WO2016027328A1

WO2016027328A1 - Machining center

Info

Publication number: WO2016027328A1
Application number: PCT/JP2014/071761
Authority: WO
Inventors: 周一平田; 和哉浅川
Original assignee: 富士機械製造株式会社
Priority date: 2014-08-20
Filing date: 2014-08-20
Publication date: 2016-02-25
Also published as: JP6420349B2; JPWO2016027328A1

Abstract

A machining center that is configured so that a tool magazine (120) is accommodated inside a machine body on top of which a head moving device and a head lifting device are supported, and that is configured so as to have a magazine moving device (150) that moves the tool magazine (120), so that the tool magazine (120) is moved forward to project from an opening provided in the front face of the machine body when exchanging tools, and so that, while the tool magazine (120) is positioned at the front end, a tool holder (130) to be subject to an exchange among a plurality of tool holders is positioned in a region in which the main shaft is moved by the head moving device (66). A cover (124) to cover the opening of the machine body is configured to open and close together with the tool magazine (120) being moved by the magazine moving device (150).

Description

Machining center

The present invention relates to a machining center capable of automatically replacing a tool attached to a spindle.

In the following Patent Document 1, (A) a spindle head having a spindle to which a tool is attached and a spindle rotating device that rotates the spindle, (B) a head lifting device that moves the spindle head in the vertical direction, and (C) A head moving device that moves the spindle head in two directions orthogonal to each other along a horizontal plane; (D) a work table that holds the workpiece; and (E) a plurality of tools that each hold a tool attached to the spindle. A tool magazine having a tool holder and storing a plurality of tools, and one of the tools stored in the tool magazine and a tool attached to the spindle can be automatically exchanged. A type machining center, a machining center with a so-called automatic tool changer is described.

JP 2011-230265 A

The machining center described in Patent Document 1 is provided with a cover that closes a portion where the tool magazine is accommodated so that cutting waste or the like does not enter. In the machining center described in Patent Document 1, a cover is also arranged alongside a plurality of tool holders, and the cover also circulates together with the tool holder. In a normal state, the cover accommodates the place where the tool magazine is accommodated. However, the machining center described in Patent Document 1 has a problem that a tool holder used for replacement cannot be positioned at a predetermined position prior to tool replacement work. In other words, it is considered that a machining center equipped with such an automatic tool changer can be improved in practicality by making improvements. This invention is made | formed in view of such a situation, and makes it a subject to provide a highly practical machining center.

In order to solve the above problems, the machining center of the present invention is
It has a machine body that supports the head moving device and the head lifting device on its upper part, and is configured so that a tool magazine is accommodated inside the machine body,
A magazine moving device that moves the tool magazine, and when changing the tool, the tool magazine is advanced so as to protrude from an opening provided on one side of the machine body, and the tool magazine is positioned at the forward end. It is comprised so that what is provided for exchange among a plurality of tool holders may be located in the field where a main axis is moved by a head moving device,
A cover for closing the opening of the machine main body and opening and closing as the tool magazine is moved by the magazine moving device is provided.

According to the machining center of the present invention, it is possible to move the tool magazine by the magazine moving device and position it within the moving area of the main spindle, so there is no need to widen the moving area of the main spindle for tool replacement. Can be made compact. Further, the machining center of the present invention can place a tool holder for replacement in advance at a predetermined position in the machine body with the cover closed. That is, according to the machining center of the present invention, the tool change time can be shortened.

It is a perspective view which shows the system relevant to the machining system with which the machining center which is one Embodiment of this invention is mounted in the viewpoint from the right front. It is a perspective view which shows the system shown in FIG. 1 in the state from which some exterior panels were open | released in the viewpoint from the left front. It is a perspective view which shows the system shown in FIG. 1 in the state which removed the exterior panel in the viewpoint from the left front. It is a perspective view which shows the apparatus which shows the apparatus which conveys the workpiece | work employable to the system shown in FIG. It is a perspective view which shows a mode that the working machine module shown in FIG. 3 was pulled back from the base. It is a perspective view which shows the machining center which is embodiment of this invention in the viewpoint from the left front. It is a perspective view which shows the machining center which is embodiment of this invention in the viewpoint from the right front. It is a perspective view shown in the viewpoint from the diagonal upper direction which shows the tool magazine with which the machining center shown in FIG. 6 is provided. It is a perspective view shown in the viewpoint from the diagonally lower direction which shows the tool magazine with which the machining center shown in FIG. 6 is provided. It is a schematic diagram which shows a mode that the linear movement of a tool magazine and the rotation operation of a pair of doors interlock | cooperate.

Hereinafter, an example of a machining center according to an embodiment of the present invention will be described with reference to the drawings. In addition, the present invention can be implemented in a mode in which various modifications are made based on the knowledge of those skilled in the art, in addition to the following embodiments.

<System configuration related to a machining system on which the machining center of the present invention is mounted>
First, before describing a machining system on which a machining center according to an embodiment of the present invention is mounted, a machining system related to the system (hereinafter, simply referred to as “related system”) will be described. As shown in FIGS. 1 to 3, the related system includes a base 10 and four work machine modules 12 (hereinafter simply referred to as “modules”) arranged and placed on the base 10. It is configured to include. FIG. 1 shows a state where the exterior panel is stretched, FIG. 2 shows a state where a part of the exterior panel is opened, and FIG. 3 shows a state where the exterior panel is removed. Has been. In the following description, the side on which the operation panel 14 is provided is referred to as the front side, and “front / rear”, “left / right”, and “up / down” related to the system are viewed from the front side of the system. , Treated as upper and lower. That is, the left-right direction in which the four modules 12 are arranged is the arrangement direction, and the front-rear direction is an intersecting direction that intersects (orthogonally) the arrangement direction.

Each of the four work machine modules 12 shown in FIGS. 1 to 3 is a lathe module in which a lathe is modularized, and is held by a head 18 while rotating a workpiece W4 (see FIG. 3) by a spindle 16. Cutting is performed on the workpiece W4 located at the work position by the cutting tool 20. Incidentally, in this related system, the work is transported across the modules 12 by the work transport device 22. In each module 12, the workpiece transferred by the workpiece transfer device 22 is mounted on a chuck, which is a holder attached to the tip of the spindle 16, by the workpiece transfer device 24. The workpiece that has been processed by the module 12 is transferred from the chuck to the workpiece transfer device 22 by the workpiece transfer device 24, and is transferred to the next module 12 by the workpiece transfer device 22.

Further, in the related system, it is also possible to adopt a work transfer detaching device 26 capable of performing both operations instead of the work transfer device 22 and the work transfer device 24 described above. As shown in FIG. 4, the workpiece transfer / removal device 26 is movable in the arrangement direction along a pair of rails 28 attached to the front surface of the base 10, and transfers workpieces across a plurality of modules 12. Is possible. In addition, the workpiece transfer / removal device 26 includes an articulated arm 30 and a chuck 32 that is provided at the tip of the arm 30 and holds a workpiece. In other words, the workpiece transporting attachment / detachment device 26 can extend the arm 30 to the processing position of the module 12, receive the workpiece from the processing position by the chuck 32, and attach the workpiece to the processing position. It is.

Incidentally, in FIG. 2 and FIG. 3, some of the components and the work are omitted or schematically shown. W1 in FIG. 2 and W4 in FIG. 3 are works positioned at the set work position, W2 in FIG. 2 is a work conveyed across each module 12 by the conveying device, and W3 is in each module 12. 2 schematically shows the space area of the workpiece when it is transferred to the work position.

As can be seen from FIGS. 1 to 3, the four modules 12 have almost the same shape, size, and structure, and are arranged close to each other at a set arrangement pitch in the arrangement direction. Yes. The interval between the modules 12 is 50 mm or less, and actually, the four modules 12 are arranged with almost no gap. Each module 12 has a generally rectangular parallelepiped shape, and the horizontal dimension (hereinafter sometimes referred to as “module width”) is the same as the longitudinal dimension (hereinafter sometimes referred to as “module length”). It is considerably small. And the base 10 has the dimension of the left-right direction substantially the same as the dimension of the left-right direction of the whole four modules 12 when the four modules 12 are mounted. In other words, the base 10 has such a size that the four modules 12 are just placed in the left-right direction.

The base 10 includes two base units 34 that are aligned and fixed to each other. As shown in FIG. 5, each base unit 34 can mount two modules 12. Each of these two base units 34 is standardized and has the same shape, size, and structure.

As shown in FIG. 5, each base unit 34 is provided with a number of rail pairs 36 corresponding to the number of modules mounted thereon, specifically, two rail pairs 36 arranged side by side in the arrangement direction. It has been. One rail pair 36 is composed of a pair of rails 38 laid so as to extend in the intersecting direction (front-rear direction) at an interval. The rail 38 defines a track along which the module 12 moves when the module 12 is pulled out. On the other hand, in each module 12, a pair of wheels 40 on the front and rear sides, that is, two pairs of wheels 40 are rotatably held by a bed 42. As these two pairs of wheels 40 roll on a pair of rails 38, the module 12 can be easily pulled out of the base unit 34 on both sides in the crossing direction, more specifically on the front and rear sides. It is possible. Incidentally, the rightmost module 12 in FIG. 2 and the second module 12 from the right in FIG. 3 are drawn forward in the crossing direction.

Furthermore, the module 12 can be pulled out before it can be detached from the base unit 34. FIG. 5 shows a state in which the module 12 is pulled out from behind using the carriage 44. The carriage 44 has a pair of rails 46 having the same cross-sectional shape and the same interval as the pair of rails 36 provided in the base unit 34, and the pair of rails 46 has a pair of rails 38. Set against base 10 to extend. In this state, a part or the whole of the module 12 can be moved onto the carriage 44.

<Configuration of a machining system on which the machining center of the present embodiment is mounted>
As described above, the related system described above can be pulled out before each lathe module 12 is detached from the base 10, and can be replaced with another work machine module, for example, as shown in FIGS. It is possible to exchange with another work machine module 50. The work machine module 50 is a module in which a vertical machining center is modularized. As will be described in detail later, the work machine module 50 performs a cutting process on a work W5 fixed and held on a work table by a drill, an end mill, or the like. In the following description, this work machine module 50 may be referred to as a drill mill module 50. The drill mill module 50 is a machining center according to an embodiment of the present invention.

The drill mill module 50 uses the same bed 42 as the lathe module 12 and has the same module width. In other words, the module width of the drill mill module 50 is made considerably smaller than the dimension in the front-rear direction, similarly to the lathe module 12. Hereinafter, the configuration of the drill mill module 50 that realizes the small module width and the configuration of the machining system that includes the drill mill module 50 will be described in detail.

As shown in FIGS. 6 and 7, the drill mill module 50 includes a bed 42 that rotatably holds a plurality of wheels 40, a module main body 52 that is provided on the bed 42 and performs a processing operation, and the module main body. And a control panel 54 for controlling 52. The module main body 52 includes a machine main body 60 fixed on the bed 42, a spindle head 62 that holds the tool at the lower end, a head lifting device 64 that moves the spindle head 62 in the vertical direction, and the spindle head 62. A head moving device 66 that moves along a horizontal plane by moving in two orthogonal directions, and a work table 68 that holds the work W5 are provided.

The machine body 60 supports a head moving device 66 and a head lifting device 64 at the upper part of the machine body 60. A first slider 70 is supported on the upper portion of the machine body 60 so as to be slidable in the front-rear direction by a pair of guide rails 72 provided on the first slider 70 and a plurality of bearings 74 provided on the machine body 60. Has been. The first slider 70 is moved in the front-rear direction by a front-rear movement mechanism including a front-rear movement motor 76 and a ball screw mechanism. Further, a second slider 80 as a head holding body for holding the spindle head 62 slides in the first slider 70 in the left-right direction along a pair of guide rails 82 provided on the front surface of the first slider 70. Supported as possible. The second slider 80 is moved in the left-right direction by a left-right moving mechanism including a left-right moving motor 84, a ball screw mechanism 86, and the like. That is, the head moving device 66 includes the first slider 70, a pair of guide rails 72, a bearing 74, a forward / backward moving mechanism, a second slider 80, a pair of guide rails 82, a left / right moving mechanism, and the like. It is.

