WO2007026632A1 - ガイドテーブル装置 - Google Patents
ガイドテーブル装置 Download PDFInfo
- Publication number
- WO2007026632A1 WO2007026632A1 PCT/JP2006/316838 JP2006316838W WO2007026632A1 WO 2007026632 A1 WO2007026632 A1 WO 2007026632A1 JP 2006316838 W JP2006316838 W JP 2006316838W WO 2007026632 A1 WO2007026632 A1 WO 2007026632A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- plate
- rolling element
- table device
- guide table
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/008—Systems with a plurality of bearings, e.g. four carriages supporting a slide on two parallel rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3825—Ball cages formed as a flexible belt, e.g. spacers connected by a thin film
Definitions
- the present invention relates to a guide table device, and more particularly to an improvement of a guide table device that can achieve a reduction in size and weight while maintaining high rigidity and guiding accuracy.
- a so-called built-up type guide table device using a linear guide device has been known as a device for freely moving a work table of a machine tool in X and Y directions orthogonal to each other.
- a guide table device is provided with a track rail along the X direction on a base such as a bed or a column, and a lower table that moves along the track rail, and is further provided on the lower table.
- a track rail is provided along the Y direction, and an upper table that moves along the track rail is provided. Therefore, in such a guide table device, the upper table can be freely moved in the X direction and the Y direction with respect to the base (see, for example, Patent Document 1 below).
- Patent Document 2 discloses a guide table device that is reduced in size and weight by pressing a thin steel plate.
- a powerful guide table device forms a channel-like lower plate and upper plate by bending both ends of a steel plate with a press carriage, while two opposite sides of the surrounding four sides are on the lower side.
- the intermediate member is formed by bending the remaining two sides upward, and the upper plate, the intermediate member, and the lower plate are combined so that the bent side walls face each other.
- a plurality of balls are arranged between the side wall portions facing each other, and a powerful ball rolls on the side wall portion, so that the intermediate member moves in the X direction with respect to the lower plate, and the upper plate moves. It is possible to move in the Y direction with respect to the intermediate member.
- Patent Document 3 listed below enables rotation in the rotational ( ⁇ ) direction in addition to the horizontal (XY) direction.
- Such a guide table device is disclosed.
- the guide table device described in Patent Document 3 below realizes guidance in the ⁇ direction by combining a cross orthogonal guide and a bearing.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11 280761
- Patent Document 2 JP-A-5-18415
- Patent Document 3 Japanese Patent Laid-Open No. 9-243766
- Patent Document 1 has a Y-direction track rail disposed on a lower table that moves in the X direction. It must have high rigidity, and the height from the fixed part to the upper table must be increased. Therefore, there is a problem that the apparatus becomes larger and heavier.
- the guide table device described in Patent Document 2 realizes a reduction in size and weight
- the lower plate, the intermediate member, and the upper plate are manufactured by press calorie of a thin steel plate.
- the ball rolling groove is formed in the side wall portion where the steel plate is bent and raised. For this reason, if the accuracy of the pressing force is poor, a gap is generated between the ball and the ball rolling groove, the intermediate member force against the lower plate, and the upper plate rattles against the intermediate member, If the upper plate cannot be moved with high accuracy with respect to the lower plate, a problem arises.
- the guide table device that guides only in the XY directions has the above-described problems.
- the device is further increased in size and weight. I can't.
- a shaft body is provided on the upper side of three cross orthogonal guides, and the table is disposed via a bearing installed on the shaft body. Therefore, the guide table device described in Patent Document 3 has to be large in both the vertical and horizontal directions in order to accommodate the components, and because of having such a configuration, the manufacturing cost must be increased. It was a thing.
- the present invention has been made in view of the above-mentioned problems, and the object thereof is a new that can achieve a reduction in size and weight while maintaining high rigidity and guiding accuracy. Is to provide a simple guide table device.
- a guide table device includes a lower plate having a pair of rolling element rolling grooves formed in a first direction and a pair of rolling element rolling grooves formed in a second direction.
- a rectangular plate having four rolling element rolling grooves arranged on opposite sides of the upper plate, a pair of rolling element rolling grooves provided in the lower plate, and a pair of rolling element rolling grooves provided in the upper plate, respectively.
- An intermediate member having a contoured outer shape, and a plurality of rolling elements that are freely rollable between four rolling element rolling paths formed by the lower plate and the upper plate and the intermediate member.
- the intermediate member is formed on the same plane with four rolling element rolling groove forces provided on four sides.
- Another guide table device includes a skirt portion standing upward from two opposite sides of a rectangular lower plate plane portion fixed to a base, and the skirt Lower plate provided with rolling element rolling grooves on each of the inner surfaces facing each other, and a guide object
- Two opposite sides of the rectangular upper plate plane part to which the object is fixed, the two skirts of the lower plate are vertically suspended from two sides extending in a direction perpendicular to the two sides to be installed.
- an intermediate member having a rectangular outer shape having four rolling element rolling grooves arranged on four sides respectively opposed to the rolling element rolling grooves, the lower plate and the upper plate, and the intermediate member
- a plurality of rolling elements that are freely rollable between the rolling paths, and the four rolling element rolling grooves provided on the four sides of the intermediate member are coplanar. Up Characterized in that it is formed.
- the lower plate and the upper plate can be formed in the same shape and the same size.
- the plurality of rolling elements may be installed between the four rolling element rolling paths via a cage.
- the lower plate and the upper plate are formed in at least one access hole formed in the plate plane portion and in the plate plane portion.
- At least one screw hole, and the intermediate member has a hollow structure in which an opening is formed in a rectangular central portion, so that when the lower plate side force is also seen, the lower plate
- a fastening means can be screwed into a screw hole drilled in the upper plate through an access hole drilled in the upper plate, and when viewed from the upper plate side force, the access drilled in the upper plate
- the fastening means can be screwed into a screw hole formed in the lower plate through a hole.
- the lower plate and the upper plate restrict rolling of the rolling element to a stroke end of a rolling element rolling groove included in each of the lower plate and the upper plate. Therefore, it is possible to provide rolling element regulating means.
- the rolling element restricting means includes: The lower plate and the upper plate are each composed of a spring pin insertion hole formed at a stroke end of a rolling element rolling groove provided in the rolling plate, and a spring pin inserted and installed in the spring pin insertion hole. Can be.
- the lower plate and the upper plate have a length of a side where a rolling element rolling groove is formed as ⁇ , and the rolling element rolling groove. It is preferable that the length of the side having no edge is j8, so that the relationship is as follows.
- a guide table device includes a first plate including a pair of rolling element rolling grooves that are formed in a linear direction and arranged to face each other, and a concave that is formed and has a curvature.
- a second plate provided with a pair of rolling element rolling grooves arranged opposite to each other, a pair of rolling element rolling grooves provided in the first plate, and a pair of rolling element rolling grooves provided in the second plate
- An intermediate member having a substantially oval outer shape with four rolling element rolling grooves facing each other at substantially equal intervals, the first plate, the second plate, and the intermediate member;
- a plurality of rolling elements that are movably installed between the four rolling element rolling paths formed by the above.
- the first plate is a pair of linear skirt portions installed on two opposing linear sides of the first plate plane portion fixed to the base or the guide object.
- the rolling plate rolling groove is provided on each of the opposing inner side surfaces of the pair of linear skirt portions, and the second plate has a generally oval shape to which the guide object or the base is fixed.
- the plate flat surface portion is provided with a pair of curvature skirt portions installed on two sides having opposite curvatures, and the rolling element rolling grooves are provided on each of the opposed inner side surfaces of the curvature skirt portions. it can.
- the plurality of rolling elements can be installed between the four rolling element rolling paths via a cage.
- the first plate and the second plate each include at least one access hole formed in each plate plane portion, and the plate plane portion.
- the intermediate member When viewed from the first plate side, the intermediate member has a hollow structure in which an opening is formed in a central portion of a substantially oval shape.
- the access drilled in the first plate A fastening means can be screwed into a screw hole drilled in the second plate through a hole, and when viewed from the second plate side force, via an access hole drilled in the second plate The fastening means can be screwed into the screw hole formed in the first plate.
- the first plate and the second plate restrict rolling of the rolling element to a stroke end of a rolling element rolling groove included in each of the first plate and the second plate. Therefore, it is possible to provide rolling element regulating means.
- the rolling element restricting means is provided at a stroke end of a rolling element rolling groove provided in each of the first plate and the second plate. It can be constituted by a formed spring pin insertion hole and a spring pin inserted and installed in the spring pin insertion hole.
- the first plate and the second plate have a linear length of a side where the rolling element rolling groove is formed as ⁇ , and the rolling element rolling groove. It is preferable that the straight line length of the side where there is no is j8, so that the relation of ⁇ ⁇ is satisfied.
- the four rolling element rolling grooves provided on the four sides of the intermediate member can be formed on the same plane.
- Another guide table device includes a pair of rolling element rolling grooves formed in a first direction, a lower plate provided with rolling grooves, and a pair of rolling element rolling formed in a second direction.
- Four rolling element rolling grooves respectively disposed opposite to an upper plate having a groove, a pair of rolling element rolling grooves provided in the lower plate, and a pair of rolling element rolling grooves provided in the upper plate
- a plurality of rolling elements installed in a freely rolling manner between four rolling element rolling paths formed by an intermediate member having a rectangular outer shape on four sides, the lower plate, the upper plate, and the intermediate member.
- a lower table, wherein the lower plate has a lower skirt portion erected upward from two opposite sides of a rectangular lower plate plane portion fixed to the base.
- the lower scar Rolling member rolling grooves are provided on each of the opposing inner side surfaces of the portion, and the upper plate is two opposite sides of a rectangular upper plate plane portion on which the guide object is fixed, the lower side Pre An upper skirt portion that hangs downward from two sides extending in a direction perpendicular to the two sides on which the lower skirt portion of the seat is installed, and a rolling element on each of the opposing inner side surfaces of the upper skirt portion
- the intermediate member has a rolling structure in which four rolling elements provided on four sides are formed on the same plane, and an opening is formed in a rectangular central portion.
- the opening is formed in a circular shape, and a rotary bearing or a cross roller ring is installed in the powerful circular opening, whereby the guide table device The whole can be rotated.
- FIG. 1 is an external perspective view showing an overall outline of a guide table device according to a first embodiment.
- FIG. 2 is an exploded perspective view for explaining constituent members of the guide table device according to the first embodiment.
- FIG. 3A is an external top view of the guide table device according to the first embodiment when viewed from above.
- FIG. 3B is a longitudinal sectional side view showing the AA section shown in FIG. 3A.
- FIG. 3C is a longitudinal sectional side view showing a BB cross section shown in FIG. 3A.
- FIG. 4 is an enlarged view of a main part for explaining the rolling element regulating means according to the first embodiment.
- FIG. 5 is an external perspective view showing an overall outline of a guide table device according to a second embodiment.
- FIG. 6 is an exploded perspective view for explaining constituent members of the guide table device according to the second embodiment.
- FIG. 7A is an external top view of the guide table device according to the second embodiment when viewed from the upper side.
- FIG. 7B is a longitudinal sectional side view showing a CC section shown in FIG. 7A.
- FIG. 7C is a longitudinal sectional side view showing a DD section shown in FIG. 7A.
- FIG. 8 is an enlarged view of a main part for explaining rolling element restricting means according to the second embodiment.
- FIG. 9 is an external perspective view showing an overall outline of a guide table device according to a third embodiment.
- FIG. 10 is an exploded perspective view for explaining constituent members of the guide table device according to the third embodiment.
