CN201527241U - High-accuracy electronic digital-display internal measuring micrometer - Google Patents
High-accuracy electronic digital-display internal measuring micrometer Download PDFInfo
- Publication number
- CN201527241U CN201527241U CN2009202117974U CN200920211797U CN201527241U CN 201527241 U CN201527241 U CN 201527241U CN 2009202117974 U CN2009202117974 U CN 2009202117974U CN 200920211797 U CN200920211797 U CN 200920211797U CN 201527241 U CN201527241 U CN 201527241U
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- micrometer
- measuring
- circular pipe
- claw
- measuring claw
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a high-accuracy electronic digital-display internal measuring micrometer which consists of a micrometer holder, a spiral micrometer mechanism and a digital-display device, wherein the rear part of the micrometer holder is provided with a mounting cavity; the spiral micrometer mechanism consists of a micrometer screw rod, a fixed measuring claw and a movable measuring claw; the digital-display device is arranged on the micrometer holder; the front part of the micrometer holder is provided with a circular pipe; the fixed measuring claw is arranged on the mounting cavity and the movable measuring claw is arranged on the circular pipe; the micrometer screw rod passes through the mounting cavity and is connected with the movable measuring claw in the circular pipe. Compared with the prior art, the internal measuring micrometer adopts the micrometer holder with the circular pipe at the front end, and the movable measuring claw is arranged on the circular pipe, so that the measuring force is completely acted on the circular pipe instead of the micrometer screw rod of the prior art; and as the diameter of the circular pipe is large, the rigidity is far greater than that of the micrometer screw rod, therefore, bending and deformation caused by the measuring force is greatly reduced, and the internal measuring micrometer has the characteristic of high measuring accuracy.
Description
Technical field
The utility model relates to milscale, particularly relates to a kind of high-precision electronic digital display internal measuring micrometer.
Background technology
The internal measuring micrometer of prior art and electronic digital display internal measuring micrometer, as shown in Figure 1, movable measuring claw all is mounted on the screw rod cover 18, screw rod cover 18 is installed on the micrometric screw 5, movable measuring claw 4 during measurement, screw rod cover 18 and micrometric screw 5 extend shortening simultaneously, ergometry acts on the micrometric screw fully, the distortion of micrometric screw becomes big greatly with the change of measuring length, and be non-linear can't revising technically, can't adapt to the measurement demand of modern industry so the internal measuring micrometer measuring accuracy that causes prior art is low, this is the critical defect of prior art.
Summary of the invention
Technical problem to be solved in the utility model is exactly to provide a kind of high-precision electronic digital display internal measuring micrometer for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of high-precision electronic digital display internal measuring micrometer, comprise the chi frame, spiral micrometer mechanism and digital display device, the rear portion of described chi frame is provided with the installation die cavity, described spiral micrometer mechanism comprises micrometric screw, fixation measuring pawl and movable measuring claw, described digital display device is located on the chi frame, it is characterized in that, the front portion of described chi frame is provided with a pipe, described fixation measuring pawl is located at the die cavity top is installed, described movable measuring claw is located on the pipe, and described micrometric screw passes the installation die cavity and is connected with movable measuring claw in pipe.
Compared with prior art, it is the chi frame of pipe that the utility model has adopted a kind of front end, movable measuring claw is installed on the pipe, make ergometry act on the pipe fully rather than on the micrometric screw of prior art, because the pipe diameter is big, so rigidity is much larger than micrometric screw, the flexural deformation with regard to having reduced greatly to be caused by ergometry has the high characteristics of measuring accuracy like this.
Description of drawings
Fig. 1 is the structural representation of existing internal measuring micrometer;
Fig. 2 is a profile synoptic diagram of the present utility model;
Fig. 3 is a cut-open view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As Fig. 2, shown in 3, a kind of high-precision electronic digital display internal measuring micrometer, comprise chi frame 6, spiral micrometer mechanism 1 and digital display device 2, the rear portion of described chi frame 6 is provided with the installation die cavity, described spiral micrometer mechanism 1 comprises micrometric screw 5, fixation measuring pawl 8 and movable measuring claw 4, described digital display device 2 is located on the chi frame, the front portion of described chi frame 6 is provided with a pipe 3, described fixation measuring pawl 8 is located at and is installed on the die cavity, described movable measuring claw 4 is located on the pipe, and described micrometric screw 5 passes the installation die cavity and is connected with movable measuring claw 4 in pipe 3.
Spiral micrometer mechanism 1 also comprises axle sleeve 7, fixed grid base 9, fixed grid sheet 10, moving grid sheet 11, dynamic grid base 12, guider screw, threaded sleeve 14, scale cover 15, micrometric screw 5, microdrum 16, constant force device 17, the installation die cavity of described chi frame 6 is the vertical standard-sized sheet cavity in bottom surface, the left surface of cavity is provided with a circular hole, and described axle sleeve 7 is fixed in this circular hole; The cavity right flank is provided with the threaded hole that is used to install threaded sleeve 14, and described threaded sleeve 14 is provided with the installation screw thread suitable with screw, and described threaded sleeve 14 is fixed in this threaded hole; Described fixed grid base 9, fixed grid sheet 10, moving grid sheet 11 and dynamic grid base 12 all are positioned at the cavity of chi frame 6, described micrometric screw 5 is provided with axial groove, the V-shaped shape in the cross section of this groove, described micrometric screw 5 passes threaded sleeve 14 successively, dynamic grid base 12, moving grid sheet 11, fixed grid sheet 10, fixed grid base 9 and axle sleeve 7, described dynamic grid base 12 is provided with screw, the screw of described guider screw on dynamic grid base 12 penetrates in the vee-cut of micrometric screw 5, described moving grid sheet 11 is fixing with dynamic grid base 12, described fixed grid sheet 10 is fixing with fixed grid base 9, this fixed grid base 9 is fixed on the axle sleeve 7, described movable measuring claw 4 is installed on the pipe of chi frame 6, described movable measuring claw 4 is provided with screw, described guider screw penetrates in the vee-cut of pipe through the screw on the movable measuring claw 4, the tail end of described micrometric screw 5 is connected with constant force device 17, described threaded sleeve 14 and micrometric screw 5 are connected by screw thread pair, described scale cover 15 covers are fixed on the threaded sleeve 14, described microdrum 16 is placed on the scale cover 15, the tail end wringing fit of its tail end and micrometric screw 5, described fixation measuring pawl 8 is fixed on the chi frame 6, and symmetrical with movable measuring claw 4; Described data processing equipment comprises Main Processor Unit and displacement sensing unit, and described Main Processor Unit is connected with digital display screen, and described displacement sensing unit comprises moving grid sheet 11 and fixed grid sheet 10, and wherein fixed grid sheet 10 is connected with Main Processor Unit; Described microdrum 16 is tapered with the joint of micrometric screw 5.
As shown in Figure 3, the user applies external force on constant force device 17, drive micrometric screw 5 motion of spinning, and then drive activity measuring claw 4 axially moves, drive dynamic grid base 12 simultaneously and rotate, make and between moving grid sheet 11 and the fixed grid sheet 10 relative displacement takes place that this displacement is imported the chip of Main Processor Unit automatically by the displacement sensing unit with moving grid sheet 11, after chip is handled, measurement data is presented on the digital display screen, has promptly realized the measurement of internal diameter.
Claims (1)
1. high-precision electronic digital display internal measuring micrometer, comprise chi frame, spiral micrometer mechanism and digital display device, the rear portion of described chi frame is provided with the installation die cavity, described spiral micrometer mechanism comprises micrometric screw, fixation measuring pawl and movable measuring claw, described digital display device is located on the chi frame, it is characterized in that, the front portion of described chi frame is provided with a pipe, described fixation measuring pawl is located at the die cavity top is installed, described movable measuring claw is located on the pipe, and described micrometric screw passes the installation die cavity and is connected with movable measuring claw in pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202117974U CN201527241U (en) | 2009-11-03 | 2009-11-03 | High-accuracy electronic digital-display internal measuring micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202117974U CN201527241U (en) | 2009-11-03 | 2009-11-03 | High-accuracy electronic digital-display internal measuring micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527241U true CN201527241U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202117974U Expired - Fee Related CN201527241U (en) | 2009-11-03 | 2009-11-03 | High-accuracy electronic digital-display internal measuring micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109307A (en) * | 2011-03-24 | 2011-06-29 | 苏州萃智新技术开发有限公司 | Multipurpose digital display internal micrometer |
| WO2013037190A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州蓝王机床工具科技有限公司 | Inner diameter micrometer |
| CN103376037A (en) * | 2012-04-23 | 2013-10-30 | 株式会社三丰 | Micrometer |
| CN112066933A (en) * | 2020-08-24 | 2020-12-11 | 广州数控设备有限公司 | Three-point contact type internal tooth span measuring device and measuring method |
-
2009
- 2009-11-03 CN CN2009202117974U patent/CN201527241U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109307A (en) * | 2011-03-24 | 2011-06-29 | 苏州萃智新技术开发有限公司 | Multipurpose digital display internal micrometer |
| WO2013037190A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州蓝王机床工具科技有限公司 | Inner diameter micrometer |
| GB2509447A (en) * | 2011-09-16 | 2014-07-02 | Suzhou Blue King Machine Tools Technology Co Ltd | Inner diameter micrometer |
| CN103376037A (en) * | 2012-04-23 | 2013-10-30 | 株式会社三丰 | Micrometer |
| CN103376037B (en) * | 2012-04-23 | 2017-04-12 | 株式会社三丰 | micrometer |
| CN112066933A (en) * | 2020-08-24 | 2020-12-11 | 广州数控设备有限公司 | Three-point contact type internal tooth span measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20121103 |