CN101871779B

CN101871779B - Locator for inner surface and outer surface of spherical shell

Info

Publication number: CN101871779B
Application number: CN2010101665451A
Authority: CN
Inventors: 王永军; 杨华伟; 刘忠恩
Original assignee: 702th Research Institute of CSIC
Current assignee: 702th Research Institute of CSIC
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2012-07-18
Anticipated expiration: 2030-04-30
Also published as: CN101871779A

Abstract

The invention discloses a locator for the inner surface and the outer surface of a spherical shell, comprising a left circular arc matrix, a right circular arc matrix, a left locating plate and a right locating plate, wherein the left locating plate and the right locating plate are respectively connected with the left circular arc matrix and the right circular arc matrix which are mutually connected by two circular arc connecting plates; the left matrix is hinged with the connecting plate; the shape of the right side edge of the left locating plate and the shape of the left side edge of the right locating plate are respectively a convex circular arc and a concave circular arc; the convex circular arc and the concave circular arc have same centre of a circle; the left locating plate and the right locating plate are respectively curved with an inner surface position line and an outer surface position line which pass through the centre of the circle; the inner surface position line and the outer surface position line are on the same straight line; the lower side edge of the left locating plate, the lower side edge of the right locating plate, the outer side edge of the left matrix, the outer side edge of the right matrix and the outer side edge of the connecting plate are on the same circular arc line. The invention has simple structure and can conveniently and accurately position the corresponding point of the inner surface and the outer surface of the spherical shell.

Description

Locator for inner surface and outer surface of spherical shell

Technical field

The present invention relates to a kind of orientation tool, relate in particular to the steady arm that positions for spherical shell surfaces externally and internally corresponding point position.

Background technology

For face strain parameter in the housing that detects the spherical shell class formation; Can spherical shell be reduced to a sphere; Certain that choose on the sphere a bit detects; In order to guarantee accuracy, need corresponding physical location all lay the strain measuring point on the inside and outside surface of housing to this, the accuracy of inside and outside strain measuring point relative position is directly connected to the precision of face strain measurement in the housing.Prior art is generally carried out the correspondence location of the inside and outside measuring point of spherical shell by instruments such as meter ruler or clamp.There are shortcomings such as complex operation, speed is slow, efficient is low in the meter ruler localization method, and cumulative errors are bigger, therefore can only carry out coarse localization; As for the clamp localization method owing to be that movable some contact between pincers pin and spherical shell surface, be difficult to accurate mark, receive the restriction of tong arm yardstick simultaneously, when spherical shell deeply the time its top area measuring point just can't utilize clamp to carry out correspondence to locate.

Summary of the invention

To above-mentioned technical matters, the applicant provides a kind of accurately locator for inner surface and outer surface of spherical shell of corresponding location of spherical shell surfaces externally and internally measuring point of guaranteeing.

The present invention adopts following technical scheme:

The present invention includes circular-arc left matrix, right matrix; And left location-plate that is connected with both respectively and right location-plate; Said left matrix, right matrix interconnect through two circular-arc web joints; Its right-of-center in political views's matrix and said web joint are hinged, and the shape of the right edge of said left location-plate and the left side of right location-plate is respectively dome arc and concave arc, and said dome arc has concentric mutually with concave arc; Said left location-plate, right location-plate are carved with respectively through the inside surface position line in the said center of circle and outside surface position line, and said inside surface position line and outside surface position line are on same straight line.

Further, right matrix one end is provided with crooked locking handle, and the crosspiece of locking handle is connected with right matrix, and perpendicular section of locking handle is fastenedly connected through clamping screw and said web joint.

Technique effect of the present invention is: simple in structure, be prone to processing, cost low, be convenient to maintenance and deposit; Operating efficiency and positional accuracy are significantly improved than previous methods.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the cut-open view of A-A line among Fig. 1;

Fig. 3 is the cut-open view of B-B line among Fig. 1;

Fig. 4 is a working state schematic representation of the present invention.

