CN109538629B - Telescopic guide rail - Google Patents
Telescopic guide rail Download PDFInfo
- Publication number
- CN109538629B CN109538629B CN201811571603.1A CN201811571603A CN109538629B CN 109538629 B CN109538629 B CN 109538629B CN 201811571603 A CN201811571603 A CN 201811571603A CN 109538629 B CN109538629 B CN 109538629B
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- rolling
- limiting
- mounting plate
- telescopic
- transition plate
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- 230000007704 transition Effects 0.000 claims abstract description 140
- 238000005096 rolling process Methods 0.000 claims description 262
- 238000003754 machining Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention relates to a telescopic rail comprising: the first mounting plate, the transition plate and the second mounting plate are sequentially arranged at intervals and in parallel along the first direction; one of the part of the transition plate facing the first mounting plate and the part of the first mounting plate facing the transition plate is provided with a first sliding seat, and the other part is provided with a first sliding block; one of the part of the transition plate facing the second mounting plate and the part of the second mounting plate facing the transition plate is provided with a second sliding seat, and the other part is provided with a second sliding block; along the flexible direction of flexible guide rail, be equipped with first locating part and the second locating part that the interval set up on the first mounting panel, be equipped with on the transition board and be located third locating part between first locating part and the second locating part. The telescopic guide rail disclosed by the invention is smooth in telescopic drawing and is not easy to deform when being used in a high-vibration occasion.
Description
Technical Field
The invention relates to the technical field of guide rails, in particular to a telescopic guide rail.
Background
At present, a conventional full-extension linear telescopic guide rail is fastened back to back by using a bending piece or a heavy single-section guide rail, and the guide rails cannot meet the severe environment of high bearing capacity, long telescopic travel, high vibration and the like.
The existing full-extension linear telescopic guide rail adopts a bending piece or a cold-drawn steel section. The bending part telescopic guide rail can be made into a full-extension type, but can only be used in the occasion with the weight of not more than 300Kg due to the material. The telescopic guide rail made of cold drawn steel can meet the requirement of heavy load, but the limit pin is in risk of being broken when working under the heavy load state, the requirement on the machining precision of the guide rail mounting piece is relatively high, and the strength characteristic of the material can not be fully exerted when the fully-elongated form is adopted; when the guide rail is used, due to the structural characteristics, all weight can bear the weight only by bearing the steel balls, and the phenomenon of structural deformation can be generated in places without the steel balls in the use process of vibration occasions for a long time.
Disclosure of Invention
The object of the present invention is to provide a telescopic rail comprising: the first mounting plate, the transition plate and the second mounting plate are sequentially arranged at intervals and in parallel along the first direction; the part of the transition plate facing the first mounting plate is provided with a first sliding seat and one of the parts of the first mounting plate facing the transition plate, the other part of the first mounting plate facing the transition plate is provided with a first sliding seat, the first sliding seat is positioned in the first sliding seat and is in sliding connection with the first sliding seat, and the first mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail;
along the telescopic direction of the telescopic guide rail, a first limiting piece, a second limiting piece and a third limiting piece positioned between the first limiting piece and the second limiting piece are arranged between the first mounting plate and the transition plate, the first limiting piece and the second limiting piece are mounted on the first mounting plate, the third limiting piece is mounted on the transition plate, or the first limiting piece and the second limiting piece are mounted on the transition plate, and the third limiting piece is mounted on the first mounting plate;
along the first direction, a limiting piece arranged on the first mounting plate is in rolling connection with the transition plate, and a limiting piece arranged on the transition plate is in rolling connection with the first mounting plate; and/or the number of the groups of groups,
one of the part of the transition plate facing the second mounting plate and the part of the second mounting plate facing the transition plate is provided with a second sliding seat, the other part of the transition plate is provided with a second sliding block, the second sliding block is positioned in the second sliding seat and is in sliding connection with the second sliding seat, and the second mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail;
along the telescopic direction of the telescopic guide rail, a fourth limiting piece, a fifth limiting piece and a sixth limiting piece are arranged between the second mounting plate and the transition plate, the fourth limiting piece and the fifth limiting piece are mounted on the second mounting plate, the sixth limiting piece is mounted on the transition plate, or the fourth limiting piece and the fifth limiting piece are mounted on the transition plate, and the sixth limiting piece is mounted on the second mounting plate;
along the first direction, a limiting piece arranged on the second mounting plate is in rolling connection with the transition plate, and a limiting piece arranged on the transition plate is in rolling connection with the second mounting plate;
the first direction and the telescopic direction of the telescopic guide rail are mutually perpendicular.
