CN114183467A - Linear sliding rail and assembling structure of retaining assembly thereof - Google Patents
Linear sliding rail and assembling structure of retaining assembly thereof Download PDFInfo
- Publication number
- CN114183467A CN114183467A CN202010967740.8A CN202010967740A CN114183467A CN 114183467 A CN114183467 A CN 114183467A CN 202010967740 A CN202010967740 A CN 202010967740A CN 114183467 A CN114183467 A CN 114183467A
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- Prior art keywords
- retaining
- straight channel
- holding
- return
- return pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000001595 flow curve Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 1
Images
Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0611—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the return passages, i.e. the passages where the rolling elements do not carry load
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/08—Arrangements for covering or protecting the ways
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
本发明为一种线性滑轨及其保持组件的组接结构，包括滑块、一对端盖及数个保持组件组。滑块具有滑槽、沟槽及贯通孔。端盖相对结合在滑块的二侧边。端盖成型有数个直通道凸片及数个回流槽。保持组件组包含相对接并穿置在各贯通孔中的数个保持筒件，保持筒件包含管筒、回流管及直通道末段，回流管及直通道末段凸露在管筒的一末端，管筒的末端抵接在各直通道凸片的一端面从而封合直通道末段，且回流管罩合回流槽而形成连通直通道末段的回流弯道；借此避免滚珠在转弯时的冲击力造成端盖及保持组件组分离，维持滚珠在滚动时的顺畅性。
The present invention relates to an assembly structure of a linear slide rail and its holding components, comprising a sliding block, a pair of end caps and several holding component groups. The slider has a chute, a groove and a through hole. The end caps are relatively combined with two sides of the slider. The end cap is formed with several straight channel lugs and several return grooves. The holding assembly group includes a plurality of holding cylinders which are connected to each other and pass through each through hole. The holding cylinders include a tube, a return pipe and an end section of the straight channel. The return tube and the end section of the straight channel are exposed at one end of the tube. The end of the tube abuts on one end face of each straight channel lug to seal the end of the straight channel, and the return pipe covers the return groove to form a return bend connecting the end of the straight channel; thereby avoiding the ball when turning. The impact force causes the end cap and the retaining assembly to separate, maintaining the smoothness of the ball rolling.
Description
Technical Field
The present invention relates to a linear slide rail, and more particularly, to a linear slide rail and an assembling structure of a holding assembly thereof.
Background
The linear sliding rail device mainly installs a sliding block structure on a rail so as to perform linear repeated motion. The slider structure includes a U-shaped slider, two end caps disposed opposite to each other on opposite sides of the slider, a plurality of balls disposed in the slider, and a retaining member for retaining the balls on the slider. Therefore, the sliding block can reduce the friction force between the sliding block and the track when the sliding block moves relatively through the balls, so that the sliding block can move more smoothly.
Furthermore, the slider structure utilizes the retaining component to provide a rolling path for the ball. The existing holding assembly utilizes a backflow pipe butt joint assembly to be arranged as a linear channel of a ball, and the backflow pipe is connected to one side surface of an end cover. However, during the rolling cycle, the balls in the slider generate large impact force and vibration at the position of the end cap (i.e. the assembly position of the return pipe and the end cap). Under the continuous impact force and vibration, a gap or an uneven phenomenon is formed between the end cover and the return pipe. This causes frictional resistance to the balls in the return pipe during rolling circulation, which in turn affects the smoothness of the balls during rolling.
In view of the above, the present inventors have made extensive studies and studies to solve the above problems in combination with the application of the above prior art, and as a result, the present inventors have improved the present invention.
Disclosure of Invention
An object of the present invention is to provide a linear guide and an assembling structure of a holding member thereof, which can prevent an end cap and the holding member from being separated from each other due to an impact force generated when a ball turns, and maintain smoothness of the ball during rolling.
In order to achieve the above object, the present invention is a linear guideway including a slider, a pair of end caps and a plurality of retaining component sets. The sliding block is provided with a sliding groove, a plurality of grooves arranged on the opposite sides of the sliding groove and a plurality of through holes. The pair of end caps are coupled to opposite sides of the slider, and each end cap is formed with a plurality of straight channel tabs and a plurality of return grooves on a side facing the slider. Each holding component group comprises a plurality of holding cylinder parts which are butted and arranged in each through hole in a penetrating way, each holding cylinder part comprises a cylinder, a return pipe and a straight channel tail section extending from the return pipe, the return pipe and the straight channel tail section are protruded at the tail end of the cylinder, the tail end of the cylinder is abutted against the end surface of each straight channel lug to seal the straight channel tail section, and the return pipe covers the return groove to form a return bend communicated with the straight channel tail section.
In order to achieve the above object, the present invention is an assembly structure of a retaining assembly of a linear guideway for retaining a plurality of balls disposed in a guideway, comprising a pair of end caps and a plurality of retaining assembly sets. The pair of end caps are coupled to opposite sides of the slider, and each end cap is formed with a plurality of straight channel tabs and a plurality of return grooves on a side facing the slider. The holding assembly group comprises a plurality of holding cylinder parts which are butted and arranged in the sliding block in a penetrating way, each holding cylinder part comprises a cylinder, a return pipe which is convexly exposed out of the cylinder and a straight channel tail section which extends from the return pipe, one end of each holding cylinder part abuts against the end surface of each straight channel lug so as to seal the straight channel tail section, and the return pipe covers the return groove to form a return bend which is communicated with the straight channel tail section.
Compared with the prior art, the end cover of the linear slide rail is provided with the straight channel lug and the backflow groove in a forming mode; on the other hand, the holding cylinder part of the holding component group comprises a cylinder barrel, a return pipe and a straight channel tail section, and the return pipe and the straight channel tail section are protruded at the tail end of the cylinder barrel; when the holding component is assembled on the end cover, the tail end of the pipe barrel is abutted against the end face of the straight channel lug to seal the tail section of the straight channel, and in addition, the return pipe covers the return groove to form a return bend communicated with the tail section of the straight channel. Therefore, the joint of the holding barrel and the end cover can be staggered with the position of the backflow curve, so that the joint of the holding barrel and the end cover can be prevented from generating a gap under the influence of impact force and vibration when the balls are steered, the smoothness of the balls during rolling is further maintained, and the practicability of the invention is improved.
Drawings
FIG. 1 is a schematic perspective view of a linear slide rail according to the present invention;
FIG. 2 is an exploded perspective view of the end cap and slider of the present invention;
FIG. 3 is an exploded perspective view of the retaining assembly set and slider of the present invention;
FIG. 4 is an exploded perspective view of the end cap and retaining assembly set of the present invention;
fig. 5 and 6 are combined cross-sectional views of the linear guideway of the present invention;
FIG. 7 is a schematic perspective view of the linear guideway of the present invention;
fig. 8 is a combined cross-sectional view of the linear guideway of the present invention during use.
Symbolic illustration in the drawings:
1, linear slide rail;
10, a sliding block;
11, a chute;
111: top;
112, bottom;
12, a groove;
13, a through hole;
20, end cover;
a straight channel tab;
22, a reflux tank;
23, an upper holding sheet;
232, a positioning part;
24, a lower holding column;
241 is a positioning part;
30, holding the component group;
31, holding the cylinder;
310, a return bend;
311, a pipe barrel;
312, a return pipe;
313, straight channel end section;
314 a positioning part;
32, a lateral holding sheet;
321 a positioning part;
40, rolling balls;
50, track.
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the drawings, which are provided for reference and illustration purposes only and are not intended to limit the present invention.
Fig. 1 is a schematic perspective view of a linear slide rail according to the present invention. The present invention is a linear guideway 1, which comprises a sliding block 10, a pair of end caps 20 and a plurality of retaining component sets 30. The pair of end caps 20 are coupled to opposite sides of the slider 10. The pair of holding component sets 30 penetrate through the slider 10, and the holding component sets 30 are combined with the slider 10 to provide a path for circulating and rolling balls. The structure of the linear guideway 1 will be described in more detail.
Fig. 2 to 4 are schematic exploded perspective views of an end cap and a slider, a retaining component set and a slider, and an end cap and a retaining component set according to the present invention. As shown in the drawings, the cross section of the slider 10 is substantially U-shaped, and the slider 10 has a sliding slot 11, a plurality of grooves 12 and a plurality of through holes 13 disposed on opposite sides of the sliding slot 11.
