CN105587768A

CN105587768A - Linear guiderail pair with high stability

Info

Publication number: CN105587768A
Application number: CN201610071180.1A
Authority: CN
Inventors: 向宝明; 孙亮
Original assignee: Jiaxing Hailingda Precision Transmission Technology Co Ltd
Current assignee: Jiaxing Hailingda Precision Transmission Technology Co Ltd
Priority date: 2016-02-01
Filing date: 2016-02-01
Publication date: 2016-05-18

Abstract

The invention discloses a linear guide rail with high stability. The linear guide rail comprises a slide block and a guide rail, wherein the slide block is arranged above the guiderail; the slide block comprises a body; the front end and the rear end of the body are provided with an inner reversing machine and an outer reversing machine; the inner reversing machine is arranged between the body and the outer reversing machine; the inner reversing machine and the outer reversing machine form a turnover channel; the section of the inner reversing machine and the section of the outer reversing machine are two concentric circular arcs; a first groove is arranged on the lower part of the slide block; the two ends of the first groove are symmetrically provided with slide paths; rolling balls are arranged in the slide paths; the two ends, close to the first groove, of the slide block are provided with reversing channels corresponding to the slide paths; one side, close to the inner side edges of the slide paths, of the inner reversing machine is provided with a transition slope; and the two ends of the transition slope are separately connected to the inner side edge of the inner reversing machine and the inner side edges of the slide paths. According to the linear guide rail, the stability during high-speed operation of the guiderail pair is greatly improved, a circulation dead point which is extremely liable to generate when the rolling balls operate to the slide path in a circulator and the slide block is overcome, the noises are reduced, and the service life is prolonged.

Description

A kind of line slideway auxiliary of high stationarity

Technical field

The invention belongs to the rolling member field in optoelectronic integration, especially refer to a kind of line slideway auxiliary of high stationarity.

Background technology

Linear rolling guide is to replace sliding friction with rolling friction, does by rolling element (ball or roller) the rectilinear motion pair that both Infinite Cyclic of fixed track supported and transmitted carrier and gives certain guiding accuracy. At present, the traditional line guide rail pair of China is all according to national standard manufacture, more smooth and easy vibration or the impact that is more conducive to reduce generation in reciprocating motion of the rolling of the ball in rolling guide-rail pairs, on slide block, be provided with ball slideway with guide rail contact position, and slide block inside is provided with back passage, ball runs to rotating channel in reverser again to back passage from ball slideway, realizes a shuttling movement going round and beginning again with respect to guide rail. But traditional standard linear rolling guide, ball is when running to rotating channel from ball slideway, because there is " step " of one 90 degree between rotating channel and ball slideway, it is the You Ge right angle, intersection of rotating channel and ball slideway, ball runs to this position between two slideways may bump against this right angle, as shown in Figure 2, " step " be i.e. A position in figure, when ball runs to this position, frictional resistance is multiplied, easy stuck generation circulation dead point, also can produce impact noise, and then affects operation and the service life of whole guideway.

Summary of the invention

For solving the problems of the technologies described above, the invention provides a kind of line slideway auxiliary of high stationarity, can improve the stationarity that ball rolls, reduce the noise impact that guideway operation produces, also extend the service life of guideway.

Technical scheme of the present invention: a kind of line slideway auxiliary of high stationarity, comprise slide block and guide rail, described slide block is located at guide rail top, it is characterized in that, described slide block comprises body, and described body rear and front end is provided with interior reverser, outer reverser, and described interior reverser is located between body and outer reverser, interior reverser and outer reverser form rotating channel, and described interior reverser and outer reverser cross section are two isocentric circular arc; Described slide block bottom has the first groove, described the first groove two ends are arranged with slideway, in described slideway, establish ball, on described slide block, be provided with the back passage corresponding with slideway near the first groove two ends, described interior reverser arranges a transitional slope near slideway inside edge one side, and described transitional slope two ends join with interior reverser, slideway inside edge respectively. Transitional slope is arranged so that the step right-angled bend transition of 90 ° becomes chamfered transition, has avoided ball to run to impact shock that this position produces or stuck, and transitional slope is positioned at rotating channel.

Further, transitional slope and interior reverser outer surface are tangent.

Further, described transitional slope is that rounding is connected with ball slideway inside edge. Rounding is less in the frictional force that produces of turning than direct slope and slip inside edge knuckle, and it is less that ball runs to the turn resistance that is subject to of rounding. The rib that namely transitional slope and slideway join is set to rounding instead of knuckle, and making ball and this joint is that face contacts, and the frictional force being subject to is less.

Further, described slide rail is " work " type, and slide rail top bilateral symmetry is provided with three groove corresponding with slideway.

Further, the outer reverser that is positioned at body portion is provided with an oil nozzle.

Further, on described guide rail, have some heavy stands hole that spacing equates. Heavy stand hole is used for installing trip bolt or alignment pin etc., guide rail is fixed in the plant equipment of its application, can be stressed even when spacing equates to make whole guide rails assembling.

Further, described heavy stand hole is provided with bolted cover. Play dustproof effect, with prevent iron filings, dust and other impurities in the time that slide block moves, enter the circulatory system in and affect serviceability and the service life of linear rolling guide.

Beneficial effect of the present invention: by the setting of transitional slope on slide block, eliminate the right angle " step " existing between the slideway in circulator and slide block, stationarity while greatly having improved guideway high-speed cruising, overcome the circulation dead point very easily producing when ball runs to this place, also reduced noise, increased the service life.

Brief description of the drawings

Fig. 1 is the front schematic view of linear rolling guide;

Fig. 2 is the C-C partial sectional view of prior art;

Fig. 3 is the C-C partial sectional view of this programme;

Fig. 4 is the B part partial enlarged drawing in Fig. 3;

Fig. 5 is linear rolling guide schematic perspective view.

Wherein, 1 slide block body, 2 guide rails, 21 the 3rd grooves, 22 heavy stand holes, 23 seal covers, 24, the limit that contacts with ball of guide rail, 3 first grooves, 4 slideways, 41 slideway inside edges, 42 slideway outer edges, 5 back passages, 6 rotating channels, 7 second grooves, 8 balls, 9 interior reversers, the outer surface of 91 interior reversers, 10 outer reversers, 11 transitional slopes, 12 oil nozzles.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described further, makes technical scheme clearer.

As shown in the figure, linear rolling guide comprises slide block and is located at the guide rail 2 of slide block below, slide block below is provided with the first groove 3, the first groove 3 upper and lower part correspondences are provided with slideway 4, in slideway, establish ball 8, the inside edge 41 of slideway 4 and the first groove 3 join, the rear and front end of slide block body 1 is provided with interior reverser 9, outer reverser 10, interior reverser is located between slide block body and outer reverser, interior reverser and outer reverser form rotating channel 6, and the cross section of interior reverser and outer reverser is two isocentric circular arc; The slide block body at the first groove two ends is provided with the back passage 5 corresponding with slideway, described interior reverser arranges a transitional slope 11 (Fig. 4 middle section shape) near slideway inside edge one side, transitional slope two ends respectively with the outer surface 91(of interior reverser namely rotating channel near a side of interior reverser), slideway inside edge 41(is namely near the slideway limit of back passage one side) join. Transitional slope is equivalent to an inclined-plane, for ball, has made ramp turning into from the right-angled bend of step, and the impulsive force of generation greatly reduces.

From above-mentioned different, the transitional slope of this programme is that rounding is connected with ball slideway inside edge, and in Fig. 3, a cambered surface transition is processed at rib in A point place.

From above-mentioned different, the slide rail of this programme is " work " type, and slide rail top bilateral symmetry is provided with three groove 21 corresponding with slideway. Ball relative rolling between slideway and the 3rd groove, realizes the straight reciprocating motion between slide block and guide rail.

From above-mentioned different, the slide block of this programme is positioned at guide rail upper surface top and is provided with the second groove 7. Avoid the surface of slide block to contact with guide rail upper surface, reduce between slide block and guide rail and only roll by the ball in slideway the frictional resistance that moves reciprocatingly and produce.

From above-mentioned different, the outer reverser of the body portion of this programme is provided with an oil nozzle 12.

From above-mentioned different, on the guide rail of this programme, have some heavy stands hole 22 that spacing equates, on heavy stand hole, seal cover 23 can be set.

From above-mentioned different, slideway is four row described in this programme, is relatively symmetrical arranged with the first groove, and four row slideways adopt 45° angle settings. Make the load that bears in all angles direction of whole slide block consistent.

Be more than the preferred embodiment of the present invention, do not limit protection scope of the present invention, mentality of designing according to the present invention is made for those skilled in the art distortion and improvement, within all should being considered as protection scope of the present invention.

Claims

1. the line slideway auxiliary of a high stationarity, comprise slide block and guide rail, described slide block is located at guide rail top, it is characterized in that, described slide block comprises body, and described body rear and front end is provided with interior reverser, outer reverser, and described interior reverser is located between body and outer reverser, interior reverser and outer reverser form rotating channel, and described interior reverser and outer reverser cross section are two isocentric circular arc; Described slide block bottom has the first groove, described the first groove two ends are arranged with slideway, in described slideway, establish ball, on described slide block, be provided with the back passage corresponding with slideway near the first groove two ends, described interior reverser arranges a transitional slope near slideway inside edge one side, and described transitional slope two ends join with interior reverser, slideway inside edge respectively.

2. the line slideway auxiliary of high stationarity according to claim 1, is characterized in that, described transitional slope and interior reverser outer surface are tangent.

3. the line slideway auxiliary of high stationarity according to claim 2, is characterized in that, described transitional slope is that rounding is connected with ball slideway inside edge.

4. the line slideway auxiliary of high stationarity according to claim 1, is characterized in that, described slide rail is " work " type, and slide rail top bilateral symmetry is provided with three groove corresponding with slideway.

5. the line slideway auxiliary of high stationarity according to claim 1, is characterized in that, the outer reverser that is positioned at body portion is provided with an oil nozzle.

6. the line slideway auxiliary of high stationarity according to claim 1, is characterized in that, has some heavy stands hole that spacing equates on described guide rail.

7. the line slideway auxiliary of high stationarity according to claim 1, is characterized in that, described heavy stand hole is provided with bolted cover.