Linear slide rail capable of detecting backflow abnormal situation
A technology of linear slide rails and recirculation grooves, applied in the direction of linear motion bearings, bearings, shafts and bearings, etc., can solve the problem of difficult and accurate sensing of end caps
Active Publication Date: 2020-06-16
HIWIN TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
For example, U.S. Patent No. 7,178,981 uses sensors to sense the force change between the end cover and the slider, but because sensors are required at both ends, and the end cover itself has a certain rigidity, it is not practical. Easy and accurate sensing of problems with end caps
Method used
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[0029] The applicant first explains here that throughout the specification, including the embodiments described below and the claims, terms related to directions are based on the directions in the drawings. Secondly, in the embodiments to be described below and in the drawings, the same component numbers represent the same or similar components or their structural features.
[0030] see figure 1 , figure 2 and Figure 4 , The linear slide rail 10 of the first embodiment of the present invention includes a track 20 , a slider 30 , a first end cover 40 , a second end cover 50 , a plurality of balls 60 , and two force sensors 70 .
[0031] The two opposite sides of the rail 20 respectively have two vertically opposite outer rolling grooves 22 .
[0032] The slider 30 has a first end surface 31, a second end surface 32 opposite to the first end surface 31, and a chute 33 passing through the first end surface 31 and the second end surface 32. The slider 30 is provided on the ra...
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The invention relates to a linear slide rail which comprises a track and a slide block, wherein the slide block is located on the track and forms a load channel with the track; the slide block has twonon-load channels; in addition, a first end cap and a second end cover are disposed on two opposite end faces of the slide block respectively; the first end cover has two first backflow groove; the second end cover has a backflow component and a seal plate; the backflow component has two second backflow grooves; a circulating channel used for running of a ball is jointly formed by the load channel, the non-load channels, the first backflow grooves and the second backflow grooves; and a strength sensor is disposed between the backflow component and the seal plate. In this way, the linear sliderail provided by the invention can judge whether an abnormal situation exists in running of the ball according to a rigid difference between the first end cap and the second end cap and through combination of the strength sensor.
Description
technical field [0001] The invention relates to a linear slide rail, in particular to a linear slide rail capable of detecting abnormal backflow conditions. Background technique [0002] The traditional linear slideway includes a track and a slider sliding on the track, wherein an end cover is provided at the front and rear ends of the slider, so that the track, the slider and the two end covers jointly form a A pair of circulation channels for multiple balls to run. [0003] In order to ensure the smooth running of the balls, sensors have been used in the prior art to detect whether there is an abnormal backflow condition. For example, U.S. Patent No. 7,178,981 uses sensors to sense the force change between the end cover and the slider, but because sensors are required at both ends, and the end cover itself has a certain rigidity, it is not practical. Easy and accurate sensing of problems with end caps. In addition, the Japanese patent JPA_2012193803 places the sensor ou...
Claims
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IPC IPC(8): F16C29/04
CPCF16C29/04
Inventor 林嘉宇林烨伟张隆裕黄品儒杨纯明刘新平
Owner HIWIN TECH