KR20110018490A - Matrix type tool magazine and method for controlling transfer speed according to tool - Google Patents

Abstract

PURPOSE: A tool magazine capable of controlling the transfer speed of a tool and a method thereof are provided to improve the stability of a mechanism by controlling the transfer speed of a gripper holding a tool. CONSTITUTION: A tool magazine capable of controlling the transfer speed of a tool comprises a servo motor(14), an input unit(16), a display unit(17), and an NC(Numerical Control) part(15). The servo motor drives a gripper(13). The input unit is to input the number, type, and port number of a tool. The display unit offers an interface screen for displaying the types of tools accessible to each tool port(11) and the number and type of the actually received tool. The NC part reads the status information of a tool port from a storage and compares the read information with the specification information of a tool. If a tool is large or heavy, the NC part controls the feed value of the servo motor to transfer the gripper at low speed.

Description

TOOL MAGAZINE AND METHOD FOR MAKING A TOOL'S FEED SPEED ADJUSTMENT

The present invention relates to a tool magazine of a machine tool, and more particularly, to a tool magazine and a method thereof capable of adjusting the feed speed according to various tools of the tool magazine.

In general, a machine tool is a machine for processing a variety of metal / non-metal workpieces to the desired shape and dimensions using a suitable tool (tool).

Machine tools for this purpose are provided with a separate tool magazine (Tool Magazine) that can be equipped with a number of tools for machining, which is usually equipped with various tools having various sizes or shapes according to the purpose and shape of the machining It is installed to select and transfer the desired tool during the machining process.

Conventional tool magazines may be in various forms such as chain, circle, matrix, etc. Recently, in order to efficiently store a plurality of tools, matrix tool magazines for receiving tools in matrix-type holders have been used.

1 is a plan view showing a conventional matrix tool magazine.

The conventional matrix tool magazine 1 is provided in a port plate 1a in which a plurality of tool ports 1b are arranged in a matrix form, and has a structure in which tools for machining are accommodated in each tool port 1b. .

In addition, a gripper 1c is provided to grip the tool housed in the port plate 1a, and the gripper 1c is transported in the transverse direction or the longitudinal direction along the horizontal feed shaft and the vertical feed shaft slide. It is configured to enable access to the desired tool.

By the way, the conventional matrix type tool magazine 1 is set so that the feed speed of the tool magazine may operate at a low speed in accordance with a heavy tool. Therefore, when the work is performed with a light tool, the tool change time is relatively late, and thus there is a problem that the cycle time is long.

On the contrary, the feed speed of the tool magazine is set according to the general tool, but when the work is performed with a heavy tool or a large tool, the tool may be damaged by the load during the tool transfer.

In addition, when the large tool is mounted in the port of the tool magazine, since it was possible to mount the manual tool after the operator visually checks it in advance, damage to the apparatus may occur due to the misoperation of the operator.

Therefore, the present invention is to solve the above problems, it is possible to automatically determine whether the mounting of a plurality of tool ports in the tool magazine, especially in the case of heavy or large tools to adjust the feed rate to damage the furniture It is an object of the present invention to provide a tool magazine and a method for preventing the same.

In the tool magazine of the present invention for achieving the above technical problem, in the tool magazine provided with a tool port for receiving a plurality of tools (tool) in a machine tool in a matrix form and a gripper for transporting the tool, A servo motor for driving the gripper; An input unit for inputting a tool number and a tool type for a new tool to be added to the input / output port for inputting / outputting the tool, and a tool port number for accommodating the tool; A display unit for providing an interface screen for displaying a tool type for each tool port, a tool number for a tool actually stored, and a tool type; And when the specification information of a tool including a tool number, a tool type, and a tool port of a tool to be stored from the input unit is input, the state information of the input tool port is read from the storage unit to determine whether the specification information of the input tool is the same. After comparing and determining, if the tool type of the tool to be stored is heavy or large, it may include an NC unit for controlling the feed speed of the gripper at a low speed by adjusting the feed value of the servo motor.

According to an example of the present disclosure, when the NC unit compares, when the tool type of the tool to be stored is a normal tool, the NC unit is determined to be the same regardless of the state information of the tool port. If the tool type is a heavy tool, the status information of the tool port is determined to be the same only when heavy. If the tool type of the tool to be stored is a large tool, the status information of the tool port is large. Only judge if it is the same.

