 This is a top view of the internal structure of the present invention;

[0025] Figure 5 This is a partial structural diagram of the present invention;

[0026] Figure 6 This is a schematic diagram of the feeding component structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the overall disassembled structure of the cutting component of the present invention;

[0028] Figure 8 This is a partial structural diagram of the cutting component of the present invention;

[0029] Figure 9 This is a schematic diagram of the fastener structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the overall structure of the wafer selection and changing mechanism of the present invention;

[0031] Figure 11 This is a schematic diagram of the back structure of the wafer selection and changing mechanism of the present invention;

[0032] Figure 12 This is a schematic diagram of the chip selection mechanism of the present invention;

[0033] Figure 13 This is a schematic diagram of the overall structure of the plate changing mechanism of the present invention;

[0034] Figure 14 This is a schematic diagram of the disassembled structure of the plate changing mechanism of the present invention;

[0035] Figure 15 This is a schematic diagram of the push component structure of the present invention;

[0036] Figure 16 This is a schematic diagram of the overall structure of the docking component of the present invention;

[0037] Figure 17 This is a schematic diagram showing the detailed structure of the docking component of the present invention;

[0038] Figure 18 This is a schematic diagram of the front structure of the adsorption component of the present invention;

[0039] Figure 19 This is a schematic diagram of the back structure of the adsorption component of the present invention.

[0040] The reference numerals in the accompanying drawings of this application are as follows: 1. Frame; 101. Machine cover; 102. Rotary table; 103. Flow guide seat; 104. Waste liquid recovery unit; 105. Electrical control box; 106. Infrared through-beam safety light curtain sensor; 107. Three-color alarm light; 108. PLC touch screen; 109. Emergency stop button group; 11. Feeding assembly; 111. Rotary seat; 1111. Rotary motor; 112. Clamping seat; 113. Positioning seat; 114. Fixture; 115. Cutting fluid nozzle; 12. Cutting assembly; 121. Cutting stand; 122. Longitudinal telescopic cover; 1221. Positioning... 123. Moving module; 124. Base plate; 125. Vertical telescopic cover; 126. Lifting module; 127. Motor box; 128. Motor base; 129. Protective telescopic cover; 120. Electric hinge; 121. Variable frequency motor; 122. Output end; 126. Fastener; 1263. Stainless steel bolt; 1264. Grinding wheel a; 1265. Ring pressure sensor; 1266. Internal thread; 1267. Thermoelectric module; 2. Selector mechanism; 201. Selector seat; 202. Bracket; 203. Deflection box; 204. Deflection frame; 205. Right angle rib plate; 20 6. Selector motor; 207. Electric push rod; 208. Guide seat; 3. Plate changing mechanism; 301. Plate changing seat; 302. Side plate; 3021. Feed chute; 303. Guide cover; 3031. Discharge chute; 31. Pushing assembly; 311. Feeding frame; 312. Discharge end; 313. Feed opening; 314. Guide rail; 315. Feeding motor; 316. Push plate; 32. Docking assembly; 321. Docking seat; 322. Output plate; 323. Docking motor; 324. Lead screw; 325. Pulley; 326. Belt; 327. Nut; 328. Electromagnetic sleeve; 3281, Hexagonal hole; 3282, Electromagnetic base; 3283, Connecting rod; 33, Adsorption assembly; 331, Hollow grinding wheel frame; 3311, Connector a; 3312, Grinding wheel suction cup; 3313, Annular tube a; 3314, Air inlet tube a; 3315, Air outlet tube a; 332, Fastening hollow frame; 3321, Connector b; 3322, Fastening suction cup; 3323, Annular tube b; 3324, Air inlet tube b; 3325, Air outlet tube b; 333, Circulating air pump; 3331, Air outlet end; 3332, Air inlet end; 334, Solenoid valve; 335, Grinding wheel b. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] Example 1: As Figures 5-19 As shown, this embodiment provides a dual-station iron core cutting machine. The dual-station iron core cutting machine includes a frame 1 and a machine cover 101 on the frame 1. A feeding assembly 11 and a cutting assembly 12 are mounted on the frame 1. A selection mechanism 2 and a changing mechanism 3 are provided on one side of the machine cover 101. The selection mechanism 2 includes a selection seat 201 located on one side of the machine cover 101. Two sets of supports 202 are fixedly connected to the selection seat 201. A deflection box 203 is movably connected to the upper end of the two sets of supports 202. Four sets of deflection frames 204 are fixedly connected to the outer side of the deflection box 203. Different specifications of grinding wheels are stored in the four sets of deflection frames 204. The four sets of deflection frames 204 are each equipped with RFID identification tags. A guide seat 208 is provided on one side of the selection seat 201, and an RFID reader / writer is provided at the feeding end of the guide seat 208. The changing mechanism 3 includes a changing seat 301 located on one side of the selection seat 201. A side plate 302 is fixedly connected to one side of the changing seat 301. A feeding groove 3021 is provided on the side plate 302. A guide cover 303 is fixedly connected to one side of the side plate 302. A discharge groove 3031 is provided on the guide cover 303. The changing mechanism 3 also includes a pushing component 31, a docking component 32, and an adsorption component 33 located on the changing seat 301.

[0045] In this embodiment, grinding wheels of different specifications are stored by RFID identification tags on four sets of deflection frames 204 and driven by deflection box 203. During driving, the wheels are identified by RFID reader on guide seat 208, thereby realizing the selection of grinding wheels of different specifications. After feeding, the wheels are input into the wheel changing mechanism 3 for automated wheel changing.

[0046] The feeding assembly 11 includes: a rotating seat 111, which is movably connected to the rotary table 102; a rotary motor 1111, which is located below the rotating seat 111; a clamping seat 112, which is fixedly connected to the rotating seat 111; a positioning seat 113, which is located on the clamping seat 112; a clamp 114, which is located outside the positioning seat 113; and a cutting fluid nozzle 115, which is located on the positioning seat 113.

[0047] In this embodiment, the workpiece is clamped and positioned on the positioning seat 113 by the clamp 114 in the clamping seat 112, and the workpiece is driven to rotate by the rotary motor 1111 to achieve rapid alternating clamping of the two stations. The cutting fluid nozzle 115 sprays out cutting fluid to cool the workpiece and prevent overheating during the cutting process.

[0048] The cutting assembly 12 includes: a cutting stand 121, which is mounted on the flow guide seat 103; a longitudinal telescopic cover 122, which is located below the cutting stand 121; a displacement module 1221, which is located inside the longitudinal telescopic cover 122; a base plate 123, which is mounted on the longitudinal telescopic cover 122; a vertical telescopic cover 124, which is mounted on the cutting stand 121; a lifting module 1241, which is located inside the vertical telescopic cover 124; a motor housing 125, which is mounted on the vertical telescopic cover 124; a motor base 1251, which is fixedly connected inside the vertical telescopic cover 124; a protective telescopic cover 1252, which is located outside the motor housing 125; and an electric hinge 1253, which is located outside the protective telescopic cover 1252.

[0049] The cutting assembly 12 also includes: a variable frequency motor 126, which is mounted on a motor base 1251; an output end 1261, which is located at one end of the variable frequency motor 126; a fastener 1262, which is mounted on the output end 1261; a stainless steel bolt 1263, which is threaded onto the output end 1261; a grinding wheel a1264, which is clamped between the output end 1261 and the fastener 1262; an annular pressure sensor 1265, which is fitted inside the fastener 1262; an internal thread 1266, which is formed on the inner wall of the annular pressure sensor 1265; and four thermoelectric modules 1267, which are fitted inside the fastener 1262.

[0050] In this embodiment, the overall lifting and movement of the cutting equipment is achieved through the displacement module 1221 and the lifting module 1241 to realize movement and vertical cutting. The variable frequency motor 126 controls the speed of the grinding wheel by controlling the output current of the frequency converter. During the cutting process, the longitudinal telescopic cover 122, the vertical telescopic cover 124 and the protective telescopic cover 1252 adapt to the displacement while providing waterproof protection for the internal instruments to prevent the entry of cutting fluid and debris, and at the same time protect the safety of the operators.

[0051] The grinding wheel a1264 is installed by screwing a stainless steel bolt 1263 through the fastener 1262 and the grinding wheel a1264 and tightening it onto the output end 1261. Simultaneously, the inner side of the fastener 1262 is pressed firmly onto the grinding wheel a1264. The four sets of thermoelectric modules 1267 are bismuth telluride-based, directly converting absorbed heat energy into electrical energy through the Seebeck effect. During the cutting process, the uneven heating of the grinding wheel a1264 creates a temperature difference. The directional movement of charge carriers caused by this temperature difference across the thermoelectric modules 1267 generates voltage, thus collecting and utilizing heat. This voltage is then used for the ring pressure sensor 12. Power is supplied to 65. The ring structure of the ring pressure sensor 1265 converts pressure and axial force into electrical signals. Wear or damage to the grinding wheel a1264 will cause changes in cutting force. After wear, the cutting force increases, and when damaged, the force signal will drop sharply or fluctuate. The ring pressure sensor 1265 can capture these force signal changes by monitoring the forces on the grinding wheel such as axial force and bending moment in real time, thereby indirectly judging the condition of the grinding wheel a1264, detecting the damage of the grinding wheel a1264, providing real-time feedback on the condition of the grinding wheel a1264, and facilitating timely replacement operations to ensure production efficiency.

[0052] The film selection mechanism 2 includes a film selection motor 206 located on one side of the bracket 202. Four sets of electric push rods 207 are installed inside the deflection box 203. The four sets of electric push rods 207 are movably inserted into the through holes on the deflection frame 204. The four sets of deflection frames 204 are fixedly connected to the deflection box 203 through right-angle ribs 205.

[0053] In this embodiment, the selection motor 206 drives the sorting of grinding wheels of different specifications within the four sets of deflection frames 204, and the four sets of electric push rods 207 send the selected grinding wheels into the wheel changing mechanism 3 for wheel changing.

[0054] The pushing component 31 includes: a feeding frame 311, which is located inside the changing plate holder 301; a discharge end 312, which is located at one end of the feeding frame 311 and is connected to the feeding trough 3021; ​​a feeding opening 313, which is opened on one side of the feeding frame 311; a guide rail 314, which is located below the feeding frame 311; a feeding motor 315, which is located below the guide rail 314; and a push plate 316, which is movably connected to the guide rail 314.

[0055] In this embodiment, the feeding frame 311 consists of four frame plates, and springs are provided on the frame plates. The guide seat 208 and the electric push rod 207 can push the grinding wheels of different specifications to the storage. The grinding wheels inside are driven by the feeding motor 315 to rotate the drive component in the guide rail 314. The drive component drives the push plate 316 to move through the threaded connection, pushing the grinding wheels from the feed groove 3021 into the guide cover 303. Under the guidance of the guide cover 303 and the weight of the grinding wheels themselves, they slide down to the discharge groove 3031, so as to realize the automatic feeding of the grinding wheels.

[0056] The docking assembly 32 includes: a docking seat 321, which is located at the lower end of the side plate 302; an output plate 322, which is movably connected to the docking seat 321; a docking motor 323, which is mounted below the docking seat 321; a lead screw 324, which is movably connected to the docking seat 321; a pulley 325, which is located at one end of the output shaft of the docking motor 323 and the lead screw 324; a belt 326, which is located on the pulley 325; a nut 327, which is located on the output plate 322; an electromagnetic sleeve 328, which is fixedly connected to; a hexagonal hole 3281, which is located on one side of the electromagnetic sleeve 328; an electromagnetic base 3282, which is located at the other end of the lead screw 324; and a connecting rod 3283, which is fixedly connected to the electromagnetic base 3282.

[0057] In this embodiment, the rotation of the lead screw 324 is achieved by driving the docking motor 323 and the belt 326 on the pulley 325. The rotation is achieved by the threaded connection between the nut 327 and the lead screw 324 and the guide rod, thereby displacing the output plate 322 and further realizing the docking and pushing of the grinding wheel.

[0058] The electromagnetic sleeve 328 is fixedly connected to the lead screw 324 via the connecting rod 3283, so that it will rotate when the lead screw 324 pushes and rotates. The electromagnetic sleeve 328 is given magnetic force through the electromagnetic seat 3282, and the stainless steel bolt 1263 is attracted and fixed by the magnetic force. Thus, the stainless steel bolt 1263 can be disassembled by fixing and rotating in both directions.

[0059] The adsorption assembly 33 includes: a hollow grinding wheel frame 331, which is fixedly connected to the outside of the output plate 322; a connector a3311, which is disposed on the hollow grinding wheel frame 331; four sets of grinding wheel suction cups 3312, which are disposed on the hollow grinding wheel frame 331; an annular tube a3313, which is disposed on the outside of the four sets of grinding wheel suction cups 3312; an air inlet pipe a3314, which is connected through to one side of the annular tube a3313; and an air outlet pipe a3315, which is connected through to the other side of the annular tube a3313.

[0060] The adsorption assembly 33 further includes: a fastening hollow frame 332, which is located inside the grinding wheel hollow frame 331; a connector b3321, which is located on the fastening hollow frame 332; four sets of fastening suction cups 3322, which are located on the fastening hollow frame 332; an annular tube b3323, which is located outside the four sets of fastening suction cups 3322; an air inlet pipe b3324, which is connected to one side of the annular tube b3323; and an air outlet pipe b3325. 325 is connected through to the other side of the annular pipe b3323; circulating air pump 333 is installed inside the output plate 322; air outlet 3331 is located on the circulating air pump 333; air inlet 3332 is located on the circulating air pump 333; solenoid valve 334 is located on the air inlet pipe a3314 and air outlet pipe a3315, as well as the air inlet pipe b3324 and air outlet pipe b3325; grinding wheel b335 is located on the outside of the output plate 322.

[0061] In this embodiment, the air outlet 3331 of the circulating air pump 333 is connected to the annular pipes a3313 and b3323 via the air inlet pipes a3314 and b3324, and the air inlet 3332 is connected to the annular pipes a3313 and b3323 via the air outlet pipes a3315 and b3325. This enables the circulating air pump 333 to connect with the four sets of grinding wheel suction cups 3312 on the annular pipe a3313 and the four sets of fastening suction cups 3322 on the annular pipe b3323, and to be controlled by the solenoid valve 334. Thus, the circulating air pump 333 can independently or simultaneously charge and de-charge the four sets of grinding wheel suction cups 3312 and the four sets of fastening suction cups 3322. The positive and negative pressures inside the suction cups during charging and de-charging are used to grip and place the fastener 1262 and the grinding wheel b335. This gripping method is highly stable and easy to operate.

[0062] Example 2: Figures 1-4 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0063] A rotary table 102 and a flow guide seat 103 are provided on the frame 1. A waste liquid recovery unit 104 is provided under the flow guide seat 103. An electrical control box 105 is provided under the rotary table 102. An infrared photoelectric safety light curtain sensor 106 is provided at the feed inlet of the machine cover 101. A three-color alarm light 107 is provided on the machine cover 101. A PLC touch screen 108 is provided on the side of the machine cover 101. An emergency stop button group 109 is provided below the PLC touch screen 108.

