CN106767616B - A high-precision axial length measuring device - Google Patents
A high-precision axial length measuring device Download PDFInfo
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- CN106767616B CN106767616B CN201611179368.4A CN201611179368A CN106767616B CN 106767616 B CN106767616 B CN 106767616B CN 201611179368 A CN201611179368 A CN 201611179368A CN 106767616 B CN106767616 B CN 106767616B
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- bottom plate
- sleeve
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- bolt
- axial length
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- 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
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of high-precision axial length measurement devices, comprising: bottom plate, pedestal fixing bolt, sleeve pedestal, top feeding bolt, top adjusting bolt, guiding sleeve, first top, the second top, top fastening bolt, transiting rod and support column；Wherein, sleeve pedestal is connected with the bottom plate；Guiding sleeve is connected with sleeve pedestal；First top is embedded in the first cavity of guiding sleeve；The top side wall for adjusting bolt and being set to sleeve pedestal, top adjusting bolt being capable of the position of adjustable guide sleeve in the x direction and the y direction；Sleeve pedestal offers the second cavity, and top feeding bolt passes through the hole that sleeve pedestal opens up in the second cavity and mutually crimps with the first top bottom end；Second top is connected by the top fastening bolt with one end of transiting rod；The upper end of support column is connected with the other end of transiting rod；The lower end of support column is connected with bottom plate.The present invention can be realized efficient, the accurate on-position measure of high-precision axial dimension.
Description
Technical Field
The invention relates to the field of gyro motor component measurement, in particular to a high-precision axial length measuring device.
Background
The small-size and high-precision parts such as the shaft are key parts of the gyro motor, and the precision of the parts directly determines the performance and the reliability of the gyro motor. Because the axial length dimension precision of the shaft is higher and the contact surface of each section of the shaft is very small, the measuring tools such as a vernier caliper and the like cannot be used for measuring. The axial length dimension of the conventional shaft is measured by adopting a traditional universal tool microscope, the horizontal direction of the shaft is supported and fixed by matching two tips of the universal tool microscope with tip holes at two ends of the shaft, an inspector needs to read a linear scale value corresponding to the end surface of each section of the shaft through a contrast eyepiece and then subtract the linear scale values to obtain the axial length dimension of the shaft surfaces at the two ends.
In the measuring process, an operator needs to repeat similar actions, find the line scale values corresponding to the end faces for many times and record the line scale values in time, and when the batch size is large, the visual and mental consumption is high, so that the inspection efficiency is low and visual errors exist; when the end face of the shaft is not completely parallel to the line scale of the universal tool microscope, namely, a line cannot be found accurately from the end face of the shaft and is superposed with the line scale, the problem that the measurement cannot be carried out occurs at the moment, and inspectors need to find out the scale lines corresponding to a highest point and a lowest point respectively and calculate the scale lines respectively, so that visual errors exist.
Disclosure of Invention
The technical problem solved by the invention is as follows: compared with the prior art, the high-precision axial length measuring device is provided, and high-precision axial size is efficiently and accurately measured in place.
The purpose of the invention is realized by the following technical scheme: a high precision axial length measuring device comprising: the center adjusting device comprises a bottom plate, a base fixing bolt, a sleeve base, a center feeding bolt, a center adjusting bolt, a guide sleeve, a first center, a second center, a center fastening bolt, a transition rod and a support column; the sleeve base is connected with the bottom plate; the guide sleeve is connected with the sleeve base; the first tip is embedded in a first cavity of the guide sleeve; the centre adjusting bolt is arranged on the side wall of the sleeve base and can adjust the positions of the guide sleeve in the X direction and the Y direction; the sleeve base is provided with a second cavity, and the tip feeding bolt penetrates through a hole formed in the sleeve base in the second cavity and is in pressure joint with the bottom end of the first tip; the second tip is connected with one end of the transition rod through the tip fastening bolt; the upper end of the supporting column is connected with the other end of the transition rod; the lower end of the supporting column is connected with the bottom plate.
In the high-precision axial length measuring device, the sleeve base is in threaded connection with the bottom plate through the base fixing screw.
In the high-precision axial length measuring device, the lower end of the support column is in threaded connection with the bottom plate through a column fastening bolt.
In the high-precision axial length measuring device, the upper part of the bottom plate is provided with a boss, and the lower part of the bottom plate is provided with a bottom plate groove; the sleeve base is connected with the boss of the bottom plate; the lower end of the supporting column is connected with the boss of the bottom plate.
In the high-precision axial length measuring device, the support column comprises a positioning table, a transition cylinder and a bottom surface cylinder; wherein the positioning table, the transition cylinder and the bottom surface cylinder are connected in sequence; the positioning table is connected with the other end of the transition rod, wherein the axial direction of the transition rod is vertical to the axial direction of the support column; the bottom surface cylinder is connected with the bottom plate.
In the high-precision axial length measuring device, the second center comprises a tip part and a positioning surface; wherein, the apical part is connected with the positioning surface; one end of the transition rod is provided with a threaded hole, and correspondingly, the positioning surface is provided with a first through hole matched with the threaded hole; the tip fastening bolt is screwed into the first threaded hole through the first through hole.
In the high-precision axial length measuring device, the sleeve base is provided with a circular groove, and the side wall of the guide sleeve is embedded in the circular groove.
In the high-precision axial length measuring device, the side wall of the sleeve base is uniformly provided with four second threaded holes along the circumferential direction; the number of the tip adjusting bolts is four, and each tip adjusting bolt is screwed into the corresponding second threaded hole.
In the above high-precision axial length measuring device, the first center includes a second center portion, a middle section shaft, and a bottom end cylinder; wherein the second apical part, the middle section shaft and the bottom end cylinder are connected in sequence; the first cavity is a cylindrical cavity, the bottom end cylinder is positioned in the first cavity, and the central axis of the bottom end cylinder is the same as that of the first cavity; a second through hole is formed in the center of the upper end face of the guide sleeve, and the middle section shaft penetrates through the second through hole.
Compared with the prior art, the invention has the following beneficial effects:
(1) the structure of the invention can realize high-precision axial dimension high-efficiency and accurate in-situ measurement;
(2) according to the invention, the first tip and the second tip can realize accurate alignment of the measuring element;
(3) the bottom plate of the invention forms a bottom plate groove on the bottom surface, thereby reducing the weight of the bottom plate and saving materials;
(4) according to the invention, the second cavity is formed in the middle part of the sleeve base, so that enough operation space is provided for an operator to rotate the operating center feeding bolt, and the operation feasibility and comfort are improved.
Drawings
FIG. 1 is a schematic view of the construction of a high precision axial length measuring device of the present invention;
FIG. 2(a) is a schematic view of a base plate of the present invention;
FIG. 2(b) is another schematic view of the base plate of the present invention;
FIG. 3(a) is a schematic view of a support post of the present invention;
FIG. 3(b) is another schematic view of the support post of the present invention;
FIG. 3(c) is yet another schematic view of the support post of the present invention;
FIG. 4 is a schematic view of a transition bar of the present invention;
fig. 5(a) is a schematic view of a second point of the present invention;
fig. 5(b) is another schematic view of a second point of the present invention;
fig. 5(c) is a further schematic view of a second point of the present invention;
FIG. 6(a) is a schematic view of a cartridge base of the present invention;
FIG. 6(b) is another schematic view of the cartridge base of the present invention;
FIG. 6(c) is yet another schematic view of the cartridge mount of the present invention;
FIG. 7(a) is a schematic view of a guide sleeve of the present invention;
FIG. 7(b) is another schematic view of a guide sleeve of the present invention;
fig. 8 is a schematic view of a first point of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a high-precision axial length measuring apparatus of the present invention. As shown in fig. 1, the high-precision axial length measuring apparatus includes: the center adjusting device comprises a bottom plate 1, a sleeve base 3, a center feeding bolt 4, a center adjusting bolt 5, a guide sleeve 6, a first center 7, a second center 8, a center fastening bolt 9, a transition rod 10 and a support column 12; wherein,
the sleeve base 3 is connected with the bottom plate 1. Specifically, the sleeve base 3 is in threaded connection with the bottom plate 1 through a base fixing screw 2.
The guide sleeve 6 is connected with the sleeve base 3;
the first centre 7 is embedded in the first cavity 61 of the guide sleeve 6;
the centre adjusting bolt 5 is arranged on the side wall of the sleeve base 3, and the position of the guide sleeve 6 in the X direction and the Y direction can be adjusted by the centre adjusting bolt 5;
the sleeve base 3 is provided with a second cavity 31, and the tip feeding bolt 4 penetrates through a hole formed in the sleeve base 3 in the second cavity 31 to be in pressure joint with the bottom end of the first tip 7. In particular, the first tip 7 can be adjusted to move vertically in fig. 1 by adjusting the tip feed bolt 4.
The second centre 8 is connected with one end of a transition rod 10 through a centre fastening bolt 9;
the upper end of the supporting column 12 is connected with the other end of the transition rod 10;
the lower end of the support column 12 is connected to the base plate 1.
Specifically, the bottom plate 1, the sleeve base 3, the guide sleeve 6, the first tip 7, the second tip 8 and the tip fastening bolt 9 are made of 45# steel; transition pole 10 and support column 12 adopt 2A12 aluminum alloy, and from the device structure, transition pole 10 is the hanging beam, and fixed mode is its left end face complex 4 screws, has a moment under the action of gravity:l is the total length of the transition rod 10, G1 is the weight of the transition rod 10, G2 is the weight of the second tip 8 and the tip fastening bolt 9, so in order to reduce the stress as much as possible and increase the rigidity of the rod, the transition rod 10 is made of 2A12 aluminum alloy material with better rigidity.
FIG. 2(a) is a schematic view of a base plate of the present invention; fig. 2(b) is another schematic view of the base plate of the present invention. As shown in fig. 2(a) and 2(b), the upper portion of the base plate 1 is provided with a boss 110, and the lower portion thereof is provided with a base plate groove 120; wherein, the sleeve base 3 is connected with the boss 110 of the bottom plate 1; the lower end of the support post 12 is connected to the boss 110 of the base plate 1.
Specifically, a boss 110 is formed in the middle of the upper portion of the base plate 1, and a base plate groove 120 is formed in the lower portion of the upper portion of the base plate 1, so that the contact area between the support column and the base plate 1 and the contact area between the sleeve base and the base plate 1 are reduced, the quality of a machined surface is improved, and unnecessary machining amount is reduced. Forming 8M 6 threaded holes 1101 in the boss 110, wherein every four M6 threaded holes 1101 are in a group, one group is used for connecting the supporting column with the bottom plate 1, specifically, the supporting column is provided with holes corresponding to the group of M6 threaded holes 1101, and the column fastening bolt 13 passes through the group of M6 threaded holes 1101 and the holes corresponding to the group of M6 threaded holes 1101 formed in the supporting column to connect the supporting column with the bottom plate 1; and the other group is used for connecting the sleeve base with the bottom plate 1, specifically, the sleeve base is provided with holes corresponding to the group of M6 threaded holes 1101, and the column fastening bolts 13 pass through the group of M6 threaded holes 1101 and the holes corresponding to the group of M6 threaded holes 1101 formed in the sleeve base to connect the sleeve base with the bottom plate 1. Meanwhile, the distance between the two groups of threads is larger than the sum of the radiuses of the maximum circles of the support column and the sleeve base, so that the two groups of threads are prevented from interfering when being installed, in addition, the binding face is a boss 110, and the width of the boss 110 is larger than the diameter of the outer circle of the bottom face of the sleeve base and the bottom face of the support column, so that the binding degree is ensured. A floor groove 120 is formed at the bottom surface, thereby reducing the weight of the floor and saving materials.
FIG. 3(a) is a schematic view of a support post of the present invention; FIG. 3(b) is another schematic view of the support post of the present invention; figure 3(c) is yet another schematic view of the support post of the present invention. As shown in fig. 3(a), 3(b) and 3(c), the support column 12 includes a positioning stage 121, a transition cylinder 122 and a bottom surface cylinder 123; wherein,
the positioning table 121, the transition cylinder 122 and the bottom surface cylinder 123 are connected in sequence. Specifically, the positioning table 121, the transition cylinder 122 and the bottom cylinder 123 are integrally formed.
The positioning table 121 is connected to the other end of the transition rod 10, wherein the axial direction of the transition rod 10 is perpendicular to the axial direction of the support column 12. Specifically, the positioning table 121 is connected to the left end (shown in fig. 1) of the transition rod 10, and further, the positioning table 121 is provided with four threaded holes, correspondingly, the left end of the transition rod 10 is provided with corresponding threaded holes, and the rod fastening bolt 11 passes through the threaded hole formed in the positioning table 121 and the corresponding threaded hole formed in the left end of the transition rod 10 to connect the positioning table 121 and the transition rod 10.
The bottom surface cylinder 123 is connected to the base plate 1. Specifically, the bottom surface cylinder 123 is screwed to the base plate 1 by the column fastening bolt 13.
Fig. 5(a) is a schematic view of a second point of the present invention; fig. 5(b) is another schematic view of a second point of the present invention; fig. 5(c) is yet another schematic view of the second point of the present invention. As shown in fig. 5(a), 5(b) and 5(c), the second tip 8 includes a tip portion 81 and a positioning surface 82; wherein,
the tip portion 81 is connected to the positioning surface 82. Specifically, the apex portion 81 and the positioning surface 82 are integrally formed.
Fig. 4 is a schematic view of a transition bar of the present invention. As shown in fig. 4, a threaded hole 101 is opened at the upper end of the transition rod 10, and the upper end of the transition rod 10 in fig. 4 corresponds to the right end of the transition rod 10 in fig. 1.
Specifically, the positioning surface 82 is provided with a first through hole 821 matched with the threaded hole 101; the tip fastening bolt 9 is screwed into the first threaded hole 101 through the first through hole 821 to fixedly connect the second tip 8 and the transition rod 10.
FIG. 6(a) is a schematic view of a cartridge base of the present invention; FIG. 6(b) is another schematic view of the cartridge base of the present invention; fig. 6(c) is yet another schematic view of the cartridge mount of the present invention. As shown in fig. 6(a), 6(b) and 6(c), the sleeve base 3 is formed with a circular groove 31, the side wall of the guide sleeve 6 is fitted into the circular groove 31, and the circular groove 31 serves to receive the guide sleeve 6. The side wall of the sleeve base 3 is uniformly provided with four second threaded holes 32 along the circumferential direction; the number of the center adjusting bolts 5 is four, each center adjusting bolt 5 is screwed into the corresponding second threaded hole 32, and the center adjusting bolts 5 and the second threaded holes 32 are arranged. The movement of the guide sleeve 6 in the horizontal plane perpendicular to the paper plane, i.e. the position of the guide sleeve 6 in the X-direction and the Y-direction, can be adjusted by adjusting the tip adjusting bolt 5. The sleeve base 3 is provided with a second cavity 31, the tip feeding bolt 4 penetrates through a hole 20 formed in the sleeve base 3 in the second cavity 31 to be in pressure connection with the bottom end of the first tip 7, and the first tip 7 is driven to move and adjust in the Z direction by rotating the tip feeding bolt 4. A second cavity 31 is formed in the middle of the sleeve base 3, so that sufficient operation space is provided for an operator to rotate the operating center feeding bolt 4, and operation feasibility and comfort are improved.
FIG. 7(a) is a schematic view of a guide sleeve of the present invention; fig. 7(b) is another schematic view of a guide sleeve of the present invention. As shown in fig. 7(a), the guide sleeve 6 is opened with a first cavity 61, and the first cavity 61 is a cylindrical cavity.
Fig. 8 is a schematic view of a first point of the present invention. As shown in fig. 8, the first finial 7 includes a second apical portion 28, a mid-section shaft 29 and a bottom end cylinder 30; wherein,
the second apex portion 28, the middle shaft 29 and the bottom end cylinder 30 are connected in sequence. Specifically, the second apex 28, the intermediate shaft 29 and the bottom end cylinder 30 are integrally formed.
The first cavity 61 is a cylindrical cavity, the bottom end cylinder 30 is positioned in the first cavity 61, and the diameter of the end surface of the bottom end cylinder 30 is approximately equal to that of the first cavity 61, so that the bottom end cylinder 30 cannot move left and right, and the measurement accuracy is improved.
The central axis of the base cylinder 30 is the same as the central axis of the first cavity 61. Thereby ensuring high measurement accuracy.
As shown in fig. 7(b), a second through hole 62 is formed in the center of the upper end surface of the guide sleeve 6, and the middle shaft 29 passes through the second through hole 62.
The parts with the dimensional accuracy tolerance of +/-0.05 mm and +/-0.02 mm for measuring the axial length are taken as an example. First a standard cylindrical rod is prepared with a roundness within 0.001 mm. Install standard cylindrical rod between first top 7 and second top 8, the second apex portion 28 of first top 7 withstands the apex hole of standard cylindrical rod lower extreme, and the apex hole of standard cylindrical rod upper end is withstood to the apex portion 81 of second top 8, and on the one hand, apex fastening bolt passes first through-hole screw in transition bar's first screw hole 101 in, notices to need to keep certain fastening allowance, realizes the preliminary fixed of second top. On the other hand, the center feeding bolt penetrates through a hole formed in the sleeve base in the second cavity, so that the center feeding bolt is matched with the inner thread of the sleeve base and is in contact support with the bottom surface of the first center, the first center is fixed, and the first center can move up and down by rotating the center feeding bolt. Center holes at the upper end and the lower end of the standard cylindrical rod are respectively matched with a first center 7 and a second center 8, and the center feeding bolt 4 is screwed to realize primary axial fixation. And then, a height gauge needle with the precision of 0.002mm is used for contacting and having a certain compression amount, the positive bus and the side bus of the standard cylindrical rod are respectively measured, and the run-out of the positive bus and the side bus of the standard cylindrical rod is finally realized within 0.002mm by adjusting the position of the second tip 8 and the roll-swing angle of the first tip 7. The first point 7 is then tightened. After the calibration of the measuring device is completed, the center feeding bolt 4 is rotated downwards, the standard cylindrical rod is disassembled, a workpiece to be measured (the upper end and the lower end of which are both provided with center holes) is placed, and the center feeding bolt 4 is rotated upwards to fix the workpiece to be measured. At the moment, the height gauge can be used for realizing high-precision measurement of the axial length, the axial length of the upper half part of the shaft is measured at first, then the shaft is adjusted by 180 degrees, and the whole measuring device is adjusted and calibrated, so that the axial length of the lower half part of the shaft can be directly measured. Table 1 is a table for comparing the dimensional data of the upper half of the measurement axis, and Table 2 is a table for comparing the dimensional data of the lower half of the measurement axis.
TABLE 1
| Serial number | Measured size | Universal assay | Tooling detection | Error of the measurement |
| 1 | 5.74±0.03 | 5.742 | 5.741 | 0.001 |
| 2 | 6±0.05 | 6.032 | 6.030 | 0.002 |
| 3 | 9.6±0.1 | 9.599 | 9.602 | 0.003 |
TABLE 2
| Serial number | Measured size | Universal assay | Tooling detection | Error of the measurement |
| 1 | 8.6±0.1 | 8.590 | 8.593 | 0.003 |
| 2 | 0.5±0.1 | 0.497 | 0.499 | 0.002 |
| 3 | 5.8±0.05 | 5.814 | 5.816 | 0.002 |
The measuring device can realize high-efficiency and accurate in-situ measurement of high-precision axial dimension; in addition, the first tip and the second tip can realize accurate alignment of the measuring element; in addition, the bottom plate of the invention forms a bottom plate groove on the bottom surface, thereby reducing the weight of the bottom plate and saving materials; in addition, the second cavity is formed in the middle of the sleeve base, so that enough operation space is provided for an operator to rotate the operating center feeding bolt, and the operation feasibility and the operation comfort are improved.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A high-precision axial length measuring device, characterized by comprising: the center adjusting device comprises a bottom plate (1), a base fixing bolt (2), a sleeve base (3), a center feeding bolt (4), a center adjusting bolt (5), a guide sleeve (6), a first center (7), a second center (8), a center fastening bolt (9), a transition rod (10) and a support column (12); wherein,
the sleeve base (3) is connected with the bottom plate (1);
the guide sleeve (6) is connected with the sleeve base (3);
the first centre (7) is embedded in a first cavity (61) of the guide sleeve (6);
the centre adjusting bolt (5) is arranged on the side wall of the sleeve base (3), and the position of the guide sleeve (6) in the X direction and the Y direction can be adjusted by the centre adjusting bolt (5);
the sleeve base (3) is provided with a second cavity (31), and the tip feeding bolt (4) penetrates through a hole formed in the sleeve base (3) in the second cavity (31) and is in pressure joint with the bottom end of the first tip (7);
the second tip (8) is connected with one end of the transition rod (10) through the tip fastening bolt (9);
the upper end of the supporting column (12) is connected with the other end of the transition rod (10);
the lower end of the supporting column (12) is connected with the bottom plate (1);
wherein the second apex (8) comprises an apex portion (81) and a locating surface (82); wherein,
the top tip part (81) is connected with the positioning surface (82);
one end of the transition rod (10) is provided with a threaded hole (101), and correspondingly, the positioning surface (82) is provided with a first through hole (821) matched with the threaded hole (101);
the tip fastening bolt (9) is screwed into the first threaded hole (101) through the first through hole (821).
2. The high precision axial length measuring device of claim 1, wherein: the sleeve base (3) is in threaded connection with the bottom plate (1) through a base fixing bolt (2).
3. The high precision axial length measuring device of claim 1, wherein: the lower end of the supporting column (12) is in threaded connection with the bottom plate (1) through a column fastening bolt (13).
4. The high precision axial length measuring device of claim 1, wherein: a boss (110) is arranged at the upper part of the bottom plate (1), and a bottom plate groove (120) is formed at the lower part of the bottom plate; wherein,
the sleeve base (3) is connected with a boss (110) of the bottom plate (1);
the lower end of the supporting column (12) is connected with the boss (110) of the bottom plate (1).
5. The high precision axial length measuring device of claim 1, wherein: the supporting column (12) comprises a positioning table (121), a transition cylinder (122) and a bottom surface cylinder (123); wherein,
the positioning table (121), the transition cylinder (122) and the bottom surface cylinder (123) are connected in sequence;
the positioning table (121) is connected with the other end of the transition rod (10), wherein the axial direction of the transition rod (10) is perpendicular to the axial direction of the support column (12);
the bottom surface cylinder (123) is connected with the bottom plate (1).
6. The high precision axial length measuring device of claim 1, wherein: circular slot (33) have been seted up to sleeve base (3), the lateral wall of guide sleeve (6) inlays and locates circular slot (33).
7. The high precision axial length measuring device of claim 1, wherein: the side wall of the sleeve base (3) is uniformly provided with four second threaded holes (32) along the circumferential direction; wherein,
the number of the tip adjusting bolts (5) is four, and each tip adjusting bolt (5) is screwed into the corresponding second threaded hole (32).
8. The high precision axial length measuring device of claim 1, wherein: the first tip (7) comprises a second tip part (28), a middle section shaft (29) and a bottom end cylinder (30); wherein,
the second top tip part (28), the middle section shaft (29) and the bottom end cylinder (30) are connected in sequence;
the first cavity (61) is a cylindrical cavity, the bottom end cylinder (30) is positioned in the first cavity (61), and the central axis of the bottom end cylinder (30) is the same as that of the first cavity (61);
a second through hole (62) is formed in the center of the upper end face of the guide sleeve (6), and the middle section shaft (29) penetrates through the second through hole (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179368.4A CN106767616B (en) | 2016-12-19 | 2016-12-19 | A high-precision axial length measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179368.4A CN106767616B (en) | 2016-12-19 | 2016-12-19 | A high-precision axial length measuring device |
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| CN106767616A CN106767616A (en) | 2017-05-31 |
| CN106767616B true CN106767616B (en) | 2019-06-18 |
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| CN201611179368.4A Active CN106767616B (en) | 2016-12-19 | 2016-12-19 | A high-precision axial length measuring device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115876136A (en) * | 2022-12-14 | 2023-03-31 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Plunger rod length measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210830A (en) * | 1995-02-07 | 1996-08-20 | Kyocera Corp | Non-contact type length measuring device |
| CN202101657U (en) * | 2011-05-11 | 2012-01-04 | 西安爱德华测量设备股份有限公司 | Coordinate measuring machine provided with positioning function |
| CN203414273U (en) * | 2013-09-11 | 2014-01-29 | 哈尔滨精达测量仪器有限公司 | Novel external gear double-faced layout engaging instrument |
| CN106091884A (en) * | 2016-08-16 | 2016-11-09 | 中航湖南通用航空发动机有限公司 | A kind of for measuring the horizontal to table measurement apparatus of tongue-and-groove centre-to-centre spacing |
-
2016
- 2016-12-19 CN CN201611179368.4A patent/CN106767616B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210830A (en) * | 1995-02-07 | 1996-08-20 | Kyocera Corp | Non-contact type length measuring device |
| CN202101657U (en) * | 2011-05-11 | 2012-01-04 | 西安爱德华测量设备股份有限公司 | Coordinate measuring machine provided with positioning function |
| CN203414273U (en) * | 2013-09-11 | 2014-01-29 | 哈尔滨精达测量仪器有限公司 | Novel external gear double-faced layout engaging instrument |
| CN106091884A (en) * | 2016-08-16 | 2016-11-09 | 中航湖南通用航空发动机有限公司 | A kind of for measuring the horizontal to table measurement apparatus of tongue-and-groove centre-to-centre spacing |
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| CN106767616A (en) | 2017-05-31 |
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