CN207351374U - A kind of device for being used to detect big end screw thread hole verticality - Google Patents
A kind of device for being used to detect big end screw thread hole verticality Download PDFInfo
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- CN207351374U CN207351374U CN201721334054.7U CN201721334054U CN207351374U CN 207351374 U CN207351374 U CN 207351374U CN 201721334054 U CN201721334054 U CN 201721334054U CN 207351374 U CN207351374 U CN 207351374U
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Abstract
The utility model discloses a kind of device for detecting screw thread hole verticality, particularly a kind of device for being used to detect big end screw thread hole verticality, belongs to measuring device technical field.A kind of device for being used to detect big end screw thread hole verticality of the utility model, including measurer main body and the positioning datum block for being arranged at measurer body top, the measurer body side is equipped with the jacking mechanism for holding out against big end, the top surface of the positioning datum block is parallel with bottom surface, and the datum hole through positioning datum block top surface and bottom surface is offered on positioning datum block.The utility model is easy to operate, high certainty of measurement, and detection efficiency is high, and cost is low, can realize the quick-clamping of big end, the detection operation especially suitable for big end screw thread hole verticality in batch；With reference to mounting groove design when, can particularly be suitable for screw thread hole verticality when big end end face have a boss and measure operation.
Description
Technical field
A kind of device for detecting screw thread hole verticality is the utility model is related to, it is particularly a kind of to be used to detect big end spiral shell
The device of pit verticality, belongs to measuring device technical field.
Background technology
In machinery manufacturing technology field, after workpiece is formed threaded hole by machining operation, when needing to ensure workpiece
Assembly precision when, usually the verticality of the threaded hole after processing is detected.Such as connecting piston and bent axle
The faying face of connecting rod, traditional big end and connecting rod cap is the end face of plane, and the end face of big end is threaded
Hole, the end face of connecting rod cap is machined with the smooth circular hole for penetrating bolt, in order to ensure big end and connecting rod cap
Between assembly precision, therefore the threaded hole of big end needs to detect verticality, and generally use taper thread mandrel is detected,
Detection method comprises the following steps.
Step 1：Manufacture processing taper thread mandrel（Epimere is the bar portion section of polished rod, and hypomere is taper thread section）, taper
Threaded mandrel needs to meet following technical requirements：A) taper thread section is 1：300 taper thread, and need according to tested screw thread
The actual tolerance manufacturing in hole is multiple；b）Bar portion section will not only ensure high form tolerance as detection benchmark（Cylindricity and straight line
Degree）, also to ensure the position of related features of taper thread section and bar portion section（Concentricity）.
Step 2：Taper thread mandrel is screwed into tested threaded hole, when the useful thread for being threaded to be measured threaded hole
During more than 1/3, if being now in gapless state, next step can be performed；Needed more if it cannot reach above-mentioned requirements
Taper thread mandrel is changed, until meeting above-mentioned requirements.
Step 3：End face big end is bonded using one right-angle side of block square, another right-angle side is bonded bar portion section, observation
Its printing opacity situation, with light-transmitting gap size test and appraisal measured workpiece verticality.
Above-mentioned measuring method is suitable for small lot, big end end face and connecting rod axis perpendicular, big end end face is
The squareness measurement demand of the threaded hole of plane, and detection efficiency is low.With the lifting of requirement, in order to improve connecting rod
Service life, particularly improves the ability that connecting rod bears shearing force, the end face of big end and connecting rod cap is additionally provided with phase
Mutual matched groove and boss, and since the space of faying face is limited, threaded hole is opened at the groove and boss of big end.
Above-mentioned measuring method is no longer applicable at this time（Main cause is to be not easy to operate, and measurement error is big）.
Above-mentioned measuring method is disadvantageous in that：1）Do not applied to when big end end face has boss（Such as Fig. 7 and Fig. 8
It is shown）；2）Batch production testing requirements are unsatisfactory for, detection efficiency is low；3）Testing cost is higher, is mainly taper thread mandrel
It is high to make required precision, manufacture is of high cost；4）It only have detected the screw thread verticality of tested threaded hole effective 1/3.
