CN201262545Y - Precise checking tool for axle end center hole - Google Patents
Precise checking tool for axle end center hole Download PDFInfo
- Publication number
- CN201262545Y CN201262545Y CNU2008201616985U CN200820161698U CN201262545Y CN 201262545 Y CN201262545 Y CN 201262545Y CN U2008201616985 U CNU2008201616985 U CN U2008201616985U CN 200820161698 U CN200820161698 U CN 200820161698U CN 201262545 Y CN201262545 Y CN 201262545Y
- Authority
- CN
- China
- Prior art keywords
- dial gauge
- hole
- measuring head
- place kick
- positioning seat
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a precise detection instrument for the centre bore of a shaft end, which comprises an expansion screw-plug, a positioning seat, an end cover, a dial gauge, a measuring head, positioning balls and a steel ball. The lever of the dial gauge is inserted into an axial through hole at the middle of the expansion screw-plug and locked by the external taper thread of the expansion screw-plug and the internal taper thread of the positioning seat, the measuring head is fixed on the lever of the dial gauge, and the downward end of the measuring head is a plane. The end cover is fixedly connected with the bottom end of the positing seat after the positioning balls are arranged inside the taper through holes uniformly distributed on the end cover, the bottom end of the measuring head is arranged in the through hole at the middle of the end cover; when in measurement, the positioning ball is taken as a datum, the measuring head is directly point-contacted with the steel ball arranged inside the center bore of the shaft end, the measuring head which moves upwardly causes a pointer of the dial gauge to generate deflection, and a difference value between the indicated value of the dial gauge and the standard value is read and the error value is judged. The precise detection instrument has simple, fast and accurate detection process and therefore is suitable for online detection.
Description
Technical field
The utility model relates to a kind of length class cubing, particularly a kind of cubing of online precision measurement axle head center pit.
Background technology
Center pit is the axial reference of axial workpiece machine cut processing.Before machine cut working shaft-like part, to process center pit at axle head earlier, center pit depth dimensions precision directly influences the machining precision of axle, is the axle of positioning reference with the center pit particularly, relies on the precision of center pit in following process fully.Prior art adopts height vernier calliper or depth vernier gage to cooperate steel ball to make axle head center pit depth dimensions accuracy detection, and the general cubing of this kind can accurately be measured, but detection efficiency is low, and the online cubing of using is produced in uncomfortable cooperation in batches.
The utility model content
The utility model is primarily aimed at the deficiencies in the prior art, proposes the accurate cubing of a kind of axle head center pit simple in structure, that detection efficiency is high, and this cubing is easy to detect, accurate, is particularly suitable for producing in batches the cubing of on-line measurement axle head center pit depth dimensions.
The utility model is achieved through the following technical solutions technical goal.
The accurate cubing of axle head center pit, it comprises swelling plug screw, positioning seat, end cap, dial gauge, amount head, place kick and steel ball.Its improvements are: described swelling plug screw is a flange-like, flange periphery annular knurl, and the taper thread section is provided with shaft orientation opening groove down, and the middle part axially extending bore inserts the table bar of dial gauge.Described positioning seat is the pipe box structure, and inside tapered thread hole, upper end and swelling plug screw lock dial gauge, and the amount head directly is fixedly set on the table bar of dial gauge.Described end cap is a plate-like, and the middle part is provided with through hole, and the uniform through hole of end face is fixedlyed connected with the positioning seat bottom after the uniform through hole enclosure place kick of end cap end face again.
Measure in the said structure upside down that the end is the plane, contact with axle head with the place kick of the end cap enclosure, move on the steel ball pushing tow amount head in the axle head center pit, the amount of movement of amount head is indicated by dial gauge, and the difference of dial gauge indicating value and design load is error amount.
The utility model compared with prior art has following good effect:
1, by the direct value indication measurement of dial gauge value, intuitive measurement results;
2, the amount head contacts with steel ball point with the plane, and measurement sensitivity is good, the efficiency of measurement height;
3, be positioning reference with uniform place kick, measuring basis is unified, and measuring error is little;
4, simple in structure, easy to manufacture.
Description of drawings
Accompanying drawing is the utility model structural profile synoptic diagram.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Axle head center pit precision cubing shown in the drawings, it comprises swelling plug screw 1, positioning seat 2, end cap 3, dial gauge 4, amount 5, place kick 6 and steel ball 7.Described swelling plug screw 1 middle part axially extending bore inserts the table bar of dial gauge 4, cooperates with positioning seat 2 inside tapered thread holes with the outer cone thread of swelling plug screw 1, owing to swelling plug screw 1 thread segment is provided with shaft orientation opening groove, screws the table bar of promptly locking dial gauge 4.Amount 5 directly is fixedly set on the table bar of dial gauge 4, and amount 5 is the plane towards the bottom.Described end cap 3 thickness are less than the diameter of place kick 6, and the middle part is provided with the through hole greater than amount 5 a bottom diameter, the uniform tapering through hole of the end face of end cap 3, and the hole upper end diameter is greater than the diameter of place kick 6, and the hole lower end diameter is less than place kick 6 diameters.After in the uniform tapering through hole of end cap 3, putting place kick 6, fixedly connected with positioning seat 2 bottoms again.In the present embodiment, uniform 3 the tapering through holes of end cap 3 end faces that 4mm is thick are put φ 5mm place kick 6 respectively, and tapering through hole upper end diameter is φ 6mm, and lower end diameter is φ 4mm, and place kick 6 is by free to rotate behind the enclosure.The axle head center pit of actual measurement is φ 4mm, in center pit, put φ 8mm steel ball 7, contact formation plane surveying benchmark with axle head with 3 place kick 6, by steel ball 7 direct pushing tow amounts 5, on an amount of moving 5 make dial gauge 4 be in the pointer generation equivalent deflection of zero-bit, the indicated value by reading dial gauge 4 and the difference of standard value are come the decision errors value.
The utility model is formed a measuring basis plane with 3 place kick 6, and throughput 5 contact with the point of steel ball 7 and makes the dial gauge 4 indicators indication measurement result that deflects, and quantizes indication and detects data, and is directly perceived, whole testing process is simple, fast, accurate.
Claims (3)
1, the accurate cubing of a kind of axle head center pit, it comprises swelling plug screw (1), positioning seat (2), end cap (3), dial gauge (4), amount head (5), place kick (6) and steel ball (7); It is characterized in that: described swelling plug screw (1) is flange-like, flange periphery annular knurl, and the taper thread section is provided with shaft orientation opening groove down, and the middle part axially extending bore inserts the table bar of dial gauge (4); Described positioning seat (2) is the pipe box structure, and inside tapered thread hole, upper end and swelling plug screw (1) lock dial gauge (4), and amount head (5) directly is fixedly set on the table bar of dial gauge (4); Described end cap (3) is a plate-like, and the middle part is provided with through hole, and the uniform through hole of end face is fixedlyed connected with positioning seat (2) bottom after the uniform through hole enclosure place kick (6) of end cap (3) end face again.
2, the accurate cubing of axle head center pit according to claim 1, it is characterized in that: described amount head (5) is the plane towards the bottom.
3, the accurate cubing of axle head center pit according to claim 1, it is characterized in that: described end cap (3) thickness is less than the diameter of place kick (6), uniform 3～5 through holes of end face are taper hole, and the hole upper end diameter is greater than the diameter of place kick (6), and the hole lower end diameter is less than place kick 6 diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201616985U CN201262545Y (en) | 2008-10-10 | 2008-10-10 | Precise checking tool for axle end center hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201616985U CN201262545Y (en) | 2008-10-10 | 2008-10-10 | Precise checking tool for axle end center hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262545Y true CN201262545Y (en) | 2009-06-24 |
Family
ID=40809021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201616985U Expired - Fee Related CN201262545Y (en) | 2008-10-10 | 2008-10-10 | Precise checking tool for axle end center hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262545Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940322A (en) * | 2014-03-19 | 2014-07-23 | 潍柴动力股份有限公司 | Detection tool and method for measuring conical surface height of valve seat ring |
-
2008
- 2008-10-10 CN CNU2008201616985U patent/CN201262545Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940322A (en) * | 2014-03-19 | 2014-07-23 | 潍柴动力股份有限公司 | Detection tool and method for measuring conical surface height of valve seat ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou Shenli Axle Co.,Ltd. Assignor: Feichuan Co., Ltd., Jiangsu Contract record no.: 2011320000283 Denomination of utility model: Precise detector for center hole at shaft end Granted publication date: 20090624 License type: Exclusive License Record date: 20110316 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: TAIZHOU SHENZHOU TRANSMISSION TECHNOLOGY CO., LTD. Assignor: Feichuan Co., Ltd., Jiangsu Contract record no.: 2011320000283 Date of cancellation: 20130426 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |