CN206430653U - Rounding is double to cut the extension special vernier cubing of intersection point dimensions of virtual - Google Patents

Abstract

A kind of rounding disclosed in the utility model is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is desirable to provide one kind detection simple and convenient, the quick determination method of accurate positioning.The utility model is achieved by following technical proposals, main scale (2) blade front end is formed with cup head, one is fixed on the opening clamp of ring (3) on main scale cup head by alignment pin (7) with circle is referred to, and alignment pin axle center is the extension line intersection point of the inner closed locating surface (8) of two clamp swing arm claws (1) of opening clamp, the clamp that are open are rotated according to the rounding of the side of part two to be checked around alignment pin, and may be stuck in that part to be checked (4) is double to be cut on the side of rounding two, the outer measuring jaw (5) of vernier is to be affixed by the side line away from the part rounding to be checked as measuring basis side, measure and be connected to described two side of part to be checked (4) rounding, two clamp swing arm claw inner closed locating surface angular aperture ductility intersection points to parts measurement true edge to be checked apart from size X.

Description

Rounding is double to cut the extension special vernier cubing of intersection point dimensions of virtual

Technical field

The utility model is related to a kind of double rounding extension intersection point dimensions of virtual of cutting in two sides on machine components and detects instrument, more Specifically, the utility model is related to that a kind of rounding is double to cut extension intersection point dimensions of virtual vernier cubing.

Background technology

In machinery industry manufacturing process, two sides pair, which cut rounding, to be set up between entity/lamellar body of two groups of separation Fillet position degree is an index for limiting actual feature to ideal factor shift in position amount, one for often producing and examining Difficult point.The architectural feature of machine components is very more, wherein, two sides side chamfering or rounding are the adjacent confluences of the double cuts of selected curved surface Domain and (or) parts of one, two entity interface different entities, it is possible to be connected, hand over fillet intersectional region Region face blend radius of corner of converging can be constant, change by rule, or the position dimension of the tangent control of intersectional region is wherein One of feature.One Typical cubic body both sides, three sides, the curved surface that crosses of the rounding curved surface on the common border of four Edge Blend compound curved surfaces In model, there are adjacent or non-conterminous intersectional region curved surface S1, S2, S3, S4.Double tangent surface radius rounding Curve On The Surface intersection points prolong It is detection difficult point to stretch virtual point detection, especially becomes the extension virtual point detection of the double tangent surface rounding Curve On The Surface intersection points of radius more It is difficult point.To ensure the crudy of product and being smoothed out for Assembling Production, quality problems are found in time, to product quality energy Enough monitoring are checked on, while in order to improve checkability, rounding part extension void is cut to double commonly using position detecting tool in production The rectilinear end point for intending point is tested control, aircraft joint, frame beam-like part especially with rounding chamfering, there is double cuts neighbours The part of intersectional region architectural feature, it is to be convex to rounding song also to have two tangent bend sheet metal structural parts, three rounding curved surfaces The part of area structure character, or even also two adjacent sides are the part for concaving towards rounding curved-surface structure feature.Aircraft joint zero There is a class part to carry rounding in part, the position of the double cut end portion extensions in the side of rounding two generally requires the extension void by two sides Intend intersection point to determine as specified measurement origin, but when two sides are double cut rounding or it is double cut chamfering after, extension is cut in two sides pair The specified measurement origin of extension intersection point on straight line end points to intersecting therewith straightway is a virtual point, is detected in reality Specified measurement origin is uncertain dimensions of virtual.How fast and accurately to detect that the double of the category feature cut virtual point position chi Very little, the structural relation for ensureing overall parts is a crucial problem.Aircratfsman uses experience mostly both at home and abroad at present Method solves test problems, and empirical method extremely relies on the experience of technical staff, belong to the solution of passable property, it The degree of accuracy is not high, and without theoretical foundation.

After the both sides Edge Blend chamfering of double tangent surface parts, the position of two sides extends intersection point to determine by its side, Intersection point is imaginary intersection point.Conventional detection method is to press close to the side of part two by two squares at present, is extended with two rulers Intersection point be part both sides sideline to the length of imaginary intersection point, the vernier caliper measurement extension intersection point and side benchmark are then borrowed again Distance, determine the position relationship on part both sides.But the detection method, not only needs two people to coordinate and completes, and operate not Convenient, institute is extremely difficult by the intersection point control of two rulers formation, it is difficult to find accurate size, often relies on technical staff Visual determination, accuracy of measurement is high.

