RU113986U1 - PNEUMATIC SYSTEM FOR AUTOMATIC ASSEMBLY OF THREADED CONNECTIONS - Google Patents

Abstract

Pneumatic vortex device for automatic assembly of threaded connections, which is a cylindrical vortex chamber with tangentially evenly spaced nozzles connected to a compressed air power source, characterized in that two extension tubes are coaxially installed in the chamber on both sides, one of them is made of non-magnetic material and a solenoid coil is mounted on it, and the nozzles and the power source are connected to each other by an internal annular channel.

Description

The utility model relates to automation of assembly work in mechanical engineering, in particular, automation of assembly of threaded joints.

There are various devices for the automatic assembly of threaded joints with preliminary orientation of the mating parts by forcing one part on another during assembly, non-directional search and directional search methods. (Bedrin V.M., Bedrina A.V. Overview of methods and devices for automatic orientation of parts during assembly // Assembly in mechanical engineering, instrument making. 2000, No. 2). Most of these devices are complex, time consuming and unreliable.

Closest to the described utility model is a device for automatic assembly of a threaded connection, which contains a cylindrical vortex chamber with nozzles uniformly spaced and directed tangentially to the chamber’s inner surface and connected to a compressed air power source (RU 357057, Cl. V23P 19/04, publ. . 10.31.1972).

This device provides mutual orientation and assembly of threaded connections of parts on one stationary assembly position, while one of the parts is fixedly mounted, and the second is fed to the assembly position by an additional device (feeder).

However, the need for a stationary feeder, binding to a specific assembly place, a significant number of communication lines, and insufficient process flexibility do not allow the use of this device for efficient automatic assembly of threaded joints.

The objective of the utility model is to develop a device for the automatic assembly of threaded joints, which ensures the efficiency of the assembly process and the possibility of using an industrial robot as a tool.

As such a device, it is proposed to use a pneumatic vortex device for automatic assembly of threaded connections, which is a cylindrical vortex chamber with tangentially evenly spaced nozzles connected to a compressed air power supply, equipped with two coaxially mounted extension tubes, one of which is made of non-magnetic material and mounted on it the solenoid coil, and the nozzle and power source are interconnected by an internal annular channel. One of the elongated tubes made of non-magnetic material, together with a solenoid coil mounted on it, makes it possible to use this device as a tool for an industrial robot manipulator, and the inner annular channel together with extension tubes of optimal length, due to pressure redistribution inside the vortex chamber, creates an intense vortex flow, effectively implementing the assembly process of parts. The claimed combination of features is necessary and sufficient to solve the problem.

Figure 1 shows a pneumatic vortex device for automatic assembly of threaded connections, General view; figure 2 is a section aa in figure 1; figure 3 is a section bB in figure 2; figure 4 is a three-dimensional image (axonometry) with a notch along BB in figure 2.

The pneumatic vortex device for automatic assembly of threaded connections includes a housing 1, a cylindrical vortex chamber 2, with extension tubes 3 and 4 fixedly mounted on it, a solenoid coil 5. The vortex chamber is equipped with several (for example, two) tangential uniformly located nozzles 6 and 7, air to which is supplied from the supply opening 8 through the inner annular channel 9.

The proposed device can be used both in a stationary state and as a working body of an industrial robot. In a stationary state, one of the assembled parts (for example, a stud) is fed from the feeder into the pneumatic vortex device for automatic assembly of threaded connections, while the second mating part (for example, a nut) is aligned. When power is supplied to the compressed air, the first part is oriented, baited and assembled with another fixedly located mating part. Then the assembled assembly is selected and the next pair of parts comes in its place.

As part of the robotic complex, the operation of the air-vortex device is as follows. The device is installed on the final link of the manipulator and brought to the selection position of the store of mating parts (for example, studs), then it is oriented along the axis of the selected part, captures this part with the help of a solenoid coil and moves by the robot to the assembly position. When approaching the assembly position, the part is oriented by the robot along the axis of the hole of the fixedly mounted mating part, brought to it, then the air supply to the vortex chamber is turned on and distributed through the annular channel to the nozzles. After that, the power of the solenoid coil is turned off and the part under the influence of the vortex air flow comes into a complex rotational movement. In this case, the free end of the part describes a converging spiral path, as a result of which the part is oriented with respect to the axis of the threaded hole and is baited.

The technical result of the utility model is to increase the efficiency of the assembly process of parts, as well as the possibility of its use as a tool for the manipulator of an industrial robot.

Claims (1)

A pneumatic vortex device for automatic assembly of threaded joints, which is a cylindrical vortex chamber with tangentially evenly spaced nozzles connected to a compressed air power source, characterized in that two extension tubes are coaxially mounted on both sides of the chamber, one of which is made of non-magnetic material and a solenoid coil is mounted on it, and the nozzles and the power source are interconnected by an internal annular channel.