SU709347A1 - Apparatus for controlling grinding wheel dressing - Google Patents

Description

Union of Soviet

Socialist

Republics

State Committee

USSR for inventions and discoveries

DESCRIPTION <11) 709347

INVENTIVE .....

TO AUTHOR'S CERTIFICATE ^? h; Ί 'Λ //' · - “/ ^f ·. . !

(61) Additional to author certificate-wu _ (22) Declared 10.01.78 (21) 2 567480 / 25-08 with the addition of application No. (23) Priority -

Published on January 15th, 2008. Bulletin No. 2

Date of publication of the description 18.01.80 (51) M. CL ^{1 2 * *}

24 V 49/10 (53) UDC 621.923.

.4 (088.8).

(72) The inventors

A. B. Cherenov and V. Ya. Maneyuk (71) Applicant (54) DEVICE FOR CONTROL OF EDITING OF THE GRINDING CIRCLE

The invention is intended for use in the machine tool industry manufacturing machine tools, mainly for grinding parts in mass and large-scale production. ⁵

The known device allows you to edit the grinding wheel, taking into account the unevenness of its wear during operation. This device contains a device for dressing the cutting edge of the grinding wheel and a device for monitoring the operation of the correct device. The active control device consists of blocks that periodically turn on the correct device at a gradually increasing frequency in accordance with a decrease in the working diameter of the grinding wheel.

Active control device consists of a counting device for _m working connection with the best instrument minutes adjustable to count the required number of pulses representing the initial number of articles that need to grind the cutting cr © edge circle at the beginning of grinding operation, when the working diameter of the grinding wheel maximum, and turning on the device for straightening the circle when a given number of pulses is received; signaling devices connected to a counting device to supply a pulse every time the product is ground [1J. 'A disadvantage of the known device is that it does not allow to increase the dressing intensity. As the working diameter of the grinding wheel decreases when grinding parts with large machining gaps, when during the processing of one part the wear of the wheel is so great that it requires multiple dressing.

The aim of the invention is to simplify the device and expand the scope of adaptive dressing of the grinding wheel by dividing its working part into several zones with predetermined dressing modes in each zone of the wheel and

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Signal block 1 sends a command to pulse pair 2 and block 6. E? Lock 6, having counted the specified number of commands (the number of machined parts), corresponding to _{5 in the} first zone of the grinding wheel, allows pulse pair 2 to connect editing relay 3, which, in in turn, it connects the correct device (not shown in the drawing) and supplies a pulse to the relay 4 counting pulses of editing the zone. Turnip 4, having counted the proper number of edit pulses per zone, gives turnip 5 impulse, which determines the circle zone. Having received a pulse, relay 5 switches block 6 to work in 15 mode of the next zone of the circle, i.e. sets block 6 to a new, subsequent setup, etc. If turnip 5 enters the circle zone of several dressing pulses during the processing of one part, then it turns the pulse pair 2 on, and when the command is sent by signal device 1, pulse pair 2 works, which gives the command to turnips 3 and pulses to block 6, which in this case counts25 the number of dressing pulses during processing of one part. The transition to any area of the circle, if necessary, can be done manually using the button.

Claims (1)

The invention is intended for use in the exponential industry, producing machines, mainly for grinding parts in mass and large-scale production. The known device allows the grinding wheel to be edited, taking into account the non-uniformity of its wear during operation. This device contains a device for straightening the cutting edge of the grinding wheel and a device for monitoring the operation of the correct tool. The instrument of active control consists of blocks periodically turning on the correct device with a gradually increasing frequency in accordance with a decrease in the working diameter of the grinding wheel. An active control device consists of a counting device intended for working communication with the correct device and adjustable for counting the required number of pulses, which is the initial number of products. which need to be ground with a cutting edge of the wheel at the beginning of the grinding operation, when the working diameter of the grinding wheel is maximum, and turning on the device for wheel dressing, when a given number of pulses has been received; signaling devices, connected to X with a counting device, for supplying pulses every time the product is polished 1. A disadvantage of the known device is that it does not allow for an increase in the intensity of dressing. As the working diameter of the grinding wheel decreases, when grinding parts with large gaps for processing, when in the course of machining one part the wear of the wheel is so great that it requires instant correction. The aim of the invention is to simplify the device and expand the area of use of the adaptive dressing of the grinding wheel by dividing its working part into several zones with previously edited editing modes in each zone of the wheel and 370 reduction, thereby reducing abrasive and diamond right hand tools. The goal is achieved by the fact that the known device, which provides an automatic increase in the intensity of the grinding wheel grinding as it is worn during operation in the direction from the periphery to the center, is equipped with two series-connected electric relays, the first of which is connected to the output of the re. the second, to the counting unit, and the pulse pair, the outputs connected to the turnip fixing and the counting unit, and the inputs to the outputs of the signal unit, the second pulse counting relay and the counting unit. Figure 1 shows the functional diagram of the device to control the grinding wheel. The device for controlling the straightening of a circle wheel contains: a signal unit 1, which is a standard relay type RPU-1, which is turned on at the machine operation cycle, a pulsar pair 2 with a command output to the relay relay 3, which is a standard relay RPU-1, a relay 4, which determines the number of edits per zone and is a standard RSI-2 pulse counting relay; The relay 5, which determines the zone of the working part of the grinding wheel in the direction from the working periphery to the center, is a standard relay of the RSI-1 pulse counting network. In the circuit of the stepper finder, relays 5 include small-sized relays (not shown in the drawing), the contacts of which determine the setting of the account unit (relay) 6. The counting unit 6, from the counting number of workpieces between two adjacent edits or the number of editing pulses the processing time of one part is a standard RSI-1 pulse counting relay, the counting pulses of which are determined either by the contacts of the pulse-pair relay 2 with the number of dressing pulses more than one during the processing of one part, or by signal contacts a unit 1 for counting the number of parts to be processed between two adjacent corrections. The device works as follows. The alarm unit 1 commands the pulse-pair 2 and the block 6. 6, counting out the specified number of commands (number of machined parts) corresponding to the first zone of the grinding wheel, allows the pulse-pair 2 to connect the relay 3, which, in turn, connects The correct device (shown in the drawing) and sends a pulse to the relay 4 pairs of zone edit pulses. Relay 4, reading the proper number of pulses from the ravika per zone, gives impulse to relay 5, which determines the area of the circle. Having received a pulse, barely 5 switches block 6 to work in the mode of the next zone of the circle, i.e. set block 6 to a new one, subsequent setting, etc. If relay 5 enters the zone of a circle of several editing pulses during the processing of a single part, then it activates the pulse-pair 2, and when the command is sent by the signal device 1, pulse-pair 2 operates, which sends a command to the editing relay 3 and pulses block 6, which in this case counts the number of impulses editing when machining one part. The transition to any zone of the circle, if necessary, can be carried out manually using the button. Claims An apparatus for controlling the grinding wheel dressing comprising a counting unit connected to the dressing device through an electric dressing relay and a signal unit giving a pulse after finishing the grinding of the part, characterized in that, in order to simplify the design and extend the area of use, the device is equipped with two sequentially switched on electric turnips of pulse counting, the input of the first of which is connected to the output of the editing relay, and the output of the second to the counting unit, and pulse-pyry, and the outputs are connected Changes to the relay and the counting unit, and inputs - outputs to the signal unit, the second relay and the pulse counting unit counting. Sources of information taken into account in the examination 1. UK patent number 1348458, cl. In the ST, published. 1974.