CN103904819A - Linear moving device - Google Patents
Linear moving device Download PDFInfo
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- CN103904819A CN103904819A CN201410091571.0A CN201410091571A CN103904819A CN 103904819 A CN103904819 A CN 103904819A CN 201410091571 A CN201410091571 A CN 201410091571A CN 103904819 A CN103904819 A CN 103904819A
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- Prior art keywords
- mentioned
- workbench
- seal band
- direct acting
- slide
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H25/2418—Screw seals, wipers, scrapers or the like
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/20—Packing materials therefor
- F16J15/22—Packing materials therefor shaped as strands, ropes, threads, ribbons, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Basic Packing Technique (AREA)
- Sealing Devices (AREA)
Abstract
The objective of this invention is to prevent dust from entering a case. The solution of this invention is that: a tape-shaped sealing stripe is provided and having a length capable of crossing on a top of a platform for sealing an opening, an sealing stripe guide part is in contact with the tape-shaped sealing stripe while the tape-shaped sealing stripe crosses on the top of the platform so as to bend the tape-shaped sealing stripe, thus an elastic thrust is generated for fixing the portion of the tape-shaped sealing stripe, which does not cross the top of the platform, to an adhesion component, and a slide sheet seals gaps formed between a platform cover and the top of a lateral cover and the tape-shaped sealing stripe while the tape-shaped sealing stripe crosses the top of the platform.
Description
The divisional application that the present invention's Chinese Patent Application No. that to be the applicant submit on June 17th, 2010 is 201010206003.2, denomination of invention is " direct acting device ".
Technical field
For example the present invention relates to make the straight moving direct acting device of slide block by ball-screw or hydraulic cylinder, particularly in be attached at workbench on slide block, with the improvement that is accommodated with the dust guard between the housing of the slide block that operates this workbench.
Background technology
In the past, this direct acting device was provided with banded seal band to invading in housing to the peristome of housing in order to prevent dust.
But, because workbench is attached on slide block, so become the structure of banded seal band leap slide block.Therefore, there is dust to invade the situation in housing from the gap of the banded seal band that floats under slide block effect.
In order to prevent this situation, for example between workbench and housing, less gap dare to be set, will be in housing pressurization prevent the intrusion of dust, or in the gap of workbench and housing, flexible sliding panel is set and prevents the intrusion of dust.
And, for banded seal band is connected airtight to the peristome of housing, become the structure from the upper surface of banded seal band, banded seal band being pushed to the peristome of housing by roller or scraper plate etc.
In addition,, in order to prevent that banded seal band from floating, produce gap between banded seal band and the peristome of housing from housing, become to banded seal band is applied tension force and always keeps the structure of tense situation.
As the method that banded seal band is applied to tension force, become roller or scraper plate are pressed against to the structure on upper surface and the lower surface of banded seal band.
In addition, in order suitably to keep the tension force of banded seal band, the elastomeric elements such as spring for roller or scraper plate are supported.
[patent documentation 1] TOHKEMY 2000-197304 communique
The microfilm that No. 4-60642, [patent documentation 2] Japanese Patent Publication
The real microfilm of opening clear No. 63-172545 of [patent documentation 3] Japan
The microfilm that No. 3-33041, [patent documentation 4] Japanese Patent Publication
[patent documentation 5] TOHKEMY 2000-61681 communique
[patent documentation 6] TOHKEMY 2006-43856 communique
But, in the method for pressurizeing, need to be used for supplying with compressor and the pipe arrangement of pressure in by housing, in the sliding panel of this external flexibility, there is shape and the more complicated problem of installation method of parts.
In addition, in the dust tight construction of seal band in the past, the mechanism that banded seal band need to be pushed to the peristome of housing and the mechanism that banded seal band is applied to tension force.
In addition, the friction bringing in order to reduce the tension force of banded seal band, must, to the material that uses roller or low friction between banded seal band and workbench, construct more complicated.
In addition, there are tension force or friction by banded seal band, make the resistance to sliding of device self larger, the larger problem of load of the motor to drive unit etc.
Summary of the invention
The present invention makes in order to solve such problem in the past, its objective is that providing a kind of does not apply tension force to banded seal band, and the not peristome pushing to housing by banded seal band, and can prevent that dust is to the direct acting device of invading in housing.
The direct acting device that technical scheme 1 relates to is characterised in that to possess: housing, is formed with peristome in the longitudinal direction; Side cover, is located at the both sides of the length direction of above-mentioned peristome along above-mentioned peristome; Attachment members, is located at the above-mentioned peristome side separately of above-mentioned side cover along above-mentioned peristome; Slide block, has erected workbench, makes above-mentioned workbench more outstanding than above-mentioned peristome, and is accommodated freely along the length direction reciprocating motion of above-mentioned housing; Seal band, covers the mode of the length direction of above-mentioned peristome to cross over the upper surface of above-mentioned workbench, both ends are fixed on above-mentioned housing, and both sides are fixed by above-mentioned attachment members; And seal band guidance part, in the time of above-mentioned movable workbench, making above-mentioned seal band on the length direction of above-mentioned workbench, form with above-mentioned workbench is the bend of contact condition not; Above-mentioned seal band have under contact condition not, cross over above-mentioned workbench upper surface and by the length of above-mentioned peristome shutoff; In the time that above-mentioned seal band is crossed over the upper surface of above-mentioned workbench, above-mentioned seal band guidance part contacts with above-mentioned seal band and makes above-mentioned seal band bending, become and the discontiguous state of above-mentioned workbench, and producing active force, this active force makes not the above-mentioned seal band of crossing over the region of the upper surface of above-mentioned workbench under contact condition not fix to above-mentioned attachment members.
In the direct acting device that the invention that technical scheme 2 relates to is recorded in technical scheme 1, it is characterized in that, seal band guidance part is located on the front and rear part of length direction of workbench.
In the direct acting device that the invention that technical scheme 3 relates to is recorded in technical scheme 1 or 2, it is characterized in that, seal band guidance part hangs down towards the upper surface of side cover from the upper surface of workbench, and separates gap configuration with respect to the upper surface of side cover.
In the direct acting device that the invention that technical scheme 4 relates to is recorded in technical scheme 1, it is characterized in that, seal band guidance part is located at the front and rear part of the length direction of workbench lid, and this workbench lid is installed on workbench.
In the direct acting device that the invention that technical scheme 5 relates to is recorded in technical scheme 4, it is characterized in that, seal band guidance part hangs down towards the upper surface of side cover from the upper surface of workbench, and separates gap configuration with respect to the upper surface of side cover.
In the direct acting device that the invention that technical scheme 6 relates to is recorded in any one of relevant technologies scheme 1～5, it is characterized in that, the upper surface of workbench is formed as the front and rear part arch lower than central portion of length direction.
In the direct acting device that the invention that technical scheme 7 relates to is recorded in any one of technical scheme 1～6, it is characterized in that, attachment members is flat thin magnet; Banded seal band is made up of magnetic material.
In the direct acting device that the invention that technical scheme 8 relates to is recorded in any one of technical scheme 1～6, it is characterized in that, attachment members is silicon rubber, polyurethane or the polyurethane that has applied bonding agent.
In the direct acting device that the invention that technical scheme 9 relates to is recorded in any one of technical scheme 1～8, it is characterized in that, workbench possesses: maintaining part, be located on the complete cycle of workbench, and insert and keep slide; And pushing portion, be located on the contact-making surface contacting with slide on the bottom surface of maintaining part, slide is pushed to housing direction.
In the direct acting device that the invention that technical scheme 10 relates to is recorded in technical scheme 9, it is characterized in that, pushing portion forms by the contact-making surface contacting with slide of bottom surface is made to concaveconvex shape.
In the direct acting device that the invention that technical scheme 11 relates to is recorded in any one of technical scheme 4～8, it is characterized in that, workbench lid possesses: maintaining part, be located on the complete cycle of workbench lid, and insert and keep slide; And pushing portion, be located on the contact-making surface contacting with slide on the bottom surface of maintaining part, slide is pushed to housing direction.
In the direct acting device that the invention that technical scheme 12 relates to is recorded in technical scheme 11, it is characterized in that, pushing portion forms by the contact-making surface contacting with slide of bottom surface is made to concaveconvex shape.
In the direct acting device that the invention that technical scheme 13 relates to is recorded in any one of technical scheme 1～12, it is characterized in that, slide block comprises two parts, and on the length direction of housing configured in series.
In the direct acting device that the invention that technical scheme 14 relates to is recorded in technical scheme 13, it is characterized in that, seal band guidance part is located on the front and rear part and pars intermedia of length direction of workbench lid, and this workbench lid is installed on workbench.
In the direct acting device that the invention that technical scheme 15 relates to is recorded in any one of technical scheme 1～14, it is characterized in that, the width of seal band guidance part is 50～80% with respect to the width of banded seal band.
Invention effect
According to the present invention, be the direct acting device with workbench, and by the peristome of housing is fully sealed, can prevent that dust from invading and have a dust reduction capability, and maximization that can anti-locking apparatus.
In addition, because workbench is less with respect to the resistance to sliding of banded seal band, thus can carry out high-precision location, and to driving the load of motor etc. of direct acting device less, more energy-conservation, can be conducive to long lifetime.
In addition, owing to not needing the seal band to banded to apply tension force, so seal band guidance part only contacts the upper surface at seal band, resistance to sliding is less, and need to be in order to regulate for the tension force of banded seal band and with elastomeric element backing roll or scraper plates such as springs.
In addition,, because the lower surface of banded seal band can not contact with the upper surface of workbench, so can there is not the unwanted tension force for banded seal band, resistance to sliding is less.
In addition,, by by two parts of slide block configured in series or use and lengthened the slide block of total length, can increase the bearing capacity of workbench.
In addition, even if add the length of bench at the bearing capacity in order to increase workbench, by two parts of slide block configured in series, also can prevent to the contact of the inner side of workbench lid and reduce the contact area of the upper surface of banded seal band by append seal band guidance part at pars intermedia.
Brief description of the drawings
Fig. 1 is the vertical view of the direct acting device that relates to of the first execution mode of the present invention.
Fig. 2 is the cutaway view along the A-A line of Fig. 1.
Fig. 3 is the cutaway view along the B-B line of Fig. 1.
The major part of Fig. 2 is amplified the cutaway view representing by Fig. 4.
The major part of Fig. 2 is amplified the stereogram representing by Fig. 5.
Fig. 6 is the cutaway view that represents the relation of the seal band 23 of workbench 12, workbench lid 16, seal band guidance part 16j and band shape.
The workbench lid 16 of the direct acting device of Fig. 1 and banded seal band 23 are got the stereogram that removes, the seal band guidance part 16j of workbench lid 16 is left to expression by Fig. 7.
In Fig. 8, (a) being the stereogram that represents workbench lid 16, (b) being the stereogram that represents slide 37 to be arranged on the state on workbench lid 16, is (c) stereogram that represents the bearing surface of the resettlement section 16f of workbench lid 16.
Fig. 9 is the stereogram that represents slide 37.
Figure 10 is the cutaway view that represents workbench lid 16 and the contact-making surface of slide 37 to make the example of the continuous chevron being made up of protuberance 16g and recess 16h.
Figure 11 is the cutaway view that represents workbench lid 16 and the contact-making surface of slide 37 to make the example of plane.
Figure 12 is the cutaway view that represents the relation of workbench lid 16, slide 37 and side cover 8.
Figure 13 is the key diagram that represents the direct acting device of Fig. 1 to make the example of wall hanging and the example of horizontal positioned.
Figure 14 is the stereogram that represents the workbench 12 that possesses slide 37.
Figure 15 is the stereogram of the direct acting device that relates to of the second execution mode of the present invention.
Figure 16 is the stereogram that represents the workbench lid 16 of the direct acting device of Figure 15 to get the workbench 12 that removes, the seal band guidance part 16j of workbench lid 16 is stayed.
The major part of Figure 16 is amplified the stereogram representing by Figure 17.
Figure 18 is the cutaway view that represents the seal band guidance part 16k of two workbench 12, workbench lid 16, two seal band guidance part 16j, central authorities and the relation of banded seal band 23.
Description of symbols
1 motor
2 brackets
3 ball-screws
4 housings
5 flanges
7 magnet
8 side covers
The upper surface of 8a side cover 8
10 lead screw shaft
11 sliding shoes
12 workbench
12c recess
Tapered portion in the middle of 12d
12e seal band guidance part
13 guide channels
16 workbench lids
16a top panel
16b side panel
16c front and back panel
16d side rib
16e front-back rib
16f resettlement section
16g protuberance
16h recess
16j, 16k seal band guidance part
18 ball-screw nuts
20 peristomes
The seal band of 23 band shapes
34 work tops
37 slides
37a lid side contacts face
37b seal band side contacts face
Embodiment
Below, based on execution mode explanation the present invention shown in the drawings.
(the first execution mode)
Fig. 1 to Figure 13 represents straight moving (straight Move) device that the first execution mode of the present invention relates to.
In the drawings, the 1st, motor, the 2nd, by the bracket that is accommodated in ball-screw in housing 43 and motor 1 and links.
As shown in Figure 1 and Figure 2, one end is attached on motor 1 via screw bracket 2.In addition, bracket 2 is axially arranged with hollow bulb 2a along housing 4, is provided with the linking part 9 of shaft coupling etc. in hollow bulb 2a.On linking part 9, motor drive shaft 1a is attached in the lead screw shaft 10 of ball-screw 3.
As shown in Figure 2 and Figure 3, axial top is along the moving direction of sliding shoe 11, axially form peristome 20, axial both ends opening for housing 4.The recess 4a being formed by peristome 20 is formed with and moves back and forth the guide channel 13 of receiving freely sliding shoe (slide block) 11, and this sliding shoe moves back and forth by the effect of ball-screw 3 in the axial direction along the axial of two medial surface 4b of recess 4a.
In addition, housing 4 is linking bracket 2 via screw and is being closed on an openend, is linking flange 5 and be closed on another openend via screw.
Sliding shoe 11 is provided with workbench 12 on upper surface.
On sliding shoe 11, as shown in Figure 2 and Figure 3, dispose the ball-screw nut 18 of ball-screw 3, sliding shoe 11 is slided along the guide channel 13 being formed in the recess 4a of housing 4, can be together with the ball-screw nut of ball-screw 3 18 reciprocating motion operation element platform 12.
In the axial direction of the both sides of the peristome 20 of housing 4, as shown in Figure 1 to Figure 3, linking side cover 8 via screw.On the upper surface 8a of side cover 8, be equipped with banded seal band 23, so that it stops up peristome 20.
In addition, banded seal band 23 preferably can cooperating platform 12 both sides 12b gradient and obtain suitable bending, there is flexible stainless steel substrates etc., for example there is the flexible thin plate being formed by magnetic material to a certain degree, have ferrite type stainless steel, the SK material etc. of PH stainless steel, the such as SUS430 etc. of martensite type stainless steel, such as SUS631, the SUS632 etc. of such as SUS440, SUS410 etc.In addition, what the Austenitic stainless steel of SUS303, SUS304, SUS316, SUS304 etc. was such does not have magnetic stainless steel substrates owing to can not being adsorbed onto on magnet 7, so can not use as banded seal band 23.
In addition, so-called elasticity, refers to the such characteristic of leaf spring producing by the elasticity of banded seal band 23.
On workbench 12, in the mode that covers workbench 12 parts except work top 34, workbench lid 16 is installed.
The upper surface 8a of the bottom of side panel 16b and front and back panel 16c and side cover 8 forms abreast, and the bottom of side panel 16b and front and back panel 16c as shown in figure 12, separates certain gap S configuration with the upper surface 8a of side cover 8.Here, certain gap S is for example as long as the less gap of 0.5mm left and right is just passable.
In the inner side of side panel 16b and front and back panel 16c, the elongated tabular slide (wiper) 37 of a slice is installed around complete cycle.
In the inner side of the front and back panel 16c of workbench lid 16, the magnet 7 being respectively equipped with by being located on side cover 8 makes banded seal band 23 be closely contacted on the seal band guidance part 16j on side cover 8.
Therefore, if banded seal band 23 becomes stationary state in both ends under the absorption affinity effect of magnet 7, sealed endless belt guidance part 16j is formed naturally bend 23a from the remainder of the banded seal band 23 of upper surface pushing by the elasticity of banded seal band 23 self.
And then, bend 23a plays by the elasticity of banded seal band 23 self application of force function that banded seal band 23 is adsorbed to magnet 7, even so there is no in addition force application mechanism, also can banded seal band 23 be adsorbed to magnet 7 by seal band guidance part 16j.
In addition, banded seal band 23 be adjusted to by between the downside of workbench lid 16 and the upside of workbench 12 but the bend 23a of the seal band 23 of band shape neither touch the top panel 16a of workbench lid 16 inner side, do not touch the such length of upper surface of workbench 12 yet.
The upper surface of workbench 12 is arcuation, does not touch in the normal state banded seal band 23, but plays installment work platform lid 16 and the complementary effect of formation bend 23a.
In addition, seal band guidance part 16j is not the structure that banded seal band 23 is pushed to magnet 7, is installed on workbench lid 16 with gap, so do not push the frictional force of banded seal band 23 with respect to the upper surface 8a of side cover 8 yet.And then, because the power in the contact portion of banded seal band 23 and seal band guidance part 16j of being applied to is also the flexible power of banded seal band 23 self, so produce hardly frictional force.
Then,, by Fig. 6, the relation of the seal band 23 to workbench 12, workbench lid 16, seal band guidance part 16j and band shape describes.
Here, size F is the axial distance of workbench lid 16, size C is the distance between seal band guidance part 16j, size X is the distance from the end face of workbench lid 16 to banded seal band (sticking on the position side cover 8) 23, size Y is the distance of the top of workbench 12 and banded seal band (sticking on the position on side cover 8) 23, size Z is the distance of seal band guidance part 16j and banded seal band (sticking on the position on side cover 8) 23, rD is the radius of curvature of banded seal band 23, rE is the radius of curvature of seal band guidance part 16j to the contact site of banded seal band 23.
The condition of present embodiment is as described below.Size Y textural be necessary.Size X wants low as far as possible.Size F wants in order to obtain the stroke of workbench 12 to shorten.Radius of curvature rD and the seal band guidance part 16j of banded seal band 23 want large as far as possible to the radius of curvature rE of the contact site of banded seal band 23 owing to having influence on the life-span of banded seal band 23.
In order to increase the radius of curvature rD of banded seal band 23 and seal band guidance part 16j to the radius of curvature rE of the contact site of banded seal band 23, need increased in size C, if but increased in size C, size F also becomes large simultaneously.
So, by the amount that makes seal band guidance part 16j float size Z, even if increased in size C not also can increase the radius of curvature rD of banded seal band 23 and the seal band guidance part 16j radius of curvature rE to the contact site of banded seal band 23.
Although expect that also can to make size C be original state by reducing size Z, in the case, radius of curvature rD and the seal band guidance part 16j of banded seal band 23 diminish to the radius of curvature rE of the contact site of banded seal band 23.
So, determine the position of seal band guidance part 16j, so that it is not the upper surface that pushes securely banded seal band 23, and can with seal band guidance part 16j push banded seal band 23 flexed portion (bend 23a) inclination midway.
And, the leading section of seal band guidance part 16j, as shown in Fig. 4, Fig. 8, arranges chamfering 16j ＇, thereby reduces and the wearing and tearing of banded seal band 23, to can avoid contacting, reducing the load of banded seal band 23 to the face of banded seal band 23, and pay durability.
Then,, with reference to Fig. 4, Fig. 5, Fig. 8, Fig. 9, Figure 10, the slide 37 being arranged on workbench lid 16 is described in detail.
