JP7022237B1 - Machine tool chip remover and chip removal method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chip removing device for a machine tool capable of efficiently removing chips adhering to a complicated place such as a hole cut laterally without causing a decrease in processing efficiency. SOLUTION: This is a chip removing device for a machine tool that removes chips from a work 10 machined by relative movement with a tool 7 in a work processing space 210 partitioned by a cover member 200, and faces each other with a spindle 6 interposed therebetween. Coolant including a discharge nozzle 31 that is arranged at or near at least one side surface of the pair of side surfaces 201 and 202 and that removes chips from the work 10 by discharging coolant from the one side surface toward the other side surface. A discharge mechanism 30 is provided. [Selection diagram] Fig. 3

Description

The present invention relates to a chip removing device and a chip removing method for a machine tool that removes chips from a workpiece processed by relative movement with a tool in a work processing space partitioned by a cover member.

The machine tool is equipped with a coolant nozzle that sprays coolant toward the machined portion of the work in order to remove chips generated during machining of the work from the machined portion. Such a coolant nozzle is provided on the tool shaft, or is provided on the cover member that covers the machined area of the work, that is, on the ceiling portion of the splash guard.

In Patent Document 1, a coolant pipe connected to a coolant liquid supply source and piped to the upper part of a splash guard so as to be able to inject the coolant liquid over a wide range of a processing area, and a pipe branched from the upper part of the conduit of the coolant pipe are piped. A shower coolant device is disclosed in which the root portion is mounted upward or sideways, and the tip portion has a plurality of coolant nozzles opened downward.

Japanese Unexamined Patent Publication No. 2007-30142

For example, in a horizontal machining center, when cutting a workpiece fixed on a table using a tool attached to a spindle in a horizontal posture, or when machining workpieces attached to four sides of an ikele fixed to a table in order. At that time, it is necessary to remove the chips adhering to the work.

Chips adhering to the outer surface of the work can be removed by discharging coolant from, for example, a shower coolant device installed on the ceiling. However, chips adhering to complicated places such as holes cut sideways cannot be removed by the shower coolant device.

In addition, when the coolant is discharged from the coolant nozzle attached to the spindle in order to remove the chips adhering to the recesses such as holes cut sideways, the work may be processed until the chips are removed. It cannot be done, and the processing efficiency is reduced. Such a problem is not limited to the horizontal machining center, but also occurs in a multi-tasking machine.

In view of the above-mentioned problems, an object of the present invention is a chip removing device and chips of a machine tool capable of efficiently removing chips adhering to complicated places such as holes cut sideways without causing a decrease in processing efficiency. The point is to provide a removal method.

In order to achieve this object, the machine tool chip removing device according to the present invention is a machine tool chip removing device that removes chips from a work machined by relative movement with a tool in a work processing space partitioned by a cover member. A discharge that is arranged on or near at least one side surface of a pair of side surfaces facing each other across the spindle, and discharges coolant from the one side surface toward the other side surface to remove chips from the work. The coolant discharge mechanism includes a coolant discharge mechanism including a nozzle, and the coolant discharge mechanism has a liquid supply pipe extending in the height direction and having an opening for mounting the discharge nozzle, and the liquid supply pipe on one side surface thereof. A moving mechanism for moving the liquid supply pipe in the horizontal direction is provided, and a plurality of openings are formed at different heights along the pipe axis direction extending in the height direction of the liquid supply pipe, and the discharge nozzle is provided. It is characterized in that the discharge height of the coolant discharged from the is adjustable .

Further, the characteristic configuration of the machine tool chip removing method according to the present invention is a machine tool chip removing method for removing chips from a work machined by relative movement with a tool in a work processing space partitioned by a cover member. An opening for mounting the discharge nozzle is formed, and a liquid supply pipe extending in the height direction and a moving mechanism for moving the liquid supply pipe horizontally along the side surface of the cover member are provided. A plurality of the openings are formed at different heights along the pipe axis direction extending in the height direction of the liquid supply pipe, and the discharge height of the coolant discharged from the discharge nozzle can be adjusted. The coolant discharge mechanism is arranged at least one side surface or its vicinity of a pair of side surfaces facing each other across the main shaft, and the coolant is discharged from the discharge nozzle from the one side surface to the other side surface. It is characterized by removing chips from the work .

According to the present invention, there is provided a chip removing device and a chip removing method for a machine tool that can efficiently remove chips adhering to complicated places such as holes cut sideways without causing a decrease in processing efficiency. Will be able to.

It is explanatory drawing of the side view of the chip removing device of a machine tool, and is the explanatory view which showed the coolant discharge mechanism installed on the back side. It is explanatory drawing of the front view of the chip removing device of a machine tool. It is explanatory drawing of the plan view of the chip removing device of a machine tool.

[Basic Embodiment of Chip Removal Device and Removal Method for Machine Tools]
As described above, the machine tool chip removing device according to the present invention is a machine tool chip removing device that removes chips from a work machined by relative movement with a tool in a work processing space partitioned by a cover member. A discharge nozzle that is arranged on or near at least one side surface of a pair of side surfaces facing each other across a spindle and discharges coolant from the one side surface toward the other side surface to remove chips from the work. It is equipped with a coolant discharge mechanism including.

A hole cut laterally, for example, by a coolant ejected laterally from an ejection nozzle located at or near at least one of the pair of sides facing each other across the spindle toward the other side. Chips adhering to intricate areas are effectively removed. Since it is possible to continue machining the work with the tool during that time, the machining efficiency does not decrease.

The coolant discharge mechanism includes a liquid supply pipe extending in the height direction and having an opening for mounting the discharge nozzle, and a moving mechanism for moving the liquid supply pipe horizontally along one side surface thereof. , Are preferably provided.

With this configuration, as the above-mentioned coolant discharge mechanism provided with the nozzle, a liquid supply pipe having an opening for mounting the discharge nozzle is extended in the height direction, and the liquid supply pipe is moved in the moving mechanism. By moving horizontally along one side surface, the position of the discharge nozzle mounted on the opening can be moved horizontally.

The moving direction of the liquid supply pipe is preferably a direction along the moving direction of the horizontal component of the machining point with respect to the work, and the liquid feeding pipe is moved in the direction along the moving direction of the horizontal component of the machining point with respect to the work. Therefore, it is possible to correspond to the position of the processed work.

Further, it is preferable that a plurality of the openings are formed along the pipe axis direction of the liquid supply pipe so that the discharge height of the coolant discharged from the discharge nozzle can be adjusted, and the work position is set to the machining position of the work. Correspondingly, the position of the discharge nozzle can be easily adjusted.

It is preferable that a detachable closing member is attached to the opening other than the opening to which the discharge nozzle is attached among the openings, and by attaching the closing member, unnecessary consumption of coolant is avoided. In addition, it is possible to appropriately remove chips by avoiding a decrease in the discharge pressure of the coolant discharged from the discharge nozzle.

The opening is preferably formed in a range corresponding to the vertical movement range of the machining point with respect to the work, and the discharge nozzle can be mounted at an appropriate position corresponding to the moving range of the machining point.

The moving mechanism is provided with a guide rail attached to the ceiling of the cover member and a ball screw mechanism for moving the liquid supply pipe along the guide rail.

The liquid supply pipe is movably supported by a guide rail attached to the ceiling of the cover member, and the liquid supply pipe can be accurately moved along the pair of side surfaces by the ball screw mechanism.

The method for removing chips from a machine tool according to the present invention is a method for removing chips from a machine tool that is machined by relative movement with a tool in a work processing space partitioned by a cover member, and sandwiches a spindle. Chips are removed from the work by discharging the coolant from at least one side surface of the pair of side surfaces facing each other toward the other side surface.

[Detailed Embodiment of Chip Removal Device for Machine Tools]
Hereinafter, detailed embodiments of the chip removing device and the chip removing method of the machine tool will be described with reference to the drawings.

1 to 3 show a machine tool 100 installed in a processing space 210 that is partitioned by a cover member 200 and processes a work 10.

The machine tool 100 is vertically installed on a bed 1, a table 2 that moves in the Z-axis direction along a guide surface on the bed 1, a pallet 3 that rotates around the B axis in a vertical posture on the table 2, and a bed 1. It is a horizontal machining center including a column 4 that moves in the X-axis direction along the guide surface on the bed 1 and a spindle head 5 that moves in the Y-axis direction along the guide surface of the column 4. As shown by the alternate long and short dash line in the figure, the machining center is surrounded by a cover member 200, and the cover member 200 is provided with a door (not shown) that can be opened and closed.

When the servomotor MZ is driven, the table 2 moves along the linear drive axis in the Z-axis direction on the bed 1, and when the servomotor MB is driven, the pallet 3 rotates around the B axis on the table 2. When the servomotor MX is driven, the column 4 moves along the linear drive axis in the X-axis direction on the bed 1, and when the servomotor MY is driven, the spindle head 5 is in the Y-axis direction on the column 4. It moves along the linear drive axis.

The tool 7 is held by the spindle 6 provided on the spindle head 5, and when the servomotor MS1 is driven, the tool 7 rotates around the horizontal axis. The work 10 which is a work piece is held by a jig such as an ikele provided on the pallet 3, and when the servomotor MB is driven, the work 10 held by a jig such as the ikeel 3A is along the B axis together with the pallet 3. Rotate around the vertical axis.

By driving each of the above-mentioned servomotors MX, MY, MZ, MB, and MS1 based on the preset NC program via the servo control unit, the work 10 and the tool 7 move relative to each other, and the work 10 is desired. Machined into the shape of. In this example, each work 10 is attached to each side surface of the rectangular parallelepiped shape Ikel 3A, and when the processing of one work is completed, the pallet 3 rotates 90 degrees around the B axis, and a new work 10 is processed.

A coolant tank 8 for collecting coolant, which is a fluid supplied for cooling and cleaning, is installed below the table 2, and chips generated during machining are collected in the coolant tank 8 together with the coolant. There is. A chip conveyor 9 is arranged at the bottom of the coolant tank 8, and the chips 11 collected in the coolant tank 8 are carried out of the machine by the chip conveyor 9 and collected in the collection container 12.

The coolant collected in the coolant tank 8 is circulated and supplied to the first and second coolant discharge mechanisms 30 and 40 via the liquid feed pipes 30T and 40T after the foreign matter such as chips is removed through the cyclone filter and the like. (See Fig. 3).

The first coolant discharge mechanism 30 is a pair of left and right side walls (side surfaces) arranged so as to sandwich the spindle 6 from a direction orthogonal to the extending direction of the axis of the spindle 6 among the side surfaces constituting the cover member 200. ) It is installed in the vicinity of 201 and 202, respectively.

The first coolant discharge mechanism 30 includes a ball screw 33 and a servomotor 34 that rotationally drives the ball screw 33. The ball screw 33 is rotatably supported by a pair of supports 32 attached to the ceiling of the cover member 200 via bearings.

A moving body 35 that moves forward or backward along the axis of the ball screw 33 with the forward or reverse rotation of the ball screw 33 is screwed into the ball screw 33, and the moving body 35 is screwed. The liquid supply pipe 36 in a vertical posture is supported. Although not shown, a guide rail that holds the moving posture of the moving body 35 that reciprocates along the ball screw 33 is installed so as to support the moving body 35. The ball screw 33, the servomotor 34, the moving body 35, and the guide rail form a moving mechanism for horizontally moving the liquid supply pipe 36 along one of the side surfaces 201 and 202. Here, the servo motor 34 is also positioned and controlled based on the NC program like other servo motors.

The liquid supply pipe 36 is formed with three-stage openings 36A, 36B, 36C in the direction orthogonal to the side surfaces 201 and 202, that is, vertically toward the work 10, and any one of the openings (upper and lower in the present embodiment). The discharge nozzle 31 is attached to the opening indicated by the reference numeral 36B in the intermediate portion, and the other openings (reference numerals 36A and 36C in the present embodiment) are closed by the closing member 37. The discharge nozzle 31 and the plugging member 37 are attached so as to be screwed into the threaded portions formed in the openings 36A, 36B, 36C.

A plurality of openings 36A, 36B, 36C are provided to cover the processing area in the vertical direction in which the work 10 is machined by the tool 7. That is, a plurality of machining points are provided in a range corresponding to the vertical movement range of the machining point. The number of openings 36A, 36B, 36C is not limited to the upper and lower three stages, and may be two upper and lower stages, or four or more upper and lower stages. That is, a plurality of openings 36A, ... Are formed along the pipe axis direction of the liquid supply pipe 36, and the discharge height of the coolant discharged from the discharge nozzle 31 can be adjusted.

On the front surface of the spindle 6, in order to remove chips adhering to the machined part when the work 10 is machined by the tool 7, and to suppress the temperature rise due to the cutting heat generated in the machined part, the work portion is directed toward the machined part. A discharge nozzle 41 serving as a second coolant discharge mechanism 40 for injecting coolant is provided.

As shown in FIG. 1, when the work 10 is fixed to each side surface of the Ikel 3A having a rectangular plan view, the work 10 to be machined by the tool 7 is subjected to the ejection nozzle 41 during machining. Coolant is discharged.

However, although the coolant discharged from the discharge nozzle 41 is discharged near the surface of the work 10, it is difficult to remove chips adhering to a portion having a complicated shape such as a hole formed in the horizontal direction by the tool 7. For that purpose, the above-mentioned first coolant discharge mechanism 30 is provided.

When the machining of one work 10 fixed to the ikele 3A is completed, the pallet 3 rotates 90 degrees around the B axis, and the machining of the next work 10 facing the tool 7 starts. At this time, the work 10 for which processing has been completed first has a positional relationship facing the discharge nozzle 31 of the first coolant discharge mechanism 30, so that the coolant discharged from the discharge nozzle 31 is laterally formed on the work 10. The amount of movement by the movement mechanism is adjusted so that the injection can be made toward the hole or the like. That is, the moving direction of the liquid supply pipe 36 is set to be along the moving direction of the horizontal component of the processing point with respect to the work 10.

Further, when the work 10 on the table 2 moves in the Z-axis direction based on the machining program, the servomotor 34 is controlled so that the discharge nozzle 31 moves in the Z-axis direction in synchronization with the movement of the work 10. It is also possible to do.

Hereinafter, another embodiment of the present invention will be described.
In the above-described embodiment, an example in which the first coolant discharge mechanism 30 is arranged in the vicinity of the pair of left and right side walls (side surfaces) 201 and 202 so as to sandwich the spindle 6 has been described, but the pair of left and right side walls has been described. (Side surface) The configuration may be provided only on the side wall of any one of 201 and 202.

In the above-described embodiment, the example in which the ball screw 33 is attached to the pair of supports 32 attached to the ceiling of the cover member 200 has been described, but the supports 32 are attached to the side walls 201 and 202 and the side walls 201 and 202 are attached. A ball screw 33 may be installed along the line. In this case, the coolant discharge mechanism 30 is arranged on the side surfaces 201 and 202 facing each other with the main shaft 6 interposed therebetween.

In the above-described embodiment, the example in which the work 10 is attached to the Iker 3A has been described, but the work 10 may be directly attached to the pallet 3.

In the above-described embodiment, an example in which one discharge nozzle 31 is attached to any one of the plurality of openings 36A, ... Formed in the liquid supply pipe 36 has been described, but all the openings 36A, ... A discharge nozzle 31 may be attached to each of the plurality of openings 36A, ... Selected in advance.

In the above-described embodiment, the horizontal machining center has been described as an example, but the machine tool to which the present invention is applied is not limited to the horizontal machining center, but is applied to a work fixed to a spindle arranged in a horizontal posture. It can also be applied to lathes and compound lathes that cut workpieces by approaching a tool attached to a tool post from a direction perpendicular to the axis.

That is, the chip removing device 300 is a device that removes chips from the work 10 processed by relative movement with the tool 7 in the work processing space 210 partitioned by the cover member 200, and is a pair of facing each other across the spindle 6. A coolant discharge mechanism including a discharge nozzle 30N, which is arranged at or near at least one side surface 201 of the side surfaces 201 and 202 and removes chips from the work 10 by discharging coolant from one side surface 201 toward the other side surface 202. It is equipped with 30.

The method for removing chips from a machine tool is a method for removing chips from a machine tool that removes chips from a work 10 machined by relative movement with a tool 7 in a work processing space 210 partitioned by a cover member 200. It is configured to remove chips from the work 10 by discharging coolant from at least one side surface 201 of the pair of side surfaces 201 and 202 facing each other with the spindle 6 interposed therebetween toward the other side surface 202.

Although the embodiments and embodiments of the present invention have been described above, the disclosed contents may be changed in the details of the configuration, and changes in the combinations and orders of the elements in the embodiments and embodiments have been requested. It can be realized without departing from the scope and idea of the present invention.

As described above, according to the present invention, it is possible to realize a chip removing device for a machine tool that can efficiently remove chips adhering to complicated places such as holes cut sideways without causing a decrease in processing efficiency. ..

1: Bed 2: Table 3: Pallet 3A: Ikel 4: Column 5: Spindle head 6: Spindle 7: Tool 8: Coolant tank 9: Tip conveyor 10: Work piece (work)
11: Chip 30: First coolant discharge mechanism 30T: Liquid supply pipe 31: Discharge nozzle 32: Support 33: Ball screw 34: Servo motor 35: Moving body 36: Liquid supply pipe 36A, 36B, 36C: Opening 37 : Closing member 40: Second coolant discharge mechanism 40T: Liquid supply pipe 41: Discharge nozzle 100: Machine tool 200: Cover members 201, 202: Side wall (side surface)
210: Processing space

Claims (6)

It is a chip removal device for machine tools that removes chips from the workpiece processed by relative movement with the tool in the work processing space partitioned by the cover member.
Coolant that is arranged on or near at least one side surface of a pair of side surfaces facing each other across the spindle and includes a discharge nozzle that removes chips from the work by discharging coolant from the one side surface toward the other side surface. Equipped with a discharge mechanism
The coolant discharge mechanism includes a liquid supply pipe extending in the height direction and having an opening for mounting the discharge nozzle, and a moving mechanism for moving the liquid supply pipe horizontally along one side surface thereof. , Equipped with
A plurality of the openings are formed at different heights along the pipe axis direction extending in the height direction of the liquid supply pipe, and the discharge height of the coolant discharged from the discharge nozzle can be adjusted. Machine tool chip remover. The chip removing device for a machine tool according to claim 1 , wherein the moving direction of the liquid supply pipe is a direction along the moving direction of the horizontal component of the machining point with respect to the work. The chip removing device for a machine tool according to claim 1 or 2 , wherein a removable closing member is attached to an opening other than the opening to which the discharge nozzle is attached. The chip removing device for a machine tool according to any one of claims 1 to 3 , wherein the opening is formed in a range corresponding to a range of vertical movement of a machining point with respect to the work. The machine tool according to any one of claims 1 to 4 , wherein the moving mechanism includes a guide rail attached to the ceiling of the cover member and a ball screw mechanism for moving the liquid supply pipe along the guide rail. Machine chip remover. It is a chip removal method for machine tools that removes chips from the workpiece processed by relative movement with the tool in the work processing space partitioned by the cover member.
The supply is provided with an opening for mounting a discharge nozzle, a liquid supply pipe extending in the height direction, and a moving mechanism for moving the liquid supply pipe in the horizontal direction along the side surface of the cover member. A plurality of the openings are formed at different heights along the pipe axis direction extending in the height direction of the liquid pipe, and the discharge height of the coolant discharged from the discharge nozzle can be adjusted. The coolant discharge mechanism is arranged at least one side surface of a pair of side surfaces facing each other with the main shaft interposed therebetween or in the vicinity thereof, and the coolant is discharged from the discharge nozzle from the one side surface to the other side surface. A method for removing chips from a machine tool that removes chips from the work.

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