CN112087107A - Connector of position detector - Google Patents
Connector of position detector Download PDFInfo
- Publication number
- CN112087107A CN112087107A CN202010538097.7A CN202010538097A CN112087107A CN 112087107 A CN112087107 A CN 112087107A CN 202010538097 A CN202010538097 A CN 202010538097A CN 112087107 A CN112087107 A CN 112087107A
- Authority
- CN
- China
- Prior art keywords
- thick plate
- position detector
- axis
- bifurcated
- thick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring 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
- G01B21/04—Measuring 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 by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Motor Or Generator Frames (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Disclosed is a position detector connector which has higher torsional rigidity around the z-axis, is elastic in the x-axis, y-axis and z-axis directions, and is inexpensive and excellent in workability. According to the adopted structure, the bifurcated support portions 62 and 63 of the thick plate 60 are inserted along both sides of the bent portion 41 and are connected by bolts to be sandwiched between the bifurcated support portions 42 and 43 and the thick plate 80. The thick plate 50, the bent portion 21 and the thick plate 70 positioned on the opposite side have similar structures. Thus, a connector having higher torsional rigidity about the z-axis, having elasticity in the x-axis, y-axis and z-axis directions, and being compact in size and low in cost can be realized. Since the work of fastening the bolt from the outside to the inside is possible, the workability of assembly can be improved.
Description
Cross Reference to Related Applications
The entire disclosure of japanese patent application No. 2019-110849, filed on 14.6.2019, including the specification, claims, drawings and abstract of the specification, is incorporated herein by reference in its entirety.
Technical Field
The present disclosure relates to a connector incorporated in a position detector for a machine tool or the like.
Background
A connector for a position detector (hereinafter referred to as "position detector connector") is used to fasten a fixing portion of a motor or the like to be detected and a fixing portion of the position detector. The functions of the position detector connector include: absorbing the output shaft runout of the rotating shaft to reduce possible errors; vibration, impact, and the like transmitted from the rotating shaft are absorbed to protect bearings of the position detector, the processing circuit board, and the like. In order to absorb the above-mentioned vibration and impact, elasticity is necessary. Meanwhile, in order to eliminate detection errors, and also to increase the resonance frequency, high rigidity is required in the rotational direction.
Fig. 3 is a perspective view of a conventional connector.
The illustrated conventional connector is constructed of a single mold plate and two blocks, in which two support portions 120 and 130 and two support portions 320 and 330 opposite to the two support portions 120 and 130 are respectively connected to a fixed portion of a position detector by bolts, and two support portions 220 and 230 and two support portions 420 and 430 opposite to the two support portions 220 and 230 are respectively connected to two blocks 900 and 100 by bolts. The two blocks 900 and 100 are bolted to the annular holes 600 and 800 on the fixed side of the object to be detected. The holes 500 and 700 are bolted to the fixed portion of the object to be detected.
The conventional connector includes bent portions 110 and 310, the bent portions 110 and 310 being disposed at positions opposite to each other with a connector center interposed therebetween, and similarly disposed bent portions 210 and 410. The two supports 120 and 130 are arranged at positions spaced apart from the respective curved portions in the circumferential tangential direction. The supports 220 and 230, the supports 320 and 330, and the support portions 420 and 430 are similarly arranged. Thus, when a rotational force about the z-axis is applied, each pair of supports 120, 130, 220, 230, 320, 330, 420 and 430 supports the curved portions 110, 210, 310 and 410 mainly by a force of the plate in a compression or tension direction. Therefore, high rigidity can be obtained. Further, each pair of the supporting parts 120, 130, 220, 230, 320, 330, 420 and 430 is arranged at a space with respect to the bending parts 110, 210, 310 and 410. Therefore, when the displacement occurs in the x direction, the bent portions 110 and 310 are displaced in the plate thickness direction with respect to the supports 120, 130, 320, and 330. When displaced in the y direction, the bent portions 210 and 410 are displaced in the thickness direction of the plate with respect to the support portions 220, 230, 420, and 430. Thus, the respective bent portions are elastically supported.
Further, since the two blocks 900 and 100 are thick in the z direction around the bolt fixing portion, the respective support portions 220, 230, 420, and 430 are firmly supported, so that high rigidity against a rotational force around the z axis can be obtained.
JP2016-226090a discloses a motor with a built-in encoder, the motor comprising: the encoder rotating shaft is provided with a component to be detected; a housing on which a detection unit is mounted; a circuit board that obtains encoder rotation information by processing the signal detected by the detection unit; an encoder bearing that rotatably supports an encoder rotating shaft in such a manner that the member to be detected and the detecting unit are arranged facing each other through a gap; and a leaf spring-like connector for connecting the housing and the stator.
According to the conventional connector shown in fig. 3, when a rotational force about the z-axis acts, two blocks 900 and 100 having higher rigidity are required to firmly support the respective supports 120, 130, 220, 230, 320, 330, 420 and 430 of the bending part. Therefore, in order to increase rigidity, the peripheral portions connected to the holes 600 and 800 by bolts must be thick. Therefore, there are problems as follows: in the case where the mounting portion on which the object to be detected such as a motor is mounted is narrow and there is interference in the periphery of the bolt fixing portion, mounting is difficult.
Further, when the supporting parts 220, 230, 420 and 430 are fixed by bolts, since the fastening direction of the tool is from the inside to the outside, workability is poor.
Further, since it is necessary to arrange the bent portions 210, 410 on the inner side of the thick portion of the periphery of the bolt fixing portion, the length of the arm supporting the rotational force rotating around the z-axis is limited, and the rigidity cannot be sufficiently increased.
When installed, the position detector connector needs to have higher positioning accuracy in the direction of rotation about the z-axis. Therefore, if the two rigid blocks 900 and 100 are formed by molding, they are insufficient in hole accuracy, and thus it is necessary to form a screw hole. Therefore, it is necessary to remove machining such as milling and tapping, thereby increasing the cost of the components.
Disclosure of Invention
In view of the above-described problems, the present disclosure aims to provide a position detector connector that can elastically connect a fixing portion of an object to be detected and a fixing portion of a position detector in axial and radial directions, and that is high in torsional rigidity, low in cost, and excellent in workability.
A position detector connector for connecting a fixing portion of an object to be detected and a fixing portion of a position detector includes a molded annular thin plate, a first thick plate, a second thick plate, a third thick plate processed by tapping, and a fourth thick plate processed by tapping. Wherein the sheet is provided with: a first curved portion and a second curved portion arranged in pairs at positions opposite to each other with respect to a center of the ring shape; and third and fourth curved portions arranged in pairs at positions opposite to each other with respect to the center of the ring shape. The first curved portion and the second curved portion are provided with bifurcated supports spaced apart in respective circumferential tangential directions, and the third curved portion and the fourth curved portion are provided with bifurcated supports spaced apart in respective circumferential tangential directions. The respective bifurcated support portions of the first curved portion and the second curved portion are fastened together with the fixed portion of the position detector. The first thick plate and the second thick plate are provided with bifurcated supporting portions spaced apart in respective circumferential tangential directions. The tapped third thick plate is connected to the branched support portions of the third bent portion by bolts in a manner of sandwiching the branched support portions of the first thick plate. The tapped fourth thick plate is connected to the branched support portions of the fourth bending portion by bolts in a manner of sandwiching the branched support portions of the second thick plate. The first thick plate and the second thick plate have fastening holes arranged to be connected with a ring that is connected to an object to be detected by bolts.
In one embodiment of the present disclosure, the third and fourth thick plates are set to be thicker than the thin plate, the first thick plate and the second thick plate.
In another embodiment of the present disclosure, the first and second thick plates are set to be thicker than the thin plate.
In yet another embodiment of the present disclosure, the bifurcated support of each of the third and fourth curved portions is disposed outside of the bifurcated support of each of the first and second thick plates.
According to the present disclosure, the outer dimension of the bolt peripheral portion can be reduced, so that interference can be avoided even in a narrow space. Further, the conventional constituent components requiring high-cost processing, particularly the components corresponding to the blocks 900 and 100 of the conventional connector shown in fig. 3, may be replaced with the first to fourth thick plates, whereby the cost can be reduced. Further, when the third bent portion is bolted to the first and second thick plates, and the fourth bent portion is bolted to the first and second thick plates, a fastening tool can be used from the outside. Therefore, workability can be improved. Further, the third curved portion and the fourth curved portion may be further arranged radially outward with a limitation in size. When two axes orthogonal to each other in the plane of the thin plate are defined as an x-axis and a y-axis, and an axis orthogonal to these axes is defined as a z-axis, higher rigidity can be obtained because the length of the arm that supports a rotational force about the z-axis can be lengthened. Further, since the length of the arm supporting the displacement in the z-axis direction can be lengthened, improved elastic support can be achieved.
Drawings
Embodiments of the invention will be described based on the following figures, wherein:
fig. 1 is a perspective view showing the entirety of a position detector connector according to an embodiment of the present disclosure;
FIG. 2 shows a portion of a structure of a position detector connector according to an embodiment of the present disclosure;
fig. 3 is a perspective view showing the entirety of a conventional position detector connector.
Detailed Description
Fig. 1 is an overall view showing a position detector connector according to the present embodiment, and fig. 2 is a partial detailed view showing the position detector connector according to the present embodiment.
First, an exemplary configuration of the position detector connector will be described in detail with reference to fig. 1.
The position detector connector according to the present embodiment is configured to include a molded thin plate 10, thick plates 50 and 60, and thick plates 70 and 80, each of which is tapped at two positions. The sheet 10 is an annular member. When two axes orthogonal to each other on the plane of the thin plate 10 are an x-axis and a y-axis, and an axis orthogonal to the x-axis and the y-axis is a z-axis, the thin plate 10 has curved portions 11, 31, 21, and 41 extending in the z-axis direction. The bent portions 11 and 31 are formed in pairs at positions facing the center of the ring shape with the center of the ring shape interposed between the bent portions 11 and 31, and the bent portions 11 and 31 serve as a first bent portion and a second bent portion, respectively. Similarly, the bent portions 21 and 41 are formed in pairs at positions facing the center of the loop shape with the center of the loop shape interposed between the bent portions 21 and 41, and the bent portions 21 and 41 function as a third bent portion and a fourth bent portion, respectively. The bent portions 11 and 31 and the bent portions 21 and 41 are angularly spaced apart at their arrangement positions so as to form an angle of substantially 90 degrees therebetween.
The curved portion 11 has a pair of bifurcated supports 12 and 13 formed at intervals in the circumferential tangential direction, and the curved portion 31 has a pair of bifurcated supports 32 and 33 formed at intervals in the circumferential tangential direction. The bifurcated supports 12 and 13 of the bent portion 11, and the bifurcated supports 32 and 33 of the bent portion 31 are respectively connected to the fixed portion of the position detector by bolts.
The curved portion 21 has a pair of bifurcated supports 22 and 23 formed at intervals in the circumferential tangential direction, and the curved portion 41 has a pair of bifurcated supports 42 and 43 formed at intervals in the circumferential tangential direction.
The thick plate 50 has a curved shape partially curved in the z-axis direction, and a pair of bifurcated supporting portions 52 and 53 are formed at intervals at the curved shape. The thick plate 60 has a curved shape partially curved in the z-axis direction, and a pair of bifurcated supports 62 and 63 are formed at intervals at the curved shape. The thick plate 50 serves as a first thick plate, and the thick plate 60 serves as a second thick plate.
Further, as described above, the thick plates 70 and 80 are processed by tapping at two positions. Plank 70 serves as the third plank and plank 80 serves as the fourth plank.
The bifurcated support portions 22 and 23 of the bent portion 21 are bolted to the thick plate 70 in a manner sandwiching the bifurcated support portions 52 and 53 of the thick plate 50 by tapping of the thick plate 70. Further, the bifurcated support portions 42 and 43 of the bent portion 41 are bolted to the thick plate 80 in a manner sandwiching the bifurcated support portions 62 and 63 of the thick plate 60 by tapping of the thick plate 80. That is, the thick plate 70, the thick plate 50, and the bent portion 21 are arranged in order in the radial direction from the annular center side to the outer side. Similarly, the thick plate 80, the thick plate 60, and the bent portion 41 are arranged in order in the radial direction from the annular center side to the outer side.
The bent thick plate 50 has fastening holes 51 opened on the x-y plane of the thick plate 50. Similarly, the thick plate 60 has fastening holes 61 cut in the x-y plane of the thick plate 60. The thick plate 50 is bolted to the side of the ring 90, to which an object to be detected by the position detector is fixed, via the fastening hole 51. Similarly, the thick plate 60 is bolted to the ring 90 via the fastening holes 61. That is, by bolting the thick plates 50 and 60 of the connector to the ring 90 at the fixing portion of the object to be detected, and by bolting the bent portions 11 and 31 of the connector to the fixing portion of the position detector, the fixing portion of the object to be detected and the fixing portion of the position detector are connected together.
In the connector of the present embodiment, when a rotational force about the z-axis acts, the respective bifurcated supports 12, 13, 32, 33, 22, 23, 42, and 43 of the bent portions 11 and 31 and the bent portions 21 and 41 support the bent portions 11 and 31 and the bent portions 21 and 41 mainly by a compressive or tensile force of the plate. Therefore, high rigidity can be obtained.
Further, since the bifurcated support portions 12, 13, 32, 33, 22, 23, 42 and 43 are arranged at intervals with respect to the bent portions 11 and 31 and the bent portions 21 and 41, the bent portions 11 and 31 are displaced with respect to the bifurcated support portions 12, 13, 32 and 33 in the thickness direction of the plate when displaced in the x direction, and the bent portions 21 and 41 are displaced with respect to the bifurcated support portions 22, 23, 42 and 43 in the thickness direction of the plate when displaced in the y direction. Therefore, these components can be elastically supported.
Further, since the bent portions 11 and 31 and the bent portions 21 and 41 are arranged at intervals, when displacement occurs in the z direction, the bent portions 11 and 31 are displaced relative to the bent portions 21 and 41 in the plate thickness direction. Therefore, these components can be elastically supported.
In addition, according to the adopted structure, as shown in fig. 2, the bifurcated support portions 62 and 63 of the thick plate 60 are inserted along both sides of the bent portion 41 in a manner sandwiched between the bifurcated support portions 42 and 43 of the bent portion 41 and the thick plate 80 and are connected by bolts. The thick plate 50, the bent portion 21 and the thick plate 70 positioned on the opposite side have similar structures. Therefore, the bent portions 41 and 21 can be further arranged radially outward with the limitation of the size. The length of the arm supporting the rotational force about the z-axis can be lengthened. Therefore, higher rigidity can be obtained. Furthermore, since the length of the arm supporting the displacement in the z direction can be lengthened, improved elastic support can be achieved.
Here, the thick plates 70 and 80 subjected to tapping processing at two positions are significantly thicker than the thin plate 10 and the thick plates 50 and 60, whereby, when a rotational force about the z-axis acts on the position detector, the inclined displacement of the respective bifurcated supporting portions 22 and 52, 23 and 53, 42 and 62, 43 and 63 of the thin plate 10, the thick plates 50 and 60 is suppressed, while also being suppressed from being twisted in the positive and negative (+ y and-y) directions of the y-axis about the bent portions 21 and 41 as fulcrums. Each slab is threaded at two locations. A single plank can be bolted to a set of two anchors to prevent them from tilting and twisting.
Further, the thick plates 50 and 60 are set to be significantly thicker than the thin plate 10, whereby when a rotational force about the z-axis acts on the position detector, rotational displacement of the respective bifurcated support portions 22 and 52, 23 and 53, 42 and 62, 43 and 63 of the thin plate 10, the thick plates 50 and 60 about the y-axis with the fastening holes 51 and 61 as fulcrums is suppressed.
According to the connector of the present embodiment, it is possible to obtain an excellent connection having elasticity in both the axial direction and the radial direction and having high torsional rigidity between the fixing portion of the object to be detected and the fixing portion of the position detector.
Claims (4)
1. A position detector connector for connecting a fixing portion of an object to be detected and a fixing portion of a position detector, the position detector connector comprising:
a molded annular sheet;
a first thick plate and a second thick plate; and
a third thick plate processed by tapping and a fourth thick plate processed by tapping,
wherein the sheet is provided with: a first curved portion and a second curved portion arranged in pairs at positions opposite to each other with respect to a center of the ring shape; and third and fourth curved portions arranged in pairs at positions opposite to each other with respect to a center of the ring shape;
the first curved portion and the second curved portion are provided with bifurcated supports spaced apart in respective circumferential tangential directions, and the third curved portion and the fourth curved portion are provided with bifurcated supports spaced apart in respective circumferential tangential directions;
the respective bifurcated supports of the first and second curved portions are fastened together with a fixed portion of the position detector;
the first thick plate and the second thick plate are provided with bifurcated support portions spaced apart in respective circumferential tangential directions;
connecting the tapped third thick plate to the branched support portion of the third bending part by bolts in a manner of sandwiching the branched support portion of the first thick plate, and connecting the tapped fourth thick plate to the branched support portion of the fourth bending part by bolts in a manner of sandwiching the branched support portion of the second thick plate; and
the first thick plate and the second thick plate have fastening holes arranged to be connected with a ring that is connected to the object to be detected by a bolt.
2. The position detector connector according to claim 1, wherein the third thick plate and the fourth thick plate are set to be thicker than the thin plate, the first thick plate and the second thick plate.
3. The position detector connector according to claim 1 or 2, wherein the first thick plate and the second thick plate are set to be thicker than the thin plate.
4. The position detector connector according to any one of claims 1 to 3, wherein the bifurcated support portion of each of the third and fourth curved portions is arranged outside the bifurcated support portion of each of the first and second thick plates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019110849A JP7328800B2 (en) | 2019-06-14 | 2019-06-14 | Coupling for position detector |
| JP2019-110849 | 2019-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112087107A true CN112087107A (en) | 2020-12-15 |
Family
ID=73546989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010538097.7A Pending CN112087107A (en) | 2019-06-14 | 2020-06-12 | Connector of position detector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7328800B2 (en) |
| CN (1) | CN112087107A (en) |
| DE (1) | DE102020114814A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711875U (en) * | 1993-07-09 | 1995-02-21 | 株式会社安川電機 | Servo motor with rotation detector |
| JPH08284971A (en) * | 1995-04-14 | 1996-11-01 | Ishikawajima Harima Heavy Ind Co Ltd | Leaf spring for rotary encoder |
| DE29911508U1 (en) | 1999-07-01 | 2000-12-07 | Heidenhain Gmbh Dr Johannes | Coupling and use of this coupling in an angle measuring device |
| DE10102957A1 (en) | 2001-01-23 | 2002-07-25 | Heidenhain Gmbh Dr Johannes | angle measurement |
| JP6496188B2 (en) | 2015-05-27 | 2019-04-03 | オークマ株式会社 | Encoder built-in motor |
-
2019
- 2019-06-14 JP JP2019110849A patent/JP7328800B2/en active Active
-
2020
- 2020-06-04 DE DE102020114814.3A patent/DE102020114814A1/en active Pending
- 2020-06-12 CN CN202010538097.7A patent/CN112087107A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020205658A (en) | 2020-12-24 |
| JP7328800B2 (en) | 2023-08-17 |
| DE102020114814A1 (en) | 2020-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5840151B2 (en) | Rotating electric machine | |
| US5831360A (en) | Actuator | |
| US7469478B2 (en) | Coupling and angular position measuring device using the coupling | |
| KR101727343B1 (en) | Arrangement for acoustic decoupling of a stator of an electric motor | |
| EP3470810A1 (en) | Vibration isolation member and imbalance detector equipped with vibration isolation member | |
| US7719158B2 (en) | Slip-ring brush and slip-ring unit equipped with such a slip-ring brush | |
| US20200321833A1 (en) | Actuator | |
| JP2020115129A (en) | Scan unit for angular measurement mechanism | |
| US20070188027A1 (en) | Motor | |
| CN112087107A (en) | Connector of position detector | |
| US20080001074A1 (en) | Angular position measuring device and measuring system having such an angular position measuring device | |
| CN108562313A (en) | Connection sheet and structure of installing encoders | |
| CN109219693B (en) | Rotary machine | |
| CN116209880A (en) | Fastening element, in particular torque support and machine | |
| EP0723088B1 (en) | A support device for rotating shaft rolling bearings on a fixed supporting structure | |
| CN116985179B (en) | Joint module and robot joint | |
| CN220629105U (en) | Encoder mounting structure, encoder and motor | |
| WO2023219050A1 (en) | Sensor device | |
| JP3867391B2 (en) | AC generator for vehicles | |
| JPH0135558Y2 (en) | ||
| JP2023147376A (en) | electric actuator | |
| JP2021193304A (en) | Electric actuator | |
| KR20170123444A (en) | Reduction gear of motor for separation type | |
| JP2022115437A (en) | motor | |
| JPH0993850A (en) | Supporting structure for electric rotating machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |