SU948615A1 - Slot grinding machine tool - Google Patents

Description

The invention relates to the field of machine tools.

The known machine for grinding splined shafts with an electronic vertical feed control system has a block of output commands, a machine response block, an input block, a control block, an adjustable motor for vertical feeding of the grinding wheel carriage, a grinding wheel feed mechanism and a product feed block. The machine provides for changing the rough and finishing feeds of a circle from one passage to another according to a certain law, it allows you to set the required number of nursing passages, edits of circle 1.

On this machine, a step change from the passage to the feed of the wheel (depth of cut) and the speed of movement of the table with the product (hereinafter, product feed) cannot be realized. In addition, on the machine it is impossible to change the product feed and the rebound of the grinding wheel while moving the table with the product, as well as changing the values of the speed and depth of dressing of the grinding wheel during processing.

The aim of the invention is the creation of a machine tool that allows to increase the grinding performance of splined shafts by using a flexible machining cycle.

The goal is achieved by the fact that an adjustable throttle, an adjustable feed motor, a control unit

10, an arithmetic logic unit and a persistent storage device, the first output of which is connected via a control unit and an adjustable motor with an adjustable

15 by the choke, the second output is connected to the output command block, and the third output is connected to the first input of the arithmetic unit, the second input of which is connected to the output of the unit from the machine, and the output to the input of the permanent storage device.

The drawing shows the block diagram of the proposed grinding machine.

Along the guides of the bed 1, the table 2 is moved. On the bed there is a column 3, along the vertical roller guides 4 of which moves to the depth of cut (feed) the carriage 5 with the grinding wheel 6. In

The 30 centers of the dividing mechanism 7 and the headstock 8. are located on the table, Haxoj; HTCf {splined shaft 9 being machined, Turning the product (division) to the axis i; : - 1 from the engine regulator 12, CE, which is secured through the control alarm 13 with the first output of the permanent storage device 14, which is controlled through the control 15 and regulated. engine 16 controls the throttle 17. The circle is driven by diamonds 18 from the wheel-straightening unit 19. The second output of the permanent storage device 14 is connected via (an end-to-end machine 20 unit with machine actuators 21 (electromagnets, gold-1 , magnetic actuators, etc.). The third output of the persistent storage device 14 is connected to the first input of the arithmetic-and-logical device 22, the second input, which through the response block 23 is connected to the signaling authorities 24 (endpoints / controls, etc.). Tr The third input arithmetical-logic device is connected to input unit 25, and the output of the arithmetical-log of the: - device is connected to memory input.The table with the product is moved with; feed unit 26, iibiKjJiHeiiHbiM, for example, as hydrosan1 ; i and driven from it hydrocillin. ppbtoy; 1red-pagaemog6 s1anki can be represented as: about from a yes and aaaaaaa 3cj ny ktsi k.chov. remember: -o 14 size information and, on the amount of feed 1Nformadi Vioddits i; arithmetic logical method 22, g, for example, the value of the redistribution and the delivery code, which are transmitted to the control unit 13. The control unit 13, you send the signal: -; 3; to the regional engine 12, which through the feed mechanism 11 provides movement testing with a given feed. The signal about the end of the feed run is analyzed by the arithmetic logic unit 22. A table supply sub cycle with the product, From the input console through the input unit 2, according to the interrogation signals from the constant input device 14, the product feed rate is entered into the arithmetic logic unit 22, where it is processed and is transmitted to the control unit 15, issuing a signal L to the regulated engine 16, which in turn sets the throttle 17 to the appropriate position, providing the necessary CKopocTF., table movements with and healthy -lee1m. The recess of the table table with the product is provided by the product feed unit 26, and the amount of movement is determined by the installation of the stops on the machine table. Subcycle editing grinding wheel. The permanent storage device 14, via the block of output commands 20, outputs a signal to the dressing unit 19, while allowing the diamonds to be moved and the circle to be edited with the given parameters. The signal from the final switch-n, located in the group of signaling bodies 24, which characterizes the end of two: diamond, goes through the block of answers 23 to the arithmetic logic unit 22 for the purpose of analysis. When the signal from the device 14 to the dressing unit 9, the diamonds return to the 3 initial position. Podtikl 1teleni. When the table with the product is moved from the grinding zone to the reverse position, the limit switch (included in the group of signaling organs 24) is pressed, the electrical signal through the response unit 23 is fed to the arithmetic logic unit, 22, where it is anadized, and the permanent memory The device 14 generates an electrical signal through the block of output commands 20 to the block of division 10, which provides for the separation disk. At the end of the division, the end of division signal is passed through the block of responses 23 to the device 14. The listed subcycles in various combinations provide any necessary technological scheme of processing. The permanent storage device 14 contains the program of operation of the machine and the remaining units of the control system. riporparviMa may branch depending on the state of signal 24, i.e. the signals received from the response block 23 and the state of the ne :: switches of the input console, i.e. signals received from input unit 25. Signals from blocks 23 and 25 are sent to arithmetic logic unit 22, where they are processed using logical operations. The arithmetic logic unit 22 also performs a series of arithmetic operations for recalculating dimensional information, which makes it possible to significantly reduce the number of predetermined dimensional parameters. The device 14 generates, via the block of output commands 20, signals to the executive organs of the machine 21 at the right moments with unnecessary delays, which is ensured by the program of the persistent storage device 14 and the delay subroutine

Claims (1)

Claim A slot grinding machine containing a block of output commands, a block answer- -> < machine tool, input unit, control unit, adjustable vertical grinding wheel feed engine and product feed unit, characterized in that, in order to increase grinding performance through the use of a flexible processing cycle, it is equipped with an adjustable choke, an adjustable product feed motor, an engine control unit , arithmetic logic device and read-only memory, the first output of which is connected through a control unit and an adjustable motor with an adjustable throttle, the second output connected to the block of output commands, and the third output to the first input of the arithmetic logic device, the second input of which is connected to the output of the machine response block, and the output to the input of the permanent storage device.