CN114754720A - Method and device for automatically measuring thickness of laminated iron core on line - Google Patents

Method and device for automatically measuring thickness of laminated iron core on line Download PDF

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Publication number
CN114754720A
CN114754720A CN202210663842.XA CN202210663842A CN114754720A CN 114754720 A CN114754720 A CN 114754720A CN 202210663842 A CN202210663842 A CN 202210663842A CN 114754720 A CN114754720 A CN 114754720A
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Prior art keywords
thickness
iron core
measuring
laminated iron
material plate
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Inventor
项源
薛雷
王洪波
杨仁义
谭友春
周守杰
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Suzhou Find Stamping Machinery Technology Co ltd
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Suzhou Find Stamping Machinery Technology Co ltd
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Priority to CN202210663842.XA priority Critical patent/CN114754720A/en
Publication of CN114754720A publication Critical patent/CN114754720A/en
Priority to CN202211435882.5A priority patent/CN115824123A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention discloses an online automatic measuring method for material thickness of a laminated iron core, belonging to the field of motors.

Description

Method and device for automatically measuring thickness of laminated iron core on line
Technical Field
The invention relates to the field of motors, in particular to an online material thickness automatic measurement method and device for laminated iron cores.
Background
In the manufacture of the laminated core, a coiled material sheet is punched out into a core shape by a press machine. A plurality of core-shaped material plates are stacked in the thickness direction and integrated to form a stacked core of a motor. Cold and hot inequality in the flitch production process, incorrect placement mode in the transportation process and lapping during the laminated iron core production process can all lead to the flitch to warp to there is the difference in the height that leads to the flitch after the blanking of the same quantity to make the laminated iron core, influences motor quality.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the present invention is to provide an automatic online material thickness measuring method in the manufacturing process of the laminated iron core, which can accurately detect and calculate the thickness of the material plates and the thickness after stacking in real time, and control the number of the stacked material plates, so that the manufactured laminated iron core has accurate height.
In order to overcome the defects of the prior art, a second object of the present invention is to provide an automatic online material thickness measuring device during the manufacturing process of the laminated iron core, which can accurately detect and calculate the thickness of the material plates and the thickness after stacking in real time, and control the number of the stacked material plates, so that the height of the manufactured laminated iron core is accurate.
One of the purposes of the invention is realized by adopting the following technical scheme:
an on-line material thickness automatic measurement method for a laminated iron core comprises the following steps:
one end of a coiled material plate is unfolded, a plurality of iron core punching positions are planned on the material plate, the material plate on the punching positions is subjected to multi-point thickness detection, abnormal values are removed, and the material plate is obtainednThe thickness processing data are respectively:H 1 、H 2 ……H n thickness of stock
Figure 332978DEST_PATH_IMAGE001
Continuously detecting along the feeding direction of the material plates to obtain the thicknesses of a plurality of material platesD 1 、D 2 ……D m
Stamping the flitches at a plurality of stamping positions and stacking the stamped flitches, wherein the total thickness of the stacked flitches is
Figure 250512DEST_PATH_IMAGE002
βIn order to obtain the lamination coefficient,
Figure 612092DEST_PATH_IMAGE003
mthe mass of the material plate is the weight of the material plate,ρ m the density of the material plate is shown as the density of the material plate,hin order to preset the height of the iron core,bthe width of the material plate is the width of the material plate,lthe length of the material plate is the length of the material plate,D 1 ……D m is the thickness of a plurality of material plates;
actual measurement of total thickness during iron core manufacture, and least square fitting of data points to determine a calibrated linear equationFAnd (6) carrying out calibration.
Further, the material plate is made of silicon steel,β92 to 99 percent.
Further, the method for automatically measuring the thickness of the laminated iron core on the line further comprises a cleaning step, wherein the cleaning step is before the step of measuring the thickness of the material plate, and the cleaning step specifically comprises the following steps: and blowing and showering two sides of the material plate by adopting ion wind.
The second purpose of the invention is realized by adopting the following technical scheme:
an on-line material thickness automatic measuring device for a laminated iron core is used for implementing the on-line material thickness automatic measuring method for any laminated iron core, and comprises a bracket,
the two air shower cleaning devices are respectively fixed on the bracket to carry out ion air shower on two sides of the material plate;
the second roller is rotatably arranged on the bracket;
the pressure adjusting structure comprises a driving part and a first roller, the driving part drives the first roller to move so as to adjust the distance between the first roller and the second roller, and a material plate between the first roller and the second roller is in a collided state, so that the material plate thickness detection result is accurate;
The pressing structure comprises bearings which are symmetrically arranged, the material plate is in rolling contact with the bearings, and the bearings play a role in guiding the material plate;
the thickness of different positions of the flitch is measured by the plurality of measuring pieces so as to obtain the average thickness of the flitch, and the thickness of the flitch is accurate.
Furthermore, the device for automatically measuring the thickness of the laminated iron core on the line material further comprises a measuring structure, wherein the measuring structure comprises a screw, a plurality of mounting blocks and a plurality of measuring pieces, the screw is rotatably mounted on the support, the mounting blocks are mounted on the screw and matched with the screw, the measuring pieces are respectively mounted on the mounting blocks, the screw rotates to enable the mounting blocks to move relative to the support, so that the measuring pieces can measure the flitches with different widths or the same measuring piece can measure different positions of the flitch.
Furthermore, a slot is formed in the mounting block, and the flitch penetrates through the slot.
Furthermore, the measuring structure further comprises a guide rail, the guide rail is fixed on the support, and the mounting block is slidably mounted on the guide rail.
Furthermore, the measuring structure further comprises a hand wheel, the hand wheel is rotatably installed on the support and connected with the screw rod, and the hand wheel is driven by external force to drive the screw rod to rotate relative to the support.
Furthermore, the pressing structure comprises two mounting rods and two pressing pieces mounted on the mounting rods, each pressing piece comprises a rod body and a bearing, the bearing is rotatably mounted on the rod body, two ends of each rod body are respectively mounted on the two mounting rods, and an elastic piece is arranged between the end part of the rod body and the mounting rods to adjust the pressure between the bearing and the material plate.
Furthermore, the automatic online material thickness measuring device for the laminated iron core further comprises a guide structure, the guide structure comprises a support plate and a guide wheel, the support plate is fixed at the end of the support, the guide wheel is rotatably mounted on the support plate, a rotating shaft of the guide wheel is perpendicular to the feeding direction of the material plate, and the guide wheel is in rolling contact with the edge of the material plate.
Compared with the prior art, the method for automatically measuring the material thickness of the laminated iron core on line adopts multi-point detection on the material plates, accurately measures the thickness of each material plate, calculates the total thickness of the stacked material plates by considering the influence of blanking on the thickness of the material plates, and controls the number of the stacked material plates, so that the height of the manufactured laminated iron core is accurate.
Drawings
Fig. 1 is a perspective view of an on-line material thickness automatic measuring device for laminated iron cores according to the present invention;
Fig. 2 is a perspective view of a base of the laminated iron core on-line automatic material thickness measuring device of fig. 1;
fig. 3 is a partial structural perspective view of the laminated iron core of fig. 1 in a use state of the automatic online material thickness measuring device;
fig. 4 is another partial structure perspective view of the laminated iron core on-line automatic material thickness measuring device of fig. 1;
fig. 5 is a perspective view of a pressure adjusting structure of the laminated iron core of fig. 4 in the automatic wire thickness measuring device;
fig. 6 is a perspective view of the pressing structure of the laminated iron core on-line automatic material thickness measuring device in fig. 4;
fig. 7 is a perspective view of a measuring structure of the laminated iron core of fig. 4 in the automatic measuring apparatus for material thickness;
fig. 8 is a schematic view illustrating a use state of the laminated iron core of fig. 4 in an internal structure of the automatic linear material thickness measuring device;
fig. 9 is another internal structure diagram of the laminated iron core of fig. 4 in an automatic measuring device for the wire thickness.
In the figure: 10. a base; 11. a main body; 12. a crash pad; 120. a protrusion; 20. a support; 21. a base plate; 22. a side plate; 23. a top plate; 30. an air shower cleaning device; 40. a pressure regulating structure; 41. a drive member; 42. a mounting frame; 43. a first drum; 50. a pressing structure; 51. mounting a rod; 52. a pressing member; 520. a rod body; 521. a bearing; 60. a guide structure; 61. a support plate; 62. a guide wheel; 70. a measurement structure; 71. a guide rail; 72. a screw; 73. a hand wheel; 74. mounting blocks; 75. a measuring member; 80. a second drum; 100. and a material plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by the intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The laminated core is made of a material plate 100, and the material plate 100 is placed in a roll. The material sheet 100 is formed by blanking a plurality of sheet materials corresponding to the size of the core, and then stacking and solidifying the plurality of sheet materials to form a laminated core.
The method for automatically measuring the thickness of the laminated iron core on line comprises the following steps:
unfolding one end of the coiled material plate 100, planning a punching position of the material plate 100, carrying out multi-point thickness detection on the material plate on the punching position, and removing abnormal values to obtainnThe thickness processing data are respectively:H 1 、H 2 ……H n thickness of the flitch 100
Figure 996194DEST_PATH_IMAGE004
Continuously detecting along the feeding direction of the material plates 100 to obtain the thickness of a plurality of material plates 100D 1 、D 2 ……D m
Stamping the flitches 100 at a plurality of stamping positions and stacking the stamped flitches 100, wherein the total thickness of the stacked flitches 100
Figure 600481DEST_PATH_IMAGE005
βIn order to obtain the lamination coefficient,
Figure 53197DEST_PATH_IMAGE006
mthe mass of the material plate 100 is,ρ m the density of the material plate 100 is,hin order to preset the height of the iron core,bthe width of the material plate 100 is,lfor the length of the material plate 100,D 1 ……D m is the thickness of the plurality of flitches 100;
actually measuring the total thickness of the two iron cores in the manufacturing process, determining a calibration linear equation by fitting data points by a least square method, and performing a calibration on the equationFAnd (6) carrying out calibration.
Specifically, the flitch 100 is made of silicon steel,β92 to 99 percent. The method for automatically measuring the thickness of the laminated iron core on line further comprises a cleaning step, wherein the cleaning step is performed before the step of measuring the thickness of the material plate 100, and the cleaning step specifically comprises the following steps: and blowing and showering the two sides of the material plate 100 by adopting ion wind.
In the step of removing the abnormal value, setting a preset value of the flitch 100, and setting normal data within the range that the difference value between the preset value and the flitch is less than or equal to 0.5% for adoption; if the difference value from the preset value is more than 0.5%, the abnormal value is an abnormal value and needs to be removed.
The least square best fit equation is
Figure 223278DEST_PATH_IMAGE007
In whichD 1 Which is the thickness of the flitch 100,abin order to be a coefficient of fit,Fthe total thickness of the stacked material plates 100. Using a plurality of groups(D 1、 F)Data, calculating fitting coefficientabThickness of each flitch 100 in actual productionD 1 Introducing fitting equation to obtain corrected total thicknessFAnd errors of the method are avoided.
In the actual production process, taking the thickness of the flitch 100 as 0.3mm as an example, before an online automatic material thickness measuring method of the laminated iron core is adopted, the thickness measurement of the flitch 100 is inaccurate, so that the total thickness error after superposition is large, the reject ratio of a product is 10%, and Cgk (capability index of detection equipment) of the whole manufacturing equipment is less than 0.3. After the laminated iron core is adopted to carry out the online material thickness automatic measurement method, the thickness of the material plate 100 is accurately measured, the total thickness error after the lamination is small, the reject ratio of a product is reduced to 0.5%, Cgk (detection equipment capability index) of the whole manufacturing equipment is more than 1.33 (the generally accepted standard of Cgk is > =1.33, and if Cgk of a test instrument is too small, the laminated iron core cannot be used for measuring the performance of the product).
Referring to fig. 1 to 9, an apparatus for automatically measuring a thickness of a laminated iron core on line according to the present invention is used for performing the above method, and includes a base 10, a bracket 20, a wind shower cleaning device 30, a pressure adjusting structure 40, a pressing structure 50, a guiding structure 60, a measuring structure 70, and two second rollers 80.
The base 10 includes a main body 11 and a plurality of crash pads 12. The crash pad 12 is made of an elastic material, and specifically, the crash pad 12 is made of nitrile rubber. The crash pad 12 is fixed to an end of the body 11. The crash pad 12 is provided with a plurality of protrusions 120, and the protrusions 120 have different heights and sizes. Specifically, the protrusions 120 are cylindrical, the protrusions 120 are arranged in four rows, and the four rows of protrusions 120 have different diameters and heights. The number of the shock-proof pads 12 is four, and the four shock-proof pads 12 are fixed at four corners of the main body 11.
The bracket 20 includes a bottom plate 21, two side plates 22, and a top plate 23. Two side plates 22 are fixed to opposite ends of the bottom plate 21, respectively. The two side plates 22 are parallel to each other and perpendicular to the bottom plate 21. The top plate 23 is fixed to the two side plates 22 at both ends thereof, and the top plate 23 is parallel to the bottom plate 21. The bottom plate 21, the two side plates 22 and the top plate 23 enclose a hollow cuboid, the front end and the rear end of the support 20 are open, and the material plate 100 enters the support 20 from the front end and extends out of the support 20 from the rear end.
The number of the air shower cleaning devices 30 is two, the two air shower cleaning devices 30 are respectively fixed on the bottom plate 21 and the top plate 23, the two air shower cleaning devices 30 are both positioned at the front end of the support 20, the two air shower cleaning devices 30 are oppositely arranged, and air outlets of the two air shower cleaning devices 30 face the upper side and the lower side of the material plate 100. Specifically, the air shower cleaning device 30 is communicated with an air storage tank, and the air storage tank supplies air to the air shower cleaning device 30. The air outlet angle and the air blowing time of the air blowing cleaning device 30 can be adjusted. The air shower cleaning device 30 adopts a stainless steel protective cover, and is provided with a transparent observation hole to facilitate observation of the cleaning condition of the material plate 100.
The pressure adjusting structure 40 includes a driving member 41, a mounting frame 42, and two first rollers 43. The driving member 41 is fixed to the top plate 23. In the present embodiment, the driver 41 is a cylinder. The mounting bracket 42 is mounted to the output end of the driver 41. The two first rollers 43 are rotatably mounted on the mounting frame 42, and the two first rollers 43 are parallel to each other and located at the same horizontal level. The driving member 41 drives the two first rollers 43 to move in the vertical direction, so as to adjust the distance between the first rollers 43 and the second rollers 80, so that the material plate 100 is in a pressed state (simulated static state) between the first rollers 43 and the second rollers 80, and the thickness detection result of the material plate 100 is accurate.
The pressing structure 50 includes two mounting rods 51 and two pressing elements 52. The two mounting rods 51 are fixed to both ends of the base plate 21, respectively. Each pressing member 52 is mounted at its two ends to the two mounting rods 51. An elastic member is arranged between the pressing member 52 and the mounting rod 51, and the position of the pressing member 52 can be adjusted through the elastic member to adjust the pressure between the bearing 521 and the material plate 100. Specifically, the pressing member 52 includes a rod 520 and a bearing 521, and the bearing 521 is rotatably mounted on the rod 520. The bearing 521 is a fisheye bearing. The bearings 521 of the two pressing members 52 are oppositely arranged. The pressing structures 50 are provided in plural numbers, and the plural pressing structures 50 are arranged along the feeding direction of the material plate 100.
The number of the guide structures 60 is two, and the two guide structures 60 are respectively located at opposite ends of the bracket 20. The guide structure 60 functions to guide the flitch 100. The guide structure 60 comprises a support plate 61 and two guide wheels 62. Two guide wheels 62 are rotatably mounted to the support plate 61. The axes of rotation of the guide wheels 62 are parallel to each other and perpendicular to the feed direction of the flitch 100. The distance between the guide wheels 62 is substantially the same as the width of the material plate 100, and both edges of the material plate 100 are in rolling contact with the guide wheels 62, respectively.
The measuring structure 70 comprises a guide rail 71, a screw 72, a hand wheel 73, a mounting block 74 and a number of measuring pieces 75. The guide rail 71 is fixed to the bottom plate 21, and the screw 72 is rotatably mounted between the side plates 22. The hand wheel 73 is rotatably mounted outside the side plate 22, the hand wheel 73 is fixedly connected with the screw 72, and the hand wheel 73 drives the screw 72 to rotate. The number of the mounting blocks 74 is plural, and the plural mounting blocks 74 are mounted to the screw 72 and engaged with the screw 72. As the screw 72 rotates, the mounting block 74 moves linearly. The measuring member 75 is mounted to the mounting block 74. The plurality of measuring members 75 can measure the thickness of the flitch 100 at different positions to obtain the average thickness of the flitch 100, so that the thickness of the flitch 100 is accurate. When the hand wheel 73 is rotated by an external force, and the screw 72 is rotated, the mounting block 74 moves to move the measuring piece 75, so that the measuring piece 75 can measure flitches 100 with different widths or the same measuring piece 75 can measure different positions of the flitch 100. The measuring member 75 is any one of a measuring sensor, a radioactive thickness gauge, an ultrasonic thickness gauge, a laser range finder, an eddy current thickness gauge, or a mechanical thickness gauge.
The second rollers 80 are rotatably mounted on the two side plates 22 of the frame 20, the number of the second rollers 80 is two, and the two second rollers 80 are parallel to each other. The second roller 80 is located below the first roller 43, and the second roller 80 is disposed opposite to the first roller 43. The second roller 80 is disposed parallel to the first roller 43 and on the same plane, and a gap through which the feed plate 100 passes is formed between the second roller 80 and the first roller 43.
When the online material thickness automatic measuring device for laminated iron cores is used, one end of the coiled material plate 100 extends into the online material thickness automatic measuring device for laminated iron cores, and the two air showering cleaning devices 30 are respectively aligned with each otherAir showering is performed on two sides of the material plate 100, so that the material plate 100 is cleaned. The air from the air shower cleaning device 30 is filtered and dried. The two edges of the material plate 100 are respectively in rolling contact with the two guide wheels 62, and the guide structure 60 guides the material plate 100. The plurality of measuring parts 75 of the measuring structure 70 perform thickness detection (core part size) on the material plate 100 within a specific size to obtain a plurality of thickness data, and remove abnormal values from the thickness data to obtainnThe thickness processing data are respectively as follows:H 1 、H 2 ……H n thickness of flitch 100
Figure 401450DEST_PATH_IMAGE008
In the measuring process, the driving member 41 drives the two first rollers 43 to move in the vertical direction, so as to adjust the distance between the first rollers 43 and the second rollers 80, so that the material plate 100 is in a pressed state (simulated static state) between the first rollers 43 and the second rollers 80, and the thickness detection result of the material plate 100 is accurate.
The method for automatically measuring the thickness of the laminated iron core on line adopts multi-point detection on the material plates 100, accurately measures the thickness of each material plate 100, considers the influence of blanking on the thickness of the material plates 100, calculates the total thickness of the stacked material plates 100, controls the number of the stacked material plates 100 and ensures that the height of the manufactured laminated iron core is accurate.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.

Claims (10)

1. An online material thickness automatic measurement method for a laminated iron core is characterized by comprising the following steps:
one end of the coiled material plate is unfolded and arranged on the material plateA plurality of iron core stamping positions are planned on the upper plate, multipoint thickness detection is carried out on the material plates on the stamping positions, abnormal values are removed, and the obtained result isnThe thickness processing data are respectively as follows:H 1 、H 2 ……H n thickness of stock
Figure 17864DEST_PATH_IMAGE001
Continuously detecting along the feeding direction of the material plates to obtain the thicknesses of a plurality of material platesD 1 、D 2 ……D m
Stamping the flitches at a plurality of stamping positions and stacking the stamped flitches, wherein the total thickness of the stacked flitches is
Figure 740226DEST_PATH_IMAGE002
βIn order to obtain the lamination coefficient,
Figure 641317DEST_PATH_IMAGE003
mthe mass of the material plate is the weight of the material plate,ρ m the density of the material plate is shown as the density of the material plate,hin order to preset the height of the iron core,bis the width of the material plate,lthe length of the material plate is taken as the length of the material plate,D 1 ……D m is the thickness of a plurality of material plates;
actual measurement of total thickness during iron core manufacture, and least square fitting of data points to determine a calibrated linear equationFAnd (6) carrying out calibration.
