WO2017056847A1

WO2017056847A1 - Machining apparatus

Info

Publication number: WO2017056847A1
Application number: PCT/JP2016/075821
Authority: WO
Inventors: 規司小池; 和重両角; 達典佐藤; 佳通宇田; 禎博山田
Original assignee: エンシュウ株式会社
Priority date: 2015-10-01
Filing date: 2016-09-02
Publication date: 2017-04-06
Also published as: CN107921595A; CN107921595B; JP2017064867A; JP6604592B2

Abstract

Provided is a machining apparatus equipped with a workpiece-exchanging mechanism in a form that does not increase structural limitations on the workpiece-exchanging mechanism or reduce workpiece machining efficiency even in a machining apparatus in which a tool magazine and a work table move integrally. The machining apparatus (100) is provided with a machining head (101), a Y-axial direction movement mechanism (110) and a workpiece-exchanging mechanism (116). The machining head (101) is provided with a main shaft (102) for detachably holding a machining tool (104) and reciprocates in the X- and Y-axial directions. The Y-axial direction movement mechanism (110) is provided with work tables (108) for holding workpieces (WK), a tool magazine (112) and a machining region partition (117), and integrally reciprocates same in the Y-axial direction. The workpiece-exchanging mechanism (116) is provided at a position in which the mechanism can exchange workpieces (WK) at the position of the work tables (108) on the Y-axial direction when the tool magazine (112) is located at the machining tool (104)-exchanging position, and exchanges the work tables (108) on the Y-axial direction movement mechanism (110).

Description

Machine Tools

The present invention relates to a machine tool that forms a three-dimensional shape by cutting a workpiece.

Conventionally, in a machine tool that forms a three-dimensional shape by cutting a workpiece, it is possible to hold a plurality of machining tools in advance and selectively replace these machining tools with respect to the spindle. There is a machine tool with a tool magazine. For example, in the following Patent Document 1, automatic tool change is performed without using a tool change arm by moving a tool magazine integrally with a work table holding a workpiece and positioning it below the spindle. A machine tool that can be used is disclosed. In this case, the machine tool in which the tool magazine and the work table move integrally has a longer structural distance for moving the work table in consideration of tool change than the machine tool in which the work table moves alone. have.

JP 2013-248709 A

However, in the machine tool shown in the above-mentioned Patent Document 1, when providing a workpiece exchange mechanism for automatically exchanging the workpiece on the work table, similarly to the machine tool in which the work table moves alone, There is a problem that there is always a demand for an installation in a manner that does not reduce the configuration limitation of the workpiece exchange mechanism and the processing efficiency of the workpiece.

The present invention has been made to cope with the above-described problems. The object of the present invention is to increase the limitation on the configuration of the workpiece exchange mechanism and to process a workpiece even in a machine tool in which the tool magazine and the work table move integrally. An object of the present invention is to provide a machine tool provided with a workpiece exchange mechanism in a manner that does not reduce efficiency.

In order to achieve the above object, the present invention is characterized by a work table that holds a workpiece, a spindle that is opposed to the work table and that holds a machining tool that cuts the workpiece so as to be rotationally driven, and a workpiece. A tool magazine which is provided on one side of the Y-axis direction where the table reciprocates so as to reciprocate integrally with the work table in the Y-axis direction, and holds a plurality of processing tools detachably with respect to the spindle; A Y-axis direction moving mechanism for reciprocally moving the work table and the tool magazine relative to the main shaft in the Y-axis direction orthogonal to the rotation axis direction, and at least a work piece on the work table to another work piece A workpiece exchange mechanism for exchanging, and the workpiece exchange mechanism is to be machined at the position of the work table when the tool magazine is located at the machining tool exchange position with respect to the spindle. In that provided in the exchange position.

According to the feature of the present invention configured as described above, the machine tool has the workpiece exchange mechanism at a position where the workpiece can be exchanged at the position of the work table when the tool magazine is located at the machining tool exchange position with respect to the spindle. Since it is provided, the workpiece exchange process can be performed before and after the machining tool exchange process or during the machining tool exchange, and a reduction in machining efficiency of the workpiece can be prevented. Further, in the machine tool, since the work exchange mechanism is provided at a position where the work table is farthest from the spindle, it is possible to prevent the structural freedom of the work exchange mechanism from being increased and increase in the structural restrictions. it can. In addition to the position on the Y axis where the work table moves integrally with the tool magazine, the position where the work changing mechanism is provided is X which is orthogonal to the Y axis and the Z axis. It can be arranged on the axial direction side.

