SU1569084A1 - Arrangement for machining chamfers on end faces of parts with complex shape - Google Patents

Abstract

The invention is intended for metal cutting. The aim of the invention is to improve the performance of machining parts by providing convenient access to the cutting area and ease of setup of the device to size. The first faceplate 1 is designed to secure the workpiece 2. The second faceplate 3 is designed to mount the cutting element 4 and the conical fingers 5 on it, which interact with the conical surfaces of the sleeves 6, which are installed in the holes of the synchronizing faceplate 7. The synchronization faceplate is made in the form of a disk, in which the shaft 8 is mounted and secured. The other end of the shaft 8 through the opening 9 in the second faceplate is mounted in the first faceplate with the possibility of axial movement. The shaft 8 and the faceplates 1 are supported on the supports 10 and 11, respectively. To ensure the contact between the synchronizing plate and the second faceplate, a spring 12 is installed. To perform the cutting process, the second faceplate is moved in the radial direction. In this case, the tapered fingers 5 through the sleeves 6 shift the faceplate 3 in the longitudinal direction. When the cutting element is removed, it is additionally twisted relative to the hole of the workpiece, which leads to removal of an equidistant chamfer at the ends of the complex profiles in one pass of the cutting element. 3 il.

Description

The invention relates to the field of metal cutting.

The aim of the invention is to improve the performance of machining parts by providing convenient access to the cutting area, and ease of setup of the device to size.

FIG. 1 shows a device for chamfering at the ends of complex profiles, a general sectional view; in fig. 2 - the device is in working position; in fig. 3 - device when changing the workpiece.

The device for chamfering at the ends of the complex-shaped parts contains the first faceplate 1, designed to secure the workpiece 2. The second faceplate 3 is designed to mount the cutting element 4 and the conical fingers 5 on it. The latter are designed to interact with the conical surfaces of the sleeves 6, which are installed in the holes of the synchronizing plate 7, made in the form of a disk, in the central hole of which the shaft 8 is installed and fixed by one of its ends, and the other end of the shaft through the hole e 9 second chuck 3 is mounted in the first faceplate 1 with the possibility of axial movement. The shaft 8 and the faceplate 1 are supported on the supports 10 and 11, respectively. To ensure the contact between the synchronizing plate and the second faceplate, a spring 12 is installed. The end face of the cutting element 4 is at a distance equal to the axial dimension f of the chamfer removed from the end face of the workpiece 2.

The device for chamfering at the ends of the complex-shaped parts works as follows.

Prior to machining, the cutting element 4 is inserted into the hole of the workpiece 2 by an amount ("c. (Size of the chamfer to be removed). After installing the marked size, the cutting element 2 is fixed, the axes of all three faceplates coincide, and the conical fingers 5 and the sleeves 6 are in contact over the entire conical surface. The rotation with the angular velocity ω obtained from the actuator (not shown) by the first faceplate 1 is transmitted by the shaft 8 to the sleeves 6 on the synchronizing faceplate 7, and then through the conical fingers 5 of the second faceplate 3. Thus, all tr Faceplate rotated at the same angular velocity. In order to perform the cutting process,

move the second faceplate 3 in the radial direction of Zod along guides (not shown). At the same time, with an increase in the magnitude of the displacement g between

The axes of the faceplates 3 and 7, the conical fingers 5, which are in contact with the conical surfaces in the sleeves 6, displace the faceplate 3 in the longitudinal direction at a speed of 5VMZH. A similar movement is also carried out in the hole of the workpiece with a tool that swings from the hole to size 1. When the tool is withdrawn from the hole of the workpiece 2, an additional circular movement of the marked parts occurs,

which leads to the removal of an equidistant chamfer at the ends of complex profiles in a single tool pass.

Placing the faceplate 3 between faceplate 1 and the synchronizing faceplate 7, as well as the placement of conical pairs between these faceplates, make it possible to free up the treatment area and facilitate access to the working area, which makes it possible to conveniently change parts and increase processing performance. In addition, the presence of a telescopic transmission creates the possibility of axial movement of the cutting element with respect to the workpiece without disturbing the constant contact in the conical pairs, which improves the setting conditions when the axial size of the chamfer is changed.

Claims (1)

Invention Formula A device for chamfering at the ends of complex profiles, containing two faceplates mounted opposite one another with the possibility of rotation with equal angular velocity and relative displacement in the axial and radial directions, at the same time The Q faceplate is designed to fasten the workpiece, and the second faceplate is to mount the cutting element and the conical fingers on it, designed to interact with the conical surfaces of the sleeves, which 5 by the fact that, in order to increase processing performance, the device is equipped with a synchronizing faceplate made in the form of a disk with holes in which sleeves are installed, with a shaft, one end of which is fixed to the synchronizing faceplate and the other end through an opening made in the second faceplate mounted in the first faceplate with the possibility of axial movement. SpadJ b (and) FIG. 2