Iron core iron loss detection equipment and detection method thereof

Abstract

The invention provides iron core iron loss detection equipment which comprises a machine base, and a feeding mechanism, a material moving mechanism and a detection mechanism are arranged on the machine base. The feeding mechanism comprises a feeding base, a material preparation air cylinder, a material preparation plate, a feeding frame, a feeding barrel and an intermittent air cylinder, the feeding barrel is provided with a feeding hole, a hole is formed in the side of the feeding frame, a piston rod of the intermittent air cylinder is connected with a material separation sliding block and a material separation piece, and orderly feeding of iron cores can be achieved; the material moving mechanism comprises a material moving seat, a lifting guide rod, a lifting air cylinder, an air cylinder seat, a material moving clamping jaw air cylinder and a driving assembly, and iron cores can be carried among the stations. The detection mechanism comprises a detection seat with a seat cavity and an iron loss detector, a placement table is arranged on the bottom wall of the seat cavity, a detection air cylinder on the top face of the detection seat is connected with a probe frame, an iron loss probe of the iron loss detector is arranged on the probe frame, the iron loss probe is electrically connected with a front-end device and a digital display in sequence, and iron core iron loss can be accurately detected. According to the equipment, iron core feeding, moving and detection automation is realized, the labor load is reduced, and the detection efficiency and precision are improved.

Description

Technical Field

[0001] This invention relates to the technical field of iron core loss detection, and in particular to an iron core loss detection device and its detection method. Background Technology

[0002] "Iron loss," also known as "iron consumption," mainly includes hysteresis loss and eddy current loss. Hysteresis loss refers to the inherent loss generated when ferromagnetic materials act as magnetic media under a certain excitation magnetic field. Eddy current loss refers to the loss generated in the iron core when the magnetic flux alternates, resulting in an induced electromotive force and induced current. This induced current is vortex-shaped and called eddy current. The loss generated by the induced current in the iron core resistance is eddy current loss. Because eddy currents passing through the iron core can generate heat inside the iron core, there is a risk of the iron core burning out, which in turn affects the operating performance of the motor. Therefore, to improve the operating performance and safety of the motor, it is necessary to detect the iron loss of the iron core.

[0003] The existing Chinese patent with authorization announcement number CN213240330U discloses a device for measuring the iron loss of a motor core, including an eddy current displacement sensor. The eddy current displacement sensor includes a probe, a cable, and a preamplifier. The probe is connected to the preamplifier via the cable. It also includes a pressure rod, a pressure buffer plate, a pressure head, and a pressure head fixing plate. The end of the pressure rod is fixedly connected to the pressure buffer plate. The pressure buffer plate and the pressure head fixing plate are fixedly connected via guide posts. The pressure head is fixed at the bottom of the pressure head fixing plate, and the probe is embedded in the pressure head.

[0004] When the device for measuring the iron loss of a motor core is in operation, the lower end of the motor core to be tested is first placed in the positioning groove on the core placement plate. Then, pressure is applied downwards by manually pressing the pressure rod. Since the end of the pressure rod is fixedly connected to the pressure buffer plate, and the pressure buffer plate is fixedly connected to the pressure head fixing plate, the pressure head is fixed at the bottom of the pressure head fixing plate, and the probe is embedded in the pressure head. Therefore, the pressure transmitted by the pressure rod to the pressure head will cause it to come into contact with the upper end of the motor core to be tested. At this time, the preamplifier and digital display of the eddy current displacement sensor are turned on. The high-frequency oscillating current generated by the preamplifier flows into the probe through the cable, generating an alternating magnetic field in the coil at the probe head. When the motor core to be tested approaches this magnetic field, an induced current is generated. At the same time, the eddy current field also generates an alternating magnetic field in the opposite direction to the head coil. Due to its reaction, the amplitude and phase of the high-frequency current in the head coil are changed (i.e., the effective impedance of the coil changes). The preamplifier obtains the feedback change in coil impedance and, after signal processing, outputs the measured iron loss value to the digital display.

[0005] The existing technical solutions mentioned above have the following drawbacks: During the operation, workers need to repeatedly bend over to pick up the iron core to be tested and manually apply downward pressure. This kind of repetitive work not only has a high labor load, but long-term performance can easily lead to occupational diseases such as lumbar muscle strain and hand joint damage. Summary of the Invention

[0006] The problem to be solved by the present invention is to provide a core iron loss detection device that addresses the above-mentioned shortcomings of the prior art, thereby solving the problem of high labor load in the prior art.

[0007] The above-mentioned objective of this invention is achieved through the following technical solution: a core iron loss detection device, comprising a base, wherein a feeding mechanism, a transferring mechanism, and a detection mechanism are provided on the base; The feeding mechanism includes a feeding seat mounted on a machine base, a material preparation cylinder mounted on the feeding seat, a material preparation plate mounted on the piston rod of the material preparation cylinder, a feeding frame mounted on the feeding seat, a feeding cylinder mounted vertically on the feeding frame, a feeding hole opened on the top surface of the feeding cylinder that passes through the feeding cylinder and the feeding frame sequentially and is located above the material preparation plate, a side opening communicating with the feeding hole is opened through the side wall of the feeding frame, an intermittent cylinder mounted on the feeding frame, a material separating slider mounted after the piston rod of the intermittent cylinder passes through the feeding frame and slides with the side opening, and a material separating plate mounted on the end face of the material separating slider away from the intermittent cylinder; The material transfer mechanism includes a material transfer seat slidably mounted on the machine base, several lifting guide rods vertically mounted on the machine base, a lifting cylinder mounted on the material transfer seat, a cylinder seat mounted on the piston rod of the lifting cylinder and slidably cooperating with the lifting guide rod, several material transfer gripper cylinders mounted on the cylinder seat, and a drive assembly for driving the material transfer seat to slide. The testing mechanism includes a testing base with a cavity mounted on a base and an iron loss detector. A placement platform is provided on the bottom wall of the cavity. A testing cylinder is provided on the top surface of the testing base. The piston rod of the testing cylinder passes through the testing base and is connected to a probe frame. The iron loss detector includes an iron loss probe, a preamplifier, and a digital display. The iron loss probe is mounted on the probe frame and is electrically connected to the preamplifier. The preamplifier is electrically connected to the digital display.

[0008] The present invention is further configured such that: the driving assembly includes a driving cylinder and a connecting plate, the driving cylinder is disposed on the top surface of the machine base, and the connecting plate is disposed on the piston rod of the driving cylinder and connected to the material transfer seat.

[0009] The present invention is further configured such that: a plurality of proximity switch assemblies located on both sides of the transfer seat are provided on the top surface of the machine base, and the proximity switch assembly includes a switch frame disposed on the top surface of the machine base and a proximity switch disposed on the switch frame.

[0010] The present invention is further configured such that: the probe holder includes an upper plate, a connecting rod, and a lower plate; the top surface of the upper plate is connected to the piston rod of the detection cylinder; the connecting rod connects the upper plate and the lower plate; and the iron loss probe is threadedly connected to the center of the lower plate.

[0011] The present invention is further configured such that: a qualified product conveyor is provided on the top surface of the base, the qualified product conveyor being used to transport the qualified iron core from the material transfer mechanism to the storage position.

[0012] The invention is further configured such that: a seat groove is formed on the top surface of the base; a plurality of linear sliding grooves communicating with the seat groove are formed on the side wall of the base; a box groove is formed on the bottom wall of the seat groove; a qualified product box is slidably arranged in the box groove; a storage mechanism is provided on the frame; the storage mechanism includes a linear slider slidably arranged in the linear sliding groove; a rodless cylinder is arranged between adjacent linear sliders; a cylinder frame is arranged on the piston rod of the rodless cylinder; a storage gripper cylinder is arranged on the cylinder frame; and a flat drive assembly is provided on the base for driving the linear slider to reciprocate linearly along the linear sliding groove.

[0013] The present invention is further configured such that: the flat drive assembly includes a nut, a lead screw, and a drive motor; the nut is disposed on a linear slider; the lead screw passes through a linear groove and forms a lead screw structure with the nut; the drive motor is disposed on the side wall of the base and its output shaft is coaxially connected to the lead screw.

[0014] The present invention is further configured such that: a defective product unloading mechanism is provided on the frame, the defective product unloading mechanism includes a rotary motor, the rotary motor is provided on the top wall of the inner cavity of the machine base, the motor shaft of the rotary motor passes through the machine base and is provided with a cylinder plate, a slide cylinder is provided on the top surface of the cylinder plate, and a defective product gripper cylinder is provided on the piston rod of the slide cylinder.

[0015] The present invention is further configured such that: a plurality of box frames are provided on the top surface of the machine base, and defective product boxes are provided on the top surface of the box frames.

[0016] A detection method applied to the iron core loss detection equipment according to claims 1-9, characterized in that the detection method includes the following steps: S1, the iron cores are stacked in the feed hole in sequence. The preparation cylinder drives the preparation plate to move up to the outlet end of the feed hole. The intermittent cylinder drives the material separator slider and the material separator to be pulled out of the feed hole. The stacked iron cores fall down under the action of gravity. When the bottom iron core falls to the preparation plate, the intermittent cylinder drives the material separator to insert between the two bottom iron cores to restrict the iron cores above from falling. The preparation cylinder drives the preparation plate to move the iron cores to the loading position. S2, the lifting cylinder drives the cylinder seat to move the material transfer gripper cylinder upward, the piston rod of the drive cylinder extends to move the material transfer seat closer to the feeding mechanism until the material transfer seat abuts against the proximity switch. At this time, the material transfer mechanism is detected to have reached the feeding position. The lifting cylinder drives the cylinder seat to move the material transfer gripper cylinder downward and grip the iron core to be tested at the feeding position. The piston rod of the drive cylinder retracts to move the material transfer seat away from the feeding mechanism until the material transfer seat abuts against another proximity switch. At this time, the material transfer mechanism is detected to have reached the detection position. The material transfer gripper cylinder releases the iron core so that the iron core falls on the placement table. The material transfer gripper cylinder moves out of the detection position under the drive of the drive cylinder. S3, the detection cylinder drives the probe frame to move the iron loss probe downward until the iron loss probe contacts the iron core, and the iron loss detector checks whether the iron core is qualified. S4. When the iron core passes inspection, the lifting cylinder drives the cylinder seat to move the transfer gripper cylinder upwards. The piston rod of the drive cylinder extends, causing the transfer seat to move closer to the loading mechanism until it abuts against the proximity switch. At this point, the transfer mechanism is detected as having reached the loading position. The lifting cylinder then drives the cylinder seat to move the transfer gripper cylinder downwards, gripping the iron core to be inspected at the loading position and the qualified iron core at the inspection position. The piston rod of the drive cylinder retracts, causing the transfer seat to move away from the loading mechanism until it abuts against another proximity switch. When the proximity switch is activated, the transfer gripper cylinder releases the iron core, and the iron core to be tested falls onto the placement table. The qualified iron core falls onto the qualified product conveyor, which then sends the iron core to the storage position. After the storage gripper cylinder grabs the iron core, the rodless cylinder drives the storage gripper cylinder to slide along the width of the machine base, and the horizontal drive assembly drives the storage gripper cylinder to slide along the length of the machine base. Through the cooperation of the rodless cylinder and the horizontal drive assembly, the storage gripper cylinder can orderly grab the workpiece and place it into the qualified product box. S5, When the iron core fails the inspection, the rotary cylinder drives the slide cylinder and the non-conforming product gripper cylinder to rotate until they are directly facing the non-conforming iron core. The slide cylinder drives the non-conforming product gripper cylinder to extend and grab the non-conforming iron core. Then, the slide cylinder drives the non-conforming product gripper cylinder to retract. Then, the rotary cylinder drives the slide cylinder and the non-conforming product gripper cylinder to rotate until the non-conforming product gripper cylinder moves the grabbed non-conforming iron core to the top of the non-conforming product box. The non-conforming product gripper cylinder releases the non-conforming iron core, and the non-conforming iron core falls into the non-conforming product box.

[0017] In summary, the beneficial technical effects of the present invention are as follows: (1) Significantly reduce labor load: Through the automated design of the entire process of feeding, transferring, testing, sorting and storing, it replaces repetitive labor such as manually bending over to pick up materials, manually applying pressure to test, and manually sorting and storing, completely solving the problems of high labor load and easy to cause lumbar muscle strain and hand joint damage in traditional testing methods, and improving work safety and comfort. (2) Improve detection efficiency and consistency: The automated mechanism can realize continuous feeding, rapid material transfer and accurate detection of iron cores, avoiding problems such as inconsistent rhythm and operation errors caused by manual operation, and significantly improving detection efficiency; (3) Automated sorting and orderly storage of iron cores: Through the cooperation of qualified product conveyor, storage mechanism and unqualified product unloading mechanism, qualified and unqualified iron cores are automatically sorted, transported and stored. This not only saves manual sorting time, but also avoids the iron cores from being piled up messily or damaged during storage, thus improving the quality of product storage and management convenience. Attached Figure Description

[0018] Figure 1 This is a first-view structural schematic diagram of the iron core loss detection equipment in this invention; Figure 2 This is a second-view structural schematic diagram of the iron core loss detection equipment in this invention; Figure 3 This is a schematic diagram of the feeding mechanism in this invention; Figure 4 This is a partial exploded view of the feeding mechanism in this invention; Figure 5 This is a schematic diagram of the material transfer mechanism in this invention; Figure 6 This is a schematic diagram of the detection mechanism in this invention; Figure 7 This is a schematic diagram of the storage mechanism in this invention; Figure 8 This is a schematic diagram of the non-conforming product unloading mechanism in this invention.

[0019] In the above attached figures: 1. Base; 2. Feeding mechanism; 3. Feeding seat; 4. Material preparation cylinder; 5. Material preparation plate; 6. Feeding rack; 7. Feeding cylinder; 8. Feeding hole; 9. Side opening; 10. Intermittent cylinder; 11. Material separator slider; 12. Material separator plate; 13. Material transfer mechanism; 14. Material transfer seat; 15. Lifting guide rod; 16. Top plate; 17. Lifting cylinder; 18. Cylinder seat; 19. Linear bearing; 20. Material transfer gripper cylinder; 21. Drive cylinder; 22. Connecting plate; 23. Switch frame; 24. Proximity switch; 25. Detection mechanism; 26. Detection seat; 27. Seat cavity; 28. Placement stage; 29. ​​Detection cylinder; 30. Probe frame; 30 1. Upper plate; 302. Connecting rod; 303. Lower plate; 31. Upright pole; 32. Iron loss probe; 33. Preamplifier; 34. Digital display; 35. Qualified product conveyor; 36. Seat groove; 37. Linear chute; 38. Box groove; 39. Qualified product box; 40. Storage mechanism; 41. Linear slider; 42. Rodless cylinder; 43. Cylinder frame; 44. Storage gripper cylinder; 45. Slot; 46. Nut; 47. Lead screw; 48. Bearing; 49. Drive motor; 50. Box frame; 51. Unqualified product box; 52. Unqualified product unloading mechanism; 53. Rotary motor; 54. Cylinder plate; 55. Slide table cylinder; 56. Unqualified product gripper cylinder. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 and 2 As shown, the present invention proposes a core iron loss detection device, including a base 1 with an inner cavity, and a feeding mechanism 2, a transferring mechanism 13, a detection mechanism 25, a qualified product conveyor 35, a qualified product box 39, a storage mechanism 40, a non-qualified product box 51, and a non-qualified product unloading mechanism 52.

[0022] like Figure 3 and 4 As shown, the feeding mechanism 2 is used to feed the iron core to the feeding position so that the transfer mechanism 13 can grab it. The feeding mechanism 2 includes a feeding seat 3, which is "L" shaped and screwed to the top surface of the machine base 1. A preparation cylinder 4 is screwed to the feeding seat 3, and a preparation plate 5 for supporting the iron core is fixedly connected to the top of the piston rod of the preparation cylinder 4.

[0023] like Figure 3 and 4As shown, a feeding frame 6 is screwed onto the feeding base 3. A feeding cylinder 7 is vertically mounted on the feeding frame 6. A feed hole 8 is opened on the top surface of the feeding cylinder 7, passing through the feeding cylinder 7 and the feeding frame 6 in sequence. The feed hole 8 is located directly above the material preparation plate 5. A side opening 9 communicating with the feed hole 8 is opened through the side wall of the feeding frame 6. An intermittent cylinder 10 is screwed onto the feeding frame 6. After the piston rod of the intermittent cylinder 10 passes through the feeding frame 6, a material-separating slider 11 that slides with the side opening 9 is welded and fixed. A material-separating plate 12 is fixedly connected to the end face of the material-separating slider 11 away from the intermittent cylinder 10.

[0024] like Figure 5 As shown, the material transfer mechanism 13 is used to move the iron core. The material transfer mechanism 13 includes a material transfer seat 14, a drive assembly, and a proximity switch assembly. The material transfer seat 14 is slidably mounted on the top surface of the machine base 1 via a linear guide rail composed of a guide rail and a slider. Two symmetrical lifting guide rods 15 are vertically mounted on the top surface of the material transfer seat 14, and a top plate 16 is fixedly connected to the top of the lifting guide rods 15. A lifting cylinder 17 is screwed onto the top surface of the material transfer seat 14. A cylinder seat 18 that slides with the lifting guide rods 15 is screwed onto the piston rod of the lifting cylinder 17. A linear bearing 4819 that slides with the lifting guide rods 15 is screwed onto the bottom surface of the cylinder seat 18. Two material transfer gripper cylinders 20 for gripping the iron core are symmetrically mounted on the bottom surface of the cylinder seat 18.

[0025] like Figure 5 As shown, the drive assembly is used to drive the transfer seat 14 to slide. The drive assembly includes a drive cylinder 21 and a connecting plate 22. The drive cylinder 21 is screwed to the top surface of the machine base 1. The connecting plate 22 is welded and fixed on the piston rod of the drive cylinder 21. The connecting plate 22 is "L" shaped and is screwed to the top surface of the transfer seat 14.

[0026] like Figure 5 As shown, the proximity switch assembly is used to detect whether the transfer seat 14 has reached the loading position and the detection position. There are two proximity switch assemblies, which are located on both sides of the transfer seat 14 respectively. The proximity switch assembly includes a switch frame 23 and a proximity switch 24. The switch frame 23 is screwed to the top surface of the machine base 1, and the proximity switch 24 is threaded to the switch frame 23.

