CN208805129U - Pitch diameter of thread bounce gauge - Google Patents
Pitch diameter of thread bounce gauge Download PDFInfo
- Publication number
- CN208805129U CN208805129U CN201821844859.0U CN201821844859U CN208805129U CN 208805129 U CN208805129 U CN 208805129U CN 201821844859 U CN201821844859 U CN 201821844859U CN 208805129 U CN208805129 U CN 208805129U
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- stud
- plate
- thread
- sliding block
- pitch diameter
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Abstract
The utility model discloses a kind of pitch diameter of thread bounce gauge, pedestal including being located at bottommost, the upper surface of described pedestal one end is equipped with for installing the mounting blocks for placing stud to be detected, and the screw thread of thread connection and at least part stud exposes except mounting blocks between the stud and mounting blocks；Vertical plate is fixed in the other end face of pedestal, first sliding block is perpendicularly fixed at the setting of the second sliding block, and the amesdial has the ram item being slidably connected with the second sliding block in the dovetail groove that its length direction is arranged, so that amesdial can slide into bottom end from the dovetail groove upper end and connect and be mounted on first sliding block.The utility model can more accurately detect the error of pitch diameter of external thread, manufacture, is easy to use.
Description
Technical field
The utility model belongs to the tolerance detection technique field of screw thread, more particularly to a kind of for detecting pitch diameter of thread bounce
Detecting tool.
Background technique
Screw thread is a kind of connection structure form common in machinery, common are the forms such as stud, bolt, screw rod, at present
Mostly use ring gauge etc. that can detect with the standard tool being threadedly engaged greatly the detection of screw thread, this detection mode is more extensive,
Can qualified or not be primarily to see be detected screw, and size this kind of for central diameter is generally difficult to detect, and for central diameter can be detected
Some equipment be some general high-tech precision inspection instruments mostly, it is complicated for operation, it is less economical.
Utility model content
Utility model aims to solve above-mentioned technical problems, provide a kind of pitch diameter of thread bounce gauge, the screw thread
Error is larger when central diameter bounce gauge efficiently solves dependence ring gauge detection external screw thread at present, and central diameter is difficult to detect and operate numerous
Trivial less economical technical problem.
The technical solution of the utility model is as follows:
A kind of pitch diameter of thread bounce gauge, the pedestal including being located at bottommost, the upper surface of described pedestal one end, which is equipped with, to be used
The mounting blocks of stud to be detected, the spiral shell of thread connection and at least part stud between the stud and mounting blocks are placed in installation
Line exposes except mounting blocks；Vertical plate, the fixed company in the vertical plate lower part and pedestal end face are fixed in the other end face of pedestal
It connects, top stretches out base upper surface and is equipped with the tapped through hole perpendicular to vertical plate in the part for stretching out upper surface；In the installation
Base upper surface between block and vertical plate is equipped with the second sliding block that can be slided in base upper surface towards mounting blocks, and described second is sliding
Amesdial is laid on block, the probe of the amesdial is arranged towards the stud and slides the central diameter holding of Shi Keyu stud in place
It is steadily contacted；Adjusting screw rod is connected after being screwed into the tapped through hole with the first sliding block, and the first sliding block is perpendicularly fixed at the second sliding block
Setting, and the amesdial has the ram item being slidably connected with the second sliding block in the dovetail groove that its length direction is arranged, so that
Bottom end can be slid into from the dovetail groove upper end and connect and be mounted on first sliding block by obtaining amesdial.
Further, one end that the adjusting screw rod passes through tapped through hole is coaxially equipped with tapped blind hole, and the screw thread is blind
It is sliding that the T-type sliding slot that T-bolt, the nut of the T-bolt and first sliding block are opened up away from dovetail groove side is screwed in hole
Dynamic connection, and in adjusting screw rod rotation and covering nut when on the screw thread of T-bolt can not freely turn in T-type sliding slot
It is dynamic.
