KR102633846B1 - Automatic Lathe Control System and the method for Productivity Improvement of Multi-Variety Small Volume Products - Google Patents

Abstract

The present invention relates to an automatic lathe control system for improving the productivity of small-variety mass production as well as multi-variety small-production products. More specifically, it relates to a proximity sensor and timer consisting of numerical memory storage (using a memory input device) and a button to automate it. This relates to an automatic lathe control system for improving productivity of high-mix, small-quantity production products that can automatically control the lathe using .

Description

Automatic Lathe Control System and the method for Productivity Improvement of Multi-Variety Small Volume Products}

The present invention relates to an automatic lathe control system for improving the productivity of small-variety mass production as well as high-variety, small-scale production. More specifically, it relates to numerical memory storage (memory input device) for application to small-variety mass production as well as high-variety, small-scale production. This is about an automatic lathe control system for improving the productivity of high-mix, small-quantity products that can automatically control the lathe using a proximity sensor and timer consisting of an automation button.

The history of Korean machine tools began in 1970 and continues through the process of changing from manual lathes, milling, and grinding machines to CNC technology and automatic systems, and continues to this day.
Until now, it has been classified into two types: general-purpose lathes, which are operated manually, and CNC lathes, which are programmed directly by workers using G-code.
Technicians who have not received training in small-scale production or program design cannot perform CNC work, so they have no choice but to work in a one-to-one manner, with one person using a general-purpose lathe.
Based on what we have heard, seen, and actually experienced at the general-purpose lathe A/S site for 30 years, and what we have felt and learned while encountering the difficult and difficult work sites of workers, we have carried out the following development.
Even beginners who are not technicians can input the By developing an algorithm using a capable touch panel, sensor, and AC sub, an NC system was developed that enables mass production from small quantity production and allows one person to operate multiple machines instead of just one.
Additionally, we developed a system equipped with the Raid Human Touch NC automation program. In addition, it is a system that can use general-purpose lathes and CNC lathe functions with a single S/W, and is expected to bring major changes to the machine tool market in the future by applying a completely different system that is groundbreaking in the history of machine tools.
Meanwhile, manual machine tools are optimized for small-quantity production of a large variety of products, but their competitiveness in terms of delivery time, delivery price, and labor costs continues to decline.
In addition, productivity declines due to difficulties in securing new personnel (foreigners, etc.) and the aging of technical personnel.
Therefore, in order to improve competitiveness, learning the programming of automated equipment is essential, but in most companies engaged in the machinery and metal manufacturing industry, productivity continues to decline due to limitations in investment costs, difficulties in securing manpower capable of learning programming, and aging. It is happening.

The present invention was devised to improve the above-mentioned problems. The basic operation of the present invention includes the steps of the control unit moving the X-axis and Y-axis respectively to move the machine work origin; On the main screen or work screen, pressing each screen corresponding to the continuous work or the step desired by the operator, displays on the display device to perform the continuous work or the step desired by the operator, including the step of displaying the continuous work or the step desired by the operator. A step of displaying on a display device to perform work; the control unit can receive input from the operator and set the machine origin on the work main screen, and if a machine origin movement issue occurs, displaying an origin movement screen; The control unit repeatedly displays the center and drill forward and backward on the center and drill setting screen of the display device, and when the desired dimension is reached after operating the center and drill, returning to the set machine origin and displaying it; and comparing the input value with a normal value to prevent input mistakes made by beginners among the workers and issuing an alarm through a display device.
On the home task setting screen of the display device, the control unit performs the following steps: 1) receiving an input value for first moving according to 2) Completing the forward and backward movements of the It further includes.
On the outer diameter setting screen of the display device, the control unit recognizes and moves an input value as either a roughing amount or a reverse cutting amount as a movement position on a certain axis; If the machine origin movement issue occurs again and the 1 origin menu is pressed, the center drill 1 origin is controlled to move to X (0,0) and Y (0,0) and displayed on the display device.
The present invention includes a control unit capable of storing a numeric memory using an internal memory input device and automatically controlling the raid using a proximity sensor consisting of an automation button and a timer; and an alarm unit that provides an alarm to prevent input mistakes made by beginners among workers. When one person operates multiple pieces of equipment at the same time, information about the equipment is alerted to the worker.
The control unit moves the machine work origin in the After moving with the handle or manually, if you press the 1 origin, it is controlled to immediately move to the 1 origin, X (0,0), Y (0,0).
The control unit gradually changes the color of the button according to the processing order to a certain standard and fills it, or divides the results according to the work order into multiple colors and displays and stores them. In order to prevent beginners from making input mistakes, the stored information is stored on the beginner's terminal. (Alarm if different compared to the stored beginner input standard information to prevent beginner input mistakes)
The control unit provides an alarm to prevent beginners from making input mistakes.
In the step of notifying the completion signal through the display device after the worker completes the work, in order to prevent input mistakes made by beginners among the workers, when one person operates multiple pieces of equipment at the same time, a mistake is detected by the worker regarding the equipment. Only the alarm step is included;
The present invention includes a control unit capable of storing a numeric memory using an internal memory input device and automatically controlling the raid using a proximity sensor consisting of an automation button and a timer; Including an alarm unit that provides an alarm to prevent input mistakes made by beginners among workers, when one person operates multiple pieces of equipment at the same time, it alerts the worker with information about the equipment.
The control unit gradually changes the color of the button according to the processing order to a certain standard and fills it, or divides the results according to the work order into multiple colors and displays and stores them. Beginner input standard information is stored to prevent beginners from making input mistakes. If it is different compared to , an alarm is generated.
The control unit provides an alarm to prevent beginners from making input mistakes,
Even beginners can easily model 3D objects by providing visualization of 3D coordinates on the display unit that displays objects on the screen in 3D virtual space and enabling control of 3D objects with simple operations.
The system of the present invention required for this purpose consists of the following components.
(1) Control unit: This is a control unit that stores numerical memory using an internal memory input device and automatically controls the raid using a proximity sensor and timer consisting of an automation button.
(2) Alarm unit: This is the part in charge of alarms to prevent beginners from making input mistakes, and operates in conjunction with the control unit. The alarm unit is designed to sound an alarm only on equipment where a beginner's mistake is detected.
(3) Display unit: This is a part that displays objects in 3D virtual space on the screen, and visualizes 3D coordinates and provides them to the user. This allows even beginners to easily model 3D objects.

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According to one embodiment of the present invention, the lathe can be automatically controlled using a simple operation panel touch screen without programming.
First, only one manual lathe can be operated per person for Y-axis machining, outer diameter machining, inner diameter machining, etc., but the 'Raid Human Touch' developed by the present inventor can operate two to three machines simultaneously depending on the difficulty of the workpiece. Because of this, productivity can be maximized.
Second, since even beginners can begin work after completing simple training, it is possible to overcome difficulties in attracting technical personnel and reduce labor costs.
Third, the invention developed by the present inventor has the advantage that anyone can easily operate it with only a few hours of training, as it is a memory touch method rather than a programming method using G code, from mass production of small varieties to small quantity production of multiple varieties.
Fourth, even beginners can easily perform lathe work by attaching an alarm device to the automatic lathe control system to improve productivity not only for mass production of small varieties but also for products produced in small quantities of many varieties.

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Figure 1 is a diagram showing a sub-alarm setting screen (main touch screen, origin setting screen) according to an embodiment of the present invention.
Figure 2 is a diagram showing a job setting screen according to an embodiment of the present invention.
Figure 3 is a diagram showing an external diameter work setting screen according to an embodiment of the present invention.
Figure 4 is a diagram showing an internal diameter work setting screen according to an embodiment of the present invention.
Figure 5 is a diagram showing a home task setting screen according to an embodiment of the present invention.
Figure 6 is a diagram showing a C task setting screen according to an embodiment of the present invention.
Figure 7 is a diagram showing a center/drill work setting screen according to an embodiment of the present invention.
Figure 8 is a diagram showing an origin storage task setting screen according to an embodiment of the present invention.
Figure 9 is a diagram showing a jog handle SW task setting screen according to an embodiment of the present invention.
Figure 10 is a diagram showing a lathe center and drill work cycle diagram according to an embodiment of the present invention.
Figure 11 is a diagram showing a lathe/external cycle diagram according to an embodiment of the present invention.
Figure 12 is a diagram showing a lathe C work cycle diagram according to an embodiment of the present invention.
Figure 13 is a diagram showing a lathe groove work cycle diagram according to an embodiment of the present invention.
Figure 14 is a diagram showing a lathe/internal cycle diagram according to an embodiment of the present invention.
Figure 15 is a diagram of a home work cycle according to an embodiment of the present invention.
Figure 16 is a diagram of an internal diameter work cycle according to an embodiment of the present invention.
Figure 17 is a diagram of a lathe R (crown) work cycle according to an embodiment of the present invention.
Figure 18 is a diagram of a lathe taper work cycle according to an embodiment of the present invention.

The present invention as described above will be described in detail through the attached drawings and examples.

It should be noted that the technical terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention, unless specifically defined in a different sense in the present invention, should be interpreted as meanings generally understood by those skilled in the art to which the present invention pertains, and are not overly comprehensive. It should not be interpreted in a literal or excessively reduced sense. Additionally, if the technical term used in the present invention is an incorrect technical term that does not accurately express the idea of the present invention, it should be replaced with a technical term that can be correctly understood by a person skilled in the art. In addition, general terms used in the present invention should be interpreted according to the definition in the dictionary or the context, and should not be interpreted in an excessively reduced sense.

Additionally, as used in the present invention, singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the invention, and some of the components or steps are included. It may not be possible, or it may include additional components or steps.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of the reference numerals, and duplicate descriptions thereof will be omitted.

Additionally, when describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted. In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the attached drawings.

In the present invention, as shown in Table 1 below, the AC motor specifications of the

We developed and applied a PCB board with forward speed, reverse speed, reverse speed settings, and reverse deceleration setting data memory so that it can be operated with a simple touch of the shelf display device.
In addition, the purpose is to provide an automatic lathe control system to improve the productivity of small-scale production products as well as mass production of small products that can design parts and design jigs for the application of X- and Y-axis AC motors that meet lade specifications.
To this end, the present invention includes a control unit capable of storing numerical memory using an internal memory input device and automatically controlling the raid using a proximity sensor and timer consisting of an automation button; Including an alarm unit that provides an alarm to prevent input mistakes made by beginners among workers, when one person operates multiple pieces of equipment at the same time, not only mass production of small varieties but also small quantity production of various types to alert the operator to information about the equipment. We provide an automatic lathe control system to improve product productivity.
That is, in order to prevent beginners from making input mistakes, an alarm is provided in case of differences compared to the stored beginner input standard information, and a 3D object modeling education system including a display unit that displays objects on the screen in a 3D virtual space is provided. According to the present invention, even beginners can easily model 3D objects by visualizing 3D coordinates and providing control of 3D objects through simple operations.

As another example, in order to prevent beginners' input mistakes, a 3D object modeling education system is provided that provides an alarm in case of differences compared to the stored beginner's input standard information and includes a display unit that displays objects on the screen in a 3D virtual space. . According to the present invention, even beginners can easily model 3D objects by providing visualization of 3D coordinates and enabling control of 3D objects through simple operations. Additionally, by allowing 3D objects to be manipulated using a 3D joystick, even beginners can easily model 3D objects.

<Basic operations>

1. Machine work origin movement moves the X and Y axes respectively.

2. All main screens must be capable of continuous operation 1, 2, 3, 4 and single operation.

3. You can move to each screen from the main screen or work screen.

4. By pressing each screen, it must be possible to work continuously or in 2 or 4 steps as desired by the operator.

5. If you move the center drill 1 origin using the jog handle or manually and press the 1 origin, it moves to the 1 origin X (0,0), Y (0,0).

6. The X, Y center drill origins can be entered as center drills 1, 2, 3, and 4, and the origins of each stage can be indicated with a number (20) at the machine origin.

<Key work methods for each stage>
As shown in Figure 2, work settings (external diameter work, internal diameter work, groove work, C work, center drill, screw work, tae work, R (crown) work, etc.) and machine origin can be set on the work main screen, and each You can move to the settings screen.
(1) External work: This is a machining process in which a tool moves along the outer surface of the workpiece to remove material and create the desired shape. Typically used for turning, drilling, milling and grinding on cylindrical or curved surfaces.
(2) Internal diameter work: This is the opposite of external diameter work, which uses cutting tools to remove material inside the workpiece to create the desired shape. Typically used in drilling, boring and reaming applications.
(3) Groove work: A type of machining work in which a groove is cut into the workpiece. It can be performed using various cutting tools such as turning tools, milling cutters or broaching tools.
(4) C operation: C operation refers to a processing process that cuts a chamfer or bevel on the edge of the workpiece. This type of operation is commonly used in the manufacturing of mechanical parts, gears and bearings.
(5) Center drill: It is a type of drilling tool used to create a small pilot hole in the center of the workpiece. This is often done before using a larger drill bit to create a larger hole.
(6) R (crown) operation: This type of operation refers to a machining process in which a radial or rounded edge is cut into the edge of the workpiece. Commonly used in the manufacture of gears, bearings and other precision parts.

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As shown in Figure 3, on the center drill setting screen, the center and drill are repeated from [forward: 5] to [backward: 1] to reach the desired dimension and return to the origin with the set dimension.
As shown in Figure 4, on the outer diameter setting screen, the button raw material is filled first according to the setting order,

In the Y axis, the retraction position is set to the value other than the roughing cutting amount (0.2mm) -> roughing amount 2mm + reversing cutting amount 0.2mm -> total retraction becomes 2.2mm.

In addition, the roughing depth of cut is called the depth of cut or roughing amount, and roughing refers to removing the mill scale on the surface of the material during cutting processing through rough cutting or machining quickly by increasing the cutting amount when the processing amount is large.

As shown in Figure 5, in the C work setting, the backward speed refers to the speed of moving to the origin after the work is completed.

As shown in Figure 6, the button raw material is filled first according to the home work setting order,
Preferably, 1) it should move according to the X-axis information first and then move according to the Y-axis information.

2) After completing the Y-axis forward 3mm -> backward 3mm -> forward 4mm -> backward 1mm, step up to the installation size.

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In the inner diameter work settings as shown in Figure 7
1) Internal work,
2) Y-axis movement is in the opposite direction of the outer diameter
3) X-axis movement starts from the right end

etc. are included.
FIG. 12, described below, is a diagram of a lathe C work cycle according to an embodiment of the present invention, FIG. 13 is a diagram of a lathe groove work cycle according to an embodiment of the present invention, and FIG. 14 is a diagram of a lathe C work cycle according to an embodiment of the present invention. Shows a lathe and inner diameter cycle diagram, Figure 15 is a groove work cycle diagram according to an embodiment of the present invention, Figure 16 is an inner diameter work cycle diagram according to an embodiment of the present invention, and Figure 17 is an example of the present invention. This is a diagram of a lathe R work cycle according to an embodiment, and Figure 18 is a diagram of a lathe taper work cycle according to an embodiment of the present invention.

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<<Example>>
Figure 8 is a diagram showing the origin storage task setting screen according to an embodiment of the present invention, Figure 9 is a diagram showing the jog handle SW nameplate task setting screen according to an embodiment of the present invention, and Figure 10 is a diagram showing the origin storage task setting screen according to an embodiment of the present invention. It is a drawing showing a lathe center and drill work cycle diagram according to an embodiment, and Figure 11 is a diagram showing a lathe/outer diameter cycle diagram according to an embodiment of the present invention.
Hereinafter, as a basic operation, the control unit moves the X-axis and Y-axis respectively to move the machine work origin; On the main screen or work screen, controlling each screen to perform continuous work or work in steps desired by the operator; If the origin movement issue occurs again, the center drill 1 origin is moved using the jog handle or manually and the 1 origin is pressed to control the movement to the 1 origin X (0,0), Y (0,0). , the control unit receives input from the operator for each core work method desired by the operator, sets the machine origin on the work main screen, and moves it to each setting screen; On the center drill setting screen, the center and the drill are repeatedly moved forward and backward, reaching the desired dimension, and returning to the origin to the set dimension. The description will be divided into six embodiments using the automatic lathe control method for improvement.
This embodiment should not be interpreted as necessarily including all of the above-described steps, and some components or steps may not be included, or may further include additional components or steps. do.
As a preferred embodiment, the present invention includes a control unit capable of storing a numerical memory using an internal memory input device and automatically controlling the raid using a timer and a proximity sensor consisting of an automation button; and an alarm unit that provides an alarm to prevent input mistakes made by beginners among workers. When one person operates multiple pieces of equipment at the same time, information about the equipment is alerted to the worker.
The control unit moves the machine work origin in the After moving with the handle or manually, if you press the 1 origin, it is controlled to immediately move to the 1 origin, X (0,0), Y (0,0).
The control unit gradually changes the color of the button according to the processing order to a certain standard and fills it, or divides the results according to the work order into multiple colors and displays and stores them. In order to prevent beginners from making input mistakes, the stored information is stored on the beginner's terminal. It is delivered as
In other words, in order to prevent beginners from making input mistakes, an alarm is generated if the information is different from the stored beginner input standard information.
As another example, 3D coordinates are visualized and provided on a display unit that displays objects on the screen for a 3D virtual space, and 3D objects can be controlled with simple operations, allowing even beginners to easily model 3D objects.
1. The lathe is equipped with a modeling program that simulates the actual operation of conventional machine tools and is configured to simulate educational machine tools using a network-connected management terminal and education terminal.
The mass production of small varieties as well as the small quantity production of multiple varieties according to the present invention have the advantage that anyone can easily operate them with only a few hours of training because they are memory-based rather than programming-based.
Since even beginners can start work after completing simple training, it is possible to overcome difficulties in attracting technical personnel and reduce labor costs.
For this purpose, the lathe of the present invention includes a carriage for transporting cutting tools, a bite installation tool where cutting tools are installed, a drive unit that installs objects such as Y-axis machining, external machining, and internal diameter machining on the main axis and rotates them by a motor, It is composed of a Z-axis step motor and an X-axis step motor for moving the bite installation tool.
In this embodiment, each component of the mechanism is manufactured in a miniaturized manner based on design data of an actual lathe.
Meanwhile, the driving unit is further provided with a motor driver for controlling the driving of the motor, and a main screen for informing of the operation status of the motor or generating a warning notification in the event of a motor malfunction.
In this embodiment, the main screen can distinguish between a normal state and a warning notification state.
In addition, the main screen with the above functions is also provided for the Z-axis step motor and the X-axis step motor, respectively, and the Z-axis step motor side and the
For example, the present invention developed and implemented a special alarm system that can quickly detect and respond to abnormal situations that may occur during lathe work as an autonomous task execution AI attached to a lathe. The system uses sensors to detect anomalies during lathe operation and trigger a beep or message to alert the operator. Additionally, a safety lockout menu is installed so that operation can be stopped immediately if a problem occurs with the equipment. These features ensure operator safety and minimize the risks associated with lathe work.
(Here, the safety lock menu allows the operator to select a locking interface that ensures appropriate safety according to his or her skill level - locking the operation menu for experienced or highly skilled users), and also allows the operator to detect and correct mistakes or inexperienced movements. An automatic correction function has been implemented.)
When operating an automatic lathe, the control unit moves the X-axis and Y-axis to adjust the origin of machine work, and the operator can control continuous work or step work using the main screen or work screen. If there is a problem with moving the origin, the control unit can move center drill 1 to X(0,0), Y(0,0) by pressing the jog handle or manually pressing origin 1. The machine origin can be set on the main screen and the control unit can move to each setting screen as desired.
In order to improve productivity in small-type mass production as well as multi-type small-scale production, you can use an automatic lathe control method that repeats the back and forth movement of the center, drills on the center drill setting screen until the desired size is reached, and then returns to the set size.

Overall, the various components and functions of an automatic lathe are designed and configured to work seamlessly together, enabling efficient and effective production of a variety of small lot products.
2. Meanwhile, the present invention proposes introducing an automatic correction function that can detect and compensate for operator errors or immature actions. This function is intended to allow even inexperienced workers to easily operate the automatic lathe.
The Auto Calibration feature in the Safety Lockout menu uses a variety of sensors to detect errors or inexperienced operations and make appropriate corrections to avoid compromising the integrity of the workpiece. The system is designed to be safe in advance to detect and correct workpiece placement, tool positioning, and other errors that may occur during automatic lathe operation.
This feature is useful for reducing the risk of errors or mistakes that could lead to workpiece loss or machine damage. It also ensures consistency and accuracy of work, making it easy to achieve the desired results.
In conclusion, the introduction of an automatic compensation function is an important step in making automatic lathe systems more efficient and effective. It will help reduce the risk of errors or mistakes, ensure consistency and accuracy, and make the system easier to use even for inexperienced workers.
For example, there is no need to program tool path data for moving tools, which is a prerequisite for operating a machine tool, so even general workers without programming training can easily operate it.
When programming the tool movement path based on the design and design values of small-type mass production as well as multi-type small-production products, it was not possible to input numerical values that are not mathematically defined, such as arbitrary free curves, but according to the input device according to the present invention, Tools can be moved in an arbitrary direction that is not numerically determined by simple memory manipulation, and not only mass-produced small varieties, but also small-scale production products of various varieties are visually pleasing, comfortable to look at, and in a familiar form. can be manufactured.
In addition, even during molding work, continuous work is possible by moving the data input device (memory input device) to a location (such as the machine origin) that does not interfere with the operator's line of sight.
As an example, as an autonomous task execution AI, we developed and implemented an easy-to-use interface for beginners to operate an automated lathe system. This interface allows operators to choose the appropriate interface based on their skill level. The interface is designed to be user-friendly, intuitive and easy to understand, providing clear and concise instructions that guide users through each step of the process. (At this time, AI's learning function is used to learn the beginner's work records from scratch and provide them in a database)

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Additionally, the system of the present invention includes additional features such as visual aids, input validation, and real-time feedback to prevent errors and ensure correct operation of the machine. Overall, this interface aims to minimize operator errors, improve productivity and ensure a safe and efficient work environment.
3. Currently, numerical control (NC: NUMARICAL CONTROL) of machine tools for cutting processing is progressing rapidly.
Recently, machine tools with computer numerical control (CNC: COMPUTER NUMERICAL CONTROL), which further develops numerical control by automatically controlling the machine tool using a computer equipped with a numerical control program, are rapidly becoming popular.
Moreover, computer numerical control machine tools are operated by numerical control programs, so a skilled CNC programmer is required, and the CNC programmer must program Y-axis machining, external machining, internal diameter machining, etc.
On the other hand, in the present invention, when a machining pattern is selected on the graphic screen when creating a program such as Y-axis machining, external machining, and internal machining on an NC machine tool, the machining parameter items required for the selected machining pattern are displayed on the screen, allowing the operator to enter the corresponding parameter items. Allows you to create a program by entering only values.
By doing this, a beginner who is not familiar with programming commands can create a machining program just by looking at the touch screen. This not only prevents writing errors when writing a machining program, but also shortens the machining program writing time.
The machining program input screen is displayed through the main screen upon request for displaying a program input screen such as Y-axis machining, external machining, and internal machining, and the program is created when machining information including machining pattern selection and machining parameter values is input. It includes an automatic lathe control unit that automatically generates a processing program according to the input processing information using an information table.
The processing program can be transferred to a CNC device and instructed to work accurately according to the values stored in the memory of the present invention.

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To this end, the automatic lathe control unit may include a program creation information table in which commands corresponding to each of a plurality of machining parameters required for machining the plurality of machining patterns are mapped for each of the plurality of machining patterns.
4. By setting the reference value of the displacement sensor to the machine origin information, the movement of the machine tool moving relative to the origin of the object for Y-axis machining, external machining, internal machining, etc. can be output as a displacement sensor value, thereby determining the movement speed of the machine tool. and processing time can be analyzed, and the processing status can be accurately analyzed by calculating the processing progress rate and processing completion time.
In addition, the sensor value can be confirmed as a machining path through the display stage, and the machining shape of the object being processed can be confirmed based on the machining path, so the machining status can be visually confirmed, thereby increasing the efficiency of monitoring.

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The origin information calculation step is to calculate machine origin information. The distance difference between the machine reference point of the machine tool measured in the reference point measurement step and the machine origin of the processing object measured in the origin measurement step is calculated to provide the machine origin information. Measure. That is, in the origin information calculation step, the distance difference between the machine reference point of the machine tool (lathe) measured in the reference point measurement step and the machine origin of the processing object measured in the origin measurement step can be corrected by calculation by an algorithm. .
5. In order to determine the transfer speed and transfer distance of the machine through the rotational movement of the lathe's motor, when a return to origin request occurs to match the position recognized by the motion control device with the actual position of the machine, a return to origin operation is performed. After initializing the current position to 0, the motion profile generator generates a position/velocity profile and accelerates the driving speed of the motor to the set home return speed.
Here, the profile moves to the work main screen, center drill setting screen, outer diameter setting screen, and C work according to the characteristics of the work. This is information that stores numerical values related to settings, home work settings, internal work settings, etc.
Afterwards, when the origin return speed is reached, the motion profile generator drives the motor at a constant speed and outputs an origin signal detection allowable signal to the position and speed detector to switch to the origin signal detection permitted state.
Therefore, by eliminating the origin return low-speed section, the origin return execution time is reduced to minimize initialization time, and productivity is improved by reducing manufacturing costs by not using the approximate origin sensor, and by moving directly to the positioning point after origin detection, unnecessary It has the effect of preventing acceleration/deceleration operation.
Meanwhile, the present invention relates to an automatic lathe control system for mass production of small varieties that can be easily used by beginners as well as to improve productivity of small quantity production products of many varieties.
When a return to origin request occurs to match the position recognized by the motion control device with the actual position of the machine, the current position is initialized to 0 before performing the return to origin operation, and then the motion profile generator generates a position/velocity profile. Thus, the driving speed of the motor is accelerated to the set home return speed. This has the effect of minimizing initialization time, improving productivity, and preventing unnecessary acceleration and deceleration operations.
The automatic control system according to the present invention is designed to be attached to a manual lathe and operated as an NC lathe, can be simply operated by an operator, and is economical because one person can operate multiple pieces of equipment simultaneously.
In addition, the system can automatically control the raid using a proximity sensor consisting of a memory storage device and an automation button, an electronic clutch, and a timer, which minimizes initialization time, improves productivity, and prevents unnecessary acceleration and deceleration operations. There is. Additionally, it provides interfaces and modules for remote monitoring, enabling real-time monitoring and management of the production process.
The goal of the present invention is to improve competitiveness by improving productivity through the distribution of optimized NC equipment in a small-scale production system of small varieties as well as mass production of small varieties.
The manual lathes currently used by urban small-scale artisans and small businesses can only operate on one piece of equipment per worker, making it difficult to break away from the method that focuses on small-quantity, high-mix production.
In addition, due to the limitations of investment costs due to the introduction of CNC lathes and the large amount of time and cost required to hire an operator and learn the operation method, workers can simply operate it, and one person can operate multiple pieces of equipment at the same time. An automatic control system that can continuously grow through operation is needed.
Accordingly, in order to improve the competitiveness of companies that own manual lathes, the present inventor developed a control system that can be attached to a manual lathe and operated as an NC lathe, and developed a raid (manual lathe) to increase maximum efficiency at minimum cost. We seek to develop and distribute an automatic control system for
This will contribute to increasing the competitiveness of urban small and medium-sized enterprises and improving the productivity of beginners in the small-quantity, multi-product production system.
In addition, as another embodiment, a special alarm system can be introduced to detect abnormal situations that occur during lathe work and respond quickly.
For this purpose, sensors are used to detect abnormal signs that occur during lathe work and generate warning sounds or messages in response.
Additionally, safety locks are installed to allow workers to stop work immediately if a problem occurs with the equipment during work.
In addition, as another embodiment, an interface that even beginners can easily use is developed. Before workers begin lathe work, they can select an interface that matches their skill level. For example, it provides a simple interface for beginners and a complex interface for experts, and workers can select and use the interface that suits them. In addition, an automatic correction function is introduced that can detect operator errors or inexperienced movements and compensate for or respond to them.
For example, in one embodiment, the present invention includes, as a basic operation, the control unit moving the X-axis and Y-axis to move the machine work origin; On the main screen or work screen, pressing each screen corresponding to the continuous work or the step desired by the operator, displays on the display device to perform the continuous work or the step desired by the operator, including the step of displaying the continuous work or the step desired by the operator. A step of displaying on a display device to perform work; the control unit can receive input from the operator and set the machine origin on the work main screen, and if a machine origin movement issue occurs, displaying an origin movement screen; The control unit repeatedly displays the center and drill forward and backward on the center and drill setting screen of the display device, and when the desired dimension is reached after operating the center and drill, returning to the set machine origin and displaying it; and comparing the input value with a normal value to prevent input mistakes made by beginners among the workers and issuing an alarm through a display device. For example, mistakes can be prevented by comparing the beginner's input with pre-stored input values.
On the home task setting screen of the display device, the control unit performs the following steps: 1) receiving an input value for first moving according to 2) Completing the forward and backward movements of the It further includes.
On the outer diameter setting screen of the display device, the control unit recognizes and moves an input value as either a roughing amount or a reverse cutting amount as a movement position on a certain axis; If the machine origin movement issue occurs again and the 1 origin menu is pressed, the center drill 1 origin is controlled to move to X (0,0) and Y (0,0) and displayed on the display device.
The step of alarming to prevent input mistakes by the beginner further includes, when one person operates multiple pieces of equipment at the same time, alarming only the equipment in which a mistake is detected to the operator.
In addition to this, the automatic lathe control system can be supplemented by developing additional functions.
For example, when a tool breaks during work or a problem occurs during operation, there are methods such as developing a function to monitor the status of the device in real time to warn the worker or automatically stop the work.
In addition, safety functions such as predicting dangerous situations that may occur while workers are working and stopping work in advance can be added.
The automatic lathe control system can be developed into a more expandable form. For example, scenarios to respond to various problems that arise during work can be set and saved in advance.
In the above scenario, as a basic operation, the following steps are stored in order: machine work origin movement, continuous operation, single action operation, origin movement, and numbers.
Alternatively, in the detailed scenario or external diameter setting screen for the process of reaching the desired dimension and returning to the origin to the set dimension by repeating the forward and backward movement of the center and the drill using the core work method of each stage, the backward position on the Y axis is the roughing cut amount. This refers to a detailed scenario for machining the cutting amount more quickly when the machining amount is above a certain level by using the set value as rough cutting amount, reverse cutting amount, etc.
In one embodiment, an automatic lathe may introduce a special alarm system to detect and respond to abnormal situations that may occur during lathe work. When the worker starts work, the sensor operates, and during work, the sensor detects abnormalities and the system generates a warning sound or message, and the worker can check/take action. Additionally, safety locks are installed to allow workers to stop work immediately if a problem occurs with the equipment during work.
In the present invention, when the worker starts work, the sensor operates, and during work, the sensor detects abnormal signs, the system generates a warning sound or message, and the worker can check/take action. If a problem occurs during work, the operator can stop work through the safety lock and release the lock after requesting release.
These functions ensure worker safety and minimize risks occurring during work. In addition, we have developed an interface that makes lathe work easy to use even for beginners, allowing the operator to choose according to his or her skill level. Workers can select and use an interface that suits them, and an automatic correction function is also introduced to detect operator mistakes or inexperienced movements and compensate for or respond to them. These features allow automatic lathes to perform a variety of tasks and increase productivity.
In another embodiment, various components and functions of an automatic lathe work together, and a special alarm system can be introduced to detect and respond to abnormal situations that may occur during lathe operation. The control unit moves the X and Y axes to adjust the origin of machine work, and the operator can control continuous work or step work using the main screen or work screen. Additionally, the control device can move to each setting screen as desired, and if there is a problem with moving the origin, you can manually press the jog handle or adjust the origin.
Automatic lathes can perform a variety of tasks, and to improve productivity in small-scale mass production as well as large-scale small-scale production, the center repeats back and forth movement, drills on the center drill setting screen until the desired size is reached, and then drills to the set size. A returning automatic lathe control method can be used. This can increase productivity and enable efficient and effective production of a variety of small lot products.
Additionally, a special alarm system can be introduced to detect abnormal situations that occur during lathe work and respond quickly. For this purpose, sensors are used to detect abnormal signs that occur during lathe work (e.g., when the value exceeds the value stored in the profile) and generate a warning sound or message in response. Additionally, safety locks are installed to allow workers to stop work immediately if a problem occurs with the equipment during work. These functions ensure worker safety and minimize risks occurring during work.

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In addition, automatic lathes have developed an interface that even beginners can easily use, allowing selection based on the operator's skill level. Workers can select and use an interface that suits them, and an automatic correction function is also introduced to detect operator mistakes or inexperienced movements and compensate for or respond to them.

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business necessity
The present invention enhances competitiveness by improving productivity through the distribution of optimized NC equipment in a small-scale production system of small varieties as well as mass production of small varieties.
- Manual lathe distribution status: Among mechanical and metal manufacturing companies (approximately 53,000 companies), approximately 40% (approximately 21,000 companies) have an average of 2 or more machines.
The greatest competitiveness of urban small and medium-sized enterprises was tacit technology (manual technology), but as the manufacturing environment has shifted to a production method centered on automated equipment, competitiveness in delivery times and production costs is declining.
The manual lathes currently used by urban small-scale artisans and small businesses can only operate on one piece of equipment per worker, making it difficult to break away from the small-quantity, high-mix production method.
In addition, due to the limitations of investment costs due to the introduction of CNC lathes and the large amount of time and cost required to hire an operator and learn the operation method, workers can operate it simply, and one person can operate multiple pieces of equipment at the same time. By doing so, you can grow continuously.
Accordingly, in order to improve the competitiveness of companies that own manual lathes, the present inventor developed a control system that can be attached to a manual lathe and operated as an NC lathe, and developed a raid (manual lathe) to increase maximum efficiency at minimum cost. We seek to develop and distribute an automatic control system for
business background
A semi-automatic machine tool (lathe) was developed based on technical know-how accumulated in machine tool (lathe) repair and precision parts manufacturing.
Since its establishment in 1992, the present inventor has been operating a machine tool repair and precision machine parts manufacturing business, and has discovered customer needs for semi-automatic machine tools through field analysis.
In 2015, we developed and completed an automatic control system to be applied to manual cylindrical grinders, and entered the market under the brand 'Grinding Human Touch' in 2017.
It was selected as a supplier (2021) for the ‘Smart Workshop Support Project’ of the Ministry of SMEs and Startups and has a track record of supplying 6 units (approximately KRW 150 million) to 5 urban small businesses.
In 2020, its technology was recognized by the Minister of SMEs and Startups and it was selected as a 100-year small business owner.
Additionally, in 2023, he received the Chairman's Award and the President's Award from the Small and Medium Business Association.
We have promoted sales promotion activities for companies that own cylindrical polishing machines, and have achieved sales of about 40 units (approximately KRW 800 million) since 2017.
By establishing the 'Grinding Human Touch' developed by the present inventor as a process production line at the business, high added value is being created by attracting grinding processing of 'ceramic multi-variety, small-quantity production products' used in the semiconductor production process (annual average of about 300 million won) Achieved sales performance).
Based on the technical know-how accumulated through the development and field introduction of 'Grinding Human Touch' as described above, we also developed an automatic control system for the lathe, which is the most widely used machine tool, in order to maximize economic and industrial ripple effects. do.

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1: Y axis AC motor
2: X-axis AC motor
3: Main axis spindle BOX
4: Feed (speed) BOX
5: Chuck (fixing the workpiece)
6: Front and rear slide unit
7: Tailstock (workpiece center fixation)
8: Left and right slide unit
9: Control S/W and touch panel

Claims (8)

A control unit that stores numerical memory using an internal memory input device and automatically controls the raid using a proximity sensor consisting of an automation button and a timer; It includes an alarm unit that alarms to prevent input mistakes made by beginners among workers, and the control unit gradually changes the color of the button according to a certain standard according to the processing order to fill it, or displays the results according to the work order in a plurality of colors. It is divided and displayed and stored, and compared to the stored beginner input standard information to prevent beginner input mistakes, an alarm is issued if it is different. The control unit alarms to prevent beginner input mistakes, and an object is displayed on the screen for the 3D virtual space. A shelf for improving the productivity of high-quality, small-scale production products that allows even beginners to easily model 3D objects by providing visualization of 3D coordinates on the display unit and enabling control of 3D objects with simple operations. In the automatic control method of a lathe to improve the productivity of small quantity production products using an automatic control system,
As a basic task, the control unit,
On the main screen or work screen, if you press each screen corresponding to continuous work or the stage desired by the operator, the control unit can receive input from the operator and set the machine origin on the work main screen. If a machine origin movement issue occurs, the origin movement screen is displayed. displaying steps;
Moving the X-axis and Y-axis respectively to move the machine work origin;
The control unit repeatedly displays the center and drill forward and backward on the center and drill setting screen of the display device, and when the desired dimension is reached after operating the center and drill, returning to the set machine origin and displaying it; and
Comprising: notifying a completion signal through a display device after the worker completes the work,
In the step of notifying a completion signal through a display device after the worker completes the work,
To prevent input mistakes made by beginners among the above workers,
An automatic lathe control method for improving productivity of small-scale production products of various types, further comprising: when one person operates multiple pieces of equipment at the same time, alarming the operator only about the equipment for which a mistake has been detected.
delete delete delete A control unit that stores numerical memory using an internal memory input device and automatically controls the raid using a proximity sensor consisting of an automation button and a timer;
Including an alarm unit that provides an alarm to prevent input mistakes made by beginners among workers, and alerts the worker with information about the equipment when one person operates multiple pieces of equipment at the same time;
The control unit gradually changes the color of the button according to the processing order to a certain standard and fills it, or divides the results according to the work order into multiple colors and displays and stores them. Beginner input standard information is stored to prevent beginners from making input mistakes. If it is different compared to , an alarm is generated,
The control unit provides an alarm to prevent beginners from making input mistakes,
A variety of products that allow even beginners to easily model 3D objects by providing visualization of 3D coordinates on a display unit that displays objects on the screen in a 3D virtual space and enabling control of 3D objects with simple operations. Automatic lathe control system to improve productivity of small quantity production products. delete delete delete