Stator core processing production line and control method thereof

Abstract

The application discloses a kind of production equipment of stator core, to provide a kind of stator core processing production line and its control method with high degree of automation, can be corresponding thickness of stator core is grabbed once, and can be detected to oil hole and the thickness of iron core simultaneously when production, its technical scheme main points are by flow transfer table on transmission frame moves and through each processing station, the feeding of corresponding thickness of stator core, the penetration detection of stator core oil hole, the thickness detection of stator core and the control of stator core's plus-minus piece are realized, the automatic production of stator core is realized, piece feeding device can realize the transfer of iron core, the thickness of the transferred iron core can be adjusted by adjusting the depth of material taking groove, the overall processing efficiency is high, can real-time synchronous detection iron core thickness and iron core quality, the efficiency of overall production is high, substantially reduces the cost of labor and the unqualified rate of product, the application is suitable for stator processing technical field.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of production equipment of stator core, more specifically, it relates to a kind of stator core processing production line and control method. BACKGROUND

[0002] The core of stator or rotor is formed by stacking several steel sheets of the same thickness, then the core is fixed on the mandrel, and finally the winding or magnet or conductor is arranged in the slot of the core. In addition to the opening for mounting the mandrel, the core also includes oil holes for cooling oil. The core generates iron loss during operation, which is converted into heat. By providing oil holes in the core, a passage is provided for cooling oil to pass through the inside of the core stack, allowing heat to be more effectively transferred to the cooling oil, enhancing heat dissipation efficiency. The design of the oil hole is a key heat dissipation and loss suppression technology for the core, which provides a flow channel for the cooling oil to penetrate the inside of the core, carries away the heat generated by the core loss, and effectively suppresses harmful local eddy current loss caused by local damage to the stack insulation, preventing local overheating. At the same time, when making the stator core, the height of the core needs to be controlled by stacking different number of steel sheets to obtain a stator core of corresponding thickness.

[0003] Currently, when stacking the stator core, manual feeding of steel sheets is usually used, so that the worker can manually adjust the number and shape of the stacked steel sheets based on the size of the rotor. During stacking, the corresponding number of steel sheets needs to be manually selected and placed in the device. However, the stacked steel sheets are heavy and difficult to move for the worker, resulting in low production efficiency. The existing steel sheet stacking equipment on the market usually takes one piece at a time, which is slow. In addition, the thickness of the stator core cannot be detected during subsequent processing, which cannot guarantee the thickness of the stator core. Furthermore, the oil hole of the stator core cannot be detected during processing, which cannot judge the oil hole of the stator core in real time, and cannot realize the continuous connection of each process. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a stator core processing production line with high automation, which can grasp the corresponding thickness of the stator core at one time and detect the oil hole and the thickness of the stator core simultaneously during production.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a stator core processing production line, comprising a transmission frame and a flow table moving along the length direction of the transmission frame, the flow table being used for placing the stator core, a transmission belt being provided between the flow table and the transmission frame, a sheet taking and feeding device, a parameter detection device, a sheet adding and subtracting device and an oil hole detection device being provided in sequence on the transmission frame.

[0006] The material storage mechanism is arranged on one side of the transmission frame, and the grabbing and transferring mechanism is arranged above the transmission frame.

[0007] The oil hole detection device comprises a detection mechanism arranged on the transmission frame and a material lifting mechanism arranged at the bottom of the transmission frame.

[0008] The parameter detection device comprises a height detection mechanism arranged above the transmission belt and a quality detection mechanism arranged on the transmission belt.

[0009] The adding and subtracting device comprises a sheet storage mechanism arranged on one side of the transmission frame and a material moving structure arranged between the sheet storage mechanism and the transmission frame.

[0010] Preferably, the material storage mechanism comprises a rotating disc and a plurality of material racks arranged on the rotating disc, the material racks are used for placing the stator cores, the bottom of the material rack is provided with a material lifting plate sliding along the height direction thereof, one side of the rotating disc is further provided with a lifting frame, the lifting frame is provided with a supporting plate, and the grabbing and transferring mechanism comprises a sliding frame and a grabbing assembly arranged on the sliding frame.

[0011] Preferably, the grabbing assembly comprises a grabbing plate, a material taking groove arranged on the grabbing plate, and a plurality of fixed air cylinders arranged along the circumferential direction of the material taking groove, and the depth of the material taking groove is adjustable.

[0012] Preferably, the material lifting mechanism comprises a lifting air cylinder arranged at the bottom of the transmission frame, a bottom plate arranged on the lifting air cylinder, a plurality of detection rods arranged on the bottom plate, and a mounting plate arranged at the upper end of the bottom plate, a buffer spring is further arranged between the mounting plate and the bottom plate, the mounting plate is configured to accommodate a flow table, the detection mechanism comprises a baffle arranged above the mounting plate and an infrared detection device arranged on the baffle, and an opening is further arranged on the baffle.

[0013] Preferably, a plurality of through holes are arranged in the mounting plate and the flow table, the positions of the through holes match the positions of the detection rods, and the baffle is configured to allow the stator core to pass through and block the flow table.

[0014] Preferably, the height detection mechanism comprises a material pressing air cylinder arranged above the transmission frame, a material pressing assembly arranged at the lower end of the material pressing air cylinder, and a displacement sensor arranged on the material pressing assembly, and the quality detection mechanism comprises a servo motor arranged on the material pressing air cylinder and a pressure detector arranged in the transmission frame.

[0015] Preferably, the pressing assembly comprises a fixed plate, a first abutting end face arranged on the fixed plate, and a second abutting end face arranged in the first abutting end face, a compression spring is arranged between the first abutting end face and the fixed plate, the height of the first abutting end face is greater than the height of the second abutting end face, and the inner diameter of the first abutting end face is greater than the outer diameter of the stator core.

[0016] The application further provides that the sheet storage mechanism comprises a mounting table, a driving motor arranged at the bottom of the mounting table, a material cylinder arranged on the mounting table, and a driving plate arranged on the material cylinder, a plurality of adjusting members are arranged on the driving plate, the adjusting members are configured to move in the axial direction of the driving plate, each adjusting member cooperatively forms a limiting groove for mounting the stator core, and the material moving structure comprises a support, a support plate arranged on the support, and a material suction assembly arranged on the support plate.

[0017] The application also provides a control method of a stator core processing production line, comprising the following steps: S1, moving the flow table on the transmission frame and stopping at a position corresponding to the feeding device;

[0018] S2, adjusting the material taking groove depth of the grabbing and transferring mechanism according to the thickness L0 of the core to be clamped, so that the depth of the material taking groove is the same as the thickness of the core to be clamped;

[0019] S3, the lifting frame pushes the material top plate to move upwards and drives the stator core in the material rack to move;

[0020] S4, after the stator core moves to a specified height, the grabbing assembly moves along the sliding frame and grabs the stator core with a corresponding thickness to the flow table;

[0021] S5, the flow table continues to move on the transmission frame and stops at a position corresponding to the oil hole detection device;

[0022] S6, the lifting cylinder of the material lifting mechanism drives the bottom plate, the mounting plate and the flow table to rise and move towards the detection mechanism;

[0023] S7, when the flow table moves to the opening of the detection mechanism, the stator core passes through the detection groove body, at the same time, the flow table abuts against the baffle, the material lifting mechanism continues to move, the flow table and the mounting plate move towards the bottom plate under the action of the buffer spring, and the detection rod passes through the through hole of the mounting plate and the flow table and enters the oil hole of the core;

[0024] S8, the infrared detection device detects whether an infrared signal is sensed, if yes, it is judged that all the oil holes of the current stator core are unblocked, the core is qualified, and the detection continues to S9, otherwise, it is judged that the oil holes of the current core are blocked, the detection rod lifts the core and blocks the infrared rays, the device stops working and notifies the staff to maintain;

[0025] S9, the flow transfer table continues to move on the transmission frame and stops at a position corresponding to the parameter detection device;

[0026] S10, the pressure cylinder drives the pressure assembly to move towards the flow transfer table, and the servo motor detects the torque, and the detection value is Ta;

[0027] S11, the torque detection threshold of the servo motor is set to T1 and T2, if Ta = T1, it is judged that the first contact surface is in contact with the flow transfer table, and the displacement sensor starts to detect, otherwise, if Ta < T1, it is judged that the current first contact surface is not in contact with the flow transfer table, and the pressure assembly continues to move;

[0028] S12, the servo motor continues to detect the torque, and the detection result is Tb, if Tb < T2, it is judged that the second contact surface is not in contact with the stator core, and the pressure assembly continues to move, otherwise, if Tb = T2, it is judged that the current second contact surface is in contact with the flow transfer table, and the displacement sensor stops moving;

[0029] S13, the moving distance L of the displacement sensor is detected, if L = L0, it is judged that the thickness of the current stator core is the same as the required thickness of the stator core, and the current stator core is recorded as qualified, if L < L0, it is judged that the thickness of the current stator core is smaller, and the current stator core is recorded as lacking material, if L > L0, it is judged that the thickness of the current stator core is larger, and the current stator core is recorded as having too much material;

[0030] S14, the flow transfer table continues to move on the transmission frame and stops at a position corresponding to the sheet adding / subtracting device;

[0031] S15, the sheet adding / subtracting device continues to detect the thickness state of the stator core, and controls the sheet adding / subtracting of the stator core, if it is detected that the current stator core lacks material, the material in the storage mechanism is placed on the stator core based on the amount of lacking material, otherwise, if it is detected that the current stator core has too much material, the material on the stator core is placed back into the storage mechanism based on the amount of excess material, and the processing of the stator core is completed.

[0032] Preferably, the step S10 further comprises quality detection of the stator core, comprising the following steps: S101, recording the mass of the current flow transfer table as P0, when the flow transfer table is located at the parameter detection device, the pressure detector detects the pressure received thereby, and the detection value is P;

[0033] S102, based on the required thickness and material of the stator core, the mass data Pd of the current stator core is obtained, if P-P0 = Pd, it is judged that the thickness of the current stator core is normal, otherwise, if P-P0 < Pd, it is judged that the current stator core lacks material, and if P-P0 > Pd, it is judged that the current stator core has too much material.

[0034] By adopting the technical scheme, the beneficial effects are: 1. The application realizes the feeding of the stator core with corresponding thickness, the detection of the oil hole penetration of the stator core, the thickness detection of the stator core, and the control of the addition and subtraction of the stator core by moving the flow table on the transmission frame and passing through each processing station, realizes the automatic production of the stator core, specifically, the piece taking and feeding device in the application can realize the transfer of the core at one time, the thickness of the transferred core can be adjusted by adjusting the depth of the material taking groove, the overall processing efficiency is high, the degree of automation is high, at the same time, the oil hole detection device adopts a lifting mechanism and infrared detection linkage, and the oil hole penetration online judgment is completed synchronously during the flow process, avoiding the heat dissipation failure caused by the cooling oil channel blockage, and the application can realize real-time synchronous detection of the thickness and quality of the core through the height detection mechanism and the quality detection mechanism, ensure the precision of the stator core, and can automatically increase or decrease the steel sheet based on the detection result after the detection is completed and cooperate with the addition and subtraction device, the overall production efficiency is high, and the cost of labor and the unqualified rate of products are greatly reduced.

[0035] 2. Further, for the material storage mechanism, the material storage mechanism comprises a rotating disc and a plurality of material racks arranged on the rotating disc, each of the material racks is provided with a core material, when the material of one of the material racks is insufficient, the corresponding material rack can be switched by the rotating disc to complete the replenishment of the material, ensuring continuous feeding during the feeding process, the lifting of the material can be realized by the material lifting plate driven by the material lifting plate, ensuring that the core is always located on the same horizontal plane during the lifting and grabbing process, and the detection structure is arranged at the fixed height position of the lifting frame, so that the material is clamped after reaching the specified position, the grabbing assembly comprises a grabbing plate, a material taking groove arranged on the grabbing plate, and a plurality of fixed air cylinders arranged along the circumferential direction of the material taking groove, the fixed air cylinders cooperate to realize the clamping of the core in the grabbing assembly and realize stable holding force, prevent the deformation or falling of the stator core, and the depth of the material taking groove is adjustable, so that the grabbing assembly can adapt to different specifications of the stator core, improving the versatility and adaptability of the device.

[0036] 3、Meanwhile, the oil hole detection device of the application is provided with a mounting plate arranged above the bottom plate and a buffer spring, when the mounting plate is not under pressure or is only under the gravity of the stator core and the rotating table, the detection rod is retracted, when the lifting cylinder of the lifting mechanism drives the bottom plate to rise, the detection rod is inserted into the oil hole of the stator core, when the oil hole of the stator core is blocked so that the detection rod cannot penetrate, the core is lifted and blocks the light path of the infrared detection device, triggering an alarm, the oil hole detection device of the application can be designed elastically by the lifting mechanism, so that the detection rod is in a retracted state in the rotating table when the mounting plate is not under pressure, and will not be exposed outside the through hole, when the lifting cylinder continuously lifts the bottom plate, the mounting plate and the rotating table reach the detection mechanism, because the opening of the baffle is configured to pass the stator core and block the rotating table, when the core is normally placed on the rotating table, the infrared detection device is not blocked, the lifting assembly continues to move, the mounting plate is attached to the bottom plate under the action of the baffle of the detection mechanism, the detection rod on the bottom plate penetrates through the through hole and enters the oil hole of the core, if the oil hole of the core is blocked, the detection rod lifts the core and blocks the signal of the infrared detection device, completing the automatic detection of the core, after the detection is completed, the lifting assembly retreats to complete the reset, the whole process is simple.

[0037] 4、Further, the height detection device of the application detects the thickness data of the stator core through the first contact end face, the second contact end face and the displacement sensor, specifically, the first contact end face can be in contact with the upper end face of the rotating table on which the stator core is arranged, and the contact state of the first contact end face is detected by the torque T1 of the servo motor, the displacement sensor detects after T1 is detected, the pressing cylinder continues to drive, the first contact end face is retracted under the action of the compression spring, ensuring that the second contact end face continues to move downward, the second contact end face is used to contact the upper end face of the stator core, when the second contact end face contacts the upper end face of the stator core, the torque detection value of the servo motor is T2, the displacement sensor stops detecting, at this time, the moving distance of the first contact end face is the thickness data of the stator core, by comparing the detection value of the displacement sensor with the set thickness of the stator core, if the detection value < the set thickness, it is judged that there is a piece missing, if the detection value > the set thickness, it is judged that there are too many pieces, at the same time, the pressure detector can cross verify the detection result of the displacement sensor by comparing the weight of the core with the theoretical mass, preventing misjudgment of the displacement sensor and improving the detection accuracy, further, the adding and subtracting device can control the material placed on the stator core or taken off from the stator core by the material moving structure to be placed in the storage mechanism according to the detection result of the parameter detection device, the adjusting member radially movable is arranged in the barrel of the storage mechanism, forming a limiting groove matched with the stator core, so that the stator core with missing or excessive material can be automatically adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1A specific structure diagram of an embodiment of the stator core processing production line and the control method thereof;

[0039] Figure 2 A specific structure diagram of a piece taking and feeding device of an embodiment of the stator core processing production line and the control method thereof;

[0040] Figure 3 A specific structure diagram of a flow table and a material ejecting mechanism of an embodiment of the stator core processing production line and the control method thereof;

[0041] Figure 4 A sectional view of the flow table and the material ejecting mechanism of an embodiment of the stator core processing production line and the control method thereof;

[0042] Figure 5 A specific structure diagram of a parameter detection device of an embodiment of the stator core processing production line and the control method thereof;

[0043] Figure 6 A specific structure diagram of a material pressing assembly of an embodiment of the stator core processing production line and the control method thereof

[0044] Figure 7 A specific structure diagram of a piece storing mechanism of an embodiment of the stator core processing production line and the control method thereof;

[0045] Figure 8 A specific structure diagram of a material moving structure of an embodiment of the stator core processing production line and the control method thereof;

[0046] Figure 9 A first part of a control method flow chart of an embodiment of the stator core processing production line and the control method thereof;

[0047] Figure 10 A second part of a control method flow chart of an embodiment of the stator core processing production line and the control method thereof;

[0048] Figure 11 A core quality detection method flow chart of an embodiment of the stator core processing production line and the control method thereof;

[0049] Fig. 1: transmission frame; 2: flow table; 3: transmission belt; 4: slice taking and feeding device; 41: material storage mechanism; 411: rotating disc; 412: material placing frame; 413: material top plate; 414: lifting frame; 415: supporting plate; 42: grabbing and transferring mechanism; 421: sliding frame; 422: grabbing plate; 423: fixed air cylinder; 5: parameter detection device; 51: height detection mechanism; 511: material pressing air cylinder; 512: displacement sensor; 513: fixed plate; 514: first abutting end face; 515: second abutting end face; 52: quality detection mechanism; 521: servo motor; 522: pressure detector; 6: slice adding and subtracting device; 61: slice storage mechanism; 611: mounting table; 612: driving motor; 613: material cylinder; 614: driving plate; 615: adjusting piece; 616: limiting groove; 62: material moving mechanism; 621: support; 622: support plate; 623: suction disc frame; 624: material taking suction disc; 7: oil hole detection device; 71: detection mechanism; 711: baffle; 712: infrared detection device; 713: opening; 72: material lifting mechanism; 721: lifting air cylinder; 722: bottom plate; 723: detection rod; 724: mounting plate; 725: buffer spring; 8: through hole. DETAILED DESCRIPTION

[0050] REFERENCE Figures 1 to 11 Further description is made to the embodiment of the stator core processing production line and the control method thereof.

[0051] For ease of description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or located in any other orientation) and the spatially relative terms used herein interpreted accordingly.

[0052] Moreover, relative terms such as "first" and "second" are used herein solely to distinguish one from another entity of the same type, for convenience, and do not necessarily require or imply any such actual relationship or order between such entities.

[0053] A stator core processing production line, comprising a transmission frame 1 and a flow table 2 arranged on the transmission frame 1 and moving along the length direction of the transmission frame 1, the flow table 2 is used for placing the stator core, a transmission belt 3 is arranged between the flow table and the transmission frame 1, and a piece taking and feeding device 4, a parameter detection device 5, a piece adding and subtracting device 6 and an oil hole detection device 7 are sequentially arranged on the transmission frame 1.

[0054] The piece taking and feeding device 4 comprises a material storage mechanism 41 arranged on one side of the transmission frame 1 and a grabbing and transferring mechanism 42 arranged above the transmission frame 1.

[0055] The oil hole detection device 7 comprises a detection mechanism 71 arranged on the transmission frame 1 and a material lifting mechanism 72 arranged at the bottom of the transmission frame 1.

[0056] The parameter detection device 5 comprises a height detection mechanism 51 arranged above the transmission belt 3 and a quality detection mechanism 52 arranged on the transmission belt 3.

[0057] The piece adding and subtracting device 6 comprises a piece storage mechanism 61 arranged on one side of the transmission frame 1 and a material moving structure arranged between the piece storage mechanism 61 and the transmission frame 1.

[0058] The material storage mechanism 41 comprises a rotating disc 411 and a plurality of material placing racks 412 arranged on the rotating disc 411, the material placing racks 412 are used for placing the stator core, a material lifting plate 413 is arranged at the bottom of the material placing rack 412 and slides along the height direction of the material placing rack 412, a lifting frame 414 is further arranged on one side of the rotating disc 411, a supporting plate 415 is arranged on the lifting frame 414, and the grabbing and transferring mechanism 42 comprises a sliding frame 421 and a grabbing assembly arranged on the sliding frame 421.

[0059] Preferably, the grabbing assembly comprises a grabbing plate 422, a material taking groove arranged on the grabbing plate 422 and a plurality of fixed air cylinders 423 arranged along the circumferential direction of the material taking groove, and the depth of the material taking groove is adjustable.

[0060] The material lifting mechanism 72 comprises a lifting air cylinder 721 arranged at the bottom of the transmission frame 1, a bottom plate 722 arranged on the lifting air cylinder 721, a plurality of detection rods 723 arranged on the bottom plate 722 and a mounting plate 724 arranged at the upper end of the bottom plate 722, a buffer spring 725 is further arranged between the mounting plate 724 and the bottom plate 722, the mounting plate 724 is configured to accommodate the flow table 2, the detection mechanism 71 comprises a baffle 711 arranged above the mounting plate 724 and an infrared detection device 712 arranged on the baffle 711, and an opening 713 is further arranged on the baffle 711.

[0061] Preferably, the mounting plate 724 is provided with a plurality of through holes 8, which are matched with the positions of the detection rods 723, and the baffle 711 is configured to allow the stator core to pass through and block the flow turntable 2.

[0062] The height detection mechanism 51 comprises a pressing cylinder 511 arranged above the transmission frame 1, a pressing assembly arranged at the lower end of the pressing cylinder 511, and a displacement sensor 512 arranged on the pressing assembly, and the quality detection mechanism 52 comprises a servo motor 521 arranged on the pressing cylinder 511 and a pressure detector 522 arranged in the transmission frame 1.

[0063] Preferably, the pressing assembly comprises a fixed plate 513, a first abutting end face 514 arranged on the fixed plate 513, and a second abutting end face 515 arranged in the first abutting end face 514, and the first abutting end face 514 is provided with a compression spring between the fixed plate 513, the height of the first abutting end face 514 is greater than the height of the second abutting end face 515, and the inner diameter of the first abutting end face is greater than the outer diameter of the stator core.

[0064] The sheet storage mechanism 61 comprises a mounting table 611, a drive motor 612 arranged at the bottom of the mounting table 611, a material cylinder 613 arranged on the mounting table 611, and a drive plate 614 arranged on the material cylinder 613, and the drive plate 614 is provided with a plurality of adjusting members 615, which are configured to move in the axial direction of the drive plate 614, and each adjusting member 615 cooperates to form a limiting groove 616 for mounting the stator core, and the material moving structure comprises a support 621, a support plate 622 arranged on the support 621, and a material suction assembly arranged on the support plate 622, and the material suction assembly comprises a suction disc holder 623 and a material suction disc 624 arranged on the suction disc holder 623.

[0065] The application also provides a control method of a stator core processing production line, comprising the following steps: S1, the flow turntable moves on the transmission frame and stops at a position corresponding to the feeding device;

[0066] S2, according to the thickness L0 of the core to be clamped, the depth of the material suction groove of the grabbing and transferring mechanism is adjusted, so that the depth of the material suction groove is the same as the thickness of the core to be clamped;

[0067] S3, the lifting frame pushes the material top plate to move upwards and drives the stator core in the material rack to move;

[0068] S4, after the stator core moves to a specified height, the grabbing assembly moves along the sliding frame and grabs the stator core with a corresponding thickness to the flow turntable;

[0069] S5, the flow transfer table continues to move on the transmission frame and stops at a position corresponding to the oil hole detection device;

[0070] S6, the lifting cylinder of the material lifting mechanism drives the bottom plate, the mounting plate and the flow transfer table to rise and move towards the detection mechanism;

[0071] S7, when the flow transfer table moves to the opening of the detection mechanism, the stator core passes through the detection groove, and the flow transfer table abuts against the baffle, the material lifting mechanism continues to move, and the flow transfer table and the mounting plate move towards the bottom plate under the action of the buffer spring, the detection rod passes through the through hole of the mounting plate and the flow transfer table and enters the oil hole of the core;

[0072] S8, the infrared detection device detects whether an infrared signal is sensed, if yes, it is judged that each oil hole of the current stator core is through, the core is qualified, and the process continues to be detected in S9, otherwise, it is judged that the oil hole of the current core is blocked, the core is lifted by the detection rod and blocks the infrared ray, the device stops working and notifies the staff to maintain;

[0073] S9, the flow transfer table continues to move on the transmission frame and stops at a position corresponding to the parameter detection device;

[0074] S10, the pressure cylinder drives the pressure assembly to move towards the flow transfer table, and the servo motor detects the torque, and the detection value is Ta;

[0075] S11, the torque detection threshold values of the servo motor are set as T1 and T2, if Ta=T1, it is judged that the first abutting surface abuts against the flow transfer table, and the displacement sensor starts to detect, otherwise, if Ta

[0076] S12, the servo motor continues to detect the torque, and the detection result is Tb, if Tb

[0077] S13, the moving distance L of the displacement sensor is detected, if L=L0, it is judged that the thickness of the current stator core is the same as the thickness of the required stator core, and the current stator core is recorded as qualified, if L

[0078] S14, the flow transfer table continues to move on the transmission frame and stops at a position corresponding to the adding and subtracting device;

[0079] S15, the sheet adding and subtracting device continues to detect the thickness state of the stator core, and controls the sheet adding and subtracting of the stator core, if the current stator core is detected to be short of material, the material in the sheet storage mechanism is grabbed by the material moving structure and placed on the stator core based on the amount of the short material, otherwise, if the current stator core is detected to have too much material, the material on the stator core is grabbed by the material moving structure and placed back into the sheet storage mechanism based on the amount of the excess material, and the processing of the stator core is completed.