Another feature of the present invention is that, in the machine tool, the workpiece exchange mechanism is provided at a position on the other side in the Y-axis direction where the work table reciprocates.

According to another feature of the present invention configured as described above, the machine tool is provided with the workpiece exchange mechanism at the other side position on the Y-axis direction where the work table reciprocates. The installation space in the factory can be used efficiently by suppressing overhang in the X-axis direction). In particular, when a large number of machine tools are installed side by side, it is possible to reduce a dead space (a space that is difficult to effectively use) that is likely to occur between machine tools.

Another feature of the present invention is that, in the machine tool, the workpiece exchange mechanism exchanges a workpiece by exchanging the work table.

According to another feature of the present invention configured as described above, the machine tool replaces the workpiece by exchanging the work table by the workpiece exchange mechanism. Even in this machining step, accurate machining can be performed by using the work table as a reference.

Another feature of the present invention is that in the machine tool, a work area partition that partitions a space between the work table and the tool magazine, and a work table side and a tool magazine side provided in the work area partition. And a closing portion provided in the tool magazine for closing the communication opening so as to be openable and closable, and the machining area partition is a machining tool exchange position with respect to the main axis in the Y-axis direction. The closing body is provided on the worktable side, and the closing body surrounds the communication opening while covering a part of the periphery of the processing tool held by the spindle located at the replacement position of the processing tool. That is, the tool magazine is formed so as to protrude in a concave shape.

According to another feature of the present invention configured as described above, the machine tool is a machining tool that is held by the spindle during the workpiece replacement process by the tool magazine indexing the closing body when the tool change is unnecessary. Can be withdrawn into a closed body formed in a concave shape, and unnecessary tool change, tool magazine and surrounding contamination including the tool magazine can be prevented.

Another feature of the present invention is that the machine tool further includes a control device that controls each operation of the tool magazine, the Y-axis direction moving mechanism, and the workpiece exchange mechanism, and the control device processes the tool magazine on the spindle. When the machining tool is exchanged at the tool exchange position, the workpiece is also exchanged.

According to another aspect of the invention configured as described above, when the machine tool replaces the processing tool by positioning the tool magazine at the tool replacement position with respect to the spindle, the machine tool also replaces the workpiece. Since it performs, processing efficiency can be improved.

It is the front perspective view showing the outline of the appearance composition of the machine tool concerning one embodiment of the present invention. It is a block diagram of the control system for controlling the action | operation of the machine tool shown in FIG. It is a front perspective view which shows the internal structure which abbreviate | omitted the process head and column of the machine tool shown in FIG. It is a front perspective view which shows the internal structure which abbreviate | omitted the process area partition body of the machine tool shown in FIG. It is a top view which shows the internal structure which looked at the machine tool shown in FIG. 4 from upper direction. It is explanatory drawing for demonstrating the positional relationship and operation | movement process of the processing head in the machine tool shown in FIG. 1, a Y-axis direction moving mechanism, a tool magazine, and a workpiece | work exchange mechanism, and shows the state at the time of processing of a workpiece Yes. It is explanatory drawing for demonstrating the positional relationship and operation | movement process of the processing head in the machine tool shown in FIG. 1, a Y-axis direction moving mechanism, a tool magazine, and a workpiece | work exchange mechanism, and has shown the state at the time of the exchange process of a work table. . It is explanatory drawing for demonstrating the positional relationship and operation | movement process of the processing head in the machine tool shown in FIG. 1, a Y-axis direction moving mechanism, a tool magazine, and a workpiece | work exchange mechanism, and inserted the processing tool in the holding part of the tool magazine. Indicates the state. It is explanatory drawing for demonstrating the positional relationship and operation | movement process of the processing head in the machine tool shown in FIG. 1, a Y-axis direction moving mechanism, a tool magazine, and a workpiece | work exchange mechanism, and retracted the obstruction body hold | maintained at the tool magazine. Indicates the state. It is explanatory drawing for demonstrating the positional relationship and operation | movement process of the processing head in the machine tool shown in FIG. 1, a Y-axis direction moving mechanism, a tool magazine, and a workpiece | work exchange mechanism, and has shown the state at the time of the exchange process of a processing tool. .

Hereinafter, an embodiment of a machine tool according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of an external configuration of a main part of a machine tool 100 according to the present invention. FIG. 2 is a block diagram of a control system for controlling the operation of the machine tool 100. Note that the drawings referred to in this specification are schematically shown by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each component may differ. The machine tool 100 is a machine device that forms a three-dimensional shape on the workpiece WK by performing cutting by moving the processing tool 104 relative to the workpiece WK by computer control (NC control).

(Configuration of machine tool 100)
The machine tool 100 includes a processing head 101. The processing head 101 is a mechanical device that holds and rotates the processing tool 104, and mainly includes a main shaft 102 and a main shaft driving motor 103, respectively. The main shaft 102 is a cylindrical part made of metal having a conical hole-like connection part for detachably holding the processing tool 104. The main shaft drive motor 103 is an electric motor for rotationally driving the main shaft 102, and its operation is controlled by a control device 120 described later.

The processing tool 104 is a cutting tool for cutting the workpiece WK, and specifically includes a cutting tool such as a drill or an end mill. As this processing tool 104, a plurality of types of processing tools 104 having cutting edges corresponding to the type of processing on the workpiece WK are prepared and held in a tool magazine 112 described later.

The machining head 101 has a Z-axis direction (a vertical direction of the machine tool 100) which is a direction approaching or separating from a work table 108 which will be described later, and an X-axis direction (a horizontal direction of the machine tool 100) perpendicular to the Z-axis direction. ) Are supported by the column 105 of the machine tool 100 so as to be reciprocally movable. The column 105 is a cast column member mainly for supporting the processing head 101, and is configured in a gate shape standing up from the upper surface of the bed 115 in the drawing.

In this case, the column 105 includes a Z-axis drive motor 106 that generates a driving force for moving the machining head 101 in the Z-axis direction, a screw feed mechanism (not shown), and a linear guide (not shown). Through these, the machining head 101 is supported so as to be movable in the Z-axis direction. The column 105 includes an X-axis drive motor 107 that generates a driving force for moving the machining head 101 in the X-axis direction, a screw feed mechanism (not shown), and a linear guide (not shown). Thus, the machining head 101 is supported in such a manner that it can move in the X-axis direction.

The work table 108 is a part that detachably holds a workpiece WK, which is a cutting target of the machine tool 100, via a chuck device (not shown) such as a clamp, and is formed by forming a casting material into a plate shape. Yes. The work table 108 is supported on the Y-axis direction moving mechanism 110 in a detachable state.

The Y-axis direction moving mechanism 110 integrally moves the work table 108, the tool magazine 112, and the machining area partition 117 in the Y-axis direction (the longitudinal direction of the machine tool 100) orthogonal to the Z-axis direction and the X-axis direction, respectively. These are mechanical devices for reciprocal movement, and are provided on the bed 115. The Y-axis direction moving mechanism 110 includes a Y-axis drive motor 111 that generates a driving force for moving the work table 108 and the tool magazine 112 integrally in the Y-axis direction, a screw feed mechanism (not shown), and a linear guide. (Not shown) is provided on the bed.

As shown in FIGS. 3 to 6, the tool magazine 112 is a mechanical device that detachably holds a plurality of processing tools 104 held by the main shaft 102 and holds the closing body 114 in a fixed manner, and moves in the Y-axis direction. It is provided on a magazine support 113 that extends rearward in the Y-axis direction and upward in the Z-axis direction from the rear end portion of the mechanism 110. The tool magazine 112 has a plurality of holding portions 112 a for holding the processing tool 104 and one closing body 114 arranged in an annular shape, and one holding portion 112 a or closing body is controlled by the operation control of the control device 120. 114 is positioned on the main shaft 102 side. The tool magazine 112 is provided on the rear side of the machine tool 100, which is one side of the work table 108 in the Y-axis direction of movement by the Y-axis direction moving mechanism 110. 1 and 2 to 5, the workpiece WK is indicated by a two-dot chain line.

The closing body 114 is a machining tool held by the spindle 102 when performing a process of exchanging the work table 108 on the Y-axis direction moving mechanism 110 while closing and opening a communication opening 118 of a machining area partition 117 described later. It is a steel plate part for securing a retreat area 104, and is formed in a concave shape protruding from the processing area partition 117 to the tool magazine 112 side. More specifically, as shown in FIG. 7, the closing body 114 is recessed in a concave shape so that the machining tool 104 having the maximum size that can be held by the spindle 102 can be retracted without physical interference when the work table 108 is replaced. Is formed. In this case, the closing body 114 is formed in a shape in which the left and right side surfaces narrow toward the tool magazine 112 side and the bottom surface is inclined upward toward the tool magazine 112 side. Further, the closing body 114 is provided with an elastic body such as a rubber piece at an outer edge portion, and is in close contact with the communication opening 118.

The bed 115 is a structure that mainly supports the column 105, the Y-axis direction moving mechanism 110, and the workpiece changing mechanism 116, and serves as a foundation of the machine tool 100, and is formed in a trapezoidal shape by combining a casting material and a steel plate material. ing. The workpiece exchanging mechanism 116 is a mechanical device for exchanging the workpiece WK that the machine tool 100 performs machining by exchanging the work table 108 on the Y-axis direction moving mechanism 110 with another work table 108. The Y-axis direction moving mechanism 110 is provided at the front end of the machine tool 100 which is the other end of the work table 108 in the Y-axis direction moving direction.

The workpiece exchange mechanism 116 includes two workpiece tables 108 arranged on both sides in the Y-axis direction with respect to the workpiece exchange mechanism 116, that is, the workpiece table 108 on the Y-axis direction moving mechanism 110 and the Y-axis direction moving mechanism 110. After simultaneously lifting the work table 108 to be moved upward, a hydraulic cylinder (not shown) and / or an electric motor (not shown) for rotating and lowering the work table 108 by 180 degrees about the work exchange mechanism 116 as a rotation center. ) And the like.

As shown in FIG. 8, the workpiece exchange mechanism 116 is configured such that the holding portion 112 a of the tool magazine 112 is positioned immediately below the spindle 102, that is, at a position where the machining tool 104 is exchanged with respect to the spindle 102. Are provided at positions where the work table 108 can be exchanged. In this embodiment, the position at which the tool magazine 112 executes the processing for exchanging the machining tool 104 with respect to the main shaft 102 is set as the limit position where the Y-axis direction moving mechanism 110 can move forward in the Y-axis direction of the machine tool 100. The work table 108 is provided at a position where the work table 108 can be exchanged with respect to the work table 108 positioned at the movable limit position in the Y-axis direction. In this embodiment, the workpiece replacement mechanism 116 is provided on the Y axis direction (that is, on the center line in the X axis direction) at the center position of the movable range of the machining head 101 in the X axis direction.

The machining area partition 117 partitions a space between the work table 108 and the tool magazine 112 to prevent scattering of cutting waste and machining fluid to the tool magazine 112 during machining on the work table 108. It is a shaped part and extends along the X-axis direction while standing on the Y-axis direction moving mechanism 110. The machining area partition 117 is behind the work table 108 on the Y-axis direction moving mechanism 110 (on the tool magazine 112 side), and the machining tool 104 held by the tool magazine 112 by the rotational driving of the tool magazine 112 and The closing bodies 114 are formed at positions where they do not physically interfere with each other. In the present embodiment, the processing area partition 117 is formed in a concave shape as seen from the tool magazine 112 side by projecting a steel plate to the work table 108 side. A communication opening 118 is formed at the center in the X-axis direction of the processing area partition 117.

The communication opening 118 is a part through which the main shaft 102 passes when the processing tool 104 is exchanged with respect to the main shaft 102 or when the work table 108 is exchanged. The processing tool held by the main shaft 102 104 is constituted by a rectangular through-hole in front view that does not physically interfere.

The control device 120 is configured by a microcomputer including a CPU, a ROM, a RAM, and the like. The control device 120 comprehensively controls the overall operation of the machine tool 100, and a machining program (a so-called NC (not shown) prepared by an operator. Machining is performed on the workpiece WK by executing (Numerical Control) program). Specifically, the control device 120 controls each operation of the main shaft drive motor 103, the Z-axis drive motor 106, the X-axis drive motor 107, the Y-axis drive motor 111, the tool magazine 112, and the workpiece change mechanism 116 to control the machining tool. The workpiece 104 is moved relative to the workpiece WK in three orthogonal directions including the X-axis direction, the Y-axis direction, and the Z-axis direction to cut the workpiece WK, to replace the work table 108, and to change the processing tool 104. Each exchange process is executed.

