SU1206056A1 - Composite machine tool - Google Patents

Description

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The invention relates to a machine tool industry, namely to the designs of aggregate machines.

The aim of the invention is to improve the quality of workpieces by eliminating thread damage when unloading from the basic devices with threaded bushings.

FIG. 1 shows a general view of the aggregate machine, side view; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. 2 in FIG. 4 shows a section B-B in FIG. 1, in the lower position of the quill; in FIG. 5 - the same, in the upper position of the quill; in fig. 6 is a view of FIG. five; in fig. 7 is a view of D in FIG. 5 (glass not shown).

The aggregate machine consists of a bed 1, a multi-position rotary table 2 with a position of 3 loads and a device 4 unloadings, a stand 5, a stand 6, a power table 7 with a spindle box 8, a fixture 9 with basic threaded bushings 10 in which the recesses 11 for installation of the workpiece 12, and the depth of the undercut is less than the height of the corresponding p, the narrowing ledge on the workpiece by one step. The unloading device is made in the form of a quill 13 with a counting mechanism 14. The quill 13 installed in the spindle box 8 contains a nut 15, the thread pitch of which is made equal to the pitch of the base external thread 16 on the parts 12. The pinol 13 is provided with a head 17 equipped with a washer 18 with a shaped notch 19 and a tooth 20, located mutually perpendicular. The washer 18 is secured in the groove 21 of the head 17 with the possibility of moving along it, for example, with screws. In the axial bore of the head 17, a collet pin 22 is installed. The quill 13 is provided with a cup 23 with a lid 24, which is spring-loaded relative to the head. A fixed stop 25 is mounted on the spindle box 8. The machine includes a feed tray 26 for unloading the workpieces.

The machine works as follows.

On the loading position 3 rotary multi-position table 2 ope

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The rator manually screws the workpiece 12 into the base threaded bushing 10 of the tool 9, i and due to the fact that the depth of the undercut

5 11 less than the length of the base of the threaded protrusion 16 by one step, the end of the flange of the part 12 for one revolution comes in contact with the base end of the threaded sleeve 10. Next, the operator turns on the machine. After rotation of the multi-position turntable 2 with the device 9, the power table 7 is quickly supplied with the spindle box 8 and the workpieces begin to work on parts 12, which are finally screwed down (tightened) in the threaded bushings 10. When the part is fed unloading device 4 when supplying quill 13 to part 12 washer 18, guided by the tooth 20 into the slot 21 of the head 17 and installed in it with the possibility of longitudinal movement, includes an engagement with a shaped notch 19 with a hexagon of the part 1 2. In this case, due to the fact that the guide tooth 20 and the shaped cut-out 19 of the washer 18 are made mutually perpendicular to 30, the washer 18 is floating in two planes. The collet pin 22 in this case enters the axial hole of the part 12, and the cup 23 through the flange 24 enters into contact with the flange of the part 12 (Fig. 4). With the start of the working feed of the power table 7, the rotation of the quill 13 begins in the direction of unscrewing the part 12, which is unscrewed from the threaded bushing 10 of the tool 9 and in the type that the quill 13 is also unscrewed from its own cam nut 15 the workpiece 12, the latter does not experience axial loads and, therefore, does not roll, but, held by the collet finger 22, is carried along with the copier pintle 13 up until the cup 23 rests against the stop 25. Then Mine-substituted molecular glass quill 13 through 23 krsh1ki 24 resets the failed component 12 to the inclined tray 26. Thus, there is an automatic unloading of the workpiece 12. After the retraction stroke occurs circuit section 7 with a tap quill 13

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, in the initial position. The initial and the final switches are turned by the end switches of the quill 13 of the counter mechanism 14.

FIG. 2

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2it IS

FIG.

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Editor A.Vorovich

Compiled by I.Shchiviev Tehred T.Tulik

Order 8614/14 Circulation E2b Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk Nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Fi.7

Corrector I. Muska

Claims (1)

Aggregate machine, comprising a bed, a multi-position rotary table, basic devices with threaded bushings, thread-cutting pins installed in working positions, and an unloading device, characterized in that, in order to improve the quality of the workpieces, the unloading device is made in the form of a pin installed coaxially with the base a device with the possibility of rotation and movement in a vertical plane with a step equal to the thread pitch on the workpiece.