CN105091709A - Expanded coil size measuring device - Google Patents
Expanded coil size measuring device Download PDFInfo
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- CN105091709A CN105091709A CN201510501416.6A CN201510501416A CN105091709A CN 105091709 A CN105091709 A CN 105091709A CN 201510501416 A CN201510501416 A CN 201510501416A CN 105091709 A CN105091709 A CN 105091709A
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Abstract
The invention discloses an expanded coil size measuring device, comprising a detection platform, a positioning device and a measuring device, wherein the detection platform is used for installing the positioning device and the measuring device, and can be adjusted to keep a measuring flat plate horizontal; the positioning device is used for transversely and longitudinally fixing an expanded coil, so that the outer side of a linear edge of the coil attaches to a step-type platform of a longitudinal fixed stop block; and the measuring device comprises a height gauge, a transverse measuring scale, a longitudinal measuring scale and a span measuring device, and is used for measuring the nose height, linear edge height, transverse outline size, lower span and top span of the coil. By adopting the expanded coil size measuring device, various sizes of the expanded coil are measured under the coordination of the devices. Errors caused by non-uniform measuring tools and inconsistent measuring methods in the existing devices are eliminated. The measuring tools are simple, placed fixedly and uniform in measurement, so that the final size measurement value is accurate.
Description
Technical field
The present invention relates to the size measurement technique of coil of stator of motor, refer to that one rises type coil dimension measuring device especially.
Background technology
At present, coil of stator of motor generally can have strict requirement to shape, and therefore moulding process is comparatively complicated, and usually after technique for coiling, also need to carry out by expanding machine type process of rising, to make it shaping, the coil after shaping is called the type coil that rises.Rise by the shape of type coil see shown in Fig. 1,2, the type coil that rises is made up of the nose 16 of two parallel straight lines 17 and two coil-shaped, and straight line 17 two ends are connected respectively at nose 16.
The type coil that rises after shaping also needs to measure external dimensions.Measuring point comprises: overall transverse profile L, nose 16 height h2, straight line 17 height h1, lower end span Ld, top span Lu etc.But coil each position after the type that rises no longer is on a surface level, belongs to shaped piece, therefore prior art needs when measuring to use vernier height gauge to measure nose 16 height h2, straight line 17 height h1, uses tape measure span.Because survey instrument is many, in measuring process, gimmick is inconsistent, and the placement difference of survey instrument very easily produces deviation, causes final size measured value to occur error, causes adverse effect to subsequent process flow.
Summary of the invention
In view of this, the object of the invention is to propose one and to rise type coil dimension measuring device, carry out easily measuring and reducing measuring error.
Based on the above-mentioned purpose type coil dimension measuring device that rises provided by the invention, comprising: for the locating device of the type coil that fixedly rises, for measuring the measurement mechanism of the type coil size that rises, and for the detection platform of mounting and positioning device and pick-up unit; Wherein,
Locating device, comprises at least four guide rails, horizontal positioning device and longitudinal positioning device; First guide rail and the second guide rail are longitudinally installed in detection platform parallel to each other, 3rd guide rail and the 4th guide rail are horizontally installed in detection platform parallel to each other, described horizontal positioning device comprises horizontal fixed stop and transverse shifting block, horizontal fixed stop is installed on the first guide rail one end near the 4th guide rail, transverse shifting block is installed on the first guide rail, and transverse shifting block can slide along the first rail; Longitudinal positioning device comprises longitudinal fixed stop and vertically moves block, described longitudinal fixed stop has stepped ramp type locating platform and has step one facing to vertically moving block, longitudinal fixed stop is installed on the 3rd guide rail near one end of the first guide rail, vertically move block to be installed on the 3rd guide rail, vertically moving block can along the 3rd slide;
Measurement mechanism, comprise height gauge, cross measure chi, longitudinal dip stick, height gauge is installed on the second guide rail perpendicular to detection platform, cross measure chi near and be parallel to the first guide rail laterally installed, longitudinal dip stick near and be parallel to the 4th guide rail longitudinally installed.
In some embodiments, described longitudinal fixed stop is height adjustable.
In some embodiments, in described measurement mechanism, the zero point of cross measure chi aligns towards the lower limb vertically moving block one side with horizontal fixed stop, and the zero point of longitudinal dip stick aligns with the lower limb of longitudinal fixed stop towards transverse shifting block one side.