On the other hand, the method of the present invention for achieving the above technical problem, in the method for transferring the tool to a gripper movable in the transverse direction or longitudinal direction in a tool magazine containing a plurality of tools (a) A tool to be accommodated in the input / output port of the tool magazine is additionally installed, and receiving at least a tool number of the tool, a tool type, and a tool port number to receive the tool as specification information of the mounted tool; (b) reading state information of the input tool port from a storage unit and determining whether the tool type is the same as the tool type in the specification information of the input tool; And (c) instructing to receive the tool to be stored in the tool port when the status information of the tool port read from the storage unit is equal to the tool type of the received tool as a result of the determination; And (d) controlling the feed rate of the gripper at a low speed by adjusting the feed value of the servo motor when the type of tool to be stored is heavy or large, and then feeding the tool.

According to an example of the present invention, the step (b) determines that the tool type of the tool to be stored is the same regardless of the status information of the tool port when the tool type is a normal tool, and the tool of the tool to be stored. If the type is a heavy tool, it is determined that the status information of the tool port is heavy only. If the tool type of the tool to be stored is a large tool, the status information of the tool port is large. It is desirable to judge only if it is the same.

As described above, according to the present invention, the tool port of the tool magazine can be selectively accommodated according to the tool characteristics (type), thereby increasing the mechanical stability.

In addition, the tool magazine can be installed on the screen without checking the installation of a plurality of tool ports on the screen without the operator's manual work.In the case of heavy or large tools, the feed speed can be reduced to prevent damage to the furniture. There is.

Hereinafter, a tool magazine according to an exemplary embodiment of the present invention and a method of controlling a feed speed of a tool using the same will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing a configuration of a tool magazine according to an embodiment of the present invention, and is an exemplary view showing a tool magazine management screen output to a display unit according to an embodiment of the present invention.

First, referring to FIG. 2, a tool magazine according to an embodiment of the present invention includes a port plate 10 for accommodating a plurality of tools and a gripper 13 for holding a tool accommodated in the port plate 10. ), The servo motor 14 for driving the gripper 13, the NC unit 15, the input unit 16, and the display unit 17 for overall control of the operation thereof.

The port plate 10 has a plurality of tool ports 11 arranged in a matrix form for accommodating a plurality of tools, and an input / output port 12 for selectively inputting and outputting a tool to be stored on one side or used for processing is provided. It is prepared.

According to this embodiment, the plurality of tool ports 11 are given unique identification numbers that can be identified, and their sizes and types vary depending on the tools to be stored therein. Therefore, the type of tool which can be accommodated for each tool port 11 can be designated.

For example, a heavy tool must be a rigid tool port 11 capable of supporting loads compared to a light tool, and large tools are larger than ordinary tools, so Since the size must be large, the tool port 11 can only be changed depending on the type of tool.

Therefore, the plurality of tool ports 11 provided in the port plate 10 are provided differently depending on the type of tool.

The gripper 13 can be moved horizontally or vertically through a horizontal feed shaft and a vertical feed shaft, and grips a tool mounted on the input / output port 12 to transfer to another equipment or to a corresponding tool port 11. To store.

This gripper 13 is driven by the servomotor 14. That is, the feed speed of the gripper 13 is determined according to the feed value degree of the servomotor 14.

The input unit 16 is provided with key operation means for facilitating a user's operation, such as a tool number and a tool type of a tool to be stored, an identification number of the tool port 11 (hereinafter referred to as a "tool port number"), and the like. To manipulate input.

Here, the type of tool refers to the mechanical characteristics of the tool, and can be largely classified into a normal tool, a heavy tool, a large tool, and the like. Such distinct tool types may be provided as a selection menu on the operation panel.

As such, although the input unit 16 may be implemented using a separate operation panel, the input unit 16 is not limited thereto and may be implemented in a touch screen manner on the display unit 17.

The display unit 17 displays the state information on the tool port of each tool magazine through the tool magazine management screen, and displays the information operated through the input unit 16 so as to be visually confirmed.

As shown in FIG. 3, the tool magazine management screen displayed on the display unit 17 is a tool port number, status information for each tool port, and a tool housed in each tool port 11 as information about each tool port. The tool number and the tool type are listed and displayed as related information.

Through this screen, the status information of each tool port and information on the stored tool can be known at a glance, and in particular, it is possible to know in advance whether the tool is stored in each tool port.

For example, in FIG. 3, the state of the tool port number 1 is a normal state in which a normal tool can be mounted, and the tool number stored in the tool port number 1 is T0010 and is a normal tool.

In addition, it can be seen that the tool port number 3 is in a heavy state in which a heavy tool can be stored, and in fact, the tool number stored in the tool port number 3 is T0041 and is a normal tool.

A normal tool can be accommodated when the tool port is in a normal, heavy, or large state, but a heavy tool or a large tool is limited to a case where the tool port is in a heavy or large state.

NC (NUMARICAL CONTROL) unit 15, as shown in Figure 2, as well as control the operation of the gripper 13, servomotor 14, input / display unit 16, 17, as well as the tool in each tool port Is judged whether or not is stored, and controls the feed speed of the gripper 13 according to the type of the tool to be transferred.

For this purpose, the NC unit 15 may store information on a plurality of tools (eg, a tool number and a tool type) to be used for machining in an internal storage unit and information about each tool port (tool port number and each tool port). Tool type) is basically saved and updated to database. Therefore, based on the databased information, the display unit 17 displays and manages the types of tools that can be stored for each tool port and whether or not the tools are stored.

In addition, the NC unit 15, when the specification information of the tool for the tool number, tool port number, tool type, etc. to be stored in the tool magazine from the input unit 16 is input, information about the input tool port number from the storage unit Read and compare the specifications of the entered tool.

The information about the tool port number read out from the storage unit includes at least the type of tool that can be stored in the tool port (hereinafter, 'state of the tool port').

Accordingly, it is determined whether the tool type of the tool to be stored is the same in the state of the tool port read from the storage unit and the specification information of the tool input from the input unit 16.

As a result of determination, if the state of the tool port read from the storage unit and the input tool type are the same, the tool is instructed to be transferred according to whether the tool is stored in the tool port number, and the tool is heavy or heavy. In the case of a large size, the feed value of the servomotor 14 is adjusted to control the feed speed of the gripper 13 at a low speed to feed the tool at a low speed.

On the contrary, if the state of the tool port read from the storage unit and the input tool type are not the same, the NC unit 15 generates a notification for warning this.

According to this configuration, if the tool magazine is heavy or large, the tool magazine checks whether it can be stored on the screen without checking by hand at each tool port provided differently for each tool type. When the tool is gripped and conveyed, the feed rate of the gripper may be adjusted at a low speed to increase the stability of the mechanism.

As such, an operation process of adjusting the feed rate of the tool in the tool magazine according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.

4 is a flowchart illustrating a method of adjusting a feed rate according to a tool in an embodiment of the present invention, and FIG. 5 is a table for describing a state of a tool port that can be mounted according to a tool type in an embodiment of the present invention.

Referring to FIG. 4, as an initial step, the NC unit in the tool magazine checks whether a tool is stored in each tool port (S100).

This may be displayed by tabulating each tool port on the tool magazine management screen of the display unit.

Thereafter, a tool to be stored in the input / output port is additionally mounted (S110), and the specification information of the mounted tool is received from the input unit (S120).

The specification information of the tool includes at least a tool number of the tool to be stored, a tool type, and a tool port number to receive the tool.

Then, the NC unit reads the information about the tool port input in the above process from the storage unit and compares the specification information of the tool received from the input unit with the type of tools that can be mounted in the tool port (S130).

In this case, the same comparison determination is determined based on the type of the tool to be stored and the state information of the tool port to be stored, as shown in FIG. 5.

That is, when the type of the tool to be stored is a normal tool, it can be stored when the tool port is in a normal, heavy, or large state. Therefore, it is determined that the tool port is the same regardless of the state of the tool port. The tool is judged to be the same when the state of the tool port is heavy, and the large tool is judged to be the same only when the state of the tool port is large.

As a result of the comparison, when the specification information of the tool input from the input unit and the state information of the tool port are the same, it is then checked whether the tool is stored in the tool port (S150).

If the specification information of the tool received from the input unit and the state information of the tool port are not the same as each other, a notification for warning this is generated (S160).

In the process of checking whether a tool is stored in the corresponding tool port (S150), if the tool is stored, the tool mounted on the input / output port cannot be stored, thereby generating a warning notification for this (S160), and the tool is not stored. If not, check the type of tool you are storing.

This is to control the feed rate according to the tool type. If the tool type to be stored is a normal tool, the gripper transfers at a normal speed or a desired speed (S160 and S162).

If the type of tool to be stored is a heavy tool, the feed value of the servo motor is adjusted to set the low speed, and then the tool is transported at a low speed (S170 and S172).

If the type of tool to be stored is a large tool, as described above, the feed value of the servo motor is set to a low speed, and then the tool is transferred at a low speed (S180 and S182).

As such, if the newly added tool is a heavy tool or a large tool when it can be mounted in the selected tool port, the feed rate of the gripper is adjusted at a low speed to reduce mechanical impact and increase stability.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

1 is a plan view showing a conventional matrix tool magazine.

Figure 2 is a block diagram showing the configuration of a tool magazine according to an embodiment of the present invention.

3 is an exemplary view illustrating a tool magazine management screen output to a display unit according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method of controlling a feed rate according to a tool in an embodiment of the present invention.

5 is a table for explaining the state of the tool port that can be mounted according to the type of tool in an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: port plate 11: multiple tool ports

12: I / O Port 13: Gripper

14: servo motor 15: NC part

16: input 17: display

Claims (4)

In a tool magazine having a tool port 11 for receiving a plurality of tools in a machine tool in a matrix form and a gripper 13 for transporting the tool, A servo motor (14) for driving the gripper (13); An input unit 16 for inputting a tool number and a tool type for a new tool to be added to the input / output port 12 for inputting / outputting the tool, and a tool port number for accommodating the tool; A display unit 17 for providing an interface screen for displaying the type of a tool that can be stored for each of the tool ports, a tool number of the actually stored tool, and a tool type; And When the specification information of a tool including a tool number, a tool type, and a tool port of a tool to be received from the input unit 17 is input, the state information of the input tool port is read from the storage unit to specify the specification information of the input tool. After comparing and determining the same, the NC unit 15 for controlling the feed speed of the gripper by controlling the feed value of the servo motor 14 when the tool type of the tool to be stored is heavy or large. Tool magazine capable of adjusting the feed rate of the tool, characterized in that it comprises a. The method of claim 1, When the NC unit 15 determines the comparison, If the tool type of the tool to be stored is a normal tool, it is determined that they are the same regardless of the state information of the tool port, When the tool type of the tool to be stored is a heavy tool, it is determined that the same is true only when the status information of the tool port is heavy. When the tool type of the tool to be accommodated is a large tool, the tool magazine capable of adjusting the feed rate of the tool, characterized in that it is determined to be the same only when the status information of the tool port is large. In a method for transferring the tool to a gripper movable in the transverse or longitudinal direction in a tool magazine that receives a plurality of tools, (a) additionally mounting a tool to be stored in the input / output port of the tool magazine, and receiving at least a tool number of the tool, a tool type, and a tool port number to receive the tool as specification information of the mounted tool; (b) reading state information of the input tool port from a storage unit and determining whether the tool type is the same as the tool type in the specification information of the input tool; And (c) instructing to receive the tool to be stored in the tool port when the status information of the tool port read from the storage unit and the tool type of the received tool are the same as the result of the determination; And (d) adjusting the feed value of the servo motor to control the feed speed of the gripper at a low speed if the type of tool to be stored is heavy or large and then feeding Method for controlling the feed rate of the tool in the tool magazine, characterized in that it comprises a. The method of claim 3, In step (b), If the tool type of the tool to be stored is a normal tool, it is determined that they are the same regardless of the state information of the tool port, When the tool type of the tool to be stored is a heavy tool, it is determined that the same is true only when the status information of the tool port is heavy. If the tool type of the tool to be accommodated is a large tool (large), the method is determined to be the same only if the status information of the tool port is large, characterized in that the tool magazine can be adjusted to the feed rate of the tool.

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