SU736047A1 - Device for checking article dimensions - Google Patents

Description

(54) DEVICE FOR CONTROL OF EXPANSION

The invention relates to a measuring technique and can be used in devices for controlling and orienting parts of complex shape, for example, when checking the precise forgings of these parts or when checking and orienting parts for fixing base surfaces before machining.

A device is known for controlling and orienting parts, comprising a part installation unit i, actuators for moving a part, fixing the part in the optimum position, sensors for deviating sizes of points of monitored surfaces, an optimizer, signal j to the actuators as well as software drive units for each sensor, the units of the task of the programs for these drives and the memory unit, sequentially fixing the readings of the sensors at all controlled points and connected to the optimizer l.

The drawbacks of the device are low accuracy of the II device. DETAILS

the lack of minimum and maximum deviations of the dimensions of the controlled points of the part and deviations of dimensions from the upper and lower tolerances, as well as the possibility of deviations of the dimensions of the part beyond the limits of the tolerance of the part either after the end of the orientation process or after processing. When optimized only from the data on deviations of the 10 dimensions of the part, after the completion of orientation orientation, the minimum deviations may exceed the tolerances for the part or be close to the borders of the tolerances for the part, and therefore after subsequent processing of the detail due to inaccuracy of machining parts can also go beyond the floor of the tolerance for the part.

The closest technical solution is a device for controlling the dimensions of a part, containing sequentially connecting 5 {non-identical control unit, optimization unit 1, executive unit

73

vlov and block installation petap ;. inlet-tello connected by the first block of the match -; for controlled yIepoon n 8p: 1b1n block of transducers, and so; to fleur iiiircuation, one input of which is connected

with the outputs of the control unit 2f ..

The disadvantage of the device is piak51 point-bone.

The purpose of the invention is to increase the accuracy of the device.

The goal is achieved by the fact that a second block of sensors of controlled dimensions and, successively, a connecting pulse generator, a synchronization block, a second block of presets, and a selection of the operating mode, the RC of which is connected to the other input unit, is integrated into the device; The inputs of the cutters are the first transducer block to the first output of the synchronization unit, the second output of which is connected to another input of the display unit. The outputs of the Ptulsov generator and the second sensor unit of congruent sizes are connected respectively with other inputs b, the control locator and the transmitter unit of the transducer, as well as the fact that the selector unit is ret5 (operation of the sop.er- -big element nt M / IM, a, iieN, {eirr Pi, gere-sender and logical the node whose outputs are connected to the outputs of the OR element and the AND element, the outputs with one of the crossover inputs, which are connected to: the outputs of the OR element and the AND element,

In FIG. 1, Presentation, Lena B, Lok-sh. Device, Pa. FIG. 2 - a block diagram of the mode of operation selection; in FIGS. - 3 - a converter.

A device for controlling the size of the parts considers and the printer controls and orientates the compressors. blades. The device contains {5t unit 1 of installation of a part 2 according to its basic structure: ovorkh “kost m, unit 3 of the actuating mechanism, mov, the first unit of 4 sensors. contact size with adjustable sizes, second block 5 D |: t5ik of controlled dimensions, containing sensors 6, 7 and 8 of zero and maximum permissible deviations of the dimensions

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Tfep out

about additional - f. Chipboard block of 9 converters, second block

1O of the converters, containing the PTs 11, 12 and 13, and the synchronization block 14, the ontimization block 15, containing the differential element 16, the trigger 17, the generator 18 and the control element 19, the mode select block 2O: a-bots the control block 21, state of mind

cxcKvf 22 if 23 unrchrhleiil, 24 ihgileue generator and 25 in / tkalii block, consisting of schs-tchik 26, register 27 and 11ifrato 28 and indicator 29.

The EJjroK 20 mode of operation (see FIG. 2) consists of AND OZO OR 31 elements, a logical node 32 consisting of AND 33, 34, 35, 36 elements, a logic circuit 37, and OR elements 38 and 39, and a switch -4O.

The blocks 9 and 10 of the transducers (see FIG. 3) consist of transducers 4 1 with deviations of the sizes nanrhen1 1y, integrators 42, tgulge-bodies 43, three: g.

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digital parts of the device and circuits 46

integrator key management,

The device works after, d) uazhoy oazoh.

Part 2, installed in unit 1, installs the parts, but unit 4 operates. Sensors 6, 7 and 8 are constantly installed): zero and up to seven types of XQ, K.,., And X , .dssz, s, to. Under the influence of signals Uch {.. (K ,, x ,,,,

- .. .- (-lm.n.: V..aKC, tvOtiP the course of the converters arrive on

npsoKom proportional to the size of X,., In a nerve stroke from the first pulse of the first impulse from block 14 of the PP -: - - chronizalil integrators 42 integrator;

positive pressure- + U,. In the second cycle with the supply of the second H; the pulsation of the CXP5PP arrangement integrates a constant negative voltage — U When the voltage level of the zero level on the outputs of the integrators 42 is triggered, the splicing organs 43 are triggered; - bend .-- with triggers 44 and through circuits 45 sp;; the analog and digital parts of the device are fed to the inputs of block 20 from the selection of the operating mode; Odlovremeino slanals with trigger 44 are received in s. 46, the integrator key management, overload / input inputs are: integrators 42 voltages Y and permitting the supply voltage UM, O. the output of null-organs 43, corrected by this .m. D {e11 (-nul schl-organs, Sledg; preferably, from the beginning of the second measure after the time -t ,,, -t,, -., -tj ,, to

, Aon ,, prje m u, a znapgg and. deviations of the sizes X (X ,,, Kj ,, ,,, and N o., .., s

v ,,,,.,. ,,.,,}, Tja outputs of the npeo6fin3O- 57 block: a signal appears at the output of the output of block 20, With the appearance of a signal at one of the outputs of block 9 at the output of the OR 31 element. a signal also appears. With the appearance of signals at all outputs of block 9, a signal appears at the output of the And 30 element. The duration of time i from the beginning of the second clock cycle until the appearance of the signal at the output of the element OR 31 is proportional to the minimum deviation of dimensions L, CA “Uncontrolled surface, and the length of time of the beginning of the second cycle until the appearance of a signal on vb. the course of the element H 30 is proportional to the maximum deviation of the sizes of the h ,,, of the controlled surface. The logical node 32 produces a comparison of the durations t, -, i, .w of the chak -t. As a result of the comparison, one of the two outputs of the node 32 is given an enable signal to the inputs of the And 33, 36 or 34, 35 elements, giving permission to pass to the contacts of the switch 40 signals from the driver 12 and the element OR 31, or from the element and the DZ and the converter 13. The device can work in one of the following modes: 1. When the contacts of the switch 40 are set to position 47 on the circuit 22 and 23 control signals are received from the element OR 31 and from the transducer 11. The first passing signal is always the signal of the beginning of the counting of pulses by counting 26 and the counter of the trimming element 16, and the second is the signal of the end of counting. By the start of counting signal, pulses from the pulse generator 24 are output to the output of the control circuits 22 and 23. In control circuits 22 and 23, the sign of the signal is also determined. As a result, in the counter 26 and in the counter 16 of the differentiating element in the second cycle the minimum deviation of the dimensions Q of the test surface is recorded. At the end of the second clock cycle, the information from counter 26 is copied to memory register 27 and indicated by indicator 29, and in the next first clock counter 26 is set to zero. In differentiating element 16, diff (}; the input value Q Chllin is derived. Derivative dO, / cH is fed to trigger 17. Output value ± U of Trigger 17 is fed to the inputs of the generator-18, whose operation is described by the UR-UJ-Jm-, , i, g. -const, t. h where where is the generator's co-loading threshold, n is the auxiliary value, common for all channels. As a result of generator operation 18, the control unit 3 is executed by element 19; ; s. 2. When installing the contacts switch tep 40 at position 48 in the counter 26 fixpoints maxima The deviation of the spread is optimized for the fcc deviation of the digits аa, 3- When the contacts of the switch 40 are installed in the polisenia 49, the indicator 29 shows the ram of the deviations of the size ров m, l, l over the profile of the surface and this is optimized 4. When the contacts are switched, the switch 4O to the position 50 is used to display and optimize the deviations X ,. t ,, H p, OGG 5. When the contacts are installed, the switch O.athep 40 to the position 51 will produce a response and optimize the deviations. With additional 6. When installing the contacts of the switch 40 to dix 52 prottzvodits -K.gdikatsi and optp; pzatsi. min1p1 of the maximum deviation of the dimensions of the pyeNibix noBOpxiiocTefi from any of the graT-silt. ADD SKOV (or),. „V .., n Chipboard ™ bp h) h -.-. S, (, with fxon.-ax Use the .iiainioro device to improve the performance of control and orientation of the parts. 3 5 times. Accuracy of control 2-5 times, accuracy of orientation by 5-10 times. Reduced WHO mol.nost popapdnp deviations of sizes for the lower limit of tolerance (irreparable marriage). 2.3 times. Formula of the invention 1. Device. The control of the dimensions of the parts. Contents: h1deee successively the joint control unit, the optimization unit, the executive unit and the unit, and the unit Spruce but soy and 1nenny first sensor unit is controllable: pa3NiepoB and the first converter unit, and that is the DICacation unit, one of the inputs is SEDEED; YOU WITH OUTPUTDY-NiH control unit, This is due to the fact that, in order to increase the accuracy of the device, a second sensor block of controlled dimensions has been introduced into it. and series-connected pulse generator, synchronization unit, g; The second transducer unit and the operating mode selection unit, the output of which is connected to one input of the control unit, and the inputs through the first transducer unit to the first output of the synchronization unit, the second output of which is connected to the input of the display unit, the outputs of the pulse generator and the second sensor unit of controlled dimensions are connected respectively, with other inputs of the control unit and the second unit of converters. 73. 2. The device according to II. 1, differs from the fact that the operating mode selection block contains an OR element, an AND element, a switch and a logic node whose inputs are connected to the OR outputs of an OR element and an AND, outputs from one switch inputs, the other inputs of which are connected to the element outputs OR and element I. Sources of information taken into account in the examination. “USSR author's certificate No. 280884, cl. B 07 C 5/04, 09.03.67. 2. USSR author's certificate No. 5727,64, cl. G 05 B 23/02, 08.05.75 (prototype).

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Claims (2)

Claim 1. A device for controlling the dimensions of parts, comprising a control unit, an optimization unit, an actuator unit and a part installation unit, a first unit of sensors of controlled sizes and a first unit of converters connected in series, as well as an indication unit, one of whose inputs are connected to the outputs of the control unit , which is noteworthy in that, in order to increase the accuracy of the device, a second block of sensors of controlled sizes, and a pulse generator connected in series, are introduced into it, synchronization lock, second converter block and an operating mode selection block, the output of which is connected to one input of the control unit, and the inputs through the first converter block - to the first output of the synchronization block, the second output of which is connected to another input of the display unit, pulse generator outputs and the second block of sensors of controlled sizes are connected respectively to other inputs .15 of the control unit and the second block of converters. 2. The device according to π. 1, the fact is that the operation mode selection block contains an OR element, an AND element, a switch and a logical node, the inputs of which are connected to the outputs of the OR element and the AND element, outputs with one switch inputs, the other inputs of which are connected to the outputs of the OR element and the AND element. . Sources of information taken into account during the examination .1. USSR copyright certificate No. 280884, cl. B 07 C 5/04, 09.03.67. 2. Copyright certificate of the USSR * No. 572764, cl. G 05 B 23/02, 08.05.75 (prototype). / 5 figs f Phil. 2 7 36 O 47