CN203310322U - Vernier type external diameter micrometer - Google Patents
Vernier type external diameter micrometer Download PDFInfo
- Publication number
- CN203310322U CN203310322U CN2013202440435U CN201320244043U CN203310322U CN 203310322 U CN203310322 U CN 203310322U CN 2013202440435 U CN2013202440435 U CN 2013202440435U CN 201320244043 U CN201320244043 U CN 201320244043U CN 203310322 U CN203310322 U CN 203310322U
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- Prior art keywords
- micrometer
- vernier
- external diameter
- measuring jaw
- scale body
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Abstract
The utility model discloses a vernier type external diameter micrometer comprising a vernier scale body. The vernier scale body comprises a scale body, a fixed measuring jaw fixed on one end of the scale body, and a flexible measuring jaw worn on the scale body. An external diameter micrometer assembly is installed on the vernier scale body. A scale holder capable of adjusting length of the external diameter micrometer assembly is constructed by the scale body, the fixed measuring jaw and the flexible measuring jaw. According to the vernier type external diameter micrometer, the vernier scale body capable of adjusting length is adopted to replace an original arch-shaped scale holder with fixed length, and advantages of a vernier caliper which is wide in measuring range and the external diameter micrometer which is high in accuracy are combined so that multiple common external diameter micrometers can be replaced by one vernier type external diameter micrometer. Besides, the vernier type external diameter micrometer is light in structure and convenient to use, and especially applicable to external diameter measurement of large-size workpieces.
Description
Technical field
The utility model relates to a kind of milscale, particularly a kind of vernier micrometer for external diameter.
Background technology
Outside micrometer is a kind of survey instrument that application screw pair transmission principle records length dimension, it becomes straight-line displacement by the precision-fit of micrometric screw and micrometer nut by rotatablely moving of micrometric screw, then from the reading mechanism of fixed sleeving and microdrum composition, obtains length numerical value.Existing outside micrometer mainly by chi frame, gage button, micrometer head, device for measuring force, and locking device form, wherein micrometer head comprises screw pair running part and reading device part.The chi frame is generally bow-shaped support, it is the body of outside micrometer, other parts all are arranged on the chi frame, one end of chi frame is with fixing gage button, the other end is loaded onto micrometer head, micrometric screw can move vertically, changes the fixedly relative position between gage button and micrometric screw measurement face, thereby completes the measurement to workpiece size.
At present, in the measurement of workpiece article external diameter, measure for the large workpiece larger vernier caliper of range commonly used, but because it has run counter to Abbe's principle, precision deficiency during measurement; For small workpiece outside micrometer commonly used, yet for guaranteeing the measuring accuracy of outside micrometer, its measurement range is generally less, as the common measurement upper limit, be not more than the milscale of 500mm, press the 25mm segmentation, comprise 0～25mm, 25～50mm ... 475～500mm, the milscale that the measurement upper limit is greater than 500mm to 1000mm, by the 100mm segmentation, comprises 500～600mm, 600～700mm ... 900～1000mm.Due to the measurement range of outside micrometer with the reduced size segmentation, so can only be by changing the size of its chi frame, to obtain different measurement ranges, when large workpiece article external diameter is measured, need have many outside micrometer, this all makes troubles just for use, keeping in real work, has also strengthened the manufacturing cost of outside micrometer.In addition, on the machined surface of large workpiece housing, often also has step, because corresponding milscale blade is heavier, while using common outside micrometer to measure its outside dimension, operating personnel often are not easy the equilibrium point of milscale is found accurately and produced larger personal error, and causing can't the Measurement accuracy size.
Therefore, be necessary existing outside micrometer is improved, can be in wider scope the size of precise engineering surveying workpiece, to reduce the outfit quantity of outside micrometer in real work.
The utility model content
In view of this, the utility model provides a kind of vernier micrometer for external diameter, its can be in wider scope the size of precise engineering surveying workpiece, to reduce the outfit quantity of outside micrometer in real work.
Vernier micrometer for external diameter of the present utility model, comprise the vernier scale main body, described vernier scale main body comprises blade, be fixed on the fixedly measuring jaw of described blade one end and be set on the movable measuring jaw of described blade, on described vernier scale main body, the outside micrometer assembly is installed, described blade, the fixing common chi frame that forms the adjustable length of described outside micrometer assembly of measuring jaw and movable measuring jaw.
Further, the gage button of described outside micrometer is fixed on described fixedly measuring jaw, and the micrometer head of described outside micrometer is fixed on the bottom of described movable measuring jaw, and described movable measuring jaw is provided with for by its fastening fixed part that is positioned at described blade.
Further, described fixed part is trip bolt.
Further, vernier micrometer for external diameter of the present utility model also comprises and on described fixedly measuring jaw and described movable measuring jaw, is provided with locating slot be used to locating the back-up block of described vernier micrometer for external diameter, and described back-up block is connected on described locating slot.
Further, the measurement face of described gage button all is disc with the measurement face of the micrometric screw of described micrometer head.
Further, the tactile position of the hand of described fixedly measuring jaw and described movable measuring jaw is provided with for heat insulation heat-proof device.
The beneficial effects of the utility model: vernier micrometer for external diameter of the present utility model, with the vernier scale main body of adjustable length, replace the arc chi frame of original regular length, combine the advantage that the vernier caliper measurement scope is wide, the outside micrometer precision is high, only need one can replace vernier micrometer for external diameter many common outside micrometer, and structure is light and handy, easy to use, be specially adapted to the outside diameter measuring of large-size workpiece.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the vernier micrometer for external diameter of the present embodiment, comprise vernier scale main body 1, described vernier scale main body comprises blade 10, be fixed on the fixedly measuring jaw 12 of described blade 10 1 ends and be set on the movable measuring jaw 13 of described blade 10, on described vernier scale main body 1, the outside micrometer assembly is installed, described blade 10, fixedly measuring jaw 12 and movable measuring jaw 13 forms the chi frame of the adjustable length of described outside micrometer assembly; The structure of vernier scale main body 1 and the structural similarity of common calliper, but because this vernier micrometer for external diameter is mainly used in the measuring workpieces external diameter, therefore vernier scale main body 1 can lack interior measuring claw and pit gauge, and only establish the external pelivimetry pawl, the stiff end of external pelivimetry pawl is fixedly measuring jaw 12, movable end and is the movable measuring jaw 13 that comprises vernier; The structure of outside micrometer assembly, principle and existing common milscale are roughly the same, comprise chi frame, gage button 2, micrometer head 3, device for measuring force 5 and locking device 6, but common outside micrometer adopts the bow-shaped support of regular length as the chi frame, the vernier micrometer for external diameter of the present embodiment has adopted the chi frame of adjustable length, regulative mode is identical with the vernier move mode of common calliper, and namely the relative distance between gage button 2 and micrometer head 3 can be regulated according to actual needs; During use, only need select chi frame length according to the workpiece for measurement size, then use corresponding standard master bar to carry out can measuring after zero, its precision is identical with common outside micrometer; Therefore, this vernier micrometer for external diameter combines the advantage that the vernier caliper measurement scope is large, the outside micrometer precision is high, only need one can replace vernier micrometer for external diameter many common outside micrometer, and structure is light and handy, namely be used in the measurement large-size workpiece, its volume, quality are more much smaller than the common outside micrometer of respective model.
In the present embodiment, the gage button 2 of described outside micrometer assembly is fixed on described fixedly measuring jaw 12, the micrometer head 3 of described outside micrometer assembly is fixed on the bottom of described movable measuring jaw 13, and described movable measuring jaw 13 is provided with for by its fastening fixed part that is positioned at described blade 10; Gage button 2 is relative with the micrometric screw 31 of micrometer head 3, and guarantees that their axle center and the longitudinal axis depth of parallelism of blade 10 are consistent; Movable measuring jaw 13 can also can be fixed in free slippage on blade 10, regulate the distance between gage button 2 and micrometer head 3 with this; During measurement, according to the size of workpiece size, at first determine the position of movable measuring jaw 13 on blade 10 fixing, then regulate the outside micrometer assembly and measure.
In the present embodiment, described fixed part is trip bolt 11; Trip bolt 11 can be arranged on any part that movable measuring jaw 13 contacts with blade 10, adopts spiral way that movable measuring jaw 13 is pressed on blade 10, unclamps during reverse acting spiral, and portable propelling measuring jaw 13 slides.
The vernier micrometer for external diameter of the present embodiment also comprises be used to the back-up block 4 of locating described vernier micrometer for external diameter, is provided with locating slot 14 on described fixedly measuring jaw 12 and described movable measuring jaw 13, and described back-up block 4 is connected on described locating slot 14; The axis parallel of the supporting surface of back-up block 4 and gage button 2, micrometric screw 31, for subsidiary, when measuring large-sized dish class, housing, back-up block 4 can be lain on the machined surface or step of this class workpiece, be convenient to the user and measure, and can find out more accurately the external diameter of this class workpiece.
In the present embodiment, the measurement face of described gage button 2 all is disc with the measurement face of the micrometric screw 31 of described micrometer head 3; Discoidal measurement face can strengthen between gage button 2, micrometric screw 31 and they and workpiece between contact area, avoid because of zeroing, while measuring, contact is excessive and impaired.
In the present embodiment, the hand of described fixedly measuring jaw 12 and described movable measuring jaw 13 touches position and is provided with for heat insulation heat-proof device; If while using this vernier micrometer for external diameter to measure, directly hold the metal part of vernier scale main body 1, likely because being passed to vernier scale main body 1, the hand temperature make its expansion cause small error, therefore on the tactile position of hand of fixedly measuring jaw 12 and movable measuring jaw 13, heat-proof device is housed, during use, should hold heat-proof device, contact less the metal part of vernier scale main body 1 as far as possible.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (6)
1. vernier micrometer for external diameter, comprise vernier scale main body (1), described vernier scale main body (1) comprises blade (10), be fixed on the fixedly measuring jaw (12) of described blade (10) one ends and be set on the movable measuring jaw (13) of described blade (10), it is characterized in that: on described vernier scale main body (1), the outside micrometer assembly is installed, described blade (10), fixedly measuring jaw (12) and movable measuring jaw (13) form the chi frame of the adjustable length of described outside micrometer assembly jointly.
2. vernier micrometer for external diameter according to claim 1, it is characterized in that: the gage button of described outside micrometer assembly (2) is fixed on described fixedly measuring jaw (12), the micrometer head of described outside micrometer assembly (3) is fixed on the bottom of described movable measuring jaw (13), and described movable measuring jaw (13) is provided with for by its fastening fixed part that is positioned at described blade (10).
3. vernier micrometer for external diameter according to claim 2, it is characterized in that: described fixed part is trip bolt (11).
4. vernier micrometer for external diameter according to claim 3, it is characterized in that: also comprise the back-up block (4) be used to locating described vernier micrometer for external diameter, on described fixedly measuring jaw (12) and described movable measuring jaw (13), be provided with locating slot (14), described back-up block (4) is connected on described locating slot (14).
5. vernier micrometer for external diameter according to claim 4 is characterized in that: the measurement face of described gage button (2) all is disc with the measurement face of the micrometric screw (31) of described micrometer head (3).
6. vernier micrometer for external diameter according to claim 5 is characterized in that: the hand of described fixedly measuring jaw (12) and described movable measuring jaw (13) touches position and is provided with for heat insulation heat-proof device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202440435U CN203310322U (en) | 2013-05-08 | 2013-05-08 | Vernier type external diameter micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202440435U CN203310322U (en) | 2013-05-08 | 2013-05-08 | Vernier type external diameter micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310322U true CN203310322U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202440435U Expired - Fee Related CN203310322U (en) | 2013-05-08 | 2013-05-08 | Vernier type external diameter micrometer |
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| Country | Link |
|---|---|
| CN (1) | CN203310322U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157510A (en) * | 2015-08-27 | 2015-12-16 | 徐州工业职业技术学院 | Vernier caliper and micrometer combined measuring instrument |
| CN107378637A (en) * | 2017-08-16 | 2017-11-24 | 中国重型机械研究院股份公司 | A kind of numerical control machining tool heat error control structure and method |
| CN112730252A (en) * | 2020-12-30 | 2021-04-30 | 湖南三安半导体有限责任公司 | Wafer detection device |
-
2013
- 2013-05-08 CN CN2013202440435U patent/CN203310322U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157510A (en) * | 2015-08-27 | 2015-12-16 | 徐州工业职业技术学院 | Vernier caliper and micrometer combined measuring instrument |
| CN107378637A (en) * | 2017-08-16 | 2017-11-24 | 中国重型机械研究院股份公司 | A kind of numerical control machining tool heat error control structure and method |
| CN112730252A (en) * | 2020-12-30 | 2021-04-30 | 湖南三安半导体有限责任公司 | Wafer detection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190508 |