CN221033625U - Fastening rotary linear guide rail - Google Patents
Fastening rotary linear guide rail Download PDFInfo
- Publication number
- CN221033625U CN221033625U CN202322286804.XU CN202322286804U CN221033625U CN 221033625 U CN221033625 U CN 221033625U CN 202322286804 U CN202322286804 U CN 202322286804U CN 221033625 U CN221033625 U CN 221033625U
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- Prior art keywords
- guide rail
- ball
- bead
- sliding block
- rotary
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- 239000011324 bead Substances 0.000 claims abstract description 65
- 230000000903 blocking effect Effects 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 7
- 230000009191 jumping Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
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Abstract
The utility model discloses a buckling rotary type linear guide rail, wherein a rotator is arranged on the upper side of the guide rail and is in sliding connection with the guide rail, the rotator is fixed on two side walls of a linear motion path direction of a sliding block, a rotary cavity is formed in the rotator, a bead blocking device is arranged in a space between the rotator and the guide rail and is respectively matched with the guide rail and the sliding block, and the contact area between the surface of a ball and the surface of the guide rail is limited so as to prevent the ball from being blocked on the guide rail. The ball blocking device is arranged between the ball and the guide rail, reduces the contact area between the surface of the ball and the surface of the guide rail, reduces the shearing force of the surface of the guide rail on the surface of the ball when the ball continuously rolls, ensures that the ball can keep continuous and smooth circular motion in the motion process of the sliding block, realizes the high-precision motion process, and meets the guiding requirements of automation and high precision.
Description
Technical Field
The utility model belongs to the technical field of linear moving guide rails, and particularly relates to a buckling rotary type linear guide rail.
Background
The linear guide rail is also called a linear rail, a sliding rail, a linear guide rail and a linear sliding rail, is used for high-precision or high-speed linear reciprocating motion occasions, can bear a certain torque, can realize high-precision linear motion under the condition of high load, and can be divided into: the roller linear guide, the cylindrical linear guide and the ball linear guide are used for supporting and guiding the moving part, and do reciprocating linear motion according to a given direction, and the linear motion guide can be divided into sliding friction guide, rolling friction guide, elastic friction guide, fluid friction guide and the like according to the property of the massage brush.
At present, the buckling rotary type linear guide rail generally consists of a guide rail, a sliding block, a ball, a rotator and the like. The working principle is that the rolling balls roll infinitely in the track formed by the guide rail and the sliding blocks, so that the linear motion of the sliding blocks on the guide rail is realized, the sliding blocks on the buckling rotary type linear guide rail are generally of an integral structure, the rolling balls are in direct contact with the rotary ball channel in the rotary device, and when the rolling balls roll in the rotary ball channel of the rotary device, dislocation or bouncing is easy to occur when the rolling balls slide and rub due to overlarge contact area between the rolling ball surface and the wall surface of the rotary ball channel and the wall surface of the sliding rail, so that the running of the guide rail pair is not smooth, even the noise is relatively large, and the high-precision requirement is difficult to meet.
Therefore, the guide rail pair is difficult to meet the automatic and high-precision guiding requirements in the moving process due to the ball jamming.
Disclosure of utility model
In order to solve the problem that the guide rail pair is difficult to meet the automatic and high-precision guide requirement in the moving process due to ball clamping in the linear moving process, the utility model provides a buckling rotary type linear guide rail.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
A buckling rotary linear guide rail, comprising:
The gyrator is arranged on the upper side of the guide rail, is connected with the guide rail in a sliding way, is fixed on two side walls of the linear motion path direction of the sliding block, and is internally provided with a gyration cavity used for providing a gyration space for the ball.
The ball blocking device is arranged in a space between the rotator and the guide rail, is respectively matched with the guide rail and the sliding block, and limits the contact area between the surface of the ball and the surface of the guide rail so as to prevent the ball from being blocked on the guide rail.
Compared with the prior art, the utility model has the following advantages: the balls are guided between the two sides of the guide rail and the slide block through the ball blocking device, and the balls are limited between the slide block and the guide rail track to prevent the balls from falling off. When the ball continuously turns in the turning cavity in the turning device to realize the circulating motion, the ball blocking device is arranged between the ball and the guide rail track, the contact area between the surface of the ball and the surface of the guide rail is reduced, the shearing force of the surface of the guide rail on the surface of the ball when the ball continuously rolls is reduced, the stability of the linear motion of the guide rail is improved, the ball can keep continuous and smooth circulating motion in the process of moving along with the sliding block, the process of high-precision motion is realized, and the automatic and high-precision guiding requirements are met.
