SU1196816A1 - Device for assembling and checking electronic units - Google Patents

Abstract

A DEVICE FOR ASSEMBLING AND CONTROL OF ELECTRONIC KNOTS, containing a loading mechanism connected mechanically through a unit for measuring parameters of parts and a sorting unit with two i bunkers of sorted parts, two control units, an assembly mechanism mechanically connected to a bunker of finished products, characterized in that in order to increase the performance of the device, two parts feed mechanisms, a reversible counter, a decoder, a clock generator, two channels of control of the parts feed mechanisms, as The one of which contains a switch, a delay element, three keys, an Element OR, a pulse shaper,. a counter, a block of sensors for the presence of parts, connected by inputs to compartments of the corresponding bunker of the sorted parts, outlets - to information inputs of the switch. BIM1IOl connected with the output to the information input of the second key and the input of the delay element connected by the output to the information inputs of the first and third keys connected by the outputs to the first and second inputs of the OR element connected by the output to the control input of the pulse shaper, the output connected to the input a counter connected by the output to the control input of the switch; torus and the input of the appropriate control unit connected to the control input of the corresponding component feed mechanism mechanically connected with the corresponding bunker of the sorted parts and (L assembly mechanism, the outputs of the second keys of the first and second channels controlling the parts feeding mechanisms are, respectively, connected to the summing and subtracting inputs a reversible counter connected to the bit outputs to the input of the decoder, connected: on the outputs to the control inputs of the first, second and third The key X of two channels of control over the part supply mechanisms, the output of the third key of the first channel of the control of the part feed mechanism is also connected to the third input of the element OR of the second channel of the control of the feed mechanism of parts, the output of the third key of the second control channel to the third input of the element OR of the first control channel, clock the inputs of the pulse shapers are connected to the output of the clock generator.

Description

The invention relates to devices for the manufacture and installation of electronic components and can be used in the manufacture of electronic equipment.

The purpose of the invention is to improve the performance of the device.

FIG. 1 is a functional diagram of the device in FIG. 2 is a block diagram of the control unit J in FIG. 3 - structural diagram of a pulse pulse; in fig. 4 histogram of the distribution of batches of parts.

The device contains a loading mechanism 1, a unit 2 for measuring parameters, parts,. sorting unit 3, bunkers 4 sorted parts, control units 5, assembly mechanism 6, finished product bunker 7, component feed mechanisms 8, component availability sensor block 9, switch 10, delay element 11, first key 12, OR element 13, pulse driver 14 , counter 15, second key 16, reversible counter 17, decoder 18, third key 19, 20 clock pulse generator, difference circuit 21, standby multivibrator 22, counter 23, element 24, RS flip-flop 25, n number of parts in the sorting group Sorting group number i S - width of the sorting group ki

Above the bars of the histogram are the numerical values of the number of parts in a group. The arrows indicate the order docking. The shaded areas of the histograms show the volume of collection of parts, and the open areas are the volume of work in progress.

The essence of the invention is as follows. The parts entering the loading mechanism 1 are oriented and guided to the part parameter measurement unit 2, where the determining parameters of the parts (for example, the resistance of the divider resistors) are measured. After that, according to the measurement results, the parts are sorted into groups in the sorting unit 3 and stored in the respective compartments of the bins of 4 sorted parts. The sorting group width in the proposed device is k times less than the maximum possible in the known device, and, therefore, number of groups

sorting is k times more than in the known device. In contrast to the known device, where the order of the picking process is carried out rigidly, i.e. each group of sorted parts of the same type corresponds to a certain group of sorted parts of a different type, in the proposed device the width of the group is k times smaller, therefore the conditions for assembling parts of the i-th sorting group will be performed with groups of parts of a different type whose numbers are in the interval i-k + 1, ... i, .. ,, i + k-lj. Consequently, there are several different options for picking, and parts left over from picking two groups of different parts can be completed with the details of the adjacent sorting groups.

The process of picking (Fig. 4) in the proposed device (with k 2) is carried out by completing parts from the extreme groups (group 1.1) until the parts of the smaller group (groups 1.1, parts A) are used up. After that, the remaining parts of the larger group (group 1.1, parts B) are completed with the details of the neighboring group (i pynna 1,2, parts A, indicated by arrows). Acquisition of parts B of group 1.1 with parts of A of group 2.1 is no longer possible. Therefore, the remaining details in group 1.1 will be sent to work in progress.

Next, complete parts B of group 1.2 with details A of group 2.1. The number of parts B in group 1.2 is five, and the number of parts A in group 2.1 is 20. When assembling the parts of these groups, five sets are obtained for assembling components. The remaining parts A of Group 2.1 will be completed with B parts of Group 2.1. After this assembly, the five parts A of group 2.1 can be assembled with parts B of group 2.2. However, in this group there are no parts and the remaining 5 parts A are being put into work in progress. Further, the picking is carried out between groups 2.2 of part A and 3.1 of part B. At the same time, five parts A of group 2. /

3

enter the work in progress. Similarly, the acquisition of the remaining sorting groups.

