RU1835321C - Device for applying coating - Google Patents

Abstract

The invention relates to coating and can be used in plasma spray coating. The purpose of the invention is to increase operational reliability while improving working conditions. For this, each support of the drive is made in the form of a flexible membrane. In this case, the gears of the half-coupling of the shaft of each drive are made in the form of an outer cone, and the spindle is in the form of an inner cone. 3 ill.

Description

The invention relates to the field of coating and can be used, for example, in plasma spray coating.

The purpose of the invention is to increase reliability.

Figure 1 is a General view of the installation, top view; figure 2 is a section aa in figure 1 (coupling halves uncoupled); in Fig. 3 - the same (coupling half coupled).

The coating apparatus comprises (Fig. 1) a chamber 1, an abrasive blasting apparatus 2, a plasma coating apparatus 3, a reflow coating apparatus 4, and a rotary apparatus 5 connected to a step turning actuator 6 through an angle a. Spindles 7 are mounted on the rotary device 5 to rotate the parts. On the positions of technological operations are stationary installed: drive 8 (position II - abrasive blasting), drive 9 (position III - plasma spraying) and drive 10 (position IV reflow coating), equipped with drive shafts 11 (2, 3 ) The spindles 7 and the drive shafts 11 are located on circles with different radii relative to the axis of the rotary device 5, the central angle между between the shafts 11 of the drives 8, 9, 10 is equal to the central angle between the axes of the spindles 7. Each spindle 7 is equipped with a gear coupling half 12, and each the drive shaft 11 is equipped with a gear coupling half 13 (figure 2). The coupling half 13 is mounted with the possibility of axial movement and coupling with the coupling half 12. The working movement of the coupling half 13 towards the coupling half 12 is carried out from a source of compressed air (not shown in the drawings), and return to the initial position from the spring 14. Each spindle 7 is made hollow and equipped with a sleeve 16 located in the cavity 15. One end 17 of the sleeve 16 is located in the area of the element 18 for holding the part, and the second end 19 is with a gap to the base of the teeth of the half-coupling 12. Each drive shaft 11 is made with a polo (Л

WITH

00 (A)

ate

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20 connected to the compressed air supply and equipped with a pipe 21. The pipe & ok 21 is connected to a gear half-coupling. 1-3 and has openings 22 for communicating g; cavity IS of the drive shaft 11.

Y, r R. and about in with works as follows: f) i -.

8 position 1 of the element 18 of the spindle 7 load part 23 (Fig.1, 2). After turning the device .5 a step, i.e. at an angle a, the spindle 7 with part 0 stops at position I. In this position, the axis of the spindle 7 is aligned with the axis of the drive shaft 11. Compressed air is supplied. Under the action of: air (Fig. 3), the coupling half 13 is moved by rmepx and engages with the coupling half 1 .. The spindle rotation drive 8 is turned on. 1. The device 2 performs abrasive-grit machining of the part 23. Compressed air supplied to the cavity 20 and then through the holes 22, the pipe 21, the sleeve 16, blowing the gaps between the teeth of the coupling halves 12, 13 ii, on which the element 18 to hold the part 23, prevents the abrasive from entering. After the abrasive blasting is finished, the parts 23 of the device 2 and the actuator 9 are turned off, the compressed air supply is stopped, the spring 14 moves the coupling half 13 downward. The rotary device 5 moves the spindle 7 from position II to position SII, i.e. angle a. In position III, similar to the method described above, the device 3 performs coating on the part 23, while in the same way as in position II, the compressed air supplied to the cavity 20 prevents the coating materials from entering the area of the element 18 to hold the part 23 and clearances between teeth mi n o1G

and

I

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lumuft 12, 13. From position III, the rotary device 5 moves the spindle 7 to position IV, where in the same manner as described above, the device 4. produces

5 induction reflow applied on-1 roof. From position IV, the spindle 7 with part 23 moves to position 1, where the machined and the raw machined part 23 are unloaded.

Claims (1)

40 Technological operations in positions I, II, III and IV begin to be carried out simultaneously, and their duration is determined by the technology of processing parts in each of the positions that are controlled according to a given program. SUMMARY OF THE INVENTION A coating apparatus comprising a chamber, a sequential processing device, a rotary device coupled to a step turning drive and carrying spindles with parts holding members and gear half couplings for cooperating with gear half couplings of the drive shafts mounted for axial movement, distinguishing so that, in order to increase reliability in operation, each spindle is hollow and provided with a sleeve located therein, 30, one end of which is located in the area of the element for holding the part, and the other with a gap to the base of the teeth of the gear half-coupling of the spindle, each drive shaft made with a cavity 35 in communication with the compressed air supply and equipped with a pipe having openings for communication with the shaft cavity and connected to the gear half-coupling of the drive shaft. twenty 25 1835321 J