[0064] In this embodiment, during cutting, the guide seat 103 can collect the cutting fluid into the waste fluid recovery unit 104. The waste fluid recovery unit 104 includes a circulating water pump and an industrial nozzle magnetic separation mechanism. The magnetic separation mechanism consists of a magnetic roller and a scraper, allowing the cutting fluid to pass through the magnetic roller and scraper to remove cutting residues contained in the cutting fluid. The system is centrally controlled via the electrical control box 105 and the PLC touch screen 108, and has manual operation for each process and automatic operation for the entire machine. The control system has memory and counting functions, and the product parameters input by the operator can be saved for easy retrieval later. The infrared beam safety light curtain sensor 106 prevents rotational damage to the rotating mechanism during manual loading and clamping. When the workpiece passes through, it will block part of the light beam. The size is determined by calculating the number of blocked beams, which facilitates the subsequent selection of a grinding wheel of the corresponding specification for cutting. The emergency stop button group 109 has a reset function for starting the equipment and stopping the equipment in an emergency. When the equipment stops abnormally, it can be set to automatically restore the initial state on the PLC touch screen 108. During operation, the three-color alarm light 107 can provide audible and visual alarms for abnormal conditions.

[0065] Work steps

[0066] Step 1, material loading process: Turn on the power supply of the electrical control box 105, select the automatic operation mode through the PLC touch screen 108, the infrared beam safety light curtain sensor 106 performs safety area detection, and the three-color alarm light 107 displays the equipment ready status.

[0067] The iron core to be cut is manually placed on the fixture 114, the positioning seat 113 accurately positions the workpiece, the fixture 114 automatically clamps the workpiece, and the rotary motor 1111 drives the rotary seat 111 to rotate the workpiece to the cutting station to complete the loading.

[0068] When the workpiece passes through the feed, it will block part of the beam. The size is determined by calculating the number of blocked beams, which makes it easier to select and match the corresponding grinding wheel for cutting.

[0069] Step 2, Cutting process: The overall lifting and moving of the cutting equipment is realized through the displacement module 1221 and the lifting module 1241 to achieve moving and vertical cutting. The variable frequency motor 126 controls the speed of the grinding wheel by controlling the output current of the frequency converter. The variable frequency motor 126 drives the grinding wheel a1264 to rotate at high speed and contact the workpiece for cutting.

[0070] During the cutting process, cutting fluid is sprayed out through the cutting fluid nozzle 115 to cool the workpiece and prevent overheating during the cutting process; dynamic protection is provided by the longitudinal telescopic cover 122, the vertical telescopic cover 124 and the protective telescopic cover 1252, which can also provide waterproof protection for the internal instruments, prevent the entry of cutting fluid and debris, and protect the safety of the operators.

[0071] During the cutting process, the guide seat 103 collects the cutting fluid into the waste fluid recovery unit 104. The cutting fluid is cleaned of cutting residues by the magnetic roller and scraper, and then sprayed by the circulating water pump.

[0072] During the cutting process, the PLC system records production parameters and monitors the equipment status in real time. The emergency stop button group 109 can quickly stop the machine in an emergency. When the equipment malfunctions, the three-color alarm light 107 emits an audible and visual alarm. The system automatically saves the working status and can continue to run after restoration.

[0073] After the cutting is completed, the rotary table 102 drives the feeding assembly 11 to switch stations. The workpiece at the new station begins to be cut, while the completed station is unloaded.

[0074] Step 3, Grinding wheel condition monitoring process: During the cutting process, the fastener 1262 is tightened by the stainless steel bolt 1263, so that the four sets of thermoelectric modules 1267 on the fastener 1262 are in close contact with the grinding wheel a1264. The four sets of thermoelectric modules 1267 are bismuth telluride based, and the absorbed heat energy is directly converted into electrical energy through the Seebeck effect. During the cutting process, the uneven heating of the grinding wheel a1264 creates a temperature difference. The directional movement of charge carriers caused by the temperature difference at both ends of the thermoelectric module 1267 generates a voltage, so that heat can be collected and utilized, and power is supplied to the ring pressure sensor 1265.

[0075] The annular pressure sensor 1265 monitors the stress state of the grinding wheel a1264 in real time. The annular structure of the annular pressure sensor 1265 converts pressure and axial force into electrical signals. Wear or breakage of the grinding wheel a1264 will cause changes in cutting force. After wear, the cutting force increases, and when it breaks, the force signal will drop sharply or fluctuate. By monitoring the forces on the grinding wheel such as axial force and bending moment in real time, the annular pressure sensor 1265 can capture these force signal changes, thereby indirectly judging the state of the grinding wheel a1264 and detecting damage to the grinding wheel a1264 to provide real-time feedback on the state of the grinding wheel a1264. When a wear or breakage signal of the grinding wheel is detected, the wheel replacement process is automatically triggered.

[0076] Step 4, New Grinding Wheel Selection Process: The selection motor 206 drives the deflection box 203 to rotate the four sets of deflection frames 204. During the drive, the RFID reader on the guide seat 208 identifies the RFID tags on the four sets of deflection frames 204, thereby selecting grinding wheels b335 of different specifications. The corresponding deflection frame 204 stops on the guide seat 208. The four sets of electric push rods 207 push the selected grinding wheel b335 in the deflection frame 204 outward. The grinding wheel b335 overcomes the resistance of the elastic edges on both sides of the deflection frame 204 and is then guided by the guide seat 208 and fed into the feeding frame 311 to complete the selection and feeding process.

[0077] When a new grinding wheel b335 enters the feeding frame 311, the pressure from the electric push rod 207 causes the four frame plates of the feeding frame 311 to overcome the rebound force of the telescopic spring and store grinding wheels b335 of different specifications.

[0078] Step 5, old grinding wheel removal process: The screw 324 is rotated clockwise by the drive of the motor 323 and the belt 326 on the pulley 325. The rotation is achieved by the threaded connection between the nut 327 and the screw 324 and the guide rod, so that the output plate 322 is displaced and inserted into the machine cover 101 and close to the cutting assembly 12.

[0079] The fastener 1262 and the grinding wheel a1264 are moved by the displacement module 1221 and the lifting module 1241, so that the fastener 1262 and the grinding wheel a1264 are in close contact with the fastening suction cup 3322 and the grinding wheel suction cup 3312 on the fastening hollow frame 332 and the grinding wheel hollow frame 331, respectively, and the stainless steel bolt 1263 is inserted into the hexagonal hole 3281 of the electromagnetic sleeve 328, thus completing the disassembly and docking.

[0080] During docking, the air inside the four sets of grinding wheel suction cups 3312 and the four sets of fastening suction cups 3322 is extracted through the air inlet 3332 of the circulating air pump 333, so that the negative pressure inside the suction cups adsorbs and fixes the fasteners 1262 and the grinding wheel a1264, and the laser positioning device and vision sensor on the output board 322 ensure the accuracy of docking.

[0081] The electromagnetic sleeve 328 is given a magnetic force by the electromagnetic base 3282, and the stainless steel bolt 1263 is attracted and fixed by the magnetic force. The screw 324 is driven to rotate in the opposite direction by the counterclockwise rotation of the docking motor 323. The reverse rotation of the screw 324 drives the electromagnetic sleeve 328 to rotate in the counterclockwise direction to drive the stainless steel bolt 1263. At the same time, the screw 324 drives the output plate 322 to retract.

[0082] After retracting to the designated position, close the air inlet pipes b3324 and outlet pipes b3325 on both sides of the annular tube b3323 of the four sets of fastening suction cups 3322, and the solenoid valve 334 on 3325, so that the four sets of fastening suction cups 3322 maintain negative pressure. Keep the solenoid valve 334 on both sides of the annular tube a3313 of the four sets of grinding wheel suction cups 3312 unobstructed. Inject air into the four sets of grinding wheel suction cups 3312 through the circulating air pump 333, so that the negative pressure in the four sets of grinding wheel suction cups 3312 disappears and releases the adsorption on the grinding wheel a1264. The grinding wheel a1264 falls into the collection unit below to complete the disassembly.

[0083] Step 6, New Grinding Wheel Replacement Process: The output plate 322 and the disassembled fasteners 1262 and stainless steel bolts 1263 are retracted to their initial positions, i.e., inside the guide cover 303. The drive component inside the guide rail 314 is rotated by the feeding motor 315. The drive component drives the push plate 316 to move through the threaded connection, pushing the outermost grinding wheel b335 in the new grinding wheel set from the feed groove 3021 into the guide cover 303. Guided by the guide cover 303 and the weight of the grinding wheel b335 itself, it slides down to the discharge groove 3031.

