CN202747962U - Detection tool for tooth form flange - Google Patents
Detection tool for tooth form flange Download PDFInfo
- Publication number
- CN202747962U CN202747962U CN 201220434889 CN201220434889U CN202747962U CN 202747962 U CN202747962 U CN 202747962U CN 201220434889 CN201220434889 CN 201220434889 CN 201220434889 U CN201220434889 U CN 201220434889U CN 202747962 U CN202747962 U CN 202747962U
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- profile
- semiaxis
- tooth flange
- earhole
- mandrel
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A detection tool for a tooth form flange comprises a pedestal (6); a rotation centring fluted disc arranged on the pedestal (6), and the fluted disc is used for arranging a tooth form flange to be detected; at least a first mandrel (9) being detachablely connected with a first earhole (3) and a second earhole (4) of the tooth form flange; at least a first linear slide guide rail (16) fixed on the pedestal (6); a first slide block (17) slidingly connected with the first linear slide guide rail (16); and a first indicating gauge, a dial gauge, or a super dial gauge (15) fixed on the first slide block (17); the first mandrel (9) comprises a first semi-shaft and a second semi-shaft, the first semi-shaft and the second semi-shaft are sleeved or slidingly connected together, the first semi-shaft and the second semi-shaft are provided with clasp boards extending into clasp grooves of the tooth form flange to be detected, the clasp boards are positioned on positions far away from a connecting portion between the first semi-shaft and the second semi-shaft, and distances between the clasp boards and the connecting portion of the semi-shafts are the same. The detection tool for the tooth form flange employs the indicating gauge, the dial gauge, or the super dial gauge to carry out detection of two symmetrical directions of the tooth form flange to be detected, errors are determined according to detected value, and the detection tool has advantages of smart structure, relatively low cost, and fast detection speed.
Description
Technical field
The utility model relates to for example detection utensil of truck drive shaft parts, especially relates to the detection utensil of profile of tooth flange.
Background technology
Profile of tooth flange as shown in Figure 1, the sawtooth 1 bottom flange connects transferring power in motion process with female ring flange, with compare by a plurality of bolt-connection transferring power, have connection reliable, the knob of transmission is widely used in the transmission shaft transferring power of heavy-load automobile, engineering machinery apart from large.The end of profile of tooth flange one end has engaging tooth 1, and engaging tooth 1 is in a face, and the other end of profile of tooth flange has in the first earhole 3 and the second earhole 4, the first earholes 3 and the second earhole 4 and is respectively equipped with the first annular groove 2 and the second annular groove 5.As shown in Figure 2, the center intersection point A of field of conjugate action engaging tooth 1 in its plane, in the process, require to ensure that the first annular groove 2 and the second annular groove 5 equate to the intersection point distance of aforementioned two straight lines by the straight line in two earhole axle center with by A point and crossing perpendicular to the straight line of the field of conjugate action as far as possible, be arranged symmetrically, to ensure the stationarity of transmission, improve transmission efficiency, prolong the life-span of transmission shaft, reduce wearing and tearing and behaviour's sound, thereby need the profile of tooth flange is detected.Detect to adopt three-coordinate instrument in the past, and not only time-consumingly but also complicated also needed the higher professional of technical requirement to operate, instrument and equipment to purchase maintenance cost also higher.
The utility model content
In order to overcome the defective of prior art, the utility model provides a kind of profile of tooth flange to detect utensil, can detect easily by profile of tooth flange two earhole axle center straight line and by field of conjugate action central point and perpendicular to the error between the straight line of the field of conjugate action and the two annular grooves intersection point distance error to aforementioned two straight lines.
In order to solve the problems of the technologies described above, the profile of tooth flange that the utility model provides detects utensil, has pedestal; Be positioned at the rotation centering fluted disc that profile of tooth flange to be measured is installed on the described pedestal; The first mandrel that at least one and described profile of tooth flange the first earhole and the second earhole removably connect; At least one the first linear motion guide that is fixed on the described pedestal; The first slide block that is slidingly connected with described the first linear motion guide; Be fixed in the first dial gauge, clock gauge or super clock gauge on described the first slide block, described the first mandrel comprises the first semiaxis and the second semiaxis, described the first semiaxis is socketed or is slidingly connected with the second semiaxis is in the same place, described the first semiaxis and the second semiaxis have the clamp that stretches in the profile of tooth flange annular groove to be measured away from its link, described clamp equates to the distance of its semiaxis away from link.Described the first linear motion guide can be comprised of one or more guide rail that is parallel to each other.
The principle of work of above embodiment is as follows: profile of tooth flange engaging tooth to be checked is fixedly mounted on the rotation centering fluted disc, both centering that cooperatively interact, fix with bolt after cooperating centering, the axle center of profile of tooth flange tooth to be checked center and rotation centering fluted disc is on same straight line after installing, the first mandrel is packed in first earhole and the second earhole of profile of tooth flange, its clamp snaps in the first annular groove, with the first mandrel fixed position, makes two clamps be close to simultaneously outer face or the inner face of annular groove.Turn rotation centering fluted disc, mobile the first slide block makes the gauge head of the first dial gauge, clock gauge or super clock gauge and the first end contact of the first mandrel, behind the first end face by the first dial gauge, clock gauge or super clock gauge centering the first mandrel, the reading of the first dial gauge, clock gauge or super clock gauge is made zero.Push the gauge head that the first slide block makes the first dial gauge, clock gauge or super clock gauge open and leave the first mandrel, turn rotation centering fluted disc is with profile of tooth flange rotary to be checked approximately 180
oMobile the first slide block makes the gauge head of the first dial gauge, clock gauge or super clock gauge and the second end contact of the first mandrel, the second end face by the first dial gauge, clock gauge or super clock gauge centering the first mandrel, the reading of the first dial gauge, clock gauge or super clock gauge is profile of tooth flange two annular grooves to be checked to perpendicular to the field of conjugate action and through the range difference of center A point straight line, reflects two annular grooves to the symmetry at profile of tooth flange tooth center.
Further, described the first mandrel comprises the first semiaxis and the second semiaxis, the first end of described the first semiaxis has axial bore, the first end of described the second semiaxis has the axial boss that is slidingly connected with described the first semiaxis axial bore, nearly the first half axle heads of described axial boss have axial bore, have the first spring in the axial bore of described the second semiaxis; Have on the second end face of cylinder of described the first semiaxis and stretch into the first clamp in profile of tooth flange the first annular groove to be measured and be positioned at the first steel ball on the described first clamp opposite side face of cylinder; Have on the second end face of cylinder of described the second semiaxis and stretch into the second clamp in profile of tooth flange the second annular groove to be measured and be positioned at the second steel ball on the described second clamp opposite side face of cylinder; Described the first clamp equates with the second end end face distance of described the second clamp to described the second semiaxis to the second end end face distance of described the first semiaxis, described the second steel ball and the first steel ball are connected with Compress Spring, described steel ball withstands under spring-force driven dual on profile of tooth flange the first earhole to be measured and the second earhole inwall, so that the first clamp and the second clamp snap in the described annular groove.When described the first spring was Compress Spring, the elastic force that spring produces made and produces separation force between the two-semiaxle, and the first clamp and the second clamp are close to the outer face of annular groove; When described the first spring was extension spring, the elastic force that spring produces made between the two-semiaxle and produces near acting force, and the first clamp and the second clamp are close to the inner face of annular groove.
Further, described the first mandrel also comprises the caging bolt of described the first semiaxis of restriction and the second semiaxis slide displacement.Caging bolt can limit two-semiaxle and can mutually not break away from, and after the first mandrel installs in profile of tooth flange the first earhole and the second earhole, further screws and can fix its position, improves the degree of accuracy that detects.
For can detect easily and accurately two earhole center lines with perpendicular to the field of conjugate action and through the range difference of center A point straight line.Further, described profile of tooth flange detects utensil, also has at least one the second linear motion guide that is fixed on the described pedestal; The second slide block that is slidingly connected with described the second linear motion guide; Be fixed in the second dial gauge, clock gauge or super clock gauge on described the second slide block; Be fixed in the reference field baffle plate that described pedestal is positioned at described the second dial gauge, clock gauge or super clock gauge gauge head the place ahead, the nearly profile of tooth flange end to be measured of described the second slide block has a plane vertical with described the second linear motion guide.Described the second linear motion guide can be comprised of one or more guide rail that is parallel to each other.
The principle of work of above improvement embodiment is as follows: mobile the second slide block makes the vertical plane of the nearly profile of tooth flange end to be measured of the second slide block and the second linear motion guide contact centering with the first mandrel, the gauge head of adjusting the second dial gauge, clock gauge or super clock gauge contacts with the reference field baffle plate, and the reading of the second dial gauge, clock gauge or super clock gauge is made zero.Push the second slide block open, turn rotation centering fluted disc is with profile of tooth flange rotary to be checked approximately 180
oMobile the second slide block makes the vertical plane of the nearly profile of tooth flange end to be measured of the second slide block and the second linear motion guide contact centering with the first mandrel, and the survey measurements between the second dial gauge, clock gauge or super clock gauge and the reference field baffle plate is two earhole center lines and perpendicular to the field of conjugate action and through the range difference of center A point straight line.
Further, described profile of tooth flange detects utensil, also has the second mandrel, and the two ends of described the second mandrel have the right cylinder that removably connects with profile of tooth flange the first earhole to be measured and the second earhole activity.Right cylinder and two earhole concentrics, clearance fit is installed mutually.
Further, described the second mandrel part between the first earhole and the second earhole has at least once the plane of cutting, and described plane is parallel with the axis of the second mandrel.When having two planes, be distributed in to two plane symmetry the axis both sides of the second mandrel; When having four planes, Siping City's face is divided into orthogonal two groups, is distributed in to every group two plane symmetry the axis both sides of the second mandrel.
Further, described profile of tooth flange detects utensil, also has the unsteady fluted disc that is positioned at described rotation centering fluted disc inside, described rotation centering fluted disc is rotationally connected by clutch shaft bearing and described pedestal, and described unsteady fluted disc is rotationally connected by the axial bore of the second bearing and described rotation centering fluted disc.Eliminate the angle error of profile of tooth flange engaging tooth 1 to be checked by the fluted disc that floats, improve accuracy of detection.
Further, the rotation centering fluted disc of described profile of tooth flange detection utensil also is connected with described pedestal by surface bearing.
Above-mentioned improvement project can be implemented alone or in combination in the situation that do not conflict.
The beneficial effect that the utility model brings: the technical scheme that the utility model provides, by using dial gauge, clock gauge or super clock gauge to the detection of profile of tooth flange two symmetry directions to be measured, according to the numerical value that detects, determine its error, have structure ingenious, cost is relatively low, detect fast advantage.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is profile of tooth flange arrangement schematic diagram;
Fig. 2 is Fig. 1 profile of tooth flange field of conjugate action structural representation;
Fig. 3 is embodiment profile of tooth flange detecting device lamps structure schematic diagram;
Fig. 4 is that the A-A of Fig. 3 is to structural representation;
Fig. 5 is that the B-B of Fig. 3 is to structural representation;
Fig. 6 be among Fig. 4 C-C to structural representation;
Fig. 7 is the second core shaft structure schematic diagram.
Embodiment
To profile of tooth flange detection utensil shown in Figure 6, has pedestal 6 such as Fig. 3; Be positioned at the rotation centering fluted disc 26 that profile of tooth flange to be measured is installed on the described pedestal 6; Be positioned at the unsteady fluted disc 7 of described rotation centering fluted disc inside; Can insert described profile of tooth flange the first earhole 3 and the second earhole 4(and see also Fig. 1) the first mandrel 9; Be fixed in the first linear motion guide 16 on the described pedestal 6; The first slide block 17 that is slidingly connected with described the first linear motion guide 16; Be fixed in the first digital display dial gauge 15 on described the first slide block 17; Be fixed in the second linear motion guide 21 on the described pedestal 6; The second slide block 19 that is slidingly connected with described the second linear motion guide 21; Be fixed in the second digital display dial gauge 20 on described the second slide block 19; Be fixed in the reference field baffle plate 18 that described pedestal 6 is positioned at described the second digital display dial gauge 20 gauge head the place aheads, described the second slide block 19 nearly profile of tooth flange ends to be measured have a plane vertical with described the second linear motion guide 21; Described the first mandrel 9 comprises the first semiaxis 12 and the second semiaxis 13, the first end of described the first semiaxis 12 has axial bore, the first end of described the second semiaxis 13 has the axial boss that is slidingly connected with described the first semiaxis 12 axial bore, nearly the first semiaxis of described axial boss 12 ends have axial bore, have Compress Spring 14 in the axial bore of described the second semiaxis 13; Have on the second end face of cylinder of described the first semiaxis 12 and stretch into profile of tooth flange the first annular groove 2(to be measured and see also Fig. 1) in the first clamp 23 and be positioned at the first steel