- FIG. 11A is an external top view of the guide table device according to the third embodiment as viewed from above.
- FIG. 11B is a longitudinal sectional side view showing the EE cross section shown in FIG. 11A.
- FIG. 11C is a longitudinal cross-sectional side view showing the FF cross section shown in FIG. 11A.
- FIG. 12 is an enlarged view of a main part for explaining rolling element restricting means according to a third embodiment.
- FIG. 1 is an external perspective view showing an overall outline of the guide table device according to the first embodiment.
- FIG. 2 is an exploded perspective view for explaining the constituent members of the guide table device according to the first embodiment.
- the guide table device according to the first embodiment includes a lower plate 10, an intermediate member 20, an upper plate 30, and a plurality of balls 40 as main components.
- the lower plate 10 is a member including a pair of rolling element rolling grooves 11 formed in a first direction (a direction indicated by a symbol X, hereinafter referred to as “X direction”).
- the specific configuration of the lower plate 10 is erected upward from two sides extending in the X direction among two opposing sides of the rectangular lower plate plane portion 10a and the lower plate plane portion 10a.
- the lower plate flat surface portion 10a is a member that can be fixedly installed on a base such as a bed or a column that serves as an installation standard for the guide table device, and includes a screw hole 12 for that purpose.
- the pair of skirt portions 10b roll on each of the opposed inner surfaces. It is a member having a body rolling groove 11 and can receive a rolling load from a plurality of balls 40 described later.
- the upper plate 30 is a member formed in the same shape and size as the lower plate 10, and is used with the lower plate 10 turned over as it is. That is, the upper plate 30 is a member including a pair of rolling element rolling grooves 31 formed in a second direction (a direction indicated by a symbol Y, hereinafter referred to as “Y direction”).
- Y direction a direction indicated by a symbol Y, hereinafter referred to as “Y direction”.
- the upper plate plane portion 30a having a rectangular shape to which the guide object is fixed and two opposite sides of the upper plate plane portion 30a, and the skirt portion 10b of the lower plate 10 are It has a feature that it includes a pair of skirt portions 30b that hang downward from two sides extending in a direction perpendicular to the two sides to be installed (that is, the Y direction).
- a rolling element rolling groove 31 is also formed on each of the opposing inner side surfaces of the pair of skirt portions 3 Ob, and a rolling load from a plurality of balls 40 described later is received by the powerful rolling element rolling groove 31. It can be done.
- the upper plate 30 and the guide object are fixed using the screw holes 32 formed in the upper plate flat portion 30a.
- the intermediate member 20 is a member installed so as to be sandwiched between the lower plate 10 and the upper plate 30.
- the intermediate member 20 has a rectangular outer shape, and rolling element rolling grooves 21 are formed on the four sides forming the outer periphery.
- rolling element rolling grooves 21 are formed on the four sides forming the outer periphery.
- two rolling element rolling grooves 21 formed in the X direction are arranged opposite to the pair of rolling element rolling grooves 11 of the lower plate 10, and are arranged in the Y direction.
- the two rolling element rolling grooves 21 formed are disposed opposite to the pair of rolling element rolling grooves 31 included in the upper plate 30.
- a pair of rolling element rolling paths extending in the X direction is formed by the two rolling element rolling grooves 21 formed in the X direction and the pair of rolling element rolling grooves 11 included in the lower plate 10.
- a pair of rolling element rolling paths extending in the Y direction is formed by the two rolling element rolling grooves 21 formed in the Y direction and the pair of rolling element rolling grooves 31 included in the upper plate 30.
- a plurality of balls 40 are installed between these four rolling element rolling paths so as to freely roll.
- the plurality of balls 40 are installed between the four rolling element rolling paths via the cage 41, and the aligned rolling of the plurality of balls 40 is always maintained by the installation effect of the cage 41.
- the basic configuration of the guide table device according to the first embodiment has been described above.
- the four sides of the intermediate member 20 are provided.
- the four rolling element rolling grooves 21 are formed on the same plane. That is, in the conventional guide table device, the rolling element rolling grooves formed in the intermediate member are formed on different planes for the X direction and the Y direction, respectively.
- the load in the guide direction was not applied evenly, and more than two widths of the rolling element rolling groove were required.
- the intermediate member 20 according to the first embodiment since all the rolling element rolling grooves 21 are formed on the same plane, the applied load is averaged and the width of the rolling element rolling grooves is increased. A thickness of about one is sufficient, and the device can be made compact.
- FIG. 3A is an external top view of the guide table device according to the first embodiment when the upward force is also viewed.
- 3B is a longitudinal sectional side view showing the AA section shown in FIG. 3A
- FIG. 3C is a longitudinal sectional side view showing the BB section shown in FIG. 3A.
- the lower plate 10 and the upper plate 30 according to the first embodiment are formed in the diagonal direction of the plate plane portions 10a, 30a.
- Access holes 13 and 33 are formed respectively.
- the screw holes 12 for screwing with the base (not shown) and the screw holes 32 for screwing with the guide object (not shown) are on both sides of the access holes 13 and 33, respectively.
- 13 and 33 are perforated on a diagonal line perpendicular to the direction in which they are formed.
- the access hole 13 drilled in the lower plate 10 and the access hole 33 drilled in the upper plate 30 are arranged in a direction intersecting at right angles in the assembled state of the lower plate 10 and the upper plate 30. Has been.
- the intermediate member 20 positioned between the lower plate 10 and the upper plate 30 is formed as a hollow structure in which an opening 22 is formed in a rectangular central portion. That is, in the guide table device according to the first embodiment, the upper plate 30 side access Since the screw hole 12 on the lower plate 10 side can be confirmed from the hole 33 on the lower plate, a tool such as a screwdriver is inserted from the access hole 33 on the upper plate 30 side to install the screw on the lower plate. It is possible to achieve this by applying insects such as bolts 50 to the screw holes 12 on the 10 side.
- the access holes 13 and 33 may have a long hole shape as shown in FIGS. 1 to 3C, or the access hole 13 and the screw hole 32 when the assembly of the guide table device is completed. As long as the access hole 33 and the screw hole 12 can be arranged at positions where they overlap each other in the vertical direction, any shape such as a round hole shape or an oval hole shape can be adopted.
- the head 50a of the bolt 50 screwed into the screw hole 12 on the lower plate 10 side and the head 52a of the bolt 52 screwed into the screw hole 32 on the upper plate 30 side are respectively Is in contact with the inner wall surface of the opening 22 formed in the intermediate member 20, so that it also serves to define the stroke range in the XY direction. That is, the heads 50a and 52a of the bolts 50 and 52 can exhibit the function as a mechanical stop.
- the stroke range in the XY direction can be arbitrarily defined, and the lower side relative to the intermediate member 20 Unnecessary movement of the plate 10 and the upper plate 30 can be prevented.
- this configuration also leads to omission of a member for defining the stroke range in the XY directions, so that it is possible to contribute to a reduction in manufacturing cost due to a reduction effect of the component parts.
- FIG. 4 is an enlarged view of a main part for explaining the rolling element regulating means 60 according to the first embodiment.
- the powerful rolling element regulating means 60 is composed of the lower plate 10 and Spring pin insertion holes 15, 35 formed at the stroke ends of the rolling element rolling grooves 11, 31 provided in the upper plate 30, and spring pins 16, 36 inserted and installed in the spring pin insertion holes 15, 35 And is composed of.
- a plurality of balls 40 that are maintained in an aligned state by being installed in the cage 41 may move to one side in the rolling element rolling path by repeatedly rolling in the XY directions. is there. If there is no means for restricting the ball 40 at the stroke end of the rolling element rolling grooves 11 and 31, the ball 40 is biased to the end of the rolling element rolling path, and in the worst case, the ball 40 has a rolling element rolling path force. There is a possibility that a situation where smooth rolling operation cannot be performed, such as disengagement, may occur. Therefore, the movement of the cage 41 is restricted by the spring pins 16 and 36 installed so as to protrude from the rolling element rolling grooves 11 and 31, so that the rolling range of the ball 40 is set within a predetermined range. It was.
- the spring pins 16, 36 and the springs are prevented from having the advantage that they do not receive a high load force S and do not require the accuracy of the mating hole.
- the configuration of pulling pin insertion holes 15, 35 was adopted.
- any rolling element restricting means that can restrict the movement of the cage 41 may be used.
- the length of the side where the rolling element rolling grooves 11, 31 are formed is ⁇
- 8 it can be defined by satisfying the relationship of a ⁇ j8 (see Fig. 2). That is, the difference in numerical value from the human ⁇ becomes the stroke distance in the XY direction as it is, and it is possible to design a guide table device having a desired stroke range by appropriately changing this value.
- FIG. 5 is an external perspective view showing an overall outline of the guide table device according to the second embodiment.
- FIG. 6 is an exploded perspective view for explaining the constituent members of the guide table device according to the second embodiment.
- the guide table device according to the second embodiment includes a first plate 110, an intermediate member 120, a second plate 130, and a plurality of balls 140 as main constituent members.
- the first plate 110 is a member including a pair of rolling element rolling grooves 111 formed in a linear direction (a direction indicated by a symbol X, hereinafter referred to as "X direction").
- the specific configuration of the first plate 110 is a rectangular first plate flat surface portion 110a and two sides facing each other of the first plate flat surface portion 110a that are erected above the two-side force extending in the X direction.
- a pair of linear skaters 110b is a member that can be fixedly installed on a base such as a bed or a column, which is an installation reference of the guide table device, or a guide object, and is provided with a screw hole 112 therefor.
- the pair of straight skirt portions 110b is a member provided with rolling element rolling grooves 111 on each of the opposed inner side surfaces, and can receive rolling loads from a plurality of balls 140 described later.
- the second plate 130 is a member including a rolling element rolling groove 131 having a pair of curvatures formed in a rotation direction (a direction indicated by reference numeral 0, and hereinafter referred to as a " ⁇ direction").
- a direction indicated by reference numeral 0, and hereinafter referred to as a " ⁇ direction" There is a specific configuration of the second plate flat surface portion 130a having a generally oval shape to which the guide object or the base is fixed, and a pair of two plates disposed on opposite sides of the second plate flat surface portion 130a. And a curvature skirt portion 130b.
- a rolling element rolling groove 131 having a curvature is also formed on each of the opposing inner side surfaces of the pair of curvature skirt portions 130b.
- the pair of rolling element rolling grooves 131 is opposed to the concave side of the curvature. It is arranged to do.
- a rolling element rolling groove 131 is used to receive a rolling load from a plurality of balls 140 described later. Also, between the second plate 130 and the object to be guided or the base Fixing is performed using a screw hole 132 formed in the second plate flat surface portion 130a.
- the intermediate member 120 is a member installed so as to be sandwiched between the first plate 110 and the second plate 130.
- the intermediate member 120 has a generally oval outline, and rolling element rolling grooves 121 are formed on the four sides forming the outer periphery.
- rolling element rolling grooves 121 are formed on the four sides forming the outer periphery.
- two rolling element rolling grooves 121a formed in the X direction are disposed opposite to the pair of rolling element rolling grooves 111 of the first plate 110, and in the ⁇ direction.
- the two rolling element rolling grooves 121b having two curvatures are formed so as to face the pair of rolling element rolling grooves 131 included in the second plate 130.
- a pair of rolling element rolling paths extending in the X direction are formed by the two rolling element rolling grooves 121a formed in the X direction and the pair of rolling element rolling grooves 111 included in the first plate 110. Become.
- a pair of rolling member rolling grooves 121b having two curvatures formed in the ⁇ direction and a pair of rolling member rolling grooves 131 having a pair of curvatures included in the second plate 130 are curved and extended in the ⁇ direction.
- the rolling element rolling path is formed.
- a plurality of balls 140 are installed so as to freely roll.
- the plurality of balls 140 are installed between the four rolling element rolling paths via the cage 141, and due to the installation effect of the cage 141, the aligned rolling of the plurality of balls 140 is always maintained. .
- the basic configuration of the guide table device according to the second embodiment has been described.
- the four sides of the intermediate member 120 are arranged.
- the four rolling element rolling grooves 121 provided are formed on the same plane. That is, in the conventional guide table device, the rolling element rolling grooves formed in the intermediate member are formed on different planes for the X direction and for the ⁇ direction, respectively.
- the load in the guide direction was not applied evenly, and more than two widths of the rolling element rolling groove were required.
- the intermediate member 120 since all the rolling element rolling grooves 121 are formed on the same plane, the applied load is averaged and the rolling element rolling grooves are A thickness of about one width is sufficient, and the device can be made compact.
- FIG. 7A is an external top view of the guide table device according to the second embodiment when the upward force is also viewed.
- 7B is a longitudinal sectional side view showing the CC section shown in FIG. 7A
- FIG. 7C is a longitudinal sectional side view showing the DD section shown in FIG. 7A.
- the first plate 110 and the second plate 130 according to the second embodiment are formed in the diagonal direction of the plate plane portions 110a and 130a.
- One access hole 113, 133 is formed.
- the screw hole 112 for screwing with the base or guide object (not shown) and the screw hole 132 for screwing with the guide object or base (not shown) are the access holes 113 and 133, respectively.
- the access hole 113 drilled in the first plate 110 and the access hole 133 drilled in the second plate 130 intersect at right angles when the first plate 110 and the second plate 130 are assembled. Be placed in! RU
- the intermediate member 120 positioned between the first plate 110 and the second plate 130 is formed as a hollow structure in which an opening 122 is formed in the central portion of a roughly oval shape. ing. That is, in the guide table device according to the second embodiment, the screw hole 112 on the first plate 110 side can be confirmed from the access hole 133 on the second plate 130 side. Mounting on the second plate 130 is achieved by inserting a screwdriver or other tool from the access hole 133 on the second plate 130 side and screwing a fastening means such as a bolt 150 into the screw hole 112 on the first plate 110 side. can do.
- the attachment to the guide object or base (not shown) This can be realized by inserting a tool such as a screwdriver from the access hole 113 on the plate 110 side and screwing a fastening means such as a bolt 152 into the screw hole 132 on the second plate 130 side.
- the access holes 113 and 133 may have a long hole shape as shown in Figs. 5 to 7C, or an access hole when the guide table device is assembled. It is possible to adopt a round hole shape or an oblong hole shape, etc., as long as the hole 113 and the screw hole 132, and the access hole 133 and the screw hole 112 can be arranged at positions that overlap each other in the vertical direction. It is.
- the heads 150a and 152a can function as a mechanical stopper, and the stroke in the X ⁇ direction can be achieved by arbitrarily changing the relationship between the heads 150a and 152a of the bolts 150 and 152 and the opening 122.
- this configuration has an X ⁇ To define the stroke range of the direction Since this also leads to the omission of parts, it is possible to contribute to the reduction of manufacturing costs by the effect of reducing the number of components.
- the first plate 110 and the second plate 130 are provided with rolling element regulating means 160 for regulating the rolling of the balls at the stroke ends of the rolling elements rolling grooves 111 and 131 provided in the first plate 110 and the second plate 130, respectively.
- FIG. 8 is an enlarged view of a main part for explaining the rolling element regulating means 160 according to the second embodiment.
- the rolling element restricting means 160 that is powerful includes spring pin insertion holes 115 and 135 formed at the stroke ends of the rolling element rolling grooves 111 and 131 provided in the first plate 110 and the second plate 130, respectively, and spring pin insertion. And spring pins 116 and 136 inserted into the holes 115 and 135.
- a plurality of balls 140 that are kept in alignment by being installed in the cage 141 may move to one side in the rolling element rolling path by repeatedly rolling in the X ⁇ direction. There is. If there is no means for restricting the ball 140 at the stroke end of the rolling element rolling grooves 111 and 131, the ball 140 is biased at the end of the rolling element rolling path, and in the worst case, the ball 140 also has the rolling element rolling path force. If it does not move smoothly, it may cause a situation. Therefore, the movement of the cage 141 is restricted by the spring pins 116, 136 installed so as to protrude from the rolling element rolling grooves 111, 131, and the balls 140
- the rollable range is set within a predetermined range.
- the spring pins 1 16, 13 6 and the spring pins are advantageous in that they do not receive a high load and do not require the accuracy of the mating holes.
- the structure of insertion holes 1 15, 135 was adopted.
- any rolling element regulating means may be used as long as it can regulate the movement of the cage 141.
- the straight line on the side where the rolling element rolling grooves 1 1 1 and 131 are formed in the first plate 110 and the second plate 130, the straight line on the side where the rolling element rolling grooves 1 1 1 and 131 are formed.
- the length is ⁇ and the straight length of the side without the rolling element rolling grooves 1 1 1 and 131 is
- the intermediate member 120 is configured as a member having a substantially oval outline, but the rolling element rolling groove 1 1 1 and the second plate included in the first plate 110 are included. Any shape may be used as long as it has rolling element rolling grooves 121 facing the rolling element rolling grooves 131 having 130 at four sides on the four sides. The shape is not limited.
- the four rolling element rolling grooves 121 provided on the four sides of the intermediate member 120 are formed on the same plane in order to make the device compact.
- the configuration of being formed on top was adopted.
- the configuration of the intermediate member 120 can be changed according to the environment where the guide table device is installed, and the X direction in which the intermediate member 120 is arranged to face the rolling element rolling groove 1 1 1 of the first plate 110.
- Rolling element rolling groove 121a And the rolling element rolling groove 12 lb in the ⁇ direction arranged opposite to the rolling element rolling groove 131 of the second plate 130 and the force intermediate member 120 are not installed on the same plane, but are installed separately on the top and bottom! good.
- FIG. 9 is an external perspective view showing an overall outline of the guide table device according to the third embodiment.
- FIG. 10 is an exploded perspective view for explaining the components of the guide table device according to the third embodiment.
- the guide table device according to the third embodiment includes a lower plate 210, an intermediate member 220, an upper plate 230, and a plurality of balls 240 as main components.
- the lower plate 210 is a member including a pair of rolling element rolling grooves 211 formed in a first direction (a direction indicated by a symbol X, hereinafter referred to as "X direction").
- the specific configuration of the lower plate 210 is such that a rectangular lower plate plane portion 210a and a lower plate plane portion 210a are erected upward from two sides extending in the X direction among the opposing two sides.
- a pair of lower skirts 210b is a member that can be fixedly installed to a base such as a bed or a column, which serves as an installation reference for the guide table device, and includes a screw hole 212 for that purpose.
- the pair of lower skirt portions 210b is a member provided with rolling element rolling grooves 211 on each of the opposed inner surfaces, and can receive a rolling load of a plurality of 240 balls described later! /,
- the specific configuration of the lower plate 210 is such that a rectangular lower plate plane portion 210a and a lower plate plane portion 210a
- the upper plate 230 is a member formed in the same shape and the same size as the lower plate 210, and is used in a state where the lower plate 210 is turned over as it is. That is, the upper plate 230 is a member including a pair of rolling element rolling grooves 231 formed in a second direction (a direction indicated by a symbol Y, hereinafter referred to as “Y direction”).
- a typical configuration is a rectangular upper plate plane portion 230a to which a guide object is fixed, and two opposite sides of the upper plate plane portion 230a, and a lower skirt portion 210b of the lower plate 210
- a two-side force extending in a direction perpendicular to the two sides to be installed (that is, the Y direction) is also provided with a pair of upper skirt portions 230b that hang downward.
- a groove 231 is formed, and a rolling load from a plurality of balls 240 to be described later can be received by the powerful rolling element rolling groove 231.
- the upper plate 230 and the guide object are fixed using the screw holes 232 drilled in the upper plate flat surface portion 230a.
- the intermediate member 220 is a member installed so as to be sandwiched between the lower plate 210 and the upper plate 230.
- the intermediate member 220 has a rectangular outer shape, and rolling element rolling grooves 221 are formed on the four sides forming the outer periphery.
- rolling element rolling grooves 221 formed in the X direction are disposed opposite to the pair of rolling element rolling grooves 211 of the lower plate 210, and are in the Y direction.
- the two rolling element rolling grooves 221 formed on the upper plate 230 are opposed to the pair of rolling element rolling grooves 231 of the upper plate 230.
- the two rolling element rolling grooves 221 formed in the X direction and the pair of rolling element rolling grooves 211 included in the lower plate 210 form a pair of rolling element rolling paths extending in the X direction.
- a pair of rolling element rolling paths extending in the Y direction is formed by the two rolling element rolling grooves 221 formed in the Y direction and the pair of rolling element rolling grooves 231 included in the upper plate 230.
- a plurality of balls 240 are installed between the four rolling element rolling paths.
- the plurality of balls 240 are installed between the four rolling element rolling paths via the cage 241, and the aligned rolling of the plurality of balls 240 is always maintained by the installation effect of the cage 241.
- the intermediate member 220 has a plurality of openings formed in a rectangular central portion.
- the bearing 270 is fitted and installed in the rotation opening 222a located in the center, whereby the entire guide table device can be moved in the ⁇ direction.
- the member that is fitted into the rotation opening 222a to realize the movement of the guide table device in the ⁇ direction is not limited to the bearing 270, but a machine capable of realizing a rotational motion such as a cross roller ring. Elements can be adopted.
- the access opening 222b drilled around the rotation opening 222a is provided to conduct the fastening means for fixing the guide table device and the base or the object in the plan. .
- the guide table device according to the third embodiment has been described above.
- the four rolling element rolling grooves 221 provided on the four sides of the intermediate member 220 are formed on the same plane. That is, in the conventional guide table device, the rolling element rolling grooves formed in the intermediate member are formed on different planes for the X direction and the Y direction, respectively. However, the load in the guide direction was not applied evenly, and more than two widths of the rolling element rolling groove were required.
- the intermediate member 220 since all the rolling element rolling grooves 221 are formed on the same plane, the applied load is averaged and the rolling element rolling grooves are A thickness of about one width is sufficient, and the device can be made compact.
- FIG. 11A is an external top view of the guide table device according to the third embodiment when the upward force is also viewed.
- 11B is a longitudinal sectional side view showing the EE section shown in FIG. 11A
- FIG. 11C is a longitudinal sectional side view showing the FF section shown in FIG. 11A.
- the lower plate 210 and the upper plate 230 according to the third embodiment are formed in the diagonal direction of the plate plane portions 210a and 230a.
- Two access holes 213 and 233 are formed respectively.
- the screw hole 212 for screwing with the base (not shown) and the screw hole 232 for screwing with the guide object (not shown) are on both sides of the access holes 213 and 233, respectively. It is drilled on a diagonal line that intersects with the direction in which 213 and 233 are formed at right angles.
- the access hole 213 drilled in the lower plate 210 and the access hole 233 drilled in the upper plate 230 are perpendicular to each other when the lower plate 210 and the upper plate 230 are assembled. Arranged.
- the rotation opening 222a described above is formed at the rectangular central portion.
- the bearing 270 is fitted and installed in the rotation opening 222a, so that the entire apparatus can move in the ⁇ direction.
- an access drilled around the rotation opening 222a The opening 222b is provided for conducting the fastening means. Therefore, in the guide table device according to the third embodiment, the access hole 233 force on the upper plate 230 side can also confirm the screw hole 212 on the lower plate 210 side. This can be realized by inserting a tool such as a screwdriver from the access hole 233 on the plate 230 side and accumulating fastening means such as a bolt 250 in the screw hole 212 on the lower plate 210 side.
- the shape of the access holes 213 and 233 is not limited to the long hole shape as shown in Figs. 9 to 11C, but when the assembly of the guide table device is completed, the access hole 213 and the screw hole 232 are accessed. As long as the hole 233 and the screw hole 212 can be arranged at the positions where they overlap each other in the vertical direction, any shape such as a round hole shape or an oval hole shape can be adopted. As for the hole shape, it is possible to adopt various forms for the access opening 222b.
- the access hole 233 on the upper plate 230 side, the screw hole 212 on the lower plate 210 side, and the lower side Any shape can be used as long as the access hole 213 on the plate 210 side and the screw hole 232 on the upper plate 230 side can be accessed.
- the head 250a of the Bonoleto 250 screwed into the screw hole 212 on the lower plate 210 side and the head 252a of the bolt 252 screwed into the screw hole 232 on the upper plate 230 side are just Since it contacts the inner wall surface of the access opening 222b formed in the intermediate member 220, it also serves to define the stroke range in the XY direction. That is, the heads 250a and 252a of the bolts 250 and 2 52 can exhibit a function as a mechanical stop.
- the stroke range in the XY direction can be arbitrarily defined, and the intermediate member 220 can be More than necessary for lower plate 210 and upper plate 230 It is possible to prevent the movement operation.
- this configuration also eliminates the need for a member for defining the stroke range in the XY directions, so that it is possible to contribute to a reduction in manufacturing cost due to the effect of reducing the number of components.
- FIG. 12 is an enlarged view of a main part for explaining the rolling element restricting means 260 according to the third embodiment.
- the rolling element restricting means 260 is a spring pin insertion hole 215, 235 formed at the end of the stroke of the rolling element rolling grooves 211, 231 provided in the lower plate 210 and the upper plate 230, respectively.
- the spring pin insertion holes 215 and 2 35 are inserted into the spring pins 216 and 236.
- a plurality of balls 240 that are maintained in alignment by being installed in the cage 241 may move to one side of the rolling element rolling path by repeatedly rolling in the XY directions. is there. If there is no ball 240 restricting means at the stroke end of the rolling element rolling grooves 211 and 231, the ball 240 is biased at the end of the rolling element rolling path. In the worst case, the ball 240 also has the rolling element rolling path force. If it does not move smoothly, it may cause a situation. Therefore, the movement of the cage 241 is restricted by spring pins 216, 236 installed so as to protrude from the rolling element rolling grooves 211, 231 so that the rollable range of the ball 240 is set within a predetermined range. It is.
- the spring pins 216, 23 6 and the spring pin are inserted because they do not receive a high load and do not require the accuracy of the mating hole.
- the configuration of holes 215 and 235 was adopted.
- any rolling element regulating means may be used as long as the movement of the cage 241 can be regulated.
- the length of the side where the rolling element rolling grooves 211, 231 are formed is ⁇
- the length of the side without the rolling element rolling grooves 211 and 231 is set to
- the difference between the values of ⁇ and j8 directly becomes the stroke distance in the XY direction.
- the intermediate member 220 formed in a square shape is illustrated and described as the intermediate member 220 having a rectangular outer shape, but this shape may be a rectangle.
- the shape may be sufficient. That is, the term “rectangular” described in this specification is defined as including a square, a rectangle, and a diamond.
- a force adopting a configuration in which the bearing 270 is installed on the intermediate member 220 may be formed with an opening having a circular arc shape only in a part thereof to realize a rotational motion within a limited range. That is, the opening formed in the intermediate member 220 may be formed so that at least a part thereof has an arc shape. It will be apparent from the appended claims that the embodiments added with such changes or improvements can also be included in the technical scope of the present invention.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007533220A JP4813493B2 (ja) | 2005-08-31 | 2006-08-28 | ガイドテーブル装置 |
US12/064,824 US7887239B2 (en) | 2005-08-31 | 2006-08-28 | Guide table device |
CN2006800406729A CN101300429B (zh) | 2005-08-31 | 2006-08-28 | 引导台装置 |
DE112006002318.7T DE112006002318B4 (de) | 2005-08-31 | 2006-08-28 | Führungstischvorrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005252365 | 2005-08-31 | ||
JP2005-252365 | 2005-08-31 | ||
JP2005-288699 | 2005-09-30 | ||
JP2005288699 | 2005-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007026632A1 true WO2007026632A1 (ja) | 2007-03-08 |
Family
ID=37808724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/316838 WO2007026632A1 (ja) | 2005-08-31 | 2006-08-28 | ガイドテーブル装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7887239B2 (ja) |
JP (1) | JP4813493B2 (ja) |
CN (2) | CN101705969B (ja) |
DE (1) | DE112006002318B4 (ja) |
WO (1) | WO2007026632A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012217241A1 (de) * | 2012-09-25 | 2014-03-27 | Schaeffler Technologies Gmbh & Co. Kg | Lagerelement für zwei Raumrichtungen |
US10272506B2 (en) * | 2015-12-04 | 2019-04-30 | Nanjing Chervon Industry Co., Ltd. | Reciprocating tool with linear guides |
CN108468714A (zh) * | 2018-04-16 | 2018-08-31 | 盐城工学院 | 滚滑复合导轨 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0567433U (ja) * | 1992-02-21 | 1993-09-07 | エヌティエヌ株式会社 | Xyテーブル |
JPH09243766A (ja) * | 1996-03-05 | 1997-09-19 | Dainippon Screen Mfg Co Ltd | アライメントステージ |
JPH09266660A (ja) * | 1996-03-28 | 1997-10-07 | Nippon Thompson Co Ltd | リニア電磁アクチュエータを用いたxyテーブル |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1428275A (en) * | 1921-09-06 | 1922-09-05 | Gust J Dahl | Knockdown revolving table |
US3270423A (en) * | 1963-09-30 | 1966-09-06 | Sheffield Corp | Positioning device |
US3860307A (en) * | 1973-03-12 | 1975-01-14 | Karl Fostel | Bedside table |
JPS5551119A (en) * | 1978-10-12 | 1980-04-14 | Toshiba Corp | Linear bearing device |
JPS6014618A (ja) * | 1983-07-04 | 1985-01-25 | Hiroshi Teramachi | クロス直線ベアリングユニツト |
JPH01240246A (ja) * | 1988-03-22 | 1989-09-25 | Kazuya Hirose | テーブルの縦横移動機構 |
JPH01242989A (ja) * | 1988-03-24 | 1989-09-27 | Kazuya Hirose | テーブルの縦横移動旋回機構 |
JP3044500B2 (ja) | 1990-09-28 | 2000-05-22 | 東京応化工業株式会社 | ブラックマトリックスの形成方法 |
JP2934536B2 (ja) | 1991-07-12 | 1999-08-16 | 日本トムソン株式会社 | 薄肉鋼板製xyテーブル |
JPH0849756A (ja) * | 1994-06-24 | 1996-02-20 | Sozoan:Kk | 回転運動機構 |
JPH11280761A (ja) | 1998-03-26 | 1999-10-15 | Nippon Thompson Co Ltd | 直動転がり案内ユニット及びそれを用いたxyテーブル装置 |
US6463664B1 (en) * | 2000-10-19 | 2002-10-15 | Sandia Corporation | Multi-axis planar slide system |
JP4560235B2 (ja) * | 2001-05-16 | 2010-10-13 | 日本トムソン株式会社 | 角度調整テーブル装置 |
US7240580B2 (en) * | 2004-11-02 | 2007-07-10 | Everman Michael R | Single degree of freedom axis positioner |
-
2006
- 2006-08-28 WO PCT/JP2006/316838 patent/WO2007026632A1/ja active Application Filing
- 2006-08-28 DE DE112006002318.7T patent/DE112006002318B4/de not_active Expired - Fee Related
- 2006-08-28 US US12/064,824 patent/US7887239B2/en not_active Expired - Fee Related
- 2006-08-28 CN CN2009102099504A patent/CN101705969B/zh not_active Expired - Fee Related
- 2006-08-28 JP JP2007533220A patent/JP4813493B2/ja not_active Expired - Fee Related
- 2006-08-28 CN CN2006800406729A patent/CN101300429B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0567433U (ja) * | 1992-02-21 | 1993-09-07 | エヌティエヌ株式会社 | Xyテーブル |
JPH09243766A (ja) * | 1996-03-05 | 1997-09-19 | Dainippon Screen Mfg Co Ltd | アライメントステージ |
JPH09266660A (ja) * | 1996-03-28 | 1997-10-07 | Nippon Thompson Co Ltd | リニア電磁アクチュエータを用いたxyテーブル |
Also Published As
Publication number | Publication date |
---|---|
US7887239B2 (en) | 2011-02-15 |
US20090263054A1 (en) | 2009-10-22 |
CN101705969A (zh) | 2010-05-12 |
JPWO2007026632A1 (ja) | 2009-03-05 |
CN101705969B (zh) | 2012-01-11 |
DE112006002318B4 (de) | 2016-03-31 |
CN101300429B (zh) | 2010-07-28 |
JP4813493B2 (ja) | 2011-11-09 |
CN101300429A (zh) | 2008-11-05 |
DE112006002318T5 (de) | 2008-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4890596B2 (ja) | テレスコピックカバー | |
KR20120071087A (ko) | 직선운동 안내 유닛 | |
US5460452A (en) | Linear motion rolling guide unit | |
US4527842A (en) | Construction for adjusting clearance in linear slide bearing | |
DE60209452T2 (de) | Linearführungseinheit mit Trennkörpern zwischen jedem angrenzendem Wälzkörper | |
WO2007026632A1 (ja) | ガイドテーブル装置 | |
JPWO2008038472A1 (ja) | スライドレールユニット | |
JP2541519Y2 (ja) | 直動転がり案内ユニット | |
JP5428290B2 (ja) | ボールねじ一体型直動案内ユニット | |
GB2141795A (en) | Linear slide roller bearing unit | |
KR20110039654A (ko) | 직선운동 안내 유닛 | |
JP4356045B2 (ja) | 直線運動ガイド | |
US5820269A (en) | Roller-type linear guide apparatus | |
US20070003172A1 (en) | Linear guiding device | |
US5562346A (en) | Linear ball guide assembly having high radial load capacity | |
JP3226315U (ja) | リニアスライド | |
US5483897A (en) | Track and rail-form slider combinations | |
JP7251101B2 (ja) | 直動案内装置 | |
US5324118A (en) | Linear motion rolling guide unit | |
JP2023013009A (ja) | スライドレールユニット | |
GB2142097A (en) | Linear slide roller bearing unit | |
JP2002000376A (ja) | スライドレール | |
JP4110056B2 (ja) | 免震装置 | |
JPH05126148A (ja) | 直動転がり案内ユニツト | |
CN217812979U (zh) | 一种移动机构及升降门 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680040672.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007533220 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12064824 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120060023187 Country of ref document: DE |
|
RET | De translation (de og part 6b) |
Ref document number: 112006002318 Country of ref document: DE Date of ref document: 20080710 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06796872 Country of ref document: EP Kind code of ref document: A1 |