CN106595438B - A kind of angle measurement tool - Google Patents
A kind of angle measurement tool Download PDFInfo
- Publication number
- CN106595438B CN106595438B CN201611038272.6A CN201611038272A CN106595438B CN 106595438 B CN106595438 B CN 106595438B CN 201611038272 A CN201611038272 A CN 201611038272A CN 106595438 B CN106595438 B CN 106595438B
- Authority
- CN
- China
- Prior art keywords
- alidade
- dial
- benchmark architecture
- angle
- reference line
- 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.)
- Active
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 4
- 235000019788 craving Nutrition 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The present invention relates to a kind of angle measurement tools, including the pedestal for placing contact tube, pedestal is equipped with graduated disk structure, the first benchmark architecture for the first straight-tube portion location fit with contact tube and the second benchmark architecture for the second straight-tube portion location fit with contact tube, graduated disk structure includes with graduated dial and can be around the vernier of dial central axis rotation, the center of the reference line scaleover disk of second benchmark architecture, second benchmark architecture can around the rotation of dial central axis and with the vernier synchronized links, the vernier is located at starting point when the reference line of the second benchmark architecture is parallel with the reference line of the first benchmark architecture, terminal is in the reference line of the second benchmark architecture and parallel the second straight-tube portion of contact tube.The bending angle that contact tube can be read with angle measurement tool of the invention, compared with using light to scan angularly measuring machine in the prior art, manufacturing cost is low and easy to operate.
Description
Technical field
The present invention relates to a kind of angle measurement tools.
Background technique
Contact tube is the components in high voltage electric appliance, as shown in Figure 1, the middle part bending of contact tube, it will be entire conductive
Pipe is divided into the first straight-tube portion and the second straight-tube portion, and the first straight-tube portion and the second straight-tube portion form a bending angle a,
The precision of bending angle a is required to meet ± 10 ' in actual production process.In order to detect whether the bending angle of contact tube closes
Lattice, the bending angle for generalling use angular templet and contact tube in the prior art compare, but this method can not read angle
Degree；Or measured using angle measurement machine, although the angle number, higher cost can accurately be read.For upper
Problem is stated, a kind of angle measurement tool is now provided.
Summary of the invention
Contact tube bending angle can be measured the purpose of the present invention is to provide one kind and lower-cost angle is surveyed
Amount tool.
To achieve the above object, the technical scheme is that
A kind of angle measurement tool, including the pedestal for placing contact tube, pedestal be equipped with graduated disk structure, for
First benchmark architecture of the first straight-tube portion location fit of contact tube and for the positioning of the second straight-tube portion of contact tube
Cooperation the second benchmark architecture, graduated disk structure include with angle index dial and can be around dial central axis rotation
Vernier, the center of the reference line scaleover disk of second benchmark architecture, the second benchmark architecture can be around dial central axis
Rotation and with the vernier synchronized links；The vernier is in the reference line of the second benchmark architecture and the reference line of the first benchmark architecture
It is located at starting point when parallel, terminal is in the reference line of the second benchmark architecture and parallel the second straight-tube portion of contact tube.
The vernier is the alidade that assembly setting is rotated coaxially with the dial, and alidade is equipped with equal part angle index
Line, the alidade and dial form vernier angle scale.
The center of dial has the circular hole being embedded in for alidade, and the side wall of circular hole is equipped with flange, passes through on alidade
Releasable connection structure is connected with fixed disk, and the groove entered for the flange, the flange are equipped between alidade and fixed disk
In the groove.
Ball, the upside of fixed disk and trip are equipped between fixed disk and dial and between alidade and dial
R nest is equipped on the downside of bidding quotation, ball is located in R nest.
Pedestal is equipped with the guide rail extended along the reference line direction perpendicular to the first benchmark architecture, and the graduated disk structure is led
It is assemblied on guide rail to activity.