In some embodiments, described measurement mechanism also comprises the long-span measurement device for the lower end span Ld and top span Lu measuring the type coil that rises, and it is installed on the 4th guide rail of longitudinally installation.
In some embodiments, described long-span measurement device comprises height-regulating device, coil straight line contact stud and measures instruction pointer, wherein height-regulating device is one perpendicular to the bar of detection platform, height-regulating device is arranged on described 4th guide rail, there is ring coil straight line contact stud one end, described ring set, on height-regulating device, makes coil straight line contact stud can adjust height up and down along height-regulating device.Measure the needle placement of instruction pointer on longitudinal dip stick, the needle point of coil straight line contact stud and measurement instruction pointer is on the same transverse horizontal line with the first guide rail parallel.When measuring, coil straight line contact stud is outside the straight line contacting the type coil that rises and be placed on the table top of detection platform.
In some embodiments, described guide rail can comprise restricted plug, described restricted plug is the block rubber that width is greater than guide rail width, transverse shifting block and vertically move block move to suitable position time, fill in transverse shifting block and vertically move in the guide rail at block rear, for limiting horizontal movement block with vertically move the slip of block on guide rail.
In some embodiments, described detection platform comprise at least four heighten levelling device, measure flat board, vertical equity chi, transverse horizontal chi; Heighten levelling device at least four and be positioned at the dull and stereotyped bottom of measurement; Vertical equity chi is longitudinally installed on to be measured on flat board, and transverse horizontal chi is horizontally installed in be measured on flat board.
As can be seen from above, the type coil dimension measuring device that rises provided by the invention have employed horizontal positioning device and longitudinal positioning device positions, and makes coil can keep fixing putting position in measuring process; Again by unified survey instrument, and be provided with guide rail it can be made to move to coil diverse location flexibly, make gimmick in measuring process unified, and convenience and high-efficiency, greatly reduce measuring error, for subsequent process flow provides convenient.Be applicable to scale measurement to rise type coil size.
Accompanying drawing explanation
Fig. 1 is the type coil front view that rises;
Fig. 2 is oblique view on the left of the type coil that rises;
Fig. 3 is the type coil dimension measuring device embodiment left view that rises provided by the invention;
Fig. 4 is the type coil dimension measuring device embodiment vertical view that rises provided by the invention;
Fig. 5 is the type coil dimension measuring device embodiment stereographic map that rises provided by the invention;
Fig. 6 is the type coil dimension measuring device embodiment long-span measurement device detailed structure schematic diagram that rises provided by the invention;
Fig. 7 be provided by the invention rise type coil dimension measuring device examples measure time coil and device putting position stereographic map.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
It should be noted that, in the embodiment of the present invention, the statement of all uses " first " and " second " is all the parameters in order to the entity or non-equal distinguishing two same names non-equal, visible " first " " second " convenience only in order to state, should not be construed as the restriction to the embodiment of the present invention, subsequent embodiment illustrates no longer one by one to this.
The type coil dimension measuring device that rises of the present invention, comprising: locating device, measurement mechanism and detection platform three parts.
With reference to accompanying drawing 4, it is the type coil dimension measuring device embodiment vertical view that rises provided by the invention.
Detection platform, for mounting and positioning device and measurement mechanism.
Locating device, comprises at least four guide rails 9, horizontal positioning device and longitudinal positioning device, and wherein said longitudinal positioning device comprises longitudinal fixed stop 7 and vertically moves block 8, and described horizontal positioning device comprises horizontal fixed stop 5 and transverse shifting block 6.
With reference to accompanying drawing 5, it is the type coil dimension measuring device embodiment stereographic map that rises provided by the invention.
