CN100538094C - Rolling guide device - Google Patents
Rolling guide device Download PDFInfo
- Publication number
- CN100538094C CN100538094C CNB2005800432080A CN200580043208A CN100538094C CN 100538094 C CN100538094 C CN 100538094C CN B2005800432080 A CNB2005800432080 A CN B2005800432080A CN 200580043208 A CN200580043208 A CN 200580043208A CN 100538094 C CN100538094 C CN 100538094C
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- Prior art keywords
- ball
- groove
- rail track
- moving block
- rolling
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
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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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
- F16C29/086—Seals being essentially U-shaped, e.g. for a U-shaped carriage
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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
- F16C29/001—Bearings for parts moving only linearly adjustable for alignment or positioning
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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
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
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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
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
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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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
- F16C29/088—Seals extending in the longitudinal direction of the carriage or bearing body
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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
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/0642—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention provides a kind of rolling guide device, it can possess the Infinite Cyclic road of ball easily on moving block, can simply and at an easy rate make by cutting down part count or work manhours.The moving block that moves back and forth along rail track possesses and is fixed with the block body that is mounted body, is installed in the position in the face of the ball rolling surface of above-mentioned rail track on the above-mentioned block body and forms the ball-recirculation plate on above-mentioned Infinite Cyclic road; On this ball-recirculation plate, be formed with at least and in opposite directions carrying straight-line groove of the rolling groove of rail track, parallel with this carrying straight-line groove and towards the open nothing carrying straight-line groove of rail track.And, on one side above-mentioned ball limit in the carrying straight-line groove of above-mentioned ball-recirculation plate on one side and the rolling groove of rail track between bearing load roll, roll under no loaded state Yi Bian in above-mentioned nothing carrying straight-line groove, join with rail track on one side.
Description
Technical field
The present invention relates to rolling guide device, this rolling guide device is by a plurality of ball assembling rail tracks and moving block, and can along rail track make be fixed on the above-mentioned moving block by the free to-and-fro motion of carrying object, The present invention be more particularly directed to such rolling guide device, in this rolling guide device, above-mentioned moving block has the Infinite Cyclic road of ball, while can make the ball Infinite Cyclic that moving block is moved continuously along rail track.
Background technique
In the worktable of work mechanism and the straight line guide portion of various feedways etc., often use rolling guide device, this rolling guide device makes the moving block of the movable body that is equipped with worktable etc. move continuously along rail track.In this rolling guide device, above-mentioned moving block is installed on the rail track by a plurality of balls, ball one side bearing load between moving block and orbit of guide rail rolls on one side, thus, the movable body of lift-launch on moving block is moved trippingly with extremely low resistance along rail track.In addition, on moving block, have the Infinite Cyclic road of ball, in this Infinite Cyclic road, circulate, above-mentioned moving block is uninterruptedly moved continuously along rail track by making ball.
On above-mentioned rail track, alongst form the rolling groove of ball, on the other hand, be formed with the carrying rolling groove relative with the ball rolling groove of rail track on above-mentioned moving block, the ball rolling groove by these rail track sides and the carrying rolling groove of moving block side form the carrying rolling path of ball.That is, ball contacts with the ball rolling groove of rail track side and the carrying rolling groove of moving block side, rolls while carry the load that acts between the two.In addition, on moving block, form nothing carrying rolling path abreast, and the two ends of this nothing carrying rolling path are communicated with binding by forming circular-arc a pair of direction conversion road with above-mentioned carrying rolling path with above-mentioned carrying rolling groove.Ball is released from load in the end of carrying rolling path, breaks away from and enters aforementioned direction conversion road from the ball rolling groove of rail track, does not have carrying rolling path from this direction conversion road direction and rolls.In addition, the ball that rolls in not having carrying rolling path is changed the ball rolling groove that the road turns back to rail track through the direction of opposition side, and bearing load rolls in carrying rolling path on one side on one side once more.Like this, moving block has the Infinite Cyclic path that connects carrying rolling path, direction conversion road, do not have the ball on carrying rolling path and direction conversion road, by ball on one side in this Infinite Cyclic road cocycle on one side at the loaded state of load and no loaded state repeatedly, moving block can have travel limits ground mobile continuously along rail track.
Above-mentioned moving block is made of a pair of plastic end cap on Chilled Hardened Steel block body that forms and the rear and front end face that is fixed on this block body, and above-mentioned carrying rolling groove is formed on the block body by grinding.On the other hand, above-mentioned nothing carrying rolling path forms the internal diameter through hole bigger than the diameter of ball abreast with above-mentioned carrying rolling groove on block body, thus, becomes the nothing carrying rolling path of passage shape.In addition, direction conversion road is formed on the above-mentioned end cap, this end cap is fixed on the rear and front end face of block body, thus, link the end of carrying rolling path and the end of nothing carrying rolling path by direction conversion road, constitute the Infinite Cyclic road (Japanese kokai publication hei 10-009264 communique, the real fair 4-53459 communique of Japan etc.) of ball.
Patent documentation 1: Japanese kokai publication hei 10-009264 communique
Patent documentation 2: the real fair 4-53459 communique of Japan
But, in the structure on the Infinite Cyclic road that is applicable to so existing rolling guide device, there are not carrying rolling path or direction conversion road in order on moving block, to be provided with, need a plurality of manufacturing procedures or parts, exist manufacturing, the assembling of moving block to expend man-hour, the problem of manufacture cost nature with regard to increasing.
In addition, owing to roll in bearing load limit, ball limit,, must carry out Quenching Treatment in the carrying rolling groove of block body to the formation position of the carrying rolling groove on the block body so need to improve the surface hardness of this carrying rolling groove.Opposite with it, when block body having been carried out the integral quenching processing, nothing is carried the processing of rolling path or is used for fixing the difficulties that become such as processing in the screw tap hole of movable body.Therefore, Quenching Treatment is only carried out carburizing and quenching etc. to the positions such as carrying rolling surface of necessity in the prior art, but processing is very time-consuming, still causes increasing of cost of production.
Summary of the invention
The present invention proposes in view of the above-mentioned problems, and its purpose is to provide a kind of rolling guide device, and it can make moving block easily possess the Infinite Cyclic road of ball, can simply and at an easy rate make by cutting down part count or work manhours.
In order to achieve the above object, rolling guide device of the present invention is made of rail track and moving block, this rail track forms the ball rolling groove along its length, this moving block has the Infinite Cyclic road of these balls when being installed on the above-mentioned rail track by a plurality of balls, move freely along such rail track.In addition, above-mentioned moving block comprises the block body that fixedly is mounted body, is installed in the position in the face of the ball rolling surface of above-mentioned rail track on the above-mentioned block body and forms the ball-recirculation plate on above-mentioned Infinite Cyclic road.On this ball-recirculation plate, form the carrying straight-line groove relative, parallel with this carrying straight-line groove and carry straight-line groove at least towards the nothing of rail track opening with the rolling groove of rail track.And above-mentioned ball the carrying straight-line groove inner edge of above-mentioned ball-recirculation plate and the rolling groove of rail track between the bearing load limit roll, in above-mentioned nothing carrying straight-line groove and rail track between the limit be subjected to leading edge and under no loaded state, roll.
According to such rolling guide device of the present invention, the block body of the above-mentioned moving block of relevant formation, because as long as only form the attachment face that is transported body of worktable etc. and the mounting point of above-mentioned ball-recirculation plate, need not on block body, be formed for making the nothing carrying rolling path of ball Infinite Cyclic, so can carry out the processing of this block body at an easy rate.In addition,, ball do not roll in the carrying straight-line groove that on the ball-recirculation plate, forms because not being at block body, thus needn't carry out heat treatment such as Quenching Treatment to block body, can be with cheap material formation such as low carbon steel.
On the other hand, on the ball-recirculation plate that is installed on the block body, form the carrying straight-line groove relative with the rolling groove of rail track, the nothing parallel with this carrying straight-line groove carried straight-line groove, because any in these grooves is all open towards rail track, so as long as before being installed to the ball-recirculation plate on the block body, just can enough cutting etc. processing method easily form, even and need not special-purpose work mechanism and utilize general work mechanism also can process.Thus, also can form the ball-recirculation plate at an easy rate, can be cheap and easily produce as moving block integral body.
In addition, also can make ball carry straight-line groove and not have and carry a pair of direction conversion groove that comes and goes between the straight-line groove in formation on the above-mentioned ball-recirculation plate, as long as on the ball-recirculation plate, form these carrying straight-line grooves, nothing carrying straight-line groove, the continuous track groove of a pair of direction conversion groove, just can be only by forming the Infinite Cyclic road of ball on the ball-recirculation plate, can be cheap more and easily produce moving block.
Description of drawings
Fig. 1 is the exploded perspective view that expression has been suitable for first embodiment of rolling guide device of the present invention.
Fig. 2 is the elevation cross-sectional view of rolling guide device shown in Figure 1.
Fig. 3 is the stereogram of the ball-recirculation plate of expression rolling guide device shown in Figure 1.
Fig. 4 is the enlarged view of the track groove of the ball-recirculation plate in the expression rolling guide device shown in Figure 1.
Fig. 5 is the amplification profile that the direction of expression track groove is changed the mobile status of the ball in the road.
Fig. 6 is the amplification profile that the expression tabular surface that makes rail track and the nothing of track groove are carried straight-line groove example in opposite directions.
Fig. 7 is that expression is the stereogram of stop component and the incorporate sealing unit of side sealing.
Fig. 8 is the elevation cross-sectional view of example that expression has changed the rolling guide device of ball-recirculation plate shape.
Fig. 9 is second embodiment's of the applicable rolling guide device of the present invention of expression a exploded perspective view.
Figure 10 is the stereogram of the ball-recirculation plate of expression rolling guide device shown in Figure 8.
Figure 11 is the enlarged view of structure on the Infinite Cyclic road of the ball in the expression rolling guide device shown in Figure 8.
Figure 12 is the front view of the inner side surface of the end cap that links to each other with moving block of expression.
Figure 13 is the 3rd embodiment's of the applicable rolling guide device of the present invention of expression a elevation cross-sectional view.
Figure 14 is the 4th embodiment's of the applicable rolling guide device of the present invention of expression a elevation cross-sectional view.
Description of reference numerals
1 rolling guide device
2 balls
10 rail tracks
13 ball rolling grooves
14 do not have the carrying ball grooves
15 tabular surfaces
20 moving blocks
30 ball-recirculation plates
31 track grooves
32 carrying straight-line grooves
33 do not have the carrying straight-line groove
34 directions conversion groove
40 stop components
Embodiment
Below, with reference to accompanying drawing rolling guide device of the present invention is elaborated.
Fig. 1 and Fig. 2 represent to be suitable for first embodiment of rolling guide device of the present invention.This first embodiment's rolling guide device 1 is made of rail track 10 and moving block 20, and described rail track 10 is fixed on base or pillar etc. and is mounted in the portion; Described moving block 20 is assembled on the above-mentioned rail track 10 via a plurality of balls 2, and above-mentioned moving block 20 can free to-and-fro motion on rail track 10.
Above-mentioned rail track 10 section vertical with length direction forms essentially rectangular, and bottom surface 11 becomes the stationary plane that is mounted portion to above-mentioned.In addition, offer the mounting hole 12 of fixing bolt with separating predetermined distance, plug in the fixing bolt that leads at this mounting hole 12 and link with the portion of being mounted by making at length direction, can make this rail track 10 relatively the portion of being mounted firmly fix.Bi-side at rail track 10 form ball rolling groove 13 along its length respectively.The section of this ball rolling groove 13 forms Goethe's formula cusped arch shape, rolls in this ball rolling groove 13 with 2 contact edges in ball 2 limits.On the other hand, the downside at this ball rolling groove 13 forms ball maintenance groove 14.This ball maintenance groove 14 and above-mentioned ball rolling groove 13 are roughly the same, perhaps form the degree of depth of above-mentioned ball rolling groove more than 13, prevent ball 2 service loads that roll in this ball keeps groove 14.Above-mentioned ball rolling groove 13 and ball keep groove 14 to be isolated by par 15.And above-mentioned ball maintenance groove 14 also can be used as the datum clamp face at the width direction of rail track 10.
On the other hand, above-mentioned moving block 20 comprises that the base portion 22 of attachment face 21 of the movable body that has worktable etc. is with relative with the bi-side of above-mentioned rail track 10 and from the above-mentioned base portion 22 outstanding a pair of skirt sections 23,23 that are provided with, form the roughly section of saddle as a whole.Become the accepting groove of the loosening setting-in in top of rail track 10 between a pair of skirt section 23,23, the base portion 22 of moving block 20 and skirt section 23 are relative with rail track 10 in the accepting groove across small gap.On above-mentioned base portion 22, be formed for the fixedly screw tap hole 24 of movable body, be connected to above-mentioned screw tap hole 24, movable body is fixed on the moving block 20 by plugging in the fixing bolt that leads at movable body.In addition, below each skirt section 23, be provided with the side sealing 25 that seals the gap of moving block 20 and rail track 10 along the length direction of this rail track 10.
On each skirt section 23 of moving block 20, at the fixed-site ball-recirculation plate 30 relative with the side of rail track 10.The section that this ball-recirculation plate 30 and length direction are vertical becomes general triangular, and is chimeric with the mounting groove 26 that forms on the skirt section 23 of moving block 20.As shown in Figures 3 and 4, on ball-recirculation plate 30, form the track groove 31 of accommodating a plurality of balls 2 in the position relative with the side of rail track 10.This track groove 31 keeps the relative nothing carrying straight-line groove 33 of groove 14 by the carrying straight-line groove 32 relative with the ball rolling groove 13 of rail track 10, with the ball of rail track 10 and the end a pair of direction conversion groove 34,34 connected to one another that makes these carrying straight-line grooves 32 and do not have a carrying straight-line groove 33 constitutes.
Roll by ball 2 bearing load limit, limit between the carrying straight-line groove 32 of the ball rolling groove 13 of rail track 10 and ball-recirculation plate 30, this ball-recirculation plate 30 is pressed in the mounting groove 26 of rail track 10 lateral movement pieces 20, thus, ball-recirculation plate 30 will be in skirt section 23 be maintained at mounting groove 26.In addition, as shown in Figure 1, on former and later two end faces of the movement direction of moving block 20, fixed stop parts 40,40 end ball-recirculation plate 30 moving to length direction by these stop components 40,40 cards.This stop component has the end sealed member 41 of rubber system, and this end sealed member 41 can seal the gap of rail track and moving block.That is, 30 of above-mentioned ball-recirculation plates relatively move the mounting groove 26 of piece 20 carry out chimeric, when moving block 20 when rail track 10 is deviate from, just can pull down ball-recirculation plate 30 from moving block 20 at an easy rate.
In addition, because ball-recirculation plate 30 its section as mentioned above forms general triangular, so for such ball-recirculation plate 30, when effect with it during to the power that pushes in the skirt section 23 of moving block 20, ball-recirculation plate 30 is positioned in the accepting groove 26 in skirt section 23 about the short transverse (above-below direction of paper) of rail track 10, as a result, obtain the location about these short transverse moving block 20 relative orbit guide rails 10.
As shown in Figure 5, the carrying straight-line groove 32 in the ball rolling groove 13 of above-mentioned rail track 10 and the track groove relative 31 with it, its section forms Goethe's formula cusped arch shape, ball 2 with respect to these grooves with 2 contacts.Ball 2 and ball rolling groove 13 or with carrying straight-line groove 32 contact direction each 45 degree that tilt up and down of Normal direction (left and right directions of Fig. 5) with respect to the side of rail track 10, can carry all loads beyond piece 20 its movement directions of effect that relatively move.Promptly, the ball rolling groove 13 by rail track 10 and the carrying straight-line groove 32 of ball-recirculation plate 30 are in opposite directions, form the carrying rolling path of ball 2, roll in this carrying rolling path by ball 2, the moving block 20 of maintenance ball-recirculation plate 30 can be along rail track 10 to-and-fro motion freely.
On the other hand, the ball of the nothing of ball-recirculation plate 30 carrying ball grooves 33 and rail track 10 keeps groove 14 its sections also to form Goethe's formula cusped arch shape.The ball of relative rail track 10 sides keeps the distance that the groove 14 and the nothing of moving block 20 sides are carried straight-line groove 33 mutually, be set at bigger than the diameter that is housed in the ball 2 in the track groove 31, the small gap of generation between ball 2 and rail track 10, ball 2 and moving block 20.Thereby the ball that ball 2 is affiliated at rail track 10 keeps on the groove 14, rolls with no loaded state in the nothing carrying straight-line groove 33 of moving block 20, and thus, ball 2 can remain on not to be had in the carrying straight-line groove 33.That is, the nothing carrying straight-line groove 33 by making ball-recirculation plate 30 and the ball grooves 14 of rail track 10 relative, the nothing that forms ball 2 is carried the rolling path.
In addition, ball 2 forms with no loaded state in the inside of above-mentioned direction conversion groove 34 and rolls.For the ball 2 that rolls on the ball rolling groove 13 inner edge bearing load limits of rail track 10 is imported direction conversion groove 34, this direction conversion groove 34 deepens gradually from the joint with carrying straight-line groove 32, and is the darkest at the position relative with the par 15 of rail track 10.Afterwards, along with not shoaling gradually, be connected with nothing carrying straight-line groove 33 near there being carrying straight-line groove 33.
If moving block 20 is moved along rail track 10, then be clamped in ball 2 between the carrying straight-line groove 32 of the ball rolling groove 13 of rail track 10 and moving block 20, the i.e. ball 2 of bearing load in carrying rolling path, mobile in carrying straight-line groove 32 with moving block 20 with respect to half the speed of the travelling speed V of rail track 10.If the ball 2 that rolls in carrying straight-line groove 32 arrives the connection part of carrying straight-line groove 32 and direction conversion groove 34, because the degree of depth of this carrying straight-line groove deepens gradually, therefore little by little load is released.The ball 2 that obtains discharging from load is promoted by follow-up ball 2, and advancing in the ball rolling groove 13 at rail track 10 under this state, but because direction conversion groove 34 makes the side of these ball 2 deflection ball rolling grooves 13, thereby, this ball 2 is promoted to the par 15 of rail track 10 in the mode of climbing in ball rolling groove 13, be housed in fully in the direction conversion groove 34 of moving block 20.
Because direction conversion groove 34 has roughly semicircular track, so the ball 2 that is housed in the direction conversion groove 34 reverses its rotating direction, the ball that enters by rail track 10 keeps the groove 14 and the nothing of moving block 20 to carry in the straight-line groove 33 relative formed nothing carrying rolling paths.At this moment, ball 2 enters in the mode that keeps at the ball of rail track 10 in the groove 14 climbing under side direction does not have carrying rolling path.As mentioned above, because it is bigger slightly than the diameter of ball 2 that the ball of rail track 10 keeps the groove 14 and the distance setting of the nothing carrying straight-line groove 33 of moving block 20, thereby ball 2 do not become no loaded state in having carrying rolling path, do not advance in having carrying rolling path in the mode that is promoted by follow-up ball 2.
In addition, the ball 2 of in not having carrying rolling path, advancing, if arrive the connection part that does not have carrying straight-line groove 33 and direction conversion groove 34, then direction conversion groove 34 makes the ball of rail track 10 keep the ball 2 in the groove 14 to be partial to pars 15, therefore, this ball 2 rises to the par 15 of rail track 10 in the mode of climbing on keeping groove 14 at ball, is housed in fully in the direction conversion groove 34 of moving block 20.In addition, the balls 2 that are housed in the direction conversion groove 34 reverse its rotating direction once more, enter in the carrying straight-line groove 32 relative formed carrying rolling paths by the ball rolling groove 13 of rail track 10 and moving block 20.At this moment, ball 2 enters carrying rolling path in the mode of climbing from the side downwards the ball rolling groove 13 of rail track 10, when the degree of depth of this carrying straight-line groove when the connection part of direction conversion groove 34 and carrying straight-line groove 32 shoals gradually, from of the loaded state transfer of no loaded state to load.
In the rolling guide device of such present embodiment, owing to relatively ball-recirculation plate 30 is installed at the inner side surface in the skirt section 23 of the moving block 20 relative with the formation face of ball rolling groove 13 in the rail track 10, be used in the Infinite Cyclic road that the track groove 31 that forms on this ball-recirculation plate 30 forms ball 2, therefore, the structure of moving block 20 is extremely simple.Because track groove 31 is opened to the side of rail track 10, so can form at an easy rate by ball-recirculation plate 30 being carried out cutting etc., at this moment, can precision adjust carrying straight-line groove 32 well, not have the degree of depth of carrying straight-line groove 33 and direction conversion groove 34 by the digital control of working machine.In addition, adding man-hour, the side of the piece 20 that can relatively move forms in an operation and resembles a track groove 31 of being write as.
In addition, because comprising the track groove 31 that carries straight-line groove 32 forms on ball-recirculation plate 30, so if ball-recirculation plate 30 is implemented Quenching Treatment, just needn't carry out Quenching Treatment to moving block 20, such moving block 20 can be used relatively more cheap material formation such as low carbon steel (for example SS41).In addition, by using such material also can easily carry out movable body the relatively move processing of attachment face 21 of piece 20 or the processing in screw tap hole 24.And the material of moving block 20 and ball-recirculation plate 30 can be according to the purposes independent assortment of the rolling guide device of assembling.
And then, because ball-recirculation plate 30 and moving block 20 are processed above-mentioned track grooves 31 to 30 of this ball-recirculation plates, so can the whole ball-recirculation plate 30 of Quenching Treatment than being widget.Thus, compare with the rolling guide device that only soaks the prior art of carbon Quenching Treatment at the ball rolling position of moving block 20, can be simply and carry out Quenching Treatment at an easy rate.
In addition, because other parts that do not need to be used to form the Infinite Cyclic road of ball 2 as end cap etc. are fixed on the moving block 20, therefore, do not need to control the machining accuracy of these parts or installation precision etc.Therefore, the present invention not only when making the big rolling guide device of ball diameter, also useful when using the minimal type rolling guide device of the ball below the diameter 1mm in Production Example.
In example shown in Figure 1, on rail track 10, form ball and keep groove 14, ball by rail track 10 sides keeps the nothing carrying straight-line groove 33 of groove 14 and ball-recirculation plate 30 sides relative, and nothing carrying straight-line groove 33 analogies that form on the ball-recirculation plate 30 are shallow to conversion groove 34, as shown in Figure 5, do not have carrying straight-line groove 33 along with circuit ball 2 in track groove 31 enters from direction conversion groove 34, float on the surface of ball-recirculation plate 30.As shown in Figure 6, also can form the nothing carrying straight-line groove 33 that constitutes track groove 31 the groove of the continuous degree of depth from the deep that direction is changed groove 34, it is relative with the side of rail track 10 and constitute nothing and carry the rolling path not have carrying straight-line groove 33.According to the formation that such structure can be omitted the ball maintenance groove 14 of relative orbit guide rail 10, it is easy that the processing of rail track 10 becomes.
In addition, in example shown in Figure 1, make a pair of stop component 40,40 in former and later two end faces of moving block 20 screw respectively, as shown in Figure 7, also can form these limiting parts 40 and be fixed on a pair of side sealing 25 incorporate sealing units 50 on the skirt section 23 of moving block 20.The sheet metal of sealing unit 50 crooked punch process and forming, the sealing lip of the fixing rubber system that is connected with rail track 10 as end sealing 41 and side sealing 25 on the assigned position of such sheet metal.Relative sealing unit 50 chimeric moving blocks 20 by fixing with screw etc., can just make side sealing 25 and end sealing 41 piece 20 positioning and fixing that relatively move quickly, can further reduce the required number of moving block 20 assemblings.
And then in example shown in Figure 1, the section vertical with length direction of ball-recirculation plate 30 forms general triangular, and the mounting groove 26 of the moving block 20 that such ball-recirculation plate is chimeric also forms same shape., as above-mentioned ball-recirculation plate 30,,, as shown in Figure 8, roughly trapezoidal also harmless even the section vertical with length direction forms as long as correctly locate at the short transverse and the width direction of rail track 10 when with the mounting groove 26 of moving block 20 when chimeric.