Pedestal is equipped with two parallel guide posts, and guide post constitutes the guide rail, and the downside of dial is equipped with two guide posts one by one
Corresponding two groups of idler wheels with annular groove, idler wheel are located at the inside of two guide posts and the centerline axis parallel of rolling axis and dial,
Two guide posts are stuck in the annular groove of corresponding idler wheel.
First benchmark architecture includes between left and right every two positioning pins being installed on pedestal, the line of centres of two positioning pins
The as reference line of the first benchmark architecture.
Second benchmark architecture includes swing rod and along spaced apart two backing pins in oscillating bar length direction, and swing rod is fixedly arranged on trip
The upside of bidding quotation, one axis is overlapped with the central axis of alidade in two backing pins.
The beneficial effects of the present invention are: be arranged on dial can be around the center of dial for angle measurement tool of the invention
The vernier of axis rotation can read the scale of vernier meaning, and the second benchmark architecture can be swung around the central axis of dial, and
With vernier synchronized links, the angle that vernier was put is the angle that the second benchmark architecture turns over.In use, the first benchmark architecture with
First straight-tube portion location fit of contact tube, keeps the reference line of the first benchmark architecture parallel with the first straight-tube portion, rotation the
Two benchmark architectures make its second straight-tube portion location fit with contact tube, the i.e. reference line of the second benchmark architecture and the second straight tube
Part is parallel.When the reference line of the second benchmark architecture is parallel with the reference line of the first benchmark architecture, vernier is located at start position,
In the second straight-tube portion location fit of the second benchmark architecture and contact tube, vernier is located at final position, vernier point by
Set the angle that the reference line that the angle put to final position is the second benchmark architecture turns over, that is, the bending angle of contact tube
Degree.The bending angle that contact tube can be read using angle measurement tool of the invention, in the prior art use light scan
Angularly measuring machine is compared, and manufacturing cost is low and easy to operate.
Further, vernier of the invention is the alidade with equal part angle index, and alidade and dial form vernier
Bevel protractor structure.When reading, integer part is read according to the angle index on dial, further according to the equal part angle index on alidade
Fractional part is read, the actual rotation angle of alidade is the sum of integer part and fractional part, and measurement accuracy is higher.
Further, graduated disk structure guiding is assemblied on pedestal, can be along the reference line side perpendicular to the first benchmark architecture
The contact tube of different size parameter can be measured to guiding movement by adjusting the position of graduated disk structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of contact tube；
Fig. 2 is the structural schematic diagram of angle measurement tool embodiment 1 of the present invention；
Fig. 3 is the top view of Fig. 2 (alidade is in nulling position)；
Fig. 4 is that (the second benchmark architecture and contact tube, which position, matches for the structural schematic diagram of angle measurement tool embodiment 1 of the present invention
It closes)；
Fig. 5 is the enlarged drawing of C in Fig. 2；
Fig. 6 is the enlarged drawing of A in Fig. 3；
Fig. 7 is the assembling schematic diagram of idler wheel and dial in angle measurement tool embodiment 1 of the present invention；
Fig. 8 is the structural schematic diagram of pedestal in angle measurement tool embodiment 1 of the present invention；
Fig. 9 is the top view of Fig. 8；
Figure 10 is the schematic diagram of dial and alidade in angle measurement tool embodiment 1 of the present invention；
Figure 11 is sectional view along A-A in Figure 10；
Figure 12 is the structural schematic diagram of the second benchmark architecture in angle measurement tool embodiment 1 of the present invention；
Figure 13 is the top view of Figure 12；
Figure 14 is the structural schematic diagram of rotor block in angle measurement tool embodiment 1 of the present invention；
Figure 15 is the left view of Figure 14.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment 1 of angle measurement tool of the present invention, as shown in Fig. 2 to Figure 15, the angle measurement tool packet
Pedestal 1 and the graduated disk structure 5 on pedestal 1 are included, it is flat that the upper face of pedestal 1 constitutes the measurement for placing contact tube
Face, pedestal 1 are of an L-shaped structure, and the upper face of pedestal 1 includes the transverse plate part 1a that length extends in left-right direction and length before
The upper surface of longitudinal plate part 1b, transverse plate part 1a and longitudinal plate part 1b that rear direction extends are in sustained height, laterally
There is a groove 1c extended along the longitudinal direction between plate part and longitudinal plate part.Left and right is installed on the 1a of transverse plate part
Two positioning pins 2, two positioning pins 2 constitute the first benchmark knot for the first straight-tube portion location fit with contact tube
Structure, the reference line of the first benchmark architecture are the line of centres 20 of two positioning pins 2.
Graduated disk structure 5 include with angle index dial 14 and can be around the trip of the central axis rotation of dial 14
Mark, the vernier is the alidade 15 being coaxially disposed with dial 14, and the angle index line on dial 14 is arc-shaped distribution, most
Down scale is 1 °；The edge of alidade 15 is equipped with sub-multiple angle graduation mark, and the sum of minimum horn craving angle value of n of alidade 15, which is equal to, carves
The sum of n-1 minimum horn craving angle value on scale 14, alidade 15 and dial 14 form vernier angle scale.In the present embodiment, trip
Bidding quotation 15 is 30 indexing systems, i.e. the 30 of alidade lattice is equal to 29 °.Angle index on dial 14 is symmetrical about zero graduation line
It is arranged, the equal part angle index on alidade 15 is symmetrical about zero graduation line, and positive can measure reading also can be reversed survey
Amount reading.Since the zero graduation line on dial 14 is vertical with the reference line of the first benchmark architecture, no matter positive measurement or anti-
To measurement, the angle number of reading is the angle between the first, second straight-tube portion of contact tube, is converted without angle.
For 15 rolling assembling of alidade on dial 14, the downside of alidade 15 is connected with fixation by releasable connection structure
Disk 16.The center of dial 14 has the circular hole being embedded in for alidade 15, and the scale on dial 14 is along the aperture of circular hole
Distribution；The inner sidewall of circular hole is equipped with the flange to hole internal projection, and the downside of alidade 15 has a boss, offers spiral shell on boss
Pit, corresponding in fixed disk 16 to offer perforation, when assembly, alidade 15 is embedded in circular hole by the upside of dial 14, flange
Upper side and the downside block of alidade 15 cooperate, fixed disk 16 is embedded into circular hole by the downside of dial 14, flange
Block cooperates on the upside of downside and fixed disk, has a groove between fixed disk 16 and alidade 15, and flange is located at described recessed
In slot, mounting screw makes alidade 15 and fixed disk 16 link together in perforation, and perforation, threaded hole and screw constitute use
In the releasable connection structure for being connected and fixed disk and alidade.After assembly, the upper side of alidade 15 and the upper side of dial 14
Maintain an equal level, the downside of fixed disk 16 and the downside of dial 14 maintain an equal level.In order to reduce frictional resistance when alidade rotation, this
In embodiment, between alidade and dial, be equipped with ball 21 between fixed disk and dial, the lower edge of alidade and
The upper edge of fixed disk is equipped with R nest, and ball is located in R nest.
It is connected with swing rod 4 on the upside of alidade 15, is opened up on the upside of alidade 15 there are two mounting hole, the center of two mounting holes
Line crosses the center of circle of alidade 15, and the swing rod is connect by the screw being installed in mounting hole with alidade 15；Edge on swing rod 4
Its axis direction is equipped at intervals with two backing pins 3, and swing rod 4 and two backing pins 3 are constituted for the second straight-tube portion with contact tube
Second benchmark architecture of location fit, the reference line of the second benchmark architecture are the line of centres 30 of two backing pins 3, two backing pins
One in 3 is located at the center location of alidade 15, and the line of centres 30 of two backing pins 3 crosses the center of circle of alidade.Second base
Quasi- structure and 15 synchronized links of alidade, the angle that alidade 15 turns over is the angle that swing rod was put.When on alidade 15
When zero graduation line is directed toward the zero graduation line on dial 14, at this point, alidade 15 is in start position, the middle line of two backing pins 3
Line is parallel with the line of centres of two positioning pins 2.When swing rod 4 and alidade 15 rotate an angle relative to dial 14 together
Degree, has an angle at this time between the line of centres of two backing pins 3 and the line of centres of two positioning pins 2, and the zero of alidade
Graduation mark is directed toward an angle index on dial 14, which is the integer part of 15 rotational angle of alidade, then passes through
Equal part angle index on alidade 15 reads accurate angle number, the as fractional part of 15 rotational angle of alidade, integer part
In addition fractional part is the center of the rotational angle of alidade 15 and the line of centres of two backing pins 3 and two positioning pins 2
Angle degree between line.
The guiding of graduated disk structure 5 is mounted in the groove 1c of pedestal 1, the upper side and pedestal of dial 14 and alidade 15
1 upper face maintains an equal level.It is equipped in groove and is led along the longitudinal direction along what the reference line direction perpendicular to the first benchmark architecture extended
Rail, guide rail are two guide posts 13 disposed in parallel, and the rear and front end of guide post 13 is equipped with fulcrum bearing, and fulcrum bearing includes matrix 7 and pressure
Half slot is correspondingly provided on block 6, matrix 7 and briquetting 6, briquetting 6 is fixed on matrix 7 by fixed pin 60, and guide post 13 is sandwiched in
In circular groove between briquetting 6 and matrix 7.The downside of dial 14 is equipped with the two groups of idler wheels 8 in left and right, and the rolling axis of idler wheel 8 is along upper
Lower direction extends, and two groups of idler wheels 8 and two guide posts 13 correspond, and are located at the inside of two guide posts 13, the lateral surface of idler wheel 8
Equipped with annular groove 9, guide post 13 is stuck in the annular groove of corresponding side wheel.In the present embodiment, it is coated in idler wheel 8 downward on axis
The shaft 10 stretched, the top of shaft 10 have the shaft shoulder, and the top of shaft is equipped with internal thread hole, installs on dial downward on axis
The internal thread hole of the bolt stretched, bolt and shaft cooperates.Shaft lower part is equipped with external screw thread, between the shaft shoulder and idler wheel 8 of shaft 10
Equipped with ball；R nut 11 is connected with by external screw thread in shaft 10, ball 21 is equipped between R nut and idler wheel, adjusts R nut
Make idler wheel flexible rotation, and emit back tightly with back, prevents R nut from falling off.
Angle measurement tool of the present invention when in use, contact tube 12 to be detected is placed on pedestal 1, contact tube 12 is made
The first straight-tube portion and two 2 location fits of positioning pin, at this point, the line of centres 20 and the first straight sections of two positioning pins 2
The axis divided is parallel.Front and back adjusts graduated disk structure 5, makes the second straight-tube portion of contact tube and is located at 15 the center point of alidade
3 location fit of backing pin, after the position of graduated disk structure determines, rotational swing rod 4, make to deviate the backing pin 3 in 15 center of circle of alidade also with
Second straight-tube portion location fit of contact tube, at this time the second straight-tube portion of the line of centres 30 of two backing pins 3 and contact tube
Axis it is parallel, state as shown in Figure 4.When at the center of two backing pins 3, connection is parallel with the line of centres of two positioning pins 2,
Zero graduation line on alidade 15 is aligned with the zero graduation line on dial 14, and swing rod and alidade 15 are in start position,
State as shown in Figure 3；When the line of centres 30 of two backing pins 3 is parallel with the axis of the second straight-tube portion of contact tube, such as Fig. 4
Shown state, swing rod and alidade 15 are in final position, and alidade turns over an angle apart from start position, which is
For the angle between two straight-tube portions of contact tube, integer part is read according to the scale on dial, further according to alidade
On scale read fractional part, the sum of integer part and fractional part be contact tube two straight-tube portions between folder
Angle.
In other embodiments, graduated disk structure can be fixed on the base, and when measurement, be led by adjusting in left-right direction
The position of fulgurite makes the second straight-tube portion of contact tube and the backing pin location fit for being located at scale disk center.In addition, the first benchmark
Structure can also be oriented to along the longitudinal direction and be mounted on the base.First benchmark architecture can also be other structures form, such as along a left side
The vertical plate that right direction extends, the side of vertical plate and the first straight-tube portion location fit of contact tube when use.Second benchmark architecture
Two backing pins 3 can also be directly anchored on alidade, the line of centres of two backing pins always cross the center of circle.It can not on dial
Circular hole is set, column can be set at the center of dial, alidade is coaxially installed on column, on the upside of the prominent alidade of column
Face, the fixed column in the off-centered position of alidade, two columns constitute the second benchmark architecture.In other embodiments, trip
Bidding quotation can also be equal to 9 ° for 10 indexing systems, i.e. 10 lattices of alidade.It can be also not provided with alidade, vernier can be balancing point,
Balancing point and swing rod are connected, and swing rod and balancing point synchronous hunting at this time can only be according to the scale readings on dial.It can also be in scale
The fixed column in the center of disk, swing rod is rotatably installed on column, and zero graduation line is arranged on swing rod, at this point, swing rod constitutes trip
Mark.
Claims (7)
1. a kind of angle measurement tool, it is characterised in that: including the pedestal for placing contact tube, pedestal is equipped with dial knot
Structure, for the first benchmark architecture of the first straight-tube portion location fit with contact tube and for the second straight tube with contact tube
Second benchmark architecture of part location fit, graduated disk structure include with angle index dial and can be around scale disk center
The vernier of axis rotation, the center of the reference line scaleover disk of second benchmark architecture, the second benchmark architecture can be around dial
Central axis rotation and with the vernier synchronized links；Reference line and first benchmark architecture of the vernier in the second benchmark architecture
Reference line it is parallel when be located at starting point, be in the reference line of the second benchmark architecture and parallel the second straight-tube portion of contact tube
Terminal；Pedestal is equipped with the guide rail extended along the reference line direction perpendicular to the first benchmark architecture, the graduated disk structure guiding
Activity is assemblied on guide rail.
2. angle measurement tool according to claim 1, it is characterised in that: the vernier is coaxially to turn with the dial
The alidade of dynamic assembly setting, alidade are equipped with sub-multiple angle graduation mark, and the alidade and dial form vernier angle scale.
3. angle measurement tool according to claim 2, it is characterised in that: the center of dial has to be embedded in for alidade
Circular hole, the side wall of circular hole is equipped with flange, is connected with fixed disk, alidade and fixation by releasable connection structure on alidade
The groove entered for the flange is equipped between disk, the flange is located in the groove.
4. angle measurement tool according to claim 3, it is characterised in that: between fixed disk and dial and alidade
It is equipped with ball between dial, R nest is equipped on the downside of the upside of fixed disk and alidade, ball is located in R nest.
5. angle measurement tool according to claim 1, it is characterised in that: pedestal is equipped with two parallel guide posts, guide post
The guide rail is constituted, the downside of dial, which is equipped with, leads with the one-to-one two groups of idler wheels with annular groove of two guide posts, idler wheel positioned at two
The inside of column and the centerline axis parallel of rolling axis and dial, two guide posts are stuck in the annular groove of corresponding idler wheel.
6. angle measurement tool according to any one of claims 1-4, it is characterised in that: the first benchmark architecture packet
It includes between left and right every two positioning pins being installed on pedestal, the line of centres of two positioning pins is the reference line of the first benchmark architecture.
7. according to angle measurement tool described in claim 2-4 any one, it is characterised in that: the second benchmark architecture includes swing rod
And along spaced apart two backing pins in oscillating bar length direction, swing rod is fixedly arranged on the upside of alidade, one axis in two backing pins
Line is overlapped with the central axis of alidade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038272.6A CN106595438B (en) | 2016-11-23 | 2016-11-23 | A kind of angle measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038272.6A CN106595438B (en) | 2016-11-23 | 2016-11-23 | A kind of angle measurement tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106595438A CN106595438A (en) | 2017-04-26 |
| CN106595438B true CN106595438B (en) | 2019-01-22 |
Family
ID=58592835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611038272.6A Active CN106595438B (en) | 2016-11-23 | 2016-11-23 | A kind of angle measurement tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106595438B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883850B (en) * | 2017-12-15 | 2024-03-08 | 中车眉山车辆有限公司 | Device and method for detecting prefabricated opening angle formed by three connecting rod type upper locking pins of railway wagon upper acting coupler |
| DE102018202239A1 (en) * | 2018-02-14 | 2019-08-14 | Dr. Johannes Heidenhain Gmbh | Bearing angle measuring device |
| CN111735370B (en) * | 2020-07-02 | 2022-03-04 | 广东电网有限责任公司东莞供电局 | Auxiliary measuring device for elbow bend |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201805U (en) * | 1985-05-05 | 1986-08-20 | 石德胜 | Angle gage for measuring pipe |
| EP0198108A2 (en) * | 1985-04-11 | 1986-10-22 | Bao-Shen Liu | A vernier gauge |
| CN102338613A (en) * | 2011-05-20 | 2012-02-01 | 西北工业大学 | Vernier scale for measuring bending radius and bending angle of numerically-controlled bending pipe |
| CN102954748A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Detection tool for bent tube |
-
2016
- 2016-11-23 CN CN201611038272.6A patent/CN106595438B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0198108A2 (en) * | 1985-04-11 | 1986-10-22 | Bao-Shen Liu | A vernier gauge |
| CN85201805U (en) * | 1985-05-05 | 1986-08-20 | 石德胜 | Angle gage for measuring pipe |
| CN102338613A (en) * | 2011-05-20 | 2012-02-01 | 西北工业大学 | Vernier scale for measuring bending radius and bending angle of numerically-controlled bending pipe |
| CN102954748A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Detection tool for bent tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106595438A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106595438B (en) | A kind of angle measurement tool | |
| CN109186413B (en) | Sphere diameter instrument with adjustable measuring diameter and method for measuring curvature radius and deflection | |
| CN103308281B (en) | The pick-up unit of wedge-shaped lens and detection method | |
| CN103196352B (en) | Plane angle measuring instrument | |
| CN101398282B (en) | Synthesis measurement method and device for manufacturing engineering machinery hydraulic components | |
| CN105135971A (en) | Movable spherical core comprehensive error detecting device supported by double vertical columns | |
| CN105823392A (en) | Automobile auxiliary frame installation point inspection tool | |
| CN103116043A (en) | Crank and rocker combined type testing jig capable of adjusting elevation angles of antennas | |
| CN101776454B (en) | Plane verticality detection method and device by right-angle reflecting prism method | |
| CN202119407U (en) | Double-ball involute templet suitable for calibrating gear measuring center | |
| CN202064934U (en) | MWD (Measurement While Drilling) external angular difference drill protractor | |
| CN207215044U (en) | A kind of eyeglass angular instrument | |
| CN103162712A (en) | Method for treating errors of angle measurement of circular grating and compensating skew of shafting | |
| CN201191183Y (en) | Optical height measuring equipment | |
| CN207991422U (en) | A kind of motor rockshaft fastener hole Pore Diameter Detection jig | |
| CN204373533U (en) | A kind of vernier caliper surveying the core diameter of thread | |
| CN209559065U (en) | A kind of differential casing sphere center position cubing | |
| CN205279969U (en) | Deviation from cylindrical form measuring device | |
| CN208419824U (en) | A kind of adjustable spherometer of measurement diameter | |
| CN102759318B (en) | Single-leg external circular arc ruler | |
| CN214010728U (en) | Reading and writing desk lamp testing device | |
| CN102937403B (en) | Large scale thread pitch diameter comparing measuring apparatus | |
| CN204027508U (en) | Engine crankshaft key slot device for detecting symmetry degree | |
| CN204854603U (en) | Axiality inspection measuring tool | |
| CN202177350U (en) | Testing tool for measuring crankshaft pinhole axial dimensions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |