RU2566447C1 - Device for measurement of angular parameters of saws - Google Patents

Abstract

FIELD: wood working industry.

SUBSTANCE: device for measurement of angular parameters of saws includes the base, two rotary sectors and the cover. The base has the mobile axis intended for fitting-on, centring and basing of circular saws with various outer and sitting diameters at measurement of angular parameters of their teeth. For fitting-on of saws with various sitting diameters the transitional bushings fitted on the mobile axis are provisioned.

EFFECT: process of measurement of angular parameters of saws becomes simpler.

4 dwg

Description

The invention relates to the woodworking industry, in particular for the simultaneous measurement of the angular parameters of saws.

Known angle meter Babchincer containing a measuring ruler, scale (degrees), clamp, sector, arc with a scale, a fixed ruler, a moving ruler, a plate with a groove for a measuring ruler, the clamps of the ruler and the arc, the clamp of the ruler (Yakunin N.K. Preparation for work and operation of circular saws. A manual for university students. - M.: Publishing house of Moscow State Forest University. 2000. 494 p.).

However, its disadvantage is the ability to measure only two angles - the rear corner and the front angle, and - from two settings.

An analogue is a device for measuring the angular parameters of band saws containing a base, two rotary sectors and a cover (Decision on the grant of a patent for an invention dated January 31, 2014 by application No. 2012128640/13 (044803))

However, its disadvantage is the ability to measure all the angular parameters of only band saws.

An object of the invention is the simultaneous measurement of all angles - front, rear, cutting and sharpening - from a single installation of all saws - strip and circular.

This problem is solved in that the base of the device has a movable axis, moving along its longitudinal axis of symmetry, designed for nozzles of circular saws of various outer and landing diameters when measuring the angular parameters of their teeth, and for nozzles, centering and basing of saws of various landing diameters there are adapter sleeves mounted on a movable axis.

The invention is illustrated by drawings, where in FIG. 1 shows a general view of the device, FIG. 2 - jaws of rotary sectors, in FIG. 3 - node rotation sectors, in FIG. 4 - node of the movable axis.

The device for measuring the angular parameters of the saws contains a base 1 (Fig. 1) in the form of a symmetrical plate having a rounding on one side with three angular scales applied to it: the front angle γ-, the rear angle α (Fig. 1), and the cutting angle δ (Fig. . 1), on which a rotary sector 2 (Fig. 1, Fig. 2, Fig. 3) is superimposed, having a rotation handle 4 (Fig. 1), a point angle scale β (Fig. 1), a straight edge AO (Fig. 1), which serves to count the back angle on the corner scale α (Fig. 1), the line of which passes through the center of the axis of rotation of sector 3 (Fig. 1) and coincides with the working the th surface of the contact jaw 5 (Fig. 1, Fig. 2), which serves to press against the rear face of the measured tooth of the saw 6 (Fig. 1); the sector also has a slot 7 (Fig. 1) for reading the data of the rake angle γ- scale (Fig. 1). A sector 8 is superimposed on sector 2 (FIG. 1, FIG. 2, FIG. 3), having a rotation handle 9 (FIG. 1), a rake angle scale γ + (FIG. 1), and a straight edge BO (FIG. 1) , which serves to count the angle of sharpening on the angle scale β (Fig. 1), the line of which passes through the center of the axis of rotation of the sector 10 (Fig. 1) and coincides with the working surface of the contact jaw 11 (Fig. 1, Fig. 2), having a thickening 12 (Fig. 1, Fig. 2) to match its contact area with the platform of the jaw 5, which serves to press against the front face of the measured tooth of the saw 6, the sector has an axis of rotation 13 (Fig. 2) passing through the axis of rotation 3 of sector 2, and both axes rotate in the hole of the base 1.

To ensure that the cutting edge of the measured saw tooth coincides with the center of the axis of rotation of the sectors, the axis 13 has a diametrical cut to a depth equal to the thickness of the sector 2. The sectors are attached to the axes: sectors 8 to the axis 13 and sectors 2 to the axis having the shape of the sleeve 3, is made by welding, and fastening to the base 1 is made by nuts 14 through the washer 15. A cover 16 (Fig. 1) is attached to the device, which has the shape of a sector, one of its straight edges OD (Fig. 1) is perpendicular to the axis of symmetry of the base 1 and serves as the surface for the base of the band saw with measurable parameters of the tooth, the other rectilinear lateral edge is the front edge of the reference angle γ +.

In the groove of the base with a screw 20 (Fig. 4), the movable axis 17 is fixed (Fig. 4). The adapter sleeve 19 (Fig. 4) is mounted on it, on which the circular saw 18 is mounted and automatically based (Fig. 4).

The measurement of angular parameters is as follows.

On the movable axis 17, mounted in the groove of the base 1 with the screw 20, a adapter sleeve 19 is inserted on which the circular saw 18 is mounted. The circular saw is moved to the stop of one of the edges of the tooth at point O, after which the contact jaws are pressed by the rotation arms 4 and 9 5 and 11 to the front and rear faces of the tooth of the circular saw 18.

After that, the values of the angles are read: angle α - on the scale α along the edge of the AO, angle β - on the scale β along the edge of the BO, angle δ - on the scale δ on the edge of the BO, angle γ + - on the scale γ + along the edge of the CO, angle γ - - on the scale γ- along the edge of the BO.

The positive and negative rake angles (γ + and γ-) are measured as follows: when sector 8 is rotated clockwise, the edge of the OS shows the value of angle γ +, and the scale of negative values is closed by the sector; when the OB edge coincides with the axis of symmetry of the base, a zero value of the angle is obtained, with a further rotation of the sector, a negative value of the angle is opened.

The technical result that provides a solution to the problem lies in the fact that the most convenient and quick measurement of all the tooth angles of all saws is provided at the same time, consisting in combining the edge of one of the teeth with the axis of rotation of the sectors by simply pressing it all the way and pressing both contact lips of the rotary sectors to lateral sides of the tooth by turning the handles of sectors.

Claims (1)

A device for measuring the angular parameters of saws, including a base, two rotary sectors and a cover, characterized in that the base has a movable axis moving along its longitudinal axis of symmetry, designed for nozzles, centering and basing of circular saws of various outer and landing diameters when measuring angular parameters their teeth, and for the nozzle saws of different planting diameters there are adapter sleeves, mounted on a movable axis.

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