SU918053A1 - Apparatus for burnishing parts - Google Patents

Description

(54) DEVICE FOR FINISHING AND STRENGTHENING HANDLING PARTS

The invention relates to the field of vibration technology and can be used in various fields of industry for finishing and hardening processing.

A device for finishing and hardening machining of parts / containing a working body elastically mounted on the base, oscillating movement by two groups of kinematically interconnected common-mode unbalance vibro: pathogens, received rotation from the electric motor through drive rails, the device has a mechanism and means of controlling the phase mismatch of the groups of fl

A disadvantage of the known device is the complexity of the design.

The aim of the invention is to simplify the design of the device.

The goal is achieved by the known device, the phase mismatch mechanism of the exciter groups is made in the form of a chain transmission containing two groups of interconnected sprockets, each group of sprockets consisting of driving ,.

parasitic and tensioning sprockets, whereby the drive sprockets are fixed respectively on the drive angles of the vibration exciter groups, the parasitic sprockets are mounted on the base, and the tension sprockets are located on the platform inserted into the device, mounted on the base of the guides provided with

10 of the possibility of reciprocating movement, as well as the fact that the means for controlling the phase mismatch of the groups of vibration exciters is made in the form of one connected with a measure 15. linear displacement sensor device, kinematically associated with the platform with tensioning stars.

Figure 1 shows the kinematic diagram of the device, a view in plan; Fig. 2 shows a kinematic diagram of the mechanism of the phase mismatch of groups of vibration exciters and a scheme for controlling the magnitude of the phase mismatch 25 of van (section A-A in Fig. 1).

The device contains an elastically mounted working body 1 for finishing and hardening the processing of the fetcher, driven into oscillatory motion.

Claims (2)

30 to two groups of kinematically interconnected common-mode unbalance exciters 2. The mechanism 3 of phase mismatch of groups of vibratory pathogens is arranged to ensure synchronization of these groups in the stationary mode of oscillation of the operating device 1 and has the form of a multilink symmetrical chain transmission / containing a pair of driving stars 4 and 5 fixed on shafts b and 7 of the drive of exciter groups 2, and rtapy parasitic sprockets 8 and 9i between the drive sprockets 4 and 5 and between the parasitic sprockets 8 and 9 respectively, tensioning sprockets 10 and 11 are installed, the axes of which are fixed on the platform 12, having the possibility of straight-line movement in a plane parallel to the plane of the chain transmission, along its axis of symmetry, carried out from the electric motor 13 by means of a helical gear 14. The straight chain segments of the mechanism 15 3 phase mismatch groups of vibration exciters are located parallel to each other. Drive exciters 2 made from the electric motor, 16 through the shaft b, drive sprocket 4, chain 15, drive sprocket 5, shaft 7, as well as through chain synchronizers 17 and 18 of exciters of each group. The amount of movement of the movable base 12 of the axles of the tensioning sprockets 10 and 11 is limited by the limit switches by the bodies 19 and is not less than a quarter of the length of the pitch circle of the drive sprockets. In this case, a 12-liter displacement is inmatically connected with a moving contact of a linear potentiometer 20 connected to a voltmeter 21. During operation of the device in a stationary mode, the electric motor 16 communicates rotation to the shaft b with an asterisk 5 fixed to it and fixed with an asterisk 5 on the shaft 7. The circuit 15 synchronizes the rotation of the shafts b and 7, which, through the chain synchronizers 17 and 18, impart rotation to the unbalanced vibration exciter m 2, driving the working body 1 into oscillatory motion 1. To change the amplitude The operating unit 1 includes an electric motor 13, which, by means of a screw gear 14, communicates direct linear movement in a plane parallel to the plane of the multi-link chain drive along its axis of symmetry to a movable platform 12 with tension sprockets 10 and 11. Parallelism of the straight sections of the chain 15 chains the transmission allows the tensioning sprockets -10 and 11 to be moved without changing the pre-tensioning of the chain 15. When the sprockets 10 and 11 move, the driving sprockets 4 and 5 receive increments of angular velocity increments with opposite signs, thereby varies the magnitude of the phase mismatch between them and, accordingly ,, between groups exciters 2, resulting in a corresponding, change in the amplitude of oscillations of the working body 1. The possibility of adjusting the amplitude of oscillations from zero to a maximum is provided by the amount of movement of the tension sprockets 10 and 11 by a distance of not less than a quarter of the length of the pitch circle of the drive sprockets 4 and 5, corresponding to the change in the magnitude of the phase mismatch of vibration exciter groups 2 from O to 180. Moving the paddle 12 with the tensioning sprockets 4 and 5 causes a corresponding displacement of a moving contact kinematically connected to it with a linear potentiometer 20, from which the corresponding voltage is recorded, recorded by a voltmeter 21. The magnitude of the voltage regulates and monitors the vibration exciters 2 and, accordingly, the magnitude of the oscillation amplitude of the working member 1. The proposed device for finishing and hardening the machining of parts makes it possible to reduce the labor intensity of its manufacture. 30%, easy to set up and use, which ensures its efficiency and reliability. Claim 1. Device for finishing and hardening the processing of parts, containing elastically mounted on. the basis of the working body, the oscillating movement of two groups of kinematically interconnected common-mode unbalance exciters, received rotation from the electric motor through the drive shafts, while the device has a mechanism and means of controlling the phase mismatch of groups of vibration exciters, characterized in that, in order to simplify the design of the device , the phase mismatch mechanism of groups of vibration exciters is made in the form of a chain transmission containing two groups of interconnected infinitely a chain of asterisks, each group of stars being formed from drive, parasitic, and tensioning asterisks, with drive stars attached to the drive shafts of vibration exciter groups, respectively, parasitic stars are mounted on the base, and the tension sprockets are located on the platform inserted into the device mounted on at the base of the guides with the possibility of reciprocating movement. 2. The device according to claim 1, of which is that the means of controlling the phase mismatch of the groups Vibro-excitement is made in the form of a linear deflector sensor connected to the measuring instrument, kinematically connected with a plane with tensioning stars with a star. Sources of information taken into account with expert 1. Avtorskre USSR certificate 743849, cl. B 24 B 31/06, 1978, H Aa L7 Tfte-r fug, 2