RU187905U1 - MULTIFUNCTIONAL VIBROCONTACT HOLE CONTROL CONVERTER - Google Patents

Abstract

A utility model relates to a measurement technique used in a measurement technique. The multifunctional vibrocontact transducer for controlling holes includes a housing, a vibrator mounted in it, made in the form of an electromagnet, whose anchors are mounted on flat elastic elements connected to a U-shaped bracket, with the formation of an oscillating system, and a unit for measuring the amplitude of vibrations of the bracket, including a permanent magnet, fixed on a U-shaped bracket, and a two-section winding covering the magnet and fixed in the housing, while the bracket is made in the form of a multi-stage prefabricated vibration probe, sleep zhennoy packing made smaller diameters than the tube, wherein the probe is screwed into the last lower nozzle. The technical result is the expansion of the functionality of the measuring tool (measuring plug). 1 s.p. f-ly, 2 ill.

Description

The invention relates to measuring equipment used in mechanical engineering, and can be used as a primary transducer in the measuring and control systems of machine tools when measuring the openings of body parts during their manufacture at machining centers (multi-purpose machines).

Known devices for measuring internal dimensions, for example, the control device BV-4257 (Vysotsky A.V., Karpovich I.B., Sobolev M.P., Etingof M.I. Devices for automatic processing control on metal-cutting machines. -M: Mechanical Engineering 1995. -328 c). The device has a version with a two-contact measuring bracket (see ibid. P. 197, Fig. 5.6) and with two single-contact inductive heads (see ibid. P. 199, Fig. 5.7). There is a non-contact pneumatic device BV-4256 (see ibid. P. 202, Fig. 5.8). Known similar instruments for measuring the dimensional parameters of external surfaces, for example, inductive devices of the Caliber plant (Active control in mechanical engineering: Handbook / Ed. By E.I. Pedya. - M.: Mechanical engineering, 1978. - P. 157, Fig. 17). There are similar systems of various foreign companies: Renishaw, Mikrosa, Marposs. At present, the Research Institute of Measurements offers the BV-3348 measuring system (www.micron.ru), tuned to one specific size (diameter) of the holes.

Also known is the “Vibro-contact size converter” (see AS No. 1229562, G01B 7/12, publ. 07.05.86, bull. No. 17). With satisfactory operation in control systems, the converter is only configured to measure one internal size, limited by two diametrically oppositely spaced balls pressed into the vibrating bracket on the side contact surfaces of the vibrational bracket, while the unit of electrical vibration amplitude measurements made using a permanent magnet from SmCo ₅ has limited sensitivity due to the properties of this magnetic alloy.

The objective of the utility model is to create a multifunctional measuring tool (measuring plug) to perform several functions simultaneously:

- automatic control of diametric dimensions without readjustment to each size;

- automatic control of linear dimensions (for example, center-to-center distance);

- control of hole shape error.

The problem is solved in that in a multifunctional vi-contact transmitter containing a housing, a vibrator fixed in it, made in the form of an electromagnet, whose anchors are mounted on flat elastic elements connected to a U-shaped bracket, a multi-stage control tube assembled from separate nozzles is installed, each of which is made to a certain size, with a probe (tip) to control small holes. In this case, the device is installed in the tool store of the machine.

In FIG. 1 shows the proposed design of a multifunctional vibrocontact transducer with a multi-sized assembled plug installed.

The universal vibrocontact transducer (Fig. 1) contains a housing 1, a vibrator made in the form of an electromagnet 2, whose anchors 3 and 4 are mounted on flat elastic elements 5 and 6, connected to a U-shaped assembly tube 7 with the formation of an oscillating system. In addition, the device includes a unit for measuring the amplitude of vibration of the plug 7, including a permanent reinforced magnet 11 pressed into the sleeve 12, mounted on a U-shaped bracket, and a two-section winding 10, covering the permanent magnet 11 and fixed in the housing 1. The permanent magnet 11 is made of material neodymium iron boron (NdFeB). The plug 7 of the oscillating system is equipped with two pressed balls 8 and 9, additional smaller interchangeable nozzles 13 and 14, a probe (tip) 15. The nozzles 13 and 14 in the quantity required for a specific technological operation or a specific technological process are made with smaller diameters than the plug 7 are also equipped with balls and are attached to plug 7 through threaded connections.

In FIG. 2 shows a multifunctional vibrocontact transducer 16 (without a probe) installed in the measuring module, mounted in the spindle 17 of the machine, when processing the body part 18.

A multifunctional vibrocontact converter of dimensions works as follows. To control the dimensions of the part from the tool magazine, this device is inserted into the chuck (spindle) and brought to the part 18 (Fig. 2).

When applying a supply voltage to the coil of electromagnet 2 (Fig. 1), its anchors 3 and 4 through the elastic flat elements 5 and 6 cause the U-shaped tube 7 to be oscillated with a reinforced permanent magnet 11 placed on it. The magnetic flux crosses the winding 10 the measurement unit, exciting in it an EMF proportional to the amplitude of the oscillations of the U-shaped plug 7 and the nozzles 13, 14 and the probe 15 attached to it.

In the presence (or change) of the limiting (controlled) surface, the oscillation amplitude of the plug 7 changes, which causes a change in the EMF induced in the winding 10. This is recorded by a reading or controlled device (not shown). After measuring the first hole, the device (device) is transferred to the next, etc.

An advantage of the proposed multifunctional vibrocontact transducer of dimensions is the installation of a multi-sized precast plug (Fig. 1). This design of a multifunctional vibration-proof transducer makes it possible to control a large number of linear dimensions (diameters) without changing the machine (processing center), reducing the total processing time of products.

In the factory (workshop) conditions, a multifunctional vibrocontact transducer for monitoring holes is installed in the measuring module. The measuring module is permanently located in the tool store of the multipurpose machine. By an auto-operator, the measuring module moves to the machine spindle, and according to the program, the dimensional parameters (diameters) of all holes of the part are controlled taking into account the center-to-center dimensions for one installation of the device, reducing the total time of control operations.

Claims (2)

1. A multifunctional vibrocontact transducer for controlling holes, comprising a housing, a vibrator mounted in it, made in the form of an electromagnet, whose anchors are mounted on flat elastic elements connected to a U-shaped bracket, with the formation of an oscillating system, and a unit for measuring the amplitude of vibration of the bracket, including a magnet mounted on a U-shaped bracket, and a two-section winding covering the magnet and fixed in the housing, characterized in that the bracket is made in the form of a multi-stage assembly vibration plugs equipped with nozzles made of smaller diameters than the plug, while the measuring probe is screwed into the last smaller nozzle. 2. A multifunctional vibrocontact hole monitoring transducer according to claim 1, characterized in that it is installed in the tool store of a multi-purpose machine (machining center).

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