JP2011045947A - Horizontal machining center - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a horizontal machining center capable of easily cleaning an upper part of the spindle head. <P>SOLUTION: In the horizontal machining center, the spindle head 5 rotatably supports a spindle 6 and moves in the lateral, vertical, and longitudinal directions within a machining area (A), and a tool holding plate 18 rotated by an indexing motor 16 holds a plurality of tools T. A fixed cover 21 provided for separating the tool holding plate 18 and the machining area (A) has an opening 22 so that the tool T moves into the machining area (A). The opening 22 can be closed by a movable cover 23 attached to the tool holding plate 18. A cleaning member 24 is attached to the movable cover 23, and the cleaning member 24 moves together with the tool holding plate 18 to the machining area (A) when the tool T is exchanged, so that the cleaning member 24 can drop cutting chips deposited on the upper part of the spindle head 5. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a horizontal machining center.

  Conventionally, a plurality of tools are held on a spindle head that rotatably supports a spindle and moves left, right, up, down, and forward and backward in a machining area, and a tool holding plate that is rotated by an indexing motor. A fixed cover provided so as to be separated from the machining area is provided with an opening so that the tool is moved to the machining area, and the opening is closed by a movable cover attached to the tool holding plate. At the time of tool change, the tool holding plate is rotated by the indexing motor, the replacement tool is moved from the opening to the machining area, and the tool is mounted in the spindle mounting hole by moving the spindle head. A horizontal machining center is known.

JP 2000-84774 A

In the above-described horizontal machining center, the workpiece is machined by moving the spindle head left and right, up and down, and back and forth within the machining area. However, a part of the chips generated by machining the workpiece may accumulate on the top of the spindle head, and the chips may enter the spindle mounting hole when changing the tool. If it is attached, there is a problem that affects the mounting accuracy of the tool and leads to a decrease in processing accuracy. For this reason, there is an inconvenience that an operator must periodically clean the upper part of the spindle head. Moreover, there was a possibility that work efficiency may fall by stopping and cleaning a machine regularly.
In view of the above problems, an object of the present invention is to provide a horizontal machining center that can easily clean the upper part of the spindle head.

  In the present invention, a plurality of tools are held on a spindle head that rotatably supports a spindle and moves left, right, up, down, and forward and backward in a machining area, and a tool holding plate that is rotated by an indexing motor. A tool magazine in which an opening is provided in a fixed cover provided to separate the plate and the machining area so that the tool is moved to the machining area, and the opening is closed by a movable cover attached to the tool holding plate When changing the tool, the tool holding plate is rotated by the indexing motor to move the replacement tool from the opening to the machining area, and the tool is mounted in the spindle mounting hole by moving the spindle head. In such a horizontal machining center, a cleaning member is provided in the left-right direction of the movable cover, and when the tool is changed, the cleaning member that moves together with the tool holding plate is moved to the machining area, and the cleaning member moves the cleaning member. Characterized in that so as to drop the chips accumulated on the upper portion of the spindle head. Specifically, the cleaning member is a sheet-shaped rubber material, and when the tool is changed, the cleaning member that moves together with the tool holding plate is moved to the processing region, and the chips accumulated on the top of the spindle head by the cleaning member It is characterized by the fact that it has been removed.

  In the present invention, a part of the chips generated during the processing of the workpiece deposited on the upper part of the spindle head can be dropped from the upper part of the spindle head by a cleaning member that moves together with the tool holding plate when changing the tool. There is no need for the operator to periodically clean the top of the spindle head. Further, since the cleaning is performed by the cleaning member at the time of changing the tool, it is not necessary to stop the machine, thereby preventing a reduction in work efficiency. Further, when the tool is replaced, the movable cover that moves along with the rotation of the tool holding plate is provided with the cleaning member, so that a horizontal machining center that can clean the chips on the upper part of the spindle head with a simple configuration.

It is a side view of the horizontal type machining center of the present invention. It is the XX sectional view taken on the line of FIG. FIG. 2 is a Y view of FIG. 1. It is a figure which shows the operation | movement of a tool exchange. It is a figure which shows the operation | movement of a tool exchange.

  A horizontal machining center 1 shown in FIG. 1 will be described. A movable column 3 that can move in the left-right direction is installed on the bed 2. The moving column 3 is provided with a saddle 4 that can move in the vertical direction. The saddle 4 is provided with a spindle head 5 that can move in the front-rear direction in a horizontal state. A spindle 6 is rotatably supported on the spindle head 5, and a mounting hole 7 for mounting the tool T in a replaceable manner is provided at the tip of the spindle 6. In addition, the inclined surface 5a is formed in the upper part of the spindle head 5 of this embodiment. The moving column 3 moves left and right through a feed shaft 8 that is rotated forward and backward by a left and right moving motor (not shown). The saddle 4 moves up and down via a feed shaft 10 that is rotated forward and backward by a lifting motor 9, and the spindle head 5 passes through a feed shaft (not shown) that is rotated forward and backward by a forward and backward movement motor 11. It is designed to move back and forth. The main shaft 6 is rotated in the forward and reverse directions by a main shaft motor 12 provided at the rear end portion of the main shaft head 5.

A support frame 14 is fixedly attached to a plurality of support pillars 13 standing on the bed 2. A tool magazine 15 is installed on the support frame 14. In the tool magazine 15, a disk-shaped tool holding plate 18 is provided on a rotating shaft 17 rotated by an indexing motor 16, and a number of holding portions 19 are provided on the outer periphery of the tool holding plate 18. The tool T is held in the plurality of holding portions 19 in a replaceable manner. In addition, on the bed 2, a machine body cover that covers the entire machine 1 including the machining area A in order to prevent chips, cutting fluid, and the like generated by machining the workpiece W from scattering from the machining area A to the outside of the machine 1. 20 is provided.
The machine body cover 20 is provided with a fixed cover 21 so as to separate the tool holding plate 18 and the machining area A from each other. As shown in FIGS. 2 and 3, the fixed cover 21 is formed by bending a plate member to form a recess, and the tool T is moved to the machining area A on the bottom surface 21 a of the fixed cover 21. An opening 22 is formed. The opening 22 is closed by a movable cover 23 attached to the tool holding plate 18. The movable cover 23 of this embodiment is formed by bending a plate member, and the bottom length L1 of the movable cover 23 is slightly shorter than the opening length L2 of the opening 22.

  When the tool holding plate 18 is rotated by the indexing motor 16 to open the opening 22 closed by the movable cover 23, the tool T or the spindle to be mounted in the mounting hole 7 of the spindle 6 below the opening 22. One of the holding portions 19 that hold the tool T mounted in the six mounting holes 7 is positioned. A cleaning member 24 made of a sheet-shaped rubber material is attached to the movable cover 23 in the left-right direction by a plurality of bolts 25. In the present embodiment, the cleaning member 24 is a sheet-shaped rubber material, but may be a brush material. A nozzle may be attached and air may be ejected from the nozzle. The mounting position of the cleaning member 24 is adjusted so as to close the gap between the opening length L2 of the opening 22 and the bottom length L1 of the movable cover 23. Further, the cleaning member 24 can be easily bent when contacting the opening 22. In the horizontal machining center 1, the tool T mounted in the mounting hole 7 of the main shaft 6 is rotated at a high speed, and the tool T is moved left and right, up and down, and back and forth so as to machine the workpiece W disposed in front of the moving column 3. It has become.

Next, the tool change operation will be described. When the machining location of the workpiece W changes, the tool is changed. As shown in FIGS. 1 and 2, the moving column 3 and the saddle 4 are moved, and the spindle head 5 in the machining area A is moved to the cleaning position B below the tool magazine 15. Thereafter, as shown in FIG. 4A, the tool holding plate 18 is rotated by the indexing motor 16 to position the holding portion 19a for receiving the tool Ta from the opening 22 into the machining area A, and the tool holding plate. One of the cleaning members 24 provided on the movable cover 23 that moves together with 18 is brought into contact with the upper portion of the spindle head 5 in the machining area A. As a result, the cleaning member 24 removes a part of the chips scattered during the processing of the workpiece W from the upper part of the spindle head 5. Then, as shown in FIG. 4B, the spindle head 5 is moved to the tool changing position C, and the tool Ta mounted in the mounting hole 7 of the spindle 6 of the spindle head 5 is moved to the holding portion 19a of the tool holding plate 18. To hold. Thereafter, the spindle head 5 is moved to the standby position D, and the tool Ta is extracted from the mounting hole 7 of the spindle 6.
Subsequently, the tool Tb to be mounted in the mounting hole 7 of the main shaft 6 is positioned in the machining area A from the opening 22 by the indexing motor 16. Then, as shown in FIG. 5 (a), the spindle head 5 is moved from the standby position D to the tool change position C to install the tool Tb in the mounting hole 7 of the spindle 6, and then shown in FIG. 5 (b). As described above, the spindle head 5 is lowered to disengage the tool Tb from the holding portion 19b. When the tool Tb is detached from the holding portion 19b, the tool holding plate 18 is rotated by the indexing motor 16, and the opening of the opening portion 22 is blocked by the movable cover 23 (state shown in FIG. 2). Thereafter, the above operation is repeated each time the machining location of the workpiece W changes.

  Therefore, a part of the chips generated during the processing of the workpiece W accumulated on the upper portion of the spindle head 5 can be dropped from the upper portion of the spindle head 5 by the cleaning member 24 that moves together with the tool holding plate 18 when changing the tool. It becomes possible, and it becomes unnecessary to regularly clean the upper part of the spindle head 5 by an operator as in the prior art. Moreover, it is not necessary to stop the machine 1 by cleaning with the cleaning member 24 at the time of tool exchange, and it can prevent the fall of work efficiency. Further, when the tool is replaced, the movable cover 23 that moves along with the rotation of the tool holding plate 18 is provided with the cleaning member 24, so that the horizontal machining center that can clean the chips on the spindle head 5 with a simple configuration. 1 can be used. Further, the cleaning member 24 can be formed of an inexpensive sheet-shaped rubber material.

DESCRIPTION OF SYMBOLS 1 Horizontal machining center 5 Spindle head 6 Spindle 15 Tool magazine 16 Indexing motor 18 Tool holding plate 21 Fixed cover 22 Opening part 23 Movable cover 24 Cleaning member T Tool

Claims (2)

A plurality of tools are held by a spindle head that is rotatably supported by the spindle and moves left, right, up, and down in the machining area, and a tool holding plate that is rotated by an indexing motor. A fixed cover provided so as to be separated from each other, an opening is provided so as to move the tool to the machining area, and a tool magazine configured to close the opening with a movable cover attached to the tool holding plate, When changing the tool, the indexing motor rotates the tool holding plate to move the replacement tool from the opening to the machining area, and the tool is mounted in the spindle mounting hole by moving the spindle head. In the machining center, a cleaning member is provided in the left and right direction of the movable cover. When the tool is changed, the cleaning member that moves together with the tool holding plate is moved to the machining area, and the cleaning member moves the spindle head. Horizontal machining center, characterized in that so as to drop the chips accumulated on the parts. The cleaning member is a sheet-shaped rubber material, and when the tool is changed, the cleaning member that moves together with the tool holding plate is moved to the machining area so that the chips accumulated on the upper portion of the spindle head are removed by the cleaning member. The horizontal machining center according to claim 1, wherein the horizontal machining center is provided.

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