Tool magazine for machine tool
阅读说明:本技术 机床的工具库 (Tool magazine for machine tool ) 是由 周泰焕 于 2018-12-28 设计创作,主要内容包括:本发明涉及一种机床的工具库,其中,包括:基座部,设置于主轴头移动的空间的一部分;支撑部,对所述基座部垂直设置;旋转轴部,可旋转地设置于所述支撑部;第一工具容纳部,可旋转地设置于所述旋转轴部,以所述旋转轴部的旋转中心为准放射状容纳多个工具;以及第二工具容纳部,朝所述第一工具容纳部的垂直上部相隔开,并可旋转地设置于所述旋转轴部,以所述旋转轴部的旋转中心为准放射状容纳多个工具,所述机床的工具库被设置为所述第二工具容纳部的工具容纳方向相对于所述第一工具容纳部的工具容纳方向正交,通过主轴头朝水平方向和垂直方向移动的同时容易更换第一工具容纳部的内径工具和第二工具容纳部的外径工具,从而,可以最小化非加工时间,并可以提高机床的生产性。(The invention relates to a tool magazine of a machine tool, comprising: a base part provided in a part of a space where the spindle head moves; a support part vertically provided to the base part; a rotation shaft portion rotatably provided to the support portion; a first tool accommodating portion rotatably provided in the rotation shaft portion and accommodating a plurality of tools radially with respect to a rotation center of the rotation shaft portion; and a second tool housing portion which is spaced apart from the first tool housing portion in a vertical upper direction and is rotatably provided in the rotary shaft portion, and which houses a plurality of tools radially with respect to a rotation center of the rotary shaft portion, wherein the tool magazine of the machine tool is configured such that a tool housing direction of the second tool housing portion is orthogonal to a tool housing direction of the first tool housing portion, and an inner diameter tool of the first tool housing portion and an outer diameter tool of the second tool housing portion are easily replaced while moving in a horizontal direction and a vertical direction by the spindle head, whereby a non-machining time can be minimized, and productivity of the machine tool can be improved.)
1. A tool magazine for a machine tool, comprising:
a base part provided in a part of a space where the spindle head moves;
a support part vertically provided to the base part;
a rotation shaft portion rotatably provided to the support portion;
a first tool accommodating portion rotatably provided in the rotation shaft portion and accommodating a plurality of tools radially with respect to a rotation center of the rotation shaft portion; and
a second tool accommodating portion spaced apart from a vertically upper portion of the first tool accommodating portion, rotatably provided on the rotation shaft portion, and accommodating a plurality of tools radially about a rotation center of the rotation shaft portion,
the tool magazine of the machine tool is set so that the tool accommodating direction of the second tool accommodating portion is orthogonal to the tool accommodating direction of the first tool accommodating portion.
2. The tool magazine of machine tools according to claim 1,
the first tool receiving portion includes:
a first body portion rotatably provided on the rotation shaft portion; and
and a plurality of first gripper units provided radially at a predetermined angle with respect to a rotation center of the rotation shaft unit, and gripped by a pressing tool.
3. The tool magazine of machine tools according to claim 2,
the second tool receiving portion includes:
a second body portion rotatably provided on the rotation shaft portion so as to be spaced apart from a vertically upper portion of the first body portion; and
and a plurality of second gripper units provided radially at a predetermined angle on the second body unit with respect to the rotation center of the rotation shaft unit, and gripped by a pressing tool.
4. The tool magazine of machine tools according to claim 3,
is formed such that a diameter of the first body portion is larger than a diameter of the second body portion.
5. The tool magazine of machine tools according to claim 3,
the first gripper section is disposed on the first body section, and the second gripper section is disposed on the second body section, so that a center line of each of the first gripper sections and a center line of each of the second gripper sections are orthogonal to each other with respect to the rotation center.
6. The tool magazine of machine tools according to claim 3,
the first gripper sections are arranged on the first body section, and the second gripper sections are arranged on the second body section such that an angle between centerlines of each of the first gripper sections is the same as an angle between centerlines of each of the second gripper sections.
7. The tool magazine of machine tools according to claim 3,
the first clamp part is arranged on the first main body part, and the second clamp part is arranged on the second main body part, so that the angle between the central line of the first clamp part and the central line of the adjacent second clamp part is the same.
8. The tool magazine of machine tools according to claim 3,
an inner diameter tool for machining the inner diameter of a workpiece is provided to the tool provided to the first holder part,
an outer diameter tool for machining the outer diameter of the workpiece is provided to the tool provided to the second clamp portion.
9. The tool magazine of machine tools according to claim 3,
the tool provided in the first gripper section is replaced while the spindle head is moved in the vertical direction,
the tool provided in the second gripper section is replaced when the spindle head is moved in the horizontal direction.
10. The tool magazine of machine tools according to claim 1,
further comprising a third tool accommodating portion which is spaced toward a vertically upper portion of the second tool accommodating portion and is rotatably provided on the rotation shaft portion to radially accommodate a plurality of tools with a rotation center of the rotation shaft portion as a reference,
the tool magazine of the machine tool is set such that the tool accommodating direction of the third tool accommodating portion is parallel to the tool accommodating direction of the second tool accommodating portion.
Technical Field
The present invention relates to a tool magazine for a machine tool, and more particularly, to a tool magazine for a machine tool in which a tool storage portion of a multi-stage tool magazine is formed in a vertical turning center, and an inner diameter tool and an outer diameter tool can be easily replaced when a spindle head is moved in a horizontal direction and a vertical direction.
Background
In general, a machine tool is a machine used for machining a metal/nonmetal workpiece into a desired shape and size by various cutting methods or non-cutting methods using an appropriate tool.
A variety of machine tools such as a turning center, a vertical/horizontal machining center, a portal machining center, a switch machine, an electric discharge machine, a horizontal NC drilling machine, a CNC lathe, a compound machine are widely used in various industrial fields according to the purposes of corresponding operations.
A machining center of a machine tool refers to a multifunction Automatic Tool Changer (ATC) that performs various machining operations in machining modes such as turning, drilling, tapping, and milling, and a turning center equipped with a tool magazine. In a complex machining machine, when loading or exchanging tools necessary for machining, a worker manually mounts the tools on a tool magazine.
In general, many machine tools currently used include a console to which Numerical Control (NC) or cnc (computerized numerical control) technology is applied. Such consoles have a variety of function switches or buttons and monitors.
Further, the machine tool includes: the transfer table is used for placing workpieces, namely materials, and transferring the workpieces to be processed; a pallet for preparing a pre-machining workpiece; a spindle rotating in conjunction with a tool or a workpiece; a tailstock for supporting a workpiece during machining; shock mounts, and the like.
Generally, a machine tool includes a transfer unit that transfers a workpiece along a transfer shaft, such as a transfer table, a tool holder, a spindle, a tailstock, and a vibration damping device, to perform various kinds of machining.
In general, a machine tool uses a plurality of tools and uses a tool magazine or a turret in the form of a tool storage location for storing and storing the plurality of tools in order to perform various machining operations.
In order to perform various machining operations, a machine tool uses a plurality of tools and uses a tool magazine in the form of a tool storage location for storing and storing the plurality of tools.
In general, a machine tool is provided with an Automatic Pallet Changer (APC) to minimize non-machining time. An automatic pallet exchange device (APC) automatically exchanges pallets between a workpiece processing field and a workpiece setting field. The pallet can be loaded with a workpiece.
In general, in order to improve productivity of a machine tool, the machine tool includes an Automatic Tool Changer (ATC) that extracts or newly accommodates a specific tool from a tool magazine by a command from a numerical control unit.
In general, machine tools, in particular tool magazines used in machining centers and turning centers, can be broadly divided into two types. One is a Drum (Drum type) tool library and a Chain (Chain type) tool library.
In addition, conventionally used Automatic Tool Changers (ATCs) are classified into an armtype (armtype) and an armless type (armless type) according to the type of a tool to be gripped.
In general, an Automatic Tool Changer (ATC) is a system for exchanging a plurality of tools provided on a tool plate of a tool magazine only by moving a column and a spindle without using another exchange arm (change arm), and is mainly used for a vertical machining center (turning center) or a vertical turning center.
The vertical machining center or the vertical turning center machines a workpiece with a tool mounted on a spindle.
As shown in fig. 1 to 3, when an existing vertical turning center machines an inner diameter or an outer diameter by turning, it is necessary to frequently replace a tool due to wear of the tool.
However, as shown in fig. 3, the tool magazine of the conventional machine tool has a problem that when the inner diameter tool holder 5 to which the
Further, since the tool magazine of the conventional machine tool includes only one type of tool having directionality (vertical direction in the case of an inner diameter tool and horizontal direction in the case of an outer diameter tool), and cannot accommodate various types of tools, there is a problem that the tool magazine is increased in size and eventually the machine tool cannot be reduced in size.
Further, when the vertical turning center is moved in the horizontal direction or the vertical direction, since the tool magazine of the conventional machine tool includes only one tool (inner diameter tool or outer diameter tool) in one direction, there is a problem in that the tool replacement time for performing the corresponding process increases, the productivity is lowered, and the reliability of the machine tool is lowered.
Disclosure of Invention
Technical problem
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a tool magazine of a machine tool in which a tool accommodating direction of a second tool accommodating portion intersects a tool accommodating direction of a first tool accommodating portion, and when a spindle head is moved in a horizontal direction and a vertical direction, an inner diameter tool and an outer diameter tool are easily replaced, and a tool mounted on the tool magazine is enlarged, so that a non-machining time can be minimized, productivity of the machine tool can be increased, convenience of a worker can be achieved, machining cost of the machine tool can be saved, stability and reliability of the machine tool can be improved, and the machine tool can be miniaturized.
Technical scheme
To achieve the object of the present invention, a tool magazine for a machine tool according to the present invention includes: a base part provided in a part of a space where the spindle head moves; a support part vertically provided to the base part; a rotation shaft portion rotatably provided to the support portion; a first tool accommodating portion rotatably provided in the rotation shaft portion and accommodating a plurality of tools radially with respect to a rotation center of the rotation shaft portion; and a second tool housing portion that is provided rotatably on the rotation shaft portion so as to be spaced apart from a vertically upper portion of the first tool housing portion, and that houses a plurality of tools radially about a rotation center of the rotation shaft portion, wherein the tool magazine of the machine tool may be configured such that a tool housing direction of the second tool housing portion is orthogonal to a tool housing direction of the first tool housing portion.
Furthermore, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the first tool housing portion of the tool magazine of a machine tool may include: a first body portion rotatably provided on the rotation shaft portion; and a plurality of first gripper units provided radially at a predetermined angle with respect to a rotation center of the rotation shaft unit, and gripped by a pressing tool.
Furthermore, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the second tool housing portion of the tool magazine of a machine tool may include: a second body portion rotatably provided on the rotation shaft portion so as to be spaced apart from a vertically upper portion of the first body portion; and a plurality of second gripper units provided radially at a predetermined angle on the second body unit with respect to the rotation center of the rotation shaft unit, and gripped by a pressing tool.
Further, according to another preferred embodiment of the tool magazine of a machine tool of the present invention, the tool magazine of a machine tool may be formed such that the diameter of the first main body portion is larger than the diameter of the second main body portion.
Further, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the first gripper section may be disposed on the first body section, and the second gripper section may be disposed on the second body section, so that a center line of each of the first gripper sections and a center line of each of the second gripper sections of the tool magazine of a machine tool are orthogonal to each other with respect to the rotation center.
Furthermore, according to a preferred further embodiment of the tool magazine of a machine tool according to the present invention, the first gripper section may be arranged on the first body section and the second gripper section may be arranged on the second body section such that an angle between centerlines of each of the first gripper sections and an angle between centerlines of each of the second gripper sections of the tool magazine of a machine tool are the same.
Furthermore, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the first gripper section may be arranged on the first body section and the second gripper section may be arranged on the second body section such that an angle between a center line of the first gripper section and a center line of the adjacent second gripper section of the tool magazine of a machine tool is the same.
Further, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, an inner diameter tool for machining an inner diameter of a workpiece may be provided in the tool provided in the first clamp portion of the tool magazine of the machine tool, and an outer diameter tool for machining an outer diameter of a workpiece may be provided in the tool provided in the second clamp portion.
Further, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the tool provided in the first clamp section of the tool magazine of a machine tool can be replaced when the spindle head is moved in the vertical direction, and the tool provided in the second clamp section can be replaced when the spindle head is moved in the horizontal direction.
Further, according to another preferred embodiment of the tool magazine of a machine tool according to the present invention, the tool magazine of a machine tool further includes a third tool housing portion that is spaced toward a vertically upper portion of the second tool housing portion and is rotatably provided to the rotary shaft portion, and that houses a plurality of tools radially about a rotation center of the rotary shaft portion, and the tool magazine of a machine tool may be provided such that a tool housing direction of the third tool housing portion is parallel to a tool housing direction of the second tool housing portion.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the tool magazine of the machine tool of the present invention, since the tool magazine of the machine tool is provided such that the tool accommodating direction of the second tool accommodating portion intersects the tool accommodating direction of the first tool accommodating portion, and when the spindle head is moved in the horizontal direction and the vertical direction, it is easy to replace the inner diameter tool and the outer diameter tool, and therefore, it is possible to minimize the non-machining time and increase the productivity of the machine tool.
According to the tool magazine of the machine tool of the present invention, the tool storage portions are stacked in multiple stages, so that tools mounted in the tool magazine can be enlarged, non-machining time can be reduced, tools for replacement can be easily stored, convenience and safety of workers can be achieved, and the machine tool can be made compact by downsizing the tool magazine.
Further, according to the tool magazine of the machine tool of the present invention, the inner diameter tool and the outer diameter tool can be used simultaneously and easily replaced, and thus, the stability and reliability of the machine tool can be improved.
Further, according to the tool magazine of the machine tool of the present invention, it is possible to store a plurality of tools, and to easily replace the outer diameter tool and the inner diameter tool, and when the tool is damaged, the tool can be quickly replaced to improve the machining accuracy of the machine tool, and to improve the satisfaction of the customer.
Drawings
Fig. 1 is a conceptual diagram illustrating a state in which a workpiece is machined by a conventional inner diameter tool.
Fig. 2 is a conceptual diagram showing a state where a workpiece is machined by a conventional outer diameter tool.
Fig. 3 is a conceptual diagram illustrating a state where a collision occurs in a state where an existing inner diameter tool and an outer diameter tool are combined.
Fig. 4 shows a perspective view of a tool magazine of a machine tool according to the invention.
Fig. 5 shows a partial plan view of fig. 4.
Fig. 6 to 8 show a process of replacing a tool in a first tool receiving portion of a tool magazine of a machine tool according to an embodiment of the present invention.
Fig. 9 to 11 show a process of replacing a tool in the second tool receiving portion of the tool magazine of the machine tool according to an embodiment of the present invention.
Detailed Description
Hereinafter, a detailed description will be given with reference to a diagram of a tool library of a machine tool according to an embodiment of the present invention. The embodiments described below are provided by way of example to fully convey the concept of the invention to those skilled in the art. Therefore, the present invention is not limited to the embodiments described below, and can be embodied in other forms. In the drawings, the size, thickness, and the like of the device may be enlarged for convenience. Throughout the specification, the same reference numerals denote the same constituent elements.
The advantages, features and methods of accomplishing the same will be apparent from the accompanying drawings and the examples which are described below. However, the present invention is not limited to the following examples, and may be embodied in other various forms. This embodiment is provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. Throughout the specification, the same reference numerals denote the same constituent elements. The dimensions and relative sizes of layers and regions in the figures may be exaggerated for clarity of illustration.
The terms used in the present specification are used to describe the embodiments and do not limit the present invention. In this specification, the singular forms also include the plural forms unless otherwise specified. The use of "including" and/or "consisting of" in the specification means that the constituent elements, steps, actions, and/or elements mentioned do not preclude the presence or addition of one or more other constituent elements, steps, actions, and/or elements.
Fig. 4 shows a perspective view of a tool magazine of a machine tool according to the present invention, fig. 5 shows a partial plan view of fig. 4, fig. 6 to 8 show a process of replacing a tool in a first tool receiving portion of the tool magazine of the machine tool according to an embodiment of the present invention, and fig. 9 to 11 show a process of replacing a tool in a second tool receiving portion of the tool magazine of the machine tool according to an embodiment of the present invention.
The terms used below are defined as follows. The "horizontal direction" refers to a lateral direction on the same member, the "vertical direction" refers to a height direction on the same member, which is orthogonal to the horizontal direction, and the "width direction" refers to a longitudinal direction on the same member, which is orthogonal to the horizontal direction and the vertical direction.
A tool magazine 1 of a machine tool according to an embodiment of the present invention is explained with reference to fig. 4 to 11. As shown in fig. 4 to 11, the tool magazine 1 of the machine tool according to the embodiment of the present invention includes a base portion 10, a
The tool magazine 1 of the machine tool according to the present invention is applicable to all machine tools that change tools by movement of the spindle head. The vertical turning center is illustrated by way of example in fig. 4 to 11, but not limited thereto, and the tool magazine 1 of the machine tool according to the present invention is applicable to all machine tools in which a tool is replaced by pressing a clamping tool of a clamper of the tool magazine by movement of a spindle head.
The base part 10 is provided in a part of a space where the
The
Although not shown, a driving portion for driving a
The numerical control unit includes NC (numerical control) or cnc (computerized numerical control), and various numerical control programs are embedded therein. That is, a drive program of a servo motor as a drive unit, a movable program of a tool, and the like are embedded in the numerical control unit, and the corresponding programs are automatically loaded and run in accordance with the drive of the numerical control unit. In addition, the numerical control part communicates with the main operation part and the PLC through a predetermined protocol.
The main operation unit includes a screen display program and a data input program displayed on a selection screen, and executes a function of displaying a software switch on the display screen according to an output of the screen display program and issuing an input/output command of a machine operation by recognizing on/off of the software switch.
However, the main operation unit is not limited to this, and is provided in a machine tool casing, a machine box, or one side thereof, and includes various function switches and buttons and a monitor capable of displaying various information.
A Programmable Logic Controller (PLC) communicates with the numerical control section or the main operation section through a predetermined protocol, and executes a function of executing a control command through such communication. That is, the PLC operates in response to a numerical control program of the numerical control unit or the main operation unit receiving a control command.
The
The first
The 2 nd
The second
Therefore, by providing the tool accommodating direction of the second
Therefore, the tool magazine of the machine tool according to the present invention is provided such that the tool accommodating direction of the second tool accommodating portion is orthogonal to the tool accommodating direction of the first tool accommodating portion, and when the spindle head is moved in the horizontal direction and the vertical direction, the inner diameter tool and the outer diameter tool are easily replaced, so that the non-machining time can be minimized, and the productivity of the machine tool can be improved.
As shown in fig. 4 to 5, the first
The
The plurality of
As shown in fig. 4 to 5, the second
The
The plurality of
As shown in fig. 4 to 11, in one embodiment of the present invention, the tool of the
As shown in fig. 4 to 11, in one embodiment of the present invention, the tool of the
According to the tool magazine of the machine tool of the present invention, the tool storage portions are stacked in multiple stages, so that tools mounted on the tool magazine are enlarged, the non-machining time is reduced, and tools for replacement can be easily stored.
As shown in fig. 4 and 5, the diameter D1 of the first main body portion of the first
As shown in fig. 4 to 11, the tool provided to the
Therefore, according to the tool magazine of the machine tool of the present invention, since the inner diameter tool and the outer diameter tool are used at the same time and are easily replaced, stability and reliability of the machine tool can be improved, a plurality of tools can be stored, and the outer diameter tool and the inner diameter tool can be easily replaced, and therefore, when the tools are damaged, the tools can be quickly replaced, machining precision of the machine tool can be improved, and customer satisfaction can be improved.
As shown in fig. 4 and 5, the
Therefore, since the first
As shown in fig. 4 and 5, each of the
Accordingly, since the first
As shown in fig. 4 and 5, the
Therefore, as the spindle head moves in the horizontal direction and the vertical direction, the inner diameter tool and the outer diameter tool are easily replaced, so that the non-machining time can be minimized, the productivity of the machine tool can be improved, and the tools for replacement can be easily stored, so that the convenience and safety of the worker can be improved, and the compactness of the machine tool can be improved by downsizing the tool magazine.
Although not shown, the tool magazine 1 of the machine tool according to the embodiment of the present invention may further include a third tool storage unit.
The third tool accommodating portion is spaced toward a vertically upper portion of the second
Therefore, the third tool accommodating portion is provided in the rotating portion so that the tool accommodating direction of the third tool accommodating portion is parallel to the tool accommodating direction of the second tool accommodating portion.
That is, the first
In addition, the third body portion of the third tool receiving portion has a diameter smaller than that of the second body portion of the second tool receiving portion. Therefore, when the spindle head moves in the vertical direction and the horizontal direction, the vertical tool and the horizontal tool are simultaneously replaced without interference, so that the non-machining time is reduced, thereby improving the productivity of the machine tool, accommodating a plurality of necessary tools, and facilitating the convenience of the user, and further, the first tool accommodating portion, the second tool accommodating portion, and the third tool accommodating portion are stacked in multiple stages, thereby minimizing the space occupied by the tool magazine, and finally achieving the compactness of the machine tool by the miniaturization of the tool magazine.
The operation principle of the tool magazine of the machine tool according to the present invention will be explained with reference to fig. 4 to 11.
As shown in fig. 6 to 8, the
Similarly, as shown in fig. 9 to 11, the
Therefore, the tool magazine of the machine tool according to the present invention is provided such that the tool accommodating direction of the second tool accommodating portion is orthogonal to the tool accommodating direction of the first tool accommodating portion, and the tools accommodated in the second tool accommodating portion and the first tool accommodating portion are orthogonal to each other and are provided in multiple stages, and the inner diameter tool and the outer diameter tool are easily replaced while the spindle head is moved in the horizontal direction and the vertical direction, so that the non-machining time is minimized, the productivity of the machine tool is improved, the tools for replacement can be easily stored, the convenience and safety of the worker can be improved, and the compactness of the machine tool can be improved by downsizing the tool magazine.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it will be understood by those skilled in the art to which the present invention pertains and those having ordinary knowledge in the art to which the present invention pertains that various modifications and changes can be made without departing from the spirit and scope of the present invention as set forth in the claims. Therefore, the technical scope of the present invention is determined by the scope of claims, not by the details described in the specification.
Reference numerals
1: tool library, 2: workpiece, 3: chuck, 4: tool post, 5: inner diameter tool holder, 6: inner diameter tool, 7: outer diameter tool holder, 8: outer diameter tool, 9: spindle head, 10: base portion, 20: support portion, 30: rotation shaft portion, 40: first tool accommodating portion, 41: first body portion, 42: first gripper section, 50: second tool accommodating portion, 51: second body portion, 52: second gripper section, a: center line of the first clamp section, B: center line of the second clamp portion, C: center of rotation, D1: diameter of the first body portion, D2: diameter of the second body portion, α: angle between the first centerlines, β: angle between the second center lines, θ: an angle between the first centerline and the second centerline.
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