WO2023084731A1 - Dispositif de serrage de pièce à travailler - Google Patents

Dispositif de serrage de pièce à travailler Download PDF

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Publication number
WO2023084731A1
WO2023084731A1 PCT/JP2021/041698 JP2021041698W WO2023084731A1 WO 2023084731 A1 WO2023084731 A1 WO 2023084731A1 JP 2021041698 W JP2021041698 W JP 2021041698W WO 2023084731 A1 WO2023084731 A1 WO 2023084731A1
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WO
WIPO (PCT)
Prior art keywords
work
clamping
positioning
clamping device
work member
Prior art date
Application number
PCT/JP2021/041698
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English (en)
Japanese (ja)
Inventor
光平 松本
Original Assignee
株式会社Braing
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 株式会社Braing filed Critical 株式会社Braing
Priority to PCT/JP2021/041698 priority Critical patent/WO2023084731A1/fr
Priority to JP2022519548A priority patent/JP7171006B1/ja
Publication of WO2023084731A1 publication Critical patent/WO2023084731A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/04—Clamps with pivoted jaws

Definitions

  • the present invention relates to a work clamping device that positions a work member.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a novel work clamping device that can easily and accurately position a work member.
  • the inventors of the present invention have found that by using a positioning device equipped with a four-bar parallel link mechanism in which two connecting links can be brought into and out of contact with each other, various work members can be moved from one to the other.
  • the present invention has been completed by discovering that the center can be aligned and positioning can be performed easily and accurately.
  • a work clamping device comprising a positioning device for detachably holding and positioning a work member, and a base for mounting the positioning device,
  • the positioning device is two supporting rotary shafts erected at a predetermined interval on the base; a four-bar parallel link mechanism that forms a parallelogram with two rotating links and two connecting links,
  • the four-bar parallel link mechanism is The two rotating links are rotatably supported by the two support rotating shafts, and the two connecting links are configured to move toward and away from each other by rotating the two rotating links
  • a work clamping device further comprising a work clamping means interlocking with the operation of the connecting link and clamping the work member when the two connecting links approach each other.
  • the workpiece clamping device according to [1], wherein a plurality of the positioning devices are provided.
  • the work clamping device according to [1] or [2] above, wherein the plurality of positioning devices are arranged in a straight line.
  • the positioning device comprises a first positioning device and a second positioning device, The first and second positioning devices are A first horizontal work member held by the work holding means of the first positioning device and a second horizontal work member held by the work holding means of the second positioning device are arranged to contact each other at a predetermined angle.
  • the workpiece clamping device according to any one of [1] to [3], characterized in that [5] The workpiece clamping device according to [4], wherein the predetermined angle is 90°.
  • a vertical direction fixing device for abutting a vertical work member in an upright state against the first horizontal work member and the second horizontal work member that are in contact with each other at a predetermined angle.
  • the vertical fixing device comprises an insertion section into which the vertical work member can be inserted in an upright state, and fixing means for fixing the vertical work member inserted into the insertion section.
  • a workpiece to be joined wherein a plurality of workpiece members are positioned using the workpiece clamping device according to any one of the above [1] to [9], and the plurality of workpiece members are joined in the positioned state.
  • the manufacturing method of the member [11] A method for manufacturing a joined work member according to [10], wherein a plurality of work clamping devices are used.
  • the workpiece clamping device of the present invention can easily and accurately position workpiece members.
  • FIG. 1 is a perspective view of a work clamping device according to a first embodiment of the present invention
  • FIG. FIG. 4 is an explanatory view showing how to use the work clamping device according to the first embodiment of the present invention, and showing a state before positioning a work member
  • FIG. 4 is an explanatory view showing how to use the work clamping device according to the first embodiment of the present invention, and showing a state in which a work member is positioned
  • FIG. 2B is a cross-sectional view taken along the line AA in FIG. 2B;
  • FIG. 6 is an explanatory diagram showing how to use the work clamping device according to the second embodiment of the present invention, and is a diagram showing a state in which a small-diameter cylindrical work member and a medium-diameter cylindrical work member are respectively positioned.
  • FIG. 10 is an explanatory view showing how to use the work clamping device according to the second embodiment of the present invention, and is a view showing a state in which a medium-diameter cylindrical work member to which a small-diameter cylindrical work member is joined and a large-diameter cylindrical work member are respectively positioned; be.
  • FIG. 10 is an explanatory view showing how to use the work clamping device according to the second embodiment of the present invention, and is a view showing a state in which a medium-diameter cylindrical work member to which a small-diameter cylindrical work member is joined and a large-diameter cylindrical work member are respectively positioned; be.
  • FIG. 10 is an explanatory view showing how to use the work clamping device according to the second embodiment of the present invention, and is a view showing a state in which three cylindrical work members are joined;
  • FIG. 5B is a cross-sectional view of the positioning device as seen from line BB in FIG. 5A;
  • FIG. 5 is an enlarged explanatory view of a positioning device for a work clamping device according to a second embodiment of the present invention;
  • FIG. 8 is a plan view of a positioning device for a work clamping device according to a third embodiment of the present invention;
  • FIG. 10 is an explanatory diagram showing how to use the work clamping device according to the third embodiment of the present invention, and is a diagram showing a state in which the first and second horizontal work members are positioned;
  • FIG. 11 is a perspective view of a work clamping device according to a fourth embodiment of the present invention
  • FIG. 20 is an explanatory diagram showing how to use the work clamping device according to the fourth embodiment of the present invention, and is a diagram showing a state in which the first and second horizontal work members are positioned
  • FIG. 10 is an explanatory diagram showing how to use the work clamping device according to the fourth embodiment of the present invention, and is a diagram showing a state in which the first and second horizontal work members and the vertical work members are positioned and joined.
  • FIG. 20 is an explanatory diagram showing how to use the work clamping device according to the fourth embodiment of the present invention, and is a diagram showing a state in which the first and second horizontal work members and the vertical work members are positioned and joined.
  • FIG. 11 is an explanatory view showing how to use the work clamping device according to the fourth embodiment of the present invention, showing a state in which a three-dimensional structure (joined work member) obtained by joining first and second horizontal work members and vertical work members is removed; It is a diagram.
  • FIG. 11 is a perspective view showing a state in which four work clamping devices according to a fourth embodiment of the present invention are arranged; It is a perspective view of a work clamping device according to a fifth embodiment of the present invention.
  • FIG. 12B is a cross-sectional view of the second positioning device seen from line CC in FIG. 12A;
  • FIG. 12 is a cross-sectional view of a clamping recess of another aspect of the work clamping device according to the fifth embodiment of the present invention.
  • FIG. 11 is an enlarged perspective view of a work clamping device according to a sixth embodiment of the present invention
  • FIG. 11 is an enlarged side view of a work clamping device according to a sixth embodiment of the present invention
  • FIG. 11 is a perspective view showing a state in which four work clamping devices according to a sixth embodiment of the present invention are arranged
  • FIG. 20 is a perspective view showing a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged, and a diagram showing a state in which a plurality of work members are positioned
  • FIG. 20 is a perspective view showing a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged, and is a drawing showing a state in which a stand member is provided.
  • FIG. 20 is a perspective view showing a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged, and is a drawing showing a state in which a stand member is provided.
  • FIG. 20 is a perspective view showing another aspect of a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged, and is a diagram showing a state in which connecting rods for adjusting the diagonal length are provided.
  • FIG. 12 is a perspective view of a fixture for fixing the connection rails of the work clamp devices in another mode in which four work clamp devices according to the sixth embodiment of the present invention are arranged;
  • a work clamping device of the present invention is a work clamping device comprising a positioning device that detachably clamps and positions a work member, and a base on which the positioning device is attached. and a four-bar parallel link mechanism that forms a parallelogram with two pivot links and two connecting links.
  • the links are rotatably supported by the two supporting rotation shafts, and the two connecting links are configured to be able to contact and separate from each other by the rotation of the two rotating links. It is characterized in that it comprises work clamping means for clamping the work member when the connecting links are close to each other.
  • Positioning in the present invention means holding a work member in a predetermined position.
  • the work clamping device of the present invention By using the work clamping device of the present invention, various work members can be easily positioned by aligning their centers. For example, work pieces of different sizes can be positioned with their centers aligned. Moreover, since the work clamping device of the present invention has a simple structure, it can be easily manufactured and mass-produced. In addition, since pre-work preparation such as fabrication of a jig suitable for a workpiece member is not required, the number of processes is small and the work time is short. In addition, since product variations are less likely to occur, the quality of the product can be guaranteed regardless of the skill of the operator. Moreover, since the work member can be released by releasing the clamping of the work member, the work member can be easily removed without interfering with the device. In addition, it can be installed anywhere, such as on a table or on the floor.
  • the work clamping device of the present invention can be used for welding, electric discharge machining, laser machining, assembly machining, and other machining operations that require accurate positioning of workpiece members, as well as installation operations such as inspection tools that require positioning. can be done.
  • the shape of the work member applicable to the work clamping device of the present invention is preferably a long member, and various cross-sectional shapes such as a round shape, a flat plate shape, a polygonal shape, an L shape, and a V shape can be used. can be mentioned.
  • the material is not particularly limited, and examples thereof include metal materials such as steel, copper, and aluminum, plastic materials, and wood.
  • the base mounts the positioning device.
  • the base does not need to be fixed to the floor or the like, and can be placed or attached on a table or the like to perform work anywhere, for example. Therefore, unlike the conventional can manufacturing work, it is not necessary to work on a surface plate provided on the floor of the factory, and the burden on the worker can be reduced.
  • the base may be provided with fixing means for fixing to the installation surface, horizontal adjustment means such as a level or an adjuster, and the like.
  • the positioning device has two supporting rotary shafts erected at a predetermined interval on a base, and a four-bar parallel link mechanism that forms a parallelogram with two rotating links and two connecting links. .
  • the support rotary shaft is two shaft members erected on the base with a predetermined interval, and supports the four-bar parallel link mechanism.
  • the interval between the support rotating shafts can be appropriately set according to the length of the work member to be applied, and is, for example, 50 to 1500 mm, preferably 100 to 1000 mm, more preferably 120 to 800 mm, and 140 to 400 mm. More preferably, 160 to 200 mm is particularly preferable.
  • the four-bar parallel link mechanism is arranged so that the pivot links and the connecting links face each other and are connected at both sides to form a parallelogram.
  • two rotating links are rotatably supported on supporting rotating shafts, and the two connecting links move toward and away from each other by rotating the two rotating links. That is, in the four-bar parallel link mechanism, the rotation of the two rotation links causes the two connection links to approach each other (the parallelogram is closed) centered on the straight line connecting the two supporting rotation shafts, or the two connection links are closed. are separated from each other (a parallelogram is opened) about a straight line connecting the two support rotation axes.
  • the four-bar parallel link mechanism has a workpiece clamping means that interlocks with the operation of the connecting link, it is possible to position the workpiece by aligning the center of the workpiece (center line of the workpiece in the longitudinal direction). .
  • the center of the work member is aligned and positioned, it is possible to position work members having different cross-sectional areas.
  • the rotation link is usually supported at its central portion by the support rotation shaft, and the straight line connecting the two support rotation shafts coincides with the center of the work member.
  • a connecting link may be provided below the pivot link, but a preferred form is one in which the connecting link is provided above the pivot link. It is preferable that it is installed on two rotating links that are spaced apart.
  • the length of the rotating link and the connecting link is not particularly limited as long as it forms a parallelogram and can hold the work member, and can be appropriately set according to the size of the work member.
  • the length of the connecting link is usually set to a length corresponding to the interval between the support rotating shafts, and the length of the rotating link is usually set shorter than the length of the connecting link.
  • the work clamping means is a member that interlocks with the operation of the connecting link, and clamps the work member when the two connecting links approach each other.
  • the work clamping means may be, for example, formed integrally with the connecting link such that a part of the connecting link functions as the work clamping means, or may be formed separately from the connecting link.
  • Examples of the workpiece clamping means formed integrally with the connecting link include the entire inner portion of the connecting link and a convex portion formed integrally with the inner portion of the connecting link.
  • Examples of the workpiece clamping means formed separately from the connecting link include a projecting member provided inside the connecting link, a columnar member, a prismatic member, and a block member provided above the connecting link. be able to.
  • the work clamping means is formed separately from the connecting link, it is preferable that the work clamping means is detachable from the connecting link. As a result, it is possible to replace it due to wear and change it appropriately according to the shape of the work member.
  • the work clamping means preferably has a clamping recess (notch) corresponding to the outer shape of the work member on the clamping surface for clamping the work member.
  • a clamping recess notch
  • the work member can be securely clamped so as not to be displaced.
  • a plurality of holding recesses may be formed in the holding surface in the vertical direction (longitudinal direction). Thereby, a plurality of work members can be positioned simultaneously.
  • corresponding to the outer shape of the work member includes corresponding to a part of the outer shape of the work member.
  • the work clamp device has a plurality of positioning devices. As a result, it is possible to easily and accurately position a plurality of work members, and to join the work members together after the positioning.
  • a mode in which the work clamping device is provided with a plurality of positioning devices a mode in which the plurality of positioning devices are arranged in a straight line (see FIG. 3), a mode in which the plurality of positioning devices are arranged at a predetermined angle (greater than 0° and less than 180°) Arranged aspects (see FIG. 7), and aspects in which one or more positioning devices are arranged in a horizontal plane and a positioning device is further arranged in a vertical direction can be mentioned.
