JP2005169537A - Workpiece positioning and fixing tool - Google Patents

Workpiece positioning and fixing tool Download PDF

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Publication number
JP2005169537A
JP2005169537A JP2003410710A JP2003410710A JP2005169537A JP 2005169537 A JP2005169537 A JP 2005169537A JP 2003410710 A JP2003410710 A JP 2003410710A JP 2003410710 A JP2003410710 A JP 2003410710A JP 2005169537 A JP2005169537 A JP 2005169537A
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Japan
Prior art keywords
workpiece
pressing
base plate
positioning
fixing
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Legal status (The legal status 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 status listed.)
Withdrawn
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JP2003410710A
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Japanese (ja)
Inventor
Shiro Komine
史郎 小峰
Original Assignee
Canon Electronics Inc
キヤノン電子株式会社
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Publication date
Application filed by Canon Electronics Inc, キヤノン電子株式会社 filed Critical Canon Electronics Inc
Priority to JP2003410710A priority Critical patent/JP2005169537A/en
Publication of JP2005169537A publication Critical patent/JP2005169537A/en
Withdrawn legal-status Critical Current

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Abstract

An object of the present invention is to make it possible to fix workpieces of different sizes and shapes with a single jig in a machine tool, and to reduce the work efficiency by reducing the time for jig exchange.
A base plate that is fixed to a table of a machine tool, and a reference member that is fixed on the base plate and has a reference surface that is arranged so as to have a predetermined positional relationship with respect to a spindle of the machine tool. 1A, 1B, a pressing unit 16A, 16B for pressing the workpiece against the reference plane, and a pressing unit 17 for pressing the workpiece 10 against the base plate.
[Selection] Figure 3

Description

  The present invention relates to a jig for positioning and fixing a workpiece on a table of a machine tool.
In order to machine a workpiece with a machine tool, it is necessary to securely fix the workpiece to the table of the machine tool. Conventionally, there are mainly three types of work fixing methods: vise, clamping, and chuck. The vice is widely used to fix a workpiece to a table of a machine tool, and includes a fixed claw and a moving claw facing each other, and the workpiece is fixed by moving the moving claw toward the fixed claw. If the workpiece is large, fix it with multiple vices. If the workpiece is a cylinder, fix it with a fixing claw with a V groove. Clamping is generally used for large workpieces that cannot be fixed with a vise. The mounting plate is fixed to the table of the machine tool, the workpiece is placed on the table and clamped to the mounting plate with clamp claws and fixing bolts. The chuck is used when machining a cylindrical object, and the work is fixed by simultaneously moving three claws arranged in the radial direction. After fixing the workpiece, use a test indicator or dial gauge to determine the flatness and XY parallelism to position the workpiece. The vise, clamping, and chuck are selectively used according to the shape and size of the workpiece during processing.
JP-A-6-339832
However, the conventional fixing method has the following problems.
(1) When sequentially processing workpieces of different sizes and shapes, a plurality of types of the above-mentioned fixing jigs must be prepared and used, and time is required for replacement work such as replacement of jigs in machining with machine tools. Reducing work efficiency.
(2) In the positioning of the work, since the work is fixed, the floating, the inclination, etc. are adjusted, and the work such as the flatness and the parallelism is performed using the measuring instrument.
  Therefore, the present invention has been made in view of the above-described problems, and the object thereof is to enable a workpiece having a different size and shape to be fixed with a single jig in a machine tool, and to reduce the time for jig exchange and the like. This is to prevent a reduction in work efficiency.
  Another object of the present invention is to prevent the workpiece from floating in the machine tool and to reduce the number of work steps for positioning work such as obtaining the flatness and parallelism of the workpiece.
  In order to solve the above-described problems and achieve the object, a workpiece positioning and fixing jig according to the present invention is fixed to a table of a machine tool, and fixed to the base plate. A reference member having a reference surface arranged so as to have a predetermined predetermined positional relationship, and a pressing unit arranged so as to be position-changeable with respect to the base plate and pressing a workpiece against the reference surface And a pressing unit that presses the workpiece against the base plate.
  In the workpiece positioning / fixing jig according to the present invention, the pressing unit is disposed to face the reference surface, and presses the workpiece against the reference surface with a feed screw.
  In the workpiece positioning and fixing jig according to the present invention, the reference member includes two reference surfaces orthogonal to each other, and the two pressing units are provided so as to face the two reference surfaces, respectively. It is characterized by that.
  In the workpiece positioning and fixing jig according to the present invention, the pressing unit includes a pressing claw for pressing the workpiece against the base plate, a height adjusting screw for adjusting the height of the pressing claw, and the pressing claw. And a fixing screw for fixing the base plate so as not to move relative to the base plate.
  In the workpiece positioning / fixing jig according to the present invention, the fixing screw fixes the pressing claw to a main body portion of the pressing unit.
  In the workpiece positioning / fixing jig according to the present invention, the fixing screw fixes the pressing claw to the base plate.
  Further, in the workpiece positioning and fixing jig according to the present invention, the pressing claw is formed in a substantially L shape, and is configured to be able to press workpieces having different heights by being used upside down. It is characterized by.
  According to the present invention configured as described above, it is possible to fix a workpiece having a different size and shape with a single jig in a machine tool, and to reduce the work efficiency by reducing the time for jig exchange and the like. Is possible.
  In addition, it is possible to prevent the workpiece from being lifted in the machine tool, and to reduce the man-hours for positioning work such as obtaining the flatness and parallelism of the workpiece.
  In addition, since the positional relationship between the spindle and the reference surface of the reference member can always be uniquely understood when processing the workpiece, reference point alignment in the XY directions is unnecessary, and the number of work steps such as positioning can be reduced.
  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
  FIG. 1 is a front view showing a state in which a positioning reference unit of a workpiece positioning fixture according to an embodiment of the present invention is attached to a table of a machine tool. FIG. 2 is a view taken in the direction of arrow I in FIG. 1 and is a plan view of the positioning reference unit attached to the table. FIG. 3 is a plan view showing a workpiece fixed state by the workpiece positioning fixture according to one embodiment of the present invention. FIG. 4 is a front view showing a fixed state of the work by the work positioning and fixing jig according to the embodiment of the present invention.
  In the present embodiment, a Z-axis stage 18 that moves up and down in parallel with the main axis 24 (Z-axis), an XY-axis stage 19 that is arranged on a plane perpendicular to the Z-axis and has an X-axis and a Y-axis, and XY The case where the workpiece positioning fixture 100 is attached to the machine tool 22 having the table 21 arranged on the axis stage 19 and movable in parallel to the XY axes will be described.
  The workpiece positioning / fixing jig 100 according to this embodiment includes three units: a positioning reference unit 23 that is a base of the positioning / fixing jig, pressing units 16A and 16B, and a pressing unit 17. . The positioning reference unit 23 includes a base plate 11 and reference members 1A and 1B fixed to the base plate 11, and the reference surfaces 13A and 13B of the reference members 1A and 1B are arranged so as to be orthogonal to each other. The pressing units 16A and 16B are configured to include movable blocks 2A and 2B, a clamp screw 3 with a handle, and a pressing portion 4, and the pressing unit 16B has a screw hole 9 for fixing the clamp pawl 5 (FIG. 7). See). The presser unit 17 includes a clamp claw 5, a fixing bolt 6, and a height adjusting screw 7.
  1 and 2, the positioning reference unit 23 is mounted on the table 21 so that the upper surface of the positioning reference unit 23 is perpendicular to the spindle 24 of the machine tool 22, and the reference surfaces 13A and 13B of the reference members 1A and 1B are machine tools. Are mounted parallel to the X and Y axes. Since the reference surfaces 13A and 13B of the reference members 1A and 1B move parallel to the XY2 axes of the machine tool and the coordinates of the intersection of the reference surfaces 13A and 13B are fixed, the intersection of the reference surfaces 13A and 13B is used as a reference point. It becomes possible to do. The reference surfaces 13A and 13B are positioned at predetermined positions with respect to the rotation spindle of the machine tool.
  For example, as shown in FIG. 11, the work 10 is a rectangular parallelepiped work having reference surfaces 25A and 25B orthogonal to each other and an attachment reference surface (lower surface) 26 perpendicular to the reference surfaces 25A and 25B.
  Next, a procedure for attaching the workpiece 10 to the workpiece positioning fixture 100 attached to the machine tool 22 will be described.
  First, the workpiece 10 is placed on the positioning reference unit 23 with the reference surfaces 25A and 25B abutting against the reference surfaces 13A and 13B. Then, the pressing units 16A and 16B are fixed to the mounting screw holes 8 (see FIGS. 1 and 2) in accordance with the size of the work 10 in a state in which the pressing portion 4 is pulled toward the movable blocks 2A and 2B. . At this time, the mounting screw hole 8 that selects the shortest distance between the tip of the presser portion 4 and the workpiece 10 is selected. Then, the clamp screw 3 with handle of the pressing units 16A and 16B is rotated to advance the pressing portion 4, and the work 10 is pressed against the reference surfaces 13A and 13B to be temporarily fixed.
  Next, the work unit 10 is pressed against the base plate 11 from above by the presser unit 17 to perform flattening. Specifically, the height adjusting screw 7 is screwed into the adjusting screw hole 14 (see FIG. 7) of the clamp claw 5, the clamp claw 5 is adjusted to the height of the workpiece 10, and the fixing bolt 6 is passed through the elongated hole 15. Then, it is screwed into the clamp claw fixing screw hole 9 (see FIG. 7) on the movable block 2B, and the work 10 is pressed from above. The clamp screw 3 with a handle of the pressing units 16A and 16B is further rotated to further advance the pressing portion 4, and the work 10 is permanently fixed (see FIGS. 3 and 4).
  Since the workpiece 10 has its reference surfaces 25A and 25B abutted against and fixed to the reference surfaces 13A and 13B, parallelism is not required, and the presser unit 17 is used to attach the base plate 11 and the workpiece 10 to the reference surface (lower surface). By bringing 26 into close contact, it is not necessary to obtain flatness. Since the intersection point of the reference surfaces 13A and 13B is the same as the intersection point of the workpiece reference surfaces 25A and 25B, machining on the machine tool is possible based on the intersection point.
  FIG. 5 is a front view showing a fixed state of the workpiece 10 in which the clamp claw 5 is turned upside down in the workpiece positioning and fixing jig.
  By flipping the clamp claws 5 up and down, even when the workpiece 10 is lower than the reference members 1A and 1B and the movable blocks 2A and 2B, it can be fixed as usual without interference. Further, the shape of the clamp claw is not limited to the shape of the present embodiment, and may be any other shape as long as it can be used upside down.
  FIG. 6 is a plan view showing a fixed state of the cylindrical workpiece.
  The cylindrical workpiece 10 ′ is fixed by abutting against the orthogonal reference surfaces 13A and 13B, so that the reference surfaces 13A and 13B become tangents of the circles orthogonal to each other, and the cylinder is determined from the coordinates of the intersection of the workpiece radius and the reference surfaces 13A and 13B. The workpiece can be positioned. In addition, since the pressing portion 4 of the pressing units 16A and 16B is movable, the pressing portion 4 clamps the outer periphery of the workpiece 10 ', so that stable clamping can be performed even in an irregular shape other than a rectangular parallelepiped.
  FIG. 7 is a cross-sectional view taken along the line AA of FIG. 3, and is a detailed view of the presser unit. This figure also shows that the workpiece 10 can be pressed even if it is higher than the height adjustment screw 7.
  In the present embodiment, two orthogonal reference members have been described, but the reference member may have a shape like an L-shaped reference member 12 shown in FIG. 8 as long as it has orthogonal reference surfaces.
  In addition, as the pressing unit, the one having no clamp claw fixing screw hole (FIG. 9) and the one having both the clamp claw fixing screw hole 9 and the clamp screw 3 with handle (FIG. 10) are shown. The structure of this embodiment is not limited as long as it has a mechanism for feeding the gold part and has a function of being attached in parallel to the reference members 1A and 1B.
  In the present embodiment, the machine tool in which the X and Y axes move parallel to the table and the Z axis moves up and down has been described. However, the positioning unit 23 can be fixed on a plane perpendicular to the main axis, and parallel to the XY axis. As long as the reference surfaces 13A and 13B of the reference members 1A and 1B can be fixed, the structure of the machine tool is not limited to the structure of the present embodiment.
  In the present embodiment, the clamp claw 5 has been described as being fixed to the movable block 2 </ b> B, but may be directly screwed to the base plate 11.
  As described above, according to the above-described embodiment, the pressing unit can change the mounting position depending on the size of the workpiece, and the pressing portion can be moved to fix the workpiece so that a cylinder or the like other than the rectangular parallelepiped is different. Since the workpiece of the shape can be fixed, there is an effect of reducing the time for jig replacement or the like.
  In addition, the fixed reference member has two reference surfaces orthogonal to each other and the reference surface is mounted in parallel with the X and Y axes of the machine tool, so that the parallel projection when the workpiece end surface is used as a reference is used as the reference surface. It is possible only by abutting and fixing. In addition, it can be mounted on the table so that the upper surface of the base plate is perpendicular to the spindle of the machine tool, and the presser unit can make the work surface flat by attaching the work mounting reference surface to the upper surface of the base plate. Effective in reducing work man-hours.
  In addition, the presser unit prevents the workpiece from floating, the fixing position can be fixed by either the presser unit or the movable block, and the clamp pawl can be used upside down, so the length of the height adjustment screw is shortened. There are effects such as being able to.
  In addition, since the positional relationship between the spindle and the reference surface of the reference member can always be uniquely understood when processing the workpiece, reference point alignment in the XY directions is unnecessary, and the number of work steps such as positioning can be reduced.
It is a front view which shows the state which attached the positioning reference | standard unit of the positioning fixture of the workpiece | work concerning one Embodiment of this invention to the table of a machine tool. FIG. 2 is a plan view of a positioning reference unit attached to a table, as seen from the direction of arrow I in FIG. 1. It is a top view which shows the fixed state of the workpiece | work by the workpiece positioning fixing jig concerning one Embodiment of this invention. It is a front view which shows the fixed state of the workpiece | work by the workpiece positioning fixing jig concerning one Embodiment of this invention. It is a front view which shows the fixed state of the workpiece | work which used the clamp nail | claw by the workpiece positioning fixing jig concerning one embodiment of the present invention upside down. It is a top view which shows the fixed state of the cylindrical workpiece | work by the workpiece positioning fixing jig concerning one Embodiment of this invention. It is AA sectional drawing of FIG. 3, and is a detailed view of a pressing unit. It is a top view which shows the fixed state of the workpiece | work at the time of using the L-shaped reference | standard member in the positioning fixing jig of the workpiece | work concerning one Embodiment of this invention. It is detail drawing of a pressing unit. It is detail drawing of a pressing unit. It is explanatory drawing of the work of a general rectangular parallelepiped.
Explanation of symbols
1A, 1B Reference member 2A, 2B Movable block 3 Clamp screw with handle 4 Pusher part 5 Clamp claw 6 Fixing bolt 7 Height adjusting screw 8 Movable block positioning screw hole 9 Clamp claw fixing screw hole 10 Work 11 Base plate 12 L Shaped reference member 13A, 13B Reference surface 14 Adjustment screw hole 15 Long hole 16A, 16B Press unit 17 Presser unit 18 Z-axis stage 19 XY-axis stage 20 Spindle unit 21 Table 22 Machine tool 23 Positioning reference unit 24 Spindle 25A, 25B Reference plane of workpiece 26 Reference plane for mounting workpiece

Claims (7)

  1. A base plate fixed to the table of the machine tool;
    A reference member fixed on the base plate and having a reference surface arranged so as to have a predetermined positional relationship with respect to the spindle of the machine tool;
    A pressing unit that is arranged to be position-changeable with respect to the base plate and presses the workpiece against the reference surface;
    A holding unit that presses the workpiece against the base plate;
    A jig for positioning and fixing a workpiece characterized by comprising:
  2.   2. The workpiece positioning and fixing jig according to claim 1, wherein the pressing unit is disposed to face the reference surface and presses the workpiece against the reference surface with a feed screw.
  3.   2. The workpiece positioning according to claim 1, wherein the reference member includes two reference surfaces orthogonal to each other, and two pressing units are provided so as to face the two reference surfaces, respectively. fixing jig.
  4.   The presser unit is configured to fix the presser claw so as not to move relative to the base plate, a presser claw that presses the work against the base plate, a height adjusting screw for adjusting the height of the presser claw, and the presser claw. The workpiece positioning and fixing jig according to claim 1, further comprising: a fixing screw.
  5.   The workpiece fixing jig according to claim 4, wherein the fixing screw fixes the pressing claw to a main body portion of the pressing unit.
  6.   The workpiece fixing jig according to claim 4, wherein the fixing screw fixes the pressing claw to the base plate.
  7.   5. The workpiece according to claim 4, wherein the pressing claw is formed in a substantially L shape, and is configured to be able to press workpieces having different heights by being used upside down. Positioning fixture.
JP2003410710A 2003-12-09 2003-12-09 Workpiece positioning and fixing tool Withdrawn JP2005169537A (en)

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Application Number Priority Date Filing Date Title
JP2003410710A JP2005169537A (en) 2003-12-09 2003-12-09 Workpiece positioning and fixing tool

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Application Number Priority Date Filing Date Title
JP2003410710A JP2005169537A (en) 2003-12-09 2003-12-09 Workpiece positioning and fixing tool

Publications (1)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100692188B1 (en) 2006-03-31 2007-03-12 경신공업 주식회사 Common zig changing for junction box
JP2007083390A (en) * 2005-09-21 2007-04-05 F-Tool Internatl Ag Clamp device for workpiece
CN102139454A (en) * 2010-11-19 2011-08-03 无锡曙光模具有限公司 Fixture structure for machining large thin-wall annular part
CN102240916A (en) * 2011-06-29 2011-11-16 东莞市科讯机械自动化设备有限公司 Metal part tool
CN102328222A (en) * 2011-07-29 2012-01-25 吴江市和喜机械有限公司 Fixture
CN102950488A (en) * 2011-08-17 2013-03-06 上海龙钰电梯配件有限公司 Clamp arm machine tool
CN103100900A (en) * 2012-11-15 2013-05-15 无锡市航鹄科技有限公司 Adjustable type milling positioning tool
CN103100892A (en) * 2012-11-12 2013-05-15 无锡市航鹄科技有限公司 Potentiometer support positioning tool
JP2013154408A (en) * 2012-01-26 2013-08-15 Seibu Electric & Mach Co Ltd Level adjustment jig, plate material holding device having the level adjustment jig, and method of adjusting arrangement of plate material
CN103639556A (en) * 2013-11-28 2014-03-19 无锡市航鹄科技有限公司 Wire-cutting positioning tool of crank shaft
CN103769869A (en) * 2014-01-24 2014-05-07 南通国盛精密机械有限公司 Workbench for vertical milling machine
JP2014188648A (en) * 2013-03-28 2014-10-06 Fuji Mach Mfg Co Ltd Work reversing device and lathe
KR101474269B1 (en) * 2013-07-25 2014-12-18 재영솔루텍 주식회사 Device for biting the ejection rod of injection molding
CN104440222A (en) * 2014-09-24 2015-03-25 柳州铁道职业技术学院 Clamp special for milling grooves in flanged bearing bushes
CN105108523A (en) * 2015-08-20 2015-12-02 天津市华天世纪机械有限公司 Tool fixture for milling machine
CN106001722A (en) * 2016-06-28 2016-10-12 梧州奥卡光学仪器有限公司 Machining method for condenser lifting seat
CN106563956A (en) * 2015-10-09 2017-04-19 特变电工沈阳变压器集团有限公司 Machining fixture for transformer clamp tape limb plate and use method of machining fixture
KR101759527B1 (en) 2015-07-31 2017-07-19 유상철 Jig Workpiece for CNC milling machine

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007083390A (en) * 2005-09-21 2007-04-05 F-Tool Internatl Ag Clamp device for workpiece
KR100692188B1 (en) 2006-03-31 2007-03-12 경신공업 주식회사 Common zig changing for junction box
CN102139454A (en) * 2010-11-19 2011-08-03 无锡曙光模具有限公司 Fixture structure for machining large thin-wall annular part
CN102240916A (en) * 2011-06-29 2011-11-16 东莞市科讯机械自动化设备有限公司 Metal part tool
CN102328222A (en) * 2011-07-29 2012-01-25 吴江市和喜机械有限公司 Fixture
CN102950488A (en) * 2011-08-17 2013-03-06 上海龙钰电梯配件有限公司 Clamp arm machine tool
JP2013154408A (en) * 2012-01-26 2013-08-15 Seibu Electric & Mach Co Ltd Level adjustment jig, plate material holding device having the level adjustment jig, and method of adjusting arrangement of plate material
CN103100892A (en) * 2012-11-12 2013-05-15 无锡市航鹄科技有限公司 Potentiometer support positioning tool
CN103100900A (en) * 2012-11-15 2013-05-15 无锡市航鹄科技有限公司 Adjustable type milling positioning tool
JP2014188648A (en) * 2013-03-28 2014-10-06 Fuji Mach Mfg Co Ltd Work reversing device and lathe
KR101474269B1 (en) * 2013-07-25 2014-12-18 재영솔루텍 주식회사 Device for biting the ejection rod of injection molding
CN103639556A (en) * 2013-11-28 2014-03-19 无锡市航鹄科技有限公司 Wire-cutting positioning tool of crank shaft
CN103769869A (en) * 2014-01-24 2014-05-07 南通国盛精密机械有限公司 Workbench for vertical milling machine
CN104440222A (en) * 2014-09-24 2015-03-25 柳州铁道职业技术学院 Clamp special for milling grooves in flanged bearing bushes
KR101759527B1 (en) 2015-07-31 2017-07-19 유상철 Jig Workpiece for CNC milling machine
CN105108523A (en) * 2015-08-20 2015-12-02 天津市华天世纪机械有限公司 Tool fixture for milling machine
CN106563956A (en) * 2015-10-09 2017-04-19 特变电工沈阳变压器集团有限公司 Machining fixture for transformer clamp tape limb plate and use method of machining fixture
CN106001722A (en) * 2016-06-28 2016-10-12 梧州奥卡光学仪器有限公司 Machining method for condenser lifting seat

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