Further, the amesdial includes the mounting jaw of a pair of of relative spacing arrangement, is installed between the mounting jaw
There is fixed mandrel, is each provided with the ear block for protruding from mounting jaw, two ear blocks point column in the opposite side of two mounting jaws
The two sides of the mandrel, torsion spring set is on mandrel and its both ends is respectively fixedly connected on ear block, and torsional spring is embedded in sleeve, set
Cylinder is external to be equipped with the probe being arranged towards stud along its tangential direction, and the torsion direction of the torsional spring should make probe ride over
There is certain pressure to stud when in stud at path position.
Further, the amesdial includes the mounting jaw of a pair of of relative spacing arrangement, is installed between the mounting jaw
Have fixed mandrel, be respectively fixedly connected with an auricle at the both ends in the mandrel, two auricles along mandrel radially towards
Outer fixed and arranged, torsion spring set is on mandrel and its both ends is respectively fixedly connected on auricle, and torsional spring is embedded in sleeve, outside sleeve
Portion is equipped with the probe being arranged towards stud along its tangential direction, and the torsion direction of the torsional spring should make probe ride over stud
There is certain pressure to stud when at middle path position；Wherein the outside of the mounting jaw of side is equipped with thread bush, the spiral shell
The threaded hole and mandrel of line set are coaxial in the mounting hole of mounting jaw, and mandrel passes through mounting hole and stretches in the thread bush
Part is the bolt arrangement cooperated with threaded hole.
Further, the mounting blocks upper surface is equipped with the support plate of a pair of of relative spacing arrangement, and two support plates are equipped with
The helicitic texture that can be screwed with stud of one of arc-shaped.
Further, a same pressing plate with circular thread structure is also respectively articulated in the support plate, it is described
Pressing plate has a connecting plate away from the side of its hinged end, has a company away from the side of its hinged end in the support plate
It is consecutive, pressing plate rotate to be detachably connected with connected unit described when support plate split and connecting plate and on pressing plate and support plate two
A thread binding pieces together the thread pore structure that can completely cooperate with stud.
Further, the pressing plate is each provided with a magnetite and two magnetite magnetic pole phases with what support plate was bonded to each other on one side
Instead.
It further, further include being mounted on the vertical plate away from the fixation bracket of a side surface of the first sliding block, it is described solid
Fixed rack includes the first plate perpendicular to vertical plate fixed setting, the second hinged plate, the hinged third with the second plate with the first plate
Plate, the third plate be of an L-shaped structure and wherein one section with parallel and another section of the first plate be removably secured be close to vertical plate surface
When, second plate is parallel to vertical plate, and clamping screw is screwed into the second plate and by the institute between the first plate and third plate wherein one section
State the nut end face dieback of adjusting screw rod.
Further, another section of the third plate is fixed on vertical plate between vertical plate by the screw rod with hanging ring.
Further, the contact point between the probe and stud to be measured is located at the top of the pitch diameter of thread.
Further, the rotating device for further including clamping stud end and stud being driven to rotate on the supporting plate, the rotation
Rotary device includes handwheel, has a cylinder table on the end face of handwheel, and cylinder table has a countersunk head blind hole towards the end face of stud,
The magnet of stud can be attracted embedded with one in the bottom end of countersunk head blind hole, the countersunk head blind hole can just be held by the hole being open
Receive the end of stud.
The utility model has the beneficial effects that the utility model detects the pitch diameter of thread using amesdial, by stud etc
External screw thread is placed on mounting blocks, and being threadedly engaged with mounting blocks in non-close, when rotating stud with mounting blocks threaded engagements
While, pitch diameter of thread position can successively with the probe contacts of amesdial, to detect the jitter values (i.e. error) of central diameter.Together
When, manufacture, installation, the use that the utility model alsos for convenient for tooling slide amesdial by dovetail groove cooperation from top to bottom
In dynamic installation to the second sliding block, installation is convenient and position is accurate, pushes the first sliding block using adjusting screw rod then to drive the
Two sliding blocks slide on pedestal towards mounting blocks, to realize contact of the amesdial probe with central diameter.It can be seen that the utility model can
More accurately detect the error of pitch diameter of external thread, either manufacture, install still operate with for it is all relatively simple, it is economical
It is at low cost, it is practical.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model main view.
Fig. 3 is the utility model top view.
