KR20210111551A - Tool magazine of machine tool and method for operating the same - Google Patents

Abstract

The present invention relates to a tool magazine of a machine tool and an operation method thereof. In accordance with the present invention, first and second storage parts are placed on multiple stages in a vertical direction to replace tools stored in the first and second storage parts with a ram spindle, and then, the first and second storage parts control a rotation direction and an operation sequence of first and second clamping parts and a rotation part such that the two storage parts are selectively or simultaneously rotated through the one single rotation part to exchange a turning tool and a rotary tool, and, accordingly, due to the expansion of the number and types of tools stored in a tool magazine, non-machining time can be minimized to enhance the productivity of a machine tool, the use of space can be maximized through the miniaturization of the tool magazine, costs for the manufacture, maintenance and machining of the tool magazine can be reduced, the stability and reliability of the machine tool can be improved, and convenience for workers can be promoted.

Description

Tool magazine of machine tool and method for operating the same

The present invention relates to a tool magazine of a machine tool and an operating method thereof, and more particularly, in a vertical turning center, a receiving part for accommodating a tool in the tool magazine is formed in multiple stages in the vertical direction to rotate with a turning tool while the ram spindle moves. It relates to a tool magazine of a machine tool capable of easily replacing a tool, and an operating method thereof.

In general, a machine tool refers to a machine used for the purpose of processing a metal/non-metal workpiece into a desired shape and size using an appropriate tool by various cutting or non-cutting methods.

Various types of machine tools, including turning centers, vertical/horizontal machining centers, door machining centers, Swiss turns, electric discharge machines, horizontal NC boring machines, CNC lathes, multi-tasking machines, etc. is being used

Among machine tools, multi-tasking machine means a turning center equipped with a multi-function automatic tool changer (ATC) and tool magazine that performs various machining types such as turning, drilling, tapping, and milling. In the multi-tasking machine, the operator loads the tool required for machining or manually loads the tool into the tool magazine when exchanging it.

In general, various types of machine tools currently used have an operation panel to which numerical control (NC) or computerized numerical control (CNC) technology is applied. Such an operation panel is provided with various function switches or buttons and a monitor.

In addition, the machine tool includes a table on which a workpiece material is seated and transferred for processing the workpiece, a pallet for preparing the workpiece before processing, a spindle that rotates when a tool or workpiece is combined, a tailstock for supporting the workpiece, etc. during processing, a vibration isolator etc. are provided.

In general, in a machine tool, a table, a tool rest, a main shaft, a tailstock, a vibration isolator, etc. are provided with a conveying unit which conveys along a conveying axis in order to perform various processing.

In addition, in general, a machine tool uses a plurality of tools for various processing, and a tool magazine or a turret is used as a tool storage place for storing and storing a plurality of tools.

Such a machine tool uses a plurality of tools for various processing, and a tool magazine is used in the form of a tool storage place storing a plurality of tools.

In addition, in general, a machine tool is provided with an automatic pallet changer (APC, Automatic Palette Changer) in order to minimize the non-working time. The automatic pallet changer (APC) automatically exchanges pallets between the workpiece machining area and the workpiece installation area. Pallets may be loaded with workpieces.

In addition, in general, a machine tool is provided with an automatic tool changer (ATC, Automatic Tool Changer) for withdrawing a specific tool from the tool magazine or receiving it again according to the command of the numerical control unit in order to improve the productivity of the machine tool.

In general, the types of tool magazines used in machine tools, especially machining centers and turning centers, can be divided into two types. One is a drum type tool magazine and a chain type tool magazine.

In addition, the conventionally used automatic tool changer (ATC) is divided into an arm type and an armless type according to a method of clamping a tool.

In general, an armless automatic tool changer (ATC) is a method of exchanging tools provided in a magazine plate of a tool magazine only by movement of a column and a spindle without a separate change arm. It is mainly used in vertical type machining centers or vertical turning centers.

Such a vertical machining center or vertical turning center processes a workpiece with a tool mounted on a ram spindle. Today, various tools need to be accommodated for precision machining or mass production, and due to high-precision and repetitive work, conventional machine tools, especially vertical turning centers, are used as turning tools for turning or rotary tools for rotary machining. Due to the wear and tear of the tool, it is necessary to change the tool frequently.

However, the tool magazine of the conventional machine tool and its operation method are provided with only one type of a turning tool (vertical direction in the case of an inner diameter tool and a horizontal direction in the case of an outer diameter tool) or a milling tool having directionality. As the tool magazine of the machine tool becomes larger as the tool magazine of the machine tool cannot be accommodated, it is not possible to achieve the final miniaturization of the machine tool. there was.

In addition, in the case of a tool magazine of a conventional machine tool and an operating method thereof, when the turning tool and the rotating tool are installed adjacently, a collision may occur due to interference with the workpiece, etc., and in order to prevent such collision, the operator frequently rotates with the turning tool As the tool is replaced, the productivity of the machine tool is reduced due to the increase in non-working time, and there is a problem of causing inconvenience to the operator.

Moreover, the tool magazine of the conventional machine tool and its operating method cannot accommodate various tools to meet the machining program of the machine tool or the purpose of the user, and even if accommodated, the reliability of the machine tool is lowered due to spatial and spatial restrictions and manufacturing cost. There was a problem in that the stability of the machine tool was deteriorated as accurate operation control was not performed.

On the other hand, in order to solve this problem, a tool magazine of a recent machine tool and its operation method are a method for accommodating various tools, and when the vertical turning center moves in the horizontal direction or moves in the vertical direction, the tool in both directions (inner diameter tool or outer diameter tool) All tools) were arranged to have horizontal and vertical directionality.

However, even in this case, since a driving device for rotationally driving the tool accommodating part must be independently provided for each tool accommodating part installed in multiple stages, it is not possible to reduce the size of the tool magazine, manufacturing and maintenance costs are increased, and space There is still a problem in that utilization is reduced, and productivity is lowered because it takes a relatively longer time to change tools.

Therefore, it is possible to drive the tool storage unit for accommodating various types and numbers of tools with one driving device, while accommodating as many types and tools as possible, to achieve miniaturization and to operate without collision or safety accidents due to mechanical interference. There is an urgent need to develop a tool magazine of a machine tool that can be used and an operation method thereof.

Korean Patent Publication No. 10-2007-0066680 Korean Patent Publication No. 10-2016-0109005 Korean Patent Publication No. 10-2019-0083104

The present invention is to solve the above problems, and an object of the present invention is to vertically align the first and second housings in order to replace the tools accommodated in the first and second housings with the ram spindle. The turning tool is arranged in multiple stages, and the first and second housing units adjust the rotation direction and operation sequence of the first clamping unit, the second clamping unit, and the rotating unit to selectively or simultaneously rotate the two receiving units using only one rotating unit. By increasing the number of tools and types of tools stored in the tool magazine, the machine tool productivity is increased by minimizing the non-working time, and space utilization is maximized through the miniaturization of the tool magazine. Provides a tool magazine for a machine tool that can reduce the manufacturing cost and maintenance cost of the tool magazine, reduce the machining cost of the machine tool, improve the stability and reliability of the machine tool, and promote the convenience of the operator will do

In order to achieve the object of the present invention, the tool magazine of the machine tool according to the present invention includes a base part installed in a part of the space in which the ram spindle moves; a first accommodating part rotatably installed in the base part, accommodating a plurality of tools, and rotated by the rotating part; a second accommodating part rotatably installed on the base part while being spaced apart from the first accommodating part in a vertical direction and accommodating a plurality of tools; a first clamping part installed in the first accommodating part to clamp or unclamp the first accommodating part and the second accommodating part; and a second clamping part installed on the base part to clamp or unclamp the second accommodating part and the base part.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the tool magazine of the machine tool includes the rotating part, the first clamping part, and the second clamping part to exchange the tool mounted on the ram spindle. It may further include; a control unit for controlling the operation.