The spindle head 62 is supported by the second slider 80 so as to be slidable in the vertical direction by a pair of guide rails 90 provided on the spindle head 62 and a plurality of bearings 92 provided on the second slider 80. . The head lifting / lowering device 64 includes a head lifting / lowering motor 94 and a ball screw mechanism as main components, and the spindle head 62 is moved in the vertical direction by the head lifting / lowering device 64.

The spindle head 62 is supported at a position ahead of the front surface of the machine body 60 by the configuration of the head moving device 66 and the head lifting device 64 as described above. The spindle head 62 is a spindle rotation mainly composed of a spindle 100 that extends in the vertical direction and is held at the lower end by a drill or end mill as a tool, and a spindle rotation motor 102 that rotates the spindle 100 about its axis. Device.

The work table 68 is supported in a state of protruding forward from the front surface of the machine body 60. The module main body 52 includes a table rotating device 106 that rotates the work table 68 about an axis extending in the front-rear direction, and can be processed with a tool while the work W5 is inclined. Note that the table rotating device is not limited to the front-rear direction, and employs a device that rotates about the axis extending in the left-right direction, or a device that rotates between the front-rear direction and the left-right direction, that is, about the axis extending in the horizontal direction. It is also possible. Furthermore, the table rotating device may be one that rotates around the vertical axis, or one that rotates both around the horizontal axis and around the vertical axis.

In the machining system, the workpiece is carried from the adjacent module to the workpiece table 68 by the workpiece conveying / detaching apparatus 26 having the articulated arm 30 shown in FIG. The completed work is transported from the work table 68 to the next module.

The drill mill module 50 performs cutting while applying coolant to the workpiece when cutting the workpiece. Further, cutting waste is generated in the cutting process. This machining system has a configuration in consideration of the coolant and cutting waste. Specifically, as shown in FIGS. 6 and 7, a coolant tank 110 for containing a coolant is built in the base unit 34. A receiving port 112 for receiving coolant and cutting waste in the coolant tank 110 is provided on the upper surface of the front side of the base unit 34 so as to be positioned below the work table 68 provided on the front side of the module body 60. Is provided. Although the detailed description of the coolant tank 110 is omitted, a screw conveyor is provided inside the coolant tank 110 so that the coolant and the cutting waste are separated so that only the cutting waste is sent to the rear side of the coolant trunk 110. It is configured. The coolant tank 110 protrudes behind the base unit 34, and a discharge duct 114 of the screw conveyor is disposed at the protruding rear end. That is, the cutting waste generated at the work position on the front side of the module 50 is sent to the rear side by the screw conveyor in the coolant tank 110 and is discharged to the rear side of the system through the discharge duct 114. It is. In addition, the cutting waste discharging apparatus which discharges the cutting waste which the base 10 received including the coolant tank 110, a screw conveyor, etc. from the back side of the base 10 is comprised.

The drill mill module 50 includes a tool magazine 120 that stores a plurality of tools attached to the main shaft 100, and one of the plurality of tools stored in the tool magazine 120 is attached to the main shaft 100. The tool can be automatically replaced with the existing tool. The tool magazine 120 is accommodated in the machine main body 60, and protrudes from an opening provided on the front surface of the machine main body 60 as shown in FIG. During the machining operation by the drill mill module 50, as shown in FIG. 6, the opening is closed by the cover 124, and coolant, cutting waste, etc. enter the inside of the machine body 60, and the tool magazine Adhering to a tool or the like housed in 120 is prevented.

As shown in FIG. 8, the tool magazine 120 has a plurality of tool holders (hereinafter sometimes simply referred to as “holders”) 130, and each holds the tool in a vertically extending posture. . In other words, the tool magazine 120 accommodates a plurality of tools such that the respective axes are parallel. As shown in FIG. 8A, one or more holders 130 normally do not hold a tool and are open to receive a tool attached to the main shaft 100. Incidentally, T in FIG. 8 schematically shows the storage space area of the tool held by each holder 130.

The plurality of tool holders 130 are arranged along an ellipse that is long in the front-rear direction (cross direction). Specifically, the tool magazine 120 has two sprockets 132 and a roller chain 134 spanned between them, and a plurality of tool holders 130 are fixed to the roller chain 134, so The tool holders 130 are arranged along an ellipse that is long in the intersecting direction. In other words, the tool magazine 120 has a plurality of tool holders 130 arranged along an ellipse, so that the dimension in the left-right direction (arrangement direction) is reduced.

The tool magazine 120 has a sprocket drive motor 136 for rotationally driving the sprocket 132 on the front side (right side in the drawing), and a speed reducer 138 for transmitting the rotation of the sprocket drive motor 136 to the sprocket 132. . The tool magazine 120 can rotate the roller chain 134 and rotate the plurality of tool holders 130 by rotating the sprocket 132 by the sprocket driving motor 136. That is, the tool holder rotating mechanism is configured by including the two sprockets 132, the roller chain 134, the sprocket driving motor 136, and the reduction gear 138.

The tool magazine 120 is movable in the front-rear direction by a pair of guide rails 150 fixed in a posture extending in the front-rear direction inside the machine body 60 and a bearing 152 as a guided portion fixed to itself. It is said that. The drill mill module 50 includes a magazine moving device 150 that moves the tool magazine 120 in the front-rear direction. The magazine moving device 150 includes a ball screw mechanism 154 and a magazine moving motor 158 that rotates the ball screw 156 of the ball screw mechanism 154. The nut 160 of the ball screw mechanism 154 is fixed to the lower surface of the tool magazine 120. By rotating the ball screw mechanism 154 by the magazine moving motor 158 fixed to the machine body 60, the entire tool magazine 120 is moved in the front-rear direction. It is possible to move to.

The drill mill module 50 is configured such that the tool magazine 120 is advanced by the magazine moving device 150 and the front end portion of the tool magazine 120 protrudes from the opening of the machine body 60. In the state in which the tool magazine 120 is located at the forward end, the one that is used for replacement among the plurality of tool holders 130, that is, the one that is located at the front end, is an area in which the spindle 100 is moved by the head moving device 66. The tool of the main shaft 100 is exchanged with respect to the holder 130 located at the front end thereof.

Describing in detail the tool replacement, first, the tool magazine 120 is advanced by the magazine moving device 150, and the spindle 100 is moved to the replacement position by the head moving device 66. In the tool magazine 120, a holder 130 that does not hold a tool is positioned at the front end of the tool magazine 120 prior to tool replacement. The holder 130 is configured to be gripped by two claws, and the main shaft 100 is moved rearward, and a tool attached to the main shaft 100 is fitted through a gap between the two claws of the holder 130. 130. Next, the main shaft 100 is raised, and the tool is detached from the main shaft 100. Subsequently, the tool holder 130 is rotated so that the tool attached to the spindle 100 is positioned at the front end of the tool magazine 120. Then, the spindle 100 is lowered and a tool is attached to the spindle 100. Next, the spindle 100 is moved forward and the tool magazine 120 is retracted, whereby the tool is extracted from the holder 130, and the tool replacement is completed.

In addition, as described above, the cover 124 is provided at the opening of the machine body 50 through which the tool magazine 120 enters and exits so as to be openable and closable. The cover 124 is a double door having a pair of doors 170, and each of the pair of doors 170 is rotatable about an axis extending in the vertical direction. The machining center 52 is configured such that the pair of doors 170 are rotated about the rotation axis of the door in conjunction with the linear movement of the tool magazine 120 in the front-rear direction by the magazine moving device 150. That is, the pair of doors 170 is opened in conjunction with the advance of the tool magazine 120, and the pair of doors 170 is closed in conjunction with the backward movement of the tool magazine 120.

Hereinafter, an interlocking mechanism that interlocks the rotation of the pair of doors 170 with the linear movement of the tool magazine 120 will be described in detail. A pair of cam plates 174 in which slots 172 are formed are provided on the lower front side of the tool magazine 120. The slot 172 extends in a direction orthogonal to the moving direction of the tool magazine 120 as shown in FIG. On the other hand, a support bar 176 is fixed to each of the pair of doors 170 so as to be orthogonal to the rear surface thereof, and the support bar 176 supports the roller 178 rotatably at the rear end. The roller 178 is engaged with the slot 172 of the cam plate 174 and can roll in the slot 172. That is, the cam mechanism 180 is configured including the slot 172 and the roller 178, and the slot 172 functions as a cam groove and the roller 178 functions as a cam follower. Further, a spring 182 as an elastic body is interposed between the rear end surface of the cam plate 174 and the front end surface of the tool magazine 120 where the cam plate 174 is supported.

When the tool magazine 120 is advanced by the magazine moving device 150, the cam plate 174 in which the slot 172 is formed is also advanced, and the roller 178 is advanced while rolling in the slot 172 as shown in FIG. Each of the pair of doors 170 is pushed forward through the support bar 176 and rotated about the rotation axis of the door 170. That is, each of the pair of doors 170 is opened. When the tool magazine 120 is advanced, the front end portion of the tool magazine 120 is not in contact with the back surfaces of the pair of doors 170.

Further, as shown in FIG. 10G, each of the pair of cam mechanisms 172 has a cam follower 176 in a state where each of the pair of doors 170 is opened until it is parallel to the moving direction of the tool magazine 120. Is positioned at the outer end of the cam groove 174. That is, even if a forward force is applied to the cam member 178, the cam mechanism 174 cannot operate, so the cam member 178 cannot advance and the door 170 cannot be opened any further. Therefore, a part of the door 170 does not enter the work area of the adjacent module. As shown in FIG. 10H, the tool magazine 120 moves relative to the cam member 178 and moves to the forward end while compressing the spring 180 as shown in FIG. Therefore, this interlocking mechanism is opened until each of the pair of doors 170 is parallel to the moving direction of the tool magazine 120 before the tool magazine 120 is positioned at the forward end.

Since the drill mill module 50 that is the machining center of the present embodiment described above can move the tool magazine 120 by the magazine moving device 150 and can be positioned in the moving region of the main shaft 100, the main shaft 10 It is not necessary to widen the movement area for tool replacement, and it is compact. Further, the machining center 50 can shorten the tool change time because the tool holder 130 to be replaced in advance can be positioned at the front end of the tool magazine in the machine body 60 with the cover 124 closed. It is possible.

In the machining center 50 of the present embodiment, the cover 124 is composed of a pair of doors 170, but it is also possible to employ a single door, a shutter (an armor door), or the like. However, since the cover 124 of the machining center 50 is composed of a pair of doors 170, there is no need for a storage space (door pocket) when opened like a shutter-type cover, so that the machining center can be made compact. It has been. Moreover, the machining center of the present invention may include a drive source for opening and closing the cover. The machining center 50 of the present embodiment is configured such that the cover 124 is opened and closed in conjunction with the movement of the tool magazine 120 by the magazine moving device 150, so that there is no need for a drive source for opening and closing the cover. The machining center is compact.

Furthermore, the machining center 50 of the present embodiment is configured such that each of the pair of doors 170 is opened until the tool magazine 120 is parallel to the moving direction of the tool magazine 120 before the tool magazine 120 is positioned at the forward end. Has been. For this reason, as shown in FIG. 10G, the distance L between the rotation axis of the pair of doors 170 and the side surface of the tool magazine 120 can be reduced. Therefore, the width of the machine body 60 (dimension in the arrangement direction), that is, the width of the machining center 50 is reduced. Since the machining center 52 thus made compact is connected to the above-described compact machining system in which a plurality of work implement modules are arranged, it is particularly effective for such a machining system.