  • the positioning device comprises a first positioning device and a second positioning device
  • the first and second positioning devices are composed of a first horizontal work member clamped by the work clamping means of the first positioning device and a second horizontal work member.
  • the second horizontal workpiece clamped by the workpiece clamping means of the positioning device is arranged to abut at a predetermined angle. That is, the first and second positioning devices are arranged on the same plane with the straight line connecting the two supporting rotation shafts of the first positioning device in the X direction and the straight line connecting the two supporting rotation shafts of the second positioning device in the Y direction.
  • the angle at which XY intersects becomes a predetermined angle. This predetermined angle is greater than 0° and less than 180°, preferably 60 to 120°, and particularly preferably 90° (perpendicular).
  • the positioning device when the positioning device includes first to third positioning devices, the three positioning devices may be arranged on the horizontal plane, the first and second positioning devices may be arranged on the horizontal plane, and the third positioning device may be arranged on the horizontal plane.
  • the third positioning device causes the upright vertical work member to abut on the first horizontal work member and the second horizontal work member that are in contact with each other at a predetermined angle by the first and second positioning devices. be able to.
  • the first to third positioning devices have a straight line connecting the two support rotation shafts of the first positioning device as the X direction, a straight line connecting the two support rotation shafts of the second positioning device as the Y direction, and a third positioning device.
  • the first and second positioning devices are composed of a straight line connecting the two supporting rotation axes of the first positioning device and a second positioning device.
  • the straight line connecting the two supporting rotation axes of the device is arranged at the predetermined angle, and the third positioning device is arranged so that the straight line connecting the two supporting rotation axes of the third positioning device is orthogonal to the XY plane.
  • the third positioning device has the same configuration as the first and second positioning devices.
  • a four-bar parallel link mechanism forming a parallelogram with a dynamic link and two connecting links, the four-bar parallel link mechanism being rotatably supported by two rotation links on two support rotation shafts.
  • the two connecting links are arranged so that they can come into contact with each other and separate from each other by the rotation of the two rotating links, and a workpiece clamping means interlocking with the operation of the connecting links is provided.
  • the work clamping device is a vertical clamping device that abuts the vertical work member in an upright state with respect to the first horizontal work member and the second horizontal work member that are in contact with each other at a predetermined angle.
  • An orientation fixing device may be provided.
  • the vertical fixing device includes, for example, a vertically extending support, one or more supports for supporting a vertical work member provided on the support, and a tilting mechanism capable of tilting the support backward. (see FIG. 9), and a mode comprising an insertion portion into which the vertical work member can be inserted in an upright state and fixing means for fixing the vertical work member inserted into the insertion portion. (See Figures 14A and 14B).
  • the insertion portion may be, for example, a hole into which a vertical work member provided on the base can be inserted in an upright state.
  • the fixing means include a contact fixing member such as a bolt that abuts and fixes the side surface of the vertical work member from the side, and a magnet that fixes the vertical work member to the inner wall of the insertion portion.
  • the vertical fixing device preferably comprises height adjusting means for adjusting the height of the vertical work member inserted into the insertion portion.
  • Materials for the above-described base, supporting rotating shaft, and four-bar parallel link mechanism are not particularly limited, and examples thereof include iron, ordinary steel (carbon steel), Stainless steel, flame-retardant plastics, etc. can be mentioned, and ordinary steel (carbon steel) is preferable from the viewpoints of heat resistance, durability, cost, and the like.
  • a method for manufacturing a joined work member using the work clamping device described above is characterized by positioning a plurality of work members using the work clamping device described above (positioning step), and joining the plurality of work members in the positioned state (joining step). do.
  • a plurality of work members are positioned by a plurality of positioning devices using a work clamping device in which a plurality of positioning devices are arranged in a straight line.
  • Positioning the first and second horizontal work members by using a method for manufacturing a linear joint work member by joining a plurality of work members, or by using a work clamping device having first and second positioning devices.
  • a method for manufacturing a joined work member in which the first and second horizontal work members are joined in a state of being brought into contact with each other and positioned, and a work clamping device having first to third positioning devices is used to obtain the first and second horizontal work members.
  • a method of manufacturing a joined work member that joins work members can be mentioned.
  • the positioning step uses a work clamping device to position a plurality of horizontal work members arranged on the same plane at a predetermined angle, or to position one or more horizontal work members positioned at a predetermined angle on the same plane. is a step of positioning the vertical work member in the vertical direction in an upright state.