On workbench lid 16, in order to accommodate slide 37, be parallel to respectively side panel 16b and front and back panel 16c and dispose hang down the side rib 16d and the front-back rib 16e that arrange from top panel 16a, spread all over the inner side complete cycle of side panel 16b and front and back panel 16c and be provided with resettlement section 16f.
In addition, seal band guidance part 16j is less than the width of banded seal band 23, does not contact, so can prevent near the both sides of banded seal band 23 deteriorated near the both sides of banded seal band 23.The width of seal band guidance part 16j is preferably 50～80% with respect to the width of banded seal band 23.
The bearing surface of the bottom surface of formation resettlement section 16f, as shown in Fig. 8 (c), is the continuous chevron being made up of protuberance 16g and recess 16h.
Then,, referring to figs. 1 through Fig. 4, the effect of the direct acting device that present embodiment is related to describes.
If the lead screw shaft 10 of ball-screw 3 is moved by the action of motor 1,, along with the rotation of lead screw shaft 10, ball-screw nut 18 is moving axially along lead screw shaft 10.Thereupon, sliding shoe 11 is along moving axially.By the movement of sliding shoe 11, workbench lid 16 moves above banded seal band 23, and workbench 12 moves below banded seal band 23.
Now, the bend 23a of banded seal band 23 also links mobile under seal band guidance part 16j effect, so banded seal band 23 can be always to move with workbench 12 and the discontiguous state of workbench lid 16, can obtain for the tension force of banded seal band 23 and be accompanied by the less dust tight construction of resistance to sliding that the friction of tension force brings.
On the upper surface 8a of side cover 8, be provided with banded seal band 23 in the mode of occlusion of openings portion 20, so can prevent that the undesirable condition that dust etc. is invaded from peristome 20 from occurring.Even in the time that workbench 12 moves, also use seal band guidance part 16j to push banded seal band 23 while move, so can always make banded seal band 23 and side cover 8 connect airtight, can prevent from invading dust from the unlapped part of workbench lid 16.
And then, by being arranged on the slide 37 on workbench lid 16, can prevent that the undesirable condition that dust etc. invades in workbench lid 16 from the gap of the upper surface 8a of workbench lid 16 and side cover 8 and banded seal band 23 from occurring, and can obtain dust tight construction.
Conventionally, this slide uses rubber or has the material of flexible synthetic resin etc., but owing to thering is elastic force, so the problem of the dimensional accuracy variation of production part.In addition due to by multiple component combinations, be certain so workbench lid 16 is also not limited to the gap of the upper surface 8a of side cover 8 and the seal band 23 of band shape.
; in the case of the size of slide 37 become the upper surface 8a of the situation less than the size of hope or workbench lid 16 and side cover 8 and the gap of banded seal band 23 become larger than the size of hope; between the upper surface 8a of slide 37 and side cover 8 and the seal band 23 of band shape, occur gap, dust can be invaded.
On the contrary, in the case of the size of slide 37 become the upper surface 8a of the situation larger than the size of hope, workbench lid 16 and side cover 8 and the gap of banded seal band 23 become less than the size of hope, resistance to sliding between the upper surface 8a of slide 37 and side cover 8 and the seal band 23 of band shape increases, and the problem that heating and durability decline occurs.
So, in the present embodiment, workbench lid 16 and the contact-making surface of slide 37 are made to the continuous chevron being made up of protuberance 16g and recess 16h, becoming can the scale error of absorption piece and the structure of the combined error of parts.
The effect of the scale error of absorption piece and the combined error of parts then, is described.
As shown in figure 11, in the case of workbench lid 16 and the contact-making surface of slide 37 are made plane, can absorb above-below direction scale error be only the elastic force of slide 37 self, so in the situation that having there is error to compression direction, the entirety of slide 37 is compressed and repulsion occurs, and this repulsion former state has been brought the increase of resistance to sliding.
To this, as shown in figure 10, by workbench lid 16 and the contact-making surface of slide 37 are made to the continuous chevron being made up of protuberance 16g and recess 16h, even in the situation that having there is error to compression direction, a part for compressed slide 37 is also made a concession to recess 16h, can carry out the distortion more than elastic force of slide 37 self.
In addition, by installing under the state in advance slide 37 being compressed slightly, even the in the situation that of gap enlargement, also slide 37 and the gap of the upper surface 8a of side cover 8 and the seal band 23 of band shape can be stopped up.
Thereby, even in the case of the scale error of parts or the combined error of parts larger, also can prevent the intrusion of dust, obtain reliable dust tight construction so can not increase cost.
Then, to be formed on the chevron on the contact-making surface of workbench lid 16 and slide 37 quantity, mountain height according to describing.
Experimental result can be confirmed, the quantity on mountain is preferably 4～6 mountains in the axial direction, on Width, is 3～4 mountains, the height on mountain is considered taking the height of slide 37 as benchmark, compression ratio is 5～15%, preferred, if more than becoming it, friction increases, and heating and durability decline, and the resistance to sliding of direct acting device increases.
Here, compression ratio (%) is 1-(H-D)/H × 100.In formula, H represents the height of slide 37, and D represents that their pass ties up in Figure 12 and represents by the amount of the mountain compression of slide 37 use workbench lids 16.
In addition, only insert by the groove that makes the elongated tabular slide 37 of a slice surround four limits that formed by resettlement section 16f, just can carry out the installation of slide 37, so the installation of slide 37 is simpler.In addition, it is bonding etc. that seam does not need to carry out especially yet, makes slide 37 by a slice, so all favourable on cost, in manufacture.
In addition, in the above-described embodiment, situation about inserting tabular slide 37 elongated a slice is surrounded to the groove on four limits that are made up of resettlement section 16f is illustrated, but the present invention is not limited to this.
For example, as shown in figure 13, at direct acting device that present embodiment is related to as wall hanging uses, as long as do not adhere to dust on banded seal band 23, even if it is upper that slide 37 is only arranged on to two seal band side contacts face 37b, also can prevent the intrusion of dust.
In addition, as shown in figure 13, in the case of the direct acting device horizontal positioned about present embodiment is used, dust easily remains on banded seal band 23, even so only slide 37 is installed on the front and back panel 16c of the moving direction of workbench 12, also can prevent the intrusion of dust.
As shown in figure 13, by reducing the installation position of slide 37, can reduce resistance to sliding.
But, in the environment dancing in the air in space at pulverous dust, preferably, as the direct acting device that above-mentioned execution mode relates to, tabular slide 37 elongated a slice is surrounded to the groove on four limits that are made up of resettlement section 16f and inserts.
In addition, in the above-described embodiment, be illustrated for the situation that slide 37 is arranged on workbench lid 16, but the present invention is not limited to this, for example also can be as shown in Figure 14, at the lower surface of workbench 12, with the same resettlement section that slide 37 is set of resettlement section 16f of workbench lid 16.
In addition, the installation of slide 37 as in the installation to workbench lid 16 descriptively, can be both complete cycle, can be also a part.
In addition, in the above-described embodiment, be illustrated for the situation that workbench lid 16 and the contact-making surface of slide 37 have been made to the continuous chevron being made up of protuberance 16g and recess 16h, but the present invention is not limited to this, for example also workbench lid 16 and the contact-making surface of slide 37 can be made make workbench lid 16 for plane, make slide 37 for chevron.
In addition, in the above-described embodiment, be illustrated for the situation that workbench lid 16 and the contact-making surface of slide 37 have been made to the continuous chevron being made up of protuberance 16g and recess 16h, but the present invention is not limited to this, for example workbench lid 16 can be also the waveform being linked by level and smooth curve with the contact-making surface of slide 37, also can only protuberance 16g part be made to rib shape.
In addition, in the above-described embodiment, be illustrated for the situation that workbench lid 16 and the contact-making surface of slide 37 have been made to the continuous chevron being made up of protuberance 16g and recess 16h, but the present invention is not limited to this, for example also can in the 16f of resettlement section, spring be set, with spring pushing slide 37.
In addition, in the above-described embodiment, situation about inserting for tabular slide 37 elongated a slice is surrounded to the groove on four limits that are made up of resettlement section 16f is illustrated, but the present invention is not limited to this, for example, can be also that four limits are cut apart, connected in the mode of not offering gap.
In addition in the above-described embodiment, be illustrated for the situation that uses magnet 7 to adsorb banded seal band 23, but the present invention is not limited to this, for example, also can use the material with self bonding.In the case, banded seal band 23 is not limited to magnetic material, can be also the other materials such as nonmagnetic substance.In addition, as the material with self bonding, for example, there are silicon rubber, polyurethane or are coated with polyurethane of adhesives etc.
In addition, in the above-described embodiment, be illustrated for the situation that the workbench lid 16 that is provided with seal band guidance part 16j is arranged on workbench 12, but the present invention is not limited to this, for example as shown in figure 14, also workbench lid 16 can be saved, on the front-back of the length direction of workbench 12, seal band guidance part 12e is set integratedly.
(the second execution mode)
Figure 15 to Figure 18 represents the direct acting device that the second execution mode of the present invention relates to.
Direct acting device has the bearing capacity in order to increase workbench 12 and requires the situation of the length that adds bench 12.
But, in the direct acting device relating at the 1st execution mode, if want to increase the bearing capacity of workbench 12, workbench 12 as shown in Figure 3, because both sides are in the longitudinal direction formed with the recess 12c that side cover 8 enters, so tapered portion 12d in the middle of being formed with on workbench 12, likely the intensity of workbench 12 can decline.
So, in the present embodiment, by adding the length of bench 12 sectional area of the middle tapered portion 12d of increase, can increase the bearing capacity of workbench 12.
And, if make the bend 23a of banded seal band 23 of the upside by workbench 12 elongated, the seal band guidance part 16j place on the two ends that are arranged at workbench 12 only, the upper surface of banded seal band 23 spreads all over the interior side contacts to workbench lid 16 on a large scale, has the rub resistance to sliding bringing, the situation of component wear of producing.
So, in the direct acting device relating in present embodiment, sliding shoe 11 is connected and is linked two and configure, and appended seal band guidance part 16k to the inner side of workbench lid 16 of middle position of seal band guidance part 16j at the two ends that are located at workbench 12.
Other structures are identical with the direct acting device that has used the first execution mode of 1 sliding shoe 11 to relate to.
Then, in the present embodiment, reason that seal band guidance part 16k is preferably set on the middle position of workbench 12 describes.
A. the deflection of the bend 23a while movement for anti-skidding piece 11, need to be divided into two equably by bend 23a.Therefore, preferred middle seal band guidance part 16k is located near the central authorities of seal band guidance part 16j at the two ends of being located at workbench 12.
B. the deflection of the bend 23a while movement for anti-skidding piece 11, need to be divided into two equably by bend 23a.Therefore, preferably the lower surface of middle seal band guidance part 16k is the low position, summit of the bend 23a of two in score.
C. in order to prevent near the both sides of banded seal band 23 deteriorated, the width of middle seal band guidance part 16k is preferably identical with the width of seal band guidance part 16j at two ends that is located at workbench 12, and is 50～80% with respect to the width of banded seal band 23.
In addition, the leading section of seal band guidance part 16k as shown in figure 18, same with the chamfering 16j ＇ of leading section that is located at seal band guidance part 16j, chamfering 16k ＇ is set to can avoid reducing to the face contact of banded seal band 23 load of banded seal band 23, pay durability etc., thereby reduce and the wearing and tearing of banded seal band 23.
In addition, in the present embodiment, link the situation of configuration and be illustrated for sliding shoe 11 being divided into two and series connection, but the present invention is not limited to this, also can make the total length of 1 sliding shoe 11 elongated.
In addition, in the above-described embodiment, for using ball-screw 3 to be illustrated as the situation of driver, but the present invention is not limited to this, for example, can be also hydraulic cylinder or the linear motor that uses fluid.
Claims (16)
1. a direct acting device, is characterized in that, possesses:
Housing, is formed with peristome in the longitudinal direction;
Side cover, is located at the both sides of the length direction of above-mentioned peristome along above-mentioned peristome;
Attachment members, is located at the above-mentioned peristome side separately of above-mentioned side cover along above-mentioned peristome;
Slide block, has erected workbench, makes above-mentioned workbench more outstanding than above-mentioned peristome, and is accommodated freely along the length direction reciprocating motion of above-mentioned housing;
Seal band, covers the mode of the length direction of above-mentioned peristome to cross over the upper surface of above-mentioned workbench, both ends are fixed on above-mentioned housing, and both sides are fixed by above-mentioned attachment members; And
Seal band guidance part, in the time of above-mentioned movable workbench, making above-mentioned seal band on the length direction of above-mentioned workbench, form with above-mentioned workbench is the bend of contact condition not;
Above-mentioned seal band have under contact condition not, cross over above-mentioned workbench upper surface and by the length of above-mentioned peristome shutoff;
In the time that above-mentioned seal band is crossed over the upper surface of above-mentioned workbench, above-mentioned seal band guidance part contacts with above-mentioned seal band and makes above-mentioned seal band bending, become and the discontiguous state of above-mentioned workbench, and producing active force, this active force makes not the above-mentioned seal band of crossing over the region of the upper surface of above-mentioned workbench under contact condition not fix to above-mentioned attachment members.
2. direct acting device as claimed in claim 1, is characterized in that,
Above-mentioned seal band guidance part is located on the front and rear part of above-mentioned length direction of above-mentioned workbench.
3. direct acting device as claimed in claim 1, is characterized in that,
Above-mentioned seal band guidance part hangs down towards the upper surface of above-mentioned side cover from the upper surface of above-mentioned workbench, and separates gap configuration with respect to the upper surface of above-mentioned side cover.
4. direct acting device as claimed in claim 2, is characterized in that,
Above-mentioned seal band guidance part hangs down towards the upper surface of above-mentioned side cover from the upper surface of above-mentioned workbench, and separates gap configuration with respect to the upper surface of above-mentioned side cover.
5. direct acting device as claimed in claim 1, is characterized in that,
Above-mentioned seal band guidance part is located at the front and rear part of the above-mentioned length direction of workbench lid, and this workbench lid is installed on above-mentioned workbench.
6. direct acting device as claimed in claim 5, is characterized in that,
Above-mentioned seal band guidance part hangs down towards the upper surface of above-mentioned side cover from the upper surface of above-mentioned workbench lid, and separates gap configuration with respect to the upper surface of above-mentioned side cover.
7. the direct acting device as described in any one in claim 1～6, is characterized in that,
The upper surface of above-mentioned workbench is formed as the front and rear part arch lower than central portion of above-mentioned length direction.
8. the direct acting device as described in any one in claim 1～6, is characterized in that,
Above-mentioned attachment members is flat thin magnet;
Above-mentioned seal band is made up of magnetic material.
9. the direct acting device as described in any one in claim 1～6, is characterized in that,
Above-mentioned attachment members is silicon rubber, polyurethane or the polyurethane that has applied bonding agent.
10. the direct acting device as described in any one in claim 1～6, is characterized in that,
Above-mentioned workbench possesses:
Maintaining part, is located on the complete cycle of above-mentioned workbench, inserts and keeps slide; And
Pushing portion, is located on the contact-making surface contacting with above-mentioned slide on the bottom surface of above-mentioned maintaining part, and above-mentioned slide is pushed to above-mentioned housing direction.
11. direct acting devices as claimed in claim 10, is characterized in that,
Above-mentioned pushing portion forms by the contact-making surface contacting with above-mentioned slide of above-mentioned bottom surface is made to concaveconvex shape.
12. direct acting devices as described in claim 5 or 6, is characterized in that,
Above-mentioned workbench lid possesses:
Maintaining part, is located on the complete cycle of above-mentioned workbench lid, inserts and keeps slide; And
Pushing portion, is located on the contact-making surface contacting with above-mentioned slide on the bottom surface of above-mentioned maintaining part, and above-mentioned slide is pushed to above-mentioned housing direction.
13. direct acting devices as claimed in claim 12, is characterized in that,
Above-mentioned pushing portion forms by the contact-making surface contacting with above-mentioned slide of above-mentioned bottom surface is made to concaveconvex shape.
14. direct acting devices as described in any one in claim 1～6, is characterized in that,
Above-mentioned slide block comprises two parts, and on the length direction of above-mentioned housing configured in series.
15. direct acting devices as claimed in claim 14, is characterized in that,
Above-mentioned seal band guidance part is located on the front and rear part and pars intermedia of above-mentioned length direction of workbench lid, and this workbench lid is installed on above-mentioned workbench.
16. direct acting devices as described in any one in claim 1～6, is characterized in that,
The width of above-mentioned seal band guidance part is 50～80% with respect to the width of above-mentioned seal band.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009146043 | 2009-06-19 | ||
| JP2009-146043 | 2009-06-19 | ||
| JP2010005086A JP5417190B2 (en) | 2009-06-19 | 2010-01-13 | Linear motion device |
| JP2010-005086 | 2010-01-13 | ||
| CN201010206003.2A CN101931285B (en) | 2009-06-19 | 2010-06-17 | Direct acting device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010206003.2A Division CN101931285B (en) | 2009-06-19 | 2010-06-17 | Direct acting device |
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| CN103904819A true CN103904819A (en) | 2014-07-02 |
| CN103904819B CN103904819B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410385601.9A Active CN104265851B (en) | 2009-06-19 | 2010-06-17 | Linear Moving Device |
| CN201410091571.0A Active CN103904819B (en) | 2009-06-19 | 2010-06-17 | Direct acting device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410385601.9A Active CN104265851B (en) | 2009-06-19 | 2010-06-17 | Linear Moving Device |
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| JP (1) | JP5417190B2 (en) |
| CN (2) | CN104265851B (en) |
| TW (3) | TWI516692B (en) |
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| CN106981944A (en) * | 2017-05-11 | 2017-07-25 | 中国美术学院 | Linear drive apparatus |
| CN104842340B (en) * | 2015-03-17 | 2019-08-27 | 上海云永自动化科技有限公司 | A kind of dust-proof straight line slide unit |
| CN110878796A (en) * | 2018-09-05 | 2020-03-13 | 上银科技股份有限公司 | Low-dust-emission linear module |
| CN112475940A (en) * | 2020-10-30 | 2021-03-12 | 苏州舍勒智能科技有限公司 | Embedded sliding module with adjustable horizontal angle |
| CN114310461A (en) * | 2021-12-30 | 2022-04-12 | 广东普拉迪科技股份有限公司 | Lead screw protective structure |
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| TWI458902B (en) * | 2012-05-02 | 2014-11-01 | Academia Sinica | Linear actuating module |
| CN104750106A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业（深圳）有限公司 | Single axis robot |
| US10935075B2 (en) | 2018-10-22 | 2021-03-02 | Hiwin Technologies Corp. | Low dust linear module |
| KR102127198B1 (en) * | 2018-11-01 | 2020-06-29 | 하이윈 테크놀로지스 코포레이션 | Low dust linear module |
| KR200492867Y1 (en) * | 2019-04-09 | 2020-12-24 | 하이윈 테크놀로지스 코포레이션 | Low dust linear module |
| KR200492107Y1 (en) * | 2019-05-17 | 2020-08-10 | 하이윈 테크놀로지스 코포레이션 | Dustproof assembly for linear actuator |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI564493B (en) | 2017-01-01 |
| TW201527666A (en) | 2015-07-16 |
| CN104265851B (en) | 2017-04-12 |
| CN104265851A (en) | 2015-01-07 |
| TWI568954B (en) | 2017-02-01 |
| TW201527665A (en) | 2015-07-16 |
| JP5417190B2 (en) | 2014-02-12 |
| CN103904819B (en) | 2017-07-04 |
| JP2011021744A (en) | 2011-02-03 |
| TW201100671A (en) | 2011-01-01 |
| TWI516692B (en) | 2016-01-11 |
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