CN217842389U

CN217842389U - Linear guide rail pair with self-positioning ball reverser

Info

Publication number: CN217842389U
Application number: CN202222331552.3U
Authority: CN
Inventors: 曾燕飞; 虞一强; 许琳; 沈城聪
Original assignee: Jiaxing Meisen Precision Technology Co ltd
Current assignee: Jiaxing Meisen Precision Technology Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-18
Anticipated expiration: 2032-08-31

Abstract

The utility model belongs to the technical field of the vice technique of linear guide and specifically relates to a linear guide is vice with self-align ball returns ware, including guide rail, slider, return ware, the both ends of slider set up respectively and return the ware, and holder, slider and guide rail form and bear the passageway, set up back the pearl passageway in the slider, are provided with the guide way returning to the ware, the guide way feeds back the pearl passageway and bears the passageway, is provided with the ball returning pearl passageway, bearing the weight of passageway and guide way, outwards extends at the guide way one end that returns the ware has the guide part, form transition channel between the guide part, guide part and holder butt joint, return to through screw fixed connection between ware and the slider. The utility model provides a linear guide is vice with from positioning ball to return to ware can utilize the removal of slider to realize returning to the self-positioning of ware when the assembly to ensure the accurate butt joint between carrier channel and the transition passageway, the ball operation is more smooth and easy, promotes assembly efficiency and assembly quality simultaneously.

Description

Linear guide rail pair with self-positioning ball reverser

Technical Field

The utility model belongs to the technical field of the vice technique of linear guide, especially, a linear guide is vice with self-align ball returns to ware.

Background

In the linear guide rail pair, a certain number of rolling bodies such as balls are arranged between a slide rail and a guide rail, the low-friction and long-service-life movement of the slide block along the guide rail is realized through the rolling of the rolling bodies, and in order to realize the movement of the slide block at any distance, a return device is generally arranged at the end part of the slide block, so that the rolling bodies can infinitely rotate between a ball return channel and a bearing area.

In general, the return device is fastened to the slide block by screws, and the inlet of the return device is connected to a carrying channel (a channel composed of the slide block, the guide rail and the holder). Due to the existence of machining errors, the accuracy of a connecting port of the inlet of the reverser and the bearing channel needs to be manually adjusted, and the inlet of the reverser is a round hole, so that the butting accuracy is poor, and the adjusting difficulty is high.

Therefore, a linear guide rail pair capable of quickly realizing accurate positioning between the reverser and the sliding block to ensure smooth operation of the rolling body is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technique not enough and provide a linear guide is vice with from positioning ball returning to ware, can be to rectifying between returning to ware and the slider at ball operation in-process from positioning, improve the butt joint precision and the assembly efficiency of slider and returning to the ware.

The utility model discloses a linear guide is vice with self-align ball returns to ware, including guide rail, slider, returning to the ware, the both ends of slider set up respectively and return to the ware, are provided with the holder in the slider, holder, slider and guide rail form and bear the passageway, set up back the pearl passageway in the slider, are provided with the guide way in returning to the ware, the guide way feeds back the pearl passageway and bears the passageway, is provided with the ball returning pearl passageway, bearing the passageway and the guide way, the length of holder is less than the length of slider, and the guide way one end of returning to the ware outwards extends has the guide part, form transition passageway between the guide part, guide part and holder butt joint, return to through screw fixed connection between ware and the slider.

According to the scheme, the retainer in the prior art is shortened, the guide part is arranged at one end of the guide groove of the return device and is in butt joint with the retainer, and therefore the guide part can be located in the end range of the sliding block in the assembling process. The sum of the length of the guide part and the length of the retainer is equal to the length of the slider. In the actual assembly process, the return devices are assembled at two ends of the sliding block through screws, balls are assembled in the return devices, the return devices are connected with the sliding block but are not fastened, then the sliding block is pushed to reciprocate on the guide rail for multiple times, in the movement process, the balls are used for accurately butting a transition channel between the guide parts and a bearing channel under the action of the guide parts, and the balls are smooth in the process of moving, so that automatic deviation correction is realized; after reciprocating many times, can fasten the screw, return to the ware at the rigidity at slider both ends, and fixed back transition passageway and the accurate butt joint of bearing the weight of the passageway, the ball operation is more smooth and easy stable, has guaranteed assembly quality.