Wherein the 3rd guide rail 93 and the 4th guide rail 94 parallel to each other and be longitudinally installed in detection platform, first guide rail 91 and the second guide rail 92 parallel to each other and be horizontally installed in detection platform, the first guide rail 91, second guide rail 92 and the 3rd guide rail 93, the 4th guide rail 94 are orthogonal.Longitudinal fixed stop 7 is installed on the 3rd guide rail 93 one end near the first guide rail 91, longitudinal fixed stop 7 is substantially elongated and be provided with stepped ramp type locating platform, its length direction is vertical with the 3rd guide rail 93, the stepped ramp type locating platform of longitudinal fixed stop 7 have step one facing to vertically moving block 8.Vertically moving block 8 is installed on the 3rd guide rail 93, can vertically move along the 3rd guide rail 93.Horizontal fixed stop 5 is fixedly installed in the first guide rail 91 one end near the 4th guide rail 94, and transverse shifting block 6 is installed on the first guide rail 91, can along the first guide rail 91 transverse shifting.So, shown in Figure 7, when measuring, a straight line of the type coil that rises is placed on the table top of detection platform.Another straight line is placed on the stepped ramp type locating platform of fixed stop 7, and makes the one side of stepped ramp type locating platform perpendicular to detection platform of fitting completely outside this straight line, makes outside described straight line vertical with detection platform.Clamp by vertically moving block 8 and transverse shifting block 6 type coil that will rise described in sliding, thus the type coil that makes to rise is fixed on the table top of test platform.
Measurement mechanism, comprises height gauge 10, cross measure chi 11, longitudinal dip stick 12 and long-span measurement device; Height gauge 10 is installed on the second guide rail 92, cross measure chi 11 is parallel to the guide rail 91 of laterally installation and aligns towards the lower limb vertically moving block 7 one side with horizontal fixed stop 5 zero point, and longitudinal dip stick 12 is parallel to the guide rail 94 of longitudinally installation and aligns with the lower limb of longitudinal fixed stop 7 towards transverse shifting block 5 one side zero point.
With reference to accompanying drawing 6, it is the type coil dimension measuring device embodiment long-span measurement device detailed structure schematic diagram that rises provided by the invention.
Described long-span measurement device is installed on described 4th guide rail 94, can along the 4th guide rail 94 longitudinal sliding motion, for measuring lower end span Ld and the top span Lu of the type coil that rises.
Comprise: height-regulating device 13, coil straight line contact stud 14 and measurement instruction pointer 15, wherein height-regulating device 13 is one perpendicular to the bar of detection platform, height-regulating device 13 is arranged on described 4th guide rail 94, there is ring coil straight line contact stud 14 one end, described ring set, on height-regulating device 13, makes coil straight line contact stud 14 can adjust height along height-regulating device about 13.Measure the needle placement of instruction pointer 15 on longitudinal dip stick 12, coil straight line contact stud 14 is on the same transverse horizontal line parallel with the first guide rail 91 with the needle point measuring instruction pointer 15.When measuring, coil straight line contact stud 14 is outside the straight line contacting the type coil that rises and be placed on the table top of detection platform.When coil straight line contact stud 14 touches a certain position outside the type coil straight line that rises, measuring instruction pointer 15 indication reading on longitudinal dip stick 12 is just this span of locations.Described long-span measurement device can to make when fixing longitudinal dip stick still can to rise the span of type coil diverse location by Measurement accuracy.
With reference to accompanying drawing 7, for provided by the invention rise type coil dimension measuring device examples measure time coil and device putting position stereographic map.
During work, to rising, type coil can adopt following measuring process:
Adjustment measurement mechanism zero point, will vertically move block 8 and slide to and be adjacent to longitudinal fixed stop 7, adjust longitudinal dip stick 12 zero point, the zero point of now dip stick 12 and longitudinal fixed stop 7 are alignd towards transverse shifting block 5 lower limb simultaneously; The measuring table of height gauge 10 measuring junction and horizontal fixed stop 5 coil lay down location is adjacent to, adjustment height gauge 10 zero point, makes the reading of now height gauge 10 be 0; Transverse shifting block 6 is slided to and is close to horizontal fixed stop 5, adjustment cross measure chi 11 zero point, the zero point of now dip stick 11 is alignd towards vertically moving block 7 lower limb simultaneously with horizontal fixed stop 5.
Coil is fixed, the type coil straight line that rises is placed on the stepped ramp type locating platform of longitudinal fixed stop 7, adjustment height, make the coil straight line vertical level be placed on stepped ramp type locating platform, slip transverse shifting block 6, make end turn be close to horizontal fixed stop 5, slide and vertically move block 8, make coil straight line be close to longitudinal fixed stop 7.
