KR20000046997A - Method for controlling lubrication of high velocity spindle unit - Google Patents

Abstract

PURPOSE: A method is provided to control lubrication of a high velocity spindle unit in order to conduct a process at high speed when power interception occurs for a short time after removing an apparatus. CONSTITUTION: A memory(14) stores the present time data by checking a data(D1) through a timer(T1). Then a system compares the present time data with a prior data(D2). When the difference is within a regular time, an apparatus conducts a process at high velocity. When the difference passes through the regular time, a lubrication unit is continuously pumped to supply a lubricant using a timer(T3) over a time supplying the lubricant to a spindle unit.

Description

High Speed Spindle Unit Lubrication Control Method

The present invention relates to a high speed spindle unit lubrication control method, and in detail, if the time is not enough to determine whether the time is the time lubricating oil by determining the previous operating time of the spindle unit without uniformly performing lubrication control of the high speed spindle unit The present invention relates to a high speed spindle unit lubrication control method, which allows the vehicle to run immediately, and if idle time is re-injected, thereby reducing idling time.

In general, the high speed spindle unit control method is configured to receive the high speed lubrication unit 15 and the spindle run signal 12 in the input / output unit 11 of the machine control unit 10 as shown in FIG. And a memory unit 14 for storing various programs. The spindle run signal 12 is provided through the numerical controller NC.

In a mold or high speed machining machine using such a configuration, a simple repetitive process having a pause time (for example, 4 minutes) after pumping for a certain time (for example, 15 seconds) for lubrication and cooling of the high speed spindle unit during spindle rotation. Is done. At this time, lubricating oil is a high speed spindle oil or turbine oil, which is sent to the head part like a supply line to cool and lubricate.The pipe from the lubricant supply to the spindle head is 8 to 10 meters through the inside of the machine. It is sent with air (0.35 to 0.45Mpa (3.5 sowl 4.5kgf / ㎠)) through the hydraulic pipe of the thinner pipe. Lubrication is supplied to the spindle unit along the long pipe line to the spindle head of the machine, and the user must be aware of this and rotate the spindle at least 15 minutes at low speed when not in use for a long time. Therefore, in order to make a high speed rotation, it is required to wait for 15 minutes or more unconditionally. In this case, there is damage to the spindle unit, so it is inconvenient to use due to the operator's attention and effort, and it is inconvenient to use due to the use of the machine. By repeating, optimum cooling and lubrication are not possible.

An object of the present invention is to perform high-speed processing immediately in case of power interruption for a short time in case of emergency stop or restart of equipment after temporary power off.

Another object of the present invention is to ensure the reliability of the equipment by appropriate lubrication and cooling according to the data according to the measurement of the calorific value for each speed, and to minimize the consumption of high speed spindle oil accordingly.

The present invention as a means for achieving the above object is the first step of reading the current time data when the power is applied to the machine tool equipment and stored in the memory,

A second step of determining whether the time difference is within the time before the lubricant is removed from the spindle head by reading previous time data at the time of initial power-up and comparing it with the current time,

A third step of performing a high-speed machining immediately if the time is within the second step,

A fourth step of continuously supplying lubricating oil to the lubricating unit until the time when the lubricating oil arrives in the spindle unit if the time is exceeded in the second step, and performing the third step,

A fifth step of checking spindle speed data following the third step,

It is to provide a high-speed spindle unit lubrication control method comprising the sixth step of operating by adjusting the lubrication time according to the fourth step.

1 is a conventional high speed spindle unit control configuration,

2 is a block diagram of the present invention,

3 is a flowchart of the present invention,

4 is a flowchart showing a process of performing speed control according to the present invention.

Explanation of symbols for the main parts of the drawings

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram of the present invention. The clock generator 13 is configured to receive the high speed lubrication unit 15 and the spindle run signal 12 in the input / output unit 11 of the machine control unit 10, and to synchronize the clock. And a first timer T1 for generating a periodic time (data) D1 in a high speed lubrication unit control configuration configured to have a memory unit 14 for storing various programs, and a time for the lubricating oil to arrive at the spindle limber. And a second timer T2 for providing (data) D2 and a third timer T3 for providing a lubrication unit intermittent operation time (data) D3. .

3 is a flowchart of the present invention, in which the current time data is read and stored in a memory when power is supplied to the machine tool equipment (S1),

In step S2, when the initial power is turned on, the previous time data is read and compared with the current time to determine whether the time difference is within the time before the lubricant is removed from the spindle head (S2).

Performing a high-speed machining immediately within the time in the step (S2) (S3),

If the time is exceeded in the step (S2) to continuously supply the lubricating oil to the lubrication unit until the time the lubricant arrives in the spindle unit (S4),

Checking the spindle speed data following the step (S3) (S5),

It comprises a step (S6) to operate by adjusting the lubrication time according to the step (S4).

4 is a flowchart showing a process of varying the lubrication time according to the speed data of the present invention, confirming whether the current speed is the first spindle speed SD1 (step S5-1), and checking the first spindle speed ( In the case of SD1), the corresponding operation time data SDD1 is input (S5-11), in step S5-1, it is checked whether the second spindle speed SD2 is the first spindle speed (S5-2). If the second spindle speed is input in step S5-2, the operation time data SDD2 corresponding to the second spindle speed is received in step S5-21. Check whether the spindle speed is SD3 (S5-3) If the third spindle speed (SD3) is received in step S5-3, the corresponding operation time data SDD3 is input (S5-31). If the third spindle speed is not the fourth spindle speed is performed in order to check whether the n-th spindle speed (SDn) (S5-n). If it is not the n-th spindle speed SDn, the step S5-1 is performed. If the n-th spindle speed SDn is performed, the fifth step S5 of receiving the corresponding operation time data SDDn is performed. .

Subsequently, the sixth step S6 includes the step of lubricating the lubrication unit according to the cutting speed (S6-1), and checking until the lubrication unit intermittent operation timer T3 is smaller than the corresponding operation time data SD ( S6-2), checking the time until the operation time data SD is smaller than the timer T1 setting time, and when the operation time data SD is not smaller, performing the initial step S1 (S6-3).

Referring to the operation of the present invention configured as described above with reference to the configuration of Figure 2 and the flowchart of Figure 3, when the power is supplied to the equipment to check the data (D1) through the timer (T1) which is one component of the timer 15 To store the current time data (year, month, hour, minute) in the memory 14. Subsequently, when the initial power is turned on, the old data D2 is read from the memory 14, and the difference with the current new time data D1 is compared, and the difference is a fixed time DD (before the lubricant is removed from the spindle head). Time) (step S2), it allows the equipment to enter high speed processing without waiting time immediately (step S3).

If the time DD has elapsed in the step S2, the lubrication unit is continuously pumped without any down time to supply the lubricating oil to the spindle unit using the timer T3 for a minimum time (data) D3 or more. Is supplied until the supplied time (data) D2 (timer T2 output) is exceeded (step S4).

Then, as shown in step S5 shown in Fig. 5, the command code (data) of the spindle commanded in the machining program is read to read the command speeds SD1-SDn, and the lubricant is variably supplied by the corresponding operating time data SDD1-SDDn. (SD5-1 to SD5-n) (S5-11 to S5-n1).

In accordance with the lubricating oil supply control, the lubrication unit is operated as in the sixth step S6 (step S6-1), until the lubrication unit intermittent operation timer T3 is smaller than the corresponding operation time data SD. Check (step S6-2), check the time until the operation time data SD is less than the timer T1 setting time, and if it is not small, perform the initial step S1 (S6-3). Perform

The present invention described above is not limited to the above-described embodiments and drawings, and various permutations, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, the present invention continuously maintains the performance of the high speed spindle unit, reduces the waiting time of expensive equipment, and automatically checks and operates the equipment even if the user does not pay attention to lubrication of the high speed spindle. By automatically reflecting the amount of lubrication, the quality of precision processed products can be kept stable and users are satisfied with the performance of the product.

Claims (2)

Reading current time data and storing it in a memory when power is supplied to the machine tool equipment (S1); In step S2, when the initial power is turned on, the previous time data is read and compared with the current time to determine whether the time difference is within the time before the lubricant is removed from the spindle head (S2). Performing a high-speed machining immediately within the time in the step (S2) (S3), If the time is exceeded in the step (S2) to continuously supply the lubricating oil to the lubrication unit until the time the lubricant arrives in the spindle unit (S4), Checking the spindle speed data following the step (S3) (S5), High speed spindle unit lubrication control method comprising the step (S6) of operating by adjusting the lubrication time according to the step (S4). The method of claim 1, wherein the step S5 checks whether the current speed is the first spindle speed SD1, and in step S5-1, if the first spindle speed SD1 is the corresponding operation time data SDD1. ) Step (S5-11), the step (S5-2) checks whether the second spindle speed (SD2) is not the first spindle speed in the step (S5-1), the step (S5-2) If the second spindle speed in the step (S5-21) receiving the corresponding operation time data (SDD2), and if the second spindle speed (SD2) in the step (S5-2) is the third spindle speed (SD3) Checking step (S5-3), if the third spindle speed (SD3) in the step (S5-3) receiving a corresponding operation time data (SDD3) (S5-31), if the third spindle speed is Or (S5-n) to determine whether the fourth spindle speed (SDn) by performing the process of checking whether the fourth spindle speed. And if it is not the nth spindle speed SDn, perform step S5-1, and if the nth spindle speed SDn, the high speed spindle unit is adapted to receive the corresponding operation time data SDDn. Lubrication control method.