The operation panel 121 is connected to the control device 120. The operation panel 121 includes an input device including a switch group that receives an instruction from an operator and inputs the instruction to the control device 120 and a liquid crystal display device that displays an operation status of the control device 120. Is provided on an outer peripheral cover (not shown).

The outer peripheral cover covers the periphery of the machining head 101, the column 105, the work table 108, the Y-axis direction moving mechanism 110, the tool magazine 112, the bed 115, the work exchange mechanism 116, and the machining area partition 117, and cutting waste and machining fluid. It is a part for preventing scattering of the metal, and is made of a metal plate. In this case, in the outer peripheral cover, the front side (work table 108 side) of the processing area partition 117 is a processing area, and the rear side (tool magazine 112 side) of the processing area partition 117 is a non-processing area. is there.

In addition, the outer peripheral cover is provided with an opening / closing door (not shown) that is opened and closed by an operator on the front surface that is the front side of the machine tool 100. Further, the machine tool 100 includes an electric power for operating the spindle driving motor 103, the Z axis driving motor 106, the X axis driving motor 107, the Y axis driving motor 111, the tool magazine 112, the workpiece changing mechanism 116, and the control device 120, respectively. Are provided with an external interface for electrically connecting an external device to the controller 120 and the control device 120. However, the description of these configurations not directly related to the present invention will be omitted.

(Operation of machine tool 100)
Next, the operation of the machine tool 100 configured as described above will be described. This machine tool 100 constitutes one process of processing the workpiece WK by being arranged alone in a factory for processing the workpiece WK or incorporated in a processing line. In the present embodiment, the exchange process of the work table 108 and the exchange process of the machining tool 104 will be described, and detailed description of the machining of the workpiece WK by executing a machining program not directly related to the present invention will be omitted. 6 to 10, the machining tool 104 is indicated by a two-dot chain line.

First, when the machine tool 100 performs machining on the workpiece WK, the control device 120 controls the operation of the tool magazine 112 and indexes the closing body 114 to the main spindle 102 side. As a result, in the machine tool 100, since the communication opening 118 in the machining area partition 117 is closed by the closing body 114, the workpiece WK is prevented while preventing cutting waste and machining fluid from scattering to the tool magazine 112 side. Can be machined.

Next, when the machine tool 100 executes the replacement process of the processing tool 104, the control device 120 controls the operation of the tool magazine 112 and receives the processing tool 104 held by the spindle 102, as shown in FIG. The holding part 112a is indexed to the main shaft 102 side. Next, as shown in FIG. 8, the control device 120 controls each operation of the X-axis drive motor 107, the Y-axis drive motor 111, and the Z-axis drive motor 106 to hold the tool magazine 112 at a position directly below the main shaft 102. The part 112a is positioned and the processing tool 104 is inserted into the holding part 112a.

Next, as shown in FIG. 10, the control device 120 controls the operation of the tool magazine 112 after controlling the operation of the Z-axis drive motor 106 to raise the processing head 101 and hold the processing tool 104 on the holding portion 112a. And holding part 112a holding the machining tool 104 newly held by the spindle 102 is determined to the spindle 102 side. Next, the control device 120 controls the operation of the Z-axis drive motor 106 to lower the machining head 101 and hold the machining tool 104 held by the holding unit 112a. Thereby, the control apparatus 120 completes the replacement process of the processing tool 104.

When the machining tool 104 is exchanged, the work table 108 is positioned at the work table exchange position in the work exchange mechanism 116 as shown in FIG. Therefore, the control device 120 does not necessarily need to execute the work table 108 replacement process when the machining tool 104 is replaced, but before or after the processing tool 104 replacement process or simultaneously with the replacement process, the work table 108 replacement process. Can also be executed.

Next, the work table 108 replacement process will be described. In the work table 108 replacement process, the control device 120 may or may not perform the machining tool 104 replacement process or may perform the replacement process. First, a case where the machining tool 104 is not exchanged in the work table 108 exchange process will be described.

The control device 120 controls each operation of the X-axis drive motor 107, the Y-axis drive motor 111, and the Z-axis drive motor 106 in a state where the communication opening 118 of the processing area partition 117 is closed with the closing body 114, and the main shaft The holding portion 112 a of the tool magazine 112 is positioned immediately below the position 102. Thereby, the work table 108 is positioned at the work table exchange position in the work exchange mechanism 116. In this case, the machining tool 104 held on the main shaft 102 is formed such that the tool magazine 112 indexes the closing body 114 toward the main shaft 102 and the closing body 114 is recessed in the tool magazine 112 side. Therefore, there is no physical interference with the holding portion 112a or the closing body 114 of the tool magazine 112.

Next, the control device 120 controls the operation of the workpiece exchange mechanism 116 to lift the two work tables 108 facing each other with the workpiece exchange mechanism 116 sandwiched in the Y-axis direction, and then rotates both by rotating 180 degrees. Replace (see FIG. 7). Thus, the control device 120 completes the work table 108 replacement process. In this case, the work table 108 moved on the Y-axis direction moving mechanism 110 (in other words, the work table 108 before processing by the machine tool 100) and the work table 108 moved from the Y-axis direction moving mechanism 110 ( In other words, the work table 108) after being machined by the machine tool 100 is automatically supplied or removed to the front side in the Y-axis direction of the work exchange mechanism 116 by a transfer device (not shown). Further, when the work table 108 is positioned on the front side in the Y-axis direction of the work exchange mechanism 116, only the workpiece WK may be exchanged automatically or manually.

In the exchange process of the work table 108, the control device 120 cannot perform the exchange process of the machining tool 104 because the closing body 114 is disposed opposite to the machining tool 104 held by the spindle 102. For this reason, the control device 120 controls the operation of the tool magazine 112 to control the holding unit before and after the work table 108 replacement process or when the work tool 108 replacement process is performed simultaneously with the work table 108 replacement process. After indexing 112a to the main spindle 102 side, the work table 108 is moved to the work exchange mechanism 116 side.

Thereby, the control device 120 executes the replacement process of the processing tool 104 together with the replacement process of the work table 108 because the spindle 102 is positioned on the holding portion 112a of the tool magazine 112 by positioning the work table 108 with respect to the work replacement mechanism 116. can do. It should be noted that the exchange process of the machining tool 104 and the exchange process of the work table 108 are executed by a machining program (so-called NC program) for machining the workpiece WK created by the operator of the machine tool 100. Alternatively, it may be directly executed alone through the operation of the operation panel 121 by the operator.

As can be understood from the above operation description, according to the above embodiment, the machine tool 100 is positioned at the position of the work table 108 when the tool magazine 112 is positioned at the replacement position of the machining tool 104 with respect to the spindle 102. Since the workpiece exchange mechanism 116 is provided at a position where the workpiece W can be exchanged, the workpiece WK can be exchanged before and after the machining tool 104 exchange processing or during the machining tool 104 exchange. A decrease in processing efficiency can be prevented. Further, in the machine tool 100, since the work exchange mechanism 116 is provided at a position where the work table 108 is farthest from the main spindle 102, the structural freedom of the work exchange mechanism 116 increases, and the structural restrictions increase. Can be prevented.

Furthermore, the implementation of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the object of the present invention.

For example, in the above-described embodiment, the workpiece exchange mechanism 116 is disposed on the same Y axis as the work table 108 and the tool magazine 112 on the Y axis direction moving mechanism 110. However, the work exchange mechanism 116 may be provided at a position where the work table 108 can be exchanged at the position of the work table 108 when the tool magazine 112 is located at the exchange position of the machining tool 104 with respect to the spindle 102. Therefore, the workpiece exchanging mechanism 116 can also be provided at a position shifted to both sides (left and right directions) in the X axis direction from the Y axis line on which the work table 108 and the tool magazine 112 on the Y axis direction moving mechanism 110 are respectively arranged. In this case, the workpiece exchanging mechanism 116 can perform the exchanging process of the work table 108 in the X-axis direction, and the Y-axis direction moving mechanism 110 is configured to be movable in the X-axis direction as in the above embodiment. In addition, the work table 108 can be replaced in the Y-axis direction.