The pair of end caps 20 are coupled to opposite sides of the slider 10. Each end cap 20 is formed with a plurality of straight channel tabs 21 and a plurality of return grooves 22 on a side facing the slider 10. Specifically, each of the return grooves 22 abuts against each of the straight channel tabs 21 and is located near an inner side of the slider 10.
Furthermore, each of the holding assembly sets 30 includes a plurality of holding cylinders 31 which are abutted and inserted into the through holes 13. Each of the holding cylinders 31 comprises a tube 311, a return pipe 312 and a straight passage end section 313 extending from the return pipe 312. Also, the return pipe 312 and the straight passage end section 313 protrude at one end of the tube 311. The end of the tube 311 abuts against an end face of each of the straight channel tabs 21 to seal the straight channel end section 313. In addition, the return pipe 312 covers the return tank 22 to form a return bend 310 communicating with the straight channel end section 313.
In more detail, please refer to fig. 2. Each of the end caps 20 further has an upper retaining tab 23. The upper holding piece 23 is connected between the two opposing return grooves 22. In the present embodiment, the ends of the upper holding piece 23 are respectively provided with a positioning portion 232. The upper holding pieces 23 of the pair of end caps 20 are inserted through a top portion 111 of the chute 11 and abut against each other by the positioning portions 232.
For example, the end positioning portion 232 of the upper retaining piece 23 of one of the end caps 20 can be configured as a pin and a socket. The upper holding piece 23 of the opposite end cap 20 can be provided with an insertion hole and a latch at the end positioning portion 232. Accordingly, the positioning effect can be achieved when the two upper holding pieces 23 of the pair of end caps 20 abut against each other.
In one embodiment of the present invention, each of the end caps 20 further has a plurality of lower retention posts 24 spaced apart from each other. The ends of the lower holding posts 24 are respectively provided with a positioning portion 241. The lower retaining posts 24 of the pair of end caps 20 are inserted into a bottom 112 of the chute 11 and abut against each other by the positioning portions 241 of the lower retaining posts 24.
For example, the lower retaining post 24 of one of the end caps 20 may provide the end positioning portion 241 as a latch. The lower holding post 24 of the opposite end cap 20 can be an insertion hole for the positioning portion 241 of the end. Accordingly, the positioning effect can be achieved when the two lower holding posts 24 of the pair of end caps 20 abut against each other.
Referring to fig. 3 and 4, in the present embodiment, each of the holding component sets 30 includes a plurality of holding cylinders 31 disposed at intervals and connected at one side. In addition, each end cap 20 is formed with a plurality of straight channel protruding pieces 21 which are arranged at intervals and located at one side of the sliding slot 11.
Preferably, each retention assembly set 30 further includes a plurality of lateral retention tabs 32. Each of the lateral retaining tabs 32 is located between the associated plurality of retaining cartridges 31. The ends of the lateral holding pieces 32 are respectively provided with a positioning portion 321, and the holding cylinders 31 are abutted with each other by the positioning portions 321 of the lateral holding pieces 32.
For example, one of the lateral holding pieces 32 of the holding barrel 31 may set the positioning portion 321 of the tip as a socket. The positioning portion 321 of the end can be a latch on the lateral holding piece 32 of the other holding cylinder 31. Accordingly, the positioning effect can be achieved when the two lateral holding pieces 32 of the holding cylinder 31 are abutted against each other.
It should be noted that, in an embodiment of the present invention, the ends of the holding cylinders 31 are respectively provided with a positioning portion 314. The holding cylinder members 31 abutting each other are abutted against each other by the positioning portions 314.
For example, the positioning portion 314 at the end of one of the holding cylinders 31 is configured as a tab. The positioning portion 314 at the end of the other holding cylinder 31 may be a slot. Accordingly, the holding cylinders 31 can be positioned when they are abutted against each other.
