SU1440687A1 - Wrench for lathe chuck - Google Patents

Abstract

The invention relates to a hand tool. The purpose of the invention is to improve ease of operation. The key for the lathe chuck contains a rod 1 with a handle 4 at one end and a profile head 3 at the other. The end of the rod 1 with the head 3 is covered with the sleeve 5, spring-loaded with respect to the handle 4 and having diametrical grooves 7. The diametral grooves 7 of the sleeve 5 include the ends of the pin 9 fixed in the rod I. The key. mounted on the cartridge so that the profile head 3 is opposite the socket of the cartridge. Rotating the handle 4, rotate the rod 1, at the same time through one of the slots 7 observe the alignment of the profile of the head 3 with the socket of the cartridge. Then press the handle 4, while the sleeve 5 rests against the cartridge end, the rod 1 will move along the sleeve 5, compressing the spring 6 until the head 3 completely enters the socket of the cartridge. Rotate the rod 1 to secure or release the part and remove the key. 2 Il.

Description

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The invention relates to a hand tool and can be used in various industries in fastening parts in three and four cam chucks of lathes and dividing heads.

The purpose of the invention is to increase convenience in operation by increasing the view of the key head.

FIG. ) shows the key for the lathe chuck, longitudinal section; in fig. 2 is a view A of FIG. one.

The key for the lathe chuck contains a rod, 1 with a hole 2 perpendicular to its axis at one end and a profile head 3 at the other end, a handle 4 in the hole 2, covering the end of the rod 1 with a head 3, the sleeve 5, spring-loaded direction relative to the handle 4 by the spring 6. The sleeve 5 is made with diametrically through grooves 7. In the rod 1 near the head 3 an additional hole 8 is made, perpendicular to its axis, oriented relative to the edges of the profile head 3. In the additional hole and 8 a pin 9 is fastened, the ends of which protrude from the rod 1 and enter into the diametrical grooves 7 of the sleeve 5.

The key for the lathe chuck works as follows.

When securing or removing parts in the lathe chuck (not shown), the key is installed above the socket of the chuck and turning the handle 4 of the profile head 5

Cu 3 is aligned with the socket of the cartridge by visual observation through one of the slots 7, which is located in the field of view of the worker. After that, press the handle 4 towards the cartridge. In this case, the sleeve 5 rests against the cartridge end, the rod 1 moves along the sleeve 5, compresses the spring 6, and its profile head 3 enters the socket of the cartridge.

Rotating the rod 1 by the handle 4 produces the mixing or dilution of workers.

chuck jaws (not shown) until complete

fixing or releasing the part, and

take off the key.

If the worker for any reason left the key in the socket of the cartridge, then under the action of the spring 6, the rod 1 moves relative to the sleeve 5. At the same time, its head 3 leaves the socket of the cartridge and the key falls into the pan of the lathe.

Claims (2)

1. A key for a lathe chuck, comprising a rod with a handle at one end and a profile head at the other, and a sleeve around the end of the rod with a head, axially spring-loaded relative to the handle, characterized in the sleeve from the end face facing the head is diametrically Q located through grooves. 2. A key according to claim 1, characterized in that the grooves are oriented relative to the faces of the head.