SU1579731A1 - Fixture for sharpening point tool - Google Patents

Abstract

The invention relates to a machine tool industry, the manufacture of cutting tools and can be used to sharpen end tools, such as twist drills. The purpose of the invention is to simplify the design of the device and expand its technological capabilities. The carriage 3 communicates with the working surface of the cam 1 by means of two support rollers 2, the axes of which are parallel to the axis of cam 1, cam 1 is set in a certain position by means of latch 4 disposed in groove 5 of the non-working part 6 of cam 1, and carriage 3 in elastic interaction with the cam 1 in the direction of its axis by means of elastic elements 8. The blank is made with a grinding wheel 9. The geometries of the rear surface of the teeth of the end tool 10 (for example, a drill) are determined by the configuration of the working surface STI cams 1 and the distance between the axes of the support rollers 2. 2-yl.

Description

(21) 4453951 / 31-08 (22) 07/05/88 (46) 07.23.90. Bul P 27

(71) Vladimir Polytechnic Institute

(72) V.I. Denisenko and T.A. Kotova (55). 621.984.7 (088.8)

(56) Dibner L.G. and others. Sharpening spiral drills. M: Mechanical Engineering, 1967, p. 79, fig.51.

(54) TOOLS FOR SHARPENING THE END TOOL

(57) The invention relates to a machine tool industry, the manufacture of cutting tools and can be used to sharpen an end tool, such as twist drills. The purpose of the invention is to simplify the design of the device and expand its technological capabilities. The carriage 3 communicates with the working surface of the cam 1 by means of two support rollers 2, the axes of which are parallel to the axis of cam 1, cam 1 is set in a certain position by means of latch 4 disposed in groove 5 of the non-working part 6 of cam 1, and carriage 3 in elastic interaction with cam 1 in the direction of its axis by means of elastic elements 8. Grinding is performed with a grinding wheel 9. The geometry of the rear surface of the teeth of the end tool 10 (for example, a drill) is determined by the configuration of the working surface. of the cam 1 and the distance between the axles of the support rollers 2. 2 Il.

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3.1579731

The invention relates to a machine tool industry, the manufacture of cutting tools and can be used in the sharpening of end tools, such as twist drills.

The purpose of the invention is to simplify the design of the device in expanding its technological capabilities.

Figure 1 schematically shows the device, a general view; Fig. 2 shows the carriage device, section.

The fixture contains a base

14 with the end tool 180, the nut 16 is unscrewed,

ten

sleeves 10 on

the spring-loaded clips 13 are embedded in the sleeve 12, a turn is made manually, the nut 16 is screwed. The support rollers 2 are not detached from the surface of the cam 1 due to the elastic elements 8 associated with the cam axis.

The support rollers 2 are arranged with the possibility of adjusting the distance L between them, which allows the end tool to change the angle of inclination

(not shown) and cam 1 relief, 75 10 to the axis of the grinding wheel 9 and semi-supporting rollers 2, carriage 3, fixture 4, grooves 5, non-working part 6 of the cam, axis 7 of the cam 19 elastic elements 8. Grinding done with grinding wheel 9 The end tool 10 is installed in the housing 11, having a sleeve 12, spring-loaded latches 13, a sleeve 14, an sprocket 15, a nut 16. The housing 11 has grooves 17 for mounting rollers 2 by means of nuts 18,

These elements are interrelated as follows. The support rollers 2 of the carriage 3 with the end tool 10 are in contact with the working surface of the relief cam 1. The support rollers 2 are installed in the slots 17 of the housing 11 of the carriage 3 fixedly at a distance L with nuts 18. To fix the cam 1 into one of the grooves 5 of the non-working part 6 of the cam 1, the retainer 4 is lowered. The carriage 3 is connected to the axis 7 of the cam 1 by elastic elements 8 The sleeve 12 is fixed in the housing I. The fixing of the end tool 10 is provided with an asterisk 15 and a nut 16.

Device for sprocket end of the tool works as follows.

The carriage 3 with the end tool 10 fixed in it (for example, with a drill) makes movement with manual feeding along the traverse of cam 1, which is fixed by means of a clamp 4, lowered into one of the grooves 5 of the non-working part 6 of cam 1. With a grinding wheel 9, one tooth is ground drill and after turning 180 ° different. For turning

20

25

thirty

35

40

45

50

55

Part various rear corners when sharpening. The axles of the support rollers 2 are parallel to the axis of the cam 1, and the rollers are mounted in two grooves 17 of the housing 11.

Installing the latch 4 in different grooves 5 of the cam 1 allows sharpening with the movement of the tool 10 in different sections of the profile, i.e. change the back angle of the drill.

The proposed design of the device provides the possibility of obtaining various forms of the back surface of the teeth of the end tool and various sizes of the rear corners of these teeth.

Claims (1)

Invention Formula A sharpening tool for an end tool, made in the form of a base and placed on it with the possibility of turning the cam relief cam around its axis and installed in contact with its working surface by means of a carriage support roller, characterized in that, in order to simplify the design, the tool is equipped the second support roller and the retainer, grooves are made on the working surface of the cam for placing the retainer in them, the axes of the support rollers are parallel to the cam axis, the rollers are mounted on aretke chance regulirovki1 their interaxial distance, and the carriage is arranged in elastic interaction with the working surface of the cam in the direction of its axis. 14 with the end tool 180, the nut 16 is unscrewed, 0 sleeves 10 on the spring-loaded clips 13 are embedded in the sleeve 12, a turn is made manually, the nut 16 is screwed. The support rollers 2 are not detached from the surface of the cam 1 due to the elastic elements 8 associated with the cam axis. The support rollers 2 are arranged with the possibility of adjusting the distance L between them, which allows the end tool to change the angle of inclination 5 10 to the axis of the grinding wheel 9 and the floor Part various rear corners when sharpening. The axles of the support rollers 2 are parallel to the axis of the cam 1, and the rollers are mounted in two grooves 17 of the housing 11. Installing the latch 4 in different grooves 5 of the cam 1 allows sharpening with the movement of the tool 10 in different sections of the profile, i.e. change the back angle of the drill. The proposed design of the device provides the possibility of obtaining various forms of the back surface of the teeth of the end tool and various sizes of the rear corners of these teeth. Invention Formula A sharpening tool for an end tool, made in the form of a base and placed on it with the possibility of turning the cam relief cam around its axis and installed in contact with its working surface by means of a carriage support roller, characterized in that, in order to simplify the design, the tool is equipped the second support roller and the retainer, grooves are made on the working surface of the cam for placing the retainer in them, the axes of the support rollers are parallel to the cam axis, the rollers are mounted on aretke chance regulirovki1 their interaxial distance, and the carriage is arranged in elastic interaction with the working surface of the cam in the direction of its axis. AND sixteen eleven FIG. 2