WO2015174174A1 - ガイド機構及びその製造方法 - Google Patents
ガイド機構及びその製造方法 Download PDFInfo
- Publication number
- WO2015174174A1 WO2015174174A1 PCT/JP2015/061054 JP2015061054W WO2015174174A1 WO 2015174174 A1 WO2015174174 A1 WO 2015174174A1 JP 2015061054 W JP2015061054 W JP 2015061054W WO 2015174174 A1 WO2015174174 A1 WO 2015174174A1
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- WO
- WIPO (PCT)
- Prior art keywords
- groove
- guide
- stopper
- guide mechanism
- slide
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims description 9
- 238000005304 joining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 10
- 238000010079 rubber tapping Methods 0.000 description 9
- 238000012856 packing Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
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- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/004—Welding of a small piece to a great or broad piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/08—Seam welding not restricted to one of the preceding subgroups
- B23K11/087—Seam welding not restricted to one of the preceding subgroups for rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- 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
- F16C29/004—Fixing of a carriage or rail, e.g. rigid mounting to a support structure or a movable part
-
- 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
- F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
-
- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/30—Material joints
- F16C2226/36—Material joints by welding
-
- 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
- F16C29/041—Ball or roller bearings having rollers crossed within a row
Definitions
- the present invention relates to a guide mechanism and a manufacturing method thereof.
- a guide mechanism is used as a mechanism for smoothly guiding the relative displacement of two elements that are linearly displaceable or for accurately guiding the relative displacement.
- the guide mechanism is applied to various machines, and an example of the application is a fluid pressure cylinder such as a slide actuator.
- a hydraulic cylinder disclosed in Japanese Utility Model Laid-Open No. 5-92505 includes a cylinder body, a piston slidable in the axial direction within the cylinder body, and a piston rod fixed to the piston and having one end protruding from the cylinder body. And an end plate fixed to one end of the piston rod.
- the hydraulic cylinder disclosed in Japanese Utility Model Laid-Open No. 5-92505 includes a guide rail fixed to the cylinder body, a slide tail bull that can slide with respect to the guide rail, a guide member fixed to the slide table, and a guide rail. And a plurality of rolling elements (roller bearings) disposed in a guide groove formed between the guide member and the guide member.
- a plate-like stopper is fixed to one end surface of the guide member with a screw to prevent the rolling element from being detached from the guide groove.
- the present invention has been made in consideration of such problems, and in the guide mechanism having a structure for preventing the rolling element from being detached from the guide groove, the guide can reduce the processing man-hours and the assembly man-hours. It is an object to provide a mechanism and a manufacturing method thereof.
- a guide mechanism of the present invention has a guide member having a linear first groove, and is slidable linearly with respect to the guide member, and faces the first groove.
- a slide member having a linear second groove, and a plurality of rolling elements arranged in a guide groove constituted by the first groove and the second groove, the first groove or the A stopper that prevents the rolling element from being detached from the guide groove is fixed to the second groove portion by welding.
- the stopper is fixed not by screws but by welding. For this reason, in the process of attaching the stopper, tapping for forming a screw hole is unnecessary and screwing work is also unnecessary. Furthermore, the stopper can be fixed at an arbitrary position of the first groove portion or the second groove portion. As a result, it is possible to reduce the processing man-hours and assembly man-hours for providing a structure that prevents the rolling elements from being detached from the guide grooves.
- the slide member may be a plate-like member, and the stopper may be disposed in the second groove portion.
- the slide member is made of a thin member, tapping is difficult or impossible.
- the stopper is fixed by welding, the thin slide member can be used.
- the slide member includes a flat base portion and side portions protruding in the thickness direction of the base portion from both ends in the width direction of the base portion, and each of the side portions.
- the second groove may be provided on the inner surface.
- the method for manufacturing a guide mechanism includes a guide member having a linear first groove portion, a linear member that is slidable linearly with respect to the guide member, and is opposed to the first groove portion.
- a slide member having a second groove part, and a plurality of rolling elements arranged in a guide groove constituted by the first groove part and the second groove part, the method for manufacturing a guide mechanism, A welding step of joining the first groove portion or the second groove portion and the stopper by resistance welding in a state where the stopper is pressed against the first groove portion or the second groove portion.
- the stopper is attached by welding instead of a screw, in the step of attaching the stopper, tapping for forming a screw hole is unnecessary and screw fixing work is also unnecessary. As a result, the processing man-hours and assembly man-hours can be reduced. Moreover, since it joins by resistance welding, the attachment operation
- the guide member or the slide member and the stopper may be sandwiched between electrodes and energized. Thereby, the operation of attaching the stopper by welding can be performed efficiently.
- the spherical stopper may be joined in the welding step.
- the guide mechanism and the manufacturing method thereof it is possible to reduce the man-hours and the assembly man-hours in the guide mechanism having a structure for preventing the rolling elements from being detached from the guide grooves.
- FIG. 1 is a perspective view of a slide actuator provided with a guide mechanism according to the first embodiment of the present invention.
- FIG. 2 is a longitudinal sectional view of the slide actuator shown in FIG.
- FIG. 3 is a cross-sectional view of the slide actuator shown in FIG.
- FIG. 4 is an exploded perspective view of the guide mechanism.
- FIG. 5 is a partially cutaway plan view of the slide member.
- FIG. 6A is a first explanatory diagram of a stopper welding method
- FIG. 6B is a second explanatory diagram of the stopper welding method
- FIG. 6C is a third explanatory diagram of a stopper welding method.
- FIG. 7 is a perspective view of a guide member according to a modification.
- FIG. 7 is a perspective view of a guide member according to a modification.
- FIG. 8 is a perspective view of a slide actuator provided with a guide mechanism according to the second embodiment of the present invention.
- FIG. 9 is a longitudinal sectional view of the slide actuator shown in FIG.
- FIG. 10 is a cross-sectional view of the slide actuator shown in FIG.
- FIG. 11 is a cross-sectional view taken along line XI-XI in FIG.
- a slide actuator is given as an application example of the guide mechanism.
- the scope of application of the present invention is not limited to this, and the present invention can be applied to various devices including a movable section that can move linearly.
- FIG. 1 is a perspective view of a slide actuator 12 including a guide mechanism 10 according to the first embodiment of the present invention.
- FIG. 2 is a longitudinal sectional view of the slide actuator 12.
- FIG. 3 is a cross-sectional view of the slide actuator 12.
- the slide actuator 12 includes an actuator main body 14 and a guide mechanism 10 attached to the actuator main body 14, and is used, for example, as a workpiece transfer means.
- the actuator body 14 includes a cylinder body 16 in which a cylinder hole 17 is formed, a piston 18 that is slidably movable in the axial direction in the cylinder hole 17, and a piston 18 at one end. And an end plate 24 connected to the piston rod 20 via a fixing mechanism 22 outside the cylinder body 16.
- the cylinder hole 17 formed in the cylinder body 16 penetrates the cylinder body 16 in the axial direction (X direction in the figure).
- a plate-like head cover 26 is airtightly attached to one end portion (end portion on the X1 side) of the cylinder hole 17 so that the one end portion 17a of the cylinder hole 17 is closed.
- a first pressure chamber 31 is formed between the piston 18 and the head cover 26, and a second pressure chamber 32 is formed between the piston 18 and the rod cover 28.
- a first port 41 and a second port 42 through which pressure fluid (gas or liquid) is supplied and discharged are provided in the axial direction of the cylinder body 16. It is formed to be orthogonal.
- the first port 41 and the second port 42 are connected to, for example, a flow path switching device that switches the supply state of the pressure fluid via a pipe (not shown). Then, the pressure fluid is selectively supplied to the first port 41 or the second port 42, whereby the piston 18 and the piston rod 20 are driven in the axial direction.
- the first port 41 communicates with the first pressure chamber 31 via the first communication passage 33
- the second port 42 communicates with the second pressure chamber 32 via the second communication passage 34.
- the pressure fluid supplied to the first port 41 is introduced into the cylinder hole 17 (first pressure chamber 31) via the first communication path 33.
- the pressure fluid supplied to the second port 42 is introduced into the cylinder hole 17 (second pressure chamber 32) via the second communication path 34.
- sensor mounting grooves 30 extending along the axial direction are formed on the respective side surfaces of both sides of the cylinder body 16.
- a magnetic sensor (not shown) can be mounted in the sensor mounting groove 30.
- two sensor mounting grooves 30 are formed on each side surface of the cylinder body 16, but one sensor mounting groove 30 may be formed on each side surface.
- the cylinder body 16 is provided with a plurality (two in the illustrated example) of attachment holes 29 penetratingly formed along the axial direction.
- a bolt (not shown) inserted through the attachment hole 29
- the cylinder body 16 is attached to an attachment portion (not shown), so that the slide actuator 12 is fixed to the attachment portion.
- the rod cover 28 shown in FIG. 2 is an annular member inserted from the other end 17 b side of the cylinder hole 17, and the inside of the cylinder hole 17 by the locking ring 36 engaged with the inner peripheral surface of the cylinder hole 17. Fixed to. An annular groove 38 is formed on the outer peripheral surface of the rod cover 28, and a seal ring 40 is attached to the annular groove 38. The seal ring 40 prevents leakage of pressure fluid to the outside through between the rod cover 28 and the cylinder body 16 (inner peripheral surface of the cylinder hole 17).
- a rod hole 44 is formed through the center of the rod cover 28 in the axial direction, and the piston rod 20 is inserted through the rod hole 44.
- An annular groove 46 is formed on the inner peripheral surface of the rod cover 28, and an annular packing 48 is attached to the annular groove 46. The packing 48 prevents leakage of pressurized fluid to the outside through the rod cover 28 and the piston rod 20.
- a damper 50 that functions as a buffer means made of an elastic member is fixed to the rod cover 28 on the side facing the piston 18 (second pressure chamber 32 side).
- the damper 50 reduces the impact caused by the collision between the rod cover 28 and the piston 18 when the piston 18 advances.
- the piston 18 is a hollow member having a rod hole 52, and is fixed to one end side of the piston 18 by appropriate fixing means such as caulking or bolts.
- An annular magnet groove 54 is formed on the outer periphery of the piston 18, and a magnet 56 is attached to the magnet groove 54.
- annular groove 58 is formed in the outer peripheral portion of the piston 18, and an annular packing 60 is attached to the annular groove 58.
- the packing 60 prevents leakage of pressurized fluid to the outside through between the piston 18 and the cylinder body 16 (inner peripheral surface of the cylinder hole 17).
- the magnet 56 and the packing 60 are mounted in separate grooves (magnet groove 54 and annular groove 58) formed at intervals in the axial direction. However, the magnet 56 and the packing 60 are integrated. The integrated magnet 56 and packing 60 may be mounted in a common mounting groove.
- a damper 62 that functions as a buffer means made of an elastic member is fixed to the piston 18 on the side facing the head cover 26.
- the damper 62 reduces the impact caused by the collision between the head cover 26 and the piston 18 when the piston 18 is retracted.
- the end plate 24 is fixed to the other end of the piston rod 20 via the fixing mechanism 22.
- the end plate 24 is provided with a stepped hole portion 64 penetrating in the axial direction.
- the fixing mechanism 22 includes a hollow cylindrical fixing member 66 that is inserted into the hole portion 64, and a bolt 68 that is inserted into the fixing member 66 and screwed into the other end portion of the piston rod 20.
- a spacer member 70 is interposed between the fixing member 66 and the piston rod 20.
- the end plate 24 is fixed vertically to the piston 18 by being sandwiched between the bolt 68 and the spacer member 70 under the fastening action of the bolt 68.
- FIG. 4 is an exploded perspective view of the guide mechanism 10.
