JPH0628835B2 - Portable machine tool splatter guard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a machine tool having a vertical spindle for preventing scattering of chips and cutting fluid when machining a workpiece placed on a table of the machine tool. The present invention relates to a splash guard, and more particularly, to a portable splash guard in which a part of the splash guard is formed so that a table of a machine tool can be opened from a guard closed space when necessary.

[Conventional technology and its problems]

A general table moving mode of a machine tool having a vertical spindle is such that a saddle on which a table is placed moves horizontally along one axis on a bed of the machine tool, and the table moves on the saddle on the one axis. It moves in the other horizontal direction along the axis orthogonal to. That is, since the table moves in the directions of two axes orthogonal to each other, the splash guard that covers the entire machine tool needs to have a size that does not interfere with the movement of the table over the entire stroke range of the two axes.
In the past, a simple splash guard was generally used, which was constructed by leaning against a table to surround the front, back, left, and right sides. Since this inevitably interferes with the spindle head and the automatic tool changer, its height is naturally limited, and especially in the case of high-speed cutting, chips and cutting fluid were scattered over this splash guard.

Furthermore, a large splash guard that completely surrounds the entire stroke range of the two axes of the table is satisfactory from the viewpoint of preventing chips and cutting fluid from scattering, but it is necessary to carry out setup work such as mounting and removal of workpieces on the table. In doing so, as well as cleaning chips, inspecting and repairing, the installed splash guard had to be disassembled, removed and reassembled.

Therefore, in order to solve such a problem, the present invention completely prevents scattering of chips and cutting oil, improves accessibility to a table, attaches and detaches a work, cleans and inspects chips. It is intended to provide a portable splash guard for a machine tool which can improve workability such as, and has a simple structure without providing a collecting portion for chips and cutting fluid.

[Means for solving problems]

In view of the above-mentioned object of the present invention, the present invention has a back face of a base of a machine tool having a vertical spindle, and a table on which a workpiece is placed can be moved in two horizontal directions, that is, right and left and front and rear. A rear cover that is fixedly attached to the table and forms a partition surface behind the table; a bottom cover that is provided so as to cover all four circumferences of the table; and a partition surface that forms the front and side partitions of the table, and the rear cover. And a front cover that cooperates with the partition surface to form a partition surface that surrounds the periphery of the bottom cover, and the bottom cover is disposed on the left and right sides of the table so as to be expandable and contractable in the left and right directions, respectively. A left-side telescopic cover and a right-side telescopic cover that cover the lateral movement guide mechanism, and the rear gutter between the rear gutter extending in the left-right direction on the rear side of the table and the rear cover. A rear telescopic cover having one end pivotally attached and the other end pivotally attached to the rear cover so as to be expandable and contractible in the front-rear direction, and having a width dimension substantially equal to the distance between the left and right ends of the rear cover; , One end is pivotally attached to the front gutter between the front gutter extending in the left-right direction on the front side of the table and a support base of the table at a lower portion of the left and right telescopic covers, and the other end is supported by the support. A front telescopic cover that is pivotally attached to the base and is extendable in the front-rear direction, and has a width dimension in the right-left direction that is substantially equal to the distance between the left and right ends of the rear cover, and the shape seen from the top. Is formed in a substantially rectangular shape, and the front cover includes a receiving member that extends around the front cover and a lower portion on both sides of the bottom cover so as to extend around a gap formed between the front cover and the bottom cover, and the front cover. The rear cover And an appropriate number of legs with wheels attached to the front cover so as to be movable independently of each other. The front cover is engaged with the rear cover to keep the table in the cover space. A portable splash guard for a machine tool that can be closed and the front cover can be pulled away from the rear cover to open the table.

[Action]

According to the above means according to the present invention, the front cover can be engaged with the rear cover to close the table in the cover space, and the front cover can be separated from the rear cover to open the table. Further, since the chip and cutting fluid recovery unit is provided on the base side of the machine tool and not on the splash guard side, the structure is simplified.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. 1 to 3 are a front view, a plan view and a side view, respectively, showing a portable splash guard according to the present invention together with a machine tool. FIG. 4 is a detailed enlarged view taken along the line IV-IV in FIG.

First, referring to FIGS. 1 to 3, a guide surface 11 is provided on a bed 10 of a machine tool, and the guide surface 11 moves in the front-rear direction (Y-axis direction) along the guide surface. A possible saddle 12 is mounted. A table 14 is mounted on the saddle 12 and is movable in the left-right direction (X-axis direction) orthogonal to the extension direction of the guide surface 11. Further, a spindle head 18 for attaching and operating a tool is attached to the column 16 of the machine tool so as to be movable in the vertical direction (Z-axis direction). Further, a tool magazine 20 is provided on the left side surface of the column 16 to enable automatic tool exchange with the spindle head 18.

The spindle head 18 and the table 14 perform relative three-axis movements in the X, Y, and Z-axis directions to perform the work of the workpiece, but prevent the scattering of chips and cutting fluid generated at this time. This is necessary from the viewpoint of the work site environment and workability, work efficiency and safety. A splash guard is formed by a rear cover 32 fixed to the column 16 and the bed 10 behind the table 14 of the machine tool and standing upright, and a front cover 30 surrounding the front and left and right sides of the table 14. There is.

Since the front cover 30 is a portable type that can be easily removed according to the need for mounting or removing a large workpiece, the legs 38 with the casters 36 are mounted on the four corners of the bottom surface of the front cover 30. There is. In addition, the left and right ends of the rear cover 32 are respectively 2
The respective stoppers 34 are attached, and the rear ends of both side portions of the front cover 30 are connected to the rear cover 32 via the stoppers 34. Front cover 30 to rear cover 3
In order to completely cover the table 14 of the machine tool by connecting it to the two, it is possible to provide a leg 38 with casters 36 with a freely releasable brake and to substitute the stopper 34.

Further, a central portion of the front portion of the front cover 30 is a pair of sliding doors 40 with a handle 42. The sliding door 40 is for performing light work (work that can be performed by one worker) such as attaching and detaching a light work piece, or roughly cleaning chips. Further, including the sliding door 40, the front cover 30
Front and side windows are transparent (preferably colorless) 44
Is provided. Through this window, the operator can monitor the movement and machining status of the machine tool inside the splash guard.

The upper part of the tool magazine 20 and the upper part of the vertically movable spindle head 18 other than the upper part is also covered with a cover integrated with the front cover 30 to form a more complete splash guard. As a matter of course, the ceiling portion corresponding to the sliding door 40 is different in height by the plate thickness so as to be slidable relative to the ceiling portion corresponding to the fixed portion.

The structure of the lower part of the splash guard will be described below. The work piece installed on the table 14 is processed by a tool to generate chips, and it is very important to automatically process and collect the chips and cutting oil in view of the efficiency of the whole work. It is an issue. In this embodiment, the splash guard has such a function. First, since the table 14 moves to the left and right, the left and right directions of the table 14 are covered by the left telescopic cover 48 and the right telescopic cover 46 that can expand and contract according to the movement. The front of the table 14 and the left and right telescopic covers 46, 48 are covered by a front telescopic cover 50 whose inclination is changed and expandable by a hinge, and the rear is covered by a rear telescopic cover 52 whose inclination is changed and expandable by a hinge similarly to the front. ing. These front and rear telescopic covers 5
The front gutter 78 and the rear gutter 64 are provided at the lower ends of the slopes of 0 and 52, respectively.
And are extended in the left-right direction.

The lower structure will be described in more detail with reference to FIG. The left telescopic cover 48 is provided with three U-shaped covers, the uppermost U-shaped cover 54 is fixed to the table 14, and the lowermost U-shaped cover 56.
Is fixed to the left end of the base of the machine tool. These 3
Since the heights of the covers differ by the plate thickness, they can overlap each other when contracted and can be expanded, but the wiper 4 should be prevented from entering chips in the gap between the covers.
9 is provided for sealing. The right telescopic cover 46 also has the same structure as the left side. The X-axis drive motor 58 serves as a drive source for moving the table 14 in the left-right direction (X-axis direction).

Between the hinge 60 attached to the rear end of the rear gutter 64 fixed to the rear portion of the saddle 12 and another hinge 62 attached to the rear cover 32 and located at a position higher than the hinge 60, a direction between both hinges. A retractable rear telescopic cover 52 is attached to. When the table 14 is placed on the saddle 12 that moves along the guide surface 11 and moves in the front-rear direction (Y-axis direction), the rear telescopic cover 52 is finally moved by its expansion / contraction mechanism and two hinges 60 and 62. Movement is performed between the side position 70 and the foremost position 72 while changing the inclination and the width dimension.

The front telescopic cover 50 has the same mounting structure and operation as the rear telescopic cover 52. First, the hinge 74 attached to the upper front end of the cover portion 88 attached to the front end of the saddle 12 and the hinge 7 attached to the receiving member 90 fixed to the upper front end of the bed 70.
A front telescopic cover 50 that is expandable and contractible in the direction between both hinges with another hinge 76 located at a position lower than 4.
Is installed. When the table 14 moves together with the saddle 12 in the front-rear direction (Y-axis direction) by a Y-axis motor (not shown), the front telescopic cover 50 is moved to the rearmost position 84 by the action of its expansion / contraction mechanism and the two hinges 74 and 76. Movement is performed with respect to the front position 86 while changing the inclination and the width dimension.

A front gutter 78 is attached to the receiving member 90 at a lower front end position of the front telescopic cover 50 which is inclined. The front gutter 78 and the rear gutter 64 are the table 14
Is extended over the entire stroke of the left-right movement.
Therefore, the chips produced by processing the workpiece on the table 14 drop onto the front gutter 78 or the rear gutter 64 via the left and right telescopic covers 46, 48 and the front and rear telescopic covers 50, 52. To do. Since the inclinations of the left and right telescopic covers 46, 48 are small, the chips may stay on the left and right telescopic covers 46, 48 and the table 14. In this case, the operator can easily clean the chips by opening the sliding door 40 described above. Front and rear telescopic covers 50, 52
The chips placed on the table 14 (saddle 12) move forward and backward in accordance with the front-rear position 86 and the rearmost position 7 respectively.
All fall to the front gutter 78 and the rear gutter 64 at the position of 0. At this time, chips may slightly enter the gap 82 between the front gutter 78 and the front cover 30. The lower end of the front cover 30 is formed with a receiver 31 that wraps around the lower portion of the front gutter 78 so as to receive the chips. The upper end of the front telescopic cover 50 is inserted into the flange portions of the left and right telescopic covers 46 and 48, so that the chips are prevented from entering inside. Further, the left and right lower ends of the front cover 30 are also provided with receivers 31 that wrap around the lower portions of the right telescopic cover 46 and the left telescopic cover 48 to prevent the floor cover from leaking. In this way, the right telescopic cover 4
6, a left side telescopic cover 48, a front telescopic cover 50 pivotally mounted on the front gutter 78, and a rear telescopic cover 52 pivotally mounted on the rear gutter 64 are provided with a bottom cover, which is a top cover. When viewed from above, they are arranged in a substantially rectangular shape and cover the four circumferences of the table 14, and there is no gap between the respective telescopic covers. However, all the gaps formed between the bottom cover and the front cover 30 are received by the receiver 31, and there is no leakage of machining waste or cutting oil to the floor surface.

An appropriate number of brackets 66 are fixed to the rear end of the table 14, and a scraping plate 68, which is disposed in the rear gutter 64 and is capable of cleaning the chips in the rear gutter 64, is provided below the bracket 66. Installed. The scraping plate 68 is vertically held so as to clean the chips as the table 14 moves left and right, or is inclined so as not to move the chips.
That is, for example, when the table 14 moves to the left, it is held vertically to move the chips to the left end of the rear gutter 64.
When moving to the right, even if it interferes with the chips, the chips are not rotatably tilted and pushed back toward the center. On the other hand, a spiral chip conveyor 80 is provided in the front gutter 78, and is appropriately driven by a drive motor (not shown) to convey chips in the end direction. The chips that have been moved to either the left or right end in this way are the rear gutter 64 and the front gutter 78.
To a bucket at each end of the bucket, which transfers the chips to another bucket outside the splash guard via a lift-up conveyor (not shown).

〔The invention's effect〕

As is clear from the above description, according to the present invention, since the table of the machine tool is surrounded over the entire movement stroke, it is possible to completely prevent scattering of chips and cutting oil,
Since the front cover is provided with wheels and sliding doors, the sliding doors can be used during light work, and the front cover can be pulled out during other work, thus providing good access to the table and mounting and removing workpieces. , Workability such as cleaning of chips and inspection and repair is improved. Furthermore, it is possible to monitor the operation and processing status of the machine tool from the windows provided on the front cover, and collect chips and cutting oil in the front and rear gutters via the telescopic covers on the front, back, left and right of the table. Since the cleaning can be performed very efficiently, the workability of the machine tool itself is improved. Further, since the portable splash guard is not provided with a chip and a collecting portion for collecting cutting fluid, the structure is simple and the movement is easy.

[Brief description of drawings]

1 to 3 are respectively a front view, a plan view and a left side view of a portable splash guard according to the present invention, and FIG. 4 is a detailed enlarged view taken along the line IV-IV in FIG. 10 …… bed, 12 …… saddle, 14 …… table,
16 ... Column, 18 ... Spindle head, 30 ... Front cover, 32 ... Rear cover, 34 ... Stopper, 36 ...
Casters, 38, legs, 40, sliding doors, 46, right telescopic cover, 48, left telescopic cover, 50, front telescopic cover, 52, rear telescopic cover, 64, rear gutter, 78. Front gutter.

Claims (4)

[Claims] 1. A table 14 having a vertical spindle and on which a workpiece is placed is mounted and fixed on the back surface of a base of a machine tool which is movable in two horizontal directions, ie, right and left and front and rear. A rear cover 32 forming a partition surface behind the table 14.
And a bottom cover provided so as to cover the entire four circumferences of the table 14, and partition surfaces on the front and both sides of the table 14, which cooperate with the partition surfaces of the rear cover 32 to surround the bottom cover. And a front cover 30 that forms a partition surface that surrounds the left and right sides of the table 14, and the bottom cover is arranged so as to be extendable and contractible in the left and right directions. The left side telescopic cover covers the left and right guide mechanism. 48 and the right telescopic cover 46, one end is pivotally attached to the rear gutter 64 between the rear gutter 64 and the rear cover 32 extending in the left-right direction on the rear side of the table 14, and the other end is the rear cover. It is pivotally attached to 32 and is arranged so that it can be expanded and contracted in the front-back direction.
A rear telescopic cover 52 having a width dimension substantially equal to the distance between the left and right ends of the rear cover 32, and a front gutter 7 extending in the left-right direction on the front side of the table 14.
8 and the supporting base 12 of the table 14 below the left and right telescopic covers 48 and 46, one end is pivotally attached to the front gutter 78 and the other end is pivotally attached to the support base 12 Is arranged so as to be expandable and contractible in the direction, and the rear cover 32 is provided.
And a front telescopic cover 50 having a width dimension in the left-right direction which is substantially equal to the distance between the left and right ends of the front cover 30, and the front cover 30 is formed in a substantially rectangular shape when viewed from the top. The receiver 31 that extends around the front cover and the lower side of the cover to a length longer than a gap formed between the bottom cover and the front cover 3,
0 is attached to the front cover 30 so that 0 can move independently of the rear cover 32.
8, the front cover 30 is engaged with the rear cover 32 to close the table 14 in the cover space, and the front cover 30 is pulled away from the rear cover 32. A portable splash guard for a machine tool, characterized in that the table 14 can be opened. 2. The front cover 30 is attached to the rear cover 32.
The portable splash guard for a machine tool according to claim 1, further comprising a suitable number of connecting fittings 34 that are detachably connected to the. 3. The front cover 30 comprises a transparent window 44 capable of externally monitoring the operation of the machine tool, and a sliding door 40 capable of performing light work. A portable splash guard for a machine tool according to item 2. 4. The wheeled legs 38 each include a brake device which can be freely disengaged.
A portable splash guard for a machine tool according to item.