The decoder 18 is designed to determine the two positions of the counter 17 (the conversion factor of the reversible counter N 2k) when the number of pulses at the input of the direct count is greater by fe than the number of pulses at the input of the counting, i.e. In counter 17, the number k is written and, when the number of pulses at the input of the countdown is greater by fc than the number of pulses at the input of direct counting, i.e. the number N-k will be recorded in the counter, the signal of the logical unit y will appear at the output of the decoder.

The device works as follows.

Before the start of the picking process, the counter 15 and the reversible counter 17 are zeroed. The zero code of the bits of the counter 15 is fed to block 5 which transfers the corresponding mechanism 8 for feeding parts to the first compartment of the bunker 4. In this case, the mechanisms select parts from the first compartments of the bins 4 of the sorted parts and feed them to the assembly mechanism 6. At the same time, the code of the bit counts. KA 15 is fed to the switch 10, which at its output connects the output of the first sensor unit 9, corresponding to the first compartment of the hopper 4.

If there are parts in the compartment of the bunker 4, the corresponding sensor of the block 9 outputs the logical O signal. After the mechanism 8 has selected the last part from this compartment, the sensor outputs the signal of the logical 1 at the output of the block 9, which is fed through the switch 10 the delay element 11 and the key 16. The delay element 11 delays the front of the received signal by the response time of the sequential chain: key 16, counter 17, depressor 18, first 12 or third 19 key.

at the zero code of the counter 17, the decoder 18 on both outputs outputs a logical O signal, which opens the first and second keys 12 and 16 and closes the third key 19. The signal of the logical unit 1 from the sensor block 9 is supplied via the second

) 6816

Key 16 to one of the inputs of the forward or reverse counting of the reversible counter 17, which changes its state by one. Since the new state of the reversible counter 17 is not equal to the numbers fc and N-k, the remote controller 18 does not change the states of the signals at the outputs.

to delayed signal logic

1, the delay element 11 arriving at the public key 12 passes the logical element OR 13 and arrives at the first input of the driver 14. Gets the S 20 generates a continuous sequence of clock pulses supplied to the second inputs of the drivers 14. The frequency of the generator pulses 20 is determined by the speed of the mechanisms 8. After arriving at the control input of the shaper 14 of the signal of the logical 1 in this block, one pulse is separated from the sequence received

25 from the generator 20, and is fed to the input of the counter 15, which changes its state by one. The code bits counter switches the switch 10, which, in turn,

2Q connects the second sensor (corresponding to the second compartment of the bunker 4) of block 9. In addition, the code of the bits of the counter 15 through the block 5 transfers the mechanism 8 to a sample of parts from the second compartment of the bunker 4.

 I

Similarly, the picking process continues for the mechanisms of both parts until the code of the numbers k or N-K is recorded in the reversible counter 17. In this case, the decoder 18 generates a signal of logical 1, which shrinks the first and second keys 12 and 16 and unlocks key 19. The delayed signal of logical 1 from delay element 11, pass third key 19, goes to the logic element. OR 13 of both channels of control mechanisms 8 and served on

50 control inputs of both drivers 14. At that, both drivers 14 generate the same pulse synchronously from a sequence of 20 clock pulses from the generator, these pulses are fed to the corresponding counters 15, which are switched by the switch 10 sensors of the block 9 and by means of blocks 5 control mechanisms 8 feed parts to the next 1196816 bin compartment 4 sorted parts.

Fi1.g

fig.Z

ffttixod

Claims (1)

DEVICE FOR ASSEMBLY AND CONTROL OF ELECTRONIC ASSEMBLIES, containing a loading mechanism, mechanically connected via a unit for measuring the parameters of parts and a sorting unit with two i bins of sorted parts, two control units, an assembly mechanism connected mechanically with the bunker of finished products, characterized in that, with In order to increase the productivity of the device, it introduced two parts feeding mechanisms, a reversible counter, a decoder, a clock pulse generator, two control channels for feeding parts, each of which which contains a switch, a delay element, three keys, an OR element, a pulse shaper, a counter, a sensor for the presence of parts, connected by inputs to the compartments of the corresponding hopper of sorted parts, and outputs - with the information inputs of the switch connected to the information input of the second key and the input of the delay element connected by an output to the information inputs of the first and third keys, connected by outputs to the first and second inputs of an OR element, connected by an output to a control input, form For a pulse, the output is connected to the counter input, connected to the control input of the switch and to the input of the corresponding control unit, connected to the control input of the corresponding part supply mechanism, mechanically connected with the corresponding bunker of sorted parts and the assembly mechanism, the outputs of the second keys of the first and the second control channels of the parts feeding mechanisms are connected respectively to the summing and subtracting inputs of the reversible counter connected to the discharge outputs to the input of the decoder, connected by the outputs to the control inputs of the first, second, and third keys of the two control channels of the parts supply mechanism, the output of the third key of the first control channel of the parts supply mechanism is also connected to the third input of the OR element of the second control channel of the parts supply mechanism, the output of the third key of the second control channel - with the third input of the OR element of the first control channel, the clock inputs of the pulse shapers are connected to the output of the clock generator. 918961T