Dimensional measurement: during measuring coil nose height h2, is adjacent to above height gauge 10 measuring junction and coil nose 16, reads height gauge 10 reading and is coil nose height h2.During measuring coil straight line height h1, height gauge 10 measuring junction and straight line 17 are adjacent to, read height gauge 10 reading and be coil straight line height h1.During the horizontal overall dimensions L of measuring coil, will vertically move block 8 and slide to and be adjacent to coil straight line 17, the scale reading that transverse shifting block 6 aligns with cross measure chi 11 is coil transverse direction overall dimensions L.During the span Ld of measuring coil lower end, adjustment height-regulating device 13, coil straight line contact stud 14 aligns with coil straight line bottom, and slide coil straight line contact stud 14 contacts coil straight line, reads to measure to indicate the reading of pointer 15 on dip stick to be coil lower end span Ld.During the span Lu of measuring coil top, adjustment height-regulating device 13, coil straight line contact stud 14 and coil straight line hanging, slide coil straight line contact stud 14 contacts coil straight line, reads to measure to indicate the reading of pointer 15 on dip stick to be coil top span Lu.
The application of the described type coil dimension measuring device that rises, to be risen type coil various sizes by locating device and measurement mechanism co-ordination measurement, overcomes because different and deviation that is that produce placed by survey instrument.
Preferably, described guide rail 9 can comprise restricted plug, described restricted plug is the block rubber that width is greater than guide rail 9 width, transverse shifting block 6 and vertically move block 8 move to suitable position time, fill in transverse shifting block 6 and vertically move in the guide rail at block 8 rear, for limiting horizontal movement block 6 with vertically move the slip of block 8 on guide rail, the measurement after being convenient to.
Preferably, described longitudinal fixed stop 7 lateral length is greater than the twice vertically moving block 8 lateral length, and longitudinal fixed stop 7 lateral length is greater than the spacing between the 3rd guide rail 93 and the 4th guide rail 94; The stepped ramp type locating platform of longitudinal fixed stop 7 is installed towards vertically moving block 8.The stepped ramp type locating platform of longitudinal fixed stop 7 can regulate according to the tested type coil specification that rises of different size near the height of one deck step in detection platform direction, specifically, the height of this layer of step should be the difference of nose height h2 and straight line height h1, i.e. h2-h1.
Further, described longitudinal fixed stop 7 height can select the mode changing differing heights block to regulate height; The method is applicable to the situation that the type coil that rises to be measured only has several specification.Or, longitudinal fixed stop 7 can be divided into upper and lower two pieces from stepped ramp type locating platform near the position of one deck step in detection platform direction, heighten the rotary extension anatomical connectivity described in levelling device 1 with at least two between two pieces, the height of stepped ramp type locating platform can be regulated; The method is applicable to the situation that the type coil that rises to be measured has plurality of specifications.And in the face of rise type coil individual difference time can finely tune, during to ensure to rise by type coil measurement, be placed on the one side of stepped ramp type locating platform perpendicular to detection platform of fitting completely outside the straight line on the stepped ramp type locating platform of fixed stop 7, make outside described straight line vertical with detection platform.
Further, described longitudinal fixed stop 7, the shape that vertically moves block 8, horizontal fixed stop 5 and transverse shifting block 6 can be square, rectangle, semicircle or polygon.
Optionally, the described block 8 that vertically moves is provided with projection with the one side that transverse shifting block 6 contacts with detection platform, ledge width is the recess width of guide rail 9, for vertically moving block 8 and transverse shifting block 6 is installed on the rail 9, and can slide along respective installed guide rail 9.
Preferably, described measurement instruction pointer 15 is L-type, and one end is connected with the side of height-regulating device 13 near guide rail 9, and pointer tip end side surface is trapezoidal, is convenient to read accurately measure the reading of instruction pointer 15 on longitudinal dip stick 12.
Further, described height-regulating device 13 lower end is provided with projection, and ledge width is the recess width of guide rail 9, for being installed on the rail 9 by height-regulating device 13, and can slide along guide rail 9.
Further, two height gauges 10 can be installed simultaneously, for measuring the straight line height of diverse location simultaneously, be convenient to get equal value record, reduce measuring error.
Optionally, described cross measure chi 11, longitudinal dip stick 12 can select Steel Ruler.
With reference to accompanying drawing 3, it is the type coil dimension measuring device embodiment left view that rises provided by the invention.
Detection platform, also comprises at least four and heightens levelling device 1, measurement dull and stereotyped 2.Heighten levelling device 1 at least four and be positioned at dull and stereotyped 2 bottoms of measurement, can play and support and regulate the effect of measuring dull and stereotyped 2 height.
Shown in accompanying drawing 4, measurement table top 2 is also provided with vertical equity chi and transverse horizontal chi, vertical equity chi 3 is longitudinally installed on the left or right edge measuring dull and stereotyped 2, transverse horizontal chi 4 is horizontally installed in the front or rear edge measuring dull and stereotyped 2, be respectively used to observation and measure dull and stereotyped 2 in horizontal and vertical whether level, thus by regulating different levelling devices 1 of heightening to keep measuring dull and stereotyped 2 levels.
Preferably, heighten levelling device 1 and can comprise support and rotary extension structure for described four, support can by the connecting link connection of four table legs perpendicular to ground placement and by being parallel to ground, article four, table leg is connected with the side of measurement dull and stereotyped 2 near ground respectively by different rotary extension structures, described rotary extension structure can adopt surface columnar structuredly to connect and compose with the right cylinder and two inner band that rotate screw thread are threaded, surface to be columnar structuredly connected with the right cylinder two and the inner band that rotate screw thread are threaded, surface has the xsect of 2 ~ 4mm width to be regular hexahedron with the middle circle of the right cylinder rotating screw thread, convenience spanner regulates, this rotary extension structure is by rotating adjustable radial height, degree of regulation can be made to be convenient to control by this kind of level and smooth rotation regulative mode.
Optionally, the technique of described detection platform is preferably as follows several:
1. measuring dull and stereotyped 2 adopts grey cast iron to make, reinforcing plate type, and workplace is rectangle, detection platform flatness B level, detection platform specification 200mm × 1000mm × 6000mm;
2. measure dull and stereotyped 2-in-1 golden cast iron to make, box-type, workplace is square or circular, detection platform flatness A level, detection platform specification 200mm × 3000mm × 6000mm;
3. measure dull and stereotyped 2 marble materials to make, reinforcing plate type, workplace is circular, detection platform flatness AA level, detection platform specification 200mm × 1500mm × 6000mm;
4. measure dull and stereotyped 2 marble materials to make, box-type, workplace is rectangle, detection platform flatness B level, detection platform specification 200mm × 2000mm × 6000mm.
Wherein, the described shape measuring flat board 2 all can be replaced square, rectangle, circle, polygon or irregular shape.Described detection platform specification all can be replaced x*y*z, and wherein x gets 150mm ~ 300mm, and y gets 1000mm ~ 3000mm, and z gets 4000mm ~ 6000mm; Different size is applicable to the coil of stator of motor measuring different size and purposes.Described detection platform flatness rank all can be replaced AA level, A level, B level.Measure dull and stereotyped 2 materials and all can be replaced grey cast iron, alloy cast iron, marble.
Those of ordinary skill in the field are to be understood that: the discussion of above any embodiment is only exemplary, and not intended to be implies that the scope of the present disclosure (comprising claim) is limited to these examples; Under thinking of the present invention, can combine between the technical characteristic in above embodiment or different embodiment yet, and there are other changes many of different aspect of the present invention as above, they do not provide in details for the sake of simplicity.Therefore, within the spirit and principles in the present invention all, any omission made, amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. rise a type coil dimension measuring device, it is characterized in that, comprising: for the locating device of the type coil that fixedly rises, for measuring the measurement mechanism of the type coil size that rises, and for the detection platform of mounting and positioning device and pick-up unit; Wherein,
Locating device, comprises at least four guide rails (9), horizontal positioning device and longitudinal positioning device, first guide rail (91) and the second guide rail (92) are longitudinally installed in detection platform parallel to each other, 3rd guide rail (93) and the 4th guide rail (94) are horizontally installed in detection platform parallel to each other, described horizontal positioning device comprises horizontal fixed stop (5) and transverse shifting block (6), horizontal fixed stop (5) is installed on the first guide rail (91) one end near the 4th guide rail (94), transverse shifting block (6) is installed on the first guide rail (91), transverse shifting block (6) can slide along the first guide rail (91), longitudinal positioning device comprises longitudinal fixed stop (7) and vertically moves block (8), described longitudinal fixed stop (7) has stepped ramp type locating platform and has step one facing to vertically moving block (8), longitudinal fixed stop (7) is installed on the 3rd guide rail (93) one end near the first guide rail (91), vertically move block (8) to be installed on the 3rd guide rail (93), vertically moving block (8) can slide along the 3rd guide rail (93),
Measurement mechanism, comprise height gauge (10), cross measure chi (11), longitudinal dip stick (12), height gauge (10) is installed on the second guide rail (92) perpendicular to detection platform, cross measure chi (11) near and be parallel to the first guide rail (91) laterally installed, longitudinal dip stick (11) near and be parallel to the 4th guide rail (94) longitudinally installed.
