CN201926392U - External-thread measuring device - Google Patents
External-thread measuring device Download PDFInfo
- Publication number
- CN201926392U CN201926392U CN2010206901526U CN201020690152U CN201926392U CN 201926392 U CN201926392 U CN 201926392U CN 2010206901526 U CN2010206901526 U CN 2010206901526U CN 201020690152 U CN201020690152 U CN 201020690152U CN 201926392 U CN201926392 U CN 201926392U
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- gauge head
- thread
- pin
- screw
- head
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an external-thread measuring device, which belongs to the technical field of measuring instruments, is particularly adapted to detecting and measuring external threads with medium and large sizes and is mainly and technically characterized in that a measured thread is measured by adopting an adjustable two-point contacted measuring head, an upper measuring head and a lower measuring head are processed in pairs by adopting an external-thread grinding method, the spiral rise angle of the measuring head is identical to that of the measured thread, and thus, the detecting precision can be ensured, the processing difficulty is lowered, and the processing cycle is shortened; and when the measuring head is partially abraded, the measuring head can be dismounted, reground and repaired to restore the precision, the service life of the measuring head is effectively prolonged, the cost is greatly lowered, and the actual numerical values of the medium and small diameters of a large external thread and the geometric errors, such as the roundness, the taper and the like of the thread can be directly obtained from a measuring result through a dial gauge or a digital display instrument. The external-thread measuring device has the characteristics of high precision, long service life, rapidness in measurement, directness in reading and the like.
Description
Technical field
The utility model relates to a kind of external thread measurement mechanism, belongs to the surveying instrument technical field, and it is adapted to centering especially, the large scale external thread detects and measures.
Background technology
Screw thread has been used widely at the many industry fields of national economy as the important form of fastening, connection, sealing etc., the detection of double thread, measure particularly in, large-scale externally threaded detection and measuring more and more causes widely and payes attention to.In the background technology, the at present domestic Method and kit for that is used for detecting large-scale major diameter of external thread has a lot, and detect large-scale externally threaded in, generally all be that the employing ring thread gage detects to verify its trafficability characteristic during path.Because ring thread gage can only the externally threaded physical dimension of qualitative detection, it accurately in the quantitative measurment external thread, the size of the actual value of path, can not determine the true shape of screw thread, simultaneously, there is long, defective such as cost is higher, versatility is poor, can't repair after the wearing and tearing of process-cycle in ring thread gage.In order to overcome above deficiency, externally the screw measurement device is developed.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of external thread measurement mechanism, it adopt adjustable 2 contact gauge heads and by clock gauge or digital display instrument, directly measure in the large-scale external thread, errors in geometrical form such as the circularity of the actual numerical value size of path and screw thread, tapering.Characteristics such as it has precision height, long service life, measurement is quick and reading is direct.
The technical scheme that its technical matters of solving the utility model adopts is: it comprises base, attaching nut, support, handle, shift fork, spacer pin, rotating shaft screw rod, top board, dial framework, movable gauge head, clock gauge, vertical pin, spring, goes up screw rod, adjusts nut, lining, flat head screw, constraint pin, fixedly gauge head, lower platen, housing screw
Support is connected on the base by the attaching nut, and top board and lower platen are individually fixed in the upper and lower end of support by screw, and there is a waist shape vertical slot side of top board,
The movable gauge head of side belt restraining pin is loaded in the top board center pit, fixedly gauge head fixedly is loaded in the center pit of lower platen by 2 housing screws, movable gauge head and fixedly the central axis of gauge head in same plane, overlap, movable gauge head and fixedly gauge head all adopt externally threaded method for grinding to process in pairs, and the lead angle of gauge head is identical with the lead angle of tested screw thread, guarantee the consistance of pitch
Dial framework on top board, has the upright opening of belt material cover by screw retention on the dial framework, clock gauge is loaded in the upright opening, and flat head screw is by pressing fixedly clock gauge of lining,
Shift fork is loaded on the support by the rotating shaft screw rod, and the U-shaped groove of shift fork front end is plugged on the constraint pin, and one handle is equipped with in the rear end of shift fork, and spacer pin is plugged in the hole of the support above the shift fork, and shift fork is played position-limiting action,
Vertical pin is loaded on the shift fork upper end, and band is adjusted the last screw rod spinning of nut on dial framework, and the vertical axis of vertical pin and last screw rod overlaps, and spring housing is loaded on vertical pin and the last screw rod.
The utility model is compared the beneficial effect that is produced with prior art:
1, adopts adjustable 2 contact gauge heads, fundamentally changed the boundary Control theory of conventional threads ring gauge, the actual value of footpath and path during but direct quantitative is measured, in the large-scale external thread, understand the shape of screw thread, geometrical dimension tolerances such as the tapering of detection screw thread, circularity, under the identical situation of pitch,, can in the certain size scope, measure the different external thread of pitch same size by adjusting the gauge head displacement.
2, movable gauge head and fixedly gauge head adopt externally threaded method for grinding to process in pairs, the lead angle of gauge head is identical with the lead angle of tested screw thread, guaranteed accuracy of detection, reduced difficulty of processing, shortened the process-cycle, when probe part wore and tore, gauge head can being unloaded again, the grinding reparation just can recover precision, effectively prolong the serviceable life of gauge head, significantly reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model external thread measurement mechanism.
Fig. 2 is the partial structurtes synoptic diagram of shift fork 5 among Fig. 1, top board 8, dial framework 9 etc.
Fig. 3 is that the A of Fig. 2 is to synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is further described.
A kind of external thread measurement mechanism, it comprises base 1, attaching nut 2, support 3, handle 4, shift fork 5, spacer pin 6, rotating shaft screw rod 7, top board 8, dial framework 9, movable gauge head 10, clock gauge 11, vertical pin 12, spring 13, goes up screw rod 14, adjusts nut 15, lining 16, flat head screw 17, constraint pin 18, fixedly gauge head 19, lower platen 20, housing screw 21.
The movable gauge head 10 of side belt restraining pin 18 is loaded in top board 8 center pits, constraint pin 18 can slide in the waist shape vertical slot of top board 8 sides, fixedly gauge head 19 fixedly is loaded in the center pit of lower platen 20 by 2 housing screws 21, movable gauge head 10 and fixedly the central axis of gauge head 19 in same plane, overlap, movable gauge head 10 and fixedly gauge head 19 all adopt externally threaded method for grinding to process in pairs, and the lead angle of gauge head is identical with the lead angle of tested screw thread, guarantee the consistance of pitch, so both can guarantee accuracy of detection, reduce difficulty of processing, when probe part weares and teares, gauge head can being unloaded again, the grinding reparation just can recover precision, can effectively prolong gauge head serviceable life, significantly reduce cost.
Measuring process
1, measures the preceding standard check gauge that passes through with clock gauge 11 zeroings.
2, the external thread to be measured bottom fixedly gauge head 19 of packing into, fixedly the screw thread of gauge head 19 front ends and external thread to be measured mesh fully.
3, press down handle 4, upwards raise movable gauge head 10 in right amount by shift fork 5, external thread to be measured top enters movable gauge head 10.
4, slow release lever 4, movable gauge head 10 slides in the waist shape vertical slot of top board 8 sides by constraint pin 18, and pressured external thread to be measured is downwards gradually treated the screw thread and the external thread tight engagement to be measured of movable gauge head 10 front ends.
5, directly read measured value by clock gauge 11.
It below only is most preferred embodiment of the present utility model, according to above-mentioned design, those skilled in the art can to movable gauge head 10 and fixedly gauge head 19 make various changes and conversion, as: for the common external thread of the identical different size of pitch, a displacement that only needs to adjust gauge head can be measured; For the common external thread of different pitch, only needing to change the gauge head identical with tested thread pitch can measure; For the external thread of special screw threads such as serrate, trapezoidal, pipe thread, only need to change and a gauge head that external thread has an identical tooth form can be measured.The essence that this change more than similar and conversion all belong to the invention.
Claims (3)
1. external thread measurement mechanism is characterized in that: it comprises base (1), attaching nut (2), support (3), handle (4), shift fork (5), spacer pin (6), rotating shaft screw rod (7), top board (8), dial framework (9), movable gauge head (10), clock gauge (11), vertical pin (12), spring (13), goes up screw rod (14), adjusts nut (15), lining (16), flat head screw (17), constraint pin (18), fixedly gauge head (19), lower platen (20), housing screw (21);
Support (3) is connected in base (1) by attaching nut (2), and top board (8) and lower platen (20) are individually fixed in the upper and lower end of support (3) by screw;
The movable gauge head (10) of side belt restraining pin (18) is loaded in top board (8) center pit, fixedly gauge head (19) fixedly is loaded in the center pit of lower platen (20) by 2 housing screws (21), the movable gauge head (10) and the fixing central axes of gauge head (19);
Dial framework (9) on top board (8), has the upright opening of a belt material cover (16) by screw retention on the dial framework (9), clock gauge (11) is loaded in the upright opening, and flat head screw (17) is by pressing fixedly clock gauge (11) of lining (16);
Shift fork (5) is loaded on the support (3) by rotating shaft screw rod (7), and the U-shaped groove of shift fork (5) front end is plugged in constraint pin (18), and one handle (4) is equipped with in its rear end, and spacer pin (6) is plugged on the support (3) of shift fork (5) top;
Vertical pin (12) is loaded on shift fork (5) upper end, and band is adjusted last screw rod (14) spinning of nut (15) on dial framework (9), and the vertical axis of vertical pin (12) and last screw rod (14) overlaps, and spring (13) is set on vertical pin (12) and the last screw rod (14).
2. a kind of external thread measurement mechanism according to claim 1 is characterized in that there is a waist shape vertical slot side of described top board (8), and the constraint pin (18) on the movable gauge head (10) can slide in waist shape vertical slot.
3. external thread measurement mechanism according to claim 1, it is characterized in that described movable gauge head (10) and fixedly gauge head (19) all adopt externally threaded method for grinding to process in pairs, and the lead angle of gauge head is identical with the lead angle of tested screw thread, guarantees the consistance of pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206901526U CN201926392U (en) | 2010-12-30 | 2010-12-30 | External-thread measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206901526U CN201926392U (en) | 2010-12-30 | 2010-12-30 | External-thread measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926392U true CN201926392U (en) | 2011-08-10 |
Family
ID=44430237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206901526U Expired - Fee Related CN201926392U (en) | 2010-12-30 | 2010-12-30 | External-thread measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168940A (en) * | 2010-12-30 | 2011-08-31 | 江南机器（集团）有限公司 | Measuring instrument for external screw thread |
| CN103335581A (en) * | 2013-06-24 | 2013-10-02 | 中国石油天然气集团公司 | Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method |
-
2010
- 2010-12-30 CN CN2010206901526U patent/CN201926392U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168940A (en) * | 2010-12-30 | 2011-08-31 | 江南机器（集团）有限公司 | Measuring instrument for external screw thread |
| CN103335581A (en) * | 2013-06-24 | 2013-10-02 | 中国石油天然气集团公司 | Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method |
| CN103335581B (en) * | 2013-06-24 | 2016-08-10 | 中国石油天然气集团公司 | Female adapter pitch diameter measurement positioning templet and central diameter measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGNAN INDUSTRIES GROUP CO., LTD. Free format text: FORMER NAME: JIANGNAN MACHINERY (GROUP) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Bamboo town Yuhu District 411207 Hunan city of Xiangtan Province Patentee after: Jiangnan Industries Group Co., Ltd. Address before: Nan Zhushan Yuhu District 411207 Hunan city of Xiangtan Province Patentee before: Jiangnan Machinery (Group) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20181230 |