ball 11 on described the first clamp 23 opposite side faces of cylinder; Have on the second end face of cylinder of described the second semiaxis 13 and stretch into profile of tooth flange the second annular groove 5(to be measured and see also Fig. 1) in the second clamp 22 and be positioned at the second steel ball 10 on described the second clamp 22 opposite side faces of cylinder; Described the first clamp 23 equates with the second end end face distance of described the second clamp 22 to described the second semiaxis 13 to the second end end face distance of described the first semiaxis 12, described the second steel ball 10 and the first steel ball 11 are connected with Compress Spring, described steel ball withstands under spring-force driven dual on the flange earhole inwall, so that clamp snaps in the annular groove, described the first mandrel 9 also comprises the caging bolt 24 of described the first semiaxis 12 of restriction and the second semiaxis 13 slide displacements, caging bolt 24 can limit two-semiaxle and can mutually not break away from, after the first mandrel 9 installs in profile of tooth flange the first earhole 3 and the second earhole 4, further screw and to fix its position, improve the degree of accuracy that detects.As shown in Figure 7, the profile of tooth flange detects utensil and has the second mandrel 25, the two ends of described the second mandrel 25 have with profile of tooth flange the first earhole 3 to be measured and the second earhole 4(see also Fig. 1) right cylinder that removably connects of activity, described the second mandrel 25 has the two mutual parallel planes that form after cutting in part between the first earhole 3 and the second earhole 4, be distributed in to two plane symmetry the axis both sides of the second mandrel 25.Rotation centering fluted disc 26 is rotationally connected with pedestal 6 by the first conical bearing 28, is connected with pedestal 6 by surface bearing 27, and the fluted disc 7 that floats is rotationally connected by the axial bore of the second bearing 29 with rotation centering fluted disc 26.As shown in Figure 6, described rotation centering fluted disc 26 and unsteady fluted disc 7 all have two symmetries and tooth profile of tooth flange engagement to be checked, during detection, by the relative motion between centering fluted disc 26 and the unsteady fluted disc 7, gap when elimination causes its engaging tooth and the toe joint on the rotation centering fluted disc 26 tactile because of profile of tooth flange machining precision error to be checked, thereby eliminate the angle error of profile of tooth flange engaging tooth 1 to be checked to the impact of accuracy of detection, improve accuracy of detection.
Detailed process when profile of tooth flange to be checked is detected is as follows: profile of tooth flange 8 engaging tooths to be checked are fixedly mounted on the rotation centering fluted disc 26, by the relative motion between centering fluted disc 26 and the unsteady fluted disc 7, the tooth close contact that profile of tooth flange to be checked and rotation centering fluted disc 26 are reached on the fluted disc 7 that floats, eliminate profile of tooth flange to be checked bottom engaging tooth 1 approximately 70 ° of angle mismachining tolerances on the impact of testing result, profile of tooth flange 8 to be checked is fixed on profile of tooth flange to be checked on rotation centering fluted disc 26 and the unsteady fluted disc 7 with bolt with after rotation centering fluted disc 26 cooperates centering.The first mandrel 9 is packed in first earhole 3 and the second earhole 4 of profile of tooth flange 8, the first clamp 23 and the second clamp 22 snap in respectively the first annular groove 2 and the second annular groove 5, the top of the first steel ball 11 and the second steel ball 10 is under the effect of its Compress Spring, push up respectively the first earhole 3 and the second earhole 4, the first mandrel 9 is fixed in the first earhole 3 and the second earhole 4, under the effect of the first Compress Spring 14, the first clamp 23 and the second clamp 22 compress with the proximal end face of the first annular groove 2 and the second annular groove 5 respectively.Rotation centering fluted disc 26 and the fluted disc 7 that floats, make the measuring staff axis of the first digital display dial gauge 15 perpendicular to the end face of the first mandrel 9, mobile the first slide block 17 makes the gauge head of the first digital display dial gauge 15 and the first end contact of the first mandrel 9, the first end face by the first digital display dial gauge 15 centerings the first mandrel 9 makes zero the reading of the first digital display dial gauge 15.Push the first slide block 17 open and make the gauge head of the first digital display dial gauge 15 leave the first mandrel 9, rotation centering fluted disc 26 and the fluted disc 7 that floats are with profile of tooth flange 8 rotations to be checked approximately 180
oMake the measuring staff axis of the first digital display dial gauge 15 perpendicular to the end face of the first mandrel 9, mobile the first slide block 17 makes the gauge head of the first digital display dial gauge 15 and the second end contact of the first mandrel 9, the second end face by the first digital display dial gauge 15 centerings the first mandrel 9, the reading of the first digital display dial gauge 15 is the first annular groove 2 and the second annular groove 5 to perpendicular to the field of conjugate action and through the range difference of center A point straight line, reflects two annular grooves to the symmetry at profile of tooth flange 8 centers.Error is less, and its symmetry is better, and Product Precision is higher.
Pushing the first slide block 17 open makes the gauge head of the first digital display dial gauge 15 leave the first mandrel 9 end faces.Stretch out direction to the first steel ball 11 and the second steel ball 10 and apply an acting force, under the retroaction of the first earhole 3 and the second earhole 4, the spring of the first steel ball 11 and the second steel ball 10 is compressed, the first clamp 23 and the second clamp 22 break away from the first annular groove 2 and the second annular groove 5, unload the first mandrel 9.Change the second mandrel 25, mobile the second slide block 19 makes the vertical plane of the second slide block 19 nearly profile of tooth flange ends to be measured and the second linear motion guide 21 contact with the first cutting plane of the second mandrel 25 and is close to, its plane of centering, the gauge head of the second digital display dial gauge 20 contacts with reference field baffle plate 18, and the reading that makes of adjusting the second digital display dial gauge 20 makes zero.Push the second slide block 19 open, rotation centering fluted disc 26 and the fluted disc 7 that floats make profile of tooth flange 8 rotations to be checked approximately 180
oMobile the second slide block 19 makes the vertical plane of the second slide block 19 nearly profile of tooth flange ends to be measured and the second linear motion guide 21 contact with the second cutting plane, its plane of centering, survey measurements between the second digital display dial gauge 20 and the reference field baffle plate 18 be two earhole center lines with perpendicular to the field of conjugate action and through the range difference of center A point straight line, error is less, its symmetry is better, and Product Precision is higher.
Obviously, the utility model is not limited to above preferred implementation, also can be in the spirit of the utility model claim and instructions restriction, carry out conversion and the improvement of various ways, can solve same technical matters, and obtain the technique effect of expection, therefore do not repeat.Those of ordinary skill in the art can be from the disclosed content of the utility model directly or all schemes of associating, as long as within the spirit that claim limits, also belong to protection domain of the present utility model.
Claims (8)
1. a profile of tooth flange detects utensil, it is characterized in that: have pedestal (6); Be positioned at the upper rotation centering fluted disc (26) that profile of tooth flange to be measured is installed of described pedestal (6); The first mandrel (9) that at least one and described profile of tooth flange the first earhole (3) and the second earhole (4) removably connect; At least one the first linear motion guide (16) that is fixed on the described pedestal (6); The first slide block (17) that is slidingly connected with described the first linear motion guide (16); Be fixed in the first dial gauge, clock gauge or super clock gauge (15) on described the first slide block (17), described the first mandrel (9) comprises the first semiaxis (12) and the second semiaxis (13), described the first semiaxis (12) and the second semiaxis (13) are socketed or are slidingly connected together, described the first semiaxis (12) and the second semiaxis (13) have the clamp (23,22) that stretches in the profile of tooth flange annular groove to be measured away from its link, described clamp equates to the distance of its semiaxis away from link.
2. profile of tooth flange according to claim 1 detects utensil, it is characterized in that: the first end of described the first semiaxis (12) has axial bore, the first end of described the second semiaxis (13) has the axial boss that is slidingly connected with described the first semiaxis (12) axial bore, nearly the first semiaxis of described axial boss (12) end has axial bore, has the first spring (14) in the axial bore of described the second semiaxis (13); Have on the second end face of cylinder of described the first semiaxis (12) and stretch into the first clamp (23) in profile of tooth flange the first annular groove to be measured (2) and be positioned at the first steel ball (11) on described the first clamp (23) opposite side face of cylinder; Have on the second end face of cylinder of described the second semiaxis (13) and stretch into the second clamp (22) in profile of tooth flange the second annular groove to be measured (5) and be positioned at the second steel ball (10) on described the second clamp (22) opposite side face of cylinder; Described the second steel ball (10) and the first steel ball (11) are connected with Compress Spring, described steel ball withstands under spring-force driven dual on profile of tooth flange the first earhole to be measured (3) and the second earhole (4) inwall, so that in the first clamp (23) and the described annular groove of the second clamp (22) card people.
3. profile of tooth flange according to claim 2 detects utensil, it is characterized in that: described the first mandrel (9) also comprises the caging bolt (24) of restriction described the first semiaxis (12) and the second semiaxis (13) slide displacement.
4. profile of tooth flange according to claim 1 detects utensil, it is characterized in that: also have at least one the second linear motion guide (21) that is fixed on the described pedestal (6); The second slide block (19) that is slidingly connected with described the second linear motion guide (21); Be fixed in the second dial gauge, clock gauge or super clock gauge (20) on described the second slide block (19); Be fixed in the reference field baffle plate (18) that described pedestal (6) is positioned at described the second dial gauge, clock gauge or super clock gauge (20) gauge head the place ahead, the nearly profile of tooth flange end to be measured of described the second slide block (19) has a plane vertical with described the second linear motion guide (21).
5. profile of tooth flange according to claim 4 detects utensil, and it is characterized in that: also have the second mandrel (25), the two ends of described the second mandrel (25) have the right cylinder that cooperates with profile of tooth flange the first earhole to be measured (3) and the second earhole (4).
6. profile of tooth flange according to claim 3 detects utensil, it is characterized in that: described the second mandrel (25) is positioned between the first earhole (3) and the second earhole (4) and partly has at least once the plane of cutting, and described plane is parallel with the axis of the second mandrel (25).
7. profile of tooth flange according to claim 1 detects utensil, it is characterized in that: also have the unsteady fluted disc 7 that is positioned at described rotation centering fluted disc (26) inside, described rotation centering fluted disc (26) is rotationally connected by clutch shaft bearing (28) and described pedestal (6), and described unsteady fluted disc (7) is rotationally connected by the axial bore of the second bearing and described rotation centering fluted disc (26).
According to claim 1 or 7 described profile of tooth flanges detect utensils, it is characterized in that: described rotation centering fluted disc (26) also is connected with described pedestal (6) by surface bearing (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434889 CN202747962U (en) | 2012-08-30 | 2012-08-30 | Detection tool for tooth form flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434889 CN202747962U (en) | 2012-08-30 | 2012-08-30 | Detection tool for tooth form flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747962U true CN202747962U (en) | 2013-02-20 |
Family
ID=47707340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220434889 Expired - Fee Related CN202747962U (en) | 2012-08-30 | 2012-08-30 | Detection tool for tooth form flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829690A (en) * | 2012-08-30 | 2012-12-19 | 长沙插拉刨机电设备制造有限公司 | Toothed flange detection instrument |
| CN108413852A (en) * | 2018-05-17 | 2018-08-17 | 湖北三环锻造有限公司 | Plane teeth symmetry rapid detection method and its device |
-
2012
- 2012-08-30 CN CN 201220434889 patent/CN202747962U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829690A (en) * | 2012-08-30 | 2012-12-19 | 长沙插拉刨机电设备制造有限公司 | Toothed flange detection instrument |
| CN102829690B (en) * | 2012-08-30 | 2015-04-29 | 长沙插拉刨机电设备制造有限公司 | Toothed flange detection instrument |
| CN108413852A (en) * | 2018-05-17 | 2018-08-17 | 湖北三环锻造有限公司 | Plane teeth symmetry rapid detection method and its device |
| CN108413852B (en) * | 2018-05-17 | 2023-12-08 | 湖北三环锻造有限公司 | Method and device for rapidly detecting symmetry degree of planar teeth |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150830 |
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| EXPY | Termination of patent right or utility model |