SU831553A1 - Apparatus for trimming cylindrical inner surface of articles - Google Patents

Description

(54) DEVICE FOR INSIDE CLEANING

CYLINDRICAL SURFACE

PRODUCTS

4 - the same, the failure of the copier and the shoe into the hole; FIG. 5 shows the exit of the copier from the opening with the switching of the air distributor to the supply of the working head; na fig.6 - section bb in figure 1; on .fig.7 - node 1 in figure 1; Fig. 8 is a view of view B in Fig.2. A device for stripping the inner cylindrical surface of articles with holes, for example, a cylindrical body 1 mounted on drive roller carriages 2, consists of a carriage 3 on which a movable cantilever bar 4 is mounted, carrying a working head 5 (FIG. 1). The cantilever boom 4 is mounted on the support rollers 6 with the ability to move through them by means of a -wheel gear 7 and a reversing drive 8 (Fig. 6). The working head has a spin. a practical unit 9 with an abrasive wheel of g 10, which can be rotated by the electric motor 11 through a V-belt transmission 1.2 (Fig. 7).

g- .

Radial-vertical movement and elastic preload of the abrasive wheel to the machined surface is carried out from the pneumatic actuator 13, the body of which is placed in the sleeve 14 fixed to the end of the cantilever rod 4. At the end of the rod 15 of the pneumatic cylinder, a spindle unit 9 of the head with a copy-follower 16 is mounted. - the following mechanism is placed in the housing 17 of the spindle assembly, inside of which a shoe 19 is spring-loaded via a spring 18, on which an air distributor 21 is mounted on a bracket-support 20 etc. and this in the shoe 19 is fixed the rod 22, at one end of which a copier 24 is spring-loaded with the help of springs 23, and on the other is a cam 25 engaging with the air distributor 21 (FIG. 3).

The device works as follows.

The workpiece 1 is mounted on the drive rollers 2, the cart 3 is rolled into the product and the cantilever bar 4 is inserted into it (Fig. 1). The rotational drive of the product is turned on at the roller bearings, then the rotational motor 11 of the abrasive wheel 10, air is supplied to the pneumatic cylinder 13, as a result, the working head 5 is resiliently pressed to the treated surface and the actuator 8 is driven by the longitudinal movement of the cantilever rod 4 (Fig. 2). The cleaning is carried out until the copier 24 falls into the hole of the product 1 (Fig. 3), the cam 25 switches the air distributor 21 to the outlet, pneumatic cylinder 13 of the working head 5, and after the pneumatic system triggers it hangs over the inner surface

products. Moreover, the operating time of the pneumatic system t is equal to the time tj of the abrasive wheel 10 of the path Sf. This way the abrasive disc protects the surface. from the very beginning,.

The shoe 19 and the copier 24 under the action of the springs 18 and 23 clamp the lowest position. After passing the hole in the product, the stock copier 24 touches the edge of the hole and begins to move upwards, switching the cam 25 to the distributor 21. . the preload of the working head 5 by the pneumatic cylinder 13. And the response time of the pneumatic system t is equal to the time tj of the abrasive wheel 10 by S (Fig. 4). The grinding wheel 10 touches the surface to be machined immediately behind the hole.

Thus, the working head would skip through the holes in the workpiece and continue to protect the product without stopping and re-adjusting the device.

The reduction in the diameter of the abrasive disc 19 due to wear is compensated for by the fact that the air distributor 21 is mounted on the support bracket 20 rigidly connected to the spring-loaded shoe 19. And as the abrasive disc diameter decreases and decreases, the whole system moves upwards.

Thus, the device octopus is cleaning and grinding the inner cylindrical surface of products with openings.

Claims (1)

1. USSR author's certificate in application number 2784712, cl. B 23 C 3/12, 1979. “. /. // and / J as.5 FIG. 6 sixteen .3 ten Fi.7. View 8 YU