RU1780926C - Comb cutter turning method and device - Google Patents

Abstract

The invention relates to the processing of materials by cutting and can be used in the processing of products packaged from plates, for example, electric motor rotors. The invention consists in the fact that during processing, the comb is initially moved along the surface to be machined in one direction until the first mid-rotor cutter moves in the direction of movement, and then the comb is retracted, additionally moved in the original direction and the treatment is completed by moving the comb in the opposite direction direction, 2 sec. and 2 z.p. f-ly, 3 ill.

Description

The invention relates to the processing of materials by cutting and can be used in the processing of products packaged from plates, for example, electric motor rotors.

A known method of processing a stepped shaft on multi-cutting turning semiautomatic devices.

The disadvantages of this method are: the difficulty of installing the cutters, so that their vertices are on one straight line parallel to the axis of the workpiece and the bundle plates are delaminated when the front exit, the direction of supply of the cutter from the processing.

A tool holder for several cutters is known, but it cannot be used for longitudinal turning of the rotor and requires a long time to reinstall the cutters.

The aim of the invention is to improve the quality of processing by eliminating the delamination of the plates when removing the allowance with a cutter comb, which moves the feed parallel to the shaft axis with the rotor package mounted on it in one direction until the first cutter in the feed direction reaches the point of delamination .

This point is spaced from the end toward which the first cutter moves by the amount of possible delamination. The stratification value I is determined in advance, in preparation for the production of engines. I f (t, s, b, d), where t is the depth of cut in mm, s is the feed, in mm / rev; b - sheet thickness, in mm; d is the outer diameter of the bag.

The comb is then retracted from the bag and accelerated in the direction indicated above until the first cutter passes over the end of the bag.

Then, the comb is returned to its previous depth and the treatment is completed by moving the comb in the opposite direction, at the working feed, until the first specified cutter returns to its original working position.

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Figure 1 shows a processing diagram of the proposed method, figure 2 - threaded comb; in Fig 3 is also a top view. The cutter comb consists of a housing 1, in the grooves 2 of which several cutters 3 are mounted, depending on the length of the rotor 4 being machined and on the required capacity, which are held in the housing 1 by a cover 5, in which there are bolts 6 for preliminary and final fixing of the cutters. For each cutter 3 in grooves 2 of the housing 1 are installed Pusher devices consisting of a housing 7, a plunger 8 and a spring 9 for pressing the cutters 3 to the folding template 10. To the template 10 are attached cheeks 11, mounted with their holes 12 on the axis 13 of the template, to the abutment is fixed in the cover 5 of the incisal comb.

To limit the movement of the template 10 to the desired constant height, the pins are fixed on the cover 5. Adjusting screws 15 are placed on the cheeks 11 of the template 10. The surface of the template 10, to which the cutters 3 are pressed and the surface opposite it, are made strictly parallel for the exact installation of the comb on cross slide 16 machine support.

The method of turning with a comb comb mounted on a cross slide 16 of a lathe support is implemented as follows

Several cutters 3, taking into account the length of the rotor 4 being machined, are installed in the housing (combs according to the folding template 10, which during installation are pressed to the template each with their plunger 9 under the action of the spring 9, the pushing devices, and then screw the screws 15 that squeeze the cheeks 11, and therefore and the template 10 so as to completely select the gap between the holes 12 in the cheeks 11 and the axis 13 of the template from the side of the vertices of the cutters 3 After that, the cutters 3 are fixed with bolts 6 and then, by folding the template 10 up, they are brought to the rotor 4 being machined, As a result, the cutters during the transverse feed cut into the rotor forming surface by an amount equal to the finishing allowance. In this case, the transverse slide 16 of the support with the cutting comb is pressed against the stop 17, mounted on the transverse guides of the machine support, Then the longitudinal feed and the support with the cutting comb are turned on. on the working feed it moves from right to left until the top of the first left incisor approaches point A, undershot on the left a portion of the surface of the rotor of length I. Moreover, each incisor 3 is turned It opens its own section with a large overlap of the adjacent section. After turning the sections, the transverse slide 16 of the caliper, moving away from the stop 17, are mixed so that the first cutter on the left moves along the path of ABV G outside

of the rotor 4 on the left, after which the transverse slide 16c with the tool holder is pressed again to the stop 17. The reverse longitudinal feed is turned on and the caliper with the cutter comb moves in the opposite direction, from left to right, forcing the first left cutter to grind the untreated section in the rotor 4. After performing this operation, the caliper with the incisal comb is returned to its original position.

Claims (1)

The claims 1 Method for turning with a comb comb, characterized in that. that, in order to improve the quality when processing the rotor package, the comb is initially moved along the surface to be machined in one direction until the first mid-rotor cutter moves in the direction of movement, then the comb is retracted, additionally moved to the initial direction until the specified cutter leaves the rotor and complete the processing by moving the comb in the opposite direction until the first movements of the cutter of the middle part of the rotor 2 Device for turning with a comb comb, comprising a housing with grooves for installing cutters, and a device for adjusting the value their departure, characterized in that, in order to increase productivity and processing quality, the adjustment device is made in the form of a U-shaped mounted on the housing with the possibility of rotation template, on the side strips of which are made radial grooves, designed to interact with the entered into the device retainer angular position of the template 3 Pop2 device, characterized in that the cutters are mounted in grooves with the possibility of elastic movement 4 Pop2 device, characterized in that it has 5 so that screws are installed on the side strips of the template to select the gap between the surface of the radius grooves and the retainer Figure 1 eleven FIG. 2 Fig.Z