CN2192875Y - Abbe high-precision electronic digital display caliper - Google Patents

Abstract

The abbe high-precision electronic digital display caliper is an improvement of the existing electronic digital display caliper, and comprises a grating ruler, a frame ruler, a caliper frame and a liquid crystal display screen, and is characterized in that the grating ruler used as a measuring standard quantity in a mechanical structure and the frame ruler are positioned on the same straight line with the measured quantity of a workpiece, and the abbe length measuring principle is followed, the grating ruler can be a capacitive grating, a magnetic grating or a grating, and the grating ruler can be provided with an elastic micro-moving frame.

Description

Abbe high-precision electronic digital display caliber rule

The Abbe high-accuracy electronic digital caliper belongs to a kind of dimensional measuring instrument.

Advantages such as slide calliper rule are widely used in machinery manufacturing industry, and it has simple in structure, and are easy to use, and measurement range is big, can be used for to various workpiece interior outside dimension, the degree of depth, highly, the measurement of angle and transverse tooth thickness degree.The reading part of traditional mechanical type vernier caliper mainly is made up of main groove and vernier on the blade, and it utilizes the amount of separation of blade ruling span and vernier groove to read fraction part, and its precision can only reach 0.02mm.Along with the development of modern microelectric technique, digimatic calipers develops rapidly in recent years, and electronic caliper adopts and holds grid, magnetic grid and grating sensor and special-purpose integrated circuit realization digitized measurement.Measurement result is shown by LCDs.Though the precision of electronic sensor is very high, but because the physical construction of existing slide calliper rule is unreasonable, does not follow Abbe and survey long principle, that is to say that its standard volume and mensurated amount be not on same straight line, because guide rail exists straightness error inevitably, thereby make the measuring error aggravation.Therefore, the precision of existing digimatic calipers also can only be about 0.02mm.

The purpose of this utility model is the improvement to existing digimatic calipers, designed a kind of high-accuracy electronic digital caliper that Abbe is surveyed long principle of following, that is to say that its standard volume and mensurated amount are on same straight line, make these slide calliper rule on physical construction and the precision of electronic sensor be complementary, realized the high-acruracy survey of digimatic calipers.

The utility model is the improvement to existing digimatic calipers, its electronic circuit and Sensor section are same as the prior art, its physical construction comprises grid chi 4 as shown in Figure 1, gage button 3 is arranged on grid chi 4, frame chi 5 is sleeved on the grid chi, 1 one-tenth one circular arc of frame chi 5 and chi frame, heat insulating mattress 11 is equipped with in the centre, and location survey anvil 2 is equipped with in chi frame 1 inboard, measured workpiece 12 is placed between moving gage button 3 and the location survey anvil 2, promptly on same straight line, satisfy Abbe and survey long principle, be equipped with on the frame chi 5 LCDs 7(be used for showing then measure the result), zero setting button 9, public affairs/conversion button 10 made in Great Britain can have elasticity fine motion frame 8 on grid chi 4, also can not be with.Described grid chi 4 can be to hold grid, can be magnetic grid, also can be grating.

Abbe high-accuracy electronic digital caliper and existing digimatic calipers comparison are followed Abbe and are surveyed long principle on physical construction, that is to say that its standard volume and mensurated amount (workpiece) are on same straight line, thereby the measuring accuracy that makes these slide calliper rule has improved an order of magnitude, these slide calliper rule have simple in structure, easy to use, advantage such as measurement range is wide.

Fig. 1 is an Abbe high-accuracy electronic digital caliper structural representation

Fig. 2 is external diameter gage button (inside and outside gage button is on a same straight line) synoptic diagram in the Abbe high-accuracy electronic digital caliper is measured

Fig. 3 is external diameter gage button (inside and outside gage button is not on a same straight line) synoptic diagram in the Abbe high-accuracy electronic digital caliper is measured

Fig. 4 is the Abbe high-accuracy electronic digital caliper synoptic diagram of measuring height

Mark among the figure: 1. chi frame; 2. location survey anvil; 3. moving gage button; 4. grid chi; 5. frame chi; 6. trip bolt; 7. LCDs; 8. elasticity fine motion frame; 9. zero setting button; 10. public affairs/conversion button made in Great Britain; 11. heat insulating mattress; 12. measured workpiece; 13,15. outer gage buttons; 14,16. interior gage buttons; 17. grid chi; 18. frame chi; 19. chi frame; 20. base.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing:

Fig. 1 is an Abbe high-accuracy electronic digital caliper of measuring outside dimension, wherein measured workpiece 12 is stuck between location survey anvil 2 and the moving gage button 3, wherein location survey anvil 2, chi frame 1, frame chi 5 are rigidly connected and are integral, grid chi 4 moves along frame chi 5, show its relative positions by liquid crystal method screen 7, as seen from the figure, as the grid chi 4 of measuring system standard volume and frame chi 5 and measured workpiece 12 on same straight line, meet Abbe and survey long principle, on physical construction, guarantee measuring accuracy.Elasticity fine motion frame 8 can be connected with grid chi 4 mutually by trip bolt among the figure, frame chi 5 then is connected by flexible member, when examining and determine in batches same nominal size workpiece, can transfer to grid chi 4 than the workpiece size position on a left side slightly, fixedly elasticity fine motion frame 8 is on grid chi 4, for round piece, only need workpiece is pressed between two gage buttons, grid chi 4 overcomes elastic force and moves right, and records the workpiece physical size, for the planar shaped workpiece, gage button outwards should have the guiding angle.

Fig. 2 is a kind of embodiment that measures the Abbe high-accuracy electronic digital caliper of inside/outside diameter size, no matter these slide calliper rule still be that inside dimension is all followed Abbe and surveyed and grow principle measuring outside dimension, but when measuring internal diameter, its size should be greater than measuring jaw width b, and the structure to measured workpiece also has certain limitation, and the inside dimension measuring jaw can suitable overhanging (see figure 3) for this reason, and at this moment inside dimension is measured and do not followed Abbe and survey long principle, for guaranteeing precision, its overhang should suitably limit.

The grid chi 4 of above-mentioned digimatic calipers itself can be used as pit gauge, does not therefore need special depth chi parts to fathom.

Fig. 4 is the Abbe high-accuracy electronic digital caliper of measuring height, and its center chi 17 is fixing, and grid chi 16 relative frame chis 17 move up and down, and workpiece is carried out height measure.

Its xsect of grid chi of the foregoing description can be polygonal, also can be circular.

Because the actual contact of gage button and measured workpiece is that face contacts, therefore Abbe being surveyed satisfying of long principle can only be similar to, and surveys long principle in order to meet Abbe better, and it is rational that moving gage button is made sphere.

Claims (1)

1, the Abbe high-accuracy electronic digital caliper belongs to a kind of dimensional measuring instrument, it comprises grid chi (4), gage button (3) is arranged on grid chi (4), frame chi (5) is sleeved on the grid chi, and LCDs (7) is housed on the frame chi (5), it is characterized in that frame chi (5) becomes a circular arc with chi frame (1), heat shield (11) is equipped with in the centre, chi frame (1) inboard is equipped with location survey anvil (2) measured workpiece (12) is placed between moving gage button (3) and the location survey anvil (2), promptly on same straight line, satisfies Abbe length principle.

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