10: Base 12: Work machine module (lathe module) 26: Work transfer attachment / detachment device 34: Base unit 36: Rail pair 38: Rail 40: Wheel 42: Bed 44: Bogie 46: Rail 50: Drill mill module [machining center] 52 : Module main body 60: Machine main body 62: Spindle head 64: Head lifting device 66: Head moving device 68: Work table 70: First slider 76: Front / rear moving motor 80: Second slider 84: Left / right moving motor 94: Head Lifting motor 100: Spindle 102: Spindle rotation motor 106: Table rotation device 110: Coolant tank 112: Receiving port 114: Discharge duct 120: Toolma Jin 124: Cover 130: Tool holder 132: Sprocket 134: Roller chain 136: Sprocket drive motor 150: Guide rail 152: Bearing [guided part] 154: Ball screw mechanism 158: Magazine movement motor 170: 1 Pair of doors 174: Slot [cam groove] 178: Roller [cam follower] 180: 1 pair of cam mechanism 180: Spring [elastic body]

Claims

(A) a spindle head having a spindle to which a tool is attached and a spindle rotating device for rotating the spindle; (B) a head lifting device for moving the spindle head in the vertical direction; and (C) the spindle head orthogonal to each other. A head moving device that moves along a horizontal plane by moving in two directions, (D) a work table that holds a workpiece, and (E) a plurality of tool holders each holding a tool attached to the spindle. And a tool magazine for storing a plurality of tools, and one of the plurality of tools stored in the tool magazine and a tool attached to the spindle can be automatically replaced. And
It has a machine main body that supports the head moving device and the head lifting device at its upper part, and is configured so that the tool magazine is accommodated inside the machine main body,
A magazine moving device for moving the tool magazine, and when changing the tool, the tool magazine is advanced so as to protrude from an opening provided on one side surface of the machine body, and the tool magazine is positioned at the forward end. In the state, it is configured to position one of the plurality of tool holders to be replaced within an area in which the main shaft is moved by the head moving device, and
A machining center provided with a cover that closes the opening of the machine body and opens and closes as the tool magazine is moved by the magazine moving device.
The magazine moving device includes a guide rail provided in the machine body and a guided portion fixed to the tool magazine and guided along the guide rail in a direction in which the tool magazine is guided. Configured to move in a straight line,
The cover is a double door having a pair of doors, each of the pair of doors is configured to be rotatable about an axis extending in the vertical direction, and
The machining center according to claim 1, further comprising an interlocking mechanism that rotates each of the pair of doors in conjunction with linear movement of the tool magazine.
The interlocking mechanism is
Before the tool magazine is advanced by the magazine moving device and positioned at the advanced end, each of the pair of doors is configured to be opened until parallel to the moving direction of the tool magazine. The machining center according to claim 2.
The interlocking mechanism is
Each corresponding to the pair of doors, each of which (a) is provided in the tool magazine and extends in a direction perpendicular to the moving direction of the tool magazine; and (b) the pair of doors. Including a pair of cam mechanisms that are fixedly provided with respect to one corresponding to the cam and have a cam follower that engages with the cam groove;
Each of the pair of cam mechanisms
The cam follower is positioned at one end of the cam groove when the tool magazine is advanced by the magazine moving device and is opened until the pair of doors are parallel to the moving direction of the tool magazine. The machining center according to claim 2 or claim 3, wherein
The machining center
An elastic body interposed between the cam groove and the tool magazine, and the elastic deformation of the elastic body causes the tool magazine and the pair of doors to be parallel to the movement direction of the tool magazine; The machining center according to claim 4, wherein further advancement is permitted from a position where the position is opened to the end, and movement to the advance end is performed.
The plurality of tool holders are arranged along an ellipse long in the intersecting direction,
The machining center according to any one of claims 1 to 5, wherein the tool magazine has a tool holder rotation mechanism for rotating the plurality of tool holders.
The machining center
A machine system including a base and a plurality of work implement modules arranged on the base and arranged in the arrangement direction is mounted as one of the plurality of work implement modules. The machining center according to any one of claims 1 to 6.
The machining center
8. The machining center according to claim 1, wherein adjacent ones of the plurality of work implement modules are arranged close to each other in the arrangement direction on the base. 9.