Fig. 4 is the connection schematic diagram of adjusting screw rod and the first sliding block.
Fig. 5 is a kind of mounting structure schematic diagram of probe.
Fig. 6 is the similar alternative arrangements schematic diagram of probe.
Fig. 7 is the schematic diagram of the support plate equipped with pressing plate.
Fig. 8 is the mounting structure schematic diagram of clamping screw.
The fixed schematic diagram of clamping of the Fig. 9 between stud and handwheel.
Component label instructions: pedestal 1, magnetite 2, vertical plate 3, adjusting screw rod 4, the first sliding block 5, the second sliding block 6, amesdial 7,
Stud 8, mounting blocks 9, T-bolt 10, mounting jaw 11, ear block 12, torsional spring 13, sleeve 14, probe the 15, first plate 16, the second plate
17, clamping screw 18, third plate 19, support plate 20, pressing plate 21, connecting plate 22, connected unit 23, cylinder table 24, handwheel 25, magnet
26, auricle 27, magnet 28.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
The utility model is described in further detail with reference to the accompanying drawings and examples:
As shown in Fig. 1-3, a kind of pitch diameter of thread bounce gauge, the pedestal 1 including being located at bottommost, described 1 one end of pedestal
Upper surface be equipped with for installing the mounting blocks 9 for placing stud 8 to be detected, between the stud 8 and mounting blocks 9 thread connection and
The screw thread of at least part stud 8 exposes except mounting blocks 9；Vertical plate 3 is fixed in the other end face of pedestal 1, it is described vertical
3 lower part of plate is fixedly connected with 1 end face of pedestal, top stretch out 1 upper surface of pedestal and stretch out upper surface part be equipped with perpendicular to
The tapped through hole of vertical plate 3；1 upper surface of pedestal between the mounting blocks 9 and vertical plate 3 is equipped with can be in 1 upper surface court of pedestal
The second sliding block 6 that mounting blocks 9 slide, lays amesdial 7 on second sliding block 6, and the probe 15 of the amesdial 7 is towards described
The setting of stud 8 and the central diameter for sliding Shi Keyu stud 8 in place keep being steadily contacted；After adjusting screw rod 4 is screwed into the tapped through hole
It is connected with the first sliding block 5, the first sliding block 5 is perpendicularly fixed at the setting of the second sliding block 6, and the amesdial 7 has and the second sliding block 6
In the ram item that the dovetail groove of its length direction setting is slidably connected, so that amesdial 7 can be sliding from the dovetail groove upper end
Enter bottom end and connects and be mounted on first sliding block 5.
The utility model detects the pitch diameter of thread using amesdial 7, and the external screw thread of stud 8 etc is placed on mounting blocks 9
On, and being threadedly engaged in non-close with mounting blocks 9, while when rotating stud 8 with 9 threaded engagement of mounting blocks, the pitch diameter of thread
Position can successively be contacted with the probe 15 of amesdial 7, to detect the jitter values (i.e. error) of central diameter.Meanwhile this is practical new
Type alsos for manufacture, installation, use convenient for tooling, and amesdial 7 is cooperated by dovetail groove and is slidably installed from top to bottom to the
On two sliding blocks 6, installation is convenient and position is accurate, pushes the first sliding block 5 using adjusting screw rod 4 then to drive the second sliding block 6
It is slided on pedestal 1 towards mounting blocks 9, to realize contact of the probe 15 of amesdial 7 with central diameter.It can be seen that the utility model can
More accurately detect the error of pitch diameter of external thread, either manufacture, install still operate with for it is all relatively simple, it is economical
It is at low cost, it is practical.
Further, one end that the adjusting screw rod 4 passes through tapped through hole is coaxially equipped with tapped blind hole, and the screw thread is blind
TT type bolt 10 is screwed in hole, the nut and first sliding block 5 of the TT type bolt 10 deviate from the T that dovetail groove side opens up
Type sliding slot is slidably connected, and rotates in adjusting screw rod 4 and cover when on the screw thread of TT type bolt 10 that the nut can not be in T-type
It is freely rotated in sliding slot.TT type bolt 10 can drive the first sliding block 5 preferably to move when to rotate adjusting screw rod 4, and TT
Type bolt 10, which is easily facilitated, to be connect between amesdial 7 by the first sliding block 5, simple and ingenious structure.
Further, the amesdial 7 includes the mounting jaw 11 of a pair of of relative spacing arrangement, between the mounting jaw 11
Fixed mandrel is installed, is each provided with the ear block 12 for protruding from mounting jaw 11 in the opposite side of two mounting jaws 11,
Two ear blocks 12 divide the two sides for arranging the mandrel, and 13 sets of torsional spring on mandrel and its both ends is respectively fixedly connected on ear block 12, turn round
Spring 13 is embedded in sleeve 14, is equipped with the probe 15 being arranged towards stud 8, the torsional spring outside sleeve 14 along its tangential direction
There is certain pressure, this structure to stud 8 when 13 torsion direction should make probe 15 in riding over stud 8 at path position
Allow probe 15 to keep having stable contact squeeze power with stud 8, allows stud 8 when rotating preferably by central diameter
Dimension information 15 be transferred on the instruction disk of amesdial 7 by probe, detection accuracy is higher.
Further, the amesdial 7 includes the mounting jaw 11 of a pair of of relative spacing arrangement, between the mounting jaw 11
Fixed mandrel is installed, is respectively fixedly connected with an auricle 27 at both ends in the mandrel, two auricles 27 are along core
Axis radially fixed and arranged, 13 sets of torsional spring on mandrel and its both ends is respectively fixedly connected on auricle 27, and torsional spring 13 is embedded
In in sleeve 14, the probe 15 being arranged towards stud 8, the torsion of the torsional spring 13 are equipped with outside sleeve 14 along its tangential direction
There is certain pressure to stud 8 when power direction should make probe 15 in riding over stud 8 at path position；Wherein side is described
The outside of mounting jaw 11 is equipped with thread bush, and the threaded hole and mandrel of the thread bush are coaxial in the mounting hole of mounting jaw 11, and core
The part that axis passes through mounting hole and stretches in the thread bush is the bolt arrangement cooperated with threaded hole.The structure not only can be with
Realize that probe 15 keeps having stable contact squeeze power with stud 8, it is also possible that adjustment probe 15 connects when adjusting mandrel
Position is touched, accuracy detection is higher.
Further, 9 upper surface of mounting blocks is equipped with the support plate 20 of a pair of of relative spacing arrangement, in two support plates 20
The helicitic texture that can be screwed with stud 8 equipped with one of arc-shaped picks and places stud 8 to install.
Further, a same pressing plate 21 with circular thread structure is also respectively articulated in the support plate 20,
The pressing plate 21 has a connecting plate 22 away from the side of its hinged end, deviates from the side of its hinged end in the support plate 20
With a connected unit 23, the connected unit 23 and connecting plate 22 are detachably connected when the rotation of pressing plate 21 is to 20 split of support plate
And two on pressing plate 21 and support plate 20 are screwed and piece together the thread pore structure that can completely cooperate with stud 8.
The structure is convenient for stud 8 to be fixedly mounted in support plate 20, and fixation is convenient, is particularly suitable for biggish stud 8.
Further, the pressing plate 21 is each provided with a magnetite 2 and two magnetites 2 with what support plate 20 was bonded to each other on one side
Magnetic pole on the contrary, to realize that Fast Installation is fixed.
It further, further include being mounted on the vertical plate 3 away from the fixation bracket of a side surface of the first sliding block 5, it is described
Fixed bracket includes the first plate 16 being fixedly installed perpendicular to vertical plate 3, and the second hinged plate 17 of the first plate 16, with the second plate
17 hinged third plates 19, the third plate 19 be of an L-shaped structure and wherein one section it is detachable with 16 parallel and another sections of the first plate
Ground is fixed when being close to 3 surface of vertical plate, and second plate 17 is parallel to vertical plate 3, clamping screw 18 be screwed into the second plate 17 and by first
The nut end face dieback of plate 16 and third the plate 19 wherein adjusting screw rod 4 between one section, so that adjusting amesdial 7 in place
Position can firmly be fixed, prevent it from shaking in the axial direction for adjusting bolt because of silk diastema, avoid influencing spy
First 15 with central diameter contact stabilization.
Further, another section of the third plate 19 is fixed on vertical plate 3 by the screw rod with hanging ring between vertical plate 3
On, to assemble and disassemble, to manufacture.
Further, the contact point between the probe and stud to be measured is located at the top of the pitch diameter of thread, i.e., in screw thread
The point of four intercardinal topmosts on diameter circumference, so that pitch diameter of thread measurement accuracy highest.
Further, the rotating device for further including 8 end of clamping stud and stud 8 being driven to rotate in support plate 20, institute
Stating rotating device includes handwheel 25, has a cylinder table 24 on the end face of handwheel 25, the end face of cylinder table 24 towards stud 8 has
One countersunk head blind hole can attract the magnet 26 of stud 8 in the bottom end of countersunk head blind hole embedded with one, and the countersunk head blind hole is by opening
A hole can just accommodate the end of stud 8, allow stud 8 to be quickly mounted fixation, spiral shell rotated by handwheel 25
Column 8 rotates, and realizes the movement of threading action pair.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (10)
1. a kind of pitch diameter of thread bounce gauge, it is characterised in that: the pedestal including being located at bottommost, the upper table of described pedestal one end
Face is equipped with for installing the mounting blocks for placing stud to be detected, thread connection and at least part between the stud and mounting blocks
The screw thread of stud exposes except mounting blocks；Vertical plate, the vertical plate lower part and base end are fixed in the other end face of pedestal
Face is fixedly connected, and top stretches out base upper surface and is equipped with the tapped through hole perpendicular to vertical plate in the part for stretching out upper surface；?
Base upper surface between the mounting blocks and vertical plate is equipped with the second sliding block that can be slided in base upper surface towards mounting blocks, institute
It states and lays amesdial on the second sliding block, the probe of the amesdial is arranged towards the stud and slides Shi Keyu stud in place
Central diameter keeps being steadily contacted；Adjusting screw rod is connected after being screwed into the tapped through hole with the first sliding block, and the first sliding block is perpendicularly fixed at
The setting of second sliding block, and the amesdial has the ram being slidably connected with the second sliding block in the dovetail groove that its length direction is arranged
Item, so that amesdial can slide into bottom end from the dovetail groove upper end and connect and be mounted on first sliding block.
2. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: the adjusting screw rod passes through tapped through hole
One end is coaxially equipped with tapped blind hole, and T-bolt, the nut of the T-bolt and described first are screwed in the tapped blind hole
Sliding block is slidably connected away from the T-type sliding slot that dovetail groove side opens up, and rotates and covered on the screw thread of T-bolt in adjusting screw rod
Shi Suoshu nut can not be freely rotated in T-type sliding slot.
3. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: the amesdial includes between a pair is opposite
Fixed mandrel is installed between the mounting jaw of arrangement, the mounting jaw, is each provided in the opposite side of two mounting jaws
One protrudes from the ear block of mounting jaw, and the two sides of the two ear blocks point column mandrel, torsion spring set is on mandrel and its both ends is solid respectively
Surely it being connected on ear block, torsional spring is embedded in sleeve, and cartridge exterior is equipped with the probe being arranged towards stud along its tangential direction,
There is certain pressure to stud when the torsion direction of the torsional spring should to pop one's head in riding over stud at path position.
4. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: the amesdial includes between a pair is opposite
Fixed mandrel is installed between the mounting jaw of arrangement, the mounting jaw, in the mandrel by each self-retaining at both ends
It is connected with an auricle, two auricles are along mandrel radially fixed and arranged, and torsion spring set is on mandrel and its both ends is fixed respectively connects
It connects on auricle, torsional spring is embedded in sleeve, and cartridge exterior is equipped with the probe being arranged towards stud along its tangential direction, described
There is certain pressure to stud when the torsion direction of torsional spring should to pop one's head in riding over stud at path position；Wherein side
The outside of the mounting jaw is equipped with thread bush, and the threaded hole and mandrel of the thread bush are coaxial in the mounting hole of mounting jaw, and core
The part that axis passes through mounting hole and stretches in the thread bush is the bolt arrangement cooperated with threaded hole.