- the guide mechanism 10 includes a guide member 72 attached to the first member, a slide member 74 attached to a second member that can be displaced relative to the first member, and the guide member 72 and the slide member 74. And a plurality of rolling elements 76 arranged to be able to roll.
- the first member is a cylinder body 16, and the second member is an end plate 24.
- the illustrated guide member 72 is a member that extends along the axial direction (X direction), is wide and flat, and is substantially rectangular (rectangular) in plan view.
- the guide member 72 may be an elongated member.
- a first groove portion 81 extending linearly along the axial direction is provided on each side surface 72a on both sides in the width direction of the guide member 72.
- the illustrated first groove portion 81 is a semicircular (arc-shaped) groove. Both ends in the extending direction of the first groove portion 81 are opened at both end surfaces 72b in the length direction (X direction) of the guide member 72.
- a stopper plate 78 that prevents the rolling element 76 from being detached from the first groove 81 is fixed to each end surface 72 b of the guide member 72 by screws 79.
- Each stopper plate 78 is a plate-like member configured in substantially the same shape and size as each end surface 72 b of the guide member 72, and closes the end portion of the first groove portion 81 on both sides in the width direction of the guide member 72. .
- the guide member 72 is provided with a plurality of (two in the illustrated example) stepped bolt holes 84 penetrating in the thickness direction of the guide member 72 at intervals.
- the guide member 72 is fixed to the cylinder body 16 by the bolt 96 being inserted into the bolt hole 84 and screwed into the cylinder body 16.
- the illustrated slide member 74 is a wide and flat member extending in the axial direction (X direction) and having a substantially rectangular shape in plan view, and is slidable in the axial direction with respect to the guide member 72.
- the slide member 74 is provided with a second groove portion 82 that faces the first groove portion 81 provided in the guide member 72 and extends linearly along the axial direction.
- the illustrated second groove 82 is a semicircular (arc-shaped) groove. Both ends in the extending direction of the second groove portion 82 are opened at both end surfaces in the length direction (X direction) of the slide member 74.
- the slide member 74 consists of a plate-shaped member. Specifically, the slide member 74 is a flat plate-like base portion 86 that faces the upper surface 72 c of the guide member 72, and the thickness direction of the base portion 86 from both ends in the width direction of the base portion 86 ( A pair of side portions 88 projecting downward in FIG. 4 and extending in parallel with each other along the axial direction (X direction).
- Each side portion 88 faces each side surface 72 a in the width direction of the guide member 72.
- the second groove portion 82 described above is provided on each inner surface of the pair of side portions 88 (surfaces of the side portions 88 facing each other).
- the second groove portion 82 can be formed by grinding the inner surface of the side portion 88, for example.
- the slide member 74 is made of a metal material.
- the plate-like member as the material of the slide member 74 is subjected to a bending process and formed into a shape having the base portion 86 and the pair of side portions 88 described above, and then heat treatment ( (Quenching) may be performed.
- the metal material that can be quenched include JIS SUS440.
- a hole portion 90 penetrating in the thickness direction of the base portion 86 is provided, and a bolt 92 is inserted into the hole portion 90 and screwed into the end plate 24.
- the slide member 74 is fixed to the end plate 24 vertically.
- the base portion 86 is provided with a plurality of (two in the drawing) hole portions 94 penetrating in the thickness direction at the same interval as the bolt holes 84 provided in the guide member 72. .
- the hole 94 has a size that allows the bolt 96 (see FIG. 3) to pass through.
- the plurality of rolling elements 76 are arranged in the guide groove 98 constituted by the first groove portion 81 and the second groove portion 82.
- guide grooves 98 are disposed on the left and right sides of the guide mechanism 10.
- the rolling element 76 is not limited to a spherical shape as shown in the illustrated example, and may be configured in a cylindrical shape, for example.
- Examples of the constituent material of the rolling element 76 include stainless steel and carbon steel.
- a stopper 100 that prevents the rolling element 76 from being detached from the guide groove 98 is fixed to the second groove portion 82 by welding.
- the stopper 100 is disposed at a position on the X1 direction side of the rolling element 76 in the second groove portion 82, more specifically, near the end portion on the X1 direction side of the second groove portion 82. . Since such a stopper 100 is provided, when the slide member 74 is displaced in the X2 direction with respect to the guide member 72 from the end of the slide member 74 on the X1 direction side to the position where the guide member 72 protrudes, the rolling element By locking 76 with the stopper 100, the rolling element 76 is prevented from coming out of the guide groove 98.
- the guide member 72 does not protrude from the end portion on the X2 direction side of the slide member 74, so the position on the X2 direction side of the rolling element 76 in the second groove portion 82.
- the stopper 100 may not be provided. However, for example, when a configuration in which the guide member 72 protrudes from an end portion of the slide member 74 on the X2 direction side is employed, the position of the second groove portion 82 on the X2 direction side of the rolling element 76 is adopted. For example, as shown in FIG. 4, the stopper 100 may also be provided at a midway position of the second groove portion 82 (a position on the X1 direction side of the end portion of the second groove portion 82 on the X2 direction side).
- the shape of the stopper 100 (stopper material 101) before welding includes a spherical shape.
- the stopper material 101 may have a cylindrical shape (roller shape) or a linear shape such as a wire.
- the stopper material 101 is made of a metal material. For example, when JIS standard SUS304 is used, cracks after welding do not occur, which is preferable.
- the stopper material 101 is arranged at a predetermined position of the second groove 82 as shown in FIG. 6A.
- the slide member 74 (side part 88) and the stopper material 101 are sandwiched between the electrodes 102a and 102b facing each other and energized for a predetermined time. If it does so, the Joule heat
- the side surface of the stopper material 101 is flat and is substantially flush with the inner surface of the side portion 88.
- the stopper material 101 is solidified to obtain the stopper 100 welded to the second groove 82 as shown in FIG. 6C.
- the guide mechanism 10 and the manufacturing method thereof according to the present embodiment are basically configured as described above, and the operation and effect will be described below.
- the stopper 100 is fixed by welding instead of screws. For this reason, in the process of attaching the stopper 100, tapping for forming a screw hole in the member to which the stopper 100 is fixed (slide member 74 in this embodiment) is not necessary, and screwing work is also performed. It is unnecessary. As a result, it is possible to reduce the processing man-hours and assembly man-hours for providing a structure for preventing the rolling elements 76 from being detached from the guide grooves 98.
- the slide member 74 is a thin plate-like member, and the stopper 100 is disposed in the second groove portion 82.
- the slide member 74 is made of a thin member (for example, a plate-like member having a thickness of 1 mm or less to several millimeters), tapping is difficult or impossible, but a configuration in which the stopper 100 is fixed by welding is adopted.
- the thin slide member 74 can be used.
- the second groove 82 is formed by grinding, the oxide film at the time of heat treatment (quenching) of the slide member 74 is removed. For this reason, stable welding strength is obtained at the welded portion of the stopper 100.
- the stopper 100 is joined by resistance welding, so that the stopper 100 can be efficiently fixed to the second groove portion 82.
- the slide member 74 and the stopper 100 are energized while being pressed between the electrodes 102a and 102b, so that the stopper 100 can be efficiently attached by welding.
- the stopper 100 when the side surface of the stopper 100 is flat and is substantially flush with the inner surface of the side portion 88, the stopper 100 does not interfere with the guide member 72, and the slide member 74 slides relative to the guide member 72. It will not cause any trouble. Note that the stopper 100 may slightly protrude from the second groove portion 82 as long as the stopper 100 does not interfere with the guide member 72.
- the grinding process for forming the second groove portion 82 in the side portion 88 of the slide member 74 may be performed after heat treatment (quenching) of the slide member 74. In this way, since the oxide film generated during the heat treatment is removed by grinding, a stable joint strength can be obtained at the joint portion of the stopper 100.
