SU1214336A1 - Device for fixing work - Google Patents

Description

one

The invention relates to metalworking and can be used to base and secure the products to be processed along a cylindrical surface.

The purpose of the invention} is to improve the accuracy of fixing by increasing the nodepxHocTH base.

FIG. 1 shows a device, a general VIEW} in FIG. 2, a section A-A of FIG. one; in fig. 3 - the lobe of the clamping element node T in FIG. 1J in FIG. 4 - device with a mechanized drive, general view; in fig. 5 - clamp the parts on the outer surface.

On the cylindrical body 1, made with steps 2 and 3 and center holes 4, is mounted with the possibility of longitudinal movement of the clamping element 5, made in the form of a sleeve with its inclined elastic elements 6 and 7 bent at both ends, and the pressing sleeve 8. Both The sleeves 5. and 8 are provided with fixed turn stops in the form of screws 9, the ends of which are bounded by the side walls of the groove 10, made along the body 1.

Elastic petals 6 and 7 outside and inside are bounded by corresponding cylindrical surfaces 11 and 12, common to petals 6 and 7 and bushings 5. Radial grooves 13, dividing segments 14 each of petals 6 and 7, are made along sleeve 5 to the same depth and are evenly spaced around the circumference, and the petals 6 and 7 are inclined from the corresponding end of the sleeve 5.

Each of the petals 6 and 7 is limited to common pairs of cylindrical and tapered surfaces: an internal cylindrical surface 12 with a conical surface 15 and a cylindrical surface with an internal conical surface 17.

Both pairs of surfaces have smooth junctions 19 and 18. In addition, all the petals 6 and 7 are bounded by the common surface of the smooth transition 20, in this particular example of a toroidal transition, with the corresponding end of the sleeve 5..

A drive unit is also mounted on the cylindrical housing 1. For this case 1 is made with thread 12143362

the first part 21, on which, with the support on the sleeve 8, a nut 22 is mounted. The case 1 has REAPS-23 fixed in it,

ten

(five

20

25

thirty

35

40

45

50

55

The workpiece 24 with the base hole is put on the device until it stops at its limiting step 3. By screwing the nut 22, the sleeve 8 is moved along the body 1, which acts on the elastic petal 7, moving it with the sleeve 5 and the elastic petal 6 to

stop 1B stage 2 of housing 1. I

With further tightening and tightening of the nut 22, the segments 14 of the petals 6 and 7 are evenly elastically deformed, having unbendable ends to the ends of sleeve 5 and to the periphery. At the same time, at first, the deformation of the segments 14 on the whole of the spine only bend back from the cylindrical surface of the housing 1 that mates with them, and at the end of the deformation after contact with the walls of the base hole of the product 24 at its base, bend their sections 11 of the cylindrical surface 12 to the housing 1 and fix product 24.

As the links of the centering unit are displaced and fixed along body 1 and entering into contact with product 24 of all segments 14 of both elastic petals 6 and 7 with support in stage 2 of body 1, petals 7 with their ends, i.e. surface 115 slightly slides along the product opening, facilitating its pressing against stage 3 of housing 1. At the same time, the device itself precisely bases and -i secures the product 24 along the walls of its opening and end.

For subsequent processing, the device 24 is installed together with it in the centers of the machine (not shown).

After processing, the device together with the product 24 is removed, the nut 14 with water releases the segments 14 of the lobes 6 and 7, and the product 24 is removed.

The stepped body 1 is made with a flange 25 having a juice 26 fitting for 26 and with a central hole in which a ha is mounted with a sleeve into the sleeve 8. 27 of the drive unit connected to the rod of the rotating pneumatic cylinder (not shown).

The workpiece 24 with the base hole is put on the device until it stops at its limiting step 3. By screwing the nut 22, the sleeve 8 is moved along the body 1, which acts on the elastic petal 7, moving it with the sleeve 5 and the elastic petal 6 to

stop 1B stage 2 of housing 1. I

With further tightening and tightening of the nut 22, the segments 14 of the petals 6 and 7 are evenly elastically deformed, having unbendable ends to the ends of sleeve 5 and to the periphery. At the same time, at first, the deformation of the segments 14 on the whole of the spine only bend back from the cylindrical surface of the housing 1 that mates with them, and at the end of the deformation after contact with the walls of the base hole of the product 24 at its base, bend their sections 11 of the cylindrical surface 12 to the housing 1 and fix product 24.

As the links of the centering unit are displaced and fixed along body 1 and entering into contact with product 24 of all segments 14 of both elastic petals 6 and 7 with support in stage 2 of body 1, petals 7 with their ends, i.e. surface 115 slightly slides along the product opening, facilitating its pressing against stage 3 of housing 1. At the same time, the device itself precisely bases and -i secures the product 24 along the walls of its opening and end.

For subsequent processing, the device 24 is installed together with it in the centers of the machine (not shown).

After processing, the device together with the product 24 is removed, the drive nut 22 releases the segments 14 of the petals 6 and 7 and removes the product 24.

The stepped body 1 is made with a flange 25 having a juice 26, fitting with a central hole in which a ha is installed with a support in the sleeve 8. 27 of the drive unit connected to the rod of the rotating pneumatic cylinder (not shown).

The device is mounted 26 and fixed with a flange 25 on the machine spindle (not shown, after putting the product 24 on it until it stops at step 3 of body 1 and moving the drive rod 27 to the left, the latter through the end of the pressing sleeve 8 shifts similarly made in the form of a sleeve 5 with a petal

14336

Cams 6 and 7 at the ends of the centering-expansion link with the product 24. In this case, the product 24 is centered and fixed to the device.

 The proposed device allows precise centering and fastening of products with a blind or stepped hole.

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Fi..5 Editor A.Dolinich

Compiled by L. Yarho

Tehred A Ksh emey Corrector E. Roshko

827/18 Circulation 1000 Subscription VNIIGSh USSR State Committee

for inventions and discoveries 113035, Moscow, F-33, Raushsk nab, d, 4/5

Filial PPP Patent, g, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR ATTACHING PARTS, on the stepped case of which there is a clamping element and a pressure sleeve fixed from rotation, characterized in that, in order to increase the accuracy of fastening, the clamping element is made in the form of a sleeve with its inclined elastic petals bent at both ends, smoothly connected to it cylindrical generators. FIG. 4 1214336 2 with a howling part 21, on which a nut 22 is mounted with support on the sleeve 8. The housing 1 has a leash-23 fixed therein,