Referring to fig. 5 and fig. 6, the present invention is a combined cross-sectional view of a linear guideway. Referring to fig. 5, after the end cap 20 and the retaining component sets 30 are assembled to the slider 10, the upper retaining piece 23 is inserted into the top 111 of the sliding slot 11, and the upper retaining piece 23 abuts against an outer side of a portion of the groove 12 (upper groove) to retain the balls (see fig. 8) from moving out of the grooves 12. In addition, the lower retaining post 24 is disposed through a bottom 112 of the chute 11. The lower retaining posts 24 abut against an outer side of the partial grooves 12 (lower grooves) to retain the balls from moving out of the grooves 12. Further, a holding cylindrical member 31 is inserted into the through hole 13 to be abutted against each other. In addition, the lateral retaining piece 32 abuts against an inner side of the grooves to retain the other side of the ball.
As shown in fig. 6, it is noted that, when the holder assembly 30 of the present invention is assembled in the aforementioned manner, the distal end of the tube 311 abuts against one end face of each of the straight passage tabs 21 to seal the straight passage end section 313. In addition, the return pipe 312 covers the return tank 22 to form a return bend 310 communicating with the straight passage end section 313.
It should be noted that the joint of the holding cylinder 31 and the end cap 20 is shifted from the position of the return curved path 310 by the straight path protrusion piece 21, thereby preventing the joint of the holding cylinder 31 and the end cap 20 from generating a gap or being separated due to the impact force and vibration when the balls turn, and maintaining the smoothness of the balls during rolling.
Please refer to fig. 7 and 8, which are a perspective view and a combined cross-sectional view of the linear guideway of the present invention. As shown in the drawings, the linear guideway 1 of the present invention further includes a rail 50. The rail 50 is inserted into the sliding groove 11 of the slider 10 to perform a linear reciprocating motion.
Referring to fig. 8, after the slider 10, the pair of end caps 20 and the plurality of retaining assembly sets 30 are assembled in the above manner, a plurality of balls 40 are disposed in the grooves 12. The balls 40 are disposed to reduce the friction between the slider 10 and the track 50, so as to facilitate the slider 10 to move repeatedly on the track 50.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents using the spirit of the present invention should fall within the scope of the present invention.
Claims (12)
1. A linear slide, comprising:
a slide block, which is provided with a sliding chute, a plurality of grooves arranged at the opposite side of the sliding chute and a plurality of through holes;
a pair of end covers combined on two opposite sides of the sliding block, wherein a plurality of straight channel lugs and a plurality of backflow grooves are formed on one side surface of each end cover facing the sliding block; and
the holding component groups are arranged in the through holes in a butt joint mode, each holding component group comprises a plurality of holding barrel parts which are oppositely connected and penetrate through the through holes, each holding barrel part comprises a pipe barrel, a return pipe and a straight channel tail section extending from the return pipe, the return pipe and the straight channel tail section are exposed out of one end of the pipe barrel in a protruding mode, the tail end of the pipe barrel abuts against one end face of each straight channel lug to seal the straight channel tail section, and the return pipe covers the return groove to form a return bend communicated with the straight channel tail section.
2. The linear slide of claim 1 wherein each of said return channels abuts each of said straight channel tabs and is located proximate an inner side of said slider.
3. The linear slide of claim 1, wherein each of the end caps further has an upper retaining plate connected between the two opposing return grooves and the upper retaining plate abuts against an outer side of a portion of the grooves to retain the plurality of balls from moving out of the grooves.
4. The linear guide of claim 3, wherein the upper retaining piece is provided at its distal end with a positioning portion, and the upper retaining pieces of the pair of end caps are inserted through a top portion of the slide groove and abut against each other through the positioning portion.
5. The linear slide of claim 1 wherein each of the end caps further has a plurality of spaced lower retaining posts that abut against an outer side of a portion of the channels to retain the plurality of balls from moving out of the channels.
6. The linear guideway of claim 5, wherein the ends of the lower retaining posts are respectively provided with a positioning portion, and the lower retaining posts of the pair of end caps are inserted into a bottom of the guideway and abut against each other by the positioning portions of the lower retaining posts.
7. The linear slide of claim 1 wherein each of the retaining assembly sets comprises a plurality of retaining barrel members spaced apart and connected at one side, each of the end caps being formed with a plurality of straight channel tabs spaced apart and located at one side of the chute.
8. The linear slide of claim 7 wherein each of the retaining assembly sets further comprises a plurality of lateral retaining tabs, each of the lateral retaining tabs being located between the associated plurality of retaining barrel members.
9. The linear slide of claim 8 wherein the lateral retention tabs abut an inner side of the grooves.
10. The linear guide rail according to claim 9, wherein the ends of the lateral holding pieces are respectively provided with a positioning portion, and the holding cylinder members are abutted against each other by the positioning portions of the lateral holding pieces.
11. The linear guide rail according to claim 1, wherein the ends of the holding cylinder members are respectively provided with a positioning portion, and the holding assembly groups are abutted with each other by the positioning portions of the holding cylinder members.
12. An assembly structure of a retaining member of a linear slide for retaining a plurality of balls disposed in a slide, comprising:
a pair of end covers combined on two opposite sides of the sliding block, wherein a plurality of straight channel lugs and a plurality of backflow grooves are formed on one side surface of each end cover facing the sliding block; and
and the retaining component groups comprise a plurality of retaining cylinder parts which are oppositely connected and arranged in the sliding block in a penetrating way, each retaining cylinder part comprises a cylinder, a return pipe protruding out of the cylinder and a straight channel tail section extending from the return pipe, one end of each retaining cylinder part abuts against one end face of each straight channel lug so as to seal the straight channel tail section, and the return pipe covers the return groove to form a return flow curve communicated with the straight channel tail section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967740.8A CN114183467B (en) | 2020-09-15 | 2020-09-15 | Linear guide rail and its retaining assembly assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967740.8A CN114183467B (en) | 2020-09-15 | 2020-09-15 | Linear guide rail and its retaining assembly assembly structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183467A true CN114183467A (en) | 2022-03-15 |
| CN114183467B CN114183467B (en) | 2024-08-30 |
Family
ID=80539133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010967740.8A Active CN114183467B (en) | 2020-09-15 | 2020-09-15 | Linear guide rail and its retaining assembly assembly structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN114183467B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008185044A (en) * | 2007-01-26 | 2008-08-14 | Nsk Ltd | Linear guide apparatus |
| TW201226731A (en) * | 2010-12-24 | 2012-07-01 | Hiwin Tech Corp | Circulating system of a linear guideway |
| CN203453292U (en) * | 2013-08-26 | 2014-02-26 | 全球传动科技股份有限公司 | Linear Motion Module |
| TWM476199U (en) * | 2013-12-10 | 2014-04-11 | Hiwin Tech Corp | Backflow apparatus for linear sliding rail |
| TWM523020U (en) * | 2015-12-30 | 2016-06-01 | Hiwin Tech Corp | Linear sliding track |
| TWI539091B (en) * | 2015-08-03 | 2016-06-21 | 上銀科技股份有限公司 | Linear guideway that is easy to assemble a return pipe |
| JP2018071592A (en) * | 2016-10-26 | 2018-05-10 | 日本トムソン株式会社 | Linear motion guidance unit |
-
2020
- 2020-09-15 CN CN202010967740.8A patent/CN114183467B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008185044A (en) * | 2007-01-26 | 2008-08-14 | Nsk Ltd | Linear guide apparatus |
| TW201226731A (en) * | 2010-12-24 | 2012-07-01 | Hiwin Tech Corp | Circulating system of a linear guideway |
| CN203453292U (en) * | 2013-08-26 | 2014-02-26 | 全球传动科技股份有限公司 | Linear Motion Module |
| TWM476199U (en) * | 2013-12-10 | 2014-04-11 | Hiwin Tech Corp | Backflow apparatus for linear sliding rail |
| TWI539091B (en) * | 2015-08-03 | 2016-06-21 | 上銀科技股份有限公司 | Linear guideway that is easy to assemble a return pipe |
| TWM523020U (en) * | 2015-12-30 | 2016-06-01 | Hiwin Tech Corp | Linear sliding track |
| JP2018071592A (en) * | 2016-10-26 | 2018-05-10 | 日本トムソン株式会社 | Linear motion guidance unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114183467B (en) | 2024-08-30 |
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