[0080] Preferably, the step S10 further comprises the quality detection of the stator core, including the following steps: S101, recording the quality of the current flow table as P0, when the flow table is located at the parameter detection device, the pressure detector detects the pressure received by the flow table, and the detection value is P;

[0081] S102, obtaining the quality data Pd of the current stator core based on the thickness and material of the required stator core, if P-P0=Pd, it is judged that the thickness of the current stator core is normal, otherwise, if P-P0

[0082] The present application realizes the feeding of the stator core with corresponding thickness, the penetration detection of the oil hole of the stator core, the thickness detection of the stator core and the sheet adding and subtracting control of the stator core by moving the flow table 2 on the transmission frame 1 and passing through each processing station, realizes the automatic production of the stator core, specifically, the sheet taking and feeding device 4 in the present application can realize the transfer of the stator core at one time, the thickness of the transferred stator core can be adjusted by adjusting the depth of the material taking groove, the overall processing efficiency is high, the degree of automation is high, at the same time, the oil hole detection device 7 adopts the material lifting mechanism 72 and infrared detection linkage, and the online penetration determination of the oil hole is completed synchronously during the flow process, avoiding the heat dissipation failure caused by the blockage of the cooling oil channel, and the present application can realize the real-time synchronous detection of the thickness and quality of the stator core by the height detection mechanism 51 and the quality detection mechanism 52, ensure the precision of the stator core, and can automatically increase or decrease the steel sheet based on the detection result after the detection is completed and cooperates with the sheet adding and subtracting device 6, the overall production efficiency is high, and the cost of labor and the unqualified rate of products are greatly reduced.

[0083] Further, for the material storage mechanism 41, the material storage mechanism 41 comprises a rotating disc 411 and a plurality of material racks 412 arranged on the rotating disc 411, each of the material racks 412 is provided with an iron core material, when one of the material racks 412 is insufficient, the corresponding material rack 412 can be switched by the rotating disc 411 to complete the replenishment of the material, ensuring continuous feeding during the feeding process, and the lifting of the material can be realized by driving the material top plate 413 through the supporting plate 415, ensuring that the iron core is always located on the same horizontal plane during the lifting and grabbing process, and the detection structure arranged at the fixed height position of the lifting frame 414 can make the material be clamped after reaching the specified position, the grabbing assembly comprises a grabbing plate 422, a material taking groove arranged on the grabbing plate 422, and a plurality of fixed air cylinders 423 arranged along the circumferential direction of the material taking groove, the fixed air cylinders 423 cooperate to realize the clamping of the iron core in the grabbing assembly and realize stable holding force to prevent deformation or falling of the stator core, and the depth of the material taking groove is adjustable, which can adapt the grabbing assembly to different specifications of the stator core, improving the versatility and adaptability of the device.

[0084] As an optimization of the above scheme, the material lifting to the corresponding height is realized by infrared detection, and the positioning accuracy can be ensured by arranging two groups of servo motors 521, one of which is arranged at the top of the longitudinal shaft, and the other is arranged at the bottom of the lifting frame 414. Specifically, the servo motor 521 arranged at the top of the longitudinal shaft of the iron core feeding structure is used to drive the grabbing assembly to move to the material storage assembly, when the mounting top plate of the grabbing assembly abuts against the top of the barrel 613 of the material storage assembly, torque detection is performed on the servo motor 521 at the top of the longitudinal shaft, the detection result is Tu, when Tu is less than the set value, the grabbing assembly continues to descend, when Tu is greater than or equal to the set value, it is judged that the grabbing structure is in close contact with the top of the barrel 613, and the positioning of the grabbing structure is completed. The grabbing assembly can intelligently judge whether it abuts against the material storage assembly, and at the same time, it will not produce excessive impact, effectively preventing mechanical collision damage. After confirming that the grabbing structure is in safe contact with the barrel 613, the supporting plate 415 lifts the iron core again, so that the material is pushed into the grabbing structure and fills the material taking groove in the grabbing structure. At this time, the servo motor 521 at the bottom of the material lifting structure monitors the torque Td, when Td is less than the set value, the material continues to be lifted, when Td is greater than or equal to the set value, it is judged that the material is filled in the material taking groove and abuts against the top of the material taking groove, which provides the best position condition for reliable clamping of the pushing cylinder, ensuring the consistency of the thickness of the iron core during clamping. The above-mentioned double judgment mechanism based on torque threshold greatly improves the safety, reliability and success rate of the material taking process, and realizes high-precision and high-efficiency material taking process.

[0085] Meanwhile, the oil hole detection device 7 of the present application is provided with the mounting plate 724 above the bottom plate 722 and the buffer spring 725, when the mounting plate 724 is not under pressure or is only under the gravity of the stator core and the rotating table 2, the detection rod 723 is retracted, when the lifting cylinder 721 of the lifting mechanism 72 drives the bottom plate 722 to rise, the detection rod 723 is inserted into the oil hole of the stator core, when the oil hole of the stator core is blocked so that the detection rod 723 cannot penetrate, the core is lifted and blocks the light path of the infrared detection device 712, triggering the alarm, the oil hole detection device 7 of the present application can be designed elastically by the lifting mechanism 72, so that the detection rod 723 is in a retracted state in the rotating table 2 when the mounting plate 724 is not under pressure, and will not be exposed outside the through hole 8, when the lifting cylinder 721 continuously lifts the bottom plate 722, so that the mounting plate 724 and the rotating table 2 reach the detection mechanism 71, because the opening 713 of the baffle 711 is configured to run the stator core through and block the rotating table 2, when the core is normally placed on the rotating table 2, the infrared detection device 712 is not blocked, the lifting assembly continues to move, the mounting plate 724 is attached to the bottom plate 722 under the action of the baffle 711 of the detection mechanism 71, the detection rod 723 on the bottom plate 722 penetrates through the through hole 8 into the oil hole of the core, if the core oil hole is blocked, the detection rod 723 lifts the core and blocks the signal of the infrared detection device 712, completing the automatic detection of the core, after the detection is completed, the lifting assembly retreats to complete the reset, the whole process is simple.

