ES2973473T3 - Machine tool - Google Patents

Abstract

A machine tool is provided which comprises comb-shaped cutting tool holders and has a simple configuration capable of performing a wide range of machining types in a combined manner. Two comb-shaped cutting tool holders (27, 56) arranged opposite to each other across an axis of a main spindle (7) supported to be movable in an axial direction, are each supported to be movable in an comb shape so that it can move in a Z direction that is the same direction as the axial direction of the main spindle (7). A comb-shaped cutting tool holder (27) is integrally provided with a rotating tool holder (34) that supports the tools (31) rotatably about an axis Y along the Y direction. (Automatic translation with Google Translate , without legal value)

Description

DESCRIPTION

Machine tool

TECHNICAL FIELD

The present description refers to a machine tool.

BACKGROUND OF THE TECHNIQUE

Conventionally known in the art is a machine tool that includes a main spindle and two tool posts. The main spindle is supported to move in an axial direction, and the tool holders are arranged opposite each other with the axis of the main spindle between them. Each of the two tool posts is supported to move in the Y-axis and X-axis directions perpendicular to the direction of the main spindle axis. The machine tool is configured so that the tools are arranged parallel to each other in the direction of the Y axis. One of the two tool posts is arranged to move in a direction of the Z axis that is the same direction as the direction of the axis of the main spindle (see Patent Bibliography 1 (page 5, Fig. 1), for example).

Furthermore, a machine tool is known in the art that includes a turning tool base that is supported to rotate about the Y axis (see Patent Literature 2 (page 6, Fig. 4), for example).

WO 2016/021212 A1 describes a machine tool comprising: a main spindle movably supported in an axial direction and two gang tool posts arranged opposite each other with a main spindle axis between them, where each of the two gang tool posts is movably supported in the X and Y directions that are perpendicular to the axial direction of the main spindle, and each of the two gang tool posts is provided with a gang of tools that are arranged in the Y direction parallel to each other, where one of the two gang tool posts is integrally provided with a turning tool base that rotatably supports the tool gang about an axis B extending along the direction Y, wherein the turning tool base is arranged on one side of the gang tool post fixed in the Z direction.

REFERENCE LIST

Patent bibliography

Patent Bibliography 1: JP2001-129701A

Patent Bibliography 2: JP4997240B

SUMMARY

technical problem

An object of the present invention is to provide a machine tool that includes a tool post having a tooth comb shape or a group tool post where the tools are arranged in a Y axis direction parallel to each other and can perform a wide variety of machining in multiple ways with Problem Solution

A machine tool according to the present invention for solving the above problems includes the features defined in claim 1.

The machine tool according to the present invention is characterized in that the turning tool base is provided on one side of one of the gang tool posts, and the end surface tool base is provided on one side of the other of the posts. of gang tool.

The machine tool according to the present invention is characterized by the fact that the turning tool base is arranged on one side of the gang tool post which is fixed in the Z direction.

The machine tool according to the present invention may comprise a second main spindle arranged opposite the main spindle, and a second main spindle tool base arranged opposite the turning tool base with a main spindle axis located between them, the second main spindle tool base joined with tools for machining a material held by the second main spindle.

The main spindle is optionally arranged so that the main spindle axis extends along a left-right direction, and the multi-tool posts are respectively arranged on a front side and a rear side with the main spindle axis located between them so that the multi-tool post movable in the Z direction is arranged on a rear side opposite to a work area for an operator located on a front side of a machine.

Advantageous effects

According to the present invention configured as above, it is possible to provide a machine tool including a tool post having a tooth comb shape or a group tool post where the tools are arranged in a Y axis direction parallel to each other and They can perform a wide variety of machining in multiple ways with a simple setup.

BRIEF DESCRIPTION OF THE DRAWINGS

[Fig.1] Fig. 1 is an approximate perspective view illustrating an automatic lathe as an embodiment of a machine tool of the present description.

[Fig. 2] Fig. 2 is a plan view of the automatic lathe illustrated in Fig. 1.

[Fig. 3] Fig. 3 is a front view of the automatic lathe illustrated in Fig. 1.

[Fig. 4] Fig. 4 is a cross-sectional view along a line A-A of Fig. 2.

[Fig. 5] Fig. 5 is a perspective view illustrating a turning tool base.

DESCRIPTION OF THE EMBODIMENTS

Figures 1 to 4 show an automatic lathe, which is an embodiment of a machine tool according to the present invention. The automatic lathe includes Z1 slide rails 2 in a bed 1. The Z1 slide rails 2 extend in a Z direction corresponding to a left and right direction in a plan view. The sliding rails Z1 2 are fixed to a guide block Z1 3 which is fixed to the bed 1. Two sliding rails Z1 2 are arranged in an X direction to be parallel to each other. The X direction corresponds to a front and rear direction in the plan view and is perpendicular to the Z direction.

A saddle 4 is slidably attached to the Z1 slide rails 2. A first headstock 6 is integrally attached to the saddle 4. A first main spindle 7 is rotatably supported by the first headstock 6. The first main spindle 7 is arranged so that its axis extends in the Z direction. The motor AZ1 5 is fixed to the guide block Z1 3.

The motor Z1 5 rotatably drives a ball screw of a ball screw mechanism which engages the first head 6 between the sliding rails Z1. Drive by the Z1 motor 5 allows the first main spindle 7 to slide in the Z direction through the first headstock 6. The automatic lathe is right-handed. That is, a position where the first main spindle 7 can be seen on the right side is the front of the automatic lathe, and the working area for an operator is located at the front of the automatic lathe.

A support post 8 is arranged on the left side of the Z1 sliding rails 2 and fixed to the bed 1. A guide bushing unit 9 is fixed to the support post 8. The guide bushing unit 9 includes a guide bushing 10 and a guide bushing holder 11 that receives the guide bushing 10. The guide bushing unit 9 is arranged so that the axis of the guide bushing 10 coincides with the axis of the first main spindle 7. The guide bushing motor 11 is attached to the guide bushing support post 8. The guide bushing 10 is located on the left side of the first main spindle 7.

The X1 slide rails 12 are fixed to the support post 8 and extend in the X direction. Two X1 slide rails 12 are arranged in the Y direction to be parallel to each other. The Y direction is perpendicular to the X direction and the Z direction in a vertical direction. A seat 13 is slidably attached to the X1 slide rails 12. A mobile base X1 14 is integrally attached to the seat 13. Note that the X direction, Y direction and Z direction are perpendicular to each other.

A seat 17 is slidably attached to the Y1 slide rails 16 extending in the Y direction and is integrally fixed to the X1 movable base 14. The Y1 slide rails 16 are integrally fixed to a first slide base 18. A The first tool holder 21 is integrally fixed to the first sliding base 18 and the tools 19 for machining are attached to the first tool holder 21. The first tool holder 21 allows each of the tools 19 to be arranged in the Y direction.

A motor X1 22 is attached to the support post 8. The motor 24 is fixed to the upper surface of the first sliding base 18 through a motor fixing plate 23.

The Y1 motor 24 rotatably drives through a belt 26 a ball screw of a ball screw mechanism which engages the first sliding base 18 between the Y1 sliding rails 16. The X1 motor 22 allows the first base slider 18 slides in the X direction and motor Y1 24 allows the first slider base 18 to slide in the Y direction.

Attaching the first tool holder 21 to the first sliding base 18 forms a first tool post having a tooth comb shape or a first gang tool post 27. On the first gang tool post 27, the tools 19 They are arranged in the Y direction. The first gang tool post 27 can be slid in the X and Y directions by the motor X122 and the motor Y124. The first multiple tool holder 27 is arranged in front of the axis of the first main spindle 7 and slides in an area forward of the axis of the first main spindle 7.

As shown in Fig. 5, a rotating tool base 28 is integrally attached to the first sliding base 18 in a position above the first tool holder 21. A first rotating tool platform 29 is attached to the rotating tool base 28. to rotate about the Y axis along the Y direction. The first rotating tool platform 29 has a substantially inverted L shape and extends in the Y direction. The first rotating tool platform 29 is configured to arrange a plurality of rotating tools 31 in the Y direction. The rotating tools 31 such as drills, milling cutters and the like can be attached to the first rotating tool platform 29 to extend in left and right directions.

A rotating tool motor S3 32 is mounted on the upper surface of the rotating tool base 28. The rotating tool motor S3 32 rotates the rotating tools 31 attached to the first rotating tool platform 29. The first rotating tool platform 29 rotatably drives the rotary tools 31 attached to the first rotary tool platform 29 by the rotary tool motor S332 through a rotary drive mechanism provided therein.

A motor B1 33 is arranged on the right side of the rotary tool base 28. The first rotary tool platform 29 is driven and rotated by the motor B133 through a rotary drive mechanism provided between the rotary tool base 28. and the first rotating tool platform 29. The first rotating tool platform 29 is rotatably supported by the rotating tool base 28 so that a rotating tool base 34 is formed.

The turning tool base 34 is integrally attached to the first multi-tool post 27 by the fact that the rotating tool base 28 is attached to the first sliding base 18. The rotating tools 31 attached to the base of the turning tool 34 are integrally rotated around the Y axis (the Y direction) by the first rotating tool platform 29, which is the so-called B axis turning.

A movable base Z236 is arranged behind the first main spindle 7. Sliding rails Z237 extending in the Z direction are arranged on the bottom surface of the movable base Z236. Two Z237 sliding rails are arranged in the X direction parallel to each other. A seat 38 is slidably attached to the slide rails Z237. The seat 38 is fixed to the bed 1 behind the first main spindle 7.

The X2 sliding rails 39 are fixed to the Z2 moving base 36 and extend in the X direction. Two X239 sliding rails are arranged in the Y direction parallel to each other. A seat 41 is slidably attached to the slide rails It is integrally attached to the X242 mobile base.

The Y2 Sliding rails S43 are integrally attached to a second sliding base 46. A second tool holder 48 is integrally fixed to the second sliding base 46. The tools 47 for machining are attached to the second tool holder 48. The second tool holder 48 allows the tools 47 are arranged in the Y direction. A motor Z249 is attached to bed 1.

The motor Z249 rotatably drives a ball screw of a ball screw mechanism which engages the moving base Z2 36 between the sliding rails Z2 37. The moving base Z2 36 can be slid in the Z direction by the motor Z249. . A motor X251 is attached to the mobile base Z2 36. The motor

A motor Y253 is fixed to the upper surface of the second sliding base 46 through a motor fixing plate 52. The motor Y253 rotates through a belt 54 a ball screw from a ball screw mechanism which engages the second sliding base 46 between the sliding rail Y2S43. The second sliding base 46 can slide in the X direction by motor X251 and in the Y direction by motor Y253.

The second tool holder 48 is fixed to the second sliding base 46 to form a second multi-tool post 56. On the second gang tool post 56, the tools 47 are arranged in the Y direction. The second multi-tool holder 56 can slide in the X direction, the Y direction and the Z direction by the X2 motor 51, the Y2 motor 53 and the Z2 motor 49, respectively. The second multiple tool holder 56 is arranged on the rear side behind the axis of the first main spindle 7 and slides in an area behind the axis of the first main spindle 7. The first gang tool holder 27 and the second gang tool holder 56 are arranged opposite each other. each other in the front and rear directions with the axis (axis line) of the first main spindle 7 between them.

An end surface tool base 57 is integrally attached to the second slide base 46 at a position above the second tool holder 48. Drilling tools 58, such as drills and the like, are fixedly attached to the end surface tool base 57. the end surface tool 57 and arranged in the X and Y directions. The drilling tools 58 can be attached to the end surface tool base 57 to extend in the right and left directions.

A second rotating tool platform 59 is integrally fixed to the second sliding base 46 in a position above the end surface tool base 57. The second rotating tool platform 59 extends in the Y direction, and allows a plurality of rotating tools 61, such as drills and milling cutters, are arranged in the Y direction. A rotating tool motor S462 is attached to the second rotating tool platform 59. A rotating tool motor S4 62 rotatably drives the tools rotating tools 61 attached to the second rotating tool platform 59.

The second rotary tool platform 59 rotatably drives the rotary tools 61 attached to the second rotary tool platform 59 by the rotary tool motor S462 through a rotary drive mechanism provided therein. A tool attachment portion 60 is located on the top of the second rotating tool platform 59 and is attached to rotate around the X direction. The tool attachment portion 60 can be positioned and fixed at a rotation angle. default by manually adjusting the turning angle from the front side.

The sliding rails X363 extending in the X direction are fixed to the bed 1 on the left side of the support post 8. Two sliding rails A sliding body 64 is slidably mounted on the guide rail X3 63. A movable base

Two Z367 slide rails are arranged in the X direction to be parallel to each other. A sliding body 68 is slidably mounted on the Z3 guide rail 67. A second headstock 69 is integrally attached to the saddle 68. The second headstock 69 rotatably supports a second main spindle 71. The second main spindle 71 is arranged as follows: such that the spindle axis extends along the Z direction.

A ball screw mechanism is fixed to the platform 1 and a ball screw 72 of the ball screw mechanism is coupled to the mobile base X366 between the sliding rails X363. A motor and the like rotatably drives the ball screw 72 so that the movable base X3 66 slides in the X direction. A motor Z373 is fixed to the movable base X366.

The Z3 motor 73 rotatably drives a ball screw from a ball screw mechanism that engages the second head 69 between the Z3 sliding rails 67. The Z3 motor 73 drives the second head 69 to slide in the Z direction. The motor Z373 and a motor for driving the ball screw 72 drive the second main screw 71 in the X direction and the Z direction.

An opposing tool post 70 is integrally attached to the second headstock 69 and joined with the tool 75 for machining in the first main spindle 7. The tool 75 can be attached to the opposite tool post 70 in the Z direction. The opposite tool holder 70 is slides in the X direction and Z direction together with the second main spindle 71.

A second support post 74 is provided behind the slide rails Y3 sliders 76 are arranged in the X direction parallel to each other. A sliding body 77 is slidably mounted on the Y3 guide rail 76. A Y3 movable base 78 is integrally attached to the seat 77.

A second main spindle tool base 81 is integrally fixed to the moving base Y378. The second main spindle tool base 81 is attached with tools 79 for machining on the second main spindle 71. A motor Y382 is fixed to the second support post 74. The motor Y382 rotatably rotates a ball screw of a ball screw mechanism that attaches to the Y3 78 mobile base between the Y376 slide rails.

The motor Y382 drives the movable base Y378 to slide in the Y direction. The second main spindle tool base 81 in this embodiment of the invention is configured to arrange the tools 79 in the Y direction. The second main spindle tool base 81 is integrally linked with an S5 rotary tool motor 83 to rotatably drive the tools 79.

Rotating tools such as drills, milling cutters and the like may be attached to the second main spindle tool base 81 as tools 79. The second main spindle tool base 81 rotatably drives the rotating tools attached to the second main spindle tool base 81. main spindle tool 81 by the S5 rotary tool motor 83 through a rotary drive mechanism provided therein. A tool attachment portion 80 is arranged on the top of the second main spindle tool base 81 to rotate around the X direction. The tool attachment portion 80 can be positioned and fixed at a predetermined rotation angle. by manually adjusting the turning angle from the front side.

An elongated rod material can be inserted into the first main spindle 7 as material from the back of the first main spindle 7. The rod material inserted into the first main spindle 7 extends from the guide bushing 10 and is held or grabbed by the first main spindle 7. The rod material supported by the first main spindle 7 rotates by rotatably driving the first main spindle 7.

By moving the first main spindle 7 with respect to the rotating rod material in the Z direction and moving the first multi-tool post 27 in the X and Y directions, the tools 19 attached to the first tool holder 21 are selected and then the tools selected 19 perform machining on a portion of the rod material that extends from the guide bushing 10.

By fixing or rotating the rod material, rotating the turning tool base 34, moving the first main spindle 7 in the Z direction, and moving the first multi-tool post 27 in the X and Y directions, The predetermined rotating tools 31 attached to the turning tool base 34 are selected, and then the selected rotating tools 31 perform the machining of the rod material (i.e., the tools perform the machining of the B axis).

By moving the second quadrant tool post 56 relative to the rotating rod material in the X direction, Y direction and Z direction, the tools attached to the second tool holder 48, the end surface tool base 57 and /or the second rotating tool platform 59, and then the selected tools can perform machining of a portion of the rod material extending from the guide bushing 10. For example, by attaching the rotating tools 61 to the tool joining portion 60 of the second rotating tool platform 59 in a direction that crosses a central axis of rotation through a fixture and the like, machining can be performed by the attached rotating tools 61 rotating at a predetermined angle.

Machining by each tool provided on the second group tool post 56 can be performed independently of the machining of each tool provided on the first group tool post 27 behind the rod materials opposite each other with the axis of the first main spindle 7 between the rod materials with respect to machining by each tool provided in the first group tool post 27.

For example, since the second auxiliary tool holder 56 is movable in the Z direction, by causing the second auxiliary tool holder 56 to follow or pursue the movement of the first main spindle 7 in the Z direction according to the machining by each tool provided in the first auxiliary tool holder 27, for example, machining by each tool provided in the first auxiliary tool holder 27 and machining by each tool provided in the second auxiliary tool holder 56 can be performed simultaneously.

By sliding the opposite tool holder 70 in the by the rotating tools 75 attached to the opposite tool holder 70 can be carried out simultaneously with the machining by each tool provided in the first group tool holder 27 and the machining by each tool provided in the second group tool holder 56 by making the opposite tool holder 70 follow or Pursue the movement of the first main spindle 7.

After finishing machining for a product on the rod material held by the first main spindle 7, the second headstock 69 moves in the X direction so that the axis of the second main spindle 71 coincides with the axis of the first main spindle 7 and consequently, a cut part of the rod material can be provided to the second main spindle 71 as material. By moving the second main spindle 71 in the X and Y directions, and moving the second main spindle tool base 81 in the Y direction to select the tools 79 attached to the second main spindle tool base 81, the tools Selected predetermined positions 79 can perform the machining of the material retained by the second main spindle 71.

At this time, by attaching the tools 79 to the tool joint portion 80 of the second main spindle tool base 81 in a direction that crosses the central axis of rotation through a joint and the like, for example, machining can be performed by the attached tools 79 rotating at a predetermined angle.

By fixing or rotating the second main spindle 71, moving the second main spindle 71 in the X and Z directions, moving the first multi-tool post 27 in the X and Y directions, and rotating the turning tool base 34 to select the predetermined rotating tools 31 attached to the turning tool base 34, the selected rotating tools 31 can perform so-called B-axis machining to the material retained by the second main spindle 71.

By moving the second main spindle 71 in the X and Z directions, and moving the second multi-tool holder 56 in the , the selected tool can perform machining on the material retained by the second main spindle 71.

Machining on the first main spindle 7 and machining on the second main spindle 71 can be carried out independently by the first gang tool post 27 moving in the X and Y directions, and the second gang tool post 56 which moves in the X, Y and Z directions independent of the first gang tool post 27.

Furthermore, since the turning tool base 34 and the end surface tool base 57 are separately arranged on the first gang tool post 27 and the second gang tool post 56 that move independently in the directions X E Y, and the second crew tool 56 is mobile in the Z direction, causing the second gang tool pole 56 to continue or pursue the movement of the second main spindle 71 in the direction z according to the machining of the machining of axis B performed by the rotating tools 31, which are attached to the turning tool base 34, in relation to the material retained by the second main spindle 71, the material can also be machined by each of the tools provided on the second post of gang tool 56.

Claims (1)

A machine tool that includes: a main spindle (7) movably supported in an axial direction, and two gang tool posts (27, 56) arranged opposite each other with a main spindle axis (7) between them, where each of the two gang tool posts (27, 56) is movably supported in the X and Y directions that are perpendicular to the axial direction of the main spindle (7), and each of the two tool posts gang (27, 56) is provided with a gang of tools (19, 47) that are arranged in the Y direction parallel to each other, where the wherein either of the two gang tool posts is integrally provided with a turning tool base (34) that rotatably supports the tool gang about an axis B extending along the Y direction, where the Turning tool base (34) is provided on one side of one (27) of the gang tool posts, and an end surface tool base (57) is provided on one side of the other (56) of the gang tool posts, where the turning tool base (34) is arranged on one side of the gang tool post (27) fixed in the Z direction. The machine tool according to claim 1, further comprising: a second main spindle (71) arranged opposite the main spindle (7), and a second main spindle tool base (81) arranged opposite the turning tool base (34) with a main spindle axis (7) located between them, the second main spindle tool base (81) attached with tools (79) to machine a material held by the second main spindle (71). The machine tool (100) according to any of claims 1 to 2, wherein where the main spindle (7) is arranged so that the axis of the main spindle (7) extends along a left-right direction, and where the two collective tool holder posts (27, 56) are respectively arranged on a front side and a rear side with the axis of the main spindle (7) between them, so that the collective tool holder post (56) movable in the Z direction is arranged on a rear side opposite a work area for an operator on a front side of a machine.