SU1234052A1 - Mechanism for feeding and clamping bar stock - Google Patents

Description

 one

The invention relates to metalworking and can be used for feeding and clamping rods, for example, on automatic lathes and lathe turret machines.

The purpose of the invention is to increase the accuracy of fixing the rod and reduce the noise level by introducing supporting elements.

The drawing shows the feeder and clamping rod, a longitudinal section.

The bar feeding and clamping mechanism consists of a drive (not shown) connected by means of a bearing 1 to a supply pipe 2 rigidly connected to a feed collet 3, in contact with a rod 4 and located inside the pipe 5 of the clamp and the clamping cartridge 6, which interact with the spindle 7 At the opposite end of the supply pipe 2, the cartridge 8 feed with a nut 9 is fixed.

On the side of the feed cartridge 8, the feed tube 2 is connected to the guide part of the mechanism, including the front support 10, bushings 11 and 12, and direct the left tube 13 through telescopically interconnected sleeves 14-16. A bushing 14 of the smallest diameter is installed in the bushing 12 of the guide part, and a bushing 16 of the largest diameter is rigidly connected to the body of the feed cartridge B. In the sleeve 14 of the smallest diameter there is a cone 17 with supporting elec

Editor A, 0gar

Compiled by A. Gribkov

Tehred L.Oleynik Proofreader S.Shekmar

Order 2933/12 Circulation 1001 Subscription of the USSR State Committee VNShShK

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

Production and printing company, Uzhgorod, ul, Proektna, 4

copes made in the form of plates 18.

The mechanism works as follows.

After unclamping the clamping chuck 6, the drive informs the feed movement in the direction of the clamping chuck 6. Due to the adhesion force of the petals of the feed collet 3 and the working elements of the feed cartridge 8, the bar 4 is moved to the machining zone. When moving the supply pipe 2, the telescopically connected sleeves 14-16 provide the greatest distance between it and the guide part. After feeding, the clamping chuck 6 clamps the bar 4 and the machine cycle continues. When adjusting the latter, it is necessary to take into account that the set of bar 4 is carried out immediately after its clamping. When the bar 4 is assembled, the feed pipe 2 with the cartridge 8 is moved to the left, the telescopic sleeves 14-16, moving in the axial direction, reduce the distance between the guide part and the feed pipe 2. In the case of the supporting rods 4, the ends of the plates 18 are located in the hole of the nut 9 of the feed chuck 8, which provides greater rigidity of fixing and supporting the rod 4. In this state of the mechanism, the machine is processed.

For machining parts of different lengths during adjustment, the axial position of the supporting plates 18 is adjusted,

Claims (1)

BAR FEEDING AND CLAMPING MECHANISM, comprising a drive, a feed pipe, a feed collet, a chuck, a feed cartridge located in the feed pipe on the drive side, and a guide pipe, characterized in that, in order to increase the accuracy of the bar fixing, the feed mechanism is telescopically equipped related; between each other by bushings, a cone and supporting elements in the form of elastic plates mounted on the surface of the cone and located in the hole of the sleeve of the smallest diameter installed in the guide tube, while the sleeve of the largest diameter is located on the adjacent end of the housing of the feed cartridge.