  • an auxiliary fixture may be attached to the workpiece clamping device to strengthen the positioning.
  • the joining process is a process of joining a plurality of work members in a positioned state, and welding can be mentioned as a joining method, for example.
  • a plurality of the above-described work clamping devices can be used as the method for manufacturing the joined work member of the present invention.
  • two or more workpiece clamping devices may be linearly arranged, and four workpiece clamping devices having first and second positioning devices may be arranged in a rectangular shape.
  • a work clamping system having a plurality of work clamping devices preferably includes connecting means for fixing the work clamping devices in a connected state.
  • the connecting means can be, for example, a connecting rail for connecting the work clamp devices, and it is preferable that the connecting rail is configured to be extendable. More preferably.
  • a work clamping system having four work clamping devices connects devices positioned diagonally to each other. It is preferable to provide connecting means for adjusting the diagonal length.
  • the connecting means for adjusting the diagonal length for example, two diagonal length adjusting connections whose both ends are connected to a diagonal work clamp device and whose length can be adjusted by fasteners such as turnbuckles. You can pick up a stick.
  • the work clamping device can be arranged at an exact 90° angle, forming an exact square.
  • FIG. 1 is a perspective view of the work clamping device according to the first embodiment of the present invention.
  • 2A and 2B are explanatory diagrams showing a method of using the work clamping device according to the first embodiment of the present invention, FIG. 2A is a diagram showing a state before positioning the work member, and FIG. FIG. 2C is a view showing the positioned state, and FIG. 2C is a cross-sectional view taken along the line AA in FIG. 2B;
  • a work clamping device 10 includes a positioning device 11 made of ordinary steel that detachably clamps and positions a long work member, and a positioning device 11. and a base 12 made of ordinary steel.
  • the base 12 is, for example, a long flat plate member having a width of approximately 50 mm and a length of approximately 300 mm.
  • the positioning device 11 includes supporting rotary shafts 13a and 13b erected at predetermined intervals on a base 12, and a four-bar parallel link mechanism 14 supported by the supporting rotary shafts 13a and 13b.
  • the support rotary shafts 13a and 13b are, for example, cylindrical members erected on the base 12 with an interval of 180 mm.
  • the rotating links 15a and 15b of the four-bar parallel link mechanism 14 are, for example, flat plate members having a width of about 30 mm and a length of about 130 mm, and their central portions are supported by the support rotating shafts 13a and 13b.
  • the connecting links 16a and 16b of the four-bar parallel link mechanism 14 are, for example, flat plate members having a width of about 30 mm and a length of about 180 mm. form a parallelogram.
  • connection links 16a and 16b are provided with work holding means 17a to 17d for holding work members when they approach each other.
  • the workpiece clamping means 17a to 17d are four protrusions integrally formed with a predetermined interval on the inner side of the connecting links 16a and 16b.
  • FIG. 2A a rectangular tubular work member 18 is placed on the four-bar parallel link mechanism 14 of the positioning device 11 of the work clamp device 10 .
  • FIGS. 2B and 2C the rotary links 15a and 15b of the four-bar parallel link mechanism 14 are rotated to bring the connecting links 16a and 16b closer to each other, and the workpiece clamping means 17a to 17d
  • a rectangular tubular work member 18 is sandwiched from both sides. Since the connecting links 16a and 16b approach the center of the straight line that connects the support rotation shafts 13a and 13b, the center of the rectangular tubular work member 18 can be aligned and positioned.
  • This embodiment differs from the first embodiment of the present invention in that three positioning devices are linearly arranged and the workpiece clamping means has a clamping recess corresponding to the outer shape of the workpiece member.
  • FIGS. 3 to 5 are explanatory diagrams showing a work clamping device according to a second embodiment of the present invention and a method of using the same
  • FIG. FIG. 4 shows a state in which a medium-diameter cylindrical work member to which a small-diameter cylindrical work member is joined and a large-diameter cylindrical work member are respectively positioned
  • FIG. 5 shows a state in which three cylindrical work members are joined. show.
  • FIG. 5B is a cross-sectional view of the positioning device viewed from line BB in FIG. 5A.
  • FIG. 6 is an enlarged explanatory view of a positioning device for a work clamping device according to a second embodiment of the present invention.
  • Members having the same configurations as those of the work clamping device 10 according to the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
  • the workpiece clamping device 20 As shown in FIG. 3, the workpiece clamping device 20 according to the second embodiment of the present invention has three positioning devices 21a to 21c arranged linearly.
  • the positioning device 21a of the workpiece clamping device 20 will be described with reference to FIG.
  • the positioning devices 21a to 21c have the same configuration.
  • the positioning device 21a includes a four-bar parallel link mechanism 14, and workpiece clamping means 22a to 22d for clamping a workpiece when the connecting links 16a and 16b of the four-bar parallel link mechanism 14 come close to each other.
  • the work clamping means 22a to 22d are four cylindrical members provided above the connecting links 16a and 16b at predetermined intervals. have. Since the clamping recess 23 clamps the cylindrical work member, the cylindrical work member can be securely clamped so as not to be displaced.
  • the rotation links 15a and 15b of the four-bar parallel link mechanism 14 of the positioning device 21a are rotated to bring the connecting links 16a and 16b closer to each other, thereby moving the workpiece clamping means 22a. 22d clamps the cylindrical work member to position the work member.
  • the positioning device 21a is the front end side
  • the positioning device 21c is the rear end side.
  • the small-diameter cylindrical work member 24 is installed and positioned in the positioning device 21c of the work clamp device 20, and the medium-diameter cylindrical work member 25 is installed and positioned in the positioning device 21b.
  • the leading end of the small-diameter cylindrical work member 24 is inserted from the rear end side of the medium-diameter cylindrical work member 25 to form an insertion portion (joint portion).
  • the positioning device 21b and the positioning device 21c of the workpiece clamping device 20 can align the centers of the shafts of the work members (align the centers) and position them, cylindrical work members with different diameters can be nested and positioned. can do.
  • a medium-diameter cylindrical work member 25 joined with a small-diameter cylindrical work member 24 is installed and positioned in the positioning device 21b of the work clamping device 20, and a large-diameter cylindrical work member is placed in the positioning device 21a. 25 is installed and positioned.
  • FIG. 5A in a state in which the medium-diameter cylindrical work member 25 and the large-diameter cylindrical work member 26 to which the small-diameter cylindrical work member 24 is joined are positioned, the leading end of the medium-diameter cylindrical work member 25 is attached to the large-diameter cylinder.
  • the work member 26 is inserted from the rear end side, and the insertion portion (joint portion) is joined by welding or the like.
  • the clamping recesses 23 of the workpiece clamping means 22a to 22d of the positioning device 21a are formed in an arc shape corresponding to the outer shape of the large-diameter cylindrical workpiece 26.
  • the work clamping device 20 can position the cylindrical work members 24 to 26 having different diameters by aligning the centers of their axes (aligning the centers), and in the positioned state, they are nested by welding or the like. can be spliced.
  • This embodiment differs from the first embodiment of the invention in that the two positioning devices are arranged at 90° (perpendicular).
  • FIG. 7 is a plan view of the positioning device of the work clamping device according to the third embodiment of the present invention.
  • FIG. 8 is an explanatory view showing how to use the work clamping device according to the third embodiment of the present invention, and shows a state in which the first and second horizontal work members are positioned.
  • Members having the same configurations as those of the work clamping device 10 according to the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
  • a workpiece clamping device 30 includes a first positioning device 31, a second positioning device 32, and an L-shaped base to which a positioning device 31 and a positioning device 32 are attached.
  • a platform 33 is provided.
  • the straight line connecting the two first supporting rotation shafts 34a and 34b of the first positioning device 31 is the X direction
  • the straight line connecting the two second supporting rotation shafts 35a and 35b of the second positioning device 32 is the Y direction. It is arranged at 90° in the XY two-dimensional coordinate system.
  • the first horizontal work member 36 is clamped and temporarily fixed to the positioning device 31 of the work clamp device 30, and the second horizontal work member 37 is clamped and temporarily fixed to the positioning device 32.
  • the front end side surface of the first horizontal work member 36 and the front end surface of the second horizontal work member 37 are brought into contact with each other at an angle of 90° for positioning (final fixation).
  • the present invention is provided with a vertical direction fixing device that abuts the vertical work member in an upright state against the first horizontal work member and the second horizontal work member that are in contact with each other at a predetermined angle. It differs from the third embodiment of the invention.
  • FIG. 9 is a perspective view of the work clamping device according to the fourth embodiment of the present invention.
  • 10A and 10B are explanatory diagrams showing how to use the work clamping device according to the fourth embodiment of the present invention
  • FIG. 10A is a diagram showing a state in which the first and second horizontal work members are positioned
  • FIG. 10C is a view showing the state in which the first and second horizontal work members and the vertical work members are positioned and joined
  • FIG. 10C is a three-dimensional structure in which the first and second horizontal work members and the vertical work members are joined It is a figure which shows the state to remove.
  • FIG. 11 is a perspective view showing a state in which four work clamping devices according to the fourth embodiment of the present invention are arranged.
  • Members having the same configurations as those of the work clamping device 30 according to the third embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
  • a work clamping device 40 comprises a first positioning device 31, a second positioning device 32, and a vertical fixing device 41.
  • the straight line connecting the two first support rotation shafts 34a and 34b of the first positioning device 31 is defined as the X direction
  • the straight line connecting the two first support rotation shafts 35a and 35b of the second positioning device 32 is defined as the Y direction
  • this XY In the XYZ three-dimensional coordinate system in which the direction orthogonal to the plane is the Z direction, the axes of the first positioning device 31 and the second positioning device 32 are arranged to intersect at 90°
  • the vertical fixing device 41 is positioned along the Z axis. placed in the direction
  • the vertical fixing device 41 includes, for example, a support 42 extending in the vertical direction, a support portion 43 provided on the support 42 for supporting a vertical work member, and a tilting mechanism capable of tilting the support 42 backward. are doing.
  • the first horizontal work member 44 is clamped and temporarily fixed to the first positioning device 31 of the work clamp device 40, and the second horizontal work member 45 is clamped and temporarily fixed to the second positioning device 32.
  • the vertical work member 46 is fixed to the vertical fixing device 41, and the top end surface of the first horizontal work member 44 and the top end surface of the second horizontal work member 45 and the vertical work member 46 are These work members 44 , 45 , 46 are joined by positioning (permanent fixation) by vertically abutting the side surface on the tip side.
  • the first horizontal work member 44, the second horizontal work member 45, and the vertical work member 46 are rectangular cylinders having the same cross-sectional shape.
  • four workpiece clamping devices 40 according to the fourth embodiment of the present invention are arranged so as to form a square as a whole, thereby facilitating a three-dimensional structure such as a cubic frame. can be positioned.
  • the work clamping devices 40 to be connected to each other by the extendable connection rail 48, work members of various sizes (lengths) can be easily positioned.
  • This embodiment differs from the fourth embodiment of the present invention in that two clamping recesses of the connecting link of the positioning device are formed in the vertical direction on the clamping surface.
  • FIG. 12A is a perspective view of the work clamping device according to the fifth embodiment of the present invention
  • FIG. 12B is a cross-sectional view of the second positioning device seen from line CC in FIG. 12A
  • FIG. 13 is a cross-sectional view of a clamping recess of another aspect of the work clamping means of the work clamping device according to the fifth embodiment of the present invention.
  • Members having the same configurations as those of the work clamping device 40 according to the fourth embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
  • the clamping surface of the work clamping means 51 of the second positioning device 32 clamps the work member in the vertical direction (longitudinal direction).
  • the clamping recesses 52 and 53 corresponds to the outer shape of the rectangular tubular second horizontal work member 45
  • the clamping recess 53 corresponds to the outer shape of the cylindrical work member 54 .
  • the work clamping means 55 of another aspect of the work clamping device 50 according to the fifth embodiment of the present invention has two clamping recesses 56, 56 and 56 in the perpendicular direction to the clamping surface for clamping the work member. 57 is formed.
  • the clamping recess 56 corresponds to the outer shape of the rectangular tubular second horizontal work member 45 rotated by 45°
  • the clamping recess 57 corresponds to the outer shape of the V-shaped work member 58 .
  • the vertical direction fixing device is provided with an insertion section into which the vertical work member can be inserted in an upright state, and fixing means for fixing the vertical work member inserted into the insertion section.
  • fixing means for fixing the vertical work member inserted into the insertion section.
  • FIG. 14A is an enlarged perspective view of the work clamping device according to the sixth embodiment of the invention
  • FIG. 14B is an enlarged side view of the work clamping device according to the sixth embodiment of the invention.
  • 15 and 16 are perspective views showing a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged
  • FIG. 16 is a diagram showing a state in which a plurality of work members are positioned
  • FIG. 17 is a diagram showing a state in which the stand member is provided.
  • FIG. 18 is a perspective view showing another aspect of a state in which four work clamping devices according to the sixth embodiment of the present invention are arranged, and is a diagram showing a state in which connecting rods for adjusting the diagonal length are provided.
  • 19 is a perspective view of a fixture for fixing the connecting rail;
  • FIG. Members having the same configurations as those of the work clamping device 40 according to the fourth embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
  • the work clamping device 60 comprises a first positioning device 31, a second positioning device 32, and a vertical fixing device 61.
  • the vertical fixing device 61 includes an insertion portion 63 into which the vertical work member 62 can be inserted in an upright state, and a fixing bolt 64 as fixing means for fixing the vertical work member 62 inserted into the insertion portion 63 from the side. are doing.
  • the vertical fixture 61 also includes a platform plate 65 to allow the vertical work member 62 to be adjusted to a desired height.
  • a work clamping device 60 As shown in FIG. 17, a work clamping device 60 according to the sixth embodiment of the present invention is provided with a stand member 68 that supports the device at a high position. can reduce the burden on
  • the four work clamping devices 60 include two diagonal length adjusting connecting rods 69 that connect the work clamping devices 60 positioned diagonally to each other, and connect the adjacent devices to each other.
  • An extendable connecting rail 48 and a fixture 70 for fixing the connecting rail 48 at a predetermined length may be provided.
  • the diagonal length adjusting connecting rod 69 is configured so that its length can be adjusted by a turnbuckle 71.
  • the fixture 70 for fixing the connecting rail 48 includes two stopper plates 72, two rod members 73 inserted through the stopper plates 72, and fixing bolts 74 and 75.
  • the stopper plates 72 are arranged at desired intervals by adjusting the positions of the fixing bolts 74 inside the stopper plates 72. By fixing the stopper plates 72 to the adjacent work clamping devices 60 with the fixing bolts 75, the workpieces can be clamped. Devices 60 are supported at desired intervals.
  • the work clamping device of the present invention is industrially useful, for example, because it can easily position work members used for joining processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

Dispositif de serrage de pièce à travailler (10) comprenant : un dispositif de positionnement (11) prenant en sandwich de façon détachable un élément de pièce à travailler pour positionner l'élément de pièce à travailler ; et une base (12) sur laquelle est fixé le dispositif de positionnement (11). Le dispositif de positionnement (11) comprend : deux arbres de rotation de support (13a, 13b) installés verticalement à un intervalle prédéterminé sur la base 1(2) ; et une liaison parallèle à quatre barres (14) formant un parallélogramme avec deux liaisons rotatives (15a, 15b) et deux liaisons de connexion (16a, 16b). La liaison parallèle à quatre barres (14) est conçue de telle sorte que : les deux liaisons rotatives (15a, 15b) sont portées de manière rotative par respectivement, les deux arbres de rotation de support (13a, 13b) ; et les deux liaisons de connexion (16a, 16b) sont aptes à être approchées et séparées l'une de l'autre en fonction de la rotation des deux liaisons rotatives (15a, 15b), et pourvues d'un moyen de prise en sandwich de pièce à travailler en coordination avec le fonctionnement des liaisons de connexion (16a, 16b), servant à prendre en sandwich l'élément de pièce à travailler lorsque les deux liaisons de connexion (16a, 16b) se rapprochent l'une de l'autre.
PCT/JP2021/041698 2021-11-12 2021-11-12 Dispositif de serrage de pièce à travailler WO2023084731A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2021/041698 WO2023084731A1 (fr) 2021-11-12 2021-11-12 Dispositif de serrage de pièce à travailler
JP2022519548A JP7171006B1 (ja) 2021-11-12 2021-11-12 ワーククランプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/041698 WO2023084731A1 (fr) 2021-11-12 2021-11-12 Dispositif de serrage de pièce à travailler

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843947Y1 (fr) * 1970-05-29 1973-12-18
JPS5410637Y2 (fr) * 1974-11-21 1979-05-16
JPS6018288Y2 (ja) * 1980-12-24 1985-06-03 関東自動車工業株式会社 工作物保持具
JP3037665B2 (ja) * 1997-11-06 2000-04-24 株式会社浅井鉄工所 小形異形物の掴持装置
WO2016194516A1 (fr) * 2015-06-05 2016-12-08 三桜工業株式会社 Mécanisme de mandrin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843947Y1 (fr) * 1970-05-29 1973-12-18
JPS5410637Y2 (fr) * 1974-11-21 1979-05-16
JPS6018288Y2 (ja) * 1980-12-24 1985-06-03 関東自動車工業株式会社 工作物保持具
JP3037665B2 (ja) * 1997-11-06 2000-04-24 株式会社浅井鉄工所 小形異形物の掴持装置
WO2016194516A1 (fr) * 2015-06-05 2016-12-08 三桜工業株式会社 Mécanisme de mandrin

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JP7171006B1 (ja) 2022-11-15

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