2. the type coil dimension measuring device that rises according to claim 1, is characterized in that, described longitudinal fixed stop (7) is height adjustable.
3. the type coil dimension measuring device that rises according to claim 1, it is characterized in that, in described measurement mechanism, the zero point of cross measure chi (11) aligns towards the lower limb vertically moving block (7) one side with horizontal fixed stop (5), and the zero point of longitudinal dip stick (12) aligns with the lower limb of longitudinal fixed stop (7) towards transverse shifting block (5) one side.
4. the type coil dimension measuring device that rises according to claim 1, it is characterized in that, described measurement mechanism also comprises the long-span measurement device for the lower end span Ld and top span Lu measuring the type coil that rises, and it is installed on the 4th guide rail (94) of longitudinally installation.
5. the type coil dimension measuring device that rises according to claim 4, it is characterized in that, described long-span measurement device comprises height-regulating device (13), coil straight line contact stud (14) and measurement instruction pointer (15), wherein height-regulating device (13) is one perpendicular to the bar of detection platform, height-regulating device (13) is arranged on described 4th guide rail (94), there is ring coil straight line contact stud (14) one end, described ring set is on height-regulating device (13), make coil straight line contact stud (14) height can be adjusted up and down along height-regulating device (13).Measure the needle placement of instruction pointer (15) on longitudinal dip stick (12), coil straight line contact stud (14) is on the same transverse horizontal line parallel with the first guide rail (91) with the needle point measuring instruction pointer (15).When measuring, coil straight line contact stud (14) is outside the straight line contacting the type coil that rises and be placed on the table top of detection platform.
6. the type coil dimension measuring device that rises according to claim 1, it is characterized in that, described guide rail (9) can comprise restricted plug, described restricted plug is the block rubber that width is greater than guide rail (9) width, transverse shifting block (6) and vertically move block (8) move to suitable position time, fill in transverse shifting block (6) and vertically move in the guide rail at block (8) rear, for limiting horizontal movement block (6) with vertically move block (8) slip on guide rail.
7. the type coil dimension measuring device that rises according to any one of claim 1 ~ 6, it is characterized in that, described detection platform comprises at least four and heightens levelling device (1), measurement dull and stereotyped (2), vertical equity chi (3), transverse horizontal chi (4); Heighten levelling device (1) at least four and be positioned at dull and stereotyped (2) bottom of measurement; Vertical equity chi (3) is longitudinally installed on to be measured on dull and stereotyped (2), and transverse horizontal chi (4) is horizontally installed in be measured on dull and stereotyped (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501416.6A CN105091709B (en) | 2015-08-14 | 2015-08-14 | One kind rises type coil dimension measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501416.6A CN105091709B (en) | 2015-08-14 | 2015-08-14 | One kind rises type coil dimension measuring device |
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| CN105091709A true CN105091709A (en) | 2015-11-25 |
| CN105091709B CN105091709B (en) | 2017-08-11 |
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| CN201510501416.6A Expired - Fee Related CN105091709B (en) | 2015-08-14 | 2015-08-14 | One kind rises type coil dimension measuring device |
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| CN113932716A (en) * | 2021-11-11 | 2022-01-14 | 四川九洲电器集团有限责任公司 | Large-scale motor coil detection device and detection method |
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| CN105091709B (en) | 2017-08-11 |
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