Further preferably, the bead stopper includes:
The first bead blocking device is connected between gyrators at the front end and the rear end of the sliding block in the linear motion direction, the plate length direction is consistent with the rail length direction of the sliding block in the guide rail, and the ball rolling on the linear path direction is smooth.
The second bead blocking device is connected with one end of the first bead blocking device, the long direction of the plate is consistent with the rotation movement direction of the ball in the rotator, and the second bead blocking device is used for enabling the ball in the rotation path direction to smoothly roll.
The check device is arranged at the other end of the second bead retainer, the other end of the check device is bent towards the plate center of the first bead retainer, and the bending direction is horizontal to the plate length direction of the first bead retainer and the movement direction of the sliding block in the guide rail, so that the bead retainer is limited at the space position of the rotator.
By adopting the technical scheme, the rolling of the ball on the linear path and the roundabout rotary path in the rotary cavity is still stable when the sliding block makes linear motion on the guide rail, and the arrangement of the check device is used for preventing the bead retainer from falling off, so that the rolling stability of the ball in the rotary cavity is improved.
Further preferably, the gyrator includes:
The end cover is arranged at the outer side of the rotator, clamping grooves are formed in the periphery of two sides of the lower portion of the end cover, and the cross section outline of each clamping groove is consistent with the cross section outline of the second bead blocking device and the cross section outline of the check device under the projection of the plumb bob and is used for being in limit fit with the bead blocking device.
By adopting the technical scheme, the bead retainer is accommodated in the clamping groove, so that the bead retainer is limited, and the bead retainer is prevented from falling off when the sliding block moves on the guide rail at a high speed.
Further preferably, the first bead stopper, the second bead stopper and the non-return device are connected with each other along an arc and are in arc transition, the radius of the arc is matched with the rotation radius of the ball on the rotation path, and the ball is prevented from jumping or bouncing when the rotation path rolls.
By adopting the technical scheme, the first bead retainer, the second bead retainer and the check device are integrally formed and are in circular arc transition and are connected with each other in sequence, so that the phenomenon that balls jump due to surface shearing force through a backflow section when the rotary loop rolls is reduced.
It is further preferred that the first bead retainer has a surface area of one eighth of the ball area in horizontal and plumb projection for defining a contact area of the ball surface with the guide rail surface.
By adopting the technical scheme, the ball blocking device is arranged between the ball and the guide rail, so that the ball is prevented from directly contacting the guide rail, and the contact area between the surface of the ball and the guide rail is limited.
Further preferably, the side surface of the contact side of the guide rail and the sliding block is provided with a groove along the length direction of the guide rail, and the groove is used for the sliding fit of the sliding block on the guide rail.
Further preferably, the groove includes:
The large-diameter section is arc-shaped under the projection of the plumb bob, the length direction of the large-diameter section is consistent with the movement direction of the sliding block, the notch faces to the arc-shaped groove on one side of the gyrator, and the radius of the arc is consistent with the movement path of the ball.
The small-diameter section is matched with the first bead retainer in cross section under the projection of the plumb bob, and is used for facilitating the sliding fit of the sliding block and the guide rail.
By adopting the technical scheme, the guide rail track is provided with the grooves with different diameters, the section shape of the large-diameter section groove is matched with the rolling path of the ball to realize that the sliding block moves linearly on the guide rail, and the small-diameter section groove is arranged to avoid the bead retainer when the sliding block moves linearly on the guide rail.
Further preferably, the end cap comprises:
The dustproof cover is accommodated in the cavity at one side of the end cover far away from the gyrator and is used for shielding flying dust and fragments from flying into or being stained on the gyrator or the guide rail.
Further preferably, a rotation cavity is formed in the rotator, and the rotation cavities are symmetrically distributed in the rotator and used for providing rotation movement space for the balls.
Drawings
Fig. 1 is a schematic diagram of the whole assembly in the present embodiment.
Fig. 2 is an assembly schematic diagram of the gyrator in the present embodiment.
Fig. 3 is a schematic view of the structure of the gyrator in the present embodiment.
Fig. 4 is a schematic structural view of the end cap in this embodiment.
Fig. 5 is an end view schematically showing the guide rail in the present embodiment.
Fig. 6 is a schematic structural diagram of the bead retainer in this embodiment.
Fig. 7 is an assembly schematic diagram of the bead retainer in the embodiment shown in fig. 6.
Reference numerals: 1-a ball; 2-a slider; 3-gyrators; 31-end caps; 32-clamping grooves; 33-a dust cap; 34-a swivel chamber; 4-bead blocking device; 41-a first bead retainer; 42-a second bead retainer; 43-check; 5-a guide rail; 51-large diameter section; 52-small diameter section.