Fig. 9 is second embodiment's of an expression rolling guide device of the present invention sectional drawing.
As shown in figure 10, the ball-recirculation plate 70 and first embodiment who is contained on the skirt section 23 of moving block 20 is identically formed general triangular cross section.On the face relative of this ball-recirculation plate 70, only forms carrying straight-line groove 71 abreast and do not have carrying straight-line groove 72, do not form the such direction of first embodiment and change groove 34 with the ball rolling groove 13 of this rail track 10 with rail track 10.In addition, the carrying straight-line groove 71 and do not have the carrying straight-line groove 72 open to the end face of ball-recirculation plate 70.Carry straight-line groove 71 and do not have the section shape that carries straight-line groove 72 identical with first embodiment, by the carrying straight-line groove 71 of ball-recirculation plate 70 and the ball rolling groove 13 relative carrying rolling paths that form ball 2 of rail track 10, on the other hand, keep the groove 14 relative nothing carrying rolling paths that form ball 2 by the nothing carrying straight-line groove 72 of ball-recirculation plate 70 and the ball of rail track 10.
On the other hand, on the end cap 60 that is fixed on the moving block 20, form the direction conversion groove 61 that is communicated with the carrying rolling path that connects ball 2 and does not have carrying rolling path.That is, when being fixed on a pair of end cap 60 on the moving block 20, as shown in figure 11, the carrying straight-line groove 71 of ball-recirculation plate 70 and do not have carrying straight-line groove 72 and be communicated with by the direction of end cap 60 conversion groove 61 and connect the Infinite Cyclic road of finishing ball 2.For the ball 2 that in the ball rolling groove 13 of rail track 10 is rolled in bearing load limit, limit imports direction conversion groove 61, this direction conversion groove 61 deepens gradually from the joint with carrying straight-line groove 71, and it is the darkest to be formed on the position relative with the par 15 of rail track 10.And along with shoaling gradually near there not being carrying straight-line groove 72, be connected with nothing carrying straight-line groove 72.That is, this direction conversion groove 61 forms the direction conversion groove 34 that forms in the same old way on first embodiment's ball-recirculation plate 30 on end cap 60.
The end sealing 62 in the gap of sealing and rail track 10 is housed on this end cap 60 in addition.
In this second embodiment's rolling guide device, ball 2 also can circulate in the Infinite Cyclic road that is formed by ball-recirculation plate 70 and end cap 60, accompanies therewith, and moving block 20 can move incessantly continuously along rail track 10.
But, in second embodiment's rolling guide device, owing to there is not the track groove on ball-recirculation plate 70, a formation is carried straight-line groove 71 and is not had carrying straight-line groove 72, so compare the easy processing of ball-recirculation plate 70 with first embodiment.In addition, about degree of depth continually varying direction conversion groove 61, owing to be that it is formed on the plastic end cap 60, so can be by using the cheap and a large amount of shapes of producing complicated directions conversion groove 61 of method of moulding of injection molding etc.That is, the location and the fixed operation of the end cap 60 of piece 20 although this second embodiment's rolling guide device need relatively move, comparable first embodiment's rolling guide device is produced more at an easy rate.
Figure 13 is the 3rd embodiment's of an expression rolling guide device of the present invention sectional drawing.
In above-mentioned first embodiment and second embodiment, ball-recirculation plate 30 forms section and is roughly triangle, make this ball-recirculation plate 30 chimeric with the mounting groove 26 of moving block 20, and the ball-recirculation plate 80 of present embodiment forms substantially planars, is used in engaging protrusion 81 cards that back side forms and ends on the inner side surface in the skirt section 23 of moving block 20.
On the surface of this ball-recirculation plate 80, the same track groove that constitutes by carrying straight-line groove 82, nothing carrying straight-line groove 83 and direction conversion groove that forms with first embodiment, on the other hand, face within it forms above-mentioned engaging protrusion 81 along the length direction of rail track 10.The inner face of these engaging protrusion 81 relative ball-recirculation plates 80 is outstanding is arranged to semi-cylindrical, and on the skirt section 23 of moving block 20, the card that formation supplies the head of above-mentioned engaging protrusion 81 to be slidingly connected ends groove 84.In addition, between the inner face of the inner side surface in skirt section 23 and ball-recirculation plate 80, form the gap, according to the load that acts on the ball 2 that in carrying straight-line groove 82, rolls, above-mentioned ball-recirculation plate 80 relative skirt sections 23 inclinations.
According to such rolling guide device, when the rolling guide device that is mounted the diaxon that be arranged in parallel in the portion at support or pillar etc., the relative fixing movable body of universal head etc. of the moving block 20 of these rolling guide devices, when constituting the mobile substation unit, the long lifetime of this rolling guide device can be realized, and slip resistance can be realized reducing.Promptly, if have machining error on the moving block attachment face in the movable bodys such as rail track attachment face in support or pillar etc. or worktable, when the above-mentioned mobile substation of assembling unit, effect has the moment load between rail track 10 and the moving block 20, have only specific ball to be listed in premature wear in a plurality of ball row that in moving block 20, exist, in addition, the slip resistance of the moving block 20 of relative orbit guide rail 10 also has the tendency of increase.; example as shown in figure 13; if according to the load that acts on the ball 2 that in carrying straight-line groove 82, rolls; when above-mentioned ball-recirculation plate 80 relative skirt sections 23 constitute obliquely; machining error according to rail track attachment face or moving block attachment face; above-mentioned ball-recirculation plate 80 relative skirt section 23 run-off the straights relax the excessive load of specific ball 2 effects.Thus, can realize long-life while of rolling guide device 1, realize that the slip resistance of the moving block 20 of relative orbit guide rail 10 reduces in the inordinate wear that prevents ball 2.
Figure 14 is the 4th embodiment's of an expression rolling guide device of the present invention sectional drawing.
In the 4th embodiment's rolling guide device, the inner side surface in each skirt section 23 of moving block 20 forms the concave curved surface 91 of certain curvature, and a pair of ball-recirculation plate 90 forms the shape consistent with these concave curved surfaces 91.Promptly, ball-recirculation plate 90 forms roughly plate shaped, form by carrying straight-line groove 92 in its surface, do not have the track groove that carrying straight-line groove 93 and direction conversion groove form, on the other hand, at the consistent convex surface 94 of the concave curved surface 91 in inner face formation and the skirt section 23 of moving block 20.The length of the circular arc direction of the concave curved surface 91 in skirt section 23 is longer than the length of the circular arc direction of the convex surface 94 of ball-recirculation plate 90, ball-recirculation plate 90 can be in the skirt section 23 inner side surface upper edge concave curved surface 91 freely move.
The centre of curvature O of the concave curved surface 91 in skirt section 23 is located at carrying straight-line groove 92, does not have the center of the four row balls 2 that roll on the carrying straight-line groove 93.Therefore, with the axle along the length direction of rail track 10 is the center, even moving block 20 is fixed in movable body under the state that relative orbit guide rail 10 tilts slightly, 23 concave curved surface 91 moves along the skirt section by ball-recirculation plate 90, also can be absorbed in the instantaneous load that takes place between rail track 10 and the moving block 20.Thus,, also can prevent, can make the motion of moving block 20 of relative orbit guide rail 10 smooth and easy the excessive load of ball 2 effect even when the attachment face low precision of rail track 10.
Like this,, the Infinite Cyclic road of ball 2 can be set at moving block 20 easily according to the present invention, can be by reducing component number or work manhours easier and make rolling guide device at an easy rate than prior art.
Claims (9)
1. rolling guide device, this rolling guide device is made of rail track and moving block, described rail track forms the ball rolling groove along its length, described moving block is installed on the described rail track via a plurality of balls, simultaneously, have the Infinite Cyclic road of these balls, move freely along this rail track;
Described moving block possesses the ball-recirculation plate, and this ball-recirculation plate is installed on the described moving block in the ball rolling surface position in opposite directions with described rail track, forms described Infinite Cyclic road;
On this ball-recirculation plate, be formed with at least and in opposite directions carrying straight-line groove of the rolling groove of rail track, parallel with this carrying straight-line groove and towards the open nothing carrying straight-line groove of rail track;
Described ball in the carrying straight-line groove of described ball-recirculation plate on one side and the rolling groove of rail track between bearing load roll on one side, in described nothing carrying straight-line groove on one side and rail track between be directed under no loaded state, rolling on one side.
2. rolling guide device as claimed in claim 1 is characterized in that described moving block is provided with the mounting groove of described ball-recirculation plate, and this ball-recirculation plate by being pressed in the described mounting groove, obtains the location by the ball that rolls in described carrying straight-line groove.
3. rolling guide device as claimed in claim 2 is characterized in that, on described ball-recirculation plate, is formed with and makes ball at the carrying straight-line groove with there is not a pair of direction conversion groove that carrying is come and gone between the straight-line groove, forms the track groove by these grooves.
4. rolling guide device as claimed in claim 3, it is characterized in that, described mounting groove is open in the front and back of the movement direction of described moving block, on the other hand, at the rear and front end of described moving block body face the stop component of the ball-recirculation plate that blocks in the described mounting groove is installed.
5. rolling guide device as claimed in claim 4 is characterized in that, the end sealing in the gap of sealing moving block and rail track is installed on described stop component.
6. rolling guide device as claimed in claim 5 is characterized in that, is provided with a pair of side sealing in the gap of this rail track of sealing and moving block along the length direction of rail track, and a pair of stop component is connected by these side sealings.
7. rolling guide device as claimed in claim 2, it is characterized in that, described mounting groove is open in the front and back of the movement direction of described moving block, on the other hand, be fixed with a pair of end cap of the ball-recirculation plate that blocks in the described mounting groove at the rear and front end of described moving block face, make ball at the carrying straight-line groove with there is not a direction conversion groove that comes and goes between the carrying straight-line groove forming on each end cap.
8. rolling guide device as claimed in claim 7 is characterized in that, the sealed member in the gap of sealing moving block and rail track is installed on described end cap.
9. rolling guide device as claimed in claim 1 is characterized in that, is formed with the ball parallel with the ball rolling groove and keeps groove on described rail track, and this ball keeps the nothing of groove and ball-recirculation plate to carry straight-line groove in opposite directions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP363494/2004 | 2004-12-15 | ||
| JP2004363494 | 2004-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101080581A CN101080581A (en) | 2007-11-28 |
| CN100538094C true CN100538094C (en) | 2009-09-09 |
Family
ID=36587790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800432080A Active CN100538094C (en) | 2004-12-15 | 2005-12-09 | Rolling guide device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4601626B2 (en) |
| KR (1) | KR101149967B1 (en) |
| CN (1) | CN100538094C (en) |
| TW (1) | TW200626807A (en) |
| WO (1) | WO2006064734A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4275190B2 (en) * | 2006-09-29 | 2009-06-10 | Ｔｈｋ株式会社 | Linear guide device |
| JP5128206B2 (en) * | 2007-08-30 | 2013-01-23 | Ｔｈｋ株式会社 | Linear guide device |
| JP5570217B2 (en) * | 2007-09-27 | 2014-08-13 | Ｔｈｋ株式会社 | Linear guide device |
| US8684605B2 (en) | 2008-03-07 | 2014-04-01 | Pacific Bearing Company | Guide rail |
| US8235595B2 (en) * | 2008-03-07 | 2012-08-07 | Pacific Bearing Company | Guide rail and method for manufacturing same |
| CN102022468B (en) * | 2010-11-24 | 2012-08-08 | 张志明 | Sliding damping device |
| JP6185752B2 (en) * | 2012-05-11 | 2017-08-23 | Thk株式会社 | Exercise guidance device |
| CN104100634A (en) * | 2013-04-02 | 2014-10-15 | 全研科技有限公司 | Improved structure of linear sliding |
| JP6187680B2 (en) * | 2014-04-14 | 2017-08-30 | 日本精工株式会社 | Ball screw |
| CN106195003A (en) * | 2016-08-08 | 2016-12-07 | 洛阳轴研科技股份有限公司 | A kind of arc-shaped guide rail bearing unit and use the rocking equipment of this bearing unit |
| CN106241236A (en) * | 2016-08-26 | 2016-12-21 | 怀宁县明慧竹业有限公司 | A kind of food steamer toter |
| CN111043153A (en) * | 2019-12-25 | 2020-04-21 | 嘉善万润精密机械股份有限公司 | Combined sliding block and edge sealing structure thereof |
| CN113757256A (en) * | 2020-06-04 | 2021-12-07 | 加昌国际有限公司 | Rolling bearing device and machining method thereof |
| KR102574783B1 (en) * | 2021-05-21 | 2023-09-07 | 주식회사 이엠플러스정보기술 | Lm guide and manufacturing method thereof |
| CN115451015B (en) * | 2022-08-16 | 2023-12-19 | 鸿富锦精密工业(衡阳)有限公司 | Linear guide rail |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5846226A (en) * | 1981-09-11 | 1983-03-17 | Hiihaisuto Seikou Kk | Ball slideway |
| JPS6185716U (en) * | 1984-11-10 | 1986-06-05 | ||
| JPH0650125B2 (en) * | 1986-12-23 | 1994-06-29 | 博 寺町 | Ball bearing for linear sliding |
| JPH0754660Y2 (en) * | 1990-03-20 | 1995-12-18 | 日本精工株式会社 | Linear motion guide bearing |
| JP2003120669A (en) * | 2001-10-18 | 2003-04-23 | Tsubakimoto Chain Co | Slide member for linear guide and linear guide member |
-
2005
- 2005-12-09 CN CNB2005800432080A patent/CN100538094C/en active Active
- 2005-12-09 KR KR1020077013333A patent/KR101149967B1/en active IP Right Grant
- 2005-12-09 WO PCT/JP2005/022663 patent/WO2006064734A1/en active Application Filing
- 2005-12-09 JP JP2006548805A patent/JP4601626B2/en active Active
- 2005-12-13 TW TW094144144A patent/TW200626807A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2006064734A1 (en) | 2008-06-12 |
| TWI375758B (en) | 2012-11-01 |
| WO2006064734A1 (en) | 2006-06-22 |
| JP4601626B2 (en) | 2010-12-22 |
| CN101080581A (en) | 2007-11-28 |
| TW200626807A (en) | 2006-08-01 |
| KR20070090920A (en) | 2007-09-06 |
| KR101149967B1 (en) | 2012-06-01 |
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