CN2655171Y

CN2655171Y - Pocket roller type electronic length meter for curve and straight line

Info

Publication number: CN2655171Y
Application number: CN 200320112053
Authority: CN
Inventors: 吴之琚
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-28
Filing date: 2003-10-28
Publication date: 2004-11-10
Anticipated expiration: 2013-10-28

Abstract

The utility model relates to a length measurement instrument, in particular to a pocket-size rolling wheel electronic cure and straight line measurement instrument, comprising a capacitance grate electronic digital display for a caliper, which is characterized in that a data input grate is used as a base grate based on the prior capacitance grate digital display, the length measured rolling wheel grate is used as a dynamic grate, which is provided with a fixed shaft sleeve and an adjustment screw, and is enclosed by a house constructed by a superficial board and a bottom board; the rolling wheel shaft axis is concentric with the center line of the data input grate, the rolling grate covers the data input grate fully and the two grates are arranged in the opposite, parallelism and with a gap, the rolling wheel is fixed on the bottom board through the shaft sleeve matched with the wheel center hole in the tight fit, the lower edge of the wheel is stretched out from the horizontal tangent cut on the bottom of the house. The utility model has the advantages that the rolling wheel measurement head can travel randomly along the curve line and to collect the length data continuously, the random curve and straight line length is easy to measure, particularly the capacitance grate digital display technique is adopted, the data reading is fast and precisely, the structure is simple, the weight is light, carrying and the fabrication is easy, and is applicable to the length measurement for the industry machining, cutting and sizing and hand working.

Description

Pocket roller type electronics curve-straight line horizontal metroscope

Technical field

The utility model relates to a kind of length measuring instrument, particularly a kind of pocket roller type electronics curve-straight line horizontal metroscope.

Background technology

At present, commercially available " digimatic calipers ", mainly a main scale and pair chi by the configuration capacitor grid transducer constitutes, main scale is provided with fixed grid, pay on the chi and dispose the capacitive grid numeral display table, this digital display meter is mainly imported grid by the image data of making in the circuit board with data, finish the integrated circuit (IC) chip of data processing, LCD and power switch commonly used, data zero setting, the metric and English conversion, the data latching function key formation that is packaged together, when measuring length with measuring jaw, pass through main scale, pay the relative displacement of chi, make that electric capacity changes between fixed grid and moving grid, thus, displacement signal is converted to electric signal through sensor, carry out data processing through circuit again, export digital signal and directly show measurement result, but it is mainly used in the measurement of straight line line segment, and because of being subjected to the restriction of its length specification, its measurement range is limited, generally only between 150mm～500mm.

The utility model content

Fundamental purpose of the present utility model is to provide a kind of curve-straight line measurement to take into account, can measure random length at above-mentioned defective, and portability horizontal metroscope easily.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of pocket roller type electronics curve-straight line horizontal metroscope, comprise and have data input grid, data processing chip, LCD and power switch, data zero setting, the metric and English conversion, the slide calliper rule capacitive grid numeral display table of four kinds of function keys of data latching, it is characterized in that on the existing basis of described capacitive grid numeral display table, import grid as fixed grid with data, grow with the roller grid on the roller as moving grid to survey, fixed hub and adjusting screw are set, and the housing that outsourcing is made up of panel and base plate constitutes, roller is that the copper foil laminate disk by etching roller grid on it sticks on the substrate identical with its size shape by the anti-skid wearable material and constitutes, between concentric outer circumference and interior circle that the copper foil laminate disc surfaces is formed by etching line, isolate with one heart the gear-like annulus that is formed by etching line is set, circumference forms some fan-shaped grizzly bars from the radial etch line connection outer of each tooth top circular arc central authorities, the outer circumference is the long integral multiple of fan-shaped grizzly bar edge circular arc, long 8 times of importing grid rectangle grill width for data of fan-shaped grizzly bar edge circular arc, the height of roller grid is 1.43 times of data input height of grid, roller is with the central lines of its axle center with the data input grid that is arranged on the wiring board back side, whole cover data input grids of roller grid and two grid faces are relative, parallel, gapped setting, by being fixed on the base plate by adjusting screw with the friction tight axle sleeve of its center pit, its lower edge leans out from the horizontal cut of housing bottom, panel is being provided with the degree of tightness adjustment hole with the adjusting screw correspondence position, gapped between roller both sides and outer circumference and the housing, the capacitive grid numeral display table is fixed on the housing top.

The utility model has the advantages that: can arbitrarily walk curve and continuous acquisition length data with the roller type measuring head, therefore can measure bent arbitrarily, straight length easily, especially adopted the capacitive grid numeral display technology, reading is direct, make hand held, easy to use, it is simple in structure, body is in a small amount light, be easy to carry, also be easy to make, can be widely used in industrial processes, cut out blanking, make by hand etc. measurement bent, straight length.

Below in conjunction with drawings and Examples the utility model is described in detail.

Description of drawings

The front view of the pocket roller type electronics of Fig. 1 curve-straight line horizontal metroscope

The A-A sectional structure synoptic diagram of Fig. 2 Fig. 1

Fig. 3 is equipped with the panel backsight structural representation of capacitive grid numeral display table

Fig. 4 data input grid amplification assumption diagram

Fig. 5 is etched in the roller grid amplification assumption diagram on the copper foil laminate disk

1 data input grid, 2 data processing chips, 3 LCD, 4 power switch keys, 5 data zero setting keys, 6 metric and English shift keys, 7 data latching keys, 8 capacitive grid numeral display tables, 9 roller grids, 10 panels, 11 base plates, 12 housings, 13 axle sleeves, 14 adjusting screw, 15 fan-shaped grizzly bars, 16 edge circular arcs, 17 rectangle grizzly bars, 18 roller height of grid, 19 data input height of grid, 20 horizontal cut, 21 degree of tightness adjustment holes, 22 copper foil laminate disks, 23 substrates, 24 measure load-point marker, 25 wiring boards, 26 rollers

Embodiment

Shown in Fig. 1-5, it is a kind of pocket roller type electronics curve-straight line horizontal metroscope, comprise that the slide calliper rule that have data inputs grid 1, data processing chip 2, LCD 3 and power switch key 4, data zero setting key 5, metric and English shift key 6, data latching key 7 are with capacitive grid numeral display table 8, it is characterized in that on the existing basis of described capacitive grid numeral display table 8, import grid 1 as fixed grid with data, grow with the roller grid 9 on the roller 26 as moving grid to survey, fixed hub 13 and adjusting screw 14 are set, and the housing 12 that outsourcing is made up of panel 10 and base plate 11 constitutes; For strengthening the anti-skidding and wearing quality of roller 26, roller 26 is that the copper foil laminate disk 22 by etching roller grid 9 on it sticks on the substrate 23 identical with its size shape by the anti-skid wearable material and constitutes, the anti-skid wearable material can adopt teflon engineering plastics or nitrile rubber, substrate 23 thickness are 1.5-2mm, copper foil laminate thickness≤0.6mm; According to having the structure that slide calliper rule are imported grid 1 with the principle of work and the data of capacitive grid numeral display table 8 now, roller grid 9 structures that are mated have been set, on copper foil laminate disk 22 surfaces, between the concentric outer circumference and interior circle that forms by etching line, isolate with one heart the gear-like annulus that is formed by etching line is set, circumference forms some fan-shaped grizzly bars 15 from the radial etch line connection outer of each tooth top circular arc central authorities, the outer circumference is the integral multiple of fan-shaped grizzly bar edge circular arc 16 length, the length of the edge circular arc 16 of fan-shaped grizzly bar 15 is 8 times of data input grid 1 rectangle grizzly bar 17 width, the height 18 of roller grid is 1.43 times of data input height of grid 19, in this example, capacitive grid numeral display instrument 8 has adopted the digital displaying meter of commercially available C series 150F type digimatic calipers, which is provided with power switch key 4, data reset key 5, metric and English shift key 6, data latching key 7, data input grid 1 has 48 rectangle grizzly bars 17, the width of rectangle grizzly bar 17 is 0.635mm, height of grid is 7mm, the height 18 of roller grid 9 is 10mm, the length of the edge circular arc 16 of fan-shaped grizzly bar 15 is 5.08mm, and the outer circumference is 203.2mm; Roller 26 is with the central lines of its axle center with the data input grid 1 that is arranged on wiring board 25 back sides, roller grid 9 whole cover data input grids 1 and two grid faces are relative, parallel, gapped setting, has only the strict position that keeps this relative setting, just can make roller grid 9 relative datas input grid 1 freedom, steadily, contactless rotation, image data could be accurately, roller 26 is by being fixed on the base plate 11 by adjusting screw 14 with the friction tight axle sleeve 13 of its center pit, adjusting screw 14 is used for the elasticity of axle sleeve is adjusted at suitable degree, realize accurately measuring to guarantee roller 26 friction tight with it, the upper surface of axle sleeve 13 is provided with the counterbore that adjusting screw 14 is installed, adjusting screw 14 specifications are M3 * 6 in this example, crouch and install into counterbore, axle sleeve 13 internal diameters are 3mm, external diameter is 8mm, highly be 4mm, should adopt hard metal material to make, as steel; Roller 26 lower edges lean out from the horizontal cut 20 of housing 12 bottoms, so that measuring head directly contacts with measured object; Panel 10 is being provided with degree of tightness adjustment hole 21 with adjusting screw 14 correspondence positions; Panel 10 and base plate 11 connect together by screw, generally can make sub-circular, after cutting system according to the position of roller 26, the watchcase that will have capacitive grid numeral display table 8 again now is bonded in panel 10 tops, also can former digital display meter 8 watchcases are discarded, become and panel all-in-one-piece single-piece frame with mold injection; For guaranteeing freely rotating of roller 26, be provided with the gap between roller 26 its both sides and outer circumference and the housing 12, generally elect 0.3-0.5mm as; Under panel, indicate tangible measurement load-point marker 24,, measure accurately with further assurance aligned position.This device volume is little in light weight, only weighs 60 grams, and economize on electricity, precision height.

Use and principle of work:

The utility model has mainly utilized the principle of work of capacitor grid transducer, and according to the principle of work and the structure that have digital display calliper now, measuring head is converted to roller type by the moving linear measure longimetry of line rotates measurement, roller 26 promptly is that measuring head also is the moving grid of sensor, the data input grid 1 that is connected with data processing chip 2 is the fixed grid of sensor, roller grid 9 is the basis of acquisition length data with respect to the noncontact displacement of data input grid 1.Measuring process is as follows: (1) presses power switch key 4, sees that LCD 3 has shown number; (2) press 5 zero clearings of data reset key, when (3) measuring, the measurement terminal 24 of pocket roller type electronics curve-straight line horizontal metroscope panel below should be aimed at the top that desire is surveyed length, the song that beginning is surveyed along desire, the straight-line segment carefulness is rolled forward, aim at by the terminal point of profile section until terminal 24, in this process, along with the displacement of roller grid 9 with respect to data input grid 1, make that electric capacity changes between moving grid and fixed grid, thus, displacement signal is converted to electric signal through sensor, carries out data processing through circuit again, along with the continuous rolling of roller 26, signal is imported continuously, the continuous cumulative data of data handling system, and output digital signal go out measurement result by liquid crystal display displays; (4) at this moment, press data latching key 5, keep having surveyed data and do not lose; (5) measurement finishes, and presses data latching key 5 once more, and end data latchs, and presses power switch key 4, powered-down.

Claims

1, a kind of pocket roller type electronics curve-straight line horizontal metroscope, comprise and have data input grid, data processing chip, LCD and power switch, data zero setting, the metric and English conversion, the slide calliper rule capacitive grid numeral display table of four kinds of function keys of data latching, it is characterized in that on the existing basis of described capacitive grid numeral display table, import grid as fixed grid with data, grow with the roller grid on the roller as moving grid to survey, fixed hub and adjusting screw are set, and the housing that outsourcing is made up of panel and base plate constitutes, roller is that the copper foil laminate disk by etching roller grid on it sticks on the substrate identical with its size shape by the anti-skid wearable material and constitutes, between concentric outer circumference and interior circle that the copper foil laminate disc surfaces is formed by etching line, isolate with one heart the gear-like annulus that is formed by etching line is set, circumference forms some fan-shaped grizzly bars from the radial etch line connection outer of each tooth top circular arc central authorities, the outer circumference is the long integral multiple of fan-shaped grizzly bar edge circular arc, long 8 times of importing grid rectangle grill width for data of fan-shaped grizzly bar edge circular arc, the height of roller grid is 1.43 times of data input height of grid, roller is with the central lines of its axle center with the data input grid that is arranged on the wiring board back side, whole cover data input grids of roller grid and two grid faces are relative, parallel, gapped setting, by being fixed on the base plate by adjusting screw with the friction tight axle sleeve of its center pit, its lower edge leans out from the horizontal cut of housing bottom, panel is being provided with the degree of tightness adjustment hole with the adjusting screw correspondence position, gapped between roller both sides and outer circumference and the housing, the capacitive grid numeral display table is fixed on the housing top.

2, a kind of pocket roller type electronics curve-straight line horizontal metroscope according to claim 1 is characterized in that described anti-skid wearable material can adopt teflon engineering plastics or nitrile rubber.

3, a kind of pocket roller type electronics curve-straight line horizontal metroscope according to claim 1 is characterized in that indicating the measurement load-point marker under described panel.

4, a kind of pocket roller type electronics curve-straight line horizontal metroscope according to claim 1 is characterized in that its upper surface of described axle sleeve is provided with the counterbore that adjusting screw is installed.