Detailed Description
Under the high-speed motion state, the ball infinitely rotates and rolls in the track formed by the guide rail and the sliding block, so that the linear motion of the sliding block on the guide rail is realized, when the ball rotates and rolls in the rotary ball channel of the gyrator, the contact area is overlarge when the surface of the ball is in direct contact with the wall surface of the rotary ball channel and the wall surface of the guide rail track, the ball is easy to bounce or block due to the influence of shearing force, the guide rail pair is not smooth to operate, and even the noise is relatively large, so that the high-precision requirement is difficult to meet.
Therefore, the guide rail pair is difficult to meet the automatic and high-precision guiding requirements in the moving process due to the ball jamming.
Aiming at the technical problems, the utility model carries out the following design and conception: the ball is limited between the sliding block and the guide rail through a certain structure, and the contact area between the surface of the ball and the wall surface of the guide rail can be limited under the condition that the ball is ensured not to fall and normally roll and revolve. The utility model is described in further detail below with reference to fig. 1-7.
A buckling rotary linear guide rail, comprising: the gyrator 3 is arranged on the upper side of the guide rail 5, is connected with the guide rail 5 in a sliding way, is fixed on two side walls of the linear motion path direction of the sliding block 2, and is internally provided with a gyration cavity for providing a gyration space for the ball 1. The ball retainer 4 is arranged in the space between the rotator 3 and the guide rail 1, is respectively matched with the guide rail 1 and the sliding block 2, and limits the contact area between the surface of the ball 1 and the surface of the guide rail 5 so as to prevent the ball 1 from being blocked on the guide rail 5.
The balls 1 are guided between the two sides of the guide rail 5 and the slide block 2 by the ball stopper 4, and the balls 1 are limited between the slide block 2 and the track of the guide rail 5, so that the balls 1 are prevented from falling off. When the ball 1 continuously turns in the turning cavity 34 in the turning device 3 to realize the circulation movement, the ball blocking device 4 is arranged between the ball 1 and the track of the guide rail 5, so that the contact area between the surface of the ball 1 and the surface of the guide rail 5 is reduced, the shearing force of the surface of the guide rail 5 to the surface of the ball 1 when the ball 1 continuously rolls is reduced, the stability of the linear movement of the sliding block 2 in the guide rail 5 is improved, the ball 1 can keep continuous and smooth circulation movement in the process of moving along with the sliding block 2, the process of high-precision movement is realized, and the automatic and high-precision guiding requirements are met.
Specifically, as shown in fig. 3, 4, 6, and 7, the bead stopper 4 in this embodiment includes: the first bead stopper 41 is connected between the gyrators 3 at the front and rear ends of the slider 2 in the linear movement direction, and the plate length direction is identical to the rail length direction of the slider 2 in the guide rail 5 for smooth rolling of the balls 1 in the linear path direction.
The second bead stopper 42 is connected to one end of the first bead stopper 41, and the plate length direction is identical to the direction of the rotational movement of the balls 1 in the rotator 3, so that the balls 1 smoothly roll in the direction of the rotational path. The check device 43 is disposed at the other end of the second bead stopper 42, and the other end is bent toward the plate center of the first bead stopper 41, and the bending direction is horizontal to the plate length direction of the first bead stopper 41 and the moving direction of the slide block 2 in the guide rail 5, so as to limit the spatial position of the bead stopper 4 in the rotator 3.
Specifically, as shown in fig. 4 and 7, the gyrator 3 in the present embodiment includes: the end cover 31 is arranged outside the rotator 3, clamping grooves 32 are formed in the periphery of two sides of the lower part of the end cover 31, and the cross section outline of the clamping grooves 32 is consistent with the cross section outline of the second bead retainer 42 and the non-return plate 43 under the projection of a plumb bob and is used for being in limit fit with the bead retainer 4.
In the above-described embodiment, the left and right sides of the lower portion of the end cap 31 provided on the outer side of the rotator 3 are provided with the engaging grooves 32, and the cross-sectional profile of the engaging grooves 32 is identical to the cross-sectional profiles of the second bead stopper 42 and the check stopper 43, and the second bead stopper 42 and the check stopper 43 in this embodiment are square plates.
Specifically, as shown in fig. 6, the first bead stopper 41, the second bead stopper 42, and the check 43 are connected along the arc and transition to each other, and the radius of the arc coincides with the radius of rotation of the ball 1 on the rotation path, so as to prevent the ball 1 from jumping or bouncing during rolling of the rotation path.
The above scheme is to integrally form the first bead retainer 41, the second bead retainer 42 and the check 43, and the arc transitions are connected with each other in order to reduce the jumping phenomenon of the ball 1 due to surface shear force through the reflow section when the rotary loop rolls.
Specifically, as shown in fig. 2 and 4, in the present embodiment, the surface area of the first bead retainer 41 is one eighth of the area of the ball 1 in the horizontal and plumb projection, so as to define the contact area between the surface of the ball 1 and the surface of the guide rail 5.
In the above-described embodiment, the surface area of the first bead retainer 41 is one eighth of the area of the ball 1, which is only one of the designs in the present embodiment. The ball retainer 4 is arranged in the way that the balls 1 do not interfere with circulating rolling in the rotator 3, and the surface of the balls 1 in contact with the surface of the guide rail 5 can be better coated, so that the shearing force applied to the surface of the balls 1 is reduced.
Specifically, as shown in fig. 1 and 5, in this embodiment, a groove is formed on a side surface of the contact side of the guide rail 5 with the slider 2 along the length direction of the guide rail 5, so as to implement linear motion of the slider 2 on the guide rail 5.
Specifically, as shown in fig. 5, the groove in this embodiment includes: the large-diameter section 51 is arc-shaped under the projection of a plumb bob, the groove length direction is consistent with the movement direction of the sliding block 2, the notch faces to the arc-shaped groove on one side of the rotator 3, and the arc radius is consistent with the rotation radius of the ball 1 during rotation. The small-diameter section 52 is matched with the first bead retainer 41 in cross section shape under the projection of a plumb bob, and is used for avoiding the bead retainer 4 when the sliding block 2 moves linearly on the guide rail.
In the above scheme, the guide rail 5 is provided with grooves with different diameters so as to adapt to the sliding blocks 2 and the bead stoppers 3 with different sizes, the section shape of the large-diameter section 51 is matched with the rolling path of the balls so as to realize the linear motion of the sliding blocks on the guide rail, and the small-diameter section 52 is arranged so as to avoid the bead stoppers 3 when the sliding blocks do linear motion on the guide rail.
Specifically, as shown in fig. 1 and 4, the end cap 31 in this embodiment includes: the dust cover 33 is accommodated in the cavity of the side of the end cover 31 away from the gyrator 3, and is used for shielding flying dust and fragments from flying into or being stained on the gyrator 3 or the guide rail 5.
In the above scheme, under the high-speed motion state, the pollutant on the upper surface of the guide rail 5 can be raised and scattered, and the transfection in the track of the guide rail 5 can not be avoided. The dust cover 33 is completely accommodated in the cavity of one side of the end cover 31 far away from the gyrator 3, and the arrangement is that flying dust and debris which shield the upper surface of the guide rail 5 and the track pollute the gyrator 3, so that the gyratory bead in the gyrator 3 is not infected, the surface of the ball 1 is not polluted, and the smooth rolling stability of the ball 1 is maintained.
Specifically, as shown in fig. 3, the gyrator 3 in the present embodiment includes: the interior is provided with a rotary cavity 34, and the rotary cavities 34 are symmetrically distributed in the gyrator 3 and are used for providing rotary motion space for the balls 1.
The working procedure of this embodiment is as follows:
Referring to fig. 1 to 7, when the slider 2 moves linearly on the guide rail 5 at a high speed, a rotation chamber 34 is formed in the rotator 3 connected to both sides of the slider 2, and a rolling path formed by the chamber includes a straight line and a U-shaped detour ball 1 which enters the rotation chamber 34 and then rolls circularly according to the chamber path. When the ball 1 contacts the guide rail 5 and rolls linearly in the chamber, half of the surface of the ball 1 contacts the turning cavity 34 and the other half of the surface contacts the guide rail 5, and the first stopper 41 is disposed in the space between the ball 1 and the guide rail 5, defining the contact area between the surface of the ball 1 and the surface of the guide rail 5. When the ball 1 rolls roundabout in the cavity, the surface of the ball 1 contacts with the surface of the guide rail 5 and the surface of the revolving cavity 34, and when the ball 1 enters a straight path from the roundabout path, the second ball stopper 42 limits the contact area between the surface of the ball 1 and the surface of the revolving cavity 34 and the surface of the guide rail 5, so that the ball 1 is prevented from jumping or jamming due to shearing force, and the smooth continuous circulation movement of the ball 1 is ensured.
The present embodiment is merely illustrative of the utility model and is not intended to limit the utility model, and those skilled in the art, after having read the present specification, may make modifications to the embodiment without creative contribution as required, but are protected by patent laws within the protection scope of the present utility model.