[0027] like Figure 6 As shown, the detection mechanism 25 is used to detect the iron loss of the iron core. The detection mechanism 25 includes a detection seat 26 and an iron loss detector. The detection seat 26 has a seat cavity 27. The detection seat 26 is screwed to the top surface of the base 1. A placement platform 28 is screwed to the bottom wall of the seat cavity 27. The placement platform 28 is made of electrically insulating resin. A detection cylinder 29 is screwed to the top surface of the detection seat 26. The piston rod of the detection cylinder 29 passes through the detection seat 26 and is connected to a probe frame 30. A vertical rod 31 is vertically arranged in the seat cavity 27 and slides with the probe frame 30.

[0028] like Figure 6 As shown, the probe holder 30 is made of electrically insulating resin. The probe holder 30 includes an upper plate 301, a connecting rod 302, and a lower plate 303. The top surface of the upper plate 301 is connected to the piston rod flange of the detection cylinder 29. The connecting rod 302 is used to connect the upper plate 301 and the lower plate 303.

[0029] like Figure 6 As shown, the iron loss detector includes an iron loss probe 32, a preamplifier 33, and a digital display 34. The iron loss probe 32 is threaded to the center of the lower plate 303. The iron loss probe 32 is electrically connected to the preamplifier 33 via a cable. The preamplifier 33 is electrically connected to the digital display 34 via a cable.

[0030] like Figure 1 As shown, the qualified product conveyor 35 is a belt conveyor. The qualified product conveyor 35 is used to transport the qualified iron core from the material transfer mechanism 13 to the storage position so that the storage mechanism 40 can grab and store it.

[0031] like Figure 2 As shown, a seat groove 36 is provided on the top surface of the base 1. Two straight sliding grooves 37 connected to the seat groove 36 are symmetrically provided on the side wall of the base 1. A box groove 38 is provided on the bottom wall of the seat groove 36. The box groove 38 is a rectangular groove. A qualified product box 39 is slidably arranged in the box groove 38. The qualified product box 39 is used to store the iron core that has passed the test. A layer of rubber is glued to the inner wall of the qualified product box 39.

[0032] like Figure 2 and 7 As shown, the storage mechanism 40 is used to put the iron core in the storage position into the qualified product box 39. The storage mechanism 40 includes a linear slider 41, which is "I" shaped. The linear slider 41 is slidably disposed in the linear slide groove 37. A rodless cylinder 42 is provided between the two linear sliders 41, and both ends are screwed to the linear sliders 41. A cylinder frame 43 is screwed to the piston rod of the rodless cylinder 42. The cylinder frame 43 is "L" shaped. A storage gripper cylinder 44 is screwed to the cylinder frame 43.

[0033] like Figure 2 and 7As shown, the base 1 is provided with a flat drive assembly for driving the linear slider 41 to reciprocate linearly along the linear slide groove 37. The flat drive assembly includes a nut 46, a lead screw 47, and a drive motor 49. The linear slider 41 has a slot 45 through which the nut 46 is inserted along its length. The nut 46 is screwed to the linear slider 41 via a flange. The lead screw 47 passes through the linear slide groove 37 and forms a ball screw 47 structure with the nut 46. Bearings 48 are interference-fitted into the groove walls at both ends of the linear slide groove 37 by slotting. The two bearings 48 are fitted onto the lead screw 47 to support the rotation of the lead screw 47. The drive motor 49 is screwed to the side wall of the base 1. The motor shaft of the drive motor 49 is coaxially connected to the lead screw 47 via a spline connection.

[0034] like Figure 2 and 8 As shown, two box frames 50 are screwed to the top surface of the base 1. A defective product box 51 is welded and fixed to the top surface of the box frame 50. The bottom of the defective product box 51 is set at an angle to avoid material accumulation. The worker judges the time to clean the defective product box 51 based on the storage of the iron core inside the defective product box 51.

[0035] like Figure 2 and 8 As shown, the non-conforming product unloading mechanism 52 is used to grab non-conforming iron cores and put them into the non-conforming product box 51. The non-conforming product unloading mechanism 52 includes a rotary motor 53, which is screwed to the top wall of the inner cavity of the machine base 1. The motor shaft of the rotary motor 53 passes through the machine base 1 and is screwed to a cylinder plate 54. A slide cylinder 55 is screwed to the top surface of the cylinder plate 54. A non-conforming product gripper cylinder 56 is screwed to the piston rod of the slide cylinder 55.

[0036] The present invention also proposes a detection method for the above-mentioned iron core loss detection equipment, the detection method comprising the following steps: S1, the iron cores are stacked in the feed hole 8. The preparation cylinder 4 drives the preparation plate 5 to move up to the outlet end of the feed hole 8. The intermittent cylinder 10 drives the material separator slider 11 and the material separator 12 to be pulled out of the feed hole 8. The stacked iron cores fall down under the action of gravity. When the bottom iron core falls onto the preparation plate 5, the intermittent cylinder 10 drives the material separator 12 to be inserted between the two bottom iron cores to restrict the iron cores above from falling. The preparation cylinder 4 drives the preparation plate 5 to move the iron cores to the loading position. S2, the lifting cylinder 17 drives the cylinder seat 18 to move the material transfer gripper cylinder 20 upward, and the piston rod of the drive cylinder 21 extends to move the material transfer seat 14 closer to the loading mechanism 2 until the material transfer seat 14 abuts against the proximity switch 24. At this time, the material transfer mechanism 13 is detected to have reached the loading position. The lifting cylinder 17 drives the cylinder seat 18 to move the material transfer gripper cylinder 20 downward and grip the iron core to be tested at the loading position. The piston rod of the drive cylinder 21 retracts to move the material transfer seat 14 away from the loading mechanism 2 until the material transfer seat 14 abuts against another proximity switch 24. At this time, the material transfer mechanism 13 is detected to have reached the detection position. The material transfer gripper cylinder 20 releases the iron core so that the iron core falls on the placement table 28. The material transfer gripper cylinder 20 moves out of the detection position under the drive of the drive cylinder 21. S3, the detection cylinder 29 drives the probe frame 30 to move the iron loss probe 32 downward until the iron loss probe 32 contacts the iron core, and the iron loss detector checks whether the iron core is qualified. In step S3, the high-frequency oscillating current generated by the preamplifier 33 flows into the probe through the cable, generating an alternating magnetic field in the coil at the probe head. When the iron core under test approaches this magnetic field, an induced current is generated. At the same time, the eddy current field also generates an alternating magnetic field in the opposite direction to that of the head coil. Due to its reaction, the amplitude and phase of the high-frequency current in the head coil are changed, that is, the effective impedance of the coil is changed. Thus, the preamplifier 33 obtains the feedback change in the coil impedance and, after signal processing, outputs the measured iron loss value to the digital display 34.

[0037] S4, when the iron core passes inspection, the lifting cylinder 17 drives the cylinder seat 18 to move the material transfer gripper cylinder 20 upward, and the piston rod of the drive cylinder 21 extends to move the material transfer seat 14 towards the feeding mechanism 2 until the material transfer seat 14 abuts against the proximity switch 24. At this time, the material transfer mechanism 13 is detected to have reached the feeding position. The lifting cylinder 17 drives the cylinder seat 18 to move the material transfer gripper cylinder 20 downward and clamps the iron core to be tested at the feeding position and the qualified iron core at the testing position. The piston rod of the drive cylinder 21 retracts to move the material transfer seat 14 away from the feeding mechanism 2 until the material transfer seat 14 abuts against the other... When a proximity switch 24 is activated, the transfer gripper cylinder 20 releases the iron core, and the iron core to be tested falls onto the placement table 28. The qualified iron core falls onto the qualified product conveyor 35, which sends the iron core to the storage position. After the storage gripper cylinder 44 grabs the iron core, the rodless cylinder 42 can drive the storage gripper cylinder 44 to slide along the width direction of the machine base 1, and the horizontal drive component can drive the storage gripper cylinder 44 to slide along the length direction of the machine base 1. Through the cooperation of the rodless cylinder 42 and the horizontal drive component, the storage gripper cylinder 44 can orderly grab the workpiece and put it into the qualified product box 39. S5, When the iron core fails the inspection, the rotary cylinder drives the slide cylinder 55 and the defective product gripper cylinder 56 to rotate so that they are facing the defective iron core. The slide cylinder 55 drives the defective product gripper cylinder 56 to extend and grab the defective iron core. Then, the slide cylinder 55 drives the defective product gripper cylinder 56 to retract. Then, the rotary cylinder drives the slide cylinder 55 and the defective product gripper cylinder 56 to rotate until the defective product gripper cylinder 56 moves the grabbed defective iron core to above the defective product box 51. The defective product gripper cylinder 56 releases the defective iron core, and the defective iron core falls into the defective product box 51.

[0038] The beneficial effects of this iron core iron loss detection equipment are: 1. Significantly reduce labor load: Through the fully automated design of the entire process of feeding, transferring, testing, sorting and storing, it replaces repetitive tasks such as manually bending over to pick up materials, manually applying pressure for testing, and manually sorting and storing, completely solving the problems of high labor load and easy to cause lumbar muscle strain and hand joint damage in traditional testing methods, and improving work safety and comfort.

[0039] 2. Improved testing efficiency and consistency: The automated mechanism enables continuous feeding, rapid material transfer, and accurate testing of iron cores, avoiding problems such as inconsistent rhythm and operational errors caused by manual operation, thus significantly improving testing efficiency.

