CN201747780U - Linear motion module - Google Patents

Abstract

The utility model relates to linear motion module, including a linear track body, a slide carriage and a plurality of rolling balls; at least two inner reflux grooves are disposed on the inner side of the slide carriage body with respect to track grooves; inner reflux grooves and track grooves form an inner reflux channel together; at least two outer reflux grooves are disposed on the outer side of the slide carriage body; reflux elements are respectively connected on the outer side of the slide carriage body; each reflux element is provided with at least a reflux groove with respect to the outer reflux groove; and outer reflux grooves and the reflux groove form an outer reflux channel together. End covers are respectively arranged on two end surfaces of the slide carriage body and each end cover is respectively provided with at least two reflux guiding grooves correspondingly jointed with inner and outer reflux channels. Therefore, the utility model reduces interference of rolling balls in the channel owing to undersize of turning radii of rolling balls and strengthens the rigidity of the slide carriage body.

Description

Linear Moving Module

Technical field

The utility model is about a kind of Linear Moving Module, especially in regard to a kind of Linear Moving Module without offset.

Background technique

In Linear Moving Module, for being seen through on a limited number of ball consistently online track body, slide advances, and generally be to reach by the mode that the ball return flow line is set.Utilize the ball return flow line, ball can return between linear track body and the slide after each slide passes through again again, and its function continues.

Fig. 1 is a kind of sectional drawing of known Linear Moving Module.Please refer to shown in Figure 1ly, known Linear Moving Module 1 comprises a linear track body 11, a slide 12 and a plurality of ball 13.Linear track body 11 is provided with rail slot 111, and slide 12 inboards then are provided with interior back flash 121, and both form the interior return flow line R of ball operation jointly.In addition, slide 12 is provided with exteenal reflux passage 122, and ball by behind reflux guiding bend (figure does not show) and the exteenal reflux passage 122, is returned between linear track body 11 and the slide 12 in regular turn again.

For at the splendid slide 12 of rigidity exteenal reflux passage 122 being set, known technology is the mode of borehole processing.Utilizing an end face of slide 12 is reference levels, implements boring running through whole slide 12 by the other end, or is reference level alternately with the both ends of the surface of slide 12, implements boring and connecting pipe, forms exteenal reflux passage 122 at last.

Yet the known known technology making exteenal reflux passage that utilizes remains in subproblem.The first, because the end face of slide is not plane accurately, can influences the accuracy of location as reference level, and, also can strengthen error degree because of thermal distortion again via behind the follow-up heat treatment step.Moreover boring adds trade union and forms tapering in the two ends, return flow line outside, makes caliber to unify.The 3rd, the boring difficult processing influences the level and smooth degree of exteenal reflux passage to avoid and can form offset on surface channel.The problems referred to above all can cause Linear Moving Module to send big noise when start.In addition, the existence of these offsets also can cause ball in the process of high speed scroll, produce to pause or loses stablely, even causes component wear.

Therefore, how to provide a kind of Linear Moving Module, it has return flow line without offset, and the stability in the time of can promoting start, noise-decreasing and be suitable for working at high speed have become one of important topic.

The model utility content

The purpose of this utility model provides a kind of Linear Moving Module, by different structural designs, improves the convenience and the precision of processing and assembling, more improves the precision and the flatness of finished surface.

The purpose of this utility model provides a kind of Linear Moving Module, and the junction point of return flow line and backflow guide slot and/or exteenal reflux passage and backflow guide slot is that essence does not have offset in making, stability, the noise-decreasing during the raising start and be suitable for working at high speed.

The purpose of this utility model provides a kind of Linear Moving Module, need not to make the exteenal reflux passage in the boring of slide body, whole circulation canal is by the most inboard outermost that extends to of slide body, strengthen ball advances to the exteenal reflux passage in interior return flow line the turning radius, reduce ball because of the too small problem of interfering of the turning radius with passage.

A kind of Linear Moving Module of the present utility model comprises a linear track body, a slide and a plurality of ball.Linear track body both sides are respectively provided to few rail slot.Slide is slidingly installed in the linear track body, and slide comprises a slide body, at least two back-flow components and two end caps.At least two interior back flashes of the inboard respective carter groove setting of slide body, interior back flash and rail slot are common to constitute an interior return flow line, and at least two exteenal reflux grooves of slide body arranged outside.Back-flow component is attached at the outside of slide body respectively, and the corresponding exteenal reflux groove of each back-flow component is provided with at least one back flash, exteenal reflux passage of the common formation of exteenal reflux groove and back flash.End cap is separately positioned on the both ends of the surface of slide body, and each end cap is respectively provided to few two backflow guide slots with interior return flow line and the corresponding joint of exteenal reflux passage.The motion of described ball-recirculation in interior return flow line, one of them backflow guide slot, exteenal reflux passage and another backflow guide slot.

In an embodiment of the present utility model, the junction point of interior return flow line and backflow guide slot and/or exteenal reflux passage and backflow guide slot is that essence does not have offset, that is, be still in the alleged essence of the utility model scope without offset because of a little error of processing or assembly precision caused.

In an embodiment of the present utility model, interior back flash and/or exteenal reflux groove are to make by the abrasive machining mode.

In an embodiment of the present utility model, back-flow component is by fastening with the binding of slide body, engage, bonding, sealed, screw togather, mode chimeric or its combination reaches.

In an embodiment of the present utility model, back-flow component has a guard member, and guard member is arranged on the back flash.

In an embodiment of the present utility model, the two ends of interior back flash have a depressed part respectively, each back-flow component is attached at the corresponding respectively depressed part of a side of slide body and a bump is set, and back-flow component is attached at the outside of slide body by bump and being connected of depressed part.

In an embodiment of the present utility model, slide also comprises at least two ball holders, and the ball holder is corresponding with interior back flash respectively setting.

In an embodiment of the present utility model, slide also comprises at least two stiffeners, is separately positioned on end cap, to strengthen the rigidity and the intensity of end cap, prevents distortion.

From the above, according to Linear Moving Module of the present utility model, its structure is that the exteenal reflux groove is arranged on the slide body outside, and further constitute the exteenal reflux passage jointly with the back flash of back-flow component, make the making of exteenal reflux passage no longer be confined to before the heat treatment to the processing of holing of slide body, cause the boring distortion of slide body after the heat treatment and produce error, influence the precision of product.The utility model is not only by different structural designs, can eliminate because the harmful effect of boring causes structure or function, the slide body carries out abrasive machining after heat treatment, the unlikely precision that influences product, more improve the precision and the flatness of finished surface, improve the convenience of processing and assembling.Moreover the junction point of interior return flow line and backflow guide slot and/or exteenal reflux passage and backflow guide slot is that essence does not have offset, stability, the noise-decreasing when improving start and be suitable for working at high speed.

Compare with known technology, Linear Moving Module of the present utility model, based on structural design, overcome in the known boring course of working, locate the inaccurate problem that reaches heat treatment deformation because of using multiple reference level to cause, also can eliminate in the ball return flow line, caliber exists tapering or channel surface roughness etc. to influence the unfavorable factor of ball operation, the noise that produces when helping to reduce the start of Linear Moving Module structure, the stability when improving start simultaneously.In addition, because whole circulation canal by the most inboard outermost that extends to of slide body, strengthens ball advances to the exteenal reflux passage in interior return flow line the turning radius, reduce ball because of the too small problem of interfering of the turning radius with passage, and the rigidity of reinforcement slide body, be more suitable for the high speed start.

Description of drawings

Fig. 1 is the schematic representation of known a kind of Linear Moving Module;

Fig. 2 is the schematic representation according to a kind of Linear Moving Module of the utility model embodiment;

Fig. 3 is the exploded view of Linear Moving Module shown in Figure 2;

Fig. 4 is the schematic representation of slide body shown in Figure 3;

Fig. 5 is the schematic representation of back-flow component shown in Figure 3;

Fig. 6 is the slide body shown in Figure 3 and the constitutional diagram of back-flow component; And

Fig. 7 is the sectional drawing of Linear Moving Module shown in Figure 2.

The primary component symbol description:

(known)

1: Linear Moving Module

11: the linear track body

111: rail slot

12: slide

121: interior back flash

122: the exteenal reflux passage

13: ball

R: interior return flow line (the utility model)

2: Linear Moving Module

21: the linear track body

211: rail slot

22: slide

221: the slide body

222: back-flow component

223: end cap

224: interior back flash

225: the exteenal reflux groove

226: back flash

227: the backflow guide slot

228: guard member

229: the ball holder

23: ball

CC: depressed part

CG: curved groove refluxes

CV: bump

DP1, DP2: dust guard

DP3, DP4: end cap dust guard

ES: end face

H: screw

R1: interior return flow line

R2: exteenal reflux passage

SS: supporting plane

D: distance

R: the turning radius

Embodiment

Hereinafter with reference to correlative type, a kind of Linear Moving Module according to the utility model embodiment is described, wherein components identical will be illustrated with the components identical symbol.

Fig. 2 is the schematic representation according to a kind of Linear Moving Module of the present utility model, and Fig. 3 is the exploded view of Linear Moving Module shown in Figure 2.Please also refer to Fig. 2 and shown in Figure 3, comprise a linear track body 21, a slide 22 and a plurality of ball 23 according to Linear Moving Module 2 of the present utility model.Linear track body 21 both sides are respectively provided to few rail slot 211.Slide 22 is slidingly installed in linear track body 21, and slide 22 comprises a slide body 221, at least two back-flow components 222 and two end caps 223.Slide body 221 inboard respective carter grooves 211 are provided with at least two interior back flashes 224, interior return flow line R1 of interior back flash 224 and rail slot 211 common formations, and at least two exteenal reflux grooves 225 of slide body 221 arranged outside.Back-flow component 222 is attached at the outside of slide body 221 respectively, and each back-flow component 222 corresponding exteenal reflux groove 225 is provided with at least one back flash 226, exteenal reflux passage R2 of exteenal reflux groove 225 and back flash 226 common formations.End cap 223 is separately positioned on the both ends of the surface ES of slide body 221, and each end cap 223 is respectively provided to few two backflow guide slots 227 with interior return flow line R1 and the corresponding joint of exteenal reflux passage R2.Described ball 23 shuttling movements are at interior return flow line R1, one of them backflow guide slot 227, exteenal reflux passage R2 and another backflow guide slot 227.

According to Linear Moving Module 2 of the present utility model, its linear track body 21 both sides can be provided with one or more rail slot 211 respectively, and the Linear Moving Module 2 that will two rail slots 211 be set respectively with linear track body 21 both sides in the present embodiment is an example, and technical characteristics of the present utility model is described.Certainly, linear track body 21 both sides also can be provided with the rail slot 211 of other number respectively, and there is no particular restriction in the application.

Please refer to shown in Figure 4ly, the inboard respective carter grooves 211 of slide body 221 are provided with at least two interior back flashes 224, and interior back flash 224 and rail slot 211 are common to constitute an interior return flow line R1, and at least two exteenal reflux grooves 225 of slide body 221 arranged outside.In the present embodiment, inboard corresponding four rail slots 211 of slide body 221 and four interior back flashes 224 are set, and four interior return flow line R1 of four interior back flashes 224 and four rail slots, 211 common formations.In addition, slide body 221 outsides also are that four exteenal reflux grooves 225 are set, with corresponding four interior return flow line R1.In addition, in the present embodiment, slide body 221 is ironwares, and back flash 224 and/or exteenal reflux groove 225 are by for example but do not limit in abrasive machining method mode and make in it.

Specifically, in the process of grinding, supporting plane SS that can slide body 221 is a reference level, and abrasive machining is implemented in the inboard and the outside of slide body 221 at the same time or separately.Because being Linear Moving Module 2, supporting plane SS itself is connected with other device or the reference level of combination, so be the accurate positioning that the reference level of grinding can further be guaranteed back flash 224 and exteenal reflux groove 225 in each with supporting plane SS.In addition, again because in the processing procedure of slide body 221, the abrasive machining step can be carried out after heat treatment, so can avoid influencing the precision of interior back flash 224 and exteenal reflux groove 225.

Compare the mode in known boring processing, abrasive machining can be implemented on the whole surface at interior back flash 224 and/or exteenal reflux groove 225 once, so the groove face of interior back flash 224 and/or exteenal reflux groove 225 is that essence does not have offset.Yet what need to specify is, not have offset be to contain because of processing, assembly precision or a little error that other external factor caused to alleged essence in the utility model.

Please refer to shown in Figure 5ly, back-flow component 222 is attached at the outside of slide body 221 respectively, and each back-flow component 222 corresponding exteenal reflux groove 225 is provided with at least one back flash 226, and exteenal reflux groove 225 and back flash 226 be common to constitute an exteenal reflux passage R2.In the present embodiment, the binding of each back-flow component 222 and slide body 221 can be by fastening, engage, bonding, mode sealed, chimeric or its combination reach, and be to be carried out to the direction at center by slide body 221 left and right sides.In the present embodiment, back-flow component 222 is to reach by the mode that engages with the binding of slide body 221.

Specifically, please also refer to Fig. 4 to shown in Figure 6, the two ends of interior back flash 224 have a depressed part CC respectively, each back-flow component 222 is attached at the corresponding respectively depressed part CC of a side of slide body 221 and a bump CV is set, and back-flow component 222 is by the bump CV and the outside (as shown in Figure 6) that is attached at slide body 221 being connected of depressed part CC.In addition, please also refer to Fig. 3 and shown in Figure 6, when back-flow component 222 and slide body 221 link finish after, the mode that can again end cap 223 be utilized fastening, engaging, bonding, sealed, chimeric or its combination simultaneously and both link.Please also refer to Fig. 4 and shown in Figure 5, in the present embodiment, also has screw H on slide body 221 and the back-flow component 222 respectively, be beneficial to by slide body 221 front sides with screw closure end cap 223, back-flow component 222 and slide body 221, stablize the binding of back-flow component 222 and slide body 221.

Each back-flow component 222 corresponding exteenal reflux groove 225 is provided with at least one back flash 226, exteenal reflux passage R2 of exteenal reflux groove 225 and back flash 226 common formations.Please refer to shown in Figure 5ly, in the present embodiment, each back-flow component 222 corresponding two exteenal reflux grooves 225 are provided with two back flashes 226, and two exteenal reflux passage R2 of two exteenal reflux grooves 225 and two back flashes, 226 common formations.Yet this is the configuration that has many back flashes 226 for single back-flow component 222, and in other embodiment of the present utility model, every back flash 226 also can independently be arranged on the back-flow component 222.In addition, in the present embodiment, the material of back-flow component 222 can for example be plastics, and is the one-body molded element of making by ejection formation, so the surface of the back flash 226 on the back-flow component 222 is no offsets.Certainly, the material of back-flow component 222 and the mode of making also can be other and can reach identical effect person, for example metalwork and abrasive machining mode, and there is no particular restriction in the application.

Please refer to shown in Figure 3ly, end cap 223 is separately positioned on the both ends of the surface ES of slide body 221, and each end cap 223 is respectively provided to few two backflow guide slots 227 with interior return flow line R1 and the corresponding joint of exteenal reflux passage R2.In the present embodiment, each end cap 222 is provided with respectively in the left and right sides two backflow guide slots 227 with interior return flow line R1 and the corresponding joint of exteenal reflux passage R2 is set respectively.In the present embodiment, backflow guide slot 227 is curved grooves that an essence is the U font, match with the curved groove CG of a backflow that is provided with on the back-flow component 222, leave interior return flow line R1 and enter exteenal reflux passage R2 with guiding ball 23, or guiding ball 23 leaves exteenal reflux passage R2 and enters interior return flow line R1.In addition, in other embodiment of the present utility model, for strengthening the ability of guiding ball 23, the backflow guide slot 227 and/or the curved groove CG that refluxes can also comprise a plurality of backflow guide member (not shown).

Please refer to shown in Figure 6, in the present embodiment, because interior back flash 224 and/or exteenal reflux groove 225 are to make by the abrasive machining mode, so accurate positioning and non-heat-treated deformation effect, therefore after back-flow component 222, slide body 221 linked, the junction point of interior return flow line R1 and backflow guide slot 227 and/or exteenal reflux passage R2 and backflow guide slot 227 was that essence does not have offset.

Please refer to shown in Figure 3, configuration according to Linear Moving Module 2 of the present utility model, make ball 23 be able to shuttling movement, continue to advance to assist slide block 22 at interior return flow line R1, one of them backflow guide slot 227, exteenal reflux passage R2 and another backflow guide slot 227.

Please refer to shown in Figure 7ly, in the present embodiment,,, interior back flash 224 be can be formed directly on the outermost surfaces of slide body 221 so in processing procedure, can save the required headspace of boring processing because interior back flash 224 is to make in the abrasive machining mode.In this configuration, have greatlyyer apart from d between interior return flow line R1 that corresponds to each other and exteenal reflux passage R2, and whole circulation canal can strengthen the turning radius r of ball 23 by the most inboard outermost that extends to of slide body 221, reduce ball 23 because of the too small problem of interfering of turning radius r with passage

In view of the above,, can utilize its structural design, improve the convenience and the precision of processing and assembling according to Linear Moving Module of the present utility model.In addition, again because the no offset characteristic of return flow line, the noise when helping to reduce the Linear Moving Module start, and improve the device stability.

In addition, in the present embodiment, at least one of them end cap is provided with an oil storage tank and a lubrication channel, to provide and to carry required at the volley lubricant oil of ball 23 or oiling agent, reduces each the interelement abrasion in ball 23 and linear track body 21 and the slide 22 whereby.

Please refer to shown in Figure 3ly, in the present embodiment, each back-flow component 222 has a guard member 228, and guard member 228 is arranged on the back flash 226.。Furthermore, guard member 228 is arc metal plates, and its angle is corresponding with the groove face of back flash 226.When Linear Moving Module 2 motions, guard member 228 is set can avoids directly contacting with back flash 226 because of ball 23, cause the wearing and tearing of back flash 226.Moreover guard member 228 also can be used as the skeleton of back-flow component 222 ejection formations, strengthens the intensity of back-flow component 222, prevents its distortion.

Please refer to shown in Figure 3ly, according to Linear Moving Module 2 of the present utility model, slide 22 can also comprise at least two ball holders 229, and ball holder 229 be respectively with interior back flash 224 corresponding settings.In the present embodiment, slide 22 also comprises five ball holders 229 (being divided into a tabular ball holder 229 and two groups of strip ball holders 229), the corresponding respectively upper and lower that back flash 224 in each is set.In fact, please refer to shown in Figure 7, the tabular ball holder 229 of the top is folded in the interior return flow line R1 in top two ends up and down with middle strip ball holder 229, and middle strip ball holder 229 and the strip ball holder 229 of below are folded in the below return flow line R1 two ends up and down, to keep ball 23 unlikely coming off when slide 22 separates with linear track body 21.

Please refer to shown in Figure 3, in the present embodiment, slide 22 also comprises at least two dust guard DP1, and described dust guard DP1 links the bottom side of slide 22, slide 22 also comprises two dust guard DP2, and described dust guard DP2 then is folded between linear track body 21 upsides and the tabular ball holder 229.Dust guard DP1 and DP2 are used in jointly and stop that dust or foreign matter two spaces enter Linear Moving Module 2 inside by linear track body 21 and slide body about in the of 221.In addition, same with reference to shown in Figure 3, in the present embodiment, slide 22 can also comprise a front cover dust guard DP3 and a rear end cover dust guard DP4, be separately positioned on the opposite side of end cap 222 opposing end surface ES, its function also is to be used in to prevent that foreign matter is inner by slide 22 front ends or rear end intrusion.

In addition, please refer to shown in Figure 3ly, in the present embodiment, slide 22 also can comprise at least two stiffeners (figure show), and it is separately positioned on end cap 223, to strengthen the rigidity and the intensity of end cap 223, prevents distortion.

In sum, according to Linear Moving Module of the present utility model, see through by the exteenal reflux groove that is arranged on the slide body outside, form the structure characteristic of exteenal reflux passage jointly with the back flash of back-flow component, make the mode of making the exteenal reflux passage no longer be confined to boring processing, and can locate more accurate, heat-treated influence and form the more smooth processing method of channel surface and finish.Therefore, according to the Linear Moving Module a kind of without offset that Linear Moving Module of the present utility model can claim, it is eliminated the two ends, return flow line and has tapering, and the coarse unfavorable factor that influences the ball operation that waits of channel surface, the noise that produces when reducing start, and promote stability.In addition, be to make owing to the exteenal reflux passage again with non-bore mode, thus must not keep processing space, and can strengthen ball advances to the exteenal reflux passage in interior return flow line the turning radius, reduce ball because of the too small problem of interfering of the turning radius, be more conducive to working at high speed with passage.

The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present utility model and category, and, all should be included in the claim institute restricted portion its equivalent modifications of carrying out or change.

Claims (10)

1. a Linear Moving Module is characterized in that, comprising:

One linear track body, both sides are respectively provided to few rail slot;

One slide is slidingly installed in described linear track body, and described slide comprises:

One slide body, at least two interior back flashes of inboard corresponding described rail slot setting, described interior back flash and described rail slot are common to constitute an interior return flow line, and at least two exteenal reflux grooves of described slide body arranged outside;

At least two back-flow components are attached at the outside of described slide body respectively, and the corresponding described exteenal reflux groove of each described back-flow component is provided with at least one back flash, and exteenal reflux passage of described exteenal reflux groove and the common formation of described back flash; And

Two end caps are separately positioned on the both ends of the surface of described slide body, and each described end cap is respectively provided to few two backflow guide slots with described interior return flow line and the corresponding joint of described exteenal reflux passage; And

A plurality of balls, shuttling movement are return flow line, one of them backflow guide slot, described exteenal reflux passage and another backflow guide slot in described.

2. Linear Moving Module according to claim 1 is characterized in that, the junction point of described interior return flow line and described backflow guide slot and/or described exteenal reflux passage and described backflow guide slot is that essence does not have offset.

3. Linear Moving Module according to claim 1 is characterized in that, described interior back flash and/or described exteenal reflux groove are to make by the abrasive machining mode.

4. Linear Moving Module according to claim 1 is characterized in that, described back-flow component is by fastening with the binding of described slide body, engage, bonding, sealed, screw togather, mode chimeric or its combination reaches.

5. Linear Moving Module according to claim 1 is characterized in that, each described back-flow component has a guard member, and described guard member is arranged on described back flash.

6. Linear Moving Module according to claim 1, it is characterized in that, the two ends of back flash had a depressed part respectively in each was described, each described back-flow component is attached at the corresponding respectively described depressed part of a side of described slide body and a bump is set, and described back-flow component is attached at the outside of described slide body by described bump and being connected of described depressed part.

7. Linear Moving Module according to claim 1 is characterized in that, one of them described end cap is provided with an oil storage tank and a lubrication channel at least.

8. Linear Moving Module according to claim 1 is characterized in that, described slide also comprises at least two ball holders, described ball holder be respectively with described in the corresponding setting of back flash.

9. Linear Moving Module according to claim 1 is characterized in that described slide also comprises at least two dust guard, and described dust guard links the bottom side of described slide.

10. Linear Moving Module according to claim 1 is characterized in that described slide also comprises at least two stiffeners, is separately positioned on described end cap.

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