Optionally, along the second direction, the first limiting piece, the second limiting piece and the third limiting piece are in rolling connection with the first sliding seat, the fourth limiting piece, the fifth limiting piece and the sixth limiting piece are in rolling connection with the second sliding seat, and the first direction, the second direction and the telescopic direction of the telescopic guide rail are mutually perpendicular.
Optionally, a first rolling element capable of rotating around the first direction and a second rolling element capable of rotating around the second direction are arranged on the first limiting element, the first rolling element of the first limiting element is in rolling connection with the first sliding seat, and the second rolling element of the first limiting element is in rolling connection with the transition plate; the second limiting piece is provided with a first rolling piece capable of rotating around the first direction and a second rolling piece capable of rotating around the second direction, the first rolling piece of the second limiting piece is in rolling connection with the first sliding seat, and the second rolling piece of the second limiting piece is in rolling connection with the transition plate;
the third limiting part is provided with a first rolling part capable of rotating around the first direction and a second rolling part capable of rotating around the second direction, the first rolling part of the third limiting part is in rolling connection with the first sliding seat, and the second rolling part of the third limiting part is in rolling connection with the first mounting plate.
Optionally, the fourth limiting piece is provided with a first rolling piece capable of rotating around the first direction and a second rolling piece capable of rotating around the second direction, the first rolling piece of the fourth limiting piece is in rolling connection with the second sliding seat, and the second rolling piece of the fourth limiting piece is in rolling connection with the transition plate; the first rolling element of the fifth limiting piece is in rolling connection with the second sliding seat, and the second rolling element of the fifth limiting piece is in rolling connection with the transition plate;
the sixth limiting part is provided with a first rolling part capable of rotating around the first direction and a second rolling part capable of rotating around the second direction, the first rolling part of the sixth limiting part is in rolling connection with the second sliding seat, and the second rolling part of the sixth limiting part is in rolling connection with the second mounting plate.
Optionally, the number of the second rolling elements on the first limiting element is two, and the two second rolling elements are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the first limiting element is positioned between the two second rolling elements on the first limiting element; the two second rolling elements are arranged on the second limiting element at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the second limiting element is positioned between the two second rolling elements on the second limiting element;
the two second rolling elements on the third limiting element are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the third limiting element is positioned between the two second rolling elements on the third limiting element.
Optionally, the two second rolling elements on the first limiting element are symmetrically arranged on the first limiting element, the two second rolling elements on the second limiting element are symmetrically arranged on the second limiting element, and the two second rolling elements on the third limiting element are symmetrically arranged on the third limiting element.
Optionally, the number of the second rolling elements on the fourth limiting element is two, the second rolling elements are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling elements on the fourth limiting element are positioned between the two second rolling elements on the fourth limiting element; the two second rolling elements on the fifth limiting element are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the fifth limiting element is positioned between the two second rolling elements on the fifth limiting element;
the number of the second rolling elements on the sixth limiting element is two, the second rolling elements are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling elements on the sixth limiting element are located between the two second rolling elements on the sixth limiting element.
Optionally, the two second rolling elements on the fourth limiting element are symmetrically arranged on the fourth limiting element, the two second rolling elements on the fifth limiting element are symmetrically arranged on the fifth limiting element, and the two second rolling elements on the sixth limiting element are symmetrically arranged on the sixth limiting element.
Optionally, the first mounting plate can slide along the expansion direction of the expansion guide rail relative to the transition plate until the first limiting piece is attached to the third limiting piece, or the second limiting piece is attached to the third limiting piece; the second mounting plate can slide along the telescopic direction of the telescopic guide rail relative to the transition plate until the fourth limiting piece is attached to the sixth limiting piece, or the fifth limiting piece is attached to the sixth limiting piece.
Optionally, the first limiting piece and the second limiting piece are respectively connected with the transition plate in a rolling way along the first direction through a bearing, and are connected with the first sliding seat in a rolling way along the second direction through a bearing; the third limiting piece is in rolling connection with the first mounting plate through a bearing along the first direction, and is in rolling connection with the first sliding seat through a bearing along the second direction; the fourth limiting piece and the fifth limiting piece are respectively connected with the transition plate in a rolling way along the first direction through a bearing, and are connected with the second sliding seat in a rolling way along the second direction through a bearing; the sixth limiting part is in rolling connection with the second mounting plate along the first direction through a bearing, and is in rolling connection with the second sliding seat along the second direction through a bearing.
Optionally, along the telescopic direction of the telescopic guide rail, the third limiting piece and the sixth limiting piece are respectively located at two opposite ends of the transition plate.
As described above, the present invention provides a telescopic rail including: the first mounting plate, the transition plate and the second mounting plate are sequentially arranged at intervals and in parallel along the first direction. The transition plate is provided with a first sliding seat at one of the part facing the first mounting plate and the part facing the transition plate, the other part is provided with a first sliding block, the first sliding block is positioned in the first sliding seat and is in sliding connection with the first sliding seat, and the first mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail. And/or one of the part of the transition plate facing the second mounting plate and the part of the second mounting plate facing the transition plate is provided with a second sliding seat, the other part of the transition plate is provided with a second sliding seat, the second sliding seat is positioned in the second sliding seat and is in sliding connection with the second sliding seat, and the second mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail. The first slide and the second slide are connected through the transition plate, the strength of the overlapping point of the first slide and the second slide is enhanced, or the first slide and the second slide are connected through the transition plate, the strength of the overlapping point of the first slide and the second slide is enhanced, and the material characteristics of the telescopic guide rail can be utilized to the greatest extent.
In addition, along the flexible direction of flexible guide rail, be equipped with first locating part, second locating part and be located between the first locating part and the second locating part between the first mounting panel with the second locating part, first locating part with the second locating part is installed in the first mounting panel, the third locating part is installed in the transition board, perhaps, first locating part with the second locating part is installed in the transition board, the third locating part is installed in the first mounting panel; when the first mounting plate stretches out, the second limiting piece and the third limiting piece collide, the first sliding seat and the first sliding block are prevented from collision through the ball retainer, the first sliding seat or the limiting pin on the first sliding block is prevented from being damaged, and when the first mounting plate retracts, the first limiting piece and the third limiting piece collide, so that the guide rail is prevented from moving reversely.
In addition, as the first mounting plate and the transition plate are in rolling connection through the limiting piece along the first direction, on one hand, the distance between the first sliding seat and the first sliding block in the first direction is kept consistent when the first mounting plate operates, and the phenomenon that the guide rail is not pulled smoothly due to deformation is avoided; on the other hand, the machining precision of the first mounting plate, the first sliding seat, the first sliding block and the transition plate can be reduced, the mounting and debugging are convenient, the mounting and debugging cost is reduced, and the first mounting plate and the first sliding seat have a set gap, such as 5mm, in the first direction.
Along the flexible direction of flexible guide rail, the second mounting panel with be equipped with fourth locating part, fifth locating part and be located between fourth locating part and the fifth locating part between the transition board, fourth locating part with the fifth locating part install in the second mounting panel, the sixth locating part install in the transition board, perhaps, fourth locating part with the fifth locating part install in the transition board, the sixth locating part install in the second mounting panel. . When the second mounting plate stretches out, the second sliding seat and the second sliding block are prevented from collision through the ball retainer, the limit pin on the second sliding seat or the second sliding block is prevented from being damaged, and when the second mounting plate retracts, the fourth limit piece and the fifth limit piece are impacted, so that the guide rail is prevented from moving reversely.
In addition, the second mounting plate and the transition plate are in rolling connection through the limiting piece along the first direction, so that the distance between the second sliding seat and the second sliding block in the first direction is kept consistent when the second mounting plate runs, and the phenomenon that the guide rail is not pulled smoothly due to deformation is avoided; on the other hand, the machining precision of the second mounting plate, the second sliding seat, the second sliding block and the transition plate can be reduced, the mounting and debugging are convenient, the mounting and debugging cost is reduced, and the second mounting plate and the second sliding seat have a set gap, for example, 5mm in the first direction.
In order that the above-recited features of the present invention can be understood in detail, a preferred embodiment of the invention is illustrated in the accompanying drawings.
Drawings
FIG. 1 is a top view of a telescoping rail according to an embodiment of the present invention;
FIG. 2 is a top view of a telescoping rail according to an embodiment of the present invention;
FIG. 3 is a side view of a telescoping rail of an embodiment of the present invention;
FIG. 4 is a top view III of the telescoping rail of the present invention;
FIