CN202915852U - A measuring instrument used for measuring the external thread pitch diameter error of pipe thread - Google Patents
A measuring instrument used for measuring the external thread pitch diameter error of pipe thread Download PDFInfo
- Publication number
- CN202915852U CN202915852U CN 201220647862 CN201220647862U CN202915852U CN 202915852 U CN202915852 U CN 202915852U CN 201220647862 CN201220647862 CN 201220647862 CN 201220647862 U CN201220647862 U CN 201220647862U CN 202915852 U CN202915852 U CN 202915852U
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- slide rail
- linear slide
- balladeur train
- pitch diameter
- measuring
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A measuring instrument used for measuring the external thread pitch diameter error of pipe thread and comprises a pedestal, a vertical column, a sliding rack, a follower assembly, a compaction adjusting mechanism, and a measuring head. The vertical column is fixed on one side of the pedestal and is used for supporting the sliding rack. Linear sliding rails are disposed on the vertical column horizontally. The sliding rack is connected with the linear sliding rails of the vertical column via sliding blocks. The sliding rack is also equipped with linear sliding rails. The compaction adjusting mechanism comprises an adjusting screw nut, an adjusting screw rod, and a spring sleeve. The adjusting screw nut is connected with the adjusting screw rod and is fixed on the bottom of the sliding rack. The top of the adjusting screw rod is connected with the spring sleeve. The follower assembly comprises a chassis and an opening and closing screw nut. The opening and closing screw nut is fixed on the top of the chassis while the spring sleeve is connected the bottom of the chassis. The right end of the chassis is connected with a linear sliding rail of sliding rack via a sliding block. The measuring head comprises a dial indicator and a support. The dial indicator is vertically mounted on the support. The right end of the support is fixedly connected with a linear sliding rail of the sliding rack. The structure of the measuring instrument increases measuring precision and work efficiency.
Description
Technical field
It is the gauging instrument of feature that the utility model relates to a kind of mechanical measuring means that adopts, and refers in particular to a kind of pitch diameter of external thread pulsation measurement instrument of measuring tube screw thread.
Background technology
The pitch diameter of thread is one of most important parameter in the screw thread relevant parameters, and it can't directly record, because its inner artificial imagination that is threaded body out " diameter ", only has by indirect measurement and calculates the numerical value of just knowing it.The screw thread of parts is in the manufacture process of turning processing, owing to affected by many uncertain factors such as machine tool component rigidity, vibration, gap, blank internal flaw, screw thread scuffing, burr and technique is incorrect, can make the pitch diameter of thread that processes deviation occur, come transmission to rotatablely move with such parts thread connection, " pitch diameter of thread is beated " will occur.
The domestic rare pitch diameter admeasuring apparatus device that relates to, external pitch diameter of thread pulsation measurement device, price is unusually expensive, it measures ultimate principle: the external thread ring gauge (being a kind of barrel nut of special use) with a standard closely is screwed to screw-thread pipe body appearance to be measured, insert a high rigidity, hi-Fix plug in the cylindrical tube of screw thread to be measured, this plug is with very small tapering, guaranteed that plug and screw-thread pipe body combine closely, and fully with one heart, the plug two ends hold out against so that brute force is top, and whorl work piece to be measured can only rotate around mandrel axis.Outside surface with the indicator vertical sounding ring thread gage of a clock gauge.Make one week of Mandrel Rotating, the reading maximal value in one week of ring thread gage appearance that clock gauge is measured and the difference of minimum value namely are pitch diameter of thread jitter values, generally at screw-thread pipe body two ends and middle intercropping three point measurements, can draw the general status of pitch diameter of thread jitter values.The weak point that this measuring method exists:
1, each specification thread size range of work have plus tolerance, zero tolerance, minus tolerance minute, if connect the measured tube screw thread of plus tolerance with the ring thread gage of minus tolerance, certainly will twist to enter or twist not in place, if connect the measured tube screw thread of minus tolerance with the ring thread gage of plus tolerance, although all be screwed to the position, but be difficult to exempt to have the gap accuracy that impact is measured.Therefore, the pitch diameter of thread jitter values of a kind of specification of every survey will be prepared three kinds of ring standard gauges (positive and negative, zero tolerance) of specification of the same race, and it is pretty troublesome to operate, inefficiency.
2, the pitch diameter of thread deviate of different parts is certainly different in the workpiece, it is changes in distribution with the locus difference, this measuring method is as transition piece with ring thread gage, indirectly measure beating of the pitch diameter of thread, the result who records is the whole pitch diameter of thread mean deviation value on a kind of statistical significance, rather than the pitch diameter of thread actual deviation value of particular location.Although its measurement result can be used as the standard that the pitch diameter of thread is beated that limits, for understanding each concrete position pitch diameter of thread deviate size, the reason of further analysing in depth its generation does not have actual directive significance.
The utility model content
The utility model has solved the problem of above prior art, and the directly tested screw thread of contact of a kind of measuring head is provided, and the direct also actual value of point-to-point measurement screw thread improves the measuring accuracy order of magnitude, and handled easily is increased work efficiency.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of pitch diameter of external thread jump measuring instrument of pipe thread, it is characterized in that: comprise base, column, balladeur train, follow-on subassembly, compress governor motion and measuring head, described column is fixed on base one side, be used for support carriages, the column horizontal direction is provided with linear slide rail, described balladeur train is connected on the linear slide rail of column by slide block, balladeur train is provided with linear slide rail, described compression governor motion comprises setting nut, adjusting screw(rod), spring spool, setting nut connects adjusting screw(rod), and fix with the lower end of balladeur train, the upper end linking springs sleeve of adjusting screw(rod), described follow-on subassembly comprises underframe and clasp nut, the top of underframe is clasp nut fixedly, the below links spring spool, and right-hand member is attached on the balladeur train by slide block and slide rail, and described measuring head comprises clock gauge and support, clock gauge is vertically mounted on the support, and the right-hand member of support is connected on the balladeur train through slide block and slide rail.
Further, two linear slide rails are arranged on the described balladeur train, balladeur train upper end linear slide rail along continuous straight runs, the linear slide rail of balladeur train lower end is vertically.
Further, described column is provided with the linear slide rail of two along continuous straight runs.
Further, described linear slide rail is the ball type linear slide rail.
Adopt the technical solution of the utility model, make the directly tested screw thread of contact of measuring head, direct measurement is changed in original indirect measurement, become the actual value of measuring the pointwise screw thread by the mean value of measuring whole screw thread, not only make measuring accuracy improve an order of magnitude, and position one by one carried out point-to-point measurement, and can understand in detail a size of concrete position pitch diameter of thread actual deviation value, the reason of further its generation of in-depth analysis is had great importance.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is side view of the present utility model;
Fig. 2 is front elevation of the present utility model;
Wherein: 1, base, 2, column, 21, linear slide rail, 22, linear slide rail, 3, balladeur train, 31, linear slide rail, 32, linear slide rail, 4, adjusting screw(rod), 5, setting nut, 6, spring spool, 7, underframe, 8, clasp nut, 9, workpiece for measurement, 10, clock gauge, 11, support, 12, plug, 13, deflection instrument.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1, the pitch diameter of external thread jump measuring instrument of a kind of pipe thread shown in Figure 2, comprise base 1, column 2, balladeur train 3, follow-on subassembly, compress governor motion and measuring head, described column 2 is fixed on base 1 one sides, be used for support carriages 3, column 2 horizontal directions are provided with linear slide rail 21,22, described balladeur train 3 is connected to the linear slide rail 21 of column by slide block, on 22, balladeur train 3 is provided with horizontal direction linear slide rail 31, the linear slide rail 32 of vertical direction, described compression governor motion comprises setting nut 5, adjusting screw(rod) 4, spring spool 6, setting nut 5 connects adjusting screw(rod) 4, and fix with the lower end of balladeur train 3, the upper end linking springs sleeve 6 of adjusting screw(rod) 4, described follow-on subassembly comprises underframe 7 and clasp nut 8, the top of underframe 7 is clasp nut 8 fixedly, the below links spring spool 6, right-hand member is fixed on the linear slide rail 32 of balladeur train 3 by the slide block binding, described measuring head comprises clock gauge 10 and support 11, clock gauge 10 is vertically mounted on the support 11, and the right-hand member of support 11 is fastened on the linear slide rail 31 of balladeur train 3.Linear slide rail 21 on the column 2,22 and balladeur train 3 on linear slide rail 31,32 all adopt the ball type linear slide rail, owing to rely on rolling steel ball to come transmission between its track and the slide block, reduce frictional resistance, when measuring, guarantee measuring instrument micron order walking precision, improve the accuracy of measuring.
Be installed on the deflection instrument 13 after inserting plug 12 in the workpiece for measurement 9, workpiece for measurement 9 is rotated around the center line of deflection instrument 13, balladeur train 3 is moved to an end of screw thread to be measured, the screw thread starting point that allows the clasp nut 8 of follow-on subassembly aim at workpieces for measurement 9, with adjusting screw(rod) 4 regulating spring sleeves 6, thereby make the clasp nut 8 of the follow-on subassembly of linking springs sleeve 6 press the screw thread of workpiece for measurement 9.The screw thread starting point that traversing carriage 11 allows the measurement contact of clock gauge 10 aim at workpiece for measurement 9 is measured the contact vertical top and is pressed onto in the groove of screw thread.Direction driving workpiece for measurement 9 rotates at a slow speed according to the rules, it is at the uniform velocity mobile to the other end of screw thread along the central axis of workpiece that the screw thread of workpiece for measurement 9 drives whole balladeur train 3 by clasp nut 8, and the measurement contact of clock gauge 10 is finished measurement in the uniform motion of balladeur train.The measurement contact of clock gauge 10 is in the distance of a thread pitch of balladeur train 3 every movements, and it just in time finishes the measurement of all screw threads, and the maximal value that clock gauge 10 records in this all screw thread and the difference of minimum value are exactly through deviate in this place's screw thread.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (4)
1. the pitch diameter of external thread jump measuring instrument of a pipe thread, it is characterized in that: comprise base, column, balladeur train, follow-on subassembly, compress governor motion and measuring head, described column is fixed on base one side, be used for support carriages, the column horizontal direction is provided with linear slide rail, described balladeur train is connected on the linear slide rail of column by slide block, balladeur train is provided with linear slide rail, described compression governor motion comprises setting nut, adjusting screw(rod), spring spool, setting nut connects adjusting screw(rod), and fix with the lower end of balladeur train, the upper end linking springs sleeve of adjusting screw(rod), described follow-on subassembly comprises underframe and clasp nut, and the top of underframe is clasp nut fixedly, and the below links spring spool, right-hand member is attached on the balladeur train by slide block and linear slide rail, described measuring head comprises clock gauge and support, and clock gauge is vertically mounted on the support, and the right-hand member of support is fastened on the linear slide rail of balladeur train.
2. the pitch diameter of external thread jump measuring instrument of pipe thread according to claim 1 is characterized in that: two linear slide rails are arranged on the described balladeur train, and balladeur train upper end linear slide rail along continuous straight runs, the linear slide rail of balladeur train lower end is vertically.
3. the pitch diameter of external thread jump measuring instrument of pipe thread according to claim 1, it is characterized in that: described column is provided with the linear slide rail of two along continuous straight runs.
4. the pitch diameter of external thread jump measuring instrument of the described pipe thread of arbitrary claim according to claim 1-3 is characterized in that: described linear slide rail is the ball type linear slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647862 CN202915852U (en) | 2012-11-30 | 2012-11-30 | A measuring instrument used for measuring the external thread pitch diameter error of pipe thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647862 CN202915852U (en) | 2012-11-30 | 2012-11-30 | A measuring instrument used for measuring the external thread pitch diameter error of pipe thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202915852U true CN202915852U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647862 Expired - Lifetime CN202915852U (en) | 2012-11-30 | 2012-11-30 | A measuring instrument used for measuring the external thread pitch diameter error of pipe thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202915852U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197227A (en) * | 2016-08-31 | 2016-12-07 | 湖北三环成套工业有限公司 | The leading screw of a kind of lathe and the parallelism detecting device of guide rail |
| CN107144199A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Screw thread pulsation measuring tool and screw thread axis misalignment measuring method |
| CN108955492A (en) * | 2018-08-15 | 2018-12-07 | 重庆青山工业有限责任公司 | Measure the method and device of axis tooth part straight-tooth chamfer machining residual volume |
| 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 |
| CN114006302A (en) * | 2021-10-21 | 2022-02-01 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Preformed armour clamp shaping tool |
-
2012
- 2012-11-30 CN CN 201220647862 patent/CN202915852U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197227A (en) * | 2016-08-31 | 2016-12-07 | 湖北三环成套工业有限公司 | The leading screw of a kind of lathe and the parallelism detecting device of guide rail |
| CN106197227B (en) * | 2016-08-31 | 2018-10-19 | 湖北三环成套工业有限公司 | A kind of parallelism detecting device of the leading screw and guide rail of lathe |
| CN107144199A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Screw thread pulsation measuring tool and screw thread axis misalignment measuring method |
| CN108955492A (en) * | 2018-08-15 | 2018-12-07 | 重庆青山工业有限责任公司 | Measure the method and device of axis tooth part straight-tooth chamfer machining residual volume |
| CN108955492B (en) * | 2018-08-15 | 2024-04-05 | 重庆青山工业有限责任公司 | Method and device for measuring machining residue of straight tooth chamfer of shaft tooth part |
| 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 |
| CN109141169B (en) * | 2018-11-09 | 2024-05-14 | 荆州市锦钿航空配件股份有限公司 | Thread pitch diameter runout gauge |
| CN114006302A (en) * | 2021-10-21 | 2022-02-01 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Preformed armour clamp shaping tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |