JP2018089741A - Bulkhead structure of machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulkhead structure which blocks an opening forming a movement passage of a tilting movement member machine which penetrates a partition wall which partitions a work region and a mechanism region of a machine tool, which comprises laminated plural vanes, in which a telescopic motion of the vane is not destabilized, and which is not damaged by falling cutting oil and chips.SOLUTION: A protective cover for closing an opening 8 comprises: a horizontal movement plate 21 in linkage with horizontal movement of a tilting movement member 3; a vertical movement member 12 for guiding the horizontal movement member; plural vanes 13 which are so laminated as to be slidable in a vertical direction between the vertical movement member and a stationery partition wall 11; and a vertical guide groove 18 which is fixed to the partition wall 11 and guides both end parts of the plural vanes 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure of a partition for preventing chips and cutting oil generated in a work processing region of a machine tool from entering a mechanical region of the machine, and in particular, a member that moves along a vertical surface of the partition. It is related with the partition structure characterized by the structure of the protective cover which closes the opening provided in the said partition along this movement path.

  When machining a workpiece with a machine tool, cutting oil is supplied to the machining portion, and chips are scattered from the machining portion. To prevent the machine from damaging the machine by splattering the cutting oil and chips that adhere to the gears, feed screws, guide grooves, etc., which are placed in the mechanical area of the machine. A partition wall, a protective cover, an open / close door, and the like that divide the mechanism area in which the apparatus is arranged are provided.

  For example, in the turret lathe, as shown in FIG. 4, when the spindle chuck 5 and the turret head 4 are arranged on the partition wall 11 side having a vertical plane orthogonal to the spindle axis, the spindle chuck 5 and the turret head indexing device 3 is provided through the partition wall 11. When machining the workpiece, the turret head 4, and thus the indexing device 3 for indexing and rotating the turret head, moves in a direction approaching and separating from the spindle axis a, so that the partition wall 11 is allowed to move. An opening 8 is provided, and a protective cover is provided for closing the opening.

  When the indexing device 3 moves to the main axis line a side, the opening generated on the opposite main axis line side can be closed by a single sliding plate 34 that slides in close contact with the periphery thereof. However, if the opening on the main shaft axis side of the indexing device is closed by a single sliding plate, the main shaft chuck 5 and the sliding plate interfere when the indexing device 3 moves to the main shaft axis a side. It must be closed with a possible cover (expandable cover). As the expansion / contraction structure, an expansion / contraction cover 30 having a structure in which a large number of slats 33 are slidably contacted in a short stroke in the moving direction of the indexing device 3 is used.

  In the case of the expansion / contraction cover having such a structure, when the lathe is slant type, that is, a lathe having a bed 6 with the upper surface 7 inclined, the indexing device 3 moves obliquely in parallel with the bed upper surface 7. The extension cover 30 must also be provided to extend and contract in an oblique direction. The expansion / contraction cover 30 composed of a plurality of laminated slats 33 extends in the moving direction thereof, for example, to maintain a close contact state between the slats that are in sliding contact with each other. For example, guide grooves 38 having a U-shaped cross section (38a, 38b). It is necessary to guide with the guide material 37 provided with. The guide groove 38 is desirably provided so as to guide both ends of the laminated slats 33.

  The wing plate 33 of the expansion / contraction cover having the above structure moves in conjunction with the moving member, that is, the indexing device 3 in the above example, so that when the indexing device 3 moves backward (away from the main axis), A gap corresponding to the thickness of the slats retracted toward the distal end side of the guide groove 38, that is, the spindle chuck 5 side is generated. For the tool post arranged above the spindle axis a, even if an expansion cover with such a guide groove is provided, the probability of cutting oil and chips entering the gap is small, and if it enters However, no problem arises because it is pushed out by gravity or a slat that moves downward on the spindle axis side.

  However, when the above-described telescopic cover 30 is provided for the tool post disposed below the spindle axis a, the cutting oil and chips that have entered the gaps in the lower guide groove 38b are stacked on the blade plate 33. Each time the indexing device 3 moves, it is pushed by the slats that move with it and repeatedly moves in the guide groove 38b, damaging the slats and the guide material. . That is, the chips that have entered the guide groove 38b are not discharged from the guide groove 38b, but remain indefinitely and move together with the slats 33 in the guide groove 38b, causing a problem of damaging the expandable cover 30.

  In order to avoid the above problem, it has been attempted to guide the wing plate 33 only by the upper guide groove 38a without providing the lower guide member. However, in the case of such a structure, the force for bringing the blades 33 into close contact with each other on the side where the guide groove is not provided does not act, so that the movement operation of the blades becomes unstable or the gap between the blades There was a problem that cutting oil or fine chips entered, causing the sliding action of the slats 33 to become unstable or the slats 33 to be damaged.

  The present invention has been made to solve the above-described problems, and has an opening serving as a moving passage of an inclined moving member that moves obliquely through a partition wall that partitions a machining area and a mechanism area of a machine tool. A cutting oil that has a stretchable cover for shielding and has a plurality of slats laminated with the stretchable cover, and that does not destabilize the slats and that falls. It is an object to provide a partition structure that is not damaged by chips or chips.

  In the present invention, a sliding cover (horizontal moving plate) 21 that slides in a horizontal direction and a vertical direction covers a protective cover 1 that closes an opening 8 that is provided to prevent the movement of the inclined moving member 3 that penetrates the partition wall 11. The above problem is solved by providing a partition wall structure formed by the elastic cover 10 that expands and contracts.

  That is, the partition wall structure of the present invention is a partition wall 11 that divides a processing region for machining a workpiece and a mechanism region in which a spindle driving device, a tool driving device, and the like are arranged, and moves obliquely through the partition wall. For example, with respect to the structure of the partition wall provided with a stretchable cover for closing the opening 8 provided in the partition wall to allow the tilting movement member 3 such as the indexing device of the tool head 4 to move obliquely, the opening 8 A horizontal moving plate 21 interlocking with the horizontal movement accompanying the oblique movement of the inclined moving member 3, a vertical moving member 12 for guiding the horizontal moving plate, and a vertical movement between the vertical moving member and the fixed partition 11. It is a partition structure provided with a plurality of wing plates 13 that are slidably movable in a direction and a vertical guide groove 18 that is fixed to the partition walls 11 and guides both ends of the plurality of wing plates 13. .

  If a guide edge 14 extending vertically downward is provided at one or both ends of each of the plurality of blades 13, and the guide edge 14 is guided by the guide groove 18, the swinging movement of the blade 13 is achieved. Can be prevented, and the slat 13 can be moved more smoothly. Further, both end portions of the plurality of blades 13 are bent portions 15 and 16 bent at right angles, and the stacked blade plates 13 are also stacked at the bent portions 15 and 16 so as to be in sliding contact with each other and guide grooves. By adopting the structure guided at 18, the rigidity of the expansion / contraction cover 10 can be increased and the moving operation can be made more stable.

  According to the present invention, the diagonal movement of the member 3 penetrating the partition wall 11 is broken down into vertical movement and horizontal movement, and the wing plate 13 of the extendable cover 10 is moved in the vertical direction to guide both ends of the wing plate 13. It can guide by the groove | channel 18, can implement | achieve the stable movement operation | movement of the wing board 13, and can prevent the damage to the wing board 13 and the guide material 17 by the penetration | invasion of the cutting oil and chips into the guide groove 18. FIG.

  That is, according to the present invention, since the operation direction of the expansion / contraction cover is vertical, the penetration and accumulation of chips into the guide groove are prevented, the operation of the expansion / contraction cover 10 is stabilized, and the blade 13 and the guide member 17 are damaged. There is an effect that can prevent.

  Further, the vertical stroke of the expansion / contraction cover 10 with respect to the oblique movement stroke of the inclined moving member 3 is shortened, and the number of the wing plates 13 can be reduced, and the operation rigidity of the expansion / contraction cover 10 can be increased.

The figure which looked at the example from the direction of the main axis of the machining area Perspective view of stretched cover Perspective view of the retracted state of the telescopic cover Figure similar to Fig. 1 of the conventional structure

  The present invention will be further described below with reference to the drawings showing embodiments. FIG. 1 is a view of the partition wall 11 through which the main spindle chuck 5 and the indexing device 3 pass, as viewed from the machining area side in the direction of the main shaft axis a, and the turret head 4 attached to the indexing device 3 is an imaginary line. It is shown.

  A horizontal moving plate 21 that slides in contact with the periphery of the opening 9 of the vertical moving member 12 is fixed to the tip of the casing of the indexing device 3 (end on the processing region side). The horizontal length of the opening 9 is equal to the horizontal length of the partition opening 8. The horizontal moving plate 21 is guided by a horizontal guide 22 provided on the vertical moving member 12 so as to be freely movable in the horizontal direction.

  The vertical moving member 12 is freely movable in the vertical direction with a stroke equal to the vertical length of the opening 8 of the partition wall, and a telescopic cover 10 that extends and contracts in the vertical direction is provided on the main axis axis a side of the vertical moving member 12. Yes. A sliding plate 24 made of a single plate that is in sliding contact with the lower peripheral surface of the opening 8 is fixed to the side opposite to the main axis of the vertical moving member 12.

  2 and 3 are perspective views showing the detailed structure of the telescopic cover 10. FIG. 3 shows a state in which the indexing device has moved to the spindle chuck side, and FIG. 2 shows a state in which the indexing device has moved to the counter spindle chuck side. 2 and 3 show the state in which the front guide material for guiding the slat 13 is omitted.

  The extendable cover 10 includes a plurality of slats 13 that are slidably stacked on each other. One end of each slat 13 is provided with a guide edge 14 extending in the moving direction of the slat 13. The side edge of the guide edge 14 and the other end of the slat are bent portions 15 and 16 bent at a right angle. The plurality of slats 13 have the same dimension in the moving direction, the slats having the shortest guide edges 14 are fixed to the vertical moving member 12, and the slats 13 a having the longest guide edges 14 are fixed to the partition 11. It is fixed. The length of the guide edge 14 of the slat 13 between the shortest slat 13b and the longest slat 13a of the guide edge 14 is sequentially increased with an equal dimensional difference.

  The plurality of slats 13 are stacked so that the slats with short guide edges 14 are sequentially fitted inside the slats having longer guide edges. The heights of the bent portions 15 and 16 at both ends of the slats are such that the top sides 15a and 16a have the same height when stacked, and the bent portions are fixed to the partition wall 11 in a U-shaped cross section or reversed. It is guided by a U-shaped guide groove 18 formed by an L-shaped guide member 17 and is freely movable in the vertical direction. The front edge of the other slats excluding the shortest slat 13a of the guide edge 14 and the rear end of the guide edge 14 are projections for restricting the stroke of the slats accommodated therein (in the figure, each slat It is not shown because it is on the back side of.).

  Next, with reference to FIG. 1, the operation of the telescopic cover when the indexing device 3 advances and retracts toward the spindle axis a side will be described. When the indexing device 3 moves in the direction approaching the spindle axis a, the horizontal moving plate 21 moves to the left in FIG. 1 along with the movement, and the telescopic cover 10 is retracted. On the other hand, when the indexing device 3 moves away from the main axis a, the horizontal moving plate 21 moves to the right in FIG. 1, and the telescopic cover 10 extends in the vertical direction. That is, the function of the protective cover 1 of the present invention is realized by combining the horizontal movement h of the horizontal movement plate 21 by the movement s in the oblique direction of the indexing device 3 and the expansion and contraction operation of the vertical cover v in the vertical direction v. The

  Accordingly, the guide groove 18 that guides the wing plate 13 of the extendable cover 10 is in the vertical direction, and the cutting oil and chips falling into the guide groove fall out of the guide groove while the vertical moving member 12 moves up and down. And will not damage the slats. Each of the stacked slats is guided by the guide grooves 18 at both ends, so that the individual slats do not swing or float, and the slats become unstable in movement, The problem that chips enter and accumulate between the slats is also eliminated.

  That is, according to the present invention, a plurality of sheets that extend in the vertical direction are guided by guide grooves at both ends of the opening of the partition wall formed in the passage of the inclined moving member that penetrates the partition wall 11 that defines the machining area of the machine tool. It is characterized in that it is closed by a telescopic cover 10 having a wing plate 13 and a horizontal moving plate 21 that freely moves in the horizontal direction, and the cutting that has entered the guide groove 38 that guides the wing plate 13 of the elastic cover 10. The expansion cover 10 is prevented from being damaged by oil or chips, and the guiding of the wing plate 13 of the expansion cover can be performed stably and reliably.

DESCRIPTION OF SYMBOLS 1 Protective cover 3 Indexing device 4 Tool head 8 Opening 10 Telescopic cover 11 Bulkhead 12 Vertical moving member 13 Wing board 14 Guide edge 15, 16 Bending part 18 Guide groove 21 Horizontal moving board

Claims (3)

A partition wall in a vertical direction that divides a processing region for processing a workpiece and a mechanism region in which a machine is disposed, and a member that moves obliquely through the partition wall, and the partition wall allows the movement of the member. In the partition wall structure closed with a cover provided with a plurality of slats laminated slidably moving the opening provided in
The cover is moved in the vertical direction between the horizontal moving plate that is linked to the horizontal movement accompanying the oblique movement of the member, the vertical moving member that guides the horizontal moving plate, and the vertical moving member and the fixed partition wall. A partition structure for a machine tool, comprising: the plurality of blades slidably stacked on each other; and vertical guide grooves fixed to the partition walls to guide both end portions of the plurality of blades. .   The partition structure of a machine tool according to claim 1, wherein each of the plurality of slats includes a guide edge extending vertically downward at one or both ends thereof.   Each of the plurality of blades includes a bent portion formed by bending both ends thereof at right angles, and the bent portions of the plurality of blades are slidably slidably contacted in the guide groove. The partition structure of a machine tool according to claim 1 or 2.

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