[0040] 3. Automated sorting and orderly storage of iron cores: Through the cooperation of qualified product conveyor 35, storage mechanism 40 and unqualified product unloading mechanism 52, qualified and unqualified iron cores are automatically sorted, transferred and stored. This not only saves manual sorting time, but also avoids messy accumulation, bumping and damage to iron cores during storage, thus improving product storage quality and management convenience.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A core iron loss detection apparatus comprising a base (1), characterized by, The machine base (1) is provided with a feeding mechanism (2), a material moving mechanism (13) and a detection mechanism (25); The feeding mechanism (2) comprises a feeding seat (3) arranged on the machine base (1), a standby cylinder (4) arranged on the feeding seat (3), a standby plate (5) arranged on the piston rod of the standby cylinder (4), a feeding frame (6) arranged on the feeding seat (3), a feeding cylinder (7) arranged vertically on the feeding frame (6), a feeding hole (8) sequentially penetrating the feeding cylinder (7) and the feeding frame (6) and located above the standby plate (5) on the top surface of the feeding cylinder (7), a side opening (9) penetratingly arranged on the side wall of the feeding frame (6) and communicating with the feeding hole (8), an intermittent cylinder (10) arranged on the feeding frame (6), a material separation slider (11) arranged on the piston rod of the intermittent cylinder (10) and slidingly matched with the side opening (9), and a material separation piece (12) arranged on the end face of the material separation slider (11) away from the intermittent cylinder (10). The material moving mechanism (13) comprises a material moving seat (14) slidingly arranged on the machine base (1), a plurality of lifting guide rods (15) vertically arranged on the machine base (1), a lifting cylinder (17) arranged on the material moving seat (14), a cylinder seat (18) arranged on the piston rod of the lifting cylinder (17) and slidingly matched with the lifting guide rods (15), a plurality of material moving clamp cylinder (20) arranged on the cylinder seat (18), and a driving assembly driving the material moving seat (14) to slide. The detection mechanism (25) comprises a detection seat (26) arranged on the machine base (1) and having a seat cavity (27), an iron loss detector, a placement table (28) arranged on the bottom wall of the seat cavity (27), a detection cylinder (29) arranged on the top surface of the detection seat (26), a probe frame (30) connected to the piston rod of the detection cylinder (29) after penetrating the detection seat (26), and the iron loss detector comprising an iron loss probe (32), a preamplifier (33) and a digital display (34), the iron loss probe (32) being arranged on the probe frame (30), the iron loss probe (32) being electrically connected with the preamplifier (33), and the preamplifier (33) being electrically connected with the digital display (34).

2. The core loss detection apparatus according to claim 1, wherein The driving assembly comprises a driving cylinder (21) arranged on the top surface of the machine base (1) and a connecting plate (22) arranged on the piston rod of the driving cylinder (21) and connected with the material moving seat (14).

3. The core loss detection apparatus according to claim 1, characterized by A plurality of proximity switch assemblies are arranged on the top surface of the machine base (1) and located on both sides of the material moving seat (14), each proximity switch assembly comprising a switch frame (23) arranged on the top surface of the machine base (1) and a proximity switch (24) arranged on the switch frame (23).

4. The core loss detection apparatus according to claim 1, characterized by The probe frame (30) comprises an upper plate (301), a connecting rod (302) and a lower plate (303), the top surface of the upper plate (301) is connected with the piston rod of the detection cylinder (29), the connecting rod (302) connects the upper plate (301) and the lower plate (303), and the iron loss probe (32) is threadedly connected at the center of the lower plate (303).

5. The core loss detection apparatus according to claim 1, characterized by The top surface of the base (1) is provided with a qualified product conveyor (35) for conveying the cores to the storage position.

6. The core loss detection apparatus according to claim 5, characterized by The top surface of the base (1) is provided with a seat groove (36), the side wall of the base (1) is provided with a plurality of linear sliding grooves (37) in communication with the seat groove (36), the bottom wall of the seat groove (36) is provided with a box groove (38), the qualified product box (39) is slidably arranged in the box groove (38), the rack is provided with a storage mechanism (40), the storage mechanism (40) comprises a linear sliding block (41) slidably arranged in the linear sliding groove (37), a rodless cylinder (42) is arranged between adjacent linear sliding blocks (41), a cylinder frame (43) is arranged on the piston rod of the rodless cylinder (42), a storage clamp cylinder (44) is arranged on the cylinder frame (43), and the base (1) is provided with a flat drive assembly for driving the linear sliding block (41) to reciprocatingly move along the linear sliding groove (37).

7. The core loss detection apparatus according to claim 6, characterized by The flat drive assembly comprises a nut (46), a lead screw (47) and a drive motor (49), the nut (46) is arranged on the linear sliding block (41), the lead screw (47) penetrates through the linear sliding groove (37) and forms a lead screw (47) structure with the nut (46), and the drive motor (49) is arranged on the side wall of the base (1) and the output shaft is coaxially connected with the lead screw (47).