[0084] The screw 324 is driven to rotate clockwise by the docking motor 323, which in turn drives the output plate 322 and the four sets of grinding wheel suction cups 3312 to contact the grinding wheel b335. The four sets of grinding wheel suction cups 3312 adsorb and grasp the grinding wheel b335. The continuous movement of the output plate 322 connects the grinding wheel b335, the fastener 1262 and the stainless steel bolt 1263 to the output end 1261 of the frequency converter motor 126. The screw 324 drives the electromagnetic sleeve 328 to rotate clockwise to tighten the stainless steel bolt 1263, thus completing the automated wheel changing.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-station iron core cutting machine, comprising a frame (1), characterized in that, It also includes a machine cover (101) on the frame (1), on which a feeding assembly (11) and a cutting assembly (12) are provided, and a piece selection mechanism (2) and a piece changing mechanism (3) are provided on one side of the machine cover (101). The selection mechanism (2) includes a selection seat (201) located on one side of the machine cover (101). Two sets of brackets (202) are fixedly connected to the selection seat (201). A deflection box (203) is movably connected to the upper end of the two sets of brackets (202). Four sets of deflection frames (204) are fixedly connected to the outside of the deflection box (203). Different specifications of grinding wheels are stored in the four sets of deflection frames (204). Each of the four sets of deflection frames (204) is equipped with an RFID identification tag. A guide seat (208) is provided on one side of the selection seat (201). An RFID reader / writer is provided at the feeding end of the guide seat (208). The changing mechanism (3) includes a changing seat (301) located on one side of the selecting seat (201), a side plate (302) fixedly connected to one side of the changing seat (301), a feeding groove (3021) provided on the side plate (302), a guide cover (303) fixedly connected to one side of the side plate (302), and a discharge groove (3031) provided on the guide cover (303). The changing mechanism (3) also includes a pushing component (31), a docking component (32), and an adsorption component (33) located on the changing seat (301). The docking assembly (32) includes: a docking seat (321), which is located at the lower end of the side plate (302); an output plate (322), which is movably connected to the docking seat (321); a docking motor (323), which is mounted under the docking seat (321); a lead screw (324), which is movably connected to the docking seat (321); a pulley (325), which is located at one end of the output shaft of the docking motor (323) and the lead screw (324); and a leather belt. Belt (326), the belt (326) is disposed on the pulley (325); nut (327), the nut (327) is disposed on the output plate (322); electromagnetic sleeve (328), the electromagnetic sleeve (328) is fixedly connected to the hexagonal hole (3281), the hexagonal hole (3281) is opened on one side of the electromagnetic sleeve (328); electromagnetic seat (3282), the electromagnetic seat (3282) is disposed at the other end of the lead screw (324); connecting rod (3283), the connecting rod (3283) is fixedly connected to the electromagnetic seat (3282).

2. The dual-station iron core cutting machine according to claim 1, characterized in that, The frame (1) is provided with a rotary table (102) and a flow guide seat (103). A waste liquid recovery unit (104) is provided under the flow guide seat (103). An electrical control box (105) is provided under the rotary table (102). An infrared beam safety light curtain sensor (106) is provided at the feed inlet of the machine cover (101). A three-color alarm light (107) is provided on the machine cover (101). A PLC touch screen (108) is provided on the side of the machine cover (101). An emergency stop button group (109) is provided below the PLC touch screen (108).

3. A dual-station iron core cutting machine according to claim 2, characterized in that, The feeding assembly (11) includes: a rotating seat (111), which is movably connected to the rotating table (102); a rotary motor (1111), which is located below the rotating seat (111); a clamping seat (112), which is fixedly connected to the rotating seat (111); a positioning seat (113), which is located on the clamping seat (112); a clamp (114), which is located outside the positioning seat (113); and a cutting fluid nozzle (115), which is located on the positioning seat (113).