Utility model content

The purpose of this utility model is that the weak point existed for above-mentioned existing detection method detects simple there is provided one kind Convenient, easy to operate, detection efficiency is high, and the rounding of accurate positioning is double to cut extension intersection point dimensions of virtual vernier cubing.

Quick determination method and auxiliary detection instrument.

The utility model solves the technical scheme that its technical problem used：It is virtual that a kind of rounding pair cuts extension intersection point Measured outside the special vernier cubing of size, including a main scale 2 for carrying Measurement scales and the vernier slided on the blade of main scale 2 Pawl 5, it is characterised in that：The blade front end of main scale 2 is formed with cup head, and 0 groove is formed with the center of circle of the cup head, and one carries Refer to circle to be fixed on the cup head of main scale 2 the opening clamp of ring 3 by the alignment pin 7 concentric with the center of circle, and the axle of alignment pin 7 The heart is the extension line intersection point of the inner closed locating surface 8 of two clamp swing arm claws 1 of opening clamp, and opening clamp are according to treating zero-detection The rounding of the side of part two is rotated around alignment pin 7, and be may be stuck in part 4 pairs to be checked and cut on the side of rounding two, the outer measuring jaw 5 of vernier with It is measuring basis side to be affixed by the side line away from the rounding of part 4 to be checked, measures and is connected to the part rounding to be checked The angular aperture ductility intersection point of 1 inner closed locating surface of clamp swing arm claw 8 of two side of angle two is to the measuring basis side of part 4 to be checked Distance, you can alignd the scale value of groove by reading on main scale measuring jaw 5 outside vernier, obtain that 4 liang of sides of part to be checked are double to cut Rounding extends intersection point to the dimensions of virtual X on measuring basis side.

Utility model has the advantages that compared to prior art.

Detect simple and convenient.The utility model adjusts the open card for the angle opened according to the size of part angle to be checked Pincers, can directly read the position of virtual point on main scale by the both sides by being attached to part to be checked, running fix chi clamping reference plane Size is put, simple and convenient is detected, prior art is solved and borrows vernier caliper measurement part both sides extension intersection point and side benchmark Distance, it is necessary to two people coordinate completes, inconvenient operation, human error is big and the problem of inconvenient operation.

Detection efficiency is high, accurate positioning.The utility model will be fixed the opening clamp of ring 3 by alignment pin 7 with finger circle Positioned on the semi arch center of circle of main scale end, and using the axle center of alignment pin 7 as two inner closeds of clamp swing arm claw 1 of opening clamp The extension line intersection point in face 8, by the quick positioning of two two locating surfaces of the inner side of clamp swing arm claw 1, the outer measuring jaw 5 of vernier can root According to the position length transverse shifting of virtual point, the inner closed that opening two clamp swing arm claws 1 of clamp can be measured rapidly is determined Quick and precisely found out virtually by auxiliary slide calliper rule to the distance on the measuring basis side of part 4 to be checked on the summit of the opening angle of plane 8 Point, positioning are quick, and accurately, detection efficiency is very high.Solve and use empirical method mostly both at home and abroad at present, rely on technical staff The solution of property is gathered together, the degree of accuracy is not high, the defect of gear shaper without theoretical infrastructural support.

It is applied widely.Different type, different size part can be met using a set of auxiliary detection instrument of the utility model The auxiliary detection of virtual point, and save testing cost.It is particularly suitable for use in double rectilinear ends for cutting rounding part extension virtual point Control of testing is put, aircraft joint, frame beam-like part especially with rounding chamfering there are the adjacent intersectional region knots of double cuts The part of structure feature.

Brief description of the drawings

Fig. 1 is that the utility model aids in detection instrument front view.

Fig. 2 is Fig. 1 static structure schematic diagram.

Fig. 3 is the part schematic diagram to be checked of the virtual point with rounding.

In figure：1 clamp swing arm claw, 2 main scales, 3 refer to circle ring, 4 parts to be checked, the outer measuring jaw of 5 verniers, 6 lock-screws, 7 Alignment pin, 8 inner closed locating surfaces, 9 vernier scales.

Embodiment

Refering to Fig. 1.In embodiment described below, a kind of rounding is double to cut the special vernier inspection of extension intersection point dimensions of virtual Measuring jaw 5 outside tool, including a main scale 2 for carrying Measurement scales and the vernier slided on the blade of main scale 2, its feature exists In：The blade front end of main scale 2 is formed with cup head, 0 groove is formed with the center of circle of the cup head, one with finger circle ring 3 Opening clamp are fixed on the cup head of main scale 2 by the alignment pin 7 concentric with the center of circle, and the axle center of alignment pin 7 is open card The extension line intersection point of the inner closed locating surface 8 of two clamp swing arm claws 1 is clamped, opening clamp are according to the side of part two to be checked Rounding is rotated around alignment pin 7, and be may be stuck in part 4 pairs to be checked and cut on the side of rounding two, and the outer measuring jaw 5 of vernier is remote to be affixed by The side line of the rounding of part to be checked 4 is measuring basis side, measures and is connected to the side two of part rounding to be checked two The angular aperture ductility intersection point of 1 inner closed locating surface of individual clamp swing arm claw 8 to the measuring basis side of part 4 to be checked distance, i.e., It can be alignd the scale value of groove by reading on main scale measuring jaw 5 outside vernier, obtain that 4 liang of sides of part to be checked are double to cut roundings extension friendship Dimensions of virtual X of the point to measuring basis side.The semi arch center of circle of main scale end cup head is detection specified measurement origin, and detection is specified Measurement origin is arranged on the angular bisector of the opening angle of inner closed locating surface 8 of described two clamp swing arm claws 1.Clamp Swing arm claw 1 and finger circle are fixed ring 3 by locating shaft 7, and clamp swing arm claw 1 and finger circle can be around cup head concentric locatings ring 3 Axle 7 is rotated, and vernier scale 9 can horizontally slip on main scale 2.The outer measuring jaw 5 of vernier slides card base and is formed integrally with vernier scale 9, edge The blade of main scale 2 is slided, the inner closed locating surface (8) of two clamp swing arm claws 1 with enclosing the scissor-shaped opening ring 3 with finger The double roundings of cutting in extension line intersection point formation detection 4 liang of sides of part to be checked extend intersection points to measuring basis side dimensions of virtual X's Ranging section.

When detecting that rounding extension intersection point dimensions of virtual is cut in 4 liang of sides of part pair to be checked, two clamp of opening clamp are moved Arm claw 1 is rotated according to the size of part both sides to be checked corner degree around alignment pin 7, and is stuck in that 4 liang of sides of part to be checked are double to cut down On disc, the outer measuring jaw 5 of vernier is affixed by the measuring basis side of part 4 to be checked, measures opening two clamp swing arm claws 1 of clamp Distance of the summit of the opening angle of inner closed locating surface 8 to the measuring basis side of part 4 to be checked, you can by reading on main scale Scale obtains the double roundings of cutting in 4 liang of sides of part to be checked and extends intersection point dimensions of virtual X.

Refering to Fig. 2, Fig. 3.The scale at intervals of 1mm is carved with main scale 2.Blade and vernier scale 9 have scale above.Blade On minimum indexing be 1 millimeter, have 10 small evenly divideds on vernier scale, 9 millimeters of overall length is 0.9 millimeter per one division, than Minimum 0.1 millimeter of indexing difference on main scale.It is defined first by vernier zero graduation line on blade during reading and reads millimeter integer, Integer part i.e. in units of millimeter.Then see which bar graduation mark aligns with the graduation mark of blade on vernier, takes closest The line of alignment carries out reading.There is n evenly divided on vernier, (n-1) individual evenly divided is total on their total length and blade Equal length, if a length of y of minimum scale on a length of x of minimum scale, main scale on vernier, then nx=(n-1) y, x=y- (y/n), main The difference of the minimum scale of chi and vernier is that Δ x=y-x=y/n, y/n are the precision of slide measure, and it determines the position of reading result Number.The measurement accuracy that slide measure is improved it can be seen from formula is to increase the number of division on vernier or reduced on main scale Minimum scale value.Generally y is 1 millimeter, and n takes 10,20,50 its corresponding precision to be 0.1,0.05 millimeter, 0.02 millimeter. One lock-screw 6 is arranged at vernier top, and vernier can be fixed on to the optional position on blade.The inner side of two clamp swing arm claws 1 Closed orientation face 8 and vernier outer measuring jaw 5 are directed at the zero graduation line of main scale 2 when fitting.Before detection, the outer measuring jaw 5 of vernier and clamp The inner closed locating surface 8 of swing arm claw 1 is combined closely, should be without obvious gap, while the zero-bit groove of vernier scale 9 and main scale 2 It is mutually aligned.The line of the inner closed locating surface 8 and measuring jaw outside vernier 5 of clamp swing arm claw 1 is hung down in measurement process , can not be crooked directly in piece surface to be checked.Clamp swing arm claw 1 is opened by ring 3 by referring to circle first, makes clamp swing arm claw 1 opening can freely stick into part 4 to be checked, part 4 to be checked be abutted on inner closed locating surface 8, then moving cursor chi 9, measuring jaw 5 outside vernier is contacted part to be checked with slight pressure, tighten and tighten screw 6, read by main scale 2 and vernier scale 9 The double sizes for cutting rounding extension intersection point dimensions of virtual X in 4 liang of sides of part to be checked.

Claims (6)

1. a kind of rounding is double to cut the extension special vernier cubing of intersection point dimensions of virtual, including a main scale for carrying Measurement scales (2) the outer measuring jaw (5) of vernier and on the main scale (2) blade slided, it is characterised in that：Main scale (2) blade front end is formed with half Round end, is formed with 0 groove on the center of circle of the cup head, one with refer to circle the opening clamp of ring (3) by with the circle The concentric alignment pin of the heart (7) is fixed on main scale (2) cup head, and alignment pin (7) axle center is two clamp swing arms of opening clamp The extension line intersection point of the inner closed locating surface (8) of claw (1), opening clamp are according to the rounding of the side of part two to be checked around fixed Position pin (7) is rotated, and may be stuck in that part to be checked (4) is double to be cut on the side of rounding two, and the outer measuring jaw (5) of vernier is to be affixed by away from described The side line of part (4) rounding to be checked is measuring basis side, measures and is connected to the side two of part to be checked (4) rounding two Individual clamp swing arm claw (1) inner closed locating surface (8) angular aperture ductility intersection point to part to be checked (4) measuring basis side away from From, you can by reading the scale value of outer measuring jaw (5) the alignment groove of vernier on main scale (2), obtain the side of part (4) two to be checked double Cut rounding and extend intersection point to the dimensions of virtual X on measuring basis side.

2. rounding as claimed in claim 1 is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is characterised in that：Vernier Outer measuring jaw (5) is slided card base and is formed integrally with vernier scale (9), is slided along main scale (2) blade, with enclosing cutting ring (3) with finger The extension line intersection point formation detection part (4) to be checked of two clamp swing arm claw (1) inner closed locating surfaces (8) of knife-like opening The double roundings of cutting in two sides extend intersection point to measuring basis side dimensions of virtual X ranging section.

3. rounding as claimed in claim 1 is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is characterised in that：Vernier On have n evenly divided, their total length is equal with the total length of (n-1) individual evenly divided on blade, if minimum on vernier The minimum scale of a length of y of minimum scale on a length of x of scale, main scale, then nx=(n-1) y, x=y- (y/n), main scale and vernier it Difference is Δ x=y-x=y/n.

4. rounding as claimed in claim 1 is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is characterised in that：Main scale It is detection specified measurement origin to hold the semi arch center of circle, and detection specified measurement origin is arranged on described two clamp swing arm claws (1) Inner closed locating surface (8) opening angle angular bisector on.

5. rounding as claimed in claim 1 is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is characterised in that：Surveying During amount, by the line of the outer measuring jaw (5) of the inner closed locating surface (8) of clamp swing arm claw (1) and vernier perpendicular to be checked The surface of part (4).

6. rounding as claimed in claim 1 is double to cut the extension special vernier cubing of intersection point dimensions of virtual, it is characterised in that：Pass through Refer to circle clamp swing arm claw (1) is opened to ring (3), clamp swing arm claw (1) opening is freely sticked into part to be checked (4), part to be checked (4) is abutted on inner closed locating surface (8), then moving cursor chi (9), the light outer measuring jaw of pressure vernier (5) part (4) to be checked is contacted, tightens and tightens screw (6), part (4) both sides to be checked are read by main scale (2) and vernier scale (9) The double sizes for cutting rounding extension intersection point dimensions of virtual X in side.