2. The laminated core on-line material thickness automatic measurement method according to claim 1, characterized in that: the material plate is made of silicon steel,β92 to 99 percent.
3. The laminated core on-line material thickness automatic measurement method according to claim 1, characterized in that: the method for automatically measuring the thickness of the laminated iron core on line further comprises a cleaning step, wherein the cleaning step is performed before the step of measuring the thickness of the material plate, and the cleaning step specifically comprises the following steps: and blowing and showering two sides of the material plate by adopting ion wind.
4. An automatic laminated iron core material thickness measuring device for implementing the automatic laminated iron core material thickness measuring method according to any one of claims 1 to 3, the automatic laminated iron core material thickness measuring device comprising a support, characterized in that: the device for automatically measuring the thickness of the laminated iron core on line material further comprises
The two air showering cleaning devices are respectively fixed on the bracket to blow and shower ions on two sides of the material plate by the air;
a second roller rotatably mounted to the bracket;
the pressure adjusting structure comprises a driving part and a first roller, the driving part drives the first roller to move so as to adjust the distance between the first roller and the second roller, and a material plate between the first roller and the second roller is in a collided state, so that the material plate thickness detection result is accurate;
the pressing structure comprises bearings which are symmetrically arranged, the material plate is in rolling contact with the bearings, and the bearings play a role in guiding the material plate;
the thickness of different positions of the flitch is measured by the plurality of measuring pieces so as to obtain the average thickness of the flitch, and the thickness of the flitch is accurate.
5. The laminated iron core on-line material thickness automatic measuring device according to claim 4, characterized in that: the automatic online material thickness measuring device for the laminated iron core further comprises a measuring structure, wherein the measuring structure comprises a screw, a plurality of mounting blocks and a plurality of measuring pieces, the screw is rotatably mounted on the support, the mounting blocks are mounted on the screw and matched with the screw, the measuring pieces are respectively mounted on the mounting blocks, and the screw rotates to enable the mounting blocks to move relative to the support, so that the measuring pieces can measure different width material plates or the same measuring piece can measure different positions of the material plates.
6. The laminated iron core on-line material thickness automatic measuring device according to claim 5, characterized in that: the mounting block is provided with a slot, and the flitch penetrates through the slot.
7. The laminated iron core on-line material thickness automatic measuring device according to claim 5, characterized in that: the measuring structure further comprises a guide rail, the guide rail is fixed on the support, and the mounting block is slidably mounted on the guide rail.
8. The laminated iron core on-line material thickness automatic measuring device according to claim 5, characterized in that: the measuring structure further comprises a hand wheel, the hand wheel is rotatably installed on the support and connected with the screw rod, and the hand wheel is driven by external force to drive the screw rod to rotate relative to the support.
9. The laminated iron core on-line material thickness automatic measuring device according to claim 4, characterized in that: the pressing structure comprises two mounting rods and two pressing pieces mounted on the mounting rods, each pressing piece comprises a rod body and a bearing, the bearings are rotatably mounted on the rod bodies, two ends of each rod body are respectively mounted on the two mounting rods, and an elastic piece is arranged between the end part of each rod body and the mounting rods to adjust the pressure between the bearing and the material plate.
10. The laminated iron core on-line material thickness automatic measuring device according to claim 4, characterized in that: the automatic online material thickness measuring device for the laminated iron core further comprises a guide structure, the guide structure comprises a supporting plate and a guide wheel, the supporting plate is fixed at the end of the support, the guide wheel is rotatably mounted in the supporting plate, a rotating shaft of the guide wheel is perpendicular to the feeding direction of the material plate, and the guide wheel is in rolling contact with the edge of the material plate.
CN202210663842.XA 2022-06-14 2022-06-14 Method and device for automatically measuring thickness of laminated iron core on line Pending CN114754720A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116329324A (en) * 2023-03-11 2023-06-27 苏州祥隆泰自动化科技有限公司 Equipment for precisely detecting material thickness on line matched with punch press

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