8. The core loss detection apparatus according to claim 1, characterized by The rack is provided with an unqualified product discharging mechanism (52), the unqualified product discharging mechanism (52) comprises a rotary motor (53), the rotary motor (53) is arranged on the top wall of the inner cavity of the base (1), the motor shaft of the rotary motor (53) penetrates through the base (1) and is provided with a cylinder plate (54), the top surface of the cylinder plate (54) is provided with a sliding table cylinder (55), and the piston rod of the sliding table cylinder (55) is provided with an unqualified product clamp cylinder (56).

9. The core loss detection apparatus according to claim 8, characterized by The top surface of the base (1) is provided with a plurality of box frames (50), and the top surface of each box frame (50) is provided with an unqualified product box (51).

10. A method of detecting applied to the iron core loss detection apparatus according to any one of claims 1 to 9, characterized by, The detection method comprises the following steps: S1, the cores are stacked in the feeding hole (8) in sequence, the standby material cylinder (4) drives the standby material plate (5) to ascend to the outlet end of the feeding hole (8), the intermittent cylinder (10) drives the material separation sliding block (11) and the material separation piece (12) to withdraw from the feeding hole (8), the stacked cores fall downward under the action of gravity, when the bottom core falls on the standby material plate (5), the intermittent cylinder (10) drives the material separation piece (12) to insert between the two bottom cores, the upper core is limited to fall, and the standby material cylinder (4) drives the standby material plate (5) to drive the core to reach the feeding position. S2, the lifting cylinder (17) drives the cylinder base (18) to drive the material moving clamp cylinder (20) to go up, the piston rod of the drive cylinder (21) extends to drive the material moving base (14) to move to the direction close to the feeding mechanism (2), until the material moving base (14) abuts against the proximity switch (24), at this time, the material moving mechanism (13) is detected to reach the feeding position, the lifting cylinder (17) drives the cylinder base (18) to drive the material moving clamp cylinder (20) to go down and clamp the iron core to be detected at the feeding position, the piston rod of the drive cylinder (21) retracts to drive the material moving base (14) to move to the direction away from the feeding mechanism (2), until the material moving base (14) abuts against another proximity switch (24), at this time, the material moving mechanism (13) is detected to reach the detection position, the material moving clamp cylinder (20) releases the iron core so that the iron core falls on the placement table (28), the material moving clamp cylinder (20) moves out of the detection position under the drive of the drive cylinder (21); S3, the detection cylinder (29) drives the probe holder (30) to drive the iron loss probe (32) to go down, until the iron loss probe (32) contacts the iron core, the iron loss detector detects whether the iron core is qualified; S4, when the iron core detection is qualified, the lifting cylinder (17) drives the cylinder base (18) to drive the material moving clamp cylinder (20) to go up, the piston rod of the drive cylinder (21) extends to drive the material moving base (14) to move to the direction close to the feeding mechanism (2), until the material moving base (14) abuts against the proximity switch (24), at this time, the material moving mechanism (13) is detected to reach the feeding position, the lifting cylinder (17) drives the cylinder base (18) to drive the material moving clamp cylinder (20) to go down and clamp the iron core to be detected at the feeding position and the qualified iron core at the detection position, the piston rod of the drive cylinder (21) retracts to drive the material moving base (14) to move to the direction away from the feeding mechanism (2), until the material moving base (14) abuts against another proximity switch (24), the material moving clamp cylinder (20) releases the iron core, the iron core to be detected falls on the placement table (28), the qualified iron core falls on the qualified product conveyor (35), the qualified product conveyor (35) sends the iron core to the storage position, after the storage clamp cylinder (44) grabs the iron core, the rodless cylinder (42) can drive the storage clamp cylinder (44) to slide along the width direction of the machine base (1), the flat drive assembly can drive the storage clamp cylinder (44) to slide along the length direction of the machine base (1), through the cooperation of the rodless cylinder (42) and the flat drive assembly, the storage clamp cylinder (44) can orderly grab and put the workpiece into the qualified product box (39); S5, when the core detection is unqualified, the rotary cylinder drives the sliding table cylinder (55) and the unqualified product clamp cylinder (56) to rotate to the unqualified core, the sliding table cylinder (55) drives the unqualified product clamp cylinder (56) to extend and grab the unqualified core, then the sliding table cylinder (55) drives the unqualified product clamp cylinder (56) to retract, and then the rotary cylinder drives the sliding table cylinder (55) and the unqualified product clamp cylinder (56) to rotate until the unqualified product clamp cylinder (56) moves the grabbed unqualified core to above the unqualified product box (51), the unqualified product clamp cylinder (56) releases the unqualified core, and the unqualified core falls into the unqualified product box (51).

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