CN200968848Y - Advice for measuring cone angle - Google Patents

Abstract

The utility model relates to a cone angle measurer, consists of a base (1), a guild rod (2), a sliding block (3), an adapter bolt (4), horizontal sliding rod (5) vernier (6) and an adapter bolt (7). The mentioned base (1) is provided with annular top and bottom parts, the two guild rods (2) which are connected with the top and bottom base (1) are positioned on the left and right separately, the guild rods (2) are provided with standard scale, the mentioned two sliding blocks (3) which are provided with standard scale is twined around the left and right guild rod (2) is positioned with the guild rod (2) by the adapter bolt (4), both ends of the only horizontal sliding rod (5) is fixed with the two sliding blocks (3) on the left and right guild rod (2), one end of the horizontal sliding rod (5) is provided with standard scale, another is provided with a slider, both of the two verniers (6) which is provided with exterior and interior measuring pieces on the both ends are twined around horizontal sliding rod (5), the vernier (6) is positioned with the horizontal sliding rod (5) by the adapter bolt (7). The utility model could measure the exterior and interior cone angle rapidly and accurately, and with compact structure accurate measuring result, could be extensively applied in the mechanical processing and measuring industry.

Description

The cone angle measuring instrument

Technical field

The utility model relates to a kind of instrument of measuring workpieces inside and outside circle coning angle.Belong to machining and field of measuring technique.

Background technology

In present machining and the measurement industry, the general four kinds of modes of the measurement of cone angle: companion method, sciagraphy, direct method and indirect method.Companion method is to adopt standard taper ring gauge and the cone conjunction measuring that processes, with standard taper feeler gauge and the conical bore conjunction measuring that processes; Sciagraphy is to utilize projector that circular conical surface is carried out measurement by magnification after workpiece is dissectd; Direct method is to utilize angle block gauge directly to measure the angle on the conical surface and plane; Indirect method is that measurement of angle is converted to linear measure longimetry, utilizes the trigonometric function relation to calculate cone angle.Wherein: the standard taper ring taps rule process-cycle of companion method is long, and the price height generally is used for the detection of typical products in mass production, and is just economical inadequately for the detection of multi-varieties and small-batch product.Sciagraphy needs workpiece destruction is detected.When direct method was measured cone angle, sounding rod was that line contacts with circular conical surface, and measuring result error is bigger.Indirect method is owing to be converted to linear measure longimetry with measurement of angle, and the measuring accuracy height does not destroy workpiece simultaneously again, therefore better effects if in the tapering of multi-varieties and small-batch product detects.

Indirect method is measured tapering, needs to measure three length dimensions: height H (see figure 1) between diameter D1, diameter D2 and two diameter corresponding circles.Utilize the trigonometric function relation, cone angle $\mathrm{\&alpha;}=2\arctan \frac{D_1-{\mathrm{<figure-callout\; id="2"\; label="D"\; filenames="Y20062012629800082.png,Y20062012629800091.png"\; state="\{\{state\}\}">D</figure-callout>}}_2}{2H}.$ Diameter D1 and D2 can utilize vernier caliper conveniently to measure, and measure the height H size but have now when surveying instrument can't accurately measure diameter D1 and D2 at the same time, so there are certain limitation in this method.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of instrument that can measure the inside and outside circle coning angle quickly and accurately is provided.

The purpose of this utility model is achieved in that a kind of cone angle measuring instrument, it is characterized in that it comprises pedestal, guide rod, slide block, holding screw, sideslip bar, vernier and holding screw,

Described pedestal has two up and down, is circular ring type,

Described guide rod has two, and left and right each one, be fixedly connected on up and down between two pedestals, on the guide rod 2 master scale is arranged,

Described slide block has two, and master scale is arranged on it, and two slide blocks are placed on respectively on left and right two guide rods, utilizes holding screw and guide rod location,

Described sideslip bar has one, its two ends respectively with left and right two guide rods on two slide blocks fix, can move up and down with slide block, the one side of its both sides has master scale, another side has chute,

Described vernier has two, all is placed on the sideslip bar, and the vernier two ends are respectively external pelivimetry pawl and interior measuring claw, and vernier utilizes holding screw and sideslip bar location.

The taper measurer that adopts said structure is placed on the workpiece that needs to measure, adjusts the upright position of sideslip bar, write down its scale, two vernier pawl points are clamped on the workpiece conical surface, read corresponding scale; Then the sideslip bar is adjusted to another upright position, writes down its scale, again two vernier pawl points are clamped on the workpiece conical surface, read corresponding scale.Can draw the tapering of the workpiece of surveying by simple computation.

The utility model is converted into measurement of length by the measurement with angle and achieves the goal, and therefore can measure the inside and outside circle coning angle quickly and accurately.And this device is simple to operate, and measurement result is accurate, can be widely used in machining and the fields of measurement.

Description of drawings

Fig. 1 is the schematic diagram of the tapering of indirect method measurement in the past.

Fig. 2 is the structural drawing of the utility model taper measurer.

Fig. 3 is the vertical view of Fig. 2

Fig. 4 is the A-A cut-open view of Fig. 2.

Fig. 5 surveys the fundamental diagram of interior cone angle for the utility model taper measurer.

Fig. 6 surveys the fundamental diagram of outside cone angle for the utility model taper measurer.

Among the figure: pedestal 1, guide rod 2, slide block 3, holding screw 4, sideslip bar 5, vernier 6, holding screw 7, spring leaf 8 and workpiece 9.

