CN203550842U - External screw thread effective diameter measuring device - Google Patents
External screw thread effective diameter measuring device Download PDFInfo
- Publication number
- CN203550842U CN203550842U CN201320755450.2U CN201320755450U CN203550842U CN 203550842 U CN203550842 U CN 203550842U CN 201320755450 U CN201320755450 U CN 201320755450U CN 203550842 U CN203550842 U CN 203550842U
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- shell
- test arm
- measuring
- measuring arm
- screw thread
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
An external screw thread effective diameter measuring device is provided. The external screw thread effective diameter measuring device is composed of an upper measuring arm, a lower measuring arm, measurers, a pointer-type dial indicator, a shell, a measuring range control locking bolt, a spring and a linear motion guide assembly; one side of the shell is provided with a measuring arm sliding groove; the top of the shell is provided with the pointer-type dial indicator; the linear motion guide assembly is arranged inside the shell; the upper measuring arm and the lower measuring arm are vertically and fixedly connected with two ball bearing guide bushings in the linear motion guide assembly respectively; the lower end of one side of the upper measuring arm is provided with the spring, wherein the side of the upper measuring arm is adjacent to the ball bearing guide bushing; the upper end of the side of the upper measuring arm contacts with a measuring end of the pointer-type dial indicator; and the lower measuring arm is provided with the measuring range control locking bolt. When measurement is performed, the measurer at one end of the lower measuring arm is immobile in a screw thread channel, and the measurer of the upper measuring arm flees through the channel, and therefore, the maximum numerical value of a measured screw thread can be indicated. According to the external screw thread effective diameter measuring device of the utility model, an elastic force measurement method is introduced, and therefore, defects of disunity in force measuring standards and repeat measurement for obtaining numerical values in manual measurement can be eliminated.
Description
Technical field the utility model relates to a kind of measurement mechanism, especially a kind of external thread effective diameter analyzer that is used for measuring external thread, ball-screw and gear effective diameter size and effective diameter circularity and tapering.
Background technology is current, and the surveying instrument of the effective diameter relative dimensions of known measurement screw thread is milscale.But due to normally spirality or circle of screw thread, during measurement, be difficult to find accurately screw thread maximum diameter, so milscale can only be regulated in advance and locks a certain size size (according to the effective diameter size of estimating), then by two, measure sub-correspondence and streak threaded passage, by feel, determine that mensuration of milscale streaks the size of raceway groove dynamics, regulates size, duplicate measurements again, so, repeatedly until feel is confirmed suitable dynamometry size, finally confirm size.This kind of loaded down with trivial details efficiency of metering system program is low, and because gauger experiences, the degree of dynamics is different there is larger measuring error to measurement result, and not yet have at present a kind of determinator of external thread effective diameter easy to use, can not meet people's production and application needs.
The deficiency that summary of the invention the utility model has for prior art, inaccurate in order to overcome existing measuring appliance measurement data, measure inefficient problem, a kind of measurement mechanism is provided, introduces the mode that elastic force is measured, can unify dynamometry, make measurement standard unified, thereby Measurement accuracy data are provided; Meanwhile, need not repeatedly regulate size, once can read and measure accurately numerical value.
The utility model is by upper test arm, lower test arm, measure son, pointer clock gauge, shell, range control clamping screw, spring and linear movement guide assembly composition, be provided with test arm sliding tray in a side of shell, at the top of shell, pointer clock gauge is installed, the measuring junction of clock gauge stretches to the inside of shell; Inside at shell is provided with linear movement guide assembly, and linear movement guide assembly is comprised of the axis of guide and ball bearing guide bushing; Upper test arm is vertical affixed with two ball bearing guide bushings in linear movement guide assembly respectively with lower test arm, at upper test arm and lower test arm, away from one end of linear movement guide assembly, is provided with and measures sub-mounting hole and locking screw keyhole; Lower end mounting spring at upper test arm near ball bearing guide bushing one side, its upper end contacts with pointer clock gauge measuring junction; On lower test arm, be provided with range control clamping screw; The open-work length at range control clamping screw place is greater than the range ability shown in shell.
Adopt after said structure, during operation, first according to the project of required measurement, select corresponding mensuration to be installed to that upper and lower test arm is measured in sub-mounting hole and locking, then use reference block regulate lower test arm position and use clamping screw fixed position, simultaneously by clock gauge to zero; During measurement, guarantee that mensuration that sub-mounting hole place connects is measured in lower test arm one end motionless in threaded passage, mensuration that upper test arm one end connects streaks raceway groove, due to the flexible dynamometry of upper test arm band, can easily cross raceway groove effective diameter maximal value, because upper test arm contacts with the measuring junction of pointer clock gauge, now just can read the full-scale reading of tested screw thread simultaneously.
The beneficial effects of the utility model are:
1, simple in structure, rationally, it is convenient to make for structure, and cost of manufacture is low.
2, by introducing elasticity dynamometry this measuring method, can avoid because of manual measurement dynamometry standard disunity and by repeated measurement, read the drawback of reading, realize unified measurement standard, the disposable accurate reading that reads.In the production fields such as high-precision ball-screw, bearing, gear, can provide more standard, Data support efficiently for machining precision and assembly precision, thereby improve product entirety assembly precision.
Description of drawings 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
Fig. 3 is sectional view of the present utility model.
Fig. 4 is the utility model measuring state schematic diagram.
Description of reference numerals:
On 1, test arm, 2 times test arms, 3 pointer clock gauges, 4 shells, 5 range control clamping screws, 6 springs, 7 axis of guides, 8 ball bearing guide bushings, 9 test arm sliding trays, 10 are measured the open-work at son, the sub-clamping screw of 11 mensuration, 12 clock gauge set nuts, 13 range control clamping screw places.
Embodiment as shown in Figure 1, Figure 2, Figure 3 shows, in external thread effective diameter analyzer, by upper test arm 1, lower test arm 2, measure son 10, pointer clock gauge 3, shell 4, range control clamping screw 5, spring 6 and linear movement guide assembly composition, a side at shell is provided with test arm sliding tray 9, at the top of shell, pointer clock gauge is installed, and fixing with clock gauge set nut 12, and the measuring junction of clock gauge stretches to the inside of shell; Inside at shell is provided with linear movement guide assembly, and linear movement guide assembly is comprised of the axis of guide 7 and ball bearing guide bushing 8; Upper test arm is vertical affixed with two ball bearing guide bushings in linear movement guide assembly respectively with lower test arm, at upper test arm and lower test arm, away from one end of linear movement guide assembly, be provided with and measure sub-mounting hole and measure sub-locking screw keyhole 11, for installation, locking, measure son; Lower end mounting spring at upper test arm near guiding ball bearing guide bushing one side, makes it in the rectilinear direction of linear movement guide assembly, have elasticity dynamometry, and the upper end of upper test arm contacts with pointer clock gauge measuring junction; When upper test arm moves, pointer clock gauge can show reading; On lower test arm, be provided with range control clamping screw, the range ability shown in the large shell of open-work 13 length at range clamping screw place, can carry out measurement range adjusting according to thread size size to be measured; According to measuring content difference, fine thread can be measured to son or steel ball and measure son and be connected with upper and lower test arm by the sub-mounting hole of mensuration of upper and lower test arm one end, and it is locked sub to fix mensuration to measure sub-clamping screw.
In Fig. 4 example, first use reference block regulate lower test arm position and use clamping screw to fix, simultaneously by pointer clock gauge " zeroing ", during measurement, guarantee that mensuration 10 that sub-mounting hole place connects is measured in lower test arm one end motionless in threaded passage, mensuration that upper test arm one end connects streaks raceway groove, due to the flexible dynamometry of upper test arm band, can easily cross raceway groove effective diameter maximal value, because upper test arm contacts with the measuring junction of pointer clock gauge, now just can read the full-scale reading of tested screw thread simultaneously.
Claims (2)
1. an external thread effective diameter analyzer, by upper test arm, lower test arm, measure son, pointer clock gauge, shell, range control clamping screw, spring and linear movement guide assembly composition, it is characterized in that: the side at shell is provided with test arm sliding tray, at the top of shell, pointer clock gauge is installed, the measuring junction of clock gauge stretches to the inside of shell; Inside at shell is provided with linear movement guide assembly, and linear movement guide assembly is comprised of the axis of guide and ball bearing guide bushing; Upper test arm is vertical affixed with two ball bearing guide bushings in linear movement guide assembly respectively with lower test arm, at upper test arm and lower test arm, away from one end of linear movement guide assembly, is provided with and measures sub-mounting hole and locking screw keyhole; Lower end mounting spring at upper test arm near ball bearing guide bushing one side, its upper end contacts with pointer clock gauge measuring junction; On lower test arm, be provided with range control clamping screw.
2. a kind of external thread effective diameter analyzer according to claim 1, is characterized in that: the open-work length at described range control clamping screw place is greater than the range ability shown in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755450.2U CN203550842U (en) | 2013-11-19 | 2013-11-19 | External screw thread effective diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755450.2U CN203550842U (en) | 2013-11-19 | 2013-11-19 | External screw thread effective diameter measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550842U true CN203550842U (en) | 2014-04-16 |
Family
ID=50468943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755450.2U Expired - Fee Related CN203550842U (en) | 2013-11-19 | 2013-11-19 | External screw thread effective diameter measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387793A (en) * | 2015-10-20 | 2016-03-09 | 西安航空动力股份有限公司 | Compressor blade runner surface profile tolerance detecting device and method |
-
2013
- 2013-11-19 CN CN201320755450.2U patent/CN203550842U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387793A (en) * | 2015-10-20 | 2016-03-09 | 西安航空动力股份有限公司 | Compressor blade runner surface profile tolerance detecting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |