CN2091444U

CN2091444U - Internal measuring meter detecting milscale depth of parallelism

Info

Publication number: CN2091444U
Application number: CN 91209011
Authority: CN
Inventors: 张志明
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-11-03
Filing date: 1989-11-03
Publication date: 1991-12-25
Also published as: CN2106350U

Abstract

An internal measuring meter detecting milscale depth of parallelism comprises an eccentricity feeler pin, an eccentricity test anvil head, a test meter, a cradle and a rotated clamping head, etc. The device can detect the depth of parallelism of the two measuring surfaces of the milscale in direct contact type with simple structure, convenient function and carrying, exact and reliable accuracy, easy manufacture and low fabrication cost.

Description

Internal measuring meter detecting milscale depth of parallelism

The utility model belongs to the length testing technical field.

The milscale depth of parallelism is that micrometer head is measured the be separated by situation of the depth of parallelism on four positions of 90 degree of the relative gage button of face measurement face, that is micrometer head or microdrum rotate four situations of 1/4 relative gage button when changeing.

Be used at present examine and determine the cubing that milscale two is measured the face depth of parallelism, instrument has:

A. gauge block combined type b. steel ball fixed point contact, c. optical parallel, d. torsion spring table eccentric bushing contact, e. laser parallel calibrating instrument, f. milscale plane parallel somascope＜got patent application number 86209969 〉.

Parsing to existing cubing, instrument:

A.b formula assembly operation trouble, the low error of precision is big.

C. have only the milscale depth of parallelism of calibrating 100mm with interior specification, easy to wear.

D. the torsion spring table does not have the eccentric gage button head of helmet screwed pipe＜central siphon〉connection, needs to make whole watchcase chuck; The impulse stroke of next torsion spring table has only 0.1mm, realizes four device adjustment of four position depth of parallelisms calibrating palpus dos, complex structure, and it is inconvenient to use.

E. involve great expense, the clamping operation is cumbersome, can only be used for the above specification limit of 150mm.

F. chain length is measured in complex structure, lever transmission, can only be used for a position, can not realize four locational depth of parallelism calibratings.

The utility model is the complex structure that overcomes existing cubing, instrument, and scope is little, precision is low, and the shortcoming that price is expensive provides a kind of interior scale that meets the calibrating milscale depth of parallelism that vertification regulation requires.

The utility model is realized by following measures, and eccentric gauge head＜1〉and eccentric gage button head＜20〉are installed respectively at the two ends of test chart＜24 〉, and what form off-centre can directly measure axis; Lock ring pipe＜7〉lock ring axle sleeve＜8〉in the eccentric orfice＜6〉of eccentric gauge head＜1 〉, make the flexible gauge rod gauge head＜5〉and the measuring point steel ball＜18〉at eccentric gage button head＜20〉gage button trepanning＜19〉edge directly contact two of tested milscale micrometer head＜4〉and gage button＜17〉and measure the face edge, scale circles around＜4〉and＜17〉in the depth of parallelism, and two measure locational depth of parallelism of face warp-wise indicating graduation on the index line＜25〉of test chart＜24 〉; Its excess-three locational depth of parallelism is to change at 12.5,25,37.5 scales by rotating milscale microdrum＜3〉1/4, and step is examined and determine the parallelism error of three positions respectively as stated above.The convenient realization of the present utility model is that micrometer stand＜17〉is installed on the rotation chuck＜16〉of supporting seat＜14 〉, realizes through being rotatably assorted.

The utility model is compared with existing cubing, instrument, and its advantage is: can directly measure axis, measuring accuracy accurately, reliably; Utilize the test chart impulse stroke greater than 0.5mm,, realize the one-step installation correction, carry out the calibrating of the depth of parallelism on relative four positions of two measurement faces fast with 50 lattice scale correlationships on milscale micrometer head pitch 0.5mm and the microdrum.Its features simple structure, cheap, use easy to carry.

Below in conjunction with accompanying drawing the utility model is described in further detail.

＜1〉eccentric gauge head,＜2〉micrometer head trepanning,＜3〉microdrum,＜4〉micrometer head,＜5〉gauge rod gauge head,＜6〉gauge head eccentric orfice,＜7〉gauge head lock ring pipe,＜8〉axle sleeve,＜9〉gage button eccentric orfice,＜10〉gage button lock ring pipe,＜11〉micrometer stand,＜12〉clamping screw,＜13〉bearing,＜14〉supporting seat,＜15〉setscrew,＜16〉rotate chuck,＜17〉gage button,＜18〉measuring point steel ball,＜19〉gage button trepanning,＜20〉eccentric gage button head,＜21〉gage button lock ring screw,＜22〉helmet screwed pipe＜central siphon 〉,＜23〉scale,＜24〉test chart,＜25〉index line,＜26〉gauge head lock ring screw,＜27〉extension rod,＜28〉extension bar

Synoptic diagram when accompanying drawing is the calibrating milscale depth of parallelism

Axle sleeve＜8〉on the test chart＜24〉is installed on the interior gauge head lock ring pipe＜7〉of gauge head eccentric orfice＜6〉of eccentric gauge head＜1 〉; Test chart other end helmet screwed pipe＜central siphon〉＜22〉is installed in the interior gage button lock ring pipe＜10〉of the interior gage button eccentric orfice＜9〉of eccentric gage button head＜20 〉, also can connect extension rod＜27〉like milscale different series set of specifications attaching bar＜28 〉; Proofread and correct the eccentric orfice＜6〉of eccentric gauge head＜1〉and eccentric gage button head＜20 〉;＜9 〉, guarantee that gauge rod gauge head＜5〉and measuring point steel ball＜18〉are at same measurement axis at same axis; With lock ring screw＜21〉and＜26〉difference lock ring.

Micrometer head trepanning＜2〉on the scale in the depth of parallelism that assembles and gage button trepanning＜19〉are installed respectively on micrometer head＜4〉and gage button＜7 〉, micrometer stand＜11〉vertically is contained in the lonely shape recess that rotates chuck＜16 〉, and is fastening by clamping screw＜12 〉; Rotating chuck＜16〉can rotate on supporting seat＜14 〉, by setscrew＜15〉braking, bearing＜13〉is arranged in the supporting seat, and the lower end of supporting seat is boss, can be clipped on the bench vice to operate.

Concrete grammar, the step of the calibrating milscale depth of parallelism: rotate milscale microdrum＜3〉earlier to zero graduation, gauge rod gauge head＜5〉is stroke and demonstration on index line＜25〉thereupon, and the zero graduation that changes scale＜23〉overlaps with index line＜25 〉; In order to become in observed reading, left hand buttresses scale in the depth of parallelism, do not change direction, and maintenance and operator are in opposite directions, the right hand rotates＜16〉one weeks of chuck, and milscale also rotates thereupon, at this moment, gauge rod gauge head＜5〉and measuring point steel ball＜18〉circle around micrometer head＜4〉and gage button＜7〉two measurement face edges, and the depth of parallelism on first relative position of two measurement faces promptly shows on index line＜25〉the indication scale of test chart＜24 〉; Continue the calibrating of the depth of parallelism on three relative positions, change microdrum＜3〉respectively at 12.5,25,37.5 scales, the gauge rod gauge head＜5〉of test chart this moment＜24〉also respectively stroke 0.125,0.25,0.375mm, method, step with first relative position depth of parallelism of calibrating are examined and determine the error of 2,3,4 relative position depth of parallelisms respectively.

Claims

1, a kind of by eccentric gauge head (1), eccentric gage button head (20), the interior scale of the calibrating milscale depth of parallelism that test chart (24), supporting seat (14), rotation chuck (16) are formed, it is characterized in that eccentric gauge head (1) and eccentric gage button head (20) install respectively at the two ends of test chart (24), what form off-centre can directly measure axis.

2,, it is characterized in that eccentric gauge head＜1〉inside is provided with the hole of two different axis, gauge head eccentric orfice＜6〉and micrometer head trepanning＜2〉according to the interior scale of the described calibrating milscale of claim 1. depth of parallelism; Be provided with the lock ring pipe＜7〉of the axle sleeve＜8〉on the lock ring test chart＜24〉in the eccentric orfice＜6 〉, directly contact the edge that micrometer head＜4〉is measured face to guarantee gauge rod gauge head＜5 〉.

3,, it is characterized in that eccentric gage button head＜20〉inside is provided with the hole of two different axis, gage button eccentric orfice＜9〉and gage button trepanning＜19〉according to the interior scale of the described calibrating milscale of claim 1. depth of parallelism; Be provided with the lock ring pipe＜10〉of lock ring helmet screwed pipe＜central siphon〉＜22〉in the eccentric orfice＜9 〉; A measuring point steel ball＜18〉is fixed at the edge of gage button trepanning＜19 〉, can directly contact the measurement face edge of gage button＜17 〉.

4,, it is characterized in that supporting seat＜14〉lower end makes a boss, is equipped with bearing＜13〉in supporting seat according to the interior scale of the described depth of parallelism of claim 1..

5, according to the interior scale of the described depth of parallelism of claim 1., it is characterized in that rotating the curved recess of chuck＜16 〉, clamping screw＜12〉is housed on the recess; Rotating chuck＜16〉can rotate on supporting seat＜14 〉.