WO2015102424A1 - Chuck for mounting workpiece - Google Patents

Chuck for mounting workpiece Download PDF

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Publication number
WO2015102424A1
WO2015102424A1 PCT/KR2015/000012 KR2015000012W WO2015102424A1 WO 2015102424 A1 WO2015102424 A1 WO 2015102424A1 KR 2015000012 W KR2015000012 W KR 2015000012W WO 2015102424 A1 WO2015102424 A1 WO 2015102424A1
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WO
WIPO (PCT)
Prior art keywords
chuck
support
base jaw
sliding
present
Prior art date
Application number
PCT/KR2015/000012
Other languages
French (fr)
Korean (ko)
Inventor
김도훈
Original Assignee
김도훈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김도훈 filed Critical 김도훈
Publication of WO2015102424A1 publication Critical patent/WO2015102424A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/32—Guideways for jaws

Definitions

  • the present invention relates to a workpiece mounting chuck, and more particularly, to a workpiece mounting chuck that can grip a workpiece more firmly.
  • lathes which are categorized as manually operated universal lathes (manual lathes), automatically operated numerically controlled lathes and computer numerically controlled lathes. Can be.
  • a computer numerical control lathe is a machine tool equipped with a controller on a general-purpose lathe, which has the advantage of being able to automatically machine various parts by a program.
  • the computer numerical control lathe consists of a controller which is an electronic device that can automatically operate the machine and a machine body which is a machine, where the controller controls the operation of the machine body by CNC system program, PLC program, etc.
  • the main body is similar to the structure of the general-purpose lathe with head stock, chuck, tool post, tail stock, bed, shuttle, feeder, hydraulic system, etc. It is composed.
  • the lathe chuck is installed at the end of the spindle to hold the workpiece, and may be formed of a normal chuck, a pneumatic chuck, a hydraulic chuck, a collet chuck, a magnetic chuck, etc., usually three or four jaws.
  • the jaw is formed in a structure that grips the object while moving in conjunction with each other.
  • the heavy material chuck has a problem that it cannot be used for a long time because the inertial load on the equipment motor becomes large.
  • An object of the present invention is to provide a workpiece mounting chuck that can reduce the chuck weight.
  • an object of the present invention is to provide a workpiece mounting chuck which can grip the workpiece more firmly while reducing the weight of the chuck.
  • the present invention provides a chuck body; And a base jaw installed on the chuck body, wherein the chuck body includes a guide portion for guiding movement of the base jaw, and the guide portion slides to guide the base jaw to move. It includes a part, the sliding part provides a workpiece mounting chuck, characterized in that inclined at a predetermined angle relative to the ground.
  • the present invention is the base jaw extends from the body portion constituting the body and the body portion, and includes a support for supporting the body portion, the support portion characterized in that the workpiece is inclined at a predetermined angle relative to the ground Provide a mounting chuck.
  • the present invention provides a workpiece mounting chuck characterized in that the inclination angle of the predetermined angle of the sliding portion and the support.
  • the present invention is the sliding portion includes one end and the other end, one end of the sliding portion is the first insertion portion of the sliding portion into which the support is first inserted, the height from the ground of one end of the sliding portion is the other side of the sliding portion A workpiece mounting chuck is provided which is higher than the height from the ground at the end.
  • the present invention is the support portion includes one end and the other end, the other end of the support is the first insertion portion of the support portion is first inserted into the sliding portion, the height from the ground of one end of the support is the other side of the support A workpiece mounting chuck is provided which is higher than the height from the ground at the end.
  • the present invention further includes a reinforcing part positioned in a predetermined region of the sliding part, and the reinforcing part provides a workpiece mounting chuck, which is inclined at a predetermined angle with respect to the ground.
  • the reinforcing part includes a first reinforcing part and a second reinforcing part
  • the first reinforcing part includes a first horizontal reinforcing part and a second horizontal reinforcing part
  • the second reinforcing part is a vertical reinforcing part
  • a first horizontal reinforcement part is connected to one side of the vertical reinforcement part
  • the second horizontal reinforcement part is connected to the other side of the vertical reinforcement part
  • the first horizontal reinforcement part and the second horizontal reinforcement part are inclined at a predetermined angle with respect to the ground.
  • the present invention is characterized in that the base jaw extends from the body portion constituting the body and the body portion, the support portion for supporting the body portion, the support portion is inclined at a predetermined angle relative to the ground,
  • the first horizontal reinforcing part and the second horizontal reinforcing part and the support angle provides a workpiece mounting chuck, characterized in that the same angle.
  • the chuck body made of aluminum alloy material having a specific gravity lower than the mechanical structural alloy steel and carbon steel, it is possible to configure a lightweight chuck.
  • the strength or rigidity of the sliding part can be reinforced through the reinforcing part.
  • the support portion of the base jaw moves along the sliding portion of the chuck body.
  • the force of acts at the same time, and therefore, the grip part grips the object, so that the force in the X-axis direction and the force in the Y-axis direction act simultaneously, so that the object can be gripped more firmly.
  • the object to be processed may be gripped in a state of being closely and uniformly in contact with the reference plane.
  • Figure 1 is an exploded perspective view of the workpiece mounting chuck according to the first embodiment of the present invention
  • Figure 2 is a plan view of the overlap of the workpiece mounting chuck according to the first embodiment of the present invention.
  • FIG 3 is an exploded perspective view showing an example of the base jaw and the top jaw of the workpiece mounting chuck according to the first embodiment of the present invention
  • Figure 4 is a base jaw and top of the workpiece mounting chuck according to the first embodiment of the present invention It is a perspective view showing an example of a jaw.
  • FIG. 5 is a schematic view for explaining a coupling relationship between a sliding part of a chuck body of a workpiece mounting chuck and a support of a base jaw according to a first embodiment of the present invention
  • FIG. 6 is a chuck body of a workpiece mounting chuck having a general structure.
  • Figure is a schematic diagram for explaining the connection between the sliding portion of the support portion of the base jaw.
  • FIG. 7 is an exploded perspective view of a workpiece mounting chuck according to a second embodiment of the present invention
  • FIG. 8 is a partially separated perspective view showing a part of FIG. 7.
  • FIG. 9 is a perspective view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention
  • FIG. 10 is a front view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention.
  • first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.
  • spatially relative terms below “, “ beneath “, “ lower”, “ above “, “ upper” It can be used to easily describe a component's correlation with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as “below” or “beneath” of another component may be placed “above” the other component. Can be. Thus, the exemplary term “below” can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.
  • FIG. 1 is an exploded perspective view of a workpiece mounting chuck according to a first embodiment of the present invention
  • Figure 1b is a plan view of the overlap of the workpiece mounting chuck according to the first embodiment of the present invention.
  • FIG. 1B For convenience of description, only one chuck described later is illustrated in the perspective view of FIG. 1, and in the plan view of FIG. 1B, three chucks are illustrated.
  • the workpiece mounting chuck 100 may be installed at a predetermined end of a main shaft (not shown) of the lathe, and may be rotated together with the main shaft while holding a workpiece.
  • the workpiece mounting chuck 100 is installed on a predetermined end of the main shaft of the shelf chuck body 200, the chuck body (rotated integrally)
  • a plurality is installed on the 200 and includes a base jaw 300 that moves in a radial direction on the chuck body (200).
  • the chuck body 200 is a workpiece mounting chuck 100 according to the present invention to form a basic body, although not shown, the main axis of the universal shelf (manual lathe), numerical control lathe or computer numerical control lathe (not shown) May be installed at the end and rotated integrally with the main shaft.
  • the chuck body 200 may include a guide part 210 for guiding the movement of the base jaw 300, and the guide part 210 may be formed in plural numbers while maintaining a predetermined interval.
  • the guide may be at least two or more, therefore, the number of the guide portion in the present invention is not limited.
  • the guide part 210 may include a sliding part 211 that guides the base jaw to move while supporting the support part 330 of the base jaw 300 to be described later.
  • the sliding part 211 may include a first sliding part 211a located on the first side of the guide part and a second sliding part 211b located on the second side of the guide part.
  • the first support portion 330a of 300 contacts the first sliding portion 211a
  • the second support portion 330b of the base jaw 300 contacts the second sliding portion 211b.
  • the jaw can move along the guide portion.
  • the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the sliding part 211 is inclined, which will be described later.
  • the jaw 300 moves radially on the chuck body 200 and serves to enable the movement of the top jaw to be described later.
  • the chuck body 200 The guide portion 210 of the can be installed to be movable.
  • the base jaw 300 is located in a body portion 310 constituting the body, a predetermined region of the body portion, extending from the fastening portion 320 and the body portion for fastening to the T-nut to be described later, and supports the body portion It includes a support 330 for.
  • the support portion 330 includes a first support portion 330a extending to the first side of the body portion and a second support portion 330b extending to the second side of the body portion, and as described above, The first support part 330a contacts the first sliding part 211a, and the second support part 330b of the base jaw 300 contacts the second sliding part 211b, and the base jaw is guided. Can move along wealth.
  • the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the support 330 is inclined, which will be described later.
  • the base jaw 300 can be moved inward or outward in the radial direction along the guide portion 210 by the interlock of the mechanical interlocking configuration, such as pneumatic or hydraulic or scroll, Since it is already known in the fields of general purpose shelves (manual lathe), numerical control lathe and computer numerical control lathe, such a detailed description will be omitted.
  • the mechanical interlocking configuration such as pneumatic or hydraulic or scroll
  • the base jaw (300) is to convey the top jaw to be described later inward or outward in the radial direction, and all configurations known in the fields such as universal lathe (manual lathe), numerical control lathe and computer numerical control lathe It may include.
  • the chuck body 200 is preferably made of an aluminum alloy.
  • the aluminum alloy may be an aluminum 60 series or an aluminum 70 series, but the type of the aluminum alloy is not limited in the present invention.
  • Table 1 shows an example of an aluminum 60 series or an aluminum 70 series.
  • the chuck body is made of an aluminum alloy material having a specific gravity lower than that of the mechanical structural alloy steel and carbon steel, thereby making it possible to construct a lightweight chuck.
  • high-speed machining is required to process difficult-to-machine special materials such as aircraft parts, and the most important factor for high-speed machining corresponds to the weight of the object to be rotated.
  • This easy lightweight chuck can be provided.
  • the productivity of the chuck can be expected to be improved.
  • FIG 3 is an exploded perspective view showing an example of the base jaw and the top jaw of the workpiece mounting chuck according to the first embodiment of the present invention
  • Figure 4 is a base jaw and top of the workpiece mounting chuck according to the first embodiment of the present invention It is a perspective view showing an example of a jaw.
  • the workpiece mounting chuck includes a base jaw 300 and the top jaw 350, for fastening the base jaw and the top jaw mutually T-nut 340 may be included.
  • the base jaw 300 is located in the body portion 310 constituting the body, the predetermined portion of the body portion, extending from the fastening portion 320 and the body portion for fastening to the T-nuts to be described later And a support part 330 for supporting the body part, wherein the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part. It includes.
  • top jaw 350 is the body portion 351 constituting the body, the gripping portion 352 for gripping the object to be processed or the gripping object to be processed and the fastening hole 353 for fastening with the T-nuts to be described later It includes.
  • the T-nut 340 is a body portion 342 constituting the body, protrusions (341a, 341b, 341) for fastening with the fastening portion of the base jaw and a fastening groove for fastening with the fastening hole of the top jaw (343).
  • the protrusion of the T-nut is inserted into and supported by the fastening portion of the base jaw, and the fastening hole of the top jaw and the fastening groove of the T-nut are fastened by a screw or bolt 360, thereby providing the T-nut.
  • the base jaw and the top jaw show an example.
  • the base jaw and the top jaw may be an integrated structure, and the base jaw and the top jaw may be fastened to each other through the T-nut.
  • it can be simply fastened without having a T-nut, and thus does not limit the configuration of the base jaw and the top jaw in the present invention.
  • FIG. 5 is a schematic view for explaining a coupling relationship between a sliding part of a chuck body of a workpiece mounting chuck and a support of a base jaw according to a first embodiment of the present invention
  • FIG. 6 is a chuck body of a workpiece mounting chuck having a general structure.
  • Figure is a schematic diagram for explaining the connection between the sliding portion of the support portion of the base jaw.
  • the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the sliding part 211 of the chuck body is inclined, and the base jaw of the The support 330 is inclined.
  • the sliding part 211 may be inclined at a predetermined angle ⁇ based on the ground, and the predetermined angle ⁇ may be 0.5 ° to 10 °, for example, 1 °, 2 °, You can set a certain angle such as 3 °, 4 ° ...
  • the support 330 may be inclined at a predetermined angle ⁇ based on the ground, and the predetermined angle ⁇ may be 0.5 ° to 10 °, for example, 1 °, 2 °, and 3 degrees. You can set a certain angle such as °, 4 ° ...
  • the ground may be an imaginary line to present an angle reference.
  • the inclination angle ⁇ of the sliding part 211 and the support part 330 is the same.
  • the right region of the sliding part 211 may be defined as one end of the sliding part and the left region of the sliding part 211 may be defined as the other end of the sliding part.
  • One end of the sliding part may be a sliding part first insertion part into which the support part is first inserted.
  • the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the sliding portion than the height from the ground of the other end of the sliding portion It is characterized by high.
  • the ground may be an imaginary line for presenting a standard of height.
  • the right region of the support 330 of FIG. 3 may be defined as one end of the support and the left region of the support 330 as the other end of the support. In this case, the other end of the support is first inserted into the sliding part.
  • the support may be the initial insert.
  • the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the support is higher than the height from the ground of the other end of the support It is characterized by.
  • the ground may be an imaginary line for presenting a standard of height.
  • the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part.
  • the first support part 330a of the base jaw 300 is in contact with the first sliding part 211a
  • the second support part 330b of the base jaw 300 is the second sliding part ( While contacting 211b), the base jaw can move along the guide portion.
  • reference numeral 400 shows the direction of movement of the support portion 330 in the sliding portion.
  • the top jaw fastened to the base jaw may include a gripping portion 352. As the base jaw moves, the top jaw also moves. As the jaw moves, the gripping part 352 moves, and the gripping part 352 may grasp the object to be processed or release the gripping object.
  • the support part of the base jaw moves along the sliding part of the chuck body. It moves in the X + Y direction as shown in FIG.
  • the X + Y direction eventually corresponds to the sum of the movement in the X-axis direction and the movement in the Y-axis direction.
  • reference numeral 40 shows the moving direction of the support portion 330 in the sliding portion.
  • the support portion of the base jaw moves along the sliding portion of the chuck body in the X-axis direction. Force in the Y-axis direction and the force in the Y-axis direction at the same time, therefore, when the gripper grips the workpiece, the force in the X-axis direction and the force in the Y-axis direction at the same time, thereby holding the workpiece more firmly. have.
  • the object to be processed may be gripped in a state of being closely and uniformly in contact with the reference plane.
  • FIG. 7 is an exploded perspective view of a workpiece mounting chuck according to a second embodiment of the present invention
  • FIG. 8 is a partially separated perspective view showing a part of FIG. 7.
  • the workpiece chuck according to the second embodiment of the present invention may be the same as the workpiece chuck according to the first embodiment except as will be described later.
  • the workpiece mounting chuck 100 ′ is installed at a predetermined end of a main shaft of a lathe, and the chuck body 200 rotates integrally with the chuck body 200.
  • a plurality is installed on the 200 and includes a base jaw 300 that moves in a radial direction on the chuck body (10).
  • the chuck body 200 includes a guide portion 210 for guiding the movement of the base jaw 300, the guide portion 210 supports the support portion 330 of the base jaw 300, It may include a sliding portion 211 for guiding the base jaw to move.
  • the sliding part 211 may include a first sliding part 211a located on the first side of the guide part and a second sliding part 211b located on the second side of the guide part. Since it is the same as the first embodiment, the following detailed description will be omitted, and the configuration of the jaw of the second embodiment is also the same as the above-described first embodiment, and thus the detailed description will be omitted.
  • the workpiece mounting chuck 100 ′ is characterized in that it comprises a reinforcing part 400 located in a predetermined region of the sliding part.
  • the chuck body 200 is preferably made of an aluminum alloy.
  • the aluminum alloy chuck body may constitute a lightweight chuck, but in the case of the aluminum alloy material, wear or tear may occur easily.
  • the workpiece mounting chuck 100 ′ according to the second embodiment of the present invention includes a reinforcement part 400 in a predetermined region of the sliding part, and through the reinforcement part, may reinforce the strength or rigidity of the sliding part. have.
  • the sliding portion 211 is a portion in which the load acts the most among the chuck body portions in the movement of the base jaw, and by including the reinforcement portion, it is able to withstand the load acting according to the movement of the base jaw.
  • the reinforcement unit 400 may be made of stainless steel, mechanical structural alloy steel, or mechanical structural carbon steel, which is a common chuck material for reinforcing strength or rigidity.
  • FIG. 9 is a perspective view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention
  • FIG. 10 is a front view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention.
  • the reinforcement part 400 of the workpiece mounting chuck of the present invention may include first reinforcement parts 410 and 430 and a second reinforcement part 420, and the first reinforcement part.
  • the second steel part may include an inner side surface and an outer side surface, respectively.
  • the first reinforcement parts 410 and 430 may be horizontal reinforcement parts, and the second reinforcement parts 420 may be vertical reinforcement parts.
  • horizontal and vertical terms used in the present invention are for convenience of description. The scope of the present invention is not limited to the meaning of the term.
  • the first reinforcing part may include a first horizontal reinforcing part 410 and a second horizontal reinforcing part 430, and the first horizontal reinforcing part 410 is the second reinforcing part, that is, It is connected to one side of the vertical reinforcing portion 420, the second horizontal reinforcing portion 430 may be connected to the other side of the vertical reinforcing portion 420.
  • the reinforcement portion in the present invention may be formed in a substantially "c" shape.
  • the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part, and
  • the first support part 330a is in contact with the first sliding part 211a
  • the second support part 330b of the base jaw 300 is in contact with the second sliding part 211b
  • the base jaw is in contact with the guide part. Can move along.
  • the support portion contacts the sliding portion, the support portion contacts at the third point of the lower surface, the upper surface and the side surface thereof, so that the reinforcement portion is approximately "c" in order to reinforce the wear caused by the contact at the third point.
  • It can be configured in the form.
  • the shape of the reinforcement part may be arbitrarily designed in consideration of the contact state between the support part and the sliding part, and thus, the shape of the reinforcement part is not limited in the present invention.
  • the reinforcing part 400 according to the second exemplary embodiment of the present invention is inclined.
  • the horizontal reinforcing parts 410 and 430 of the reinforcing part 400 may be inclined at a predetermined angle ⁇ based on the ground, and the predetermined angle ⁇ may be 0.5 ° to 10 °.
  • the predetermined angle ⁇ may be 0.5 ° to 10 °.
  • the ground may be an imaginary line to present an angle reference.
  • the inclination angles ⁇ of the horizontal reinforcing parts 410 and 430, the sliding part 211, and the support part 330 are the same.
  • the right end of the reinforcement part may be defined as one end of the reinforcement part, and the left end of the reinforcement part may be defined as the other end of the reinforcement part.
  • the reinforcement to be inserted first may be the first insertion.
  • the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the reinforcement portion is higher than the height from the ground of the other end of the reinforcement portion It is characterized by.
  • the ground may be an imaginary line for presenting a standard of height.
  • the support part of the base jaw moves along the reinforcement part of the chuck body in the X-axis direction. Force in the Y-axis direction and the force in the Y-axis direction at the same time, therefore, when the gripper grips the workpiece, the force in the X-axis direction and the force in the Y-axis direction at the same time, thereby holding the workpiece more firmly. have.
  • the first horizontal reinforcement part 410 includes a first horizontal reinforcement part inner side surface 410a and a first horizontal reinforcement part outer side surface 410b
  • the second horizontal reinforcement part 430 is a second horizontal reinforcement part.
  • the vertical reinforcing portion 420 includes a vertical reinforcing portion inner surface 420a and a vertical reinforcing portion outer surface 420b.
  • each of the outer surface that is, the first horizontal reinforcing portion outer surface 410b, the second horizontal reinforcing portion outer surface 430b and the vertical reinforcing portion outer surface 420b are sliding parts and reinforcement. It may include concave and convex parts for a firm coupling of the parts.
  • the contact area with the sliding part is increased by the yaw part and the iron part, and according to the increased contact area, it is possible to maintain a firm coupling between the sliding part and the reinforcing part.
  • the chuck body made of aluminum alloy material having a specific gravity lower than the mechanical structural alloy steel and carbon steel, it is possible to configure a lightweight chuck.
  • the strength or rigidity of the sliding part can be reinforced through the reinforcing part.
  • the support portion of the base jaw moves along the sliding portion of the chuck body.
  • the force of acts at the same time, and therefore, the grip part grips the object, so that the force in the X-axis direction and the force in the Y-axis direction act simultaneously, so that the object can be gripped more firmly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

The present invention relates to a chuck for mounting a workpiece comprising: a chuck body; and a base jaw installed on the chuck body, wherein the chuck body comprises a guide part for guiding the movement of the base jaw, the guide part including a sliding part for guiding the base jaw such that the base jaw can move, the sliding part being inclined at a certain angle with respect to the ground. Since the sliding part of the chuck body and a support part of the base jaw are formed to be inclined, when the support part of the base jaw moves along the sliding part of the chuck body, force in the direction of the X axis and force in the direction of the Y axis are applied simultaneously. Thus, since the force in the direction of the X axis and the force in the direction of the Y axis are applied simultaneously when a gripping part grips an object to be processed, the object to be processed can be gripped more firmly.

Description

공작물 장착용 척Workpiece mounting chuck
본 발명은 공작물 장착용 척에 관한 것으로서, 더욱 상세하게는 보다 견고하게 가공대상물을 파지할 수 있는 공작물 장착용 척에 관한 것이다.The present invention relates to a workpiece mounting chuck, and more particularly, to a workpiece mounting chuck that can grip a workpiece more firmly.
공작물을 기계적으로 가공하는 공작기계들 중에서 가장 많이 사용되는 것으로 선반을 들 수 있는데, 이러한 선반은 수동으로 작동되는 범용선반(수동 선반)과, 자동으로 작동되는 수치제어 선반 및 컴퓨터 수치제어 선반으로 분류될 수 있다.Among the most popular machine tools for mechanically machining workpieces are lathes, which are categorized as manually operated universal lathes (manual lathes), automatically operated numerically controlled lathes and computer numerically controlled lathes. Can be.
특히, CNC 선반으로 불려지는 컴퓨터 수치제어 선반은 범용선반에 컨트롤러(controller)를 장착한 공작기계로서 프로그램에 의해 자동으로 각종 부품을 가공할 수 있다는 장점이 있다.In particular, a computer numerical control lathe, called a CNC lathe, is a machine tool equipped with a controller on a general-purpose lathe, which has the advantage of being able to automatically machine various parts by a program.
컴퓨터 수치제어 선반은 자동으로 기계를 동작시킬 수 있는 전자장치인 컨트롤러와 기계장치인 기계본체로 구성되는데, 여기서 컨트롤러는 CNC 시스템 프로그램, PLC 프로그램 등에 의해 기계본체의 작동을 제어하는 역할을 하며, 기계본체는 범용선반의 구조와 유사하게 주축대(head stock), 척(chuck), 공구대(tool post), 심압대(tail stock), 베드(bed), 왕복대, 이송장치, 유압장치 등으로 구성된다.The computer numerical control lathe consists of a controller which is an electronic device that can automatically operate the machine and a machine body which is a machine, where the controller controls the operation of the machine body by CNC system program, PLC program, etc. The main body is similar to the structure of the general-purpose lathe with head stock, chuck, tool post, tail stock, bed, shuttle, feeder, hydraulic system, etc. It is composed.
이때, 선반용 척은 주축 단부에 설치되어 가공대상물을 파지하는 것으로, 보통척, 공압척, 유압척, 콜릿척(collet chuck), 마그네틱척 등으로 형성될 수 있는데, 보통 3개 또는 4개의 죠(jaw)가 각각 또는 연동되어 이동되면서 가공대상물을 파지하는 구조로 형성된다.At this time, the lathe chuck is installed at the end of the spindle to hold the workpiece, and may be formed of a normal chuck, a pneumatic chuck, a hydraulic chuck, a collet chuck, a magnetic chuck, etc., usually three or four jaws. The jaw is formed in a structure that grips the object while moving in conjunction with each other.
한편, 척의 대부분은 기계구조용 합금강 또는 기계구조용 탄소강으로 제작된다. 하지만, 기계구조용 합금강 및 탄소강은 비중이 7.77 정도로, 재료가 무겁기 때문에 그에 따른 장비(공작기계)도 커지게 되고, 사용 전력도 늘어나기 때문에 비효율적이라는 문제점이 있다.On the other hand, most of the chuck is made of mechanical structural alloy steel or mechanical structural carbon steel. However, mechanical structural alloy steel and carbon steel have a specific gravity of about 7.77, and because of the heavy material, the equipment (machine tool) accordingly becomes large, and there is a problem that it is inefficient because the power used increases.
또한, 최근의 트랜드인 고속 가공이라는 면에 있어서도, 무거운 재질의 척은 장비 모터에 걸리는 관성부하가 커지기 때문에 장시간 사용이 불가능하다는 문제점이 있다.In addition, even in the aspect of high speed machining, which is a recent trend, the heavy material chuck has a problem that it cannot be used for a long time because the inertial load on the equipment motor becomes large.
본 발명이 해결하고자 하는 과제는 척 무게를 감소시킬 수 있는 공작물 장착용 척을 제공하는데 그 목적이 있다.An object of the present invention is to provide a workpiece mounting chuck that can reduce the chuck weight.
또한, 본 발명은 척의 무게를 감소시키면서, 이와 동시에 보다 견고하게 가공대상물을 파지할 수 있는 공작물 장착용 척을 제공하는데 그 목적이 있다.In addition, an object of the present invention is to provide a workpiece mounting chuck which can grip the workpiece more firmly while reducing the weight of the chuck.
본 발명의 목적들은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.
상기 지적된 문제점을 해결하기 위해서 본 발명은 척바디; 및 상기 척바디 상에 설치되는 베이스 죠를 포함하는 공작물 장착용 척에 있어서, 상기 척바디는 상기 베이스 죠의 이동을 안내하는 가이드부를 포함하고, 상기 가이드부는 상기 베이스 죠가 이동할 수 있도록 가이드하는 슬라이딩부를 포함하며, 상기 슬라이딩부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척을 제공한다.In order to solve the above-mentioned problems, the present invention provides a chuck body; And a base jaw installed on the chuck body, wherein the chuck body includes a guide portion for guiding movement of the base jaw, and the guide portion slides to guide the base jaw to move. It includes a part, the sliding part provides a workpiece mounting chuck, characterized in that inclined at a predetermined angle relative to the ground.
또한, 본 발명은 상기 베이스 죠는 몸체를 이루는 몸체부 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부를 포함하며, 상기 지지부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention is the base jaw extends from the body portion constituting the body and the body portion, and includes a support for supporting the body portion, the support portion characterized in that the workpiece is inclined at a predetermined angle relative to the ground Provide a mounting chuck.
또한, 본 발명은 상기 슬라이딩부와 상기 지지부의 일정 각도의 경사각은 동일한 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention provides a workpiece mounting chuck characterized in that the inclination angle of the predetermined angle of the sliding portion and the support.
또한, 본 발명은 상기 슬라이딩부는 일측 끝단 및 타측 끝단을 포함하고, 상기 슬라이딩부의 일측 끝단은 상기 지지부가 최초로 삽입되는 슬라이딩부 최초 삽입부이며, 상기 슬라이딩부의 일측 끝단의 지면으로부터의 높이는 상기 슬라이딩부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention is the sliding portion includes one end and the other end, one end of the sliding portion is the first insertion portion of the sliding portion into which the support is first inserted, the height from the ground of one end of the sliding portion is the other side of the sliding portion A workpiece mounting chuck is provided which is higher than the height from the ground at the end.
또한, 본 발명은 상기 지지부는 일측 끝단 및 타측 끝단을 포함하고, 상기 지지부의 타측 끝단은 상기 슬라이딩부에 최초로 삽입되는 지지부 최초 삽입부이며, 상기 지지부의 일측 끝단의 지면으로부터의 높이는 상기 지지부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention is the support portion includes one end and the other end, the other end of the support is the first insertion portion of the support portion is first inserted into the sliding portion, the height from the ground of one end of the support is the other side of the support A workpiece mounting chuck is provided which is higher than the height from the ground at the end.
또한, 본 발명은 상기 슬라이딩부의 일정 영역에 위치하는 보강부를 더 포함하고, 상기 보강부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention further includes a reinforcing part positioned in a predetermined region of the sliding part, and the reinforcing part provides a workpiece mounting chuck, which is inclined at a predetermined angle with respect to the ground.
또한, 본 발명은 상기 보강부는 제1보강부 및 제2보강부를 포함하고, 상기 제1보강부는 제1수평보강부 및 제2수평보강부를 포함하며, 상기 제2보강부는 수직보강부이며, 상기 제1수평보강부는 상기 수직보강부의 일측과 연결되고, 상기 제2수평보강부는 상기 수직보강부의 타측과 연결되며, 상기 제1수평보강부 및 상기 제2수평보강부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention, the reinforcing part includes a first reinforcing part and a second reinforcing part, the first reinforcing part includes a first horizontal reinforcing part and a second horizontal reinforcing part, the second reinforcing part is a vertical reinforcing part, A first horizontal reinforcement part is connected to one side of the vertical reinforcement part, and the second horizontal reinforcement part is connected to the other side of the vertical reinforcement part, and the first horizontal reinforcement part and the second horizontal reinforcement part are inclined at a predetermined angle with respect to the ground. It provides a workpiece mounting chuck characterized in that the photograph.
또한, 본 발명은 상기 베이스 죠는 몸체를 이루는 몸체부 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부를 포함하며, 상기 지지부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하고, 상기 제1수평보강부 및 상기 제2수평보강부와 상기 지지부의 일정 각도의 경사각은 동일한 것을 특징으로 하는 공작물 장착용 척을 제공한다.In addition, the present invention is characterized in that the base jaw extends from the body portion constituting the body and the body portion, the support portion for supporting the body portion, the support portion is inclined at a predetermined angle relative to the ground, The first horizontal reinforcing part and the second horizontal reinforcing part and the support angle provides a workpiece mounting chuck, characterized in that the same angle.
상기한 바와 같은 본 발명에 따르면, 기계구조용 합금강 및 탄소강 보다 비중이 낮은 알루미늄 합금 재질로 척바디를 구성함으로써, 경량의 척을 구성할 수 있다.According to the present invention as described above, by constructing the chuck body made of aluminum alloy material having a specific gravity lower than the mechanical structural alloy steel and carbon steel, it is possible to configure a lightweight chuck.
따라서, 척의 무게가 감소한 만큼 그에 따른 장비(공작기계)의 크기와 설치공간을 줄일 수 있을 뿐만 아니라, 장비에 가하는 부하 및 하중이 줄어들기 때문에 사용 전력을 감소시킬 수 있고, 또한, 장비의 수명이 늘어날 수 있다.Therefore, as the weight of the chuck decreases, not only the size and installation space of the equipment (machine tool) can be reduced, but also the power and the life of the equipment can be reduced because the load and load on the equipment are reduced. Can increase.
또한, 본 발명에서는 슬라이딩부의 일정 영역에 위치하는 보강부를 포함함으로써, 상기 보강부를 통해, 상기 슬라이딩부의 강도 또는 강성을 보강할 수 있다.In addition, in the present invention, by including a reinforcing part located in a predetermined region of the sliding part, the strength or rigidity of the sliding part can be reinforced through the reinforcing part.
또한, 본 발명에서는 상기 척바디의 슬라이딩부 및 상기 베이스 죠의 지지부가 경사지도록 형성되기 때문에, 상기 베이스 죠의 지지부가 상기 척 바디의 슬라이딩부를 따라 이동함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하게 되고, 따라서, 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하므로, 보다 견고하게 가공대상물을 파지할 수 있다.Further, in the present invention, since the sliding portion of the chuck body and the support portion of the base jaw are formed to be inclined, the support portion of the base jaw moves along the sliding portion of the chuck body. The force of acts at the same time, and therefore, the grip part grips the object, so that the force in the X-axis direction and the force in the Y-axis direction act simultaneously, so that the object can be gripped more firmly.
또한, 가공대상물을 파지함에 있어서, 상기 가공대상물이 기준면에 정확하게 일률적으로 밀착된 상태에서 파지될 수 있다.In addition, in holding the object to be processed, the object to be processed may be gripped in a state of being closely and uniformly in contact with the reference plane.
도 1은 본 발명의 제1실시예에 따른 공작물 장착용 척의 분리 사시도이고, 도 2는 본 발명의 제1실시예에 따른 공작물 장착용 척의 겹합 평면도이다. 1 is an exploded perspective view of the workpiece mounting chuck according to the first embodiment of the present invention, Figure 2 is a plan view of the overlap of the workpiece mounting chuck according to the first embodiment of the present invention.
도 3은 본 발명의 제1실시예에 따른 공작물 장착용 척의 베이스 죠와 탑 죠의 일례를 도시한 분리사시도이고, 도 4는 본 발명의 제1실시예에 따른 공작물 장착용 척의 베이스 죠와 탑 죠의 일례를 도시한 결합사시도이다.3 is an exploded perspective view showing an example of the base jaw and the top jaw of the workpiece mounting chuck according to the first embodiment of the present invention, Figure 4 is a base jaw and top of the workpiece mounting chuck according to the first embodiment of the present invention It is a perspective view showing an example of a jaw.
도 5는 본 발명의 제1실시예에 따른 공작물 장착용 척의 척바디의 슬라이딩부와 베이스 죠의 지지부의 체결관계를 설명하기 위한 개략적인 도면이고, 도 6은 일반적인 구조의 공작물 장착용 척의 척바디의 슬라이딩부와 베이스 죠의 지지부의 체결관계를 설명하기 위한 개략적인 도면이다.FIG. 5 is a schematic view for explaining a coupling relationship between a sliding part of a chuck body of a workpiece mounting chuck and a support of a base jaw according to a first embodiment of the present invention, and FIG. 6 is a chuck body of a workpiece mounting chuck having a general structure. Figure is a schematic diagram for explaining the connection between the sliding portion of the support portion of the base jaw.
도 7은 본 발명의 제2실시예에 따른 공작물 장착용 척의 분리 사시도이고, 도 8은 도 7의 일부를 도시한 일부 분리 사시도이다. 7 is an exploded perspective view of a workpiece mounting chuck according to a second embodiment of the present invention, and FIG. 8 is a partially separated perspective view showing a part of FIG. 7.
도 9는 본 발명의 공작물 장착용 척의 보강부의 일례를 도시한 사시도이고, 도 10은 본 발명의 공작물 장착용 척의 보강부의 일례를 도시한 정면도이다. 9 is a perspective view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention, and FIG. 10 is a front view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.
아래 첨부된 도면을 참조하여 본 발명의 실시를 위한 구체적인 내용을 상세히 설명한다. 도면에 관계없이 동일한 부재번호는 동일한 구성요소를 지칭하며, "및/또는"은 언급된 아이템들의 각각 및 하나 이상의 모든 조합을 포함한다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Regardless of the drawings, the same reference numbers refer to the same components, and “and / or” includes each and every combination of one or more of the items mentioned.
비록 제1, 제2 등이 다양한 구성요소들을 서술하기 위해서 사용되나, 이들 구성요소들은 이들 용어에 의해 제한되지 않음은 물론이다. 이들 용어들은 단지 하나의 구성요소를 다른 구성요소와 구별하기 위하여 사용하는 것이다. 따라서, 이하에서 언급되는 제1 구성요소는 본 발명의 기술적 사상 내에서 제2 구성요소일 수도 있음은 물론이다.Although the first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.
본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성요소 외에 하나 이상의 다른 구성요소의 존재 또는 추가를 배제하지 않는다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components.
다른 정의가 없다면, 본 명세서에서 사용되는 모든 용어(기술 및 과학적 용어를 포함)는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 공통적으로 이해될 수 있는 의미로 사용될 수 있을 것이다. 또 일반적으로 사용되는 사전에 정의되어 있는 용어들은 명백하게 특별히 정의되어 있지 않는 한 이상적으로 또는 과도하게 해석되지 않는다.Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.
공간적으로 상대적인 용어인 "아래(below)", "아래(beneath)", "하부(lower)", "위(above)", "상부(upper)" 등은 도면에 도시되어 있는 바와 같이 하나의 구성 요소와 다른 구성 요소들과의 상관관계를 용이하게 기술하기 위해 사용될 수 있다. 공간적으로 상대적인 용어는 도면에 도시되어 있는 방향에 더하여 사용시 또는 동작시 구성요소들의 서로 다른 방향을 포함하는 용어로 이해되어야 한다. 예를 들면, 도면에 도시되어 있는 구성요소를 뒤집을 경우, 다른 구성요소의 "아래(below)" 또는 "아래(beneath)"로 기술된 구성요소는 다른 구성요소의 "위(above)"에 놓여질 수 있다. 따라서, 예시적인 용어인 "아래"는 아래와 위의 방향을 모두 포함할 수 있다. 구성요소는 다른 방향으로도 배향될 수 있고, 이에 따라 공간적으로 상대적인 용어들은 배향에 따라 해석될 수 있다. The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It can be used to easily describe a component's correlation with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as "below" or "beneath" of another component may be placed "above" the other component. Can be. Thus, the exemplary term "below" can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 제1실시예에 따른 공작물 장착용 척의 분리 사시도이고, 도 1b는 본 발명의 제1실시예에 따른 공작물 장착용 척의 겹합 평면도이다. 설명의 편의를 위하여, 도 1의 사시도에서는 후술하는 척을 1개만을 도시하였으며, 도 1b의 평면도에서는 척이 3개가 결합된 상태를 도시하였다.1 is an exploded perspective view of a workpiece mounting chuck according to a first embodiment of the present invention, Figure 1b is a plan view of the overlap of the workpiece mounting chuck according to the first embodiment of the present invention. For convenience of description, only one chuck described later is illustrated in the perspective view of FIG. 1, and in the plan view of FIG. 1B, three chucks are illustrated.
본 발명에 따른 공작물 장착용 척(100)은 선반의 주축(미도시) 일정 단부에 설치되어 가공대상물을 파지한 상태로 주축과 함께 회전될 수 있다.The workpiece mounting chuck 100 according to the present invention may be installed at a predetermined end of a main shaft (not shown) of the lathe, and may be rotated together with the main shaft while holding a workpiece.
먼저, 도 1 및 도 1b를 참조하면, 본 발명의 제1실시예에 따른 공작물 장착용 척(100)은 선반의 주축 일정 단부에 설치되어 일체로 회전되는 척바디(200), 상기 척바디(200) 상에 다수개가 설치되고 척바디(200) 상에서 반경방향으로 이동하는 베이스 죠(300)를 포함한다.First, referring to Figures 1 and 1b, the workpiece mounting chuck 100 according to the first embodiment of the present invention is installed on a predetermined end of the main shaft of the shelf chuck body 200, the chuck body (rotated integrally) A plurality is installed on the 200 and includes a base jaw 300 that moves in a radial direction on the chuck body (200).
상기 척바디(200)는 본 발명에 따른 공작물 장착용 척(100)은 기본 몸체를 형성하는 것으로, 도시되지는 않았지만 범용선반(수동 선반), 수치제어 선반 또는 컴퓨터 수치제어 선반의 주축(도시되지 않음) 단부에 설치되어 주축과 일체로 회전될 수 있다.The chuck body 200 is a workpiece mounting chuck 100 according to the present invention to form a basic body, although not shown, the main axis of the universal shelf (manual lathe), numerical control lathe or computer numerical control lathe (not shown) May be installed at the end and rotated integrally with the main shaft.
또한, 상기 척바디(200)는 상기 베이스 죠(300)의 이동을 안내하는 가이드부(210)를 포함하며, 상기 가이드부(210)는 일정 간격을 유지하면서 복수개로 형성될 수 있다.In addition, the chuck body 200 may include a guide part 210 for guiding the movement of the base jaw 300, and the guide part 210 may be formed in plural numbers while maintaining a predetermined interval.
이때, 도면에서는 상기 가이드부가 3개인 것으로 도시하고 있으나, 이와는 달리, 상기 가이드부는 적어도 2개 이상일 수 있으며, 따라서, 본 발명에서 상기 가이드부의 개수를 제한하는 것은 아니다.At this time, in the drawing, but shown as three guide parts, in contrast, the guide may be at least two or more, therefore, the number of the guide portion in the present invention is not limited.
상기 가이드부(210)는 후술하는 베이스 죠(300)의 지지부(330)를 지지하면서, 상기 베이스 죠가 이동할 수 있도록 가이드하는 슬라이딩부(211)를 포함할 수 있다.The guide part 210 may include a sliding part 211 that guides the base jaw to move while supporting the support part 330 of the base jaw 300 to be described later.
상기 슬라이딩부(211)는 상기 가이드부의 제1측에 위치하는 제1슬라이딩부(211a) 및 상기 가이드부의 제2측에 위치하는 제2슬라이딩부(211b)를 포함할 수 있으며, 후술하는 베이스 죠(300)의 제1지지부(330a)는 상기 제1슬라이딩부(211a)에 접촉하고, 베이스 죠(300)의 제2지지부(330b)는 상기 제2슬라이딩부(211b)에 접촉하면서, 상기 베이스 죠가 상기 가이드부를 따라 이동할 수 있다.The sliding part 211 may include a first sliding part 211a located on the first side of the guide part and a second sliding part 211b located on the second side of the guide part. The first support portion 330a of 300 contacts the first sliding portion 211a, and the second support portion 330b of the base jaw 300 contacts the second sliding portion 211b. The jaw can move along the guide portion.
이때, 본 발명의 제1실시예에 따른 공작물 장착용 척은 상기 슬라이딩부(211)가 경사진 것을 특징으로 하며, 이에 대해서는 후술하기로 한다.At this time, the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the sliding part 211 is inclined, which will be described later.
계속해서 도 1 및 도 2를 참조하면, 상기 죠(300)는 척바디(200) 상에서 반경방향으로 이동되면서, 후술하는 탑 죠의 이동을 가능하게 하는 역할을 하는 것으로, 상기 척바디(200)의 가이드부(210)에 이동가능하게 설치될 수 있다.1 and 2, the jaw 300 moves radially on the chuck body 200 and serves to enable the movement of the top jaw to be described later. The chuck body 200 The guide portion 210 of the can be installed to be movable.
상기 베이스 죠(300)는 몸체를 이루는 몸체부(310), 상기 몸체부의 일정영역에 위치하고, 후술하는 T-너트와 체결되기 위한 체결부(320) 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부(330)를 포함한다.The base jaw 300 is located in a body portion 310 constituting the body, a predetermined region of the body portion, extending from the fastening portion 320 and the body portion for fastening to the T-nut to be described later, and supports the body portion It includes a support 330 for.
상기 지지부(330)는 상기 몸체부의 제1측으로 연장되는 제1지지부(330a) 및 상기 몸체부의 제2측으로 연장되는 제2지지부(330b)를 포함하며, 상술한 바와 같이, 베이스 죠(300)의 제1지지부(330a)는 상기 제1슬라이딩부(211a)에 접촉하고, 베이스 죠(300)의 제2지지부(330b)는 상기 제2슬라이딩부(211b)에 접촉하면서, 상기 베이스 죠가 상기 가이드부를 따라 이동할 수 있다.The support portion 330 includes a first support portion 330a extending to the first side of the body portion and a second support portion 330b extending to the second side of the body portion, and as described above, The first support part 330a contacts the first sliding part 211a, and the second support part 330b of the base jaw 300 contacts the second sliding part 211b, and the base jaw is guided. Can move along wealth.
이때, 본 발명의 제1실시예에 따른 공작물 장착용 척은 상기 지지부(330)가 경사진 것을 특징으로 하며, 이에 대해서는 후술하기로 한다.At this time, the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the support 330 is inclined, which will be described later.
한편, 도면에는 도시하지 않았으나, 상기 베이스 죠(300)는 공압 또는 유압이나 스크롤과 같은 기계적 연동구성의 개재에 의해, 상기 가이드부(210)를 따라 반경방향으로 내측 또는 외측으로 이동할 수 있으며, 이는 범용선반(수동 선반), 수치제어 선반 및 컴퓨터 수치제어 선반 등의 분야에서 이미 공지기술에 해당되는 바, 이하, 구체적인 설명은 생략하기로 한다.On the other hand, although not shown in the figure, the base jaw 300 can be moved inward or outward in the radial direction along the guide portion 210 by the interlock of the mechanical interlocking configuration, such as pneumatic or hydraulic or scroll, Since it is already known in the fields of general purpose shelves (manual lathe), numerical control lathe and computer numerical control lathe, such a detailed description will be omitted.
즉, 상기 베이스 죠(300)는 후술하는 탑 죠를 반경방향으로 내측 또는 외측으로 이송하는 것으로써, 범용선반(수동 선반), 수치제어 선반 및 컴퓨터 수치제어 선반 등의 분야에서 공지된 모든 구성을 포함할 수 있다.That is, the base jaw (300) is to convey the top jaw to be described later inward or outward in the radial direction, and all configurations known in the fields such as universal lathe (manual lathe), numerical control lathe and computer numerical control lathe It may include.
이때, 본 발명에서 상기 척바디(200)는 알루미늄 합금 재질인 것이 바람직하다.At this time, in the present invention, the chuck body 200 is preferably made of an aluminum alloy.
상기 알루미늄 합금은 알루미늄 60계열 또는 알루미늄 70계열일 수 있으며, 다만, 본 발명에서 상기 알루미늄 합금의 종류를 제한하는 것은 아니다.The aluminum alloy may be an aluminum 60 series or an aluminum 70 series, but the type of the aluminum alloy is not limited in the present invention.
알루미늄 60계열 또는 알루미늄 70계열의 일예를 표 1에 도시하였다.Table 1 shows an example of an aluminum 60 series or an aluminum 70 series.
표 1
종류(JIS) Si Fe Cu Mn Mg Cr Zn Ti Al
6003 0.37~1.0 0.6 0.1 0.8 0.8~1.5 0.35 0.2 0.1 잔량
6061 0.4~0.8 0.7 0.15~0.4 0.15 0.8~1.2 0.04~0.35 0.25 - 잔량
6063 0.2~0.6 0.35 0.1 0.1 0.45~0.9 0.1 0.1 0.1 잔량
7003 0.3 0.35 0.2 0.3 0.5~1.0 0.2 5.0~6.5 0.2 잔량
7072 0.7 0.7 0.1 0.1 0.1 - 0.8~1.3 - 잔량
7075 0.4 0.5 1.2~2.0 0.3 2.1~2.9 0.18~0.28 5.1~6.1 0.2 잔량
Table 1
Type (JIS) Si Fe Cu Mn Mg Cr Zn Ti Al
6003 0.37 ~ 1.0 0.6 0.1 0.8 0.8-1.5 0.35 0.2 0.1 Remaining amount
6061 0.4 ~ 0.8 0.7 0.15-0.4 0.15 0.8 ~ 1.2 0.04-0.35 0.25 - Remaining amount
6063 0.2-0.6 0.35 0.1 0.1 0.45-0.9 0.1 0.1 0.1 Remaining amount
7003 0.3 0.35 0.2 0.3 0.5-1.0 0.2 5.0 ~ 6.5 0.2 Remaining amount
7072 0.7 0.7 0.1 0.1 0.1 - 0.8 ~ 1.3 - Remaining amount
7075 0.4 0.5 1.2 ~ 2.0 0.3 2.1 ~ 2.9 0.18 ~ 0.28 5.1 ~ 6.1 0.2 Remaining amount
상술한 바와 같이, 일반적인 척의 대부분은 기계구조용 합금강 또는 기계구조용 탄소강으로 제작된다. 하지만, 기계구조용 합금강 및 탄소강은 비중이 7.77 정도로, 재료가 무겁기 때문에 그에 따른 장비(공작기계)도 커지게 되고, 사용 전력도 늘어나기 때문에 비효율적이라는 문제점이 있다.As mentioned above, most of the common chucks are made of mechanical structural alloy steel or mechanical structural carbon steel. However, mechanical structural alloy steel and carbon steel have a specific gravity of about 7.77, and because of the heavy material, the equipment (machine tool) accordingly becomes large, and there is a problem that it is inefficient because the power used increases.
하지만, 본 발명에서는 상기 기계구조용 합금강 및 탄소강 보다 비중이 낮은 알루미늄 합금 재질로 척바디를 구성함으로써, 경량의 척을 구성할 수 있다.However, in the present invention, the chuck body is made of an aluminum alloy material having a specific gravity lower than that of the mechanical structural alloy steel and carbon steel, thereby making it possible to construct a lightweight chuck.
따라서, 척의 무게가 감소한 만큼 그에 따른 장비(공작기계)의 크기와 설치공간을 줄일 수 있을 뿐만 아니라, 장비에 가하는 부하 및 하중이 줄어들기 때문에 사용 전력을 감소시킬 수 있고, 또한, 장비의 수명이 늘어날 수 있다.Therefore, as the weight of the chuck decreases, not only the size and installation space of the equipment (machine tool) can be reduced, but also the power and the life of the equipment can be reduced because the load and load on the equipment are reduced. Can increase.
또한, 항공기 부품 등과 같은 난삭성 특수 소재를 가공하기 위해서는 고속가공을 필요로 하는데, 고속 가공에 가장 중요한 요인은 회전하고자 하는 물체의 무게에 해당하므로, 알루미늄 합금 재질로 척바디를 구성함으로써, 고속 가공이 용이한 경량의 척을 제공할 수 있다.In addition, high-speed machining is required to process difficult-to-machine special materials such as aircraft parts, and the most important factor for high-speed machining corresponds to the weight of the object to be rotated. This easy lightweight chuck can be provided.
또한, 기계구조용 합금강 및 탄소강의 절삭성보다는 알루미늄 합금의 절삭성이 더 우수하기 때문에 척의 생산성 향상도 기대할 수 있다.In addition, since the machinability of the aluminum alloy is superior to that of the mechanical steel and carbon steel, the productivity of the chuck can be expected to be improved.
도 3은 본 발명의 제1실시예에 따른 공작물 장착용 척의 베이스 죠와 탑 죠의 일례를 도시한 분리사시도이고, 도 4는 본 발명의 제1실시예에 따른 공작물 장착용 척의 베이스 죠와 탑 죠의 일례를 도시한 결합사시도이다.3 is an exploded perspective view showing an example of the base jaw and the top jaw of the workpiece mounting chuck according to the first embodiment of the present invention, Figure 4 is a base jaw and top of the workpiece mounting chuck according to the first embodiment of the present invention It is a perspective view showing an example of a jaw.
도 3 및 도 4를 참조하면, 본 발명의 제1실시예에 따른 공작물 장착용 척은 베이스 죠(300)와 탑 죠(350)를 포함하고, 상기 베이스 죠와 상기 탑 죠를 상호 체결하기 위한 T-너트(340)를 포함할 수 있다.3 and 4, the workpiece mounting chuck according to the first embodiment of the present invention includes a base jaw 300 and the top jaw 350, for fastening the base jaw and the top jaw mutually T-nut 340 may be included.
상술한 바와 같이, 상기 베이스 죠(300)는 몸체를 이루는 몸체부(310), 상기 몸체부의 일정영역에 위치하고, 후술하는 T-너트와 체결되기 위한 체결부(320) 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부(330)를 포함하며, 상기 지지부(330)는 상기 몸체부의 제1측으로 연장되는 제1지지부(330a) 및 상기 몸체부의 제2측으로 연장되는 제2지지부(330b)를 포함한다.As described above, the base jaw 300 is located in the body portion 310 constituting the body, the predetermined portion of the body portion, extending from the fastening portion 320 and the body portion for fastening to the T-nuts to be described later And a support part 330 for supporting the body part, wherein the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part. It includes.
또한, 상기 탑 죠(350)는 몸체를 이루는 몸체부(351), 가공대상물을 파지하거나 가공대상물의 파지를 해제하는 파지부(352) 및 후술하는 T-너트와 체결되기 위한 체결홀(353)을 포함한다.In addition, the top jaw 350 is the body portion 351 constituting the body, the gripping portion 352 for gripping the object to be processed or the gripping object to be processed and the fastening hole 353 for fastening with the T-nuts to be described later It includes.
또한, 상기 T-너트(340)는 몸체를 이루는 몸체부(342), 상기 베이스 죠의 체결부와 체결되기 위한 돌기부(341a, 341b, 341) 및 상기 탑 죠의 체결홀과 체결되기 위한 체결홈(343)을 포함한다.In addition, the T-nut 340 is a body portion 342 constituting the body, protrusions (341a, 341b, 341) for fastening with the fastening portion of the base jaw and a fastening groove for fastening with the fastening hole of the top jaw (343).
즉, 상기 T-너트의 돌기부는 상기 베이스 죠의 체결부에 삽입되어 지지되고, 상기 탑죠의 체결홀과 상기 T-너트의 체결홈은 나사 또는 볼트(360)에 의해 체결됨으로써, 상기 T-너트는 탑 죠와 베이스 죠를 상호체결할 수 있다.That is, the protrusion of the T-nut is inserted into and supported by the fastening portion of the base jaw, and the fastening hole of the top jaw and the fastening groove of the T-nut are fastened by a screw or bolt 360, thereby providing the T-nut. Can engage the top and base jaws.
한편, 상술한 베이스 죠와 탑 죠는 일례를 도시한 것으로, 본 발명에서 베이스 죠와 탑 죠는 일체화된 구조일 수 있으며, 또한, 베이스 죠와 탑 죠는 T-너트를 통해 상호 체결될 수 있을 뿐만 아니라, T-너트를 구비하지 않고, 단순 체결될 수 있으며, 따라서, 본 발명에서 상기 베이스 죠와 상기 탑 죠의 구성을 제한하는 것은 아니다.Meanwhile, the above-described base jaw and top jaw show an example. In the present invention, the base jaw and the top jaw may be an integrated structure, and the base jaw and the top jaw may be fastened to each other through the T-nut. In addition, it can be simply fastened without having a T-nut, and thus does not limit the configuration of the base jaw and the top jaw in the present invention.
이하에서는, 본 발명의 제1실시예에 따른 공작물 장착용 척의 척바디의 슬라이딩부와 베이스 죠의 지지부의 체결관계에 대해 설명하기로 한다.Hereinafter, the coupling relationship of the sliding portion of the chuck body of the workpiece mounting chuck according to the first embodiment of the present invention and the supporting portion of the base jaw will be described.
도 5는 본 발명의 제1실시예에 따른 공작물 장착용 척의 척바디의 슬라이딩부와 베이스 죠의 지지부의 체결관계를 설명하기 위한 개략적인 도면이고, 도 6은 일반적인 구조의 공작물 장착용 척의 척바디의 슬라이딩부와 베이스 죠의 지지부의 체결관계를 설명하기 위한 개략적인 도면이다.FIG. 5 is a schematic view for explaining a coupling relationship between a sliding part of a chuck body of a workpiece mounting chuck and a support of a base jaw according to a first embodiment of the present invention, and FIG. 6 is a chuck body of a workpiece mounting chuck having a general structure. Figure is a schematic diagram for explaining the connection between the sliding portion of the support portion of the base jaw.
먼저, 도 5를 참조하면, 상술한 바와 같이, 본 발명의 제1실시예에 따른 공작물 장착용 척은 상기 척바디의 슬라이딩부(211)는 경사진 것을 특징으로 하며, 또한, 상기 베이스 죠의 지지부(330)는 경사진 것을 특징으로 한다.First, referring to FIG. 5, as described above, the workpiece mounting chuck according to the first embodiment of the present invention is characterized in that the sliding part 211 of the chuck body is inclined, and the base jaw of the The support 330 is inclined.
이때, 상기 슬라이딩부(211)는 지면을 기준으로 일정 각도(θ)로 경사질 수 있으며, 상기 일정 각도(θ)는 0.5°내지 10°일 수 있으며, 예를 들면, 1°, 2°, 3°, 4°... 등과 같이 일정 각도를 설정할 수 있다.In this case, the sliding part 211 may be inclined at a predetermined angle θ based on the ground, and the predetermined angle θ may be 0.5 ° to 10 °, for example, 1 °, 2 °, You can set a certain angle such as 3 °, 4 ° ...
또한, 상기 지지부(330)는 지면을 기준으로 일정 각도(θ)로 경사질 수 있으며, 상기 일정 각도(θ)는 0.5°내지 10°일 수 있으며, 예를 들면, 1°, 2°, 3°, 4°... 등과 같이 일정 각도를 설정할 수 있다.In addition, the support 330 may be inclined at a predetermined angle θ based on the ground, and the predetermined angle θ may be 0.5 ° to 10 °, for example, 1 °, 2 °, and 3 degrees. You can set a certain angle such as °, 4 ° ...
단, 상기 지면은 각도의 기준을 제시하기 위한 것으로 가상의 선일 수 있다.However, the ground may be an imaginary line to present an angle reference.
다만, 본 발명에서 상기 슬라이딩부(211)와 상기 지지부(330)의 경사각(θ)은 동일한 것을 특징으로 한다.However, in the present invention, the inclination angle θ of the sliding part 211 and the support part 330 is the same.
이를 달리 표현하자면, 도 3의 척바디(200)에서 슬라이딩부(211)의 우측 영역을 슬라이딩부의 일측 끝단, 슬라이딩부(211)의 좌측 영역을 슬라이딩부의 타측 끝단이라고 정의할 수 있고, 이때, 상기 슬라이딩부의 일측 끝단은 상기 지지부가 최초로 삽입되는 슬라이딩부 최초 삽입부일 수 있다.In other words, in the chuck body 200 of FIG. 3, the right region of the sliding part 211 may be defined as one end of the sliding part and the left region of the sliding part 211 may be defined as the other end of the sliding part. One end of the sliding part may be a sliding part first insertion part into which the support part is first inserted.
이때, 상기 일측 끝단의 지면으로부터의 높이와 상기 타측 끝단의 지면으로부터의 높이를 기준으로 하는 경우, 본 발명에서는 상기 슬라이딩부의 일측 끝단의 지면으로부터의 높이는 상기 슬리이딩부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 한다. 단, 상기 지면은 높이의 기준을 제시하기 위한 것으로 가상의 선일 수 있다.At this time, when the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the sliding portion than the height from the ground of the other end of the sliding portion It is characterized by high. However, the ground may be an imaginary line for presenting a standard of height.
또한, 도 3의 지지부(330)의 우측 영역을 지지부의 일측 끝단, 지지부(330)의 좌측 영역을 지지부의 타측 끝단이라고 정의할 수 있고, 이때, 상기 지지부의 타측 끝단은 상기 슬라이딩부에 최초로 삽입되는 지지부 최초 삽입부일 수 있다.In addition, the right region of the support 330 of FIG. 3 may be defined as one end of the support and the left region of the support 330 as the other end of the support. In this case, the other end of the support is first inserted into the sliding part. The support may be the initial insert.
이때, 상기 일측 끝단의 지면으로부터의 높이와 상기 타측 끝단의 지면으로부터의 높이를 기준으로 하는 경우, 본 발명에서는 상기 지지부의 일측 끝단의 지면으로부터의 높이는 상기 지지부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 한다. 단, 상기 지면은 높이의 기준을 제시하기 위한 것으로 가상의 선일 수 있다.At this time, when the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the support is higher than the height from the ground of the other end of the support It is characterized by. However, the ground may be an imaginary line for presenting a standard of height.
한편, 상술한 도 1 및 1b에서와 같이, 상기 지지부(330)는 상기 몸체부의 제1측으로 연장되는 제1지지부(330a) 및 상기 몸체부의 제2측으로 연장되는 제2지지부(330b)를 포함하며, 상술한 바와 같이, 베이스 죠(300)의 제1지지부(330a)는 상기 제1슬라이딩부(211a)에 접촉하고, 베이스 죠(300)의 제2지지부(330b)는 상기 제2슬라이딩부(211b)에 접촉하면서, 상기 베이스 죠가 상기 가이드부를 따라 이동할 수 있다.1 and 1B, the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part. As described above, the first support part 330a of the base jaw 300 is in contact with the first sliding part 211a, and the second support part 330b of the base jaw 300 is the second sliding part ( While contacting 211b), the base jaw can move along the guide portion.
한편, 미설명 부호 400은 슬라이딩부에서의 지지부(330)의 이동방향을 도시하고 있다.On the other hand, reference numeral 400 shows the direction of movement of the support portion 330 in the sliding portion.
또한, 상술한 도 3 및 도 4에서와 같이, 상기 베이스 죠와 체결된 탑 죠는 파지부(352)를 포함할 수 있고, 상기 베이스 죠의 이동에 따라, 상기 탑 죠도 이동하게 되고, 탑 죠의 이동에 따라 상기 파지부(352)가 이동하여, 상기 파지부(352)는 가공대상물을 파지하거나 가공대상물의 파지를 해제할 수 있다.In addition, as shown in FIGS. 3 and 4, the top jaw fastened to the base jaw may include a gripping portion 352. As the base jaw moves, the top jaw also moves. As the jaw moves, the gripping part 352 moves, and the gripping part 352 may grasp the object to be processed or release the gripping object.
이때, 본 발명에서는 상기 척바디의 슬라이딩부(211) 및 상기 베이스 죠의 지지부(330)가 경사진 것을 특징으로 하기 때문에, 상기 베이스 죠의 지지부가 상기 척 바디의 슬라이딩부를 따라 이동함에 있어서, 도 3에 도시된 바와 같은 X+Y 방향으로 이동하게 된다.At this time, in the present invention, since the sliding part 211 of the chuck body and the support part 330 of the base jaw are inclined, the support part of the base jaw moves along the sliding part of the chuck body. It moves in the X + Y direction as shown in FIG.
상기 X+Y 방향은 결국, X축 방향의 이동과 Y축 방향의 이동의 합에 해당하며, 결국, 상기 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하게 된다.The X + Y direction eventually corresponds to the sum of the movement in the X-axis direction and the movement in the Y-axis direction. Finally, when the gripping portion grips the object, the force in the X-axis direction and the force in the Y-axis direction simultaneously. Will work.
이때, 도 6을 참조하면, 일반적인 구조의 공작물 장착용 척은 척바디(20)의 슬라이딩부(20) 및 베이스 죠(30)의 지지부(33)는 경사를 포함하고 있지 않기 때문에, 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘만이 작용하게 된다.At this time, referring to Figure 6, the workpiece mounting chuck of the general structure, because the sliding portion 20 of the chuck body 20 and the support portion 33 of the base jaw 30 does not include an inclination, the grip portion is processed In holding the object, only the force in the X-axis direction acts.
한편, 미설명 부호 40은 슬라이딩부에서의 지지부(330)의 이동방향을 도시하고 있다.On the other hand, reference numeral 40 shows the moving direction of the support portion 330 in the sliding portion.
즉, 본 발명에서는 상기 척바디의 슬라이딩부(211) 및 상기 베이스 죠의 지지부(330)가 경사지도록 형성되기 때문에, 상기 베이스 죠의 지지부가 상기 척 바디의 슬라이딩부를 따라 이동함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하게 되고, 따라서, 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하므로, 보다 견고하게 가공대상물을 파지할 수 있다.That is, in the present invention, since the sliding portion 211 of the chuck body and the support portion 330 of the base jaw are formed to be inclined, the support portion of the base jaw moves along the sliding portion of the chuck body in the X-axis direction. Force in the Y-axis direction and the force in the Y-axis direction at the same time, therefore, when the gripper grips the workpiece, the force in the X-axis direction and the force in the Y-axis direction at the same time, thereby holding the workpiece more firmly. have.
또한, 가공대상물을 파지함에 있어서, 상기 가공대상물이 기준면에 정확하게 일률적으로 밀착된 상태에서 파지될 수 있다.In addition, in holding the object to be processed, the object to be processed may be gripped in a state of being closely and uniformly in contact with the reference plane.
도 7은 본 발명의 제2실시예에 따른 공작물 장착용 척의 분리 사시도이고, 도 8은 도 7의 일부를 도시한 일부 분리 사시도이다. 본 발명의 제2실시예에 따른 공작물 척은 후술할 바를 제외하고는 상기 제1실시예에 따른 공작물 척과 동일할 수 있다.7 is an exploded perspective view of a workpiece mounting chuck according to a second embodiment of the present invention, and FIG. 8 is a partially separated perspective view showing a part of FIG. 7. The workpiece chuck according to the second embodiment of the present invention may be the same as the workpiece chuck according to the first embodiment except as will be described later.
먼저, 도 7 및 도 8을 참조하면, 본 발명의 제2실시예에 따른 공작물 장착용 척(100')은 선반의 주축 일정 단부에 설치되어 일체로 회전되는 척바디(200), 상기 척바디(200) 상에 다수개가 설치되고 척바디(10) 상에서 반경방향으로 이동하는 베이스 죠(300)를 포함한다.First, referring to FIG. 7 and FIG. 8, the workpiece mounting chuck 100 ′ according to the second embodiment of the present invention is installed at a predetermined end of a main shaft of a lathe, and the chuck body 200 rotates integrally with the chuck body 200. A plurality is installed on the 200 and includes a base jaw 300 that moves in a radial direction on the chuck body (10).
또한, 상기 척바디(200)는 상기 베이스 죠(300)의 이동을 안내하는 가이드부(210)를 포함하며, 상기 가이드부(210)는 베이스 죠(300)의 지지부(330)를 지지하면서, 상기 베이스 죠가 이동할 수 있도록 가이드하는 슬라이딩부(211)를 포함할 수 있다.In addition, the chuck body 200 includes a guide portion 210 for guiding the movement of the base jaw 300, the guide portion 210 supports the support portion 330 of the base jaw 300, It may include a sliding portion 211 for guiding the base jaw to move.
상기 슬라이딩부(211)는 상기 가이드부의 제1측에 위치하는 제1슬라이딩부(211a) 및 상기 가이드부의 제2측에 위치하는 제2슬라이딩부(211b)를 포함할 수 있으며, 이는 상술한 제1실시예와 동일하므로, 이하 구체적인 설명은 생략하기로 하며, 또한, 제2실시예의 죠의 구성 역시 상술한 제1실시예와 동일하므로, 이하 구체적인 설명은 생략하기로 한다.The sliding part 211 may include a first sliding part 211a located on the first side of the guide part and a second sliding part 211b located on the second side of the guide part. Since it is the same as the first embodiment, the following detailed description will be omitted, and the configuration of the jaw of the second embodiment is also the same as the above-described first embodiment, and thus the detailed description will be omitted.
이때, 본 발명의 제2실시예에 따른 공작물 장착용 척(100')은 상기 슬라이딩부의 일정 영역에 위치하는 보강부(400)를 포함하는 것을 특징으로 한다.At this time, the workpiece mounting chuck 100 ′ according to the second embodiment of the present invention is characterized in that it comprises a reinforcing part 400 located in a predetermined region of the sliding part.
상술한 바와 같이, 본 발명에서 상기 척바디(200)는 알루미늄 합금 재질로 이루어지는 것이 바람직하다.As described above, in the present invention, the chuck body 200 is preferably made of an aluminum alloy.
상기 알루미늄 합금 재질의 척바디는 경량의 척을 구성할 수 있으나, 이러한 알루미늄 합금 재질의 경우, 강도 또는 강성이 낮아, 마모가 쉽게 일어날 수 있다.The aluminum alloy chuck body may constitute a lightweight chuck, but in the case of the aluminum alloy material, wear or tear may occur easily.
따라서, 본 발명의 제2실시예에 따른 공작물 장착용 척(100')은 상기 슬라이딩부의 일정 영역에 보강부(400)를 포함하며, 상기 보강부를 통해, 상기 슬라이딩부의 강도 또는 강성을 보강할 수 있다.Therefore, the workpiece mounting chuck 100 ′ according to the second embodiment of the present invention includes a reinforcement part 400 in a predetermined region of the sliding part, and through the reinforcement part, may reinforce the strength or rigidity of the sliding part. have.
즉, 상기 슬라이딩부(211)는 베이스 죠의 이동에 있어서, 척바디 부분 중 하중이 가장 크게 작용하는 부분으로, 상기 보강부를 포함함으로써, 베이스 죠의 이동에 따라 작용되는 하중을 견딜 수 있는 것이다.That is, the sliding portion 211 is a portion in which the load acts the most among the chuck body portions in the movement of the base jaw, and by including the reinforcement portion, it is able to withstand the load acting according to the movement of the base jaw.
이때, 상기 보강부(400)는 강도 또는 강성의 보강을 위해, 일반적인 척의 재질인 스테인리스강, 기계구조용 합금강 또는 기계구조용 탄소강 재질일 수 있다.In this case, the reinforcement unit 400 may be made of stainless steel, mechanical structural alloy steel, or mechanical structural carbon steel, which is a common chuck material for reinforcing strength or rigidity.
이하에서는 도 9 내지 도 10을 통하여, 본 발명에 따른 보강부를 설명하기로 한다.Hereinafter, the reinforcement unit according to the present invention will be described with reference to FIGS. 9 to 10.
도 9는 본 발명의 공작물 장착용 척의 보강부의 일례를 도시한 사시도이고, 도 10은 본 발명의 공작물 장착용 척의 보강부의 일례를 도시한 정면도이다. 9 is a perspective view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention, and FIG. 10 is a front view showing an example of the reinforcement part of the workpiece mounting chuck of the present invention.
도 9 및 도 10을 참조하면, 본 발명의 공작물 장착용 척의 보강부(400)는 제1보강부(410, 430) 및 제2보강부(420)를 포함할 수 있으며, 상기 제1보강부 및 상기 제2부강부는 각각 내측면 및 외측면을 포함할 수 있다.9 and 10, the reinforcement part 400 of the workpiece mounting chuck of the present invention may include first reinforcement parts 410 and 430 and a second reinforcement part 420, and the first reinforcement part. And the second steel part may include an inner side surface and an outer side surface, respectively.
상기 제1보강부(410, 430)는 수평보강부일 수 있으며, 상기 제2보강부(420)는 수직보강부일 수 있으며, 다만, 본 발명에서 사용되는 수평 및 수직의 용어는 설명의 편의를 위한 것으로, 본 발명의 범위가 용어의 의미에 제한되는 것은 아니다.The first reinforcement parts 410 and 430 may be horizontal reinforcement parts, and the second reinforcement parts 420 may be vertical reinforcement parts. However, horizontal and vertical terms used in the present invention are for convenience of description. The scope of the present invention is not limited to the meaning of the term.
보다 구체적으로, 상기 제1보강부는 제1수평보강부(410) 및 제2수평보강부(430)를 포함할 수 있으며, 상기 제1수평보강부(410)는 상기 제2보강부, 즉, 수직보강부(420)의 일측과 연결되고, 상기 제2수평보강부(430)는 상기 수직보강부(420)의 타측과 연결될 수 있다.More specifically, the first reinforcing part may include a first horizontal reinforcing part 410 and a second horizontal reinforcing part 430, and the first horizontal reinforcing part 410 is the second reinforcing part, that is, It is connected to one side of the vertical reinforcing portion 420, the second horizontal reinforcing portion 430 may be connected to the other side of the vertical reinforcing portion 420.
즉, 상호 연속적으로 연결된 제1수평보강부, 수직보강부 및 제2수평보강부의 구조에 따라, 본 발명에서 상기 보강부는 대략 "ㄷ" 자 형태로 구성될 수 있다.That is, according to the structures of the first horizontal reinforcement portion, the vertical reinforcement portion and the second horizontal reinforcement portion connected to each other continuously, the reinforcement portion in the present invention may be formed in a substantially "c" shape.
이때, 본 발명에서 상기 보강부를 대략 "ㄷ" 자 형태로 구성하는 것은, 상술한 바와 같은, 베이스 죠의 지지부와의 접촉을 고려한 것이다.At this time, the configuration of the reinforcing portion in the shape of a substantially "c" in the present invention, considering the contact with the support of the base jaw, as described above.
보다 구체적으로, 상기 지지부(330)는 상기 몸체부의 제1측으로 연장되는 제1지지부(330a) 및 상기 몸체부의 제2측으로 연장되는 제2지지부(330b)를 포함하며, 베이스 죠(300)의 제1지지부(330a)는 상기 제1슬라이딩부(211a)에 접촉하고, 베이스 죠(300)의 제2지지부(330b)는 상기 제2슬라이딩부(211b)에 접촉하면서, 상기 베이스 죠가 상기 가이드부를 따라 이동할 수 있다.More specifically, the support part 330 includes a first support part 330a extending to the first side of the body part and a second support part 330b extending to the second side of the body part, and The first support part 330a is in contact with the first sliding part 211a, and the second support part 330b of the base jaw 300 is in contact with the second sliding part 211b, and the base jaw is in contact with the guide part. Can move along.
이때, 지지부가 슬라이딩부에 접촉함에 있어서, 지지부의 하면, 상면 및 측면의 제3점에서 접촉하기 때문에, 이와 같은 제3점에서의 접촉에 따른 마모를 보강하기 위해 상기 보강부를 대략 "ㄷ" 자 형태로 구성할 수 있다.At this time, when the support portion contacts the sliding portion, the support portion contacts at the third point of the lower surface, the upper surface and the side surface thereof, so that the reinforcement portion is approximately "c" in order to reinforce the wear caused by the contact at the third point. It can be configured in the form.
따라서, 본 발명에서 상기 보강부의 형상은 상기 지지부와 상기 슬라이딩부의 접촉 상태를 고려하여 그 형상을 임의로 설계할 수 있는 것으로, 따라서, 본 발명에서 상기 보강부의 형상을 제한하는 것은 아니다.Therefore, in the present invention, the shape of the reinforcement part may be arbitrarily designed in consideration of the contact state between the support part and the sliding part, and thus, the shape of the reinforcement part is not limited in the present invention.
이때, 도 10을 참조하면, 상술한 도 5에서와 동일한 이유로, 본 발명의 제2실시예에 따른 상기 보강부(400)는 경사진 것을 특징으로 한다.In this case, referring to FIG. 10, for the same reason as in FIG. 5, the reinforcing part 400 according to the second exemplary embodiment of the present invention is inclined.
보다 구체적으로, 상기 보강부(400)의 수평보강부(410, 430)는 지면을 기준으로 일정 각도(θ)로 경사질 수 있으며, 상기 일정 각도(θ)는 0.5°내지 10°일 수 있으며, 예를 들면, 1°, 2°, 3°, 4°... 등과 같이 일정 각도를 설정할 수 있다.More specifically, the horizontal reinforcing parts 410 and 430 of the reinforcing part 400 may be inclined at a predetermined angle θ based on the ground, and the predetermined angle θ may be 0.5 ° to 10 °. For example, it is possible to set an angle such as 1 °, 2 °, 3 °, 4 ° ...
단, 상기 지면은 각도의 기준을 제시하기 위한 것으로 가상의 선일 수 있다.However, the ground may be an imaginary line to present an angle reference.
다만, 본 발명에서 상기 보강부의 수평보강부(410, 430), 상기 슬라이딩부(211)와 상기 지지부(330)의 경사각(θ)은 동일한 것을 특징으로 한다.However, in the present invention, the inclination angles θ of the horizontal reinforcing parts 410 and 430, the sliding part 211, and the support part 330 are the same.
이를 달리 표현하자면, 도 10의 보강부(400)에서 보강부의 우측 영역을 보강부의 일측 끝단, 보강부의 좌측 영역을 보강부의 타측 끝단이라고 정의할 수 있고, 이때, 상기 보강부의 일측 끝단은 상기 지지부가 최초로 삽입되는 보강부 최초 삽입부일 수 있다.In other words, in the reinforcement part 400 of FIG. 10, the right end of the reinforcement part may be defined as one end of the reinforcement part, and the left end of the reinforcement part may be defined as the other end of the reinforcement part. The reinforcement to be inserted first may be the first insertion.
이때, 상기 일측 끝단의 지면으로부터의 높이와 상기 타측 끝단의 지면으로부터의 높이를 기준으로 하는 경우, 본 발명에서는 상기 보강부의 일측 끝단의 지면으로부터의 높이는 상기 보강부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 한다. 단, 상기 지면은 높이의 기준을 제시하기 위한 것으로 가상의 선일 수 있다.At this time, when the height from the ground of the one end and the height from the ground of the other end as a reference, in the present invention the height from the ground of the one end of the reinforcement portion is higher than the height from the ground of the other end of the reinforcement portion It is characterized by. However, the ground may be an imaginary line for presenting a standard of height.
즉, 본 발명에서는 상기 척바디의 보강부(400) 및 상기 베이스 죠의 지지부(330)가 경사지도록 형성되기 때문에, 상기 베이스 죠의 지지부가 상기 척 바디의 보강부를 따라 이동함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하게 되고, 따라서, 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하므로, 보다 견고하게 가공대상물을 파지할 수 있다.That is, in the present invention, since the reinforcement part 400 of the chuck body and the support part 330 of the base jaw are formed to be inclined, the support part of the base jaw moves along the reinforcement part of the chuck body in the X-axis direction. Force in the Y-axis direction and the force in the Y-axis direction at the same time, therefore, when the gripper grips the workpiece, the force in the X-axis direction and the force in the Y-axis direction at the same time, thereby holding the workpiece more firmly. have.
한편, 상기 제1수평보강부(410)는 제1수평보강부 내측면(410a) 및 제1수평보강부 외측면(410b)를 포함하고, 제2수평보강부(430)는 제2수평보강부 내측면(430a) 및 제2수평보강부 외측면(430b)를 포함하며, 수직보강부(420)는 수직보강부 내측면(420a) 및 수직보강부 외측면(420b)를 포함한다.Meanwhile, the first horizontal reinforcement part 410 includes a first horizontal reinforcement part inner side surface 410a and a first horizontal reinforcement part outer side surface 410b, and the second horizontal reinforcement part 430 is a second horizontal reinforcement part. A second inner side surface 430a and a second horizontal reinforcing portion outer surface 430b, and the vertical reinforcing portion 420 includes a vertical reinforcing portion inner surface 420a and a vertical reinforcing portion outer surface 420b.
이때, 도면에는 도시하지 않았으나, 각각의 외측면, 즉, 제1수평보강부 외측면(410b), 제2수평보강부 외측면(430b) 및 수직보강부 외측면(420b)은 슬라이딩부와 보강부의 견고한 결합을 위해 요(凹)부 및 철(凸)부를 포함할 수 있다.In this case, although not shown in the drawings, each of the outer surface, that is, the first horizontal reinforcing portion outer surface 410b, the second horizontal reinforcing portion outer surface 430b and the vertical reinforcing portion outer surface 420b are sliding parts and reinforcement. It may include concave and convex parts for a firm coupling of the parts.
즉, 상기 요(凹)부 및 상기 철(凸)부에 의해 슬라이딩부와의 접촉면적이 증가하고, 증가된 접촉면적에 따라, 슬라이딩부와 보강부의 견고한 결합을 유지할 수 있다.That is, the contact area with the sliding part is increased by the yaw part and the iron part, and according to the increased contact area, it is possible to maintain a firm coupling between the sliding part and the reinforcing part.
이상과 첨부된 도면을 참조하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.
상기한 바와 같은 본 발명에 따르면, 기계구조용 합금강 및 탄소강 보다 비중이 낮은 알루미늄 합금 재질로 척바디를 구성함으로써, 경량의 척을 구성할 수 있다.According to the present invention as described above, by constructing the chuck body made of aluminum alloy material having a specific gravity lower than the mechanical structural alloy steel and carbon steel, it is possible to configure a lightweight chuck.
따라서, 척의 무게가 감소한 만큼 그에 따른 장비(공작기계)의 크기와 설치공간을 줄일 수 있을 뿐만 아니라, 장비에 가하는 부하 및 하중이 줄어들기 때문에 사용 전력을 감소시킬 수 있고, 또한, 장비의 수명이 늘어날 수 있다.Therefore, as the weight of the chuck decreases, not only the size and installation space of the equipment (machine tool) can be reduced, but also the power and the life of the equipment can be reduced because the load and load on the equipment are reduced. Can increase.
또한, 본 발명에서는 슬라이딩부의 일정 영역에 위치하는 보강부를 포함함으로써, 상기 보강부를 통해, 상기 슬라이딩부의 강도 또는 강성을 보강할 수 있다.In addition, in the present invention, by including a reinforcing part located in a predetermined region of the sliding part, the strength or rigidity of the sliding part can be reinforced through the reinforcing part.
또한, 본 발명에서는 상기 척바디의 슬라이딩부 및 상기 베이스 죠의 지지부가 경사지도록 형성되기 때문에, 상기 베이스 죠의 지지부가 상기 척 바디의 슬라이딩부를 따라 이동함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하게 되고, 따라서, 파지부가 가공대상물을 파지함에 있어서, X축 방향의 힘과 Y축 방향의 힘이 동시에 작용하므로, 보다 견고하게 가공대상물을 파지할 수 있다.Further, in the present invention, since the sliding portion of the chuck body and the support portion of the base jaw are formed to be inclined, the support portion of the base jaw moves along the sliding portion of the chuck body. The force of acts at the same time, and therefore, the grip part grips the object, so that the force in the X-axis direction and the force in the Y-axis direction act simultaneously, so that the object can be gripped more firmly.
100 : 공작물 장착용 척 200 : 척바디100: workpiece mounting chuck 200: chuck body
210 : 가이드부 211 : 슬라이딩부210: guide portion 211: sliding portion
300 : 베이스 죠 310 : 몸체부300: base jaw 310: body
320 : 결합부 330 : 지지부320: coupling portion 330: support portion
400 : 보강부 410 : 제1수평보강부400: reinforcement 410: first horizontal reinforcement
420 : 수직보강부 430 : 제2수평보강부420: vertical reinforcement unit 430: second horizontal reinforcement unit

Claims (8)

  1. 척바디; 및 상기 척바디 상에 설치되는 베이스 죠를 포함하는 공작물 장착용 척에 있어서,Chuck body; And a base jaw installed on the chuck body,
    상기 척바디는 상기 베이스 죠의 이동을 안내하는 가이드부를 포함하고, 상기 가이드부는 상기 베이스 죠가 이동할 수 있도록 가이드하는 슬라이딩부를 포함하며,The chuck body includes a guide portion for guiding the movement of the base jaw, the guide portion includes a sliding portion for guiding the base jaw to move,
    상기 슬라이딩부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척.The sliding part chuck for the workpiece mounting, characterized in that inclined at a predetermined angle relative to the ground.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 베이스 죠는 몸체를 이루는 몸체부 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부를 포함하며,The base jaw includes a body portion constituting a body and a support portion extending from the body portion to support the body portion,
    상기 지지부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척.The support portion of the workpiece mounting chuck, characterized in that inclined at a predetermined angle relative to the ground.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 슬라이딩부와 상기 지지부의 일정 각도의 경사각은 동일한 것을 특징으로 하는 공작물 장착용 척.The inclined angle of the sliding portion and the predetermined angle of the support portion is the workpiece mounting chuck, characterized in that the same.
  4. 제 2 항에 있어서,The method of claim 2,
    상기 슬라이딩부는 일측 끝단 및 타측 끝단을 포함하고, The sliding part includes one end and the other end,
    상기 슬라이딩부의 일측 끝단은 상기 지지부가 최초로 삽입되는 슬라이딩부 최초 삽입부이며,One end of the sliding part is a sliding part first insertion part into which the support part is first inserted,
    상기 슬라이딩부의 일측 끝단의 지면으로부터의 높이는 상기 슬라이딩부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 하는 공작물 장착용 척.The height from the ground of the one end of the sliding portion is a workpiece mounting chuck, characterized in that higher than the height from the ground of the other end of the sliding portion.
  5. 제 4 항에 있어서,The method of claim 4, wherein
    상기 지지부는 일측 끝단 및 타측 끝단을 포함하고, The support portion includes one end and the other end,
    상기 지지부의 타측 끝단은 상기 슬라이딩부에 최초로 삽입되는 지지부 최초 삽입부이며,The other end of the support is the first insertion portion of the support first inserted into the sliding portion,
    상기 지지부의 일측 끝단의 지면으로부터의 높이는 상기 지지부의 타측 끝단의 지면으로부터의 높이보다 높은 것을 특징으로 하는 공작물 장착용 척.The height from the ground of the one end of the support is higher than the height from the ground of the other end of the support.
  6. 제 1 항에 있어서,The method of claim 1,
    상기 슬라이딩부의 일정 영역에 위치하는 보강부를 더 포함하고,Further comprising a reinforcing part located in a predetermined region of the sliding part,
    상기 보강부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척.The reinforcing part of the workpiece mounting chuck, characterized in that inclined at a predetermined angle relative to the ground.
  7. 제 6 항에 있어서,The method of claim 6,
    상기 보강부는 제1보강부 및 제2보강부를 포함하고,The reinforcement part includes a first reinforcement part and a second reinforcement part,
    상기 제1보강부는 제1수평보강부 및 제2수평보강부를 포함하며, 상기 제2보강부는 수직보강부이며,The first reinforcing part includes a first horizontal reinforcing part and a second horizontal reinforcing part, and the second reinforcing part is a vertical reinforcing part,
    상기 제1수평보강부는 상기 수직보강부의 일측과 연결되고, 상기 제2수평보강부는 상기 수직보강부의 타측과 연결되며,The first horizontal reinforcing part is connected to one side of the vertical reinforcing part, the second horizontal reinforcing part is connected to the other side of the vertical reinforcing part,
    상기 제1수평보강부 및 상기 제2수평보강부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하는 공작물 장착용 척.The first horizontal reinforcement portion and the second horizontal reinforcement portion of the workpiece mounting chuck, characterized in that inclined at a predetermined angle relative to the ground.
  8. 제 7 항에 있어서,The method of claim 7, wherein
    상기 베이스 죠는 몸체를 이루는 몸체부 및 상기 몸체부로부터 연장되어, 상기 몸체부를 지지하기 위한 지지부를 포함하며, 상기 지지부는 지면을 기준으로 일정 각도로 경사진 것을 특징으로 하고,The base jaw extends from the body portion and the body portion constituting the body, and includes a support for supporting the body portion, characterized in that the support portion is inclined at a predetermined angle relative to the ground,
    상기 제1수평보강부 및 상기 제2수평보강부와 상기 지지부의 일정 각도의 경사각은 동일한 것을 특징으로 하는 공작물 장착용 척.The first horizontal reinforcement portion and the second horizontal reinforcement portion and the inclination angle of a predetermined angle of the support portion is a workpiece mounting chuck, characterized in that the same.
PCT/KR2015/000012 2014-01-03 2015-01-02 Chuck for mounting workpiece WO2015102424A1 (en)

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KR1020140000745A KR101443145B1 (en) 2014-01-03 2014-01-03 A Chuck for clamping machine work
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Publication number Priority date Publication date Assignee Title
KR101534261B1 (en) * 2015-04-07 2015-07-07 주식회사 금창아트텍 Jaw device for lathe chuck
KR101876002B1 (en) * 2015-11-13 2018-07-06 현대자동차주식회사 Power Chuck For Lathe
KR101980241B1 (en) 2017-12-08 2019-05-23 박은표 Workpiece fixing apparatus for lathe chuck

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JPH03154730A (en) * 1989-11-10 1991-07-02 Toshiba Corp X-y table
KR20010106217A (en) * 2000-05-16 2001-11-29 시다 요이치로 Work chucking apparatus and soft jaw for the same
KR101248997B1 (en) * 2012-08-13 2013-04-02 칸워크홀딩 주식회사 A chuck for clamping machine work

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JPS51109482U (en) * 1975-02-28 1976-09-03
JP3154730U (en) * 2009-08-10 2009-10-22 興源機械工業有限公司 Shielding tool used in heating device for cutting tool holder

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US4560179A (en) * 1981-10-20 1985-12-24 Paul Forkardt Gmbh & Co. Kg Chuck
JPH03154730A (en) * 1989-11-10 1991-07-02 Toshiba Corp X-y table
KR20010106217A (en) * 2000-05-16 2001-11-29 시다 요이치로 Work chucking apparatus and soft jaw for the same
KR101248997B1 (en) * 2012-08-13 2013-04-02 칸워크홀딩 주식회사 A chuck for clamping machine work

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