The content of the invention
The goal of the invention of the utility model is：For above-mentioned problem, there is provided one kind is used to detect big end
The device of screw thread hole verticality, the utility model is easy to operate, high certainty of measurement, and detection efficiency is high, and cost is low, being capable of the company of realization
The quick-clamping of bar major part, can detect the verticality of whole threaded hole, hang down especially suitable for big end threaded hole in batch
The detection operation directly spent；The screw thread hole verticality measurement operation that big end end face can be particularly suitable for when there is boss.
The technical solution adopted in the utility model is as follows：
It is a kind of to be used to detecting the device of big end screw thread hole verticality, including measurer main body and it is arranged at measurer main body top
The positioning datum block in portion, the measurer body side are equipped with the jacking mechanism for holding out against big end, the positioning datum
The top surface of block is parallel with bottom surface, and the datum hole through positioning datum block top surface and bottom surface is offered on positioning datum block.
During using the utility model clamping big end, jacking mechanism is located at below positioning datum block, positioning datum block with
Gap between jacking mechanism is used for clamping big end, and positioning base is close in the end face that big end is had threaded hole first
Big end, is then clamped between reference block and jacking mechanism, datum hole is located at this time by quasi- block bottom surface by jacking mechanism
Above the threaded hole of big end end face, big end end face and positioning datum block bottom surface are coplanar, due to positioning datum block bottom surface
It is parallel with positioning datum block top surface, then big end end face is parallel with positioning datum block top surface.Detect big end
Screw thread hole verticality is exactly the verticality for detecting threaded hole and big end end face, due to big end end face and positioning datum
Block top surface is parallel, then detects the verticality of threaded hole and positioning datum block top surface.
A kind of device for being used to detect big end screw thread hole verticality of the utility model, further includes pluggable benchmark
It is used for the feeler gauge for detecting screw thread hole verticality in hole；The feeler gauge includes tablet, and planar bottom surface is provided with screw rod, and tablet top surface is set
The handle for rotary screw is equipped with, the bottom surface of the tablet is planar structure, and the bottom surface of screw rod and tablet is perpendicular.Using
During the utility model detection detection big end screw thread hole verticality, big end be clamped in positioning datum block and jacking mechanism it
Between, datum hole is located above threaded hole at this time, and the screw rod of feeler gauge is inserted into datum hole, rotates the handle of feeler gauge so that screw rod screws
In in threaded hole, untill planar bottom surface and positioning datum block top surface fit.When threaded hole and big end end face are endless
When complete vertical, the side of planar bottom surface will be in big end end contact, opposite side and the big end end of planar bottom surface at this time
Face at this time, can be filled in the gap there are certain gap using clearance gauge, and it is big with connecting rod just can correctly to measure threaded hole
Whether the verticality of end surface reaches design requirement.The length of screw rod and the depth of threaded hole is matched, can detect whole
The verticality of threaded hole.
A kind of device for being used to detect big end screw thread hole verticality of the utility model, the datum hole is oval
Hole.Datum hole is slotted hole（It is waist-shaped hole in other words）So that the utility model is separately plus flexible, and practicality is stronger.
A kind of device for being used to detect big end screw thread hole verticality of the utility model, the datum hole and positioning base
The top surface of quasi- block and bottom surface are perpendicular.Certainly, datum hole can also be with the incomplete phase of the top surface of positioning datum block and bottom surface
Vertically, certain deviation is also allowed, because passage of the datum hole as feeler gauge, does not directly affect screw thread hole verticality
Measurement accuracy.
The a kind of of the utility model is used to detecting the device of big end screw thread hole verticality, and the datum hole has 2, and
At least one datum hole bottom has mounting groove.The purpose of design of mounting groove is have at the big end threaded hole of detection
When having boss, boss can be inlaid into mounting groove so that big end end face can fit with positioning datum block bottom surface.
A kind of device for being used to detect big end screw thread hole verticality of the utility model, the measurer bottom part body
It is additionally provided with bottom plate.The design of bottom plate is easy to the utility model clamping on the table.
Further, the bottom surface of the bottom plate is parallel with the top surface of positioning datum block and bottom surface.In order to ensure screw thread
The measurement accuracy of hole perpendicularity, then the accuracy of manufacture of the utility model itself is particularly important, fixed in particular for ensuring
Position reference block top surface is parallel with bottom surface.So just need first to examine the depth of parallelism of positioning datum block top surface and bottom surface
Test, the bottom surface of bottom plate is as datum level, when the top surface and bottom surface for ensuring positioning datum block are mutually flat with the bottom surface of bottom plate respectively
During row, then positioning datum block top surface is parallel with bottom surface.
A kind of device for being used to detect big end screw thread hole verticality of the utility model, the jacking mechanism include setting
It is placed in the pedestal of measurer body side and is assemblied in measurer body side and rotatable eccentric wheel, and the eccentric wheel is located at base
Seat lower section, the pedestal penetrates the T-shaped that can be moved up and down and holds out against head from bottom to top, and the T-shaped holds out against head and is placed in bias
On wheel, the T-shaped, which holds out against suit on head, to have elastic component, and the flexible member is located at T-shaped and holds out against between head and base bottom surface, institute
State the handle being provided with eccentric wheel for rotation eccentric wheel.During holding out against big end, by handle rotation eccentric wheel,
T-shaped is held out against head and pushed up by eccentric wheel so that big end is clamped in positioning datum block and T-shaped is held out against between head.Connecting rod is big
After head thread hole perpendicularity measures, during big end is removed；By handle rotation eccentric wheel, in flexible member
Under effect, T-shaped holds out against head and moves down, you can removes big end.Being capable of conveniently clamping big end.
Further, the measurer body side is installed with axostylus axostyle, and the eccentric wheel is rotatably set on axostylus axostyle, with
Eccentric wheel is rotatably assemblied in measurer body side by realization.
Further, described axostylus axostyle one end is fixedly arranged on measurer body side, and the axostylus axostyle other end is equipped with end cap, the axostylus axostyle
Circumferencial direction on be additionally provided with flange, the eccentric wheel is between flange and end cap.Eccentric wheel is reliably covered
Loaded on axostylus axostyle.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
A kind of device for being used to detect big end screw thread hole verticality of the utility model, easy to operate, measurement accuracy
Height, detection efficiency is high, and cost is low, can realize the quick-clamping of big end, can detect the verticality of whole threaded hole, special
Not Shi Yongyu big end screw thread hole verticality in batch detection operation；With reference to mounting groove design when, can particularly fit
There is screw thread hole verticality measurement operation during boss for big end end face；Certain the utility model is also applied for other classes
Like the detection operation of the workpiece screw thread hole verticality of big end.
Brief description of the drawings
Fig. 1 is the front view of the utility model;
Fig. 2 is the left view of the utility model;
Fig. 3 is the top view of positioning datum block;
Fig. 4 is the front view of positioning datum block;
Fig. 5 is the structure diagram of axostylus axostyle and end cap;
Fig. 6 is the structure diagram of feeler gauge；
Fig. 7 is the structure diagram of big end；
Fig. 8 is the top view of big end end face.
Marked in figure：1- big ends, 11- grooves, the first threaded holes of 111-, 12- boss, the second threaded holes of 121-, 2-
Positioning datum block, 21- datum holes, 22- mounting grooves, 3- measurers main body, 4- bottom plates, 51-T shapes hold out against head, 52- pedestals, 53- elasticity
Element, 54- eccentric wheels, 55- axostylus axostyles, 551- flanges, 56- end caps, 57- handles, 6- feeler gauges, 61- handles, 62- tablets, 63- spiral shells
Bar.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
As shown in Figures 1 to 8, a kind of device for being used to detect big end screw thread hole verticality of the present embodiment, including
Measurer main body 3 and the positioning datum block 2 for being arranged at the top of measurer main body 3,3 sidepiece of measurer main body, which is equipped with, is used for the company of holding out against
The jacking mechanism of bar major part, the top surface of the positioning datum block 2 is parallel with bottom surface, and offers and run through on positioning datum block 2
2 top surface of positioning datum block and the datum hole 21 of bottom surface.
During using the utility model clamping big end 1,1 end face of big end has necessarily with connecting rod axis perpendicular
Angle, such as angle are 45 °, as shown in figure 8, angle can also be other angles according to the actual requirements certainly.Jacking mechanism position
In the lower section of positioning datum block 2, the gap between positioning datum block 2 and jacking mechanism is used for clamping big end 1, first by connecting rod
2 bottom surface of positioning datum block is close in the end face that major part 1 has threaded hole, and big end then is clamped in base by jacking mechanism
Between quasi- block 2 and jacking mechanism, datum hole 21 is located above threaded hole at this time, 1 end face of big end and 2 bottom surface of positioning datum block
It is coplanar, since 2 bottom surface of positioning datum block is parallel, then big end end face and positioning datum with 2 top surface of positioning datum block
2 top surface of block is parallel.Detect big end screw thread hole verticality is exactly the verticality for detecting threaded hole and big end end face,
Since big end end face is parallel with 2 top surface of positioning datum block, then threaded hole and 2 top surface of positioning datum block are detected by measurer
Verticality.In a wherein embodiment, positioning datum block 2 is structure as a whole with measurer main body 3, positioned at measurer main body 3
Top.In another embodiment, positioning datum block 2 and measurer main body 3 are Split type structure, and positioning datum block 2 is bolted
Mode is assemblied in 3 top of tool main body.
Further optimization based on the present embodiment, in another embodiment, as indicated with 6, further includes pluggable datum hole
It is used for the feeler gauge 6 for detecting screw thread hole verticality in 21；The feeler gauge 6 includes tablet 62, and 62 bottom surface of tablet is provided with screw rod 63, puts down
62 top surface of plate is provided with the handle 61 for rotary screw, and the bottom surface of the tablet 62 is planar structure, and screw rod 63 and tablet
62 bottom surface is perpendicular.When detecting detection big end screw thread hole verticality using the utility model, big end is clamped in fixed
Between position reference block 2 and jacking mechanism, datum hole 21 is located above threaded hole at this time, and the screw rod 63 of feeler gauge 6 is inserted into datum hole
21, the handle 61 of rotation feeler gauge 6 is so that screw rod 63 is combined in threaded hole, until 62 bottom surface of tablet and 2 top surface of positioning datum block
Untill fitting.When threaded hole and not exclusively vertical big end end face, the side of 62 bottom surface of tablet will be big in connecting rod at this time
End surface contacts, and opposite side and 1 end face of big end of 62 bottom surface of tablet can be there are certain gaps, at this time, using clearance gauge plug
Enter in the gap, just can correctly measure threaded hole and whether the verticality of big end end face reaches design requirement.Make
The length of screw rod 63 and the depth of threaded hole match, and can detect the verticality of whole threaded hole, you can with according to threaded hole
Depth design matching feeler gauge 6.
Further optimization based on the present embodiment, in another embodiment, as shown in figure 3, the datum hole 21 is length
Circular hole.Datum hole 21 is slotted hole（It is waist-shaped hole in other words）So that the utility model is separately plus flexible, and practicality is stronger.
Further optimization based on the present embodiment, in another embodiment, the datum hole 21 and positioning datum block 2
Top surface and bottom surface are perpendicular.Certainly, datum hole 21 not exclusively can also mutually hang down with the top surface of positioning datum block 2 and bottom surface
Directly, certain deviation is also allowed, because passage of the datum hole 21 as feeler gauge 6, it is vertical not directly affect threaded hole
The measurement accuracy of degree.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 3 and Figure 4, the datum hole 21
There are 2, and 21 bottom of at least one datum hole has mounting groove 22.The mounting groove 11 is opened in 2 bottom of positioning datum block, installation
The purpose of design of groove 22 is that when having boss 12 at 1 threaded hole of big end of detection, boss 12 can be inlaid into installation
In groove 22 so that big end end face can fit with 2 bottom surface of positioning datum block.In a wherein embodiment, only one
21 bottom of datum hole has mounting groove 22.In another embodiment, two datum holes, 21 bottom all has mounting groove 22.It can be applicable in
Operation is measured in the screw thread hole verticality of big end 1 as shown in FIG. 7 and 8.The big end 1 is U-shaped structure, big end
1 end face has 45 ° of angle with connecting rod axis perpendicular, and 1 end face of big end of U-shaped structure is while open up fluted 11, separately
While there is boss 12；The first threaded hole 111 is offered at groove 11, the second threaded hole 121 is offered at boss 12, using this
Utility model can measure the verticality of the first threaded hole 111 and the second threaded hole 121.
Further optimization based on the present embodiment, in another embodiment, as shown in Fig. 2, 3 bottom of measurer main body
It is additionally provided with bottom plate 4.The design of bottom plate 4 is easy to the utility model clamping on the table.
Further, in another embodiment, the bottom surface of the bottom plate 4 and the top surface of positioning datum block 2 and bottom surface phase
It is parallel.In order to ensure the measurement accuracy of screw thread hole verticality, then the accuracy of manufacture of the utility model itself is particularly important,
In particular for ensuring that 2 top surface of positioning datum block is parallel with bottom surface.So just need first to 2 top surface of positioning datum block and bottom
The depth of parallelism in face is examined, and the bottom surface of bottom plate 4 is as datum level, when the top surface for ensuring positioning datum block 2 and bottom surface are distinguished
When being parallel to each other with the bottom surface of bottom plate 4, then 2 top surface of positioning datum block is parallel with bottom surface.
Further optimization based on the present embodiment, in another embodiment, as shown in Fig. 2, the jacking mechanism includes
It is arranged at the pedestal 52 of 3 sidepiece of measurer main body and is assemblied in 3 sidepiece of measurer main body and rotatable eccentric wheel 54, and the bias
Wheel 54 penetrates the T-shaped that can be moved up and down and holds out against first 51, and the T-shaped from bottom to top positioned at the lower section of pedestal 52, the pedestal 52
Hold out against first 51 to be placed on eccentric wheel 54, the T-shaped holds out against on first 51 suit and has elastic component 53, and the flexible member 53 is located at
T-shaped is held out against between first 51 and 52 bottom surface of pedestal, and the handle 57 for rotation eccentric wheel is provided with the eccentric wheel 54.The company of holding out against
During bar major part 1, by 57 rotation eccentric wheel 54 of handle, T-shaped is held out against first 51 and pushed up by eccentric wheel 54 so that connecting rod
Major part 1 is clamped in positioning datum block 2 and T-shaped is held out against between first 51.After 1 screw thread hole verticality of big end measures, by even
During bar major part 1 is removed；By 57 rotation eccentric wheel 54 of handle, under the action of flexible member 53, it is downward that T-shaped holds out against first 51
It is mobile, you can to remove big end 1.Being capable of conveniently clamping big end 1.In a wherein embodiment, flexible member
53 be spring.In a wherein embodiment, in a wherein embodiment, pedestal 52 is structure as a whole with measurer main body 3, positioned at amount
Has 3 sidepiece of main body.In another embodiment, pedestal 52 and measurer main body 3 are Split type structure, and mode is bolted in pedestal 52
It is assemblied in tool 3 sidepiece of main body.
Further, in another embodiment, it is described as shown in Fig. 2, 3 sidepiece of measurer main body is installed with axostylus axostyle 55
Eccentric wheel 54 is rotatably set on axostylus axostyle 55, and eccentric wheel 54 is rotatably assemblied in 3 sidepiece of measurer main body to realize.
Further, in another embodiment, as shown in Figure 2 and Figure 5, described 55 one end of axostylus axostyle is fixedly arranged on measurer main body 3
Sidepiece, 55 other end of axostylus axostyle are equipped with end cap 56, flange 551, the bias are additionally provided with the circumferencial direction of the axostylus axostyle 55
Wheel 54 is between flange 551 and end cap 56.Eccentric wheel 54 is reliably set on axostylus axostyle 55.One implements wherein
In example, axostylus axostyle 55 is structure as a whole with measurer main body 3, positioned at 3 sidepiece of measurer main body.In another embodiment, axostylus axostyle 55 and amount
Tool main body 3 is Split type structure, and axostylus axostyle 55 is inserted into 3 sidepiece of measurer main body by the connection mode of interference fit.
In conclusion using a kind of device for being used to detect big end screw thread hole verticality of the utility model, operation
Convenient, high certainty of measurement, detection efficiency is high, and cost is low, can realize the quick-clamping of big end, can detect whole screw thread
The verticality in hole, the detection operation especially suitable for big end screw thread hole verticality in batch；With reference to mounting groove design when,
The screw thread hole verticality measurement operation that big end end face can be particularly suitable for when there is boss；Certain the utility model
Detection operation suitable for other similar to the workpiece screw thread hole verticality of big end.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. device for being used to detect big end screw thread hole verticality, it is characterised in that：Including measurer main body（3）And setting In measurer main body（3）The positioning datum block at top（2）, the measurer main body（3）Sidepiece is equipped with for holding out against big end Jacking mechanism, the positioning datum block（2）Top surface it is parallel with bottom surface, and positioning datum block（2）On offer through positioning Reference block（2）Top surface and the datum hole of bottom surface（21）.
- A kind of 2. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Also Including can be inserted into datum hole（21）The interior feeler gauge for being used to detect screw thread hole verticality（6）；The feeler gauge（6）Including tablet（62）, Tablet（62）Bottom surface is provided with screw rod（63）, tablet（62）Top surface is provided with the handle for rotary screw（61）, the tablet （62）Bottom surface be planar structure, and screw rod（63）With tablet（62）Bottom surface it is perpendicular.
- A kind of 3. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Institute State datum hole（21）For slotted hole.
- A kind of 4. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Institute State datum hole（21）With positioning datum block（2）Top surface and bottom surface it is perpendicular.
- A kind of 5. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Institute State datum hole（21）There are 2, and at least one datum hole（21）Bottom has mounting groove（22）.
- A kind of 6. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Institute State measurer main body（3）Bottom is additionally provided with bottom plate（4）.
- A kind of 7. device for being used to detect big end screw thread hole verticality according to claim 6, it is characterised in that：Institute State bottom plate（4）Bottom surface and positioning datum block（2）Top surface and bottom surface it is parallel.
- A kind of 8. device for being used to detect big end screw thread hole verticality according to claim 1, it is characterised in that：Institute Stating jacking mechanism includes being arranged at measurer main body（3）The pedestal of sidepiece（52）And it is assemblied in measurer main body（3）Sidepiece is simultaneously rotatable Eccentric wheel（54）, and the eccentric wheel（54）Positioned at pedestal（52）Lower section, the pedestal（52）Penetrate from bottom to top on can making The T-shaped of lower movement holds out against head（51）, and the T-shaped holds out against head（51）It is placed in eccentric wheel（54）On, the T-shaped holds out against head（51）On Suit has elastic component（53）, and the flexible member（53）Head is held out against positioned at T-shaped（51）With pedestal（52）It is described inclined between bottom surface Heart wheel（54）On be provided with handle for rotation eccentric wheel（57）.
- A kind of 9. device for being used to detect big end screw thread hole verticality according to claim 8, it is characterised in that：Institute State measurer main body（3）Sidepiece is installed with axostylus axostyle（55）, the eccentric wheel（54）Rotatably it is set in axostylus axostyle（55）On, to realize By eccentric wheel（54）Rotatably it is assemblied in measurer main body（3）Sidepiece.
- A kind of 10. device for being used to detect big end screw thread hole verticality according to claim 9, it is characterised in that： The axostylus axostyle（55）One end is fixedly arranged on measurer main body（3）Sidepiece, axostylus axostyle（55）The other end is equipped with end cap（56）, the axostylus axostyle （55）Circumferencial direction on be additionally provided with flange（551）, the eccentric wheel（54）Positioned at flange（551）With end cap（56）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721334054.7U CN207351374U (en) | 2017-10-17 | 2017-10-17 | A kind of device for being used to detect big end screw thread hole verticality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721334054.7U CN207351374U (en) | 2017-10-17 | 2017-10-17 | A kind of device for being used to detect big end screw thread hole verticality |
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| Publication Number | Publication Date |
|---|---|
| CN207351374U true CN207351374U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721334054.7U Active CN207351374U (en) | 2017-10-17 | 2017-10-17 | A kind of device for being used to detect big end screw thread hole verticality |
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| CN (1) | CN207351374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375607A (en) * | 2019-08-07 | 2019-10-25 | 天津市增益达精锻齿轮科技有限公司 | A kind of automobile bevel gear detects trip gear automatically |
| CN113357989A (en) * | 2021-04-25 | 2021-09-07 | 东风佛吉亚排气控制技术有限公司 | Welding perpendicularity gauge |
-
2017
- 2017-10-17 CN CN201721334054.7U patent/CN207351374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375607A (en) * | 2019-08-07 | 2019-10-25 | 天津市增益达精锻齿轮科技有限公司 | A kind of automobile bevel gear detects trip gear automatically |
| CN113357989A (en) * | 2021-04-25 | 2021-09-07 | 东风佛吉亚排气控制技术有限公司 | Welding perpendicularity gauge |
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