5. any one pitch diameter of thread bounce gauge according to claim 1-4, it is characterised in that: the mounting blocks upper surface
Support plate equipped with a pair of of relative spacing arrangement, two support plates are equipped with the screw thread knot that can be screwed with stud of one of arc-shaped
Structure.
6. pitch diameter of thread bounce gauge according to claim 5, it is characterised in that: be also respectively articulated with one in the support plate
A same pressing plate with circular thread structure, the pressing plate has a connecting plate away from the side of its hinged end, described
Support plate has a connected unit, the pressing plate connected unit and company when rotating to support plate split away from the side of its hinged end
Fishplate bar is detachably connected and two thread bindings on pressing plate and support plate piece together the spiral shell that can completely cooperate with stud
Pit structure.
7. pitch diameter of thread bounce gauge according to claim 6, it is characterised in that: what the pressing plate was bonded to each other with support plate
It is each provided with a magnetite on one side and two magnetite magnetic poles are opposite.
8. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: further include being mounted on the vertical plate away from the
The fixation bracket of one side surface of one sliding block, the fixed bracket includes the first plate perpendicular to vertical plate fixed setting, with first
The second hinged plate of plate, the third plate hinged with the second plate, the third plate be of an L-shaped structure and wherein one section it is parallel with the first plate
And another section is removably secured when being close to vertical plate surface, second plate is parallel to vertical plate, clamping screw be screwed into the second plate and
By the nut end face dieback of the adjusting screw rod between the first plate and third plate wherein one section；Another section of the third plate with
It is fixed on vertical plate between vertical plate by the screw rod with hanging ring.
9. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: connecing between the probe and stud to be measured
Contact is located at the top of the pitch diameter of thread.
10. pitch diameter of thread bounce gauge according to claim 1, it is characterised in that: further include clamping stud end and drive
The rotating device that stud rotates on the supporting plate, the rotating device include handwheel, have a cylinder table on the end face of handwheel,
Cylinder table has a countersunk head blind hole towards the end face of stud, can attract the magnetic of stud embedded with one in the bottom end of countersunk head blind hole
Iron, the countersunk head blind hole can just accommodate the end of stud by a hole of opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844859.0U CN208805129U (en) | 2018-11-09 | 2018-11-09 | Pitch diameter of thread bounce gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844859.0U CN208805129U (en) | 2018-11-09 | 2018-11-09 | Pitch diameter of thread bounce gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805129U true CN208805129U (en) | 2019-04-30 |
Family
ID=66239594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821844859.0U Active CN208805129U (en) | 2018-11-09 | 2018-11-09 | Pitch diameter of thread bounce gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208805129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141169A (en) * | 2018-11-09 | 2019-01-04 | 荆州市锦钿航空配件股份有限公司 | A kind of pitch diameter of thread bounce gauge |
| CN110579148A (en) * | 2019-09-12 | 2019-12-17 | 河南航天精工制造有限公司 | External thread pitch diameter runout measuring joint and measuring device |
| TWI719821B (en) * | 2020-02-03 | 2021-02-21 | 國立中山大學 | Automatic nut internal thread quality tester |
-
2018
- 2018-11-09 CN CN201821844859.0U patent/CN208805129U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141169A (en) * | 2018-11-09 | 2019-01-04 | 荆州市锦钿航空配件股份有限公司 | A kind of pitch diameter of thread bounce gauge |
| CN110579148A (en) * | 2019-09-12 | 2019-12-17 | 河南航天精工制造有限公司 | External thread pitch diameter runout measuring joint and measuring device |
| CN110579148B (en) * | 2019-09-12 | 2021-08-06 | 河南航天精工制造有限公司 | External thread pitch diameter runout measuring joint and measuring device |
| TWI719821B (en) * | 2020-02-03 | 2021-02-21 | 國立中山大學 | Automatic nut internal thread quality tester |
| US11175122B2 (en) | 2020-02-03 | 2021-11-16 | National Sun Yat-Sen University | Automatic nut internal thread quality tester |
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