JP3058598U - Bed and multi-tasking machine - Google Patents

Abstract

(57) [Problem] To provide a bed for efficiently processing chips shaved by various tools in a multitasking machine. SOLUTION: A left side portion A in which a first mounting seat 1a for a turning head 9 of the multi-tasking machine is formed, a central portion B having a hole 1c into which chips shaved and scattered fall, and a worker side. The bed 1 is divided into a right-hand portion C where a second mounting seat 1e of the tool head 25 and a third mounting seat 1f for the magazine body 31 are formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a bed on which a turning head, a tool head, and a tool magazine are placed, and a multi-tasking machine that performs turning and various types of milling on a single machine tool. More specifically, the present invention relates to a bed capable of performing efficient processing in a region and a processing side region, and a multi-tasking machine employing a Y-axis mechanism equivalent to a machining center for milling using the bed.

[0002]

[Prior art]

 In conventional multi-task machines, a Y-axis moving part is added to a lathe turret that normally moves in the Z-axis and X-axis directions, and a milling tool is mounted on the tool mounting surface to perform turning and milling. Was to do. However, in this case, since a moving part in the Y-axis direction is added to the tool post, the rigidity of the moving mechanism in the Y-axis direction is reduced, so that it cannot withstand heavy cutting, and the Y-axis stroke becomes small, so that sufficient five-face machining is performed. Was difficult to do. Therefore, in the machining center of Japanese Utility Model Application Laid-Open No. 61-27606 shown in FIG. 10, a turning headstock 102 is mounted on a rotary indexing table 101 of a normal machining center, and is held by a three-jaw chuck 103 at the tip of the turning headstock 102. The turning work and the milling work are performed on the worked workpiece by a tool mounted on the tip of the tool spindle 104.

[0003]

[Problems to be solved by the invention]

 The machining center disclosed in Japanese Utility Model Application Laid-Open No. 61-27606 described in the prior art is not equipped with chip treatment measures since the machine body is a normal machining center, and the chips shaved by each tool are placed on a table. Or, there was a problem that it was deposited between the column and the table. The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a bed for efficiently processing chips shaved by various tools and a composite machining using this bed. Is to offer a machine.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, a bed according to claim 1 of the present invention comprises a turning head member, a left side portion forming a first mounting seat, a central portion having a hole for dropping collected chips, and The tool magazine is divided into a second mounting seat of a tool head member on the side and a right-hand portion where a third mounting seat of a tool magazine having a tool changing device in the back is formed. The above-mentioned bed has a chip drop hole in the center where the most scattered chips are received, so it can be dropped down every time chips are scattered and discharged without depositing on the machine Has become easier.

[0005] In the bed according to the second aspect, a recess for a chip accumulation is further provided on the left side portion on a side opposite to the central portion of the first mounting seat. In the above-mentioned bed, the chips splattered behind the work are collected in the recess of the chip pool outside the left side part, so that the treatment is easy.

According to a third aspect of the present invention, there is provided a multi-tasking machine comprising a base having a sliding guide surface in the horizontal X-axis direction provided on a first mounting seat on the left side portion of the bed of the first aspect, and A rotary table member provided on the sliding guide surface so as to be movable and positioned by the NC and capable of controlling the rotation of the B axis about the vertical axis by the NC; and a workpiece mounted on the rotary table member and capable of controlling the rotation of the C axis by the NC. A turning head having a main shaft having a chuck at the tip end horizontally mounted therein, a column mounted on a second mounting seat on the right side of the bed and having a sliding guide surface in the vertical Y-axis direction, and a NC on the guide surface of the column. A Y-axis saddle which is provided so as to be movable and has a sliding guide surface in the horizontal Z-axis direction; a tool head which is provided on the guide surface of the Y-axis saddle so as to be movable and positioned by NC; A tool spindle which is rotatable at a fixed position and is supported in the Z-axis direction, and a tool magazine having an automatic tool changer provided on a third mounting seat on the right side of the bed. .

In the above-mentioned multi-tasking machine, a column having a Y-axis sliding guide surface is directly mounted on a bed, so that a tool can perform Y-axis movement control equivalent to that of a machining center. Heavy cutting can be performed with a stroke.

According to a fourth aspect of the present invention, there is provided the multi-tasking machine further provided with a chip conveyor for discharging swarf falling from the drop hole in the central portion to the non-operator side. In the above-mentioned multi-tasking machine, a chip conveyor is provided below the center of the bed, so that chips falling from the drop hole in the center of the bed can be sequentially discharged outside the machine, and a large amount of chips remains in the machine. Nothing.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the basic concept of the bed of the present invention, wherein (a) is a front view, (b) is a plan view, (c) is a rear view, and (d) is a side view. A multi-tasking machine is constructed by installing a turning magazine, a tool head, and a tool magazine with a tool changer.

The bed 1 has a left side portion A having a first mounting seat 1a of a turning head member formed on an upper surface, a central portion B having a hole 1c for collecting and dropping chips generated during processing, and an upper surface on the worker side. The second mounting seat 1e of the tool head member and a right side portion C in which a third mounting seat 1f of a magazine is formed on the back upper surface.

The left side portion A of the bed 1 is provided with a recess 1h for a swarf accumulation on the side opposite to the central portion B of the first mounting seat 1a. The hole 1c for dropping swarf provided in the central portion B of the bed 1 is mostly surrounded by an inner wall 1i which is inclined downward toward the hole 1c, thereby facilitating the flow of swarf. ing. A window 1j for discharging chips is provided on the back side of the central portion B on the side opposite to the worker, and communicates with a hole 1c for dropping chips inside the bed.

FIG. 2 is an explanatory front view of the multi-tasking machine of the present invention, FIG. 3 is an explanatory plan view thereof, and FIG. 4 is an explanatory rear view thereof. A base 2 having a sliding guide surface in the horizontal X-axis direction is mounted on a first mounting seat 1a on the left side portion A of the bed 1. On the guide surface 2a of the base 2, an X-axis saddle 5 whose movement and positioning is controlled in the X-axis direction by a ball screw 4 driven by a servomotor 3 is mounted.

A rotary table on the X-axis saddle 5 is rotationally indexed around a vertical B-axis by a servo motor 6 and a worm-worm wheel mechanism (not shown), and the indexing position is determined by a gear-type coupling. 7 are provided. A bracket 8 is fixed to the upper surface of the circular table 7, and a turning head 9 having a horizontal axis is attached to the bracket 8.

The turning head 9 is capable of turning by 90 ° in the X-axis direction facing the operator side and in the Z-axis direction perpendicular to the tool spindle side, and further, by 180 ° in which the spindle chuck faces the non-operator side. . The turning head 9 has, as a built-in motor, a main shaft which is internally rotated and C-axis controlled by an integral structure with a servomotor, and is horizontally supported. A chuck 10 for gripping a workpiece is attached to the tip of the main spindle in a compact state by shortening the distance from the center of rotation of the B-axis. A hydraulic cylinder piston device 11 for automatically opening and closing the claw 10a of the chuck 10 is attached to the rear end of the turning head 9.

A column 21 is provided upright on the second mounting seat 1 e of the right side portion C of the bed 1, and a sliding guide surface 21 a is provided on the vertical surface of the column 21 on the side opposite to the worker in the vertical Y-axis direction. It is formed. The sliding guide surface 21a is provided with a Y-axis saddle 23 whose movement and positioning is controlled in the Y-axis direction by a ball screw (not shown) driven by a servomotor 22.

The Y-axis saddle 23 has a sliding guide surface 23 a in the horizontal Z-axis direction perpendicular to the Y-axis direction and the X-axis direction. The sliding guide surface 23a is provided with a tool head 25 whose movement and positioning is controlled in the Z-axis direction by a ball screw (not shown) driven by a servomotor 24.

The tool head 25 has a built-in motor as a built-in motor, and a tool spindle 26 that is internally rotated with the motor and is horizontally mounted in the Z-axis direction. The tool spindle 26 is stopped at a fixed angular position by a fixed position stop mechanism (not shown) provided in the tool head 25 and a brake device (not shown), so that the position can be firmly secured. The tool spindle 26 has a tapered hole for mounting a tool at the tip, and a clamp mechanism for firmly holding the tool mounted in the tapered hole and an air blow device for cleaning the tapered hole are provided inside.

A tool magazine main body 31 is erected on an upper mounting seat 1 f far from the operator on the upper surface of the right side portion C of the base 1. As shown in FIG. 4, a disk-shaped tool mounting body 32 is provided in the tool magazine main body 31 so as to be able to rotate and index in a vertical ZY plane. A plurality of tool pots 33 are attached to the disk-shaped tool attachment body 32 at the same pitch on the same circumference so as to be pivotable by 90 ° in two directions, the X-axis direction and the radial direction.

Each of the tool pots 33 is provided with various tools required for cutting. The various tools to be mounted on the disk-shaped tool mounting body 32 are usually mounted in a state of protruding in the x-axis direction on the side opposite to the worker. A notch 31a (FIG. 5) is formed at a predetermined position for tool change of the tool magazine main body 31, and a disk-shaped tool mounting body 32 performs rotation indexing for tool change. The tool pot 33 equipped with a predetermined tool stopped at the position is rotated by 90 ° in the radial direction by the mechanism shown in FIG. 6 and positioned in the Z-axis direction. The tool positioned in this way is parallel to the tool spindle 26.

FIG. 6 is an explanatory view showing a 90 ° turning mechanism of the tool pot 33 provided in the magazine main body 31. The tool pots 33 are pivotally supported on the tool mounting body 32 by pins 34 at the same pitch positions on the same circumference of the disk-shaped tool mounting body 32, and are rotated in the direction of the axis of rotation of the tool mounting body 32 (X axis). Direction) and each radial direction is supported so as to be able to turn 90 °.

Each of the tool pots 33 has a roller 35 protruding from an inner end thereof. A cylinder piston device 36 is attached to the indexing position for tool exchange of the magazine body 31, and a groove 38a is provided at the tip of the piston rod 37 to allow the passage of the roller 35 when the tool attachment body 32 rotates. A character-shaped piece 38 is attached.

Then, when the tool mounting body 32 performs rotation indexing and the predetermined tool pot 33 is indexed, the piston rod 37 is retracted toward the center of the magazine body 31 by the action of the cylinder piston device 36. Due to this retraction, the roller 35 existing in the groove 38a of the piece 38 is moved toward the center of the magazine body 31, and the tool pot 33 is turned by 90 ° around the pin 34 and radially indicated by a virtual line in FIG. (Z axis direction).

A tool exchange arm holder 41 (FIG. 3) is attached to a vertical side surface of the tool magazine main body 31 on the tool head 25 side. A twin arm 43 for tool exchange, which pivots in a vertical XY plane by a cam (not shown) rotated by a motor 42 attached to the rear end of the holder 41 and moves in the Z-axis direction by a cam (not shown). Is provided.

A chip conveyor 50 is provided directly below the chip drop hole 1c in the central portion B of the bed 1 and its discharge end projects rearward from a window 1j on the rear surface of the bed 1 so that the chip is It is put into a bucket (not shown) on the floor from a discharge port at the rear end of the conveyor.

Next, the operation until the tool in the tool magazine body 31 is positioned at the predetermined tool change position for the tool change will be described with reference to the flowchart of FIG.

In step S 1, it is checked whether or not the selected tool to be used for cutting is present in the magazine body 31. If NO, an alarm is issued and the operation is stopped. In the case of YES, the process proceeds to the next step S2.

In step S2, it is checked whether or not the tool pot 33 faces the X-axis direction. In the case of NO, the process proceeds to the next step S3. In the case of YES, the process moves to step S4.

In step S3, a command is issued to activate the cylinder piston device of the tool pot 90 ° turning mechanism shown in FIG. 6 to orient the tool pot 33 in the X-axis direction, and the process returns to step S2. In step S4, it is checked whether or not the disk-shaped tool mounting body 32 is rotated clockwise in order to make the required tool approach. If NO, the process proceeds to step S5. If YES, proceed to step S6.

In step S5, the disk-shaped tool mounting main body 32 is rotated counterclockwise to position the required tool in a short distance to the indexing position, and then proceeds to step S7. In step S6, the disk-shaped tool mounting main body 32 is rotated clockwise to position the required tool in a short distance to the indexing position, and then proceeds to step S7.

In step S7, it is checked whether or not the disk-shaped tool mounting body 32 has positioned the required tool at the indexing position. In the case of NO, the disk-shaped tool mounting body 32 is further rotated, and the check is made again in step S7. If YES, proceed to step S8. In step S8, the rotation of the disk-shaped tool attachment main body 32 is stopped, and the process proceeds to step S9.

It is checked whether or not the tool pot 33 positioned at the indexing position in step S9 is at a tool changing position in the Z-axis direction. If NO, the process proceeds to step S10. If YES, this tool selecting operation is completed. In step S10, a command is issued, and the tool pot 33 positioned at the indexing position by the tool pot 90 ° turning mechanism shown in FIG. 6 is directed in the Z-axis direction, and the process returns to step S9.

Next, an operation procedure when the tool positioned at the tool change position in the tool magazine device and the used tool mounted on the tool spindle 26 of the tool head 25 are exchanged by the tool exchange arm 43 will be described. The operation will be described with reference to the flowchart of FIG.

In step S21, it is checked whether the tool change arm 43 is at the tool change standby position in the Z-axis direction. If NO, an alarm is issued and the operation is stopped. In the case of YES, the process proceeds to step S22.

In step S22, the tool spindle 26 of the tool head 25 is stopped at a fixed position, and the process proceeds to step S23. In step S23, it is checked whether or not the tool spindle 26 has stopped at a fixed position. In the case of NO, the tool spindle 26 is further caused to perform a fixed position stop operation, and the check is performed again in step S24. In the case of YES, the process proceeds to step S24.

In step S 24, the turning motor 42 of the tool changing arm 43 is rotated to turn the tool changing arm 43 to a 90 ° rotation position shown in FIG. 9C. At this time, the tool exchange arm 43 holds the tool in the tool spindle and the tool in the magazine by the grippers 43a at both ends. In step S25, the tool mounted on the tool spindle 26 is set to the unclamped state.

In step S 26, the tool exchange arm 43 is advanced in the Z-axis direction to a position indicated by a virtual line in FIG. 9D, and the tool is pulled out from the tool spindle 26 and the tool pot 33 of the magazine. In step S27, the tool change arm 43 is turned by 180 °, and the positions of the tools gripped by the both-end grippers 43a are exchanged to the state shown in FIG. 9E.

In step S 28, an air blow is blown from the inside of the tool spindle 26 toward the tool mounting tapered hole. In step S29, the tool change arm 43 is retracted in the Z-axis direction to the position indicated by the imaginary line in FIG. 9 (f), and the tool held by the grippers 43a at both ends of the tool change arm 43 is moved to the tool spindle 26 and the magazine. It is inserted into the tool pot 33 in the main body 31.

In step S30, a command is issued to the clamping device in the tool spindle 26, and the inserted tool is clamped and held in the tool spindle 26 in step S29. In step S31, the air blow blown from the inside of the tool spindle 26 is stopped.

In step S32, the tool change arm 43 is rotated to a position indicated by a virtual line in FIG.

Next, the operation of the workpiece machining in the multi-task machine of the present invention will be described.

When the tip chuck 10 of the turning head 9 grips the work, it is generally performed by a dedicated loader or robot (not shown). In this case, the turning head 9 can be positioned at an arbitrary position in the X-axis direction on the left side portion 1b of the bed 1 by a form of a loader or a robot. Further, by rotating the B axis, the chuck 10 can be pivotally positioned at an arbitrary angle from the worker side to the opposite worker side.

The work is supplied / discharged to / from the chuck 10 positioned at a desired position and at a desired angle in this manner. When a tool is to be mounted on the tip of the tool spindle 26, a desired tool is taken out of the tool magazine 31 by the tool changing arm 43 and is freely attached.

In FIG. 3, when the turning head 9 is turned to the tool spindle 26 side to cut the work gripped by the chuck 10, a cutting tool is attached to the tool spindle 26 and the surface is opposed to the end face of the workpiece. In addition to cutting and drilling, hole drilling can be performed, and cam grooves can be formed on the end face by attaching an end mill to the tool spindle 26 and controlling the C axis of the work spindle and the X axis of the turning head 9. . Further, by attaching an end mill or a milling tool to the tool spindle, controlling the Y axis, indexing the spindle by a predetermined angle by controlling the C axis, and controlling the turning head 9 in the X axis, a plurality of surfaces can be machined.

[0044] Further, not only it is possible to perform turning of the outer peripheral attaching byte T ₁ to engineering tool spindle 26 in the case where no state toward the X-axis direction by the B-axis turning the turning head 9, optionally Can be drilled on the side of the work. In the case of this turning, the tool spindle 26 is stopped at a fixed position and the brake is further applied to prevent the tool spindle 26 from being rotated by the cutting force.

Further, it is also possible to perform oblique hole drilling on the work by positioning the work at a position inclined with respect to the tool spindle 26 by B-axis control. In addition, the turning head 9 is continuously B-axis controlled to perform spherical machining on the workpiece surface, or cam machining is performed by combining the B-axis control and the X-axis control and additionally combining the Z-axis control of the tool spindle 26. It is also possible. In addition, various machining can be performed by combining the NC control of each axis.

The chips generated during the machining as described above usually fall downward from the cutting edge portion of the tool, and fall much in the Z-axis movement range, which is the movable region of the tool. Of course, it does not always fall just below the tool cutting edge, but scatters in all directions.

In the present invention, the right side portion C of the bed 1, which is the mounting portion of the column 21 supporting the tool head 25 and the mounting portion of the tool magazine main body 31, is a portion where scattering of chips is least, and The left side portion A of the bed 1, which is a moving portion in the X-axis direction, is a portion where chips are scattered to some extent.

The middle part B of the bed 1, which is an intermediate part between these two parts, is a place where the most chips are scattered. The chips scattered in the area of the left side portion A of the bed 1 are accumulated in the chip accumulation 1h. Chips scattered in the area of the central portion B of the bed 1 are collected by the inclined inner wall surface 1i and fall downward from the chip drop hole 1c of the bed 1. Since the amount of chips accumulated in the chip accumulation 1h is relatively small, there is no need to discharge the chips outside the machine every time they are scattered. Will be

Further, since the amount of chips falling downward from the chip drop hole 1c is large, it is necessary to discharge the chips outside the machine every time the chips fall. Therefore, the chip conveyor 50 is arranged below the chip drop hole 1c, and chips are discharged from the window 1j to the rear side of the machine. Since the amount of chips scattered in the area of the right side portion C of the bed 1 is very small, the operator appropriately cleans the chips.

[0050]

[Effect of the invention]

 Since the bed of the present invention is configured as described above, the following effects can be obtained.

Since the bed of claim 1 is provided with a chip drop hole at the central portion where the generated chips are received most, the chips can be collected rationally and dropped down every time the chips are scattered. It does not deposit a large amount of chips on the top of the machine.

In the bed according to the second aspect of the present invention, since the recess for the chip accumulation is provided on the outside of the left side portion, the chip can be received when the turning head is oriented in the X-axis direction, and the cutting by manual operation is performed. Can process powder.

In the multi-tasking machine according to the third aspect, since the turning head is placed on the table and can be turned on the B axis, the machining range can be widened. Also, since a column having a Y-axis sliding guide surface is directly attached to the bed, a large stroke Y-axis movement amount can be secured, and heavy cutting can be performed as Y-axis processing.

In the multi-tasking machine according to the fourth aspect of the present invention, the chip conveyor is disposed below the central portion of the bed, so that chips falling from the drop hole at the center of the bed can be sequentially discharged to the outside of the machine, and cut into the machine. Large amounts of powder do not remain.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a bed body of the present invention, wherein (a) is a front view, (b) is a plan view, (c) is a rear view, and (d) is a side view.

FIG. 2 is an explanatory front view showing the configuration of the multifunction machine of the present invention.

FIG. 3 is an explanatory plan view showing a configuration of the multi-tasking machine of the present invention.

FIG. 4 is an explanatory rear view showing the configuration of the multi-tasking machine of the present invention.

FIG. 5 is a side view from the spindle head side showing the configuration of the multi-tasking machine of the present invention.

FIG. 6 is an explanatory view showing a 90 ° turning mechanism of the tool pot.

FIG. 7 is a flowchart showing an operation state of the tool magazine device.

FIG. 8 is a flowchart showing an operation sequence of tool change.

9 (a) is a layout view of a pot of a tool magazine, FIG. 9 (b) is a schematic plan view of an automatic tool changer, and FIG. 9 (c) is a position where the change arm pivots to a tool holding position. (D) is an explanatory view showing a position where the exchange arm advances and the tool is pulled out, (e) is an explanatory view showing a state where the exchange arm rotates 180 ° to exchange a tool,
(F) is an explanatory view showing a state in which the exchange arm is retracted and a tool is inserted, and (g) is an explanatory view showing a state in which the exchange arm returns to the standby position.

FIG. 10 is a schematic explanatory view of a conventional machining center.

[Explanation of symbols]

 1 Bed 1a 1st mounting seat 1c Drop hole 1e 2nd mounting seat 1f 3rd mounting seat A Left part B Central part C Right part 1h Concavity of chip accumulation 2 Base 2a X axis sliding guide surface 7 Rotary table 9 Turning Head 10 Chuck 21 Column 21a Y-axis sliding guide surface 23 Y-axis saddle 23a Z-axis sliding guide surface 25 Tool head 26 Tool spindle 31 Magazine body 43 Tool exchange arm 50 Chip conveyor

Claims (4)

[Utility model registration claims] 1. A left side portion of a turning head member forming a first mounting seat, a central portion having a hole for dropping collected chips,
A bed which is divided into a second mounting seat of a tool head member on an operator side and a right side portion where a third mounting seat of a tool magazine having a tool changing device in a back is formed. 2. The bed according to claim 1, further comprising: a recess in a left side portion of the first mounting seat, opposite to the central portion, for a chip accumulation. 3. The first portion of the left side portion of the bed of claim 1,
A base provided on the mounting seat and having a sliding guide surface in the horizontal X-axis direction, provided on the sliding guide surface of the base so as to be movable and positionable by NC, and by a NC around the vertical axis by B
A rotary table member capable of controlling axis rotation, a turning head having a horizontally mounted main spindle having a workpiece chuck mounted on the rotary table member and capable of controlling the C axis rotation by NC, and (2) A column attached to the mounting seat and having a sliding guide surface in the vertical Y-axis direction, a Y-axis saddle provided on the guide surface of the column so as to be movable and positioned by NC, and having a sliding guide surface in the horizontal Z-axis direction. A tool head provided on the guide surface of the Y-axis saddle so as to be movable and positioned by NC, a tool spindle capable of being stopped at a fixed rotational position by the tool head, and supported in the Z-axis direction; And a tool magazine having an automatic tool changer provided on the mounting seat. 4. The multi-tasking machine according to claim 3, further comprising a chip conveyor for discharging chips falling from the drop hole in the central portion to a side opposite to the worker.