Embodiment

See Fig. 1; The present invention includes two circular-arc web joints 3, web joint 3 right ends connect circular-arc left matrix 1 and right matrix 6 respectively, and concrete annexation is following: see Fig. 2; The left side section of two web joints 3 upper end of clamping left matrix 1 up and down, and fastening through two bolts 2; See Fig. 1, Fig. 2; The upper end of right matrix 6 is provided with crooked locking handle 4; The crosspiece of locking handle 4 is connected with right matrix 6; The right section of two web joints 3 is clamped perpendicular section and the left end of right matrix 6 of locking handle 4 up and down, perpendicular section of locking handle 4 through two clamping screws 17 with two web joints 3 are fastening up and down, the left end of right matrix 6 through bearing pin 5 with two web joints 3 are hinged up and down.The bottom of a left side matrix 1, right matrix 6 connects left location-plate 14, right location-plate 11 respectively; Concrete annexation is following: seeing Fig. 3, is example with right location-plate 11, its underpart right-hand member and right matrix 6 butts; The coupling part of location-plate 11 and right matrix 6 is clamped by two circular-arc short web joints 16 up and down; And fastening, same through two bolts 7, left matrix 1 is connected with left location-plate 14 through short web joint 15 and two bolts 8.See Fig. 1; The shape of the right edge of left side location-plate 14 and the left side of right location-plate 11 is respectively dome arc 13 and concave arc 12; Dome arc 13 has concentric mutually with concave arc 12; Left side location-plate 14, right location-plate 11 are carved with respectively through the inside surface position line 10 in the said center of circle and outside surface position line 9, and inside surface position line 10 and outside surface position line 9 are on same straight line.

See Fig. 1, Fig. 4, process was following when the present invention worked:

One, according to parameters such as the diameter of tested spherical shell (not drawing among the figure), gauges, select corresponding left location-plate 14, right location-plate 11, it can be fitted with the inside surface and the outside surface of tested spherical shell respectively.

Two, the clamping screw 17 of outwarding winding rotates right matrix 6 and makes between dome arc 13 and the concave arc 12 and open certain clearance, operates the present invention then and slips into both sides inside and outside the spherical shell from the spherical shell opening part.

Three, can adjust the spacing between dome arc 13 and the concave arc 12 through rotating right matrix 6; Make it to fit basically with the inside and outside spherical surface of spherical shell; Slightly staying the gap to be convenient to the present invention moves between test specimen two surfaces; Select a measuring point of accurate mark in advance at the spherical shell outside surface, mobile the present invention makes outside surface position line 9 corresponding with this measuring point

Four, the clamping screw 17 of screwing is completely fixed right matrix 6, and dome arc 13, concave arc 12 are completely fixed with the spherical shell surfaces externally and internally simultaneously.

Five, according to the normal of any must be through this theorem of the center of circle arbitrarily on the sphere; The point of appointment 9 last times of surface alignment line outside on outside surface; Point one corresponding with it on the inside surface fixes on inside surface position line 10, then marks the position of the corresponding measuring point of inside surface according to inside surface position line 10.

Claims

1. locator for inner surface and outer surface of spherical shell, it is characterized in that: comprise two circular-arc web joints, the web joint right ends connects circular-arc left matrix and right matrix respectively, the left side section of the two web joints upper end of clamping left matrix up and down, and through two bolted; The upper end of right matrix is provided with crooked locking handle; The crosspiece of locking handle is connected with right matrix; The right section of two web joints is clamped perpendicular section and the left end of right matrix of locking handle up and down, and perpendicular section of locking handle is fastenedly connected through two clamping screws and two web joints up and down; The left end of right matrix is through bearing pin and two web joints are hinged up and down; The bottom of left side matrix, right matrix connects left location-plate, right location-plate respectively; Right location-plate bottom right-hand member and right matrix butt; The coupling part of location-plate and right matrix is clamped by two circular-arc short web joints up and down, and through two bolted, left matrix is connected with left location-plate through lacking web joint and two bolts; The shape of the right edge of left side location-plate and the left side of right location-plate is respectively dome arc and concave arc; Said dome arc has concentric mutually with concave arc; Left side location-plate, right location-plate are carved with respectively through the inside surface position line in the said center of circle and outside surface position line, and inside surface position line and outside surface position line are on same straight line.