SU1404208A1 - Arrangement for broaching external surfaces - Google Patents

Abstract

- The invention relates to the field of mechanical engineering, in particular to machining by pulling parts like a rod and a sleeve. The aim of the invention is to improve the quality of processing by providing greater stability and rigidity of the system of the pusher-tool head. In the device with a pusher 9 fixed on the base 8 coaxially with the tool head, a sleeve 11 is inserted with a window for loading workpieces 12. The sleeve 11 is installed with the possibility of axial movement and interaction with the pusher 9. And the holder can be placed in the cylinder 10, rigidly

Description

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mounted on the basis of coaxially sliding pusher. For fixing with a pusher, or secured in the housing in the holder after loading the pressure gauge 1 tool head, which is a cutter. 3 h, para. f-ly, pa moves relative to aerial.

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The invention relates to the field of mechanical engineering, in particular to the treatment by pulling parts such as a rod and a sleeve.

The purpose of the invention is to improve the quality of processing by increasing the rigidity of the system of the pusher - tool head, which eliminates the distortion of the part due to the elimination of the pusher end.

FIG. 1 shows a device, a longitudinal section, about 1 m placed on the base; in fig. 2 - the same, the holder is placed in the body of the tool head; FIG. 3 is a section A-A in FIG. one ; in fig. 4 shows a section BB in FIG. one; Fig. 5 is a schematic of the placement of the trimmer on the holder; FIG. 6 is a section b-B in FIG. five; in fig. 7 shows an arrangement from the secateurs on the holder; FIG. 8 shows a device with channels for supplying working medium in a cage; in fig „9 the same, with the channels for supplying the working medium c. tool head housing;: FIG. JO - the mechanism for returning the clip to the initial position; in fig. 1 - the same, another version.

The device contains a tool gilovka consisting of the body 1, in the bore of which are placed deforming teeth 3 pressed into the cage 2 in the form of rings. The working part on the deforming teeth x 3 is made on the inner surface in the form of two truncated cones facing each other, between which there is a cylindrical ribbon. The diameter of the ribbon is made with a decrease when not moving to each subsequent treat tooth in the direction of the slider 4 presses. In the case 1 of the tool head there is a radial cavity 1 with an inclined surface, as well as a thrower made in the form of a flat spring 5 or in the form of a finger 6 spring-loaded 7. On the base 8 of the device body coaxially with the tool head, the pusher 9e is fixed Concentric The cylinder 5 is fixed to the pusher 9 on the base 8, the inner surface of which is intended to guide the casing 11 placed on the pusher 9 with the window D for loading the blanks 12,

0 For orientation relative to each other of the tool head and the holder 11, a guide element 3 with a groove located in the body of the tool head 1 is provided;

 which corresponds to the protrusion made on the cage. In some cases, it is advisable to use the outer surface of the tool head body 1, which is surrounded by the bore surface of the cage 11, as a centering surface. To prevent rotation of the latter at its end, the pin 14 is fixed, under which hole e is made, elimination of turning the clip 1 1 is necessary in the case of automatic loading of blanks 12

To limit the axial displacement 30 of the cage 1I, a ring 15 is fixed on the cylinder 10 with protrusions under which longitudinal grooves are made on a part of the length of the cage 11. In the case of outdoor

35, the surfaces of the cage 11 are stepped; an annular stop 16 is fixed on the cylinder 10. When the casing P is placed in the cylinder 10 to return the cage c. initial position last can

40 to be podpraysenena spring 7 or the cavity W of the cylinder 10 is filled with a liquid or oily-air medium under pressure, and the cavity- W communicated by bending

45 rods with a cavity of 3 or And, respectively, additional cylinders 18

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or 19. A piston 21 spring-loaded 20 is placed in the auxiliary cylinder 18, and a piston 22 is spring-loaded in the auxiliary cylinder 19 ycTaHOBJjeH, the shaft of which is associated with a press slide (not shown). The cavity W of the cylinder 10 can be communicated with a closed cavity, for example, also in the form of a cylinder. In this case, only an oily-air medium can be used.

The yoke 11 can be placed in the bore of the case 1 of the tool head, while it is clamped with a screw 23 and secured against axial twisting with a screw 24. For supplying and discharging the workpieces 12 in the case 1, a cavity is made correspondingly to window D in the yoke 1 1.

For automatic feeding of the blanks 12, a feeder 25 is provided, made in the form of lower and upper trays interconnected, with the lower tray placed so that its cavity is accommodated with the cavity both of us in its initial position. The shut-off valve 26 is installed in the guide pads 27 and is spring-loaded either with respect to the piston 10 by the tension spring 28 or by the compression spring 29 relative to the adjustable stop 30 fixed to the pad 27. The inclined surface is formed on the compartment body 26. When the yoke 11 is placed in the cylinder 10 on the dvt, associated with

slider 4 of the press, or in the crawler itself, one or two racks 31 are fixed, on which inclined surfaces are also designed, designed to interact with the inclined surface of the trimmer 26. When manually loading the blanks 12, a cutter is provided in the device. In the case of placing the sleeve 11 in the cylinder 10, the cutter is made in the form of a sleeve 32 placed on the sleeve 11, in which an arc groove is made to fix it, and accordingly a screw 33 is screwed into the sleeve 11.

In addition, a slot is made in the hub dp of fixing the parts in the cavity of the yoke 11 and the surface K, which forms parallel to the longitudinal axis of the yoke.

In the case of placing the holder 1I in the case 1 of the tool head, the cutter is made in the form of the sleeve 34 enclosing the case

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the surface of which is made conical to interact with the part, and in the body of the sleeve there is a retainer consisting of a ball 35 and a spring 36 and interacting with the 1st slot with a groove formed on the housing 1. For convenience of transporting the blanks 12 into the cavity of the yoke, a guide 37 is fixed on the housing 1 For the conditions of pulling, neither of the parts after heat treatment, when the scale should be removed, or in order to ensure a higher accuracy of the shape of the parts before the deforming treatment, the stretch is provided with a stripping sheet located at its end. slaughter 38. If the latter is made of cemented carbide, then it is recommended to press it into the holder 39, fastened with a clamp 40. To remove the stripping or cutting products, a supply of fluid, air or compressed mixture is provided under pressure. For this purpose, channels 41 are formed in the obon 11 and a check valve 42 is installed. The supply of this medium can also be provided via channels 43 made in the body of the body 1 and on the surface of the casing 11.

The device works as follows.

In the initial position, the window D of the holder 1 is aligned with the lower tray of the feeder 25, from which, when the cutter 26 is moved, the workpiece 12 is fed into the cavity of the holder 11. The slider 4 is operated, while the holder 11 also moves down relative to the pusher 9 or together with tool head, or under its influence. A directional pusher 9 pushes the workpiece 12 through the deforming teeth 3. The workpiece 12 is machined.

5, under the influence of either the housing 1 or the pillars 31, the cutter 26 is moved to the right. From the upper tray of the feeder 26, the blank 12 enters the lower tray. The processed part falls into the cavity G of the tool head, from where it is dropped either by a flat rod 5 or by a spring-loaded finger 6 and extends beyond the limits of the tool head. The slider 4 carries out the reverse stroke, in which the holder 11 occupies the initial position. The cycle of operation is repeated.

When manually loading blanks FOR | eliminating the fallout of blanks 12

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the cutters are used either in the form of a sleeve 32 by turning it about an axis, or in the form of a sleeve 34 by lowering it down.

Claims (1)

Claims 1. A device for pulling outer surfaces comprising a base movement, the cylinder being provided with a mechanism for returning the sleeve to its original position. A toolhead mounted for axial movement of a tool head, mounted on the base of the housing coaxially to the tool head, a pusher, characterized in that, in order to improve the quality of processing, the device is provided with a sleeve with a window for loading workpieces installed in it 3, Device pop, 1, characterized in that the clip is secured in the body of the tool head. 4, The device according to claim,, O tl and itchy the fact that the device The coaxially coaxially instrumental head-20 is provided with a cutter placed on the keeper with the possibility of axial movement of the holder and intended for the intersection and interaction with the pusher of the window for loading the blanks. 2, The device according to claim 1, characterized in that the holder is placed in the cylinder inserted into the device, rigidly fixed on the base of the coaxially pusher, while on the holder there is a protrusion for centering relative to the tool head and axially its stop 3, Device pop, 1, characterized in that the clip is secured in the body of the tool head. 4, The device according to claim,, O tl and itchy the fact that the device Z5 FIG J eleven FIG. Thebes. five S2 ; / . 33 38 ifS FIG. eight J .x ; B 2 S Fie.9