In addition, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the tool magazine of the machine tool is the tool magazine of the control unit when exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the first housing unit. Through control, the base and the second clamping part are clamped by the second clamping part to block rotation of the second housing part, and the first and second housing parts may be separated by the first clamping part. It is unclamped so that only the first accommodating part can be rotated by the rotating part.

In addition, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the tool magazine of the machine tool is the tool magazine of the control unit when exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the second housing unit. Through control, the base portion and the second clamping portion are unclamped by the second clamping portion to allow rotation of the second accommodation portion, and the first and second accommodation portions may be unclamped by the first clamping portion. As the accommodating part is clamped and the rotational force of the rotating part is transmitted to the second accommodating part, the second accommodating part may rotate.

In addition, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, a first body portion rotatably installed in the base portion to rotate by the rotating portion of the tool magazine of the machine tool; a plurality of first gripper parts installed radially at a predetermined angle to the first body part based on the rotation center of the rotating part and clamping the tool by pressing; and a pocket portion formed to be opened to the first body portion at a predetermined angle with respect to the rotation center of the rotating portion in order to exchange the tool accommodated in the second accommodation portion.

In addition, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the second accommodation portion of the tool magazine of the machine tool is spaced apart from the vertical lower portion of the first body portion and a second rotatably installed in the base portion body part; and a plurality of second gripper parts installed radially at a predetermined angle to the second body part based on the rotation center of the rotating part to clamp the tool by pressing.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the control unit of the tool magazine of the machine tool includes a machining program, a first gripper portion of the first accommodation portion and a second gripper portion of the second accommodation portion a data storage unit for storing information on the type and position of the tool accommodated in the unit, the position of the pocket unit, the standby position, and the exchange position; a confirmation unit for confirming a tool type of a machining tool mounted on the ram spindle; a determination unit for determining a replacement tool for exchanging the tool of the ram spindle based on the verification result of the verification unit and the data stored in the data storage unit; The processing tool mounted on the ram spindle is returned to the corresponding gripper unit according to the data stored in the data storage unit, the confirmation unit, and the determination result of the determination unit, and the gripper unit storing the replacement tool is moved to the replacement position. a calculation unit for calculating an operation sequence of a rotating unit, the first clamping unit, and the second clamping unit, and a rotation direction and amount of rotation of the rotating unit; and a command unit for outputting an operation signal to the rotation unit, the first clamping unit, and the second clamping unit according to the result of the calculation unit.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the control unit of the tool magazine of the machine tool is based on the results of the data storage unit, the confirmation unit, the determination unit, the calculation unit, and the command unit. Accordingly, it is analyzed whether the first clamping part or the second clamping part is operating normally, and whether any one of the first gripper part or the second gripper part storing the exchange tool and the pocket part are normally moved to the exchange position. It may further include an analysis unit that generates an alarm when there is an abnormality.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the tool storage direction accommodated in each of the first gripper units and the tool storage accommodated in each of the second gripper units of the tool magazine of the machine tool The directions may be identical to each other.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the angle between the centerlines of each of the first gripper parts of the tool magazine of the machine tool is 2 of the angle between the centerlines of each of the second gripper parts The first gripper part may be disposed on the first body part, and the second gripper part may be disposed on the second body part to double.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, a turning tool is accommodated in each of the first gripper portions of the tool magazine of the machine tool, and the tool is a rotating tool in each of the second gripper portions. can be accommodated.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the first clamping portion of the tool magazine of the machine tool is a first cylinder portion installed in the first body portion; a first rod part installed in the first cylinder part and selectively coupled to a first accommodating part recessed in an upper part of the second body part while reciprocating up and down; and a first sensing unit sensing whether the first rod unit and the first accommodation unit are coupled to each other.

Further, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the second clamping portion of the tool magazine of the machine tool is a second cylinder portion installed on the base portion; a second rod part installed in the second cylinder part and selectively coupled to a second accommodating part recessed in a lower part of the second body part while reciprocating up and down; and a second sensing unit sensing whether the second rod unit and the second accommodation unit are coupled to each other.

In addition, in another preferred embodiment of the tool magazine of the machine tool according to the present invention, the tool magazine of the machine tool is a bearing portion installed between the base portion and the second receiving portion; may further include.

In order to achieve another object of the present invention, a method of operating a tool magazine of a machine tool according to the present invention is a machining for exchanging a machining tool mounted on a ram spindle and an exchange tool housed in the first or second receiving section. storing information on a program, a type of a tool accommodated in the first gripper unit of the first housing unit and the second gripper unit of the second housing unit, a tool position, a pocket position, a standby position, and an exchange position; checking a tool type of a machining tool mounted on the ram spindle; determining an exchange tool to be replaced with the ram spindle according to the machining program; In order to return the machining tool mounted on the ram spindle to the corresponding gripper unit according to the pre-stored data, the confirmation result, and the judgment result, and to move the gripper unit storing the exchange tool to the exchange position, the rotating part, the first clamping part, and the first clamping part; 2 calculating the operation sequence of the clamping unit and the rotation direction and amount of rotation of the rotating unit; sequentially transmitting an operation signal to the rotation unit, the first clamping unit, and the second clamping unit according to the calculation result; The ram spindle moves to the replacement position according to the sequentially transmitted operation signal, returns the machining tool mounted on the ram spindle to the first gripper unit or the second gripper unit, and then the ram spindle moves to the standby position step; operating the first clamping part or the second clamping part to move one of the first gripper part and the second gripper part storing the exchange tool to an exchange position; rotating the first accommodating part or the second accommodating part installed with the gripper part accommodating the exchange tool to an exchange position; and moving the ram spindle waiting in the standby position to the exchange position to exchange it with an exchange tool.

In addition, in another preferred embodiment of the method of operating the tool magazine of the machine tool according to the present invention, the method of operating the tool magazine of the machine tool includes the first method according to the stored data, the confirmation result, the judgment result, the calculation result, and the operation signal. Analyze whether the clamping part or the second clamping part is operating normally, and whether any one of the first gripper part or the second gripper part holding the exchange tool and the pocket part move normally to the exchange position, and if there is an abnormality It may further include; generating an alarm.

Further, in another preferred embodiment of the method of operating the tool magazine of the machine tool according to the present invention, the method of operating the tool magazine of the machine tool is mounted on the ram spindle in the step of operating the first clamping unit or the second clamping unit. When returning the processed tool to the first storage unit and exchanging the replacement tool stored in the first storage unit, the base and the second clamping unit are clamped by the second clamping unit, so that the second receiving unit is Rotation is blocked, and the first accommodating part and the second accommodating part are unclamped by the first clamping part so that only the first accommodating part can be rotated by the rotating part.

Further, in another preferred embodiment of the method of operating the tool magazine of the machine tool according to the present invention, the method of operating the tool magazine of the machine tool is mounted on the ram spindle in the step of operating the first clamping unit or the second clamping unit. When returning the processed tool to the first storage unit and exchanging the replacement tool stored in the second storage unit, the base and the second clamping unit are unclamped by the second clamping unit to unclamp the second receiving unit. rotation is allowed, and the first and second accommodating parts are clamped by the first clamping part so that the rotational force of the rotating part is transmitted to the second accommodating part to rotate the second accommodating part.

A tool magazine for a machine tool and an operating method thereof according to the present invention are arranged in multiple stages in a vertical direction with the first receiving part and the second receiving part in order to replace the tools housed in the first and second receiving parts with a ram spindle, , The first and second accommodating parts adjust the rotation direction and operation sequence of the first clamping part, the second clamping part, and the rotating part, and simultaneously or selectively rotate the two accommodating parts with only one rotating part, so that the turning tool and the rotary tool As it becomes interchangeable, there is an effect that the tool magazine can be miniaturized and compact while expanding the tools mounted on the tool magazine.

In addition, the tool magazine of the machine tool according to the present invention and its operating method have a first accommodating part and a second accommodating part by adjusting the rotation direction and operation sequence of the first clamping part and the second clamping part and the rotating part, so that two As the turning tool and the rotary tool can be exchanged by rotating the housing at the same time or selectively, it is possible to maximize the productivity of the machine tool by storing as many tools as possible in a compact space and reducing the non-working time due to the tool change. It works.

Moreover, the tool magazine of the machine tool and the method of operation thereof according to the present invention are the first clamping part, the second clamping part, and the operation sequence of the rotating part and the rotation amount and the rotation direction of the rotating part are automatically adjusted through the control unit. It promotes convenience, prevents safety accidents that may occur during tool replacement, and maximizes the safety and reliability of machine tools.

In addition, the tool magazine of the machine tool according to the present invention and its operating method according to the present invention selectively or simultaneously rotationally drive the first and second housing units arranged in multiple stages spaced apart in the vertical direction with only one rotating unit, thereby reducing maintenance costs and maintenance. It saves time and has the effect of reducing processing costs.

In addition, the tool magazine of the machine tool and its operating method according to the present invention store a large number of tools and easily replace the turning tool and the rotating tool to quickly replace the tool when the tool is damaged to improve the machining precision of the machine tool, It has the effect of increasing customer satisfaction.

1 shows a perspective view of a tool magazine of a machine tool according to the present invention.
2 shows a partial cross-sectional view of a tool magazine of a machine tool according to the present invention.
Figure 3 shows the configuration of the control unit of the tool magazine of the machine tool according to the present invention.
4 to 11 show a process of exchanging the machining tool mounted on the ram spindle by the tool magazine of the machine tool according to the present invention and the exchange tool stored in the second gripper unit of the second receiving unit.
12 is a flowchart showing a method of operating a tool magazine of a machine tool according to the present invention according to the present invention.

Hereinafter, with reference to the drawings of the tool magazine of the machine tool and its operating method according to an embodiment of the present invention will be described in detail. The embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers refer to like elements throughout.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of description.

The terminology used herein is for the purpose of describing the embodiments, and thus is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprise” and/or “comprising” refers to the presence of one or more other components, steps, operations and/or elements mentioned. or addition is not excluded.

Figure 1 shows a perspective view of the tool magazine of the machine tool according to the present invention, Figure 2 shows a partial cross-sectional view of the tool magazine of the machine tool according to the present invention, Figure 3 is a control section of the tool magazine of the machine tool according to the present invention shows the configuration. 4 to 11 show a process of exchanging the machining tool mounted on the ram spindle by the tool magazine of the machine tool according to the present invention and the exchange tool stored in the second gripper unit of the second receiving unit. 12 is a flowchart showing a method of operating a tool magazine of a machine tool according to the present invention according to the present invention.

Definitions of terms used below are as follows. "Horizontal direction" means the horizontal direction in the same member, that is, the X-axis direction in Figs. 4 and 8, it means the Y-axis direction, and "width direction" means a vertical direction in the same member while being orthogonal to a horizontal direction and a vertical direction.

A tool magazine 1 of a machine tool according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11 . As shown in Figures 1 to 11, the tool magazine 1 of the machine tool according to an embodiment of the present invention is a base part 10, a rotating part 20, a first accommodating part 30, a second accommodating part 40 , a first clamping unit 50 , a second clamping unit 60 , and a control unit 70 . In addition, as shown in Figures 2, 4, and 8, the tool magazine 1 of the machine tool according to an embodiment of the present invention may further include a bearing portion (80).

The tool magazine 1 of the machine tool according to the present invention can be applied to all machine tools that exchange tools by the movement of the ram spindle. 1 to 11, the vertical turning center is illustrated as an example, but the present invention is not limited thereto. The tool magazine 1 of the machine tool according to the present invention is formed by the pressing of the gripper of the tool magazine by the movement of the ram spindle. It can be applied to any machine tool changing tool clamping tool.

The base part 10 is installed in a part of the space in which the ram spindle 2 moves. In addition, the base portion 10 is formed extending perpendicularly to the ground or the bed of the machine tool.

The base portion 10 is formed in a hollow rectangular parallelepiped or cylindrical shape, but is not necessarily limited thereto, and may be formed in various shapes. In addition, the metal material is installed on one side of the machine tool to stably support the tool magazine.

The rotating part 20 is fixedly installed on the base part 10 to generate power for rotating the first and second accommodating parts 30 and 40 to be described later. The rotating unit 20 is formed of a servomotor or a driving unit formed of a motor and a rotating shaft connected to the driving unit and rotating together with the driving unit. Although not necessarily limited thereto, the rotating part 20 is a servomotor fixedly installed inside the base part 10 in order to prevent damage and promote miniaturization, and one side is coupled to the servomotor and the other side protrudes to the outside of the servomotor It is formed so as to rotate the rotating shaft.

In addition, the rotating unit 20 may include a reduction unit between the servomotor and the rotating shaft, and may transmit a desired rotational force to the rotating shaft through the reducing unit.

The first accommodating part 30 is installed in the base part 10 . That is, the first accommodating part 30 is installed in the base part so as to be rotatable by the rotating part. The first accommodating part is rotated by the rotating part. In addition, the first accommodating part 30 may receive a plurality of tools radially based on the rotation center (C) of the rotating part. These tools are respectively accommodated in a plurality of first gripper units 32 to be described later.

The second accommodating part 40 is rotatably installed in the base part while being spaced apart at regular intervals in the vertical direction (Y-axis direction) with respect to the first accommodating part. In addition, the second accommodating part 40 may receive a plurality of tools radially based on the rotation center (C) of the rotating part. These tools are respectively accommodated in a plurality of second gripper parts 42 to be described later.

The first clamping part 50 is installed in the first accommodating part 30 to clamp or unclamp the first accommodating part 30 and the second accommodating part 40 .

The second clamping part 60 is installed on the base part 10 to clamp or unclamp the second receiving part 30 and the base part 10 .

The control unit 70 controls the operation of the rotating unit, the first clamping unit, and the second clamping unit to exchange the machining tool mounted on the ram spindle with the exchange tool stored in the first receiving unit or the second receiving unit.

Specifically, when exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the first accommodating part, the base part and the second clamping part are clamped by the second clamping part under the control of the controller to rotate the second accommodating part. This is blocked, and the first accommodating part and the second accommodating part are unclamped by the first clamping part, so that only the first accommodating part is rotated by the rotating part.

In addition, specifically, when exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the second receiving unit, the base unit and the second clamping unit are unclamped by the second clamping unit under the control of the control unit to remove the second clamping unit. Rotation of the payment is allowed, and the first and second receiving units are clamped by the first clamping unit to rotate the second receiving unit as the rotational force of the rotating unit is transmitted to the second receiving unit.

In this way, the tool magazine of the machine tool according to the present invention arranges the first receiving part and the second receiving part in multiple stages in the vertical direction in order to replace the tools accommodated in the first and second receiving parts with the ram spindle, The first and second housing units adjust the rotation direction and operation sequence of the first clamping unit, the second clamping unit, and the rotating unit to rotate the two receiving units simultaneously or selectively with only one rotating unit to exchange the turning tool and the rotating tool. As a result, the number of tools installed in the tool magazine is expanded while the tool magazine is miniaturized and compact, and the productivity of the machine tool is increased by storing as many tools as possible in a compact space, thereby reducing the non-working time due to tool change. can be maximized.

The bearing part 80 is installed between the base part 10 and the second accommodation part 40 . When the first clamping part is clamped by the bearing part 80 and the second clamping part is unclamped, the second accommodating part 40 may rotate while being supported by receiving the rotational power of the rotating part from the first accommodating part.

Therefore, as the second housing part is stably supported by the bearing part 80 and the first housing part can be rotated simultaneously or selectively, the stability and reliability of the machine tool can be improved.

1, 2, and 4 to 11, the first accommodating part 30 of the tool magazine 1 of the machine tool according to the present invention includes a first body part 31 and a plurality of first gripper parts. (32), and a pocket portion (33).

The first body part 31 forms the outer shape of the first accommodating part 30 . The first body part 31 is installed on the base part. Specifically, the first body portion is connected to the rotation center (C) of the rotation unit and is installed on the base unit to be rotatable on the rotation unit 20 . Although not necessarily limited thereto, the first body part 41 is formed in a disk shape.

The plurality of first gripper parts 32 are radially installed at a predetermined angle to the first body part 31 with respect to the rotation center C of the rotating part to clamp the tool by pressing. That is, each of the first gripper parts 32 presses a pair of fingers by a pressing means such as an elastic member, and clamps the tool by this pressing force. The plurality of first gripper parts 32 are 36 pieces at an angle of 10 degrees, 24 pieces at an angle of 15 degrees, 12 pieces at an angle of 30 degrees, and 45 pieces on the first body part 31 based on the rotation center (C) of the rotation part. 8 at an angle of 60 degrees, 6 at an angle of 60 degrees, 4 at an angle of 90 degrees, 3 at an angle of 120 degrees, 2 at an angle of 180 degrees, etc. installed in multiples.

The pocket part 33 is formed to be opened at a predetermined angle to the first body part based on the rotation center C of the rotating part in order to exchange the tools accommodated in the second accommodating part 40 . That is, in the pocket portion 33, the first gripper portion is radially formed at a predetermined angle on the first body portion 31 with respect to the rotational center C of the rotating portion, and the first gripper portion is not formed in one place and is empty. keep space.

Specifically, for example, when the plurality of first gripper parts 32 are installed at an angle of 10 degrees to the first body part 31 with respect to the rotation center C of the rotating part as described above, 35 are installed. and one pocket portion is formed. As a barrier, when the plurality of first gripper parts 32 are installed at an angle of 15 degrees to the first body part 31 with respect to the rotation center C of the rotating part, 23 are installed, and one is a pocket part. is formed In the case where the plurality of first gripper parts 32 are installed at an angle of 30 degrees to the first body part 31 based on the rotation center C of the rotating part, 11 are installed and one pocket part is formed. do.

1, 2, and 4 to 11, the second housing part 40 of the tool magazine 1 of the machine tool according to the present invention includes a second body part 41 and a plurality of second gripper parts. 42 , a first accommodating part 43 , and a second accommodating part 44 .

The second body part 41 forms the outer shape of the second accommodating part 40 . The second body part 41 is rotatably installed on the base part 10 while being spaced apart from the first body part 31 in a vertical lower part (downward Y-axis direction).

The plurality of second gripper parts 42 are radially installed at a predetermined angle to the second body part 41 based on the rotation center C of the rotating part to clamp the tool by pressing. That is, the second gripper part 42 presses the pair of fingers by a pressing means such as an elastic member, and clamps the tool by this pressing force. The plurality of second gripper parts 42 are 36 pieces at an angle of 10 degrees, 24 pieces at an angle of 15 degrees, 12 pieces at an angle of 30 degrees, and 45 pieces on the second body part 41 based on the rotation center C of the rotating part. 8 at an angle of 60 degrees, 6 at an angle of 60 degrees, 4 at an angle of 90 degrees, 3 at an angle of 120 degrees, 2 at an angle of 180 degrees, etc. installed in multiples.

The first accommodating portion 43 is vertically depressed in the upper portion of the second body portion to accommodate a lower end portion of the first rod portion when the first rod portion of the first clamping portion, which will be described later, descends. That is, when a portion of the lower end of the first rod part is accommodated in the first accommodating part, the first accommodating part and the second accommodating part are clamped by the first clamping part.

The second accommodating portion 44 is vertically recessed in the lower portion of the second body portion to accommodate a portion of the upper end of the second rod portion when the second rod portion of the second clamping portion to be described later rises. That is, when a portion of the upper end of the second rod part is accommodated in the second accommodating part, the second accommodating part and the base part are clamped by the second clamping part.

1, 2, and 4 to 11, the angle α between the center line A of each first gripper part of the tool magazine 1 of the machine tool according to the present invention is each second The plurality of first gripper portions 32 are disposed on the first body portion 31 so as to be twice the angle β between the center lines B of the gripper portions, and the plurality of second gripper portions 42 are disposed on the second It is disposed on the body portion (41). That is, the first gripper part and the second gripper part rotate the rotating part in the first body part and the second body part, respectively, so that the number of tools accommodated in the second accommodating part increases by twice as many as +1 times the number of tools accommodated in the first accommodating part. It is arranged radially with respect to the center.

Specifically, as shown in FIGS. 1, 2, and 4 to 11 , according to a preferred embodiment of the present invention, a plurality of second gripper parts 42 are provided with the second body part based on the rotation center C of the rotating part. 24 are installed at an angle of 15 degrees at (41). At this time, in particular, as shown in FIG. 11 , according to a preferred embodiment of the present invention, the plurality of first gripper parts 32 are positioned between the center line B of the second gripper part with respect to the rotation center C of the rotating part. 11 of the plurality of first gripper parts 32 are installed at an angle of 30 degrees to the first body part 31 with respect to the rotation center C of the rotating part so as to double the angle β, and one of the first gripper parts 32 is a pocket part. is formed Accordingly, the total number of tools that are finally accommodated in the first and second storage units are stored in 35 pieces.

Therefore, the tool magazine of the machine tool according to the present invention can selectively store various types and a plurality of tools according to the needs of the user, and promotes the miniaturization of the machine tool by accommodating various types and a plurality of tools, and the tool The productivity of the machine tool is improved by reducing the replacement time, and the turning tool and the rotating tool are easily exchanged to quickly replace the tool in the event of a tool breakage to improve the machining precision of the machine tool, and to perform mass production or more complex precision machining. It can be performed efficiently to increase customer satisfaction.

1, 2, and 4 to 11, the tool receiving direction and each second gripper accommodated in each of the first gripper parts 32 of the tool magazine 1 of the machine tool according to the present invention The tool receiving directions accommodated in the portion 42 are formed to be identical to each other. That is, all tools accommodated in the first gripper part of the first accommodating part and the second gripper part of the second accommodating part are exchanged while the ram spindle moves up and down in the vertical direction, and the first gripper part and the second gripper part As all tools are stored in a vertical direction, the movement of the ram spindle is minimized during tool exchange, improving productivity by reducing non-working time, and optimizing the arrangement of the first and second housings. It is possible to reduce the manufacturing cost and maximize the space utilization by promoting the miniaturization of the tool magazine of the machine tool.

1, 2, and 4 to 11, the tool accommodated in the first gripper part 32 of the first housing part 30 of the tool magazine 1 of the machine tool according to the present invention is turning. The tool 5 is accommodated, and the tool accommodated in the second gripper portion 42 of the second accommodation portion 40 is accommodated in a rotary tool 6 .

As such, the tools accommodated in the first gripper unit and the second gripper unit are classified and divided, and various types and numbers of tools are stored, thereby improving user satisfaction by performing various tasks, and allowing the operator to operate the first gripper unit. and the second gripper part, promotes operator's convenience when arranging tools for the first time, increases machining precision by preventing operator errors in advance, protects the environment by reducing resource waste and time due to mis-machining, Processing cost can be reduced.

2, 4, and 8, the first clamping part 50 of the tool magazine 1 of the machine tool according to the present invention is a first cylinder part 51, a first rod part 52, and a first It includes a sensing unit 53 .

The first cylinder part 51 is installed on the first body part 31 to form an outer shape of the first clamping part. A chamber is formed inside the first cylinder part 51 to store hydraulic or pneumatic pressure flowing in or out through the flow path.

The first rod part 52 is selectively coupled to the first accommodating part 43 which is inserted and installed in the first cylinder part 51 so as to be able to move up and down in the vertical direction and is recessed in the upper part of the second body part. do. That is, the first rod part 52 rises or falls by hydraulic pressure or pneumatic pressure flowing into the first cylinder part 51 through the flow path through the signal of the command unit of the control unit, and if, the hydraulic pressure introduced through the flow path Alternatively, when the first rod part rises by pneumatic pressure, the coupling with the first accommodating part is released to unclamp the first accommodating part and the second accommodating part to form a state in which only the first accommodating part is rotatable, and hydraulic pressure or When the first rod part is lowered by pneumatic pressure, it is inserted and coupled to the first accommodating part to clamp the first accommodating part and the second accommodating part, so that the rotational force transmitted through the first accommodating part can be transmitted to the second accommodating part.

The first sensing unit 53 senses whether the first rod unit 52 and the first accommodating unit 43 are coupled. That is, the first sensing unit is formed of a dog sensor or a proximity sensor, and senses the vertical position according to the elevation of the first rod part 52, so that the coupling with the first accommodation part is released while the first rod part is raised, or It is sensed whether the first rod part is inserted and coupled to the first receiving part in a lowered state, and the sensing result is transmitted to the analysis part.

2, 4, and 8, the second clamping part 60 of the tool magazine 1 of the machine tool according to the present invention is a second cylinder part 61, a second rod part 62, and a second It includes a sensing unit 63 .

The second cylinder part 61 is installed on the base part 10 to form an outer shape of the second clamping part. A chamber is formed inside the second cylinder part 61 to store hydraulic or pneumatic pressure flowing in or out through the flow path.

The second rod part 62 is selectively coupled to the second accommodating part recessed in the lower part of the second body part while being inserted and installed so as to be able to elevate and move up and down in the second cylinder part. That is, the second rod part 62 is raised or lowered by hydraulic pressure or pneumatic pressure flowing into the interior of the second cylinder part 61 through the flow path through the signal of the command unit of the control unit, and if, the hydraulic pressure introduced through the flow path Alternatively, when the second rod part is lowered by pneumatic pressure, the coupling with the second accommodating part is released to unclamp the second accommodating part and the base part to form a rotatable state of the second accommodating part. When the second rod part rises, it is inserted and coupled to the second accommodating part to clamp the second accommodating part and the base part to block rotation of the second accommodating part.

The second sensing unit 63 senses whether the second rod unit 62 and the second accommodating unit 44 are coupled. That is, the second sensing unit is formed of a dog sensor or a proximity sensor and senses the vertical position according to the elevation of the second rod part 62 to determine whether the coupling with the second accommodation part is released in the state in which the second rod part is descended. Alternatively, it is sensed whether the second rod part is inserted and coupled to the second receiving part in an elevated state, and the sensing result is transmitted to the analysis part.

Although not necessarily limited thereto, the first clamping part and the second clamping part according to a preferred embodiment of the present invention may be formed of hydraulic or pneumatic cylinders.

In this way, the tool magazine of the machine tool according to the present invention arranges the first receiving part and the second receiving part in multiple stages in the vertical direction in order to replace the tools accommodated in the first and second receiving parts with the ram spindle, The first and second housing units adjust the rotation direction and operation sequence of the first clamping unit, the second clamping unit, and the rotating unit to rotate the two receiving units simultaneously or selectively with only one rotating unit to exchange the turning tool and the rotating tool. As a result, the number of tools installed in the tool magazine is expanded while the tool magazine is miniaturized and compact, and the productivity of the machine tool is increased by storing as many tools as possible in a compact space, thereby reducing the non-working time due to tool change. can be maximized.

1 to 11, the control unit 70 of the tool magazine 1 of the machine tool according to the present invention includes a data storage unit 71, a confirmation unit 72, a determination unit 73, a calculation unit ( 74 ), a command unit 75 , and/or an analysis unit 76 . In addition, although not shown in the drawings, the control unit 70 of the tool magazine 1 of the machine tool according to the present invention may include a PLC.

The control unit 70 includes a numerical control (NC) or a computerized numerical control (CNC), and various numerical control programs are embedded therein. That is, the control unit has a ram spindle driving unit, a spindle moving unit, and a servo motor driving program and a tool operating program built-in, and the program is automatically loaded and operated according to the driving of the control unit. In addition, the control unit performs communication with the PLC by a predetermined protocol.

In addition, the control unit communicates with the servomotor used to drive the PLC, the ram spindle driving unit, the ram spindle moving unit, and the tool transfer unit, and receives feedback information from the servomotor.

In addition, although not shown in the drawings, according to a preferred embodiment of the present invention, the control unit includes a main operation unit, and the main operation unit includes a screen display program and a data input program according to screen display selection, and the screen display According to the output of the program, the software switch is displayed on the display screen, and the ON/OFF of the software switch is recognized to give input/output commands for machine operation.

In addition, although not necessarily limited thereto, the main operation unit includes a monitor that is installed on the housing, case, or one side of the machine tool to display various function switches or buttons and various information.

A programmable logic controller (PLC) performs communication according to a predetermined protocol with a ram spindle driving unit, a ram spindle moving unit, a tool transfer unit, and a control unit, and performs a function of executing a control command through such communication. That is, the PLC drives the ram spindle and the like according to the numerical control program of the controller.

Therefore, the tool magazine 1 of the machine tool according to the present invention can not only accommodate various types and tools, but also can easily exchange the tools according to the movement of the ram spindle, thereby reducing the non-working time, and It is possible to perform mass production and precision processing by storage, increasing user convenience, and preventing malfunction of machine tools, thereby improving reliability and safety.

The data storage unit 71 includes a machining program, a tool type and tool position stored in the first gripper unit of the first housing unit and the second gripper unit of the second housing unit, a pocket position, a standby position (K1), and an exchange. Stores information about the location K2. The operation of storing various information in the data storage unit may be performed by the operator through the control unit or the main operation unit, and may be stored in the form of a program through the PLC or the input unit. Specifically, in the data storage unit 71, the current position of each of the first gripper unit 32 and the second gripper unit 42, the type and tool number of the stored tool, the pocket position, the standby position of the ram spindle, The operation sequence and operation of each equipment to store the information on the exchange location for mounting the exchange tool on the ram spindle, and to exchange the machining tool and the exchange tool in a specific state through the confirmation unit and the judgment unit, which will be described later, through the calculation unit Various data for determining the amount are stored.

The confirmation unit 72 confirms the tool type of the machining tool 3 mounted on the ram spindle. That is, based on the information of the confirmation unit 72 and the data storage unit, whether the processing tool 3 currently mounted on the ram spindle and the gripper to which the processing tool is returned are the first gripper unit disposed in the first receiving unit or the second receiving unit A current position is checked through the data storage unit to determine whether the second gripper unit is disposed on the .

The determination unit 73 determines the replacement tool 4 for exchanging the tool of the ram spindle based on the verification result of the verification unit and the data stored in the data storage unit. That is, the determination unit 73 accurately determines the replacement tool for the machining tool currently mounted on the ram spindle according to the machining program, and the gripper accommodating the replacement tool to be exchanged through the data stored in the data storage unit is the first receiving unit. A current position is determined through the data storage unit whether it is the first gripper unit disposed in the .

The calculation unit 74 converts the processing tool 3 mounted on the ram spindle 2 to the original processing tool according to the data stored in the data storage unit 71, the verification unit 72, and the determination result of the determination unit 73. is returned to the corresponding gripper unit initially stored therein, and the rotating unit 20, the first clamping unit 50, and the second The operation sequence of the clamping unit 60 and the rotation direction and amount of rotation of the rotating unit 20 are calculated.

The command unit 75 outputs operation signals to the rotating unit, the first clamping unit, and the second clamping unit according to the result of the calculation unit 74 to operate the rotating unit, the first clamping unit, and the second clamping unit according to the operation order. and rotate the rotating part by the calculated rotation direction and rotation amount.

The analysis unit 76 is configured to perform the first clamping unit or the second clamping unit according to the results of the data storage unit 71 , the confirmation unit 72 , the determination unit 73 , the calculation unit 74 , and the command unit 75 . It analyzes whether any one of the gripper part and the pocket part of the first gripper part or the second gripper part in which the exchange tool is stored is normally operated and whether there is a normal movement to the exchange position, and if there is an abnormality, an alarm is generated. That is, the analysis unit 76 receives signals from the first sensing unit and the second sensing unit, and the received signal and data storage unit 71 , the verification unit 72 , the determination unit 73 , and the calculation unit 74 . , and the result of the command unit 75 are analyzed to check the normal operation status and the movement status of the pocket part, and if there is an abnormality, an alarm is generated to prevent damage or breakage of equipment or tools, It can be prevented in advance to improve safety and reliability.

As such, the tool magazine of the machine tool according to the present invention promotes the convenience of the operator as the operation sequence of the first clamping unit, the second clamping unit, and the rotating unit and the amount and direction of rotation of the rotating unit are automatically adjusted through the control unit. , it is possible to prevent safety accidents that may occur during tool replacement in advance, maximize the safety and reliability of the machine tool, and the first and second housing units arranged in multiple stages spaced apart in the vertical direction with only one rotating unit. By selectively or simultaneously rotationally driving, it is possible to reduce maintenance costs and maintenance time, and reduce processing costs.

A method of operating a tool magazine of a machine tool according to the present invention will be described with reference to FIG. 12 . As shown in Figure 12, the method of operating the tool magazine of the machine tool according to the present invention is a data storage step (S1), a confirmation step (S2), a determination step (S3), a calculation step (S4), a command step (S5) , returning the machining tool (S6), operating the first clamping unit/second clamping unit (S7), rotating the first receiving unit/second receiving unit (S8), exchanging step (S9), analyzing step (S10) includes The overall operating principle control method and equipment configuration of the method of operating the tool magazine of the machine tool according to the present invention are the same as those of the tool magazine of the machine tool according to the present invention described above. Hereinafter, the differences will be mainly described.

A machining program for exchanging the machining tool mounted on the ram spindle and the exchange tool housed in the first or second accommodating part, stored in the first gripper part of the first accommodating part and the second gripper part of the second accommodating part Information on the type of tool to be used, the tool position, the pocket position, the standby position (K1), and the exchange position (K2) is stored in the data storage unit.

After the data storage step (S1), the tool type of the machining tool 3 mounted on the ram spindle 2 is checked in the confirmation unit.

After the confirmation step (S2), the determination unit determines the replacement tool 4 to be replaced on the ram spindle 2 according to the machining program.

After the determination step S3, the processing tool mounted on the ram spindle is returned to the corresponding gripper unit according to the data pre-stored in the data storage unit, the verification result of the verification unit, and the determination result of the determination unit, and the gripper holding the replacement tool is removed. In order to move to the exchange position, the operation sequence of the rotating part, the first clamping part, and the second clamping part, and the rotation direction and the rotation amount of the rotating part are calculated by the calculator.

After the calculation step (S4), the command unit sequentially transmits an operation signal to the rotating unit, the first clamping unit, and the second clamping unit according to the calculation result of the calculation unit from the command unit to the rotating unit, the first clamping unit, and the second clamping unit.

After the command step S5, the ram spindle moves to the replacement position according to the operation signal sequentially transmitted from the command unit, and the processing tool mounted on the ram spindle is originally stored in the first gripper part or the second gripper part. After returning, the ram spindle moves to the standby position K1 in order to prevent collision with the ram spindle due to interference when the first or second housing unit rotates. That is, the machining tool mounted on the ram spindle is returned to the gripper unit originally stored.

After the processing tool return step (S6), the first clamping part or the second clamping part is moved to the exchange position of either the first gripper part or the second gripper part, which holds the exchange tool for mounting on the ram spindle. The clamping part works. That is, when the replacement tool is stored in any one of the plurality of first gripper units, the first clamping unit and the second clamping unit operate to rotate only the first receiving unit in which the first gripper unit is installed. Specifically, the machining tool mounted on the ram spindle must also be stored in any one of the first gripper parts of the first housing part in the stage in which the first clamping part or the second clamping part is operated, and When exchanging the exchange tool stored in the first gripper part among the plurality of first gripper parts, the second clamping part clamps the base part and the second clamping part by the second clamping part to block the rotation of the second housing part. The addition operates, and the first clamping unit operates so that the first receiving unit and the second receiving unit are unclamped by the first clamping unit to form a state in which only the first receiving unit can be rotated by the upper rotating unit.

In addition, when the replacement tool is stored in any one of the second gripper units among the plurality of second gripper units, and the machining tool is to be stored in any one of the first gripper units among the plurality of first gripper units of the first housing unit First, rotate the first gripper part and move it to the exchange position to return the machining tool, and then rotate the first and second housing parts to move the pocket part and the second gripper part for accommodating the exchange tool to the exchange position. The first clamping unit and the second clamping unit operate to Specifically, when the first clamping unit or the second clamping unit is operated, the processing tool and the second receiving unit are accommodated in any one of the first gripper units among the plurality of first gripper units of the first receiving unit mounted on the ram spindle. When an exchange tool stored in one of the plurality of second gripper parts is exchanged, the base part and the second clamping part are unclamped by the second clamping part to allow rotation of the second housing part. The second clamping unit operates, and the first and second receiving units are clamped by the first clamping unit, so that the rotational force of the rotating unit is transmitted to the second receiving unit to form a state in which the second receiving unit can rotate. In addition, under the control of the control unit, the first accommodating portion is rotated preferentially to move the pocket portion to the replacement position.

After the first clamping part/second clamping part operation step S7, only the first housing part rotates or the second housing part is also changed to a state in which the operation state of the first clamping part and the second clamping part can be rotated. The first or second accommodating part provided with any one of the plurality of first gripper parts or second gripper parts accommodating the exchange tool is rotated to the exchange position by the rotating part under the control of the controller.

After the first housing/second housing rotation step (S8), the ram spindle waiting in the standby position moves to the exchange position under the control of the controller to exchange it with an exchange tool.

After the exchange step (S9), whether the first clamping unit or the second clamping unit is operating normally and the first or second gripper unit storing the replacement tool according to the pre-stored data, the confirmation result, the judgment result, the calculation result, and the operation signal It analyzes whether any one of the gripper parts and the pocket part moves normally to the replacement position and generates an alarm if there is an abnormality. That is, as described above, according to the position information of the first and second rods from the first sensing unit and the second sensing unit, the first gripper unit in which the processing tools and replacement tools of the first clamping unit and the second clamping unit are accommodated. It analyzes normal operation and normal movement depending on the presence of the second gripper and generates an alarm to prevent damage or damage to tools or devices due to malfunction or interference of equipment.

Therefore, in the method of operating the tool magazine of the machine tool according to the present invention, the first housing part and the second housing part are vertically arranged in multiple stages in order to replace the tools accommodated in the first housing part and the second housing part with the ram spindle. and the first and second accommodating parts adjust the rotation direction and operation sequence of the first clamping part, the second clamping part, and the rotating part, and simultaneously or selectively rotate the two accommodating parts with only one rotating part, so that the turning tool and the rotary tool As the tools can be exchanged, the tool magazine is made smaller and compact while expanding the tools installed in the tool magazine. Maximizes the productivity of the operator, and the operation sequence of the first clamping unit, the second clamping unit, and the rotating unit and the rotation amount and rotation direction of the rotating unit are automatically adjusted through the control unit, thereby promoting the convenience of the operator, It can prevent possible safety accidents in advance and maximize the safety and reliability of machine tools.

An operating sequence and operating principle of the tool magazine 1 and its operating method of the machine tool according to the present invention will be described with reference to FIGS. 1 to 11 .

The machining tool is primarily accommodated in one of the plurality of first gripper parts of the first accommodating part, and the exchange tool is also stored in the first gripper part of the other one of the plurality of first gripper parts of the first accommodating part. The operation sequence and principle of operation when stored in the gripper unit will be described.

In order to rotate only the first accommodating part to the rotating part, the first rod part of the first clamping part is lifted by a signal from the command part of the control part and the coupling with the first accommodating part is released, so that the first accommodating part and the second accommodating part are unclamped. (refer to D of FIG. 4) In addition, in order to rotate only the first housing unit by the rotating unit, the second rod unit of the second clamping unit is inserted and coupled to the second receiving unit in an elevated state by the signal of the command unit to rotate the second receiving unit. By forming a state in which the payment and the base part are clamped, the rotation of the second housing part is blocked. 1 Among the gripper parts, the first gripper part for accommodating the machining tool rotates to the replacement position.

Thereafter, in a state in which the improvement of the second housing unit is blocked by a signal from the command unit of the control unit, as the first housing unit rotates with the rotational force of the rotating unit, the first gripper unit for accommodating the machining tool among the plurality of first gripper units of the first housing unit Rotate to the exchange position.

Thereafter, as shown in FIGS. 5 and 6 , the ram spindle moves by the command unit of the control unit and signals such as PLC, returns the machining tool to the corresponding first gripper unit of the first housing unit, and moves to the standby position. Accordingly, damage or breakage of the tool or the ram spindle or the tool magazine due to a collision between the tool and the ram spindle during rotation of the first housing unit is prevented, and a safety accident is prevented in advance.

Thereafter, the corresponding first gripper portion accommodating the replacement tool among the plurality of first gripper portions of the first housing portion is rotated to the replacement position by the rotation of the rotating portion in response to a signal from the command portion of the control unit. Even at this time, as shown in FIG. 4D , the first rod part of the first clamping part maintains an elevated state to release the coupling with the first accommodating part, and the first accommodating part and the second accommodating part form an unclamped state to form the first Only the accommodating part can rotate, and as shown in FIG. 4E , the second clamping part is inserted and coupled to the second accommodating part by maintaining the second rod part in an elevated state to block the rotation of the second rotating part. As a result, only the first accommodating part is rotated by the rotational force of the rotating part.

Thereafter, the ram spindle moves in response to a signal from the command unit of the control unit and PLC, and the replacement tool is gripped by the corresponding first gripper unit of the first housing unit to complete the tool change.

Secondarily, the machining tool is accommodated in any one of the first gripper parts of the first accommodating part, and the replacement tool is stored in the second gripper of any one of the plurality of second gripper parts of the second accommodating part. The operation sequence and principle of operation when stored in the department will be explained.

As shown in FIG. 4 , in order to rotate only the first accommodating part, the first rod part of the first clamping part is lifted by a signal from the command part of the control part and the coupling with the first accommodating part is released, so that the first accommodating part and the second accommodating part are released. The part forms an unclamped state (refer to D of FIG. 4). In addition, in order to rotate only the first housing part by the rotating part, the second rod part of the second clamping part is inserted into the second housing part in an elevated state by a signal from the command part. Combined to form a clamped state of the second accommodating part and the base part, the rotation of the second accommodating part is blocked (see FIG. 4E). As only the first accommodating part rotates, the first gripper part for accommodating the machining tool among the plurality of first gripper parts of the first accommodating part rotates to the replacement position. That is, as the first accommodating part rotates with the rotational force of the rotating part according to a signal from the command part of the control unit, the first gripper part for accommodating the machining tool among the plurality of first gripper parts of the first accommodating part rotates to the replacement position.

Thereafter, as shown in FIGS. 5 and 6 , the ram spindle moves by the command unit of the control unit and signals such as PLC, returns the machining tool to the corresponding first gripper unit of the first housing unit, and moves to the standby position. Accordingly, damage or breakage of the tool or the ram spindle or the tool magazine due to a collision between the tool and the ram spindle during rotation of the first housing unit is prevented, and a safety accident is prevented in advance.

Thereafter, as shown in FIG. 7 , as shown in FIG. 4D , the first rod part of the first clamping part maintains the raised state to move the pocket part to the exchange position in the state in which the second receiving part blocks the rotation, so that the first The coupling with the accommodating part is released to form an unclamped state of the first accommodating part and the second accommodating part so that only the first accommodating part can rotate, and as shown in FIG. 4E , the second clamping part rises with the second rod part It is inserted and coupled to the second accommodating part by maintaining the state, the rotation of the second rotating part is blocked. As a result, only the first accommodating part is rotated by the rotational force of the rotating part. Thereafter, the rotating unit rotates in response to a signal from the command unit of the control unit to move the pocket unit to the replacement position. As a result, only the first accommodating part is rotated by the rotational force of the rotating part.

Thereafter, as shown in FIG. 8 , a state in which the second housing unit can be rotated is formed in order to move the corresponding second gripper unit accommodating the exchange tool among the plurality of second gripper units of the second housing unit to the replacement position. . Specifically, the first rod part of the first clamping part is lowered by a signal from the command part of the control unit and is inserted and coupled to the first accommodating part to form a state in which the first accommodating part and the second accommodating part are clamped, so that the rotational force of the first accommodating part is reduced. 2 is transmitted to the receiving unit. (See F of FIG. 8) In addition, the second rod unit of the second clamping unit is lowered by a signal from the command unit and the coupling with the second receiving unit is released so that the second receiving unit and the base unit are unclamped. Accordingly, a state in which the second accommodating part can be rotated is formed. (See G of FIG. 8 ) As a result, the rotational force of the rotating part is transmitted to the second accommodating part through the first accommodating part, and the second accommodating part is also rotatable. Among the plurality of second gripper parts of the second accommodating part, the second gripper part accommodating the exchange tool rotates to the exchange position.

Thereafter, as shown in FIGS. 9 and 11 , the ram spindle waiting in the standby position moves through a signal from the control unit and PLC to hold the exchange tool to exchange the exchange tool.

As such, in the tool magazine of a machine tool and its operating method according to the present invention, the first receiving part and the second receiving part are vertically arranged in multiple stages in order to replace the tools accommodated in the first and second housing parts with the ram spindle. and the first and second accommodating parts adjust the rotation direction and operation sequence of the first clamping part, the second clamping part, and the rotating part to simultaneously or selectively rotate the two accommodating parts with only one rotating part, and by the pocket part As the turning tool and rotary tool can be easily exchanged only by moving the ram spindle, the tool magazine is made smaller and more compact while expanding the tools installed in the tool magazine. It is possible to maximize the productivity of the machine tool by reducing the non-working time due to replacement, to reduce the maintenance cost and maintenance time, to reduce the machining cost and to improve the machining precision.

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those having ordinary knowledge in the technical field of the present invention described in the claims to be described later It will be understood that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: Tool magazine, 2: Ram spindle,
3: machining tool, 4: exchange tool,
5: turning tool, 6: rotary tool,
10: base part, 20: rotating part,
30: a first accommodating part, 31: a first body part,
32: first gripper part, 33: pocket part,
40: a second accommodating part, 41: a second body part,
42: a second gripper part, 43: a first accommodating part,
44: second receiving part, 50: first clamping part,
51: first cylinder, 52: first rod portion,
53: first sensing unit, 60: second clamping unit,
61: second cylinder, 62: second rod part,
63: second sensing unit, 70: control unit,
71: data storage unit, 72: confirmation unit,
73: judgment unit, 74: calculation unit,
75: command unit, 76: analysis unit,
80: bearing part;

Claims (18)

a base part installed in a part of the space in which the ram spindle moves;
a rotating part installed on the base part;
a first accommodating part rotatably installed in the base part, accommodating a plurality of tools, and rotated by the rotating part;
a second accommodating part rotatably installed on the base part while being spaced apart from the first accommodating part in a vertical direction and accommodating a plurality of tools;
a first clamping part installed in the first accommodating part to clamp or unclamp the first accommodating part and the second accommodating part; and
and a second clamping part installed on the base part for clamping or unclamping the second accommodating part and the base part.
According to claim 1,
and a control unit for controlling operations of the rotating unit, the first clamping unit, and the second clamping unit in order to exchange a tool mounted on the ram spindle.
3. The method of claim 2,
When exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the first housing,
The base part and the second clamping part are clamped by the second clamping part under the control of the controller to block the rotation of the second housing part, and the first housing part and the second clamping part are clamped by the first clamping part. 2 The tool magazine of a machine tool, characterized in that the accommodating part is unclamped so that only the first accommodating part is rotated by the rotating part.
3. The method of claim 2,
When exchanging the machining tool mounted on the ram spindle and the exchange tool stored in the second housing,
The base part and the second clamping part are unclamped by the second clamping part under the control of the controller to allow rotation of the second housing part, and the first clamping part and the first housing part are unclamped. The tool magazine of a machine tool, characterized in that the second housing portion is clamped so that the second housing portion rotates as the rotational force of the rotating portion is transmitted to the second storage portion.
3. The method of claim 2,
The first receiving unit,
a first body portion rotatably installed in the base portion so as to be rotated by the rotation portion;
a plurality of first gripper parts installed radially at a predetermined angle to the first body part based on the rotation center of the rotating part and clamping the tool by pressing; and
The tool magazine of a machine tool comprising a; pocket portion formed to be opened at a predetermined angle to the first body portion based on the rotation center of the rotating portion in order to exchange the tool accommodated in the second receiving portion.
6. The method of claim 5,
The second receiving unit,
a second body part spaced apart from the first body part vertically and rotatably installed on the base part; and
and a plurality of second gripper parts installed radially at a predetermined angle to the second body part based on the rotation center of the rotating part and clamping the tool by pressing.
7. The method of claim 6,
The control unit is
a processing program, and information on the type and tool position of the tool accommodated in the first gripper unit of the first housing unit and the second gripper unit of the second housing unit, the position of the pocket unit, the standby position, and the exchange position; data storage unit;
a confirmation unit for confirming a tool type of a machining tool mounted on the ram spindle;
a determination unit for determining a replacement tool for exchanging the tool of the ram spindle based on the verification result of the verification unit and the data stored in the data storage unit;
The processing tool mounted on the ram spindle is returned to the corresponding gripper unit according to the data stored in the data storage unit, the confirmation unit, and the determination result of the determination unit, and the gripper unit storing the replacement tool is moved to the replacement position. a calculation unit for calculating an operation sequence of a rotating unit, the first clamping unit, and the second clamping unit, and a rotation direction and amount of rotation of the rotating unit; and
and a command unit for outputting an operation signal to the rotation unit, the first clamping unit, and the second clamping unit according to the result of the calculation unit.
8. The method of claim 7,
The control unit is
According to the results of the data storage unit, the confirmation unit, the determination unit, the calculation unit, and the command unit, whether the first clamping unit or the second clamping unit is operating normally, and the first gripper unit or the first gripper unit accommodating the replacement tool 2 The tool magazine of a machine tool further comprising a; an analysis unit that analyzes whether any one of the gripper units and the pocket unit moves normally to the replacement position and generates an alarm when there is an abnormality.
7. The method of claim 6,
A tool magazine for a machine tool, characterized in that the tool receiving direction accommodated in each of the first gripper units and the tool receiving direction accommodated in each of the second gripper units are formed to be the same.
7. The method of claim 6,
The first gripper portion is disposed on the first body portion such that an angle between the centerlines of each of the first gripper portions is twice the angle between the centerlines of each of the second gripper portions, and the second gripper portion is the second gripper portion. A tool magazine of a machine tool, characterized in that it is disposed on the main body.
7. The method of claim 6,
A turning tool is accommodated in each of the first gripper parts,
A tool magazine of a machine tool, characterized in that a rotating tool is accommodated in each of the second gripper parts.
7. The method of claim 6,
The first clamping part,
a first cylinder part installed on the first body part;
a first rod part installed in the first cylinder part and selectively coupled to a first accommodating part recessed in an upper part of the second body part while reciprocating up and down; and
The tool magazine of a machine tool comprising a; a first sensing unit for sensing the coupling of the first rod portion and the first accommodation portion.
7. The method of claim 6,
The second clamping part,
a second cylinder part installed on the base part;
a second rod part installed in the second cylinder part and selectively coupled to a second accommodating part recessed in a lower part of the second body part while reciprocating up and down; and
The tool magazine of a machine tool comprising a; a second sensing unit for sensing the coupling of the second rod unit and the second accommodating unit.
3. The method of claim 2,
The tool magazine of a machine tool further comprising; a bearing part installed between the base part and the second receiving part.
A machining program for exchanging the machining tool mounted on the ram spindle and the exchange tool housed in the first or second accommodating part, stored in the first gripper part of the first accommodating part and the second gripper part of the second accommodating part storing information on the type of tool to be used, a tool position, a pocket position, a standby position, and an exchange position;
checking a tool type of a machining tool mounted on the ram spindle;
determining an exchange tool to be replaced with the ram spindle according to the machining program;
In order to return the machining tool mounted on the ram spindle to the corresponding gripper unit according to the pre-stored data, the confirmation result, and the judgment result, and to move the gripper unit accommodating the exchange tool to the exchange position, the rotating part, the first clamping part, and the first clamping part; 2 calculating the operation sequence of the clamping unit and the rotation direction and amount of rotation of the rotating unit;
sequentially transmitting an operation signal to the rotation unit, the first clamping unit, and the second clamping unit according to the calculation result;
The ram spindle moves to the replacement position according to the sequentially transmitted operation signal, returns the machining tool mounted on the ram spindle to the first gripper unit or the second gripper unit, and then the ram spindle moves to the standby position step;
operating the first clamping part or the second clamping part to move one of the first gripper part or the second gripper part storing the exchange tool to an exchange position;
rotating the first accommodating part or the second accommodating part in which the gripper part accommodating the exchange tool is installed to an exchange position; and
The method of operating a tool magazine of a machine tool, comprising the; step of moving the ram spindle waiting in the standby position to the exchange position to exchange it with an exchange tool.
16. The method of claim 15,
According to pre-stored data, confirmation result, judgment result, calculation result, and operation signal, whether the first clamping unit or the second clamping unit is operating normally, and any one of the first gripper unit or the second gripper unit storing the replacement tool is selected. The method of operating a tool magazine of a machine tool, characterized in that it further comprises; analyzing whether the gripper part and the pocket part are normally moved to the replacement position and generating an alarm if there is an abnormality. 16. The method of claim 15,
When the machining tool mounted on the ram spindle is returned to the first accommodating unit and the exchange tool stored in the first accommodating unit is exchanged in the step of operating the first clamping unit or the second clamping unit,
The base portion and the second clamping portion are clamped by the second clamping portion to block rotation of the second accommodation portion, and the first and second accommodation portions may be unclamped by the first clamping portion. The method of operating a tool magazine of a machine tool, characterized in that only the first housing part rotates by the rotating part.
16. The method of claim 15,
When the machining tool mounted on the ram spindle is returned to the first accommodating unit and the exchange tool stored in the second accommodating unit is exchanged in the step of operating the first clamping unit or the second clamping unit,
The base part and the second clamping part are unclamped by the second clamping part to allow the second accommodating part to rotate, and the first accommodating part and the second accommodating part are clamped by the first clamping part. The operating method of the tool magazine of the machine tool, characterized in that the rotational force of the rotating part is transmitted to the second receiving part to rotate the second receiving part.

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