Claims (9)
1. A buckling rotary linear guide rail, comprising:
The gyrator (3) is arranged on the upper side of the ball (1) and is in sliding connection with the guide rail (5), and is fixed on two side walls of the direction of the linear motion path of the sliding block (2), a gyration cavity (34) is formed in the gyrator, and the gyration cavity (34) is used for providing a gyration space for the ball (1);
And the ball blocking device (4) is arranged in a space between the gyrator (3) and the guide rail (5), is respectively matched with the balls (1) and the sliding blocks (2) and is used for limiting the contact area between the surfaces of the balls (1) and the guide rail (5) so as to prevent the balls (1) from being blocked on the guide rail (5).
2. The buckling rotary linear guide according to claim 1, characterized in that the bead retainer (4) comprises:
the first bead blocking device (41) is connected between the gyrators (3) at the front end and the rear end of the sliding block (2) in the linear motion direction, and the plate length direction is consistent with the rail length direction of the sliding block (2) in the guide rail (5) and is used for enabling the balls (1) in the linear path direction to roll smoothly;
The second bead retainer (42) is connected with one end of the first bead retainer (41), and the plate length direction is consistent with the rotation movement direction of the balls (1) on the rotator (3) and is used for smoothly rolling the balls (1) in the rotation path direction;
The check device (43) is arranged at the other end of the second bead retainer (42), the other end of the check device is bent towards the plate center of the first bead retainer (41), and the bending direction is horizontal to the plate length direction of the first bead retainer (41) and the moving direction of the sliding block (2) in the guide rail (5) so as to limit the spatial position of the bead retainer (4) in the rotator (3).
3. The fastening rotary linear guide according to claim 2, wherein the gyrator (3) comprises:
The end cover (31) is arranged on the outer side of the rotator (3), clamping grooves (32) are formed in the periphery of two sides of the lower portion of the end cover (31), and under the projection of a plumb bob, the cross section outline of the clamping grooves (32) is consistent with that of the second bead blocking device (42) and the non-return device (43) and is used for being in limit fit with the bead blocking device (4).
4. The rotary linear guide rail according to claim 2, wherein the first bead stopper (41), the second bead stopper (42) and the check stopper (43) are connected with each other along an arc, and the radius of the arc is matched with the radius of rotation of the ball (1) on the rotary path, so as to prevent the ball (1) from jumping or bouncing during rolling of the rotary path.
5. The buckling rotary linear guide according to claim 2, characterized in that the surface area of the first bead retainer (41) is one eighth of the area of the ball (1) in horizontal and plumb projection, for defining the contact area of the ball (1) surface with the guide (5) surface.
6. The buckling rotary type linear guide rail according to claim 5, characterized in that a groove is formed on the side surface of the contact side of the guide rail (5) with the sliding block (2) along the length direction of the guide rail, and the sliding block (2) is in linear sliding fit with the guide rail (5).
7. The clip rotary linear guide of claim 6, wherein the groove comprises:
The large-diameter section (51) is arc-shaped, the groove length direction of the large-diameter section (51) is consistent with the movement direction of the sliding block (2) under the projection of a plumb bob, the notch faces to an arc-shaped groove on one side of the gyrator (3), and the arc radius is consistent with the movement path of the ball (1);
And the small-diameter section (52) is matched with the first bead retainer (41) in cross section shape under the projection of a plumb bob, and is used for facilitating the sliding fit of the sliding block (2) and the guide rail (5).
8. A buckling rotary linear guide according to claim 3, characterized in that the end cap (31) comprises:
the dustproof cover (33) is accommodated in the cavity of one side, far away from the gyrator (3), of the end cover (31) and is used for shielding flying dust and fragments from flying into or being stained on the gyrator (3) or the guide rail (5).
9. A buckling rotary linear guide according to claim 3, characterized in that the rotary cavities (34) are symmetrically distributed on both inner walls of the gyrator (3) for providing a rotary movement space for the balls (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286804.XU CN221033625U (en) | 2023-08-24 | 2023-08-24 | Fastening rotary linear guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286804.XU CN221033625U (en) | 2023-08-24 | 2023-08-24 | Fastening rotary linear guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221033625U true CN221033625U (en) | 2024-05-28 |
Family
ID=91168136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322286804.XU Active CN221033625U (en) | 2023-08-24 | 2023-08-24 | Fastening rotary linear guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221033625U (en) |
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2023
- 2023-08-24 CN CN202322286804.XU patent/CN221033625U/en active Active
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