SU1316784A1 - Arrangement for securing parts being ground - Google Patents

Abstract

. The invention relates to the field of machining of materials by cutting, namely, devices for securing parts during grinding. The invention makes it possible to increase the accuracy of the positioning of the parts by using a clamping element and a ball bearing for supporting them in the radial direction in the axial direction. The spindle head is made of two bodies 1 and 2 fixedly mounted on the table 3 and containing supports 4 and 16. On the outer surface of the end of the hub support 4 is mounted the base 9 with the leash 10 rotatable. In the support there is an insert 12, between which and the leash 10 a ball bearing 1 3 is installed with a spring 14. In the sleeve-bearing 16 there is a radial groove 6, in which a clamping element made in the form of a T-shaped bar 17 with springs 18 is placed for movement. 2 Il. (L 4G 1 / o eo 4 ;: Fig. /

Description

The invention relates to the field of machining of materials by cutting, namely, devices for securing parts during grinding.

The invention makes it possible to improve the accuracy of the positioning of the parts by using a clamping element and a ball bearing for supporting the parts in the axial direction for positioning the parts in the radial direction.

1 shows a longitudinal section of the device; figure 2 - section aa in figure 1.

The device for grinding parts consists of a spindle bit in the form of two bodies 1 and 2, which are fixedly mounted on the table 3. In the body 1 on a support made in the form of a sleeve. And through the bearings 5, a drive pulley 6 is mounted, which by a belt 7 is connected to the drive pulley 8 A base is rigidly attached to the right end of the driven pulley 6. 9 of the leash 10, which are interconnected by fingers 11. The centering of the leash 10 is dried; the insert 12 is inserted with the ball support 13 and the spring 14 placed between it.

The part 15 is located in the support 16 of the housing 2. The support 16 is made in the form of a sleeve with a radial groove B. In B of the support 16 there is a T-shaped cracker 17, spring-loaded springs 18 relative to the support 16. There is a clamping element for parts; operating it in a bearing 16 in the radial direction. The supports A and 16 are fixedly fixed in the housings 1 and 2 by means of screws 19. The grinding of the part 15 is carried out with a grinding wheel 20 mounted in a grinding head with clamping elements and a drive (not shown). The rotation of the part 15 is carried out from the drive of the spindle head - the electric motor 21. In parts 4, 12 and 17, the channels C, D and D, respectively, are made.

The device works as follows.

Using an electric motor 21, the drive pulley 8 by means of a belt

the gear unit transmits rotation to the driven pulley 6 and the driver 10, the base 9 of which is rigidly fixed on the hub of the driven pulley 6 and through

two fingers 11 are connected to a leash 10. The detail 15 is connected to the leash 10 by the left end, and is centrally located in the support 16, which by means of the spring-loaded cracker 17 ensures the exact basing of the part 15 in the radial direction. The axial direction of the workpiece 15 is carried out by its spring-loaded end face by means of a ball bearing.

13, installed in the center of the axis of rotation of the workpiece 15. Through channel B in support 4 and D in liner 12, coolant is supplied to the grinding zone of the inner surface of workpiece 15. Through industrial oil channel 17, industrial oil is supplied to the base surfaces of the part 15 15 in Prop 16.

Formula of invention

Device; I1 fixing parts when grinding, containing a table

and placed on the headstock, clamping elements, characterized in that, in order to improve the accuracy of the base of the parts, the headstock is made in the form

two buildings with fixedly supported in them supports, a leash with a base, a ball bearing and an insert, and the support of one of the buildings is made in the form of a sleeve, on the outer

the surface of the end of which the base is placed with the possibility of rotation with the carrier mounted on it with the possibility of axial movement, and the support of the other body is made in the form

sleeves with a radial groove, in which the clamping element, designed in the form of a T-shaped cracker and spring-loaded relative to the support, is mounted so that the ball bearing is placed between the driver and the one installed in the support and the spring-bearing. with respect to the leash liner.

nineteen,

75

L

78

76

Editor M.Tovtin

Compiled by A.Nikiforov

Tehred N.Glushchenko Proofreader E.Roshko

Order 2385 / 1I Circulation 786 Subscription

VNIIPI USSR State Committee

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

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

CPU r. 2

Claims (1)

Claim A device for fixing parts during grinding, containing a table 30 and placed on the headstock, clamping elements, characterized in that, in order to improve the accuracy of the base parts, the headstock is made in the form of 35 Two cases with fixed supports in them, a lead with a base, ball bearing and liner, and the bearing of one of the buildings is made in the form of a sleeve, on the outer 40 surface of the end of which is placed rotatably mounted base mounted on it with the possibility of axial movement of the cradle, and the support of the other case is made in the form of a 45 sleeve with a radial groove, in which the clamping element made in the form of a T-shaped cracker and spring-loaded relative to the support is mounted, with the ball bearing placed between the lead and installed in the support and . a loose leaf relative to the leash. Aa