SU1161284A1 - Multistation vertical broaching machine - Google Patents

Description

The invention relates to mechanical engineering, in particular to a vertically 'broaching machines for the treatment of external surfaces.

The purpose of the invention is to expand the technological capabilities of the machine by implementing its readjustment for machining parts of various sizes and with a different number of grooves as a result of moving the carriages along the arc guides and turning the elements of angular orientation relative to its axis, as well as radial movement of the broaches . 15

FIG. 1 schematically shows a machine, a general view; FIG. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1 ·, in FIG. 4 shows a section B-B in FIG. one; in fig. 5 - view G 20

in fig. four; in fig. 6 is a section d-d in FIG. 5, in FIG. 7 is a view of E in FIG.

The multiply positioned yertikalno-pro-heavy machine contains a base 1, on which a table 2 is installed with the possibility of reciprocating movement, carrying a circular dividing rotary table 3, On the base 1, two vertical columns 4 are fixed, on which the shop is fixed 5 and mounted with the ability to move the caliper 6. The latter is moved by means of a hydraulic cylinder 7 located under the base 1. The rod 8 of the hydraulic cylinder 7 35 is connected to a support 6, in which are placed on the arc guides 9 (in yes nom'variante) five carriages 10 and broach. Arc guides 9 are in the form of "dovetail". The carriage-40 ki 10 are fixed on the arc guides 9 by means of a screw 12. The carriages 10 (except the central one) have a cylindrical bore in which the element of angular orientation 13 is rotatably arranged in the form of a sleeve with a longitudinal lip and is intended to be fixed in it pulls 11. Moreover, as the distance from the central carriage 30, located along the axis of symmetry of the machine, the diameter of the elements 13 of the angular orientation increases. The element 13 of the angular orientation is fixed in the carriage by means of a screw 14, placed in the groove 15. The magazine 5 also has the carriage 16, structurally you-. similar to the carriages 10.

On the carriage 16 is fixed scale 17 ,. and on the element 18, the angular orientation is a nonius, and on carriages 10 calipers of 6 scales and a nonius.

For clamping the broaches in the elements 13 and 18 of the angular orientation and the central carriages 10 and 16 are placed means of fastening the broaches 11, made in the form of clamping cams 19, electromagnetic coils 20 and return springs 21.

The carriages 10 are significantly longer than the carriages 16, so that the working part of the broaches 11 is entirely located in the angular orientation elements 13, and in the angular orientation elements 18 of the carriages 16 of the store 5, the rear fixing part of the broaches 11 is located, which serves only to hang it in the off position position

For mounting the processed disk 22 on the pivoting rotary table 3, a nut 23 and (quick-change washer 24 on the mandrel 25) are provided. The separating rotary table 3 is provided with a stepper motor drive (not shown), which can be easily reconfigured to handle the disks 22 with different number of slots.

The movement of the table 2 along the guide rails 26 is carried out by means of a lead screw 27 from a drive (not shown).

The machine works as follows.

The processed disk 22 is mounted on a circular pivoting rotary table 3 and secured by means of a quick-change washer 24 and a nut 23.

In this case, all machine components are in the initial position: table 2 in the extreme forward position, caliper 6 in the extreme upper position, broach 11 fixed by cams in carriages 16 of magazine 5 and freely positioned in slots of carriages 10 caliper 6 without power and kinematic connection with carriages.

Pressing the "Start" button closes the contact of the relay of the electromagnetic coils 20 of the clamping cams 19 of the carriage 10 of the caliper 6 of the first broach 11, which is clamped by the cams 19 of the caliper 6. After that, the first broach 11 is released from the magazine 5. At this, the cams 19 of the caliper 6 must close earlier than the cams of the store open 5,

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otherwise, broach.11 will fall under its own weight. After pressing the cams 19 of the magazine 5, a signal is given to turn on the hydraulic cylinder 7. The working stroke of the support 6 begins. 5

At the end of the working stroke of the slide 6, a signal is sent to the table 2 drive and simultaneously to a pulse counter (not shown). Table 2 is retracted from the working area, retraction occurs along the 10 axis of the middle draw 11. In the final position of the table 2, the command is given to rotate the dividing table 3 by one step, after which the support 6 returns to its original position. When 15 reverse course of the caliper 6, a signal is sent to the drive of the table 2, which begins to move to the working position. The coordinates of the table 2 in the working position are determined by an adjustable 20 stop with a limit switch (not shown). When this limit switch is triggered, the first. Contact of the machine operation ends. A signal is sent to the means of fastening the second 25 broach 11 of the carriage 10 of the caliper 6. The second stroke begins, which is completely similar to the first stroke. Then the third beat is performed, etc. After the fifth measure in this zone

Variant ^ (in the general case and the ith cycle) all pulls 11 entered into operation.

This ensures the sequential commissioning of the broaches 11 (from the first to the last) with ³⁵ further parallel work of all the broaches.

The machine can be adjusted for processing disks of various diameters with different numbers of slots.

In the case of processing the disk 22 of the maximum possible diameter, the axis of the circular separating rotary table 3 in the working position coincides with the axis of the arc rail 9. The carriages 10 with the broaches 11 are located on the arc rail 9 in accordance with the groove pitch on the disc 22. The elements 13 of the angular orientation of the carriages are arranged so that the axes of symmetry of their grooves, in which the draw bars 11 are attached, coincide with the radii of the disk 22.

To readjust the machine to handle disks of the same diameter with a different number of grooves, it is enough to move the carriage 10 along the arc guides 9 of the support 6 in accordance with the changed step. At the same time, the minimum possible step is limited by the overall dimensions of the carriages 10. It must be greater than twice the width of the widest extreme carriage. The maximum step value is determined from the conditions of the free table branch 2. For this, the product of the angular step and the number of pulls should be less than 90 °, which is almost always performed on commonly used turbine disks.

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During machine readjustment for machining a disk of smaller diameter, the circular pivoting rotary table 3 is shifted towards the arc guide 9 so that in the working position its axis is located between the center of the arc guide and the arc itself. At the same time, the axis of symmetry of the slots in the elements 13 of the angular orientation of the carriages 10 should deviate from the radial position, and the carriages themselves must be shifted along the arc guide closer to the axis of symmetry of the middle carriage.

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Claims (3)

1. MULTI-POSITIONAL VERTICAL-EXTENSION MACHINE containing a frame, on the stand of which a caliper carrying a pulling is placed with the possibility of moving, and a dividing table installed with the possibility of reciprocating movement, characterized in that installed with the possibility of moving along the arc guide carriages made in the caliper with elements of angular orientation of the broaches made in the form of sleeves with longitudinal flats and mounted with the possibility of rotation in the carriages * and the elements of angular orientation are intended to fix the broaches in them. 2. Machine according to claim. ^ Characterized in that the fastening means in an angular orientation broaches elements are designed as sub _l spring cams mounted 3 movable by means of an inserted electromagnetic drive. 3. A machine tool according to claim. ^ Characterized in that the carriages are provided with means of counting the angle of rotation of the element of angular orientation and a set of shims for radial displacement of the broaches. B4_ „„ 1161284 > 1 1161284 2