- the stopper 100 is welded to the second groove portion 82 provided in the side portion 88 of the slide member 74, but the first groove portion 81 provided in the guide member 72 as shown in FIG. Also, the stopper 100 may be welded. Specifically, instead of the stopper plate 78 (FIG. 4) screwed to the guide member 72, the stopper 100 is welded to both ends in the extending direction of the first groove portion 81. In this case, the stopper 100 welded to the first groove portion 81 is subjected to resistance welding (see FIGS. 6A to 6C) using the electrodes 102a and 102b, similarly to the stopper 100 welded to the second groove portion 82. It can be joined to the first groove 81.
- the slide member 74 has a thickness that allows tapping to be easily performed, instead of welding the stopper 100 to the second groove 82, another stopper for preventing the rolling element 76 from being detached.
- the member may be fixed to the end face of the slide member 74 with screws, and the stopper 100 may be provided only in the first groove 81 by welding. Even in this case, the processing man-hours and assembly man-hours for providing the structure for preventing the rolling element 76 from being detached from the guide groove 98 can be reduced.
- FIG. 8 is a perspective view of the slide actuator 112 including the guide mechanism 110 according to the second embodiment of the present invention.
- FIG. 9 is a longitudinal sectional view of the slide actuator 112.
- FIG. 10 is a cross-sectional view of the slide actuator 112.
- FIG. 11 is a cross-sectional view taken along line XI-XI in FIG.
- the slide actuator 112 includes an actuator main body 114 and a guide mechanism 110 attached to the actuator main body 114, and is used as, for example, a workpiece transfer means.
- the actuator body 114 includes a cylinder body 116 having two cylinder holes 117a and 117b formed in parallel to each other, and 2 arranged so as to be reciprocally slidable in the axial direction in the cylinder holes 117a and 117b.
- a head cover 126 is airtightly attached to one end portion (end portion on the X1 side) of the cylinder holes 117a and 117b, so that one end portions of the cylinder holes 117a and 117b are closed.
- Rod covers 128a and 128b are airtightly attached to the other end portions (end portions on the X2 side) of the cylinder holes 117a and 117b, so that the other end portions of the cylinder holes 117a and 117b are closed. .
- first pressure chambers 131a and 131b are formed between the pistons 118a and 118b and the head covers 126a and 126b, and a second pressure chamber 132a is formed between the pistons 118a and 118b and the rod covers 128a and 128b. 132b are formed.
- the two first pressure chambers 131a and 131b communicate with each other via a communication path 133 formed in the cylinder body 116.
- the two second pressure chambers 132 a and 132 b communicate with each other via another communication passage 134 formed in the cylinder body 116.
- the pistons 118a and 118b are hollow members and are fixed to one end sides of the pistons 118a and 118b by appropriate fixing means such as caulking and bolts.
- a packing 155 and a magnet 156 are attached to the outer peripheral portions of the pistons 118a and 118b.
- the end plate 124 is connected to the piston rod 120a via a fixing mechanism 122 having a hollow cylindrical fixing member 166 and a bolt 168 inserted into the fixing member 166 and screwed into the other end of the piston rods 120a and 120b. , 120b is fixed to the other end.
- the guide mechanism 110 includes a guide member 172 attached to the first member, a slide member 174 attached to a second member that can be relatively displaced with respect to the first member, and the guide member 172 and the slide member 174. And a plurality of rolling elements 176 arranged so as to be capable of rolling.
- the first member is a cylinder body 116
- the second member is an end plate 124.
- the illustrated guide member 172 extends along the axial direction (X direction), is wide and flat, and is a substantially rectangular (rectangular) member in plan view.
- the guide member 172 may be an elongated member.
- the guide member 172 is fixed to the cylinder body 116 by a bolt 138 (see FIG. 10).
- the V-shaped first groove portion 181 extending linearly along the axial direction is provided on each side surface on both sides in the width direction of the guide member 172. Both ends of the first groove portion 181 in the extending direction are opened at both end surfaces in the length direction (X direction) of the guide member 172.
- the illustrated slide member 174 is a wide and flat member extending in the axial direction (X direction) and having a substantially rectangular shape in plan view, and is slidable in the axial direction with respect to the guide member 172.
- the slide member 174 includes a slide table 140 fixed to the end plate 124 and a pair of slide guides 142a and 142b that are attached to the slide table 140 and are parallel to each other.
- a recess 141 (see FIG. 10) is provided inside the slide table 140, and a pair of slide guides 142 a and 142 b are fixed to the recess 141 by bolts 146.
- Each slide guide 142a, 142b is provided with a V-shaped second groove portion 182 that extends linearly along the axial direction so as to face the first groove portion 181 provided in the guide member 172. Both ends in the extending direction of the second groove portion 182 are opened at both end surfaces in the length direction (X direction) of the slide member 174.
- the plurality of rolling elements 176 are arranged in a rectangular space (guide groove 198) constituted by the first groove part 181 and the second groove part 182.
- guide grooves 198 are disposed on the left and right sides of the guide mechanism 110, and each rolling element 176 has a cylindrical shape.
- the plurality of rolling elements 176 are alternately tilted by 90 °.
- a stopper 200 that prevents the rolling element 176 from detaching from the guide groove 198 is fixed to the first groove 181 provided in the guide member 172 by welding.
- the stopper 200 is disposed at a position on the X1 direction side and a position on the X2 direction side of the rolling element 176 in the first groove portion 181. More specifically, the stopper 200 is disposed in the vicinity of both end portions of the first groove portion 181. Since such a stopper 200 is provided, the rolling element 176 is prevented from coming out of the first groove 181.
- a stopper 202 that prevents the rolling element 176 from detaching from the guide groove 198 is fixed to the second groove portion 182 provided in the slide guides 142a and 142b of the slide member 174 by welding.
- the stopper 202 is disposed at a position on the X1 direction side and a position on the X2 direction side with respect to the rolling element 176 in the second groove portion 182. More specifically, the stopper 202 is disposed in the vicinity of both end portions of the second groove portion 182. Since such a stopper 202 is provided, the rolling element 176 is prevented from coming out of the second groove 182.
- the stoppers 200 and 202 can be welded to the guide member 172 and the slide guides 142a and 142b by a method similar to the welding method of the stopper 100 described above (see FIGS. 6A to 6C).
- the stoppers 200 and 202 are fixed by welding instead of screws. For this reason, the same effect as the guide mechanism 10 according to the first embodiment can be obtained. That is, in the process of attaching the stoppers 200 and 202, tapping for forming screw holes in the members to which the stoppers 200 and 202 are fixed (in the case of the present embodiment, the slide member 174 and the slide guides 142a and 142b) is performed. It is not necessary and screwing work is not necessary. As a result, it is possible to reduce the processing man-hours and assembly man-hours for providing a structure for preventing the rolling element 176 from being detached from the guide groove 198.
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- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Actuator (AREA)
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Abstract
Description
Claims (6)
- 直線状の第1の溝部(81、181)を有するガイド部材(72、172)と、
前記ガイド部材(72、172)に対して直線的にスライド可能であり、前記第1の溝部(81、181)に対向する直線状の第2の溝部(82、182)を有するスライド部材(74、174)と、
前記第1の溝部(81、181)と前記第2の溝部(82、182)によって構成される案内溝(98、198)に配置された複数の転動体(76、176)と、を備え、
前記第1の溝部(81、181)又は前記第2の溝部(82、182)には、前記案内溝(98、198)からの前記転動体(76、176)の離脱を阻止するストッパ(100、200、202)が溶接によって固定されている、
ことを特徴とするガイド機構(10、110)。 - 請求項1記載のガイド機構(10)において、
前記スライド部材(74)は板状部材であり、
前記ストッパ(100)は前記第2の溝部(82)に配置されている、
ことを特徴とするガイド機構(10)。 - 請求項2記載のガイド機構(10)において、
前記スライド部材(74)は、平板状のベース部(86)と、前記ベース部(86)の幅方向の両端から前記ベース部(86)の厚さ方向に突出するサイド部(88)とを有し、
前記サイド部(88)の各々の内面に前記第2の溝部(82)が設けられている、
ことを特徴とするガイド機構(10)。 - 直線状の第1の溝部(81、181)を有するガイド部材(72、172)と、
前記ガイド部材(72、172)に対して直線的にスライド可能であり、前記第1の溝部(81、181)に対向する直線状の第2の溝部(82、182)を有するスライド部材(74、174)と、
前記第1の溝部(81、181)と前記第2の溝部(82、182)によって構成される案内溝(98、198)に配置された複数の転動体(76、176)と、を備えたガイド機構(10、110)の製造方法であって、
前記第1の溝部(81、181)又は前記第2の溝部(82、182)にストッパ(100、200、202)を押し当てた状態で、前記第1の溝部(81、181)又は前記第2の溝部(82、182)と前記ストッパ(100、200、202)とを抵抗溶接により接合する溶接工程を含む、
ことを特徴とするガイド機構(10、110)の製造方法。 - 請求項4記載のガイド機構(10、110)の製造方法において、
前記溶接工程では、前記ガイド部材(72、172)又は前記スライド部材(74、174)と、前記ストッパ(100、200、202)とを電極(102a、102b)間で挟んで加圧した状態で通電する、
ことを特徴とするガイド機構(10、110)の製造方法。 - 請求項4記載のガイド機構(10、110)の製造方法において、
前記溶接工程では、球状の前記ストッパ(100、200、202)を接合する、
ことを特徴とするガイド機構(10、110)の製造方法。
Priority Applications (6)
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DE112015001794.1T DE112015001794B4 (de) | 2014-05-15 | 2015-04-09 | Führungsmechanismus und Verfahren zu dessen Herstellung |
CN201580025107.4A CN106460923B (zh) | 2014-05-15 | 2015-04-09 | 引导机构和用于制造该引导机构的方法 |
US15/307,915 US9989089B2 (en) | 2014-05-15 | 2015-04-09 | Guide mechanism and method for manufacturing same |
RU2016144403A RU2679384C2 (ru) | 2014-05-15 | 2015-04-09 | Направляющий механизм и способ его изготовления |
MX2016014795A MX2016014795A (es) | 2014-05-15 | 2015-04-09 | Mecanismo guia y metodo para fabricar el mismo. |
KR1020167035167A KR102266449B1 (ko) | 2014-05-15 | 2015-04-09 | 가이드 메커니즘 및 이를 제조하기 위한 방법 |
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JP2014101388A JP6252947B2 (ja) | 2014-05-15 | 2014-05-15 | ガイド機構及びその製造方法 |
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JP (1) | JP6252947B2 (ja) |
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DE112015003184T5 (de) * | 2014-07-09 | 2017-03-16 | Smc Corporation | Zylinderführungsmechanismus und Zylinder mit Führungsmechanismus |
CN114076151B (zh) * | 2020-08-14 | 2023-12-01 | 上银科技股份有限公司 | 用于线性滑轨的钳制滑块 |
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Also Published As
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CN106460923A (zh) | 2017-02-22 |
US9989089B2 (en) | 2018-06-05 |
JP2015218782A (ja) | 2015-12-07 |
TW201604429A (zh) | 2016-02-01 |
RU2679384C2 (ru) | 2019-02-07 |
RU2016144403A3 (ja) | 2018-07-12 |
DE112015001794B4 (de) | 2024-02-29 |
JP6252947B2 (ja) | 2017-12-27 |
MX2016014795A (es) | 2017-03-23 |
RU2016144403A (ru) | 2018-05-14 |
CN106460923B (zh) | 2019-09-13 |
TWI641767B (zh) | 2018-11-21 |
DE112015001794T5 (de) | 2017-01-05 |
US20170058950A1 (en) | 2017-03-02 |
KR102266449B1 (ko) | 2021-06-17 |
KR20170009913A (ko) | 2017-01-25 |
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