Embodiment

Shown in Fig. 2～4, the utility model cone angle measuring instrument mainly is made up of pedestal 1, guide rod 2, slide block 3, holding screw 4, sideslip bar 5, vernier 6 and holding screw 7.Pedestal 1 has two up and down, is circular ring type.Pedestal 1 can be made into magnetic base, utilizes magnetic force that itself and workpiece are adjacent to.Guide rod 2 has two, and left and right each one, be fixedly connected on up and down between two pedestals 1, on the guide rod 2 master scale is arranged.Slide block 3 has two, and master scale is arranged on it, and two slide blocks 3 are placed on respectively on left and right two guide rods 2, and slide block 3 utilizes holding screw 4 and guide rod 2 location.Sideslip bar 5 has one, its two ends respectively with left and right two guide rods 2 on two slide blocks 3 be screwed, can move up and down with slide block, the one side of its both sides has master scale, another side has chute.But sensor installation and digital displaying meter on the sideslip bar 5 directly show measurement result with digital pattern.Vernier 6 has two, all is placed on the sideslip bar 5, and vernier 6 two ends are respectively external pelivimetry pawl and interior measuring claw, utilizes holding screw 7 and sideslip bar 5 location.Spring leaf 8 has two, is lining in respectively between two verniers 6 and the sideslip bar 5, utilize its elastic force with vernier 6 sidelong slide bar 5 be close to.

As shown in Figure 5, when the utility model cone angle measuring instrument is measured the cone angle of internal taper hole, place it in surface of the work, at first, two verniers 6 are closed up, unclamp holding screw 4, sideslip bar 5 is vertically moved a certain distance, two verniers 6 are goed deep in the taper hole of workpiece, holding screw 4 is tightened fixing, read the scale reading H on the sideslip bar 5 ₀With two verniers 6 separately, make its external pelivimetry pawl be close to the workpiece inner conical surface again, read the reading L of two verniers 6 respectively ₀And L ₀'; Then, two verniers 6 are closed up, unclamp holding screw 4, sideslip bar 5 is vertically moved a certain distance, two verniers 6 are goed deep in the taper hole of workpiece, holding screw 4 is tightened fixing, read the scale reading H on the sideslip bar 5 ₁With two verniers 6 separately, make its external pelivimetry pawl be close to the workpiece inner conical surface again, read the reading L of two verniers 6 respectively ₁And L ₁'.The cone angle of internal taper hole passes through formula $\mathrm{\&alpha;}=2\arctan \frac{|(L_0-L_0^{\&prime;})-(L_1-{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="Y20062012629800082.png"\; state="\{\{state\}\}">L</figure-callout>}}_1^{\&prime;})|}{2|H_0-{\mathrm{<figure-callout\; id="1"\; label="H"\; filenames="Y20062012629800082.png"\; state="\{\{state\}\}">H</figure-callout>}}_1|}$ Calculate.

As shown in Figure 6, when the utility model cone angle measuring instrument is measured the cone angle of outer cone, it is upside down in surface of the work, at first, two verniers 6 are closed up, unclamp holding screw 4, sideslip bar 5 is vertically moved a certain distance, holding screw 4 is tightened fixing, read the scale reading H on the sideslip bar 5 ₀Again separately, make its interior measuring claw be close to the male cone (strobilus masculinus) of workpiece, read the reading L of two verniers 6 respectively two verniers 6 ₀And L ₀'; Then, two verniers 6 are closed up, unclamp holding screw 4, sideslip 5 is vertically moved a certain distance, holding screw 4 is tightened fixing, read the scale reading H on the sideslip bar 5 ₁Again separately, make its interior measuring claw be close to the male cone (strobilus masculinus) of workpiece, read the reading L of two verniers 6 respectively two verniers 6 ₁And L ₁'.The cone angle of internal taper hole passes through formula $\mathrm{\&alpha;}=2\arctan \frac{|\left(L_0{-L}_0^{\&prime;}\right)-|(L_1-{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="Y20062012629800082.png"\; state="\{\{state\}\}">L</figure-callout>}}_1^{\&prime;})|}{2|H_0-{\mathrm{<figure-callout\; id="1"\; label="H"\; filenames="Y20062012629800082.png"\; state="\{\{state\}\}">H</figure-callout>}}_1|}$ Calculate.

Claims (4)

1, a kind of cone angle measuring instrument is characterized in that it comprises pedestal (1), guide rod (2), slide block (3), holding screw (4), sideslip bar (5), vernier (6) and holding screw (7),

Described pedestal (1) has two up and down, is circular ring type,

Described guide rod (2) has two, and left and right each one, between two pedestals (1), guide rod has master scale on (2) about being fixedly connected on,

Described slide block (3) has two, and master scale is arranged on it, and two slide blocks (3) are placed on respectively on left and right two guide rods (2), utilizes holding screw (4) and guide rod (2) location,

Described sideslip bar (5) has one, its two ends respectively with left and right two guide rods (2) on two slide blocks (3) fixing, the one side of its both sides has master scale, another side has chute,

Described vernier (6) has two, all is placed on the sideslip bar (5), and vernier (6) two ends are respectively external pelivimetry pawl and interior measuring claw, and vernier (6) utilizes holding screw (7) and sideslip bar (5) location.

2, a kind of cone angle measuring instrument according to claim 1 is characterized in that: be lined with spring leaf (8) between described two verniers (6) and the sideslip bar (5).

3, a kind of cone angle measuring instrument according to claim 1 and 2 is characterized in that on the described sideslip bar (5) sensor and digital displaying meter being installed.

4, a kind of cone angle measuring instrument according to claim 1 and 2 is characterized in that described pedestal (1) is made into magnetic base.

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