SU1323254A1 - Method of machining holes - Google Patents

Abstract

The invention relates to the field of machining and can be used for dimensional machining of holes. The purpose of the invention is to expand technological capabilities and improve the quality of processing. The holes are machined with a needle-cutter with a spherical working surface. The center of the iglophresis is placed on the axis of the hole being drilled; 2 Il. (J) with

Description

The invention relates to machining and can be used for dimensional machining of holes.

The purpose of the invention is to expand the technological capabilities and improve the quality of processing by communicating with an iglorese, the working surface of which is made of spherical, complex movement: rotation around its own axis, movement applied along the axis of the hole being machined and rotation around the axis of the hole.

Setting the axis of the igofrease at an angle to the axis of the hole allows the plane of rotation of the tool wires to be oriented in such a way that the ends of the wires interact with the allowance, removing equal parts of the allowance. In this case, the formation of the cutting plane is carried out only by the ends of the wires, which are not pressed under certain conditions.

Figure 1 presents the scheme of the implementation of the method of needle-cutting holes; 2 is a device for carrying out the method.

The geometric center O of the igofreza I (Fig. 1) is positioned along the axis of the hole being machined in part 2. The axis of the igofreza 1 is set at an angle s / c to the axis of the opening of the part 2. The working surface of the fi ne cutter 1 is spherical with a sphere diameter D equal to the outer diameter of the needle cutter s.

When machining, igofreza 1 imparts movement of feed S and rotation around its AIR with frequency of rotation n, the axis of iglower makes movement along the cone with the top at the geometric center O of iglopresea aa by informing it to rotate around the axis of the hole with frequency n ,. In this case, the iglofreza removes the prg-tusk equal to t.

The device for carrying out the method comprises a housing 3 in which a sleeve 5 is installed in bearings 4 With a sleeve 5 there is connected a flange 6 in which axes 7 are mounted. On axis x 7, gear gears 8 are rotatably connected to the stationary gear wheel. 9 domestic for

and the central gear 10, / ivecTKO mounted on the drive of a stick 11. The gear 9 is fixedly mounted in the housing 3. The sleeve 12 is connected to the sleeve 12, the axis of which is inclined at an angle to the axis of the sleeve 5. On the sleeve 12 on bearings 13 a needle-cutter I is installed whose working surface is spherical. From the sides, the iglophresis 1 is covered with the krpps 14 and 15, connected with it by screw-pin-1I connections. The shaft 15 is rigidly connected to the shaft 16, which is connected with the drive shaft 1 by the cardan joint 17 to the drive shaft 1. The drive shaft 1 is mounted in bearings 18 and 19, respectively, in sleeves 5 and 12.

The device works as follows.

When the rotation is communicated to the drive shaft 11 through the cardan joint 17, the rotation is transmitted to the shaft 16, and from it to the 15 and the needle cutter 1, which rotates freely on the hub 12. Simultaneously through the gear 10, the gear 8 is transmitted, which, rolling on the fixed gear 9, The sleeve 5 is rotated, and the sleeve 12, on which the needle needle i is mounted, is rotated from it. Since the axis of the sleeve 2 is inclined at an angle to the axis of the sleeve 5, and the cardan joint 17 is located in the center of the igofreza 1, the axis of the latter moves along the generator of the body with a corner in the center of the iglo-cutter.

Fore

l and

gaining

The method of processing openings is a needle-cutter, the center of which is located on the axis of the hole and informs the cylinder cutter about a rotational movement around its own axis and a feed movement, characterized in that, in order to expand technological capabilities and improve the quality of treatment, the needle cutter whose working surface is spherical is installed angle to the axis of the hole and inform her of the rotational movement around the axis of the latter.

Fig /

57 3 CI I / /

Compiler G. Postnikov Editor M.Dishsh Tehred L.Serdyukova Proofreader L Pilipenko

Order 2906/14 Circulation 975 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

FIG. 2

Claims (1)

Claim 40 The method of processing holes with a needle-mill, the center of which is located on the axis of the hole and informs the needle-mill a rotational movement around its own axis and the feed movement, about 45 different. that, in order to expand technological capabilities and improve the quality of processing, an acupuncture, whose working surface is spherical, 50 set at an angle to the axis of the hole and tell her the rotational movement around the axis of the latter. FI.G.2