4. A dual-station iron core cutting machine according to claim 2, characterized in that, The cutting assembly (12) includes: a cutting stand (121) disposed on the guide seat (103); a longitudinal telescopic cover (122) disposed below the cutting stand (121); a displacement module (1221) disposed inside the longitudinal telescopic cover (122); a base plate (123) mounted on the longitudinal telescopic cover (122); and a vertical telescopic cover (124) disposed on the cutting stand (121). The following components are provided: a lifting module (1241) located inside the vertical telescopic cover (124); a motor housing (125) mounted on the vertical telescopic cover (124); a motor base (1251) fixedly connected inside the vertical telescopic cover (124); a protective telescopic cover (1252) located outside the motor housing (125); and an electric hinge (1253) located outside the protective telescopic cover (1252).

5. A dual-station iron core cutting machine according to claim 4, characterized in that, The cutting assembly (12) further includes: a variable frequency motor (126), the variable frequency motor (126) being mounted on the motor base (1251); an output end (1261), the output end (1261) being located at one end of the variable frequency motor (126); a fastener (1262), the fastener (1262) being mounted on the output end (1261); a stainless steel bolt (1263), the stainless steel bolt (1263) being threadedly connected to the output end (1261); and a grinding wheel a (1251). 64), the grinding wheel a (1264) is clamped between the output end (1261) and the fastener (1262); the annular pressure sensor (1265) is fitted inside the fastener (1262); the internal thread (1266) is formed on the inner wall of the annular pressure sensor (1265); the thermoelectric module (1267) consists of four sets of thermoelectric modules (1267) fitted inside the fastener (1262).

6. A dual-station iron core cutting machine according to claim 1, characterized in that, The film selection mechanism (2) includes a film selection motor (206) located on one side of the bracket (202). The deflection box (203) is equipped with four sets of electric push rods (207). The four sets of electric push rods (207) are movably inserted into the through holes on the deflection frame (204). The four sets of deflection frames (204) are fixedly connected to the deflection box (203) through right-angle ribs (205).

7. A dual-station iron core cutting machine according to claim 1, characterized in that, The pushing component (31) includes: a feeding frame (311) located inside the changing plate seat (301); a discharge end (312) located at one end of the feeding frame (311) and connected to the feeding groove (3021); a feeding opening (313) located on one side of the feeding frame (311); a guide rail (314) located below the feeding frame (311); a feeding motor (315) located below the guide rail (314); and a push plate (316) movably connected to the guide rail (314).

8. A dual-station iron core cutting machine according to claim 7, characterized in that, The adsorption assembly (33) includes: a hollow grinding wheel frame (331), which is fixedly connected to the outside of the output plate (322); a connector a (3311), which is disposed on the hollow grinding wheel frame (331); four sets of grinding wheel suction cups (3312), which are disposed on the hollow grinding wheel frame (3311); annular tube a (3313), which is disposed on the outside of the four sets of grinding wheel suction cups (3312); an air inlet pipe a (3314), which is connected through to one side of the annular tube a (3313); and an air outlet pipe a (3315), which is connected through to the other side of the annular tube a (3313).

9. A dual-station iron core cutting machine according to claim 8, characterized in that, The adsorption assembly (33) further includes: a fastening hollow frame (332), which is located inside the grinding wheel hollow frame (331); a connector b (3321), which is located on the fastening hollow frame (332); four sets of fastening suction cups (3322), which are located on the fastening hollow frame (332); an annular tube b (3323), which is located outside the four sets of fastening suction cups (3322); an air inlet pipe b (3324), which is connected through to one side of the annular tube b (3323); and an air outlet pipe b (3325). A circulating air pump (333) is connected to the other side of the annular pipe b (3323); the circulating air pump (333) is installed inside the output plate (322); the air outlet (3331) is located on the circulating air pump (333); the air inlet (3332) is located on the circulating air pump (333); the solenoid valve (334) is located on the air inlet pipe a (3314) and the air outlet pipe a (3315), and the air inlet pipe b (3324) and the air outlet pipe b (3325); the grinding wheel b (335) is located outside the output plate (322).

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