A gap is formed between the ball in the transition channel formed between the guide parts and the transition channel, and the gap is 0.02-0.03mm. The size of the transition channel may be slightly larger than the size of the load channel, since there is substantially no gap between the balls in the load channel and the load channel. When the ball got into the transition passageway from bearing the weight of the passageway, even if return to when having the incline between ware and the slider, the ball also can get into the transition passageway from bearing the weight of the passageway, and of course, the rolling element has some unsmooth, but at the reciprocating motion in-process, it can have certain function of rectifying to the guide part for transition passageway and the accurate butt joint of bearing the weight of the passageway, in order to ensure that the ball can smoothly pass through.

The reversing device is provided with a through hole, a screw hole is arranged on the sliding block corresponding to the through hole, the screw penetrates through the through hole and then is fixedly connected with the screw hole, and the diameter of the through hole is 0.04-0.06mm larger than that of the screw. When the reverser passes through the screw connection on the slider, a gap is reserved between the through hole and the screw, the screw can be incompletely fastened, a certain resistance is reserved between the reverser and the slider, displacement can not occur between the reverser and the slider at will, but when the slider reciprocates, relative displacement can be caused between the reverser and the slider under the action of the ball on the guide part, so that accurate butt joint of the bearing channel and the transition channel is caused, the position of the reverser can be kept on the changed position after the change, and therefore assembly personnel only need to completely fasten the screw to realize assembly between the slider and the reverser, and the smooth operation of the ball is kept.

The utility model provides a linear guide is vice with from positioning ball to return to ware can utilize the removal of slider to realize returning to the self-positioning of ware when the assembly to ensure the accurate butt joint between carrier channel and the transition passageway, the ball operation is more smooth and easy, promotes assembly efficiency and assembly quality simultaneously.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the return device of the present invention in cooperation with the guide rail;

FIG. 4 is a schematic view of a reflector of the present invention, FIG. 1;

fig. 5 is a schematic view of the returner of the present invention 2.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.

Example 1:

as shown in fig. 1-5, the utility model discloses a linear guide is vice with self-align ball returns to ware, including guide rail 1, slider 2, return to ware 3, slider 2's both ends set up respectively and return to ware 3, are provided with holder 5 in slider 2, holder 5, slider 2 and guide rail 1 form and bear passageway 7, set up in slider 2 and return pearl passageway 8, are provided with guide way 10 in returning to ware 3, guide way 10 communicates and returns pearl passageway 8 and bear passageway 7, is provided with ball 4 in returning pearl passageway 8, bearing passageway 7 and the guide way 10, the length of holder 5 is less than slider 2's length, and it has guide part 6 to outwards extend to have a guide part 10 one end at the guide way that returns to ware 3, form transition passageway 9 between the guide part 6, guide part 6 docks with holder 5, return to pass through screw fixed connection between ware 3 and the slider 2.

The retainer 5 in the slider 2 is divided into a first retainer 51, a second retainer 52 and a third retainer 53, the first retainer 51 is arranged on the upper end surface of the guide rail 1, the second retainer 52 is arranged on two sides of the first retainer 51, a bearing channel 7 is formed between the first retainer 51 and the second retainer 52, the third retainer 53 is respectively arranged below the second retainer 52, and the bearing channel 7 is also formed between the second retainer 52 and the third retainer 53. Each bearing channel 7 is provided with a corresponding ball return channel 8 inside the slider 2, and the corresponding ball return channels 8 are butted with the bearing channels 7 through guide grooves 10. Corresponding guide parts 6 are arranged on the returning device corresponding to the first retainer 51, the second retainer 52 and the third retainer 53, the guide parts 6 are butted with the corresponding retainers 5, and transition channels 9 formed among the guide parts 6 are butted with the bearing channels 7.

A gap of 0.02mm exists between the ball 4 in the transition passage 9 formed between the guide portions 6 and the transition passage 9. The size of the transition channel 9 will be slightly larger than the size of the load channel 7, since there is substantially no gap between the balls 4 in the load channel 7 and the load channel 7. When the ball 4 enters the transition channel 9 from the bearing channel 7, even if the return device 3 and the slider 2 are inclined, the ball 4 can also enter the transition channel 9 from the bearing channel 7, certainly, the ball 4 has some unsmooth, but in the reciprocating process, the ball 4 has a certain deviation rectifying function on the guide part 6, so that the transition channel 9 is accurately butted with the bearing channel 7, and the ball 4 can smoothly pass through.

The reversing device 3 is provided with a through hole 11, a screw hole is formed in the position, corresponding to the through hole 11, of the sliding block 2, the screw penetrates through the through hole 11 and then is fixedly connected with the screw hole, and the diameter of the through hole 11 is 0.05mm larger than that of the screw. When the reverser 3 is connected to the sliding block 2 through the screw, a gap is formed between the through hole 11 and the screw, the screw can be incompletely fastened, a certain resistance is provided between the reverser 3 and the sliding block 2, and the displacement between the reverser 3 and the sliding block 2 can not occur at will, but when the sliding block 2 reciprocates, the ball 4 can cause the reverser 3 and the sliding block 2 to generate relative displacement under the action of the guide part 6, so as to cause the bearing channel 7 to be accurately butted with the transition channel 9, and the position of the reverser 3 can be kept at the changed position after being changed, so that an assembler only needs to completely fasten the screw to realize the assembly between the sliding block 2 and the reverser 3, and the smooth operation of the ball 4 is kept.

In a specific working principle, the retainer 5 in the prior art is shortened, and the guide part 6 is arranged at one end of the guide groove 10 of the return device 3, and the guide part 6 is butted with the retainer 5, so that the guide part 6 is positioned in the end range of the slide block 2 in the assembling process. The sum of the length of the guide 6 and the length of the holder 5 should be equal to the length of the slider 2. In the actual assembly process, the reverser 3 is assembled at two ends of the sliding block 2 through screws, the ball 4 is assembled in the reverser, the reverser 3 is connected with the sliding block 2 but is not fastened, then the sliding block 2 is pushed to reciprocate on the guide rail 1 for multiple times, in the movement process, the ball 4 is used for accurately butting the transition channel 9 between the guide parts 6 and the bearing channel 7 under the action of the guide parts 6, and the ball 4 is smooth in the process, so that automatic deviation rectification is realized; after reciprocating many times, can fasten the screw, return to the ware 3 fixed in the position at 2 both ends of slider, and fixed back transition passage 9 and the accurate butt joint of bearing passage 7, ball 4 moves more smoothly stably, has guaranteed assembly quality.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; they may be directly connected or indirectly connected through intervening media, or may be in the interactive relationship of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a linear guide is vice with self-align ball returns to ware, includes guide rail, slider, returns to the ware, and the both ends of slider set up respectively and return to the ware, are provided with the holder in the slider, holder, slider and guide rail form and bear the weight of the passageway, set up in the slider and return pearl passageway, characterized by: the ball returning device is characterized in that a guide groove is formed in the ball returning device, the guide groove is communicated with the ball returning channel and the bearing channel, balls are arranged in the ball returning channel, the bearing channel and the guide groove, the length of the retainer is smaller than that of the sliding block, a guide part extends outwards from one end of the guide groove of the ball returning device, a transition channel is formed between the guide parts, the guide part is in butt joint with the retainer, and the ball returning device is fixedly connected with the sliding block through screws.

2. The linear guide pair with self-positioning ball return devices of claim 1, wherein: a gap is formed between the ball in the transition channel formed between the guide parts and the transition channel, and the gap is 0.02-0.03mm.

3. A linear guide pair with a self-positioning ball return as claimed in claim 1 or 2, wherein: the reversing device is provided with a through hole, a screw hole is arranged on the sliding block corresponding to the through hole, the screw penetrates through the through hole and is fixedly connected with the screw hole, and the diameter of the through hole is 0.04-0.06mm larger than that of the screw.