SU685474A1 - Apparatus for screwing-in threaded parts - Google Patents

Description

The invention relates to the field of general engineering and can be used when screwing threaded parts, for example, when assembling a handpiece with a lock of the front door of a car Lada,

A device for screwing in threaded parts is known, which includes a driven shaft with a coupling and a support for one of the parts I.

The purpose of the invention is to ensure that parts are screwed to a predetermined length while their mutually aligned angular orientation.

For this, the proposed device for screwing the threaded parts is provided with an additional shaft, having installed an IWB on a support with the possibility of axial overlap and dry the head under the threaded piece at one end, and at the other end the coupling half of the additional gear coupling, the second coupling half of which is fixed at the end of the driven shaft, on which has a cam, designed to act on a cage mounted on the main coupling half of the clutch, for example

coupling cam coupling high speed shaft.

FIG. 1 shows the device in the initial position, axial section; in fig. 2 - the same device at the end of the work; in fig. 3 - section A-D in FIG. 2 ..

In the housing I of the device on the bearing 2 mounted sleeve. 3 with a spring-loaded dog 4 fixed on it, holding the spring-loaded sleeve 5 from axial displacement with the driven half-coupling half mounted on it 6. The half-coupling 6 has a protrusion 7 which can fall into.

5 groove adjustment disk 8, mounted in the housing 1 with flange 9 and bolts 10 in the desired position. The driven gear coupling half 6 engages with the drive gear with that coupling half 11, which is mounted on the hollow shaft 12 of the drive for rotational movement. Inside the sleeve 5, the key 13 slides the driven shaft 14, which has the possibility of reciprocating movement from the drive of the axial movement of the shaft (not shown in the figures),

On the shaft 14 with the help of the lock nut 15 fixed conic 1; ulachok 16

0

Designed for unlocking the pawl 4 when the specified axial displacement of the shaft 14 is reached, and the single-tooth coupling half 17, which, when the shaft 14 is axially displaced, engages with the single-tooth coupling half 1b of the intermediate roller 19 carrying the head 20 to install one of the threaded products 21. The roller 19 returns in the initial position by the spring 22. Another threaded product 23 is secured by the clamp 24 in the fixed support 25.

The device works in the following way.

One of the threaded products 23, for example, a ha, is clamped in the oriented position in the fixed support 25 by the clamp 24, another product 21, for example, the tip, also in the oriented position of the HabBiHHTTCH mouth 20 of the intermediate roller 19. The driving coupling half 11 rotates constantly throughout device operation time.

In the initial position {see FIG. 1) the dog 4 holds the sleeve 5 in the depicted position, and the driven coupling half remains in the state of engagement with the rotating lead half coupling 11, Rotation from the sleeve 5 is transmitted to the sleeve 3 with the dog 4 and through the sliding key 13 to the shaft 14 When the shaft 14 moves to the right, it engages with one-half coupling half 17 with the single half coupling 1Y intermediate in face 19- and transmits rotation to it. Moving further, the shaft 14 moves to the right the roller 19 carrying the head 20 with the threaded product 21 installed in it. This threaded product 2 (tip) pushes against another threaded product 23 (tgu),. fastened by the clamp 24 in the fixed support 25, the screwing starts,

Upon further movement of the roller 14 to the right, caused by the axial movement of the screwed tip 21 along the threads of the rod 23, the tapered cam 16 pushes the pawl 4 from the sleeve 5, which under the action of the spring 27 and the bevelled teeth of the coupling half 6 and 11 WASTE 5IT slightly to the right until the projection 7 of the coupling half 6 is abut into disk 8. ULA 6 and 11 continue to be in the engaged state until the protrusion 7 of the driven half-coupling 6, the slide on the surface of the disk 8, becomes in a certain

angular position and misses the groove of the disk 8 (see Fig. 3). When this coupling half 6 is shifted to the right, disconnected from the leading coupling half 11, the shaft 14 stops in the position defined by the position of the groove of the disk B. The screwing is completed (see Fig. 2).

During the return stroke of the shaft 14, the intermediate roller 19 is returned to its original position by the spring 22, then the flange 28 presses the sleeve 5, moves it to the leftmost position, the dog 4 is snapped under the action of the spring 29, the half-pieces F and 11 interlock. The device is prepared for a new cycle.

Adjustment of the length (depth) of the turning. This is accomplished by moving the conical cam 16 fixed with the help of a lock nut 15 ija to the shaft.

14. Depending on the position, the cam-16 pushes the pawl 4 earlier or later, after which the knowledge of the coupling half 6, having turned to coincide its protrusion 7 with the groove of the disk 8, disengages from the previous coupling half 11.

The angular position of the part to be wrapped is determined by the position of the groove of the disk 8. The disk 8 can be fixed in the housing 1 by means of the flange 9 and the bolt 10 in the desired position.

Claims (1)

1. USSR author's certificate No. 482271, cl. B 23 R 19/06, 1974. If b 7 xyVVvy / o 7..VV / rf 6 -T