[0086] And, the height detection device of the application detects the thickness data of the stator core through the first contact end surface 514, the second contact end surface 515 and the displacement sensor 512. Specifically, the first contact end surface 514 can be in contact with the upper end surface of the flow table 2 on which the stator core is installed, and the contact state of the first contact end surface 514 is detected by the torque T1 of the servo motor 521. The displacement sensor 512 detects after T1 is detected, and the pressure cylinder 511 continues to drive. The first contact end surface 514 is retracted under the action of the compression spring, ensuring that the second contact end surface 515 continues to move downward. The second contact end surface 515 is used to contact the upper end surface of the stator core. When the second contact end surface 515 contacts the upper end surface of the stator core, the torque detection value of the servo motor 521 is T2, and the displacement sensor 512 stops detecting. At this time, the movement distance of the first contact end surface 514 is the thickness data of the stator core. By comparing the detection value of the displacement sensor 512 with the set thickness of the stator core, if the detection value < the set thickness, it is judged that the piece is missing, and if the detection value > the set thickness, it is judged that the piece is too much. At the same time, the pressure detector 522 can cross verify the detection result of the displacement sensor 512 by comparing the weight of the core with the theoretical mass, to prevent misjudgment of the displacement sensor 512 and improve the detection accuracy. Further, the adding and subtracting piece device 6 can control the material at the material grabbing mechanism 61 of the material moving structure to be placed on the stator core or taken off the stator core and placed back into the material grabbing mechanism 61 according to the detection result of the parameter detection device 5. The material cylinder 613 of the material grabbing mechanism 61 is provided with an adjustable member 615 that can move radially, forming a limiting groove 616 matched with the stator core, so that the stator core with missing or excessive material can be automatically adjusted.

[0087] The above only describes the preferred embodiments of the application and is not intended to limit the application. Any changes and substitutions within the technical scheme of the application made by those skilled in the art should be included in the protection scope of the application.

Claims

1. A stator core processing production line, comprising a transmission frame (1) and a transfer table (2) disposed on the transmission frame (1) and moving along the length of the transmission frame (1), the transfer table (2) being used to place the stator core, and a transmission belt (3) being provided between the transfer table (2) and the transmission frame (1), characterized in that, The transmission frame (1) is sequentially equipped with a sheet feeding device (4), a parameter detection device (5), a sheet adding / reducing device (6), and an oil hole detection device (7); The feeding device (4) includes a material storage mechanism (41) disposed on one side of the transmission frame (1) and a gripping and transferring mechanism (42) disposed above the transmission frame (1); The oil hole detection device (7) includes a detection mechanism (71) mounted on the transmission frame (1) and a top material mechanism (72) mounted at the bottom of the transmission frame (1); The parameter detection device (5) includes a height detection mechanism (51) disposed above the transmission belt (3) and a mass detection mechanism (52) disposed on the transmission belt (3); The addition / reduction device (6) includes a storage mechanism (61) disposed on one side of the transmission frame (1) and a transfer structure disposed between the storage mechanism (61) and the transmission frame (1); The top material mechanism (72) includes a lifting cylinder (721) disposed at the bottom of the transmission frame (1), a base plate (722) disposed on the lifting cylinder (721), a plurality of detection rods (723) disposed on the base plate (722), and a mounting plate (724) disposed at the upper end of the base plate (722). A buffer spring (725) is also provided between the mounting plate (724) and the base plate (722). The mounting plate (724) is configured to place the transfer table (2). The detection mechanism (71) includes a baffle (711) disposed above the mounting plate (724) and an infrared detection device (712) disposed on the baffle (711). An opening (713) is also provided on the baffle (711). The mounting plate (724) and the transfer table (2) are both provided with several through holes (8). The position of the through holes (8) matches the position of the detection rod (723). The baffle (711) is configured to allow the stator core to pass through and block the transfer table (2).

2. The stator core processing production line according to claim 1, characterized in that, The material storage mechanism (41) includes a rotating disk (411) and a plurality of material racks (412) disposed on the rotating disk (411). The material racks (412) are used to place stator cores. The bottom of the material racks (412) is provided with a material top plate (413) that slides along its height direction. A lifting frame (414) is also provided on one side of the rotating disk (411). A support plate (415) is provided on the lifting frame (414). The gripping and transferring mechanism (42) includes a sliding frame (421) and a gripping component disposed on the sliding frame (421).

3. The stator core processing production line according to claim 2, characterized in that, The gripping assembly includes a gripping plate (422), a material trough disposed on the gripping plate (422), and a plurality of fixed cylinders (423) disposed along the circumferential direction of the material trough. The depth of the material trough is adjustable.

4. The stator core processing production line according to claim 1, characterized in that, The height detection mechanism (51) includes a pressing cylinder (511) disposed above the transmission frame (1), a pressing assembly disposed at the lower end of the pressing cylinder (511), and a displacement sensor (512) disposed on the pressing assembly. The quality detection mechanism (52) includes a servo motor (521) disposed on the pressing cylinder (511) and a pressure detector (522) disposed inside the transmission frame (1).

5. A stator core processing production line according to claim 4, characterized in that, The pressing assembly includes a fixed plate (513), a first contact end face (514) disposed on the fixed plate (513), and a second contact end face (515) disposed within the first contact end face (514). A compression spring is provided between the first contact end face (514) and the fixed plate (513). The height of the first contact end face (514) is greater than the height of the second contact end face (515), and the inner diameter of the first contact end face (514) is greater than the outer diameter of the stator core.

6. The stator core processing production line according to claim 1, characterized in that, The wafer storage mechanism (61) includes a mounting platform (611), a drive motor (612) disposed at the bottom of the mounting platform (611), a material cylinder (613) disposed on the mounting platform (611), and a drive plate (614) disposed on the material cylinder (613). The drive plate (614) is provided with a plurality of adjusting members (615). The adjusting members (615) are configured to move along the axial direction of the drive plate (614). Each of the adjusting members (615) cooperates to form a limiting groove (616) for installing the stator core. The material transfer structure includes a bracket (621), a support plate (622) disposed on the bracket (621), and a suction assembly disposed on the support plate (622). The suction assembly includes a suction cup frame (623) and a material picking suction cup (624) disposed on the suction cup frame (623).

7. A control method applicable to a stator core processing production line according to any one of claims 1-6, characterized in that, Includes the following steps: S1. The turntable moves on the transmission frame and stops at the position corresponding to the feeding device; S2. Adjust the depth of the material picking groove of the gripping and transfer mechanism according to the required iron core thickness L0, so that the depth of the material picking groove is the same as the required iron core thickness. S3. The pallet on the lifting frame pushes the top plate of the material upward and drives the stator core inside the material rack to move. S4. After the stator core moves to the specified height, the gripping assembly moves along the sliding frame and grips the stator core of the corresponding thickness to the transfer table. S5. The turntable continues to move on the transmission frame and stops at the position corresponding to the oil hole detection device; S6. The lifting cylinder of the top material mechanism drives the base plate, mounting plate and transfer table to rise and move towards the detection mechanism; S7. When the transfer table moves to the opening of the testing mechanism, the stator core passes through the testing groove. At the same time, the transfer table and the baffle come into contact. The ejector mechanism continues to move. Under the action of the buffer spring, the transfer table and the mounting plate move towards the bottom plate. The testing rod passes through the through hole of the mounting plate and the transfer table and enters the oil hole of the core. S8. The infrared detection device detects whether an infrared signal is sensed. If so, it is determined that all oil holes of the current stator core are open and the core is qualified. The process then proceeds to S9 to continue the detection. Otherwise, it is determined that the oil holes of the current core are blocked. The detection rod lifts the core and blocks the infrared light. The device stops working and the staff is notified for maintenance. S9. The turntable continues to move on the transmission frame and stops at the position corresponding to the parameter detection device; S10, The pressing cylinder drives the pressing assembly to move closer to the turntable, and at the same time the servo motor detects the torque, the detected value is Ta; S11. Set the torque detection thresholds of the servo motor to T1 and T2 respectively. If Ta=T1, it is determined that the first contact surface is in contact with the turntable, and the displacement sensor starts to detect. Otherwise, if Ta<T1, it is determined that the first contact surface is not in contact with the turntable, and the pressing component continues to move. S12. The servo motor continues to detect torque. The detection result is Tb. If Tb < T2, it is determined that the second contact surface is not in contact with the stator core, and the pressing assembly continues to move. Conversely, if Tb = T2, it is determined that the current second contact surface is in contact with the turntable, and the displacement sensor stops moving. S13. Detect the moving distance L of the displacement sensor. If L=L0, it is determined that the current stator core thickness is the same as the required stator core thickness, and the current stator core is qualified. If L<L0, it is determined that the current stator core thickness is too small, and the current stator core is short of material. If L>L0, it is determined that the current stator core thickness is too large, and the current stator core has too much material. S14. The turntable continues to move on the transmission frame and stops at the position corresponding to the adding / removing plate device; S15. The lamination addition / reduction device continues to monitor the thickness of the stator core and controls the addition / reduction of laminations. If a shortage of material is detected in the current stator core, the material transfer structure is controlled based on the amount of material missing to grab the material in the storage mechanism and place it on the stator core. Conversely, if an excess of material is detected in the current stator core, the material transfer structure is controlled based on the amount of excess material to grab the material on the stator core and place it back into the storage mechanism, thus completing the processing of the stator core.

8. The control method for a stator core processing production line according to claim 7, characterized in that, Step S10 also includes the quality detection of the stator core, including the following steps: S101, record the current mass of the transfer table as P0. When the transfer table is located at the parameter detection device, the pressure detector detects the pressure it receives, and the detection value is P. S102. Based on the required stator core thickness and material, obtain the current stator core mass data Pd. If P-P0=Pd, it is determined that the current stator core thickness is normal. Otherwise, if P-P0<Pd, it is determined that the current stator core is short of material. If P-P0>Pd, it is determined that the current stator core has too much material.

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