In the above-described embodiment, the work exchanging mechanism 116 includes the work table 108 placed on the Y-axis direction moving mechanism 110 and the work table disposed opposite to the work table 108 via the work exchanging mechanism 116. The table 108 is configured to be exchanged by simultaneously lifting and rotating the table 108. However, the workpiece exchange mechanism 116 only needs to be configured to exchange at least the workpiece WK. Therefore, the work exchanging mechanism 116 is provided with a mechanism for shifting the work table 108 in the X axis direction with respect to the Y axis line of the work table 108 and the tool magazine 112 on the Y axis direction moving mechanism 110 and moves in the XY axis direction. Thus, the work table 108 can be exchanged. The workpiece exchange mechanism 116 can also be configured to exchange the workpiece WK on the work table 108 by directly gripping it using a robot hand or the like.

In the above embodiment, the machine tool 100 is configured to include the machining area partition 117, the communication opening 118, and the closing body 114. However, the machine tool 100 may be configured by omitting the machining area partition 117, the communication opening 118, and the closing body 114. In this case, the machine tool 100 performs machining that the spindle 102 holds before the work table 108 is exchanged so that the machining tool 104 held by the spindle 102 does not collide with the tool magazine 112 when the work table 108 is exchanged. The holding portion 112a into which the tool 104 is inserted is indexed.

WK ... Workpiece,
100 ... Machine tool,
DESCRIPTION OF SYMBOLS 101 ... Machining head, 102 ... Spindle, 103 ... Spindle drive motor, 104 ... Machining tool, 105 ... Column, 106 ... Z-axis drive motor, 107 ... X-axis drive motor, 108 ... Work table,
DESCRIPTION OF SYMBOLS 110 ... Y-axis direction moving mechanism, 111 ... Y-axis drive motor, 112 ... Tool magazine, 112a ... Holding part, 113 ... Magazine support | pillar, 114 ... Blocking body, 115 ... Bed, 116 ... Work change mechanism, 117 ... Processing area partition Body, 118 ... communication opening,
120... Control device, 121.

Claims

A work table for holding the workpiece;
A spindle that is disposed opposite to the work table and holds a machining tool for cutting the workpiece so as to be rotationally driven;
Provided on one side of the Y-axis direction where the work table reciprocates so as to reciprocate integrally with the work table in the Y-axis direction, and a plurality of the processing tools can be attached to and detached from the main shaft. A tool magazine to hold,
A Y-axis direction moving mechanism for reciprocally moving the work table and the tool magazine with respect to the main shaft in the Y-axis direction orthogonal to the rotation axis direction of the main shaft;
A workpiece exchanging mechanism for exchanging at least the workpiece on the work table with another workpiece,
The workpiece exchange mechanism is
A machine tool, wherein the tool magazine is provided at a position where the workpiece can be exchanged at a position of the work table when the machining magazine is located at an exchange position of the machining tool with respect to the spindle.
In the machine tool according to claim 1,
The workpiece exchange mechanism is
A machine tool, wherein the work table is provided at a position on the other side in the Y-axis direction where the work table reciprocates.
In the machine tool according to claim 1 or 2,
The workpiece exchange mechanism is
A machine tool, wherein the workpiece is exchanged by exchanging the work table.
The machine tool according to any one of claims 1 to 3, further comprising:
A processing region partition that partitions the space between the work table and the tool magazine;
A communication opening provided in the processing region partition for communicating the work table side and the tool magazine side;
A closing body provided in the tool magazine for closing the communication opening so as to be openable and closable;
The processing area partition is
It is provided on the worktable side from the replacement position of the machining tool with respect to the main shaft on the Y-axis direction,
The occlusion body is
Projecting in a concave shape toward the tool magazine with respect to the machining area partition so as to cover the communication opening while surrounding a part of the periphery of the machining tool held by the spindle positioned at the machining tool replacement position. A machine tool characterized by being formed.
The machine tool according to any one of claims 1 to 4, further comprising:
A control device for controlling each operation of the tool magazine, the Y-axis direction moving mechanism, and the workpiece exchange mechanism;
The control device includes:
A machine tool characterized in that when the tool magazine is positioned at a position where the machining tool is exchanged with respect to the spindle and the machining tool is exchanged, the workpiece is also exchanged.