SU975304A1 - Apparatus for assembling threaded joints - Google Patents

Description

(54) DEVICE FOR LATTLE THREADED CONNECTIONS

The invention relates to a machine tool industry, namely to devices for assembling threaded connections, and may find application in various industries.

A device for assembling threaded joints is known, comprising a drive mounted on a frame and a housing with a spindle installed therein, a spindle drive mechanism, a gear drive, a power cylinder and a safety coupling 11.

The disadvantage of the known device is low assembly performance. The invention of the invention is an increase in productivity.

I The goal is achieved by the fact that the device is equipped with a glass pivotally mounted on the frame and a spring-loaded lever located in it, the free end of which is kinematically connected with the moving coupling half of the safety coupling and with the spindle engaging mechanism. .

Moreover, the switching mechanism of the spindle is made in the form of a rocker mechanism, kinematically connected with the power cylinder.

The drawing shows a kinematic diagram of the device.

The device consists of a bed 1 on which a drive 2, a housing 3 and a hinged cylinder 4 are mounted. In the housing 3 shafts 5 and b are mounted, kinematically connected by a safety coupling 7 consisting of a half coupling 8 and movably mounted coupling half on shaft b 9. Rotation from drive 2 through coupling 7, coupling half 8 and 9, gear 10 mounted on shaft 6 is transferred to wheel 11. Through wheel 11, shaft 12 passes freely without rotation rod 13, - and on the other half mounted half 14 and engageable with a guide

20 spindle 15, the upper end of which is made in the form of the coupling half 16.

The rod 13 is rigidly connected to the piston 17. the force cylinder 18. The piston 17 is spring-loaded relative to the housing

25 3 with a spring 19. The shaft 12 rests on the bottom end of a spring 20 mounted inside the spindle 15, the latter, in turn, rests on the spring 21. With the rod 13, the lever 22 moving inside is pivotally connected

pivotally mounted sleeve 23, and with the lever 22, a connecting rod 24 is pivotally connected, which is also pivotally connected to a pusher 25 having axial movement “

The glass 4 contains a lever 26 pivotally connected to the coupling half 9 and resting on the spring 27, which rests on the screw 28 screwed into the glass 4. The lever 26 rests on the pneumoswitch 29 in the extreme left position of the coupling half.

At the bottom of the TQpue spindle 15, replaceable key 30 is repaired.

The device works as follows.

The rotation from the actuator 2 through the clutch 7, the half coupling 8 and 9, which are engaged, vgsh 6, gear 10 and the wheel 11 perb is given to the shaft 12. When air is fed into the upper cavity of the power cylinder and 18 piston 17 shaft 12, which, compressing the spring 20, through the spindle 15 compresses the spring 21. The spindle 15 begins to fall, at the same time, the coupling half 14 converges with the coupling half 16 ,. and when the key 30 is in contact with the head of a screw or bolt (not shown), coupling of coupling halves 14 and 16 occurs. Screwing of the threaded joint occurs. When the torque limit is reached, the half-coupling 9 begins to move to the left, moving the lever 26 with itself, the cup 4 turns, and the spring 27 is compressed:

The greatest compression of the spring 27 occurs when the vertical position of the glass. 4. Upon further rotation of the bowl 4, the spring 27 begins to open and the coupling half 9 is disconnected from the coupling half 8, the lever 26 acts on the pneumatic switch 29, which connects the upper cavity of the power cylinder 18 to the atmosphere. The spindle 15 is raised, the coupling halves 14 and 16 are opened, the lever

22 and the crank 24 shift the pusher

25, to the right. The pusher 25 acts

on lever 26, returning glass 4

to the starting position. In turn

lever 26, releasing the pneumatic switch, gives the command to repeat the cycle.

The adjustment of the limiting torque is achieved by pressing the spring 27 with the screw 28.

The use of the proposed device for assembling threaded connections will improve the performance of the assembly process due to the mechanization of the assembly and ease of changeover of the device for assembling various types of threads; bovy connections.

Claims (2)

Invention Formula li A device for assembling threaded connections, comprising an actuator mounted on a frame and a housing with spindle mounted therein, 5 with a spindle engaging mechanism, a gear, a power cylinder and a safety coupling, characterized in that, in order to increase productivity, Q it is equipped with a glass pivotally mounted on the frame and a spring-loaded lever located in it, the free end of which is kinematically connected with the movable coupling half of the safety coupling with the spindle engaging mechanism. 2. The device according to claim 1, characterized in that the mechanism of the spindle is made in the form of a rocker mechanism, kinematically  associated with the power cylinder. Sources of information taken into account during the examination 5 1. Sherman V.L. et al. Mechanization of assembly work in mechanical engineering, Mashgiz, 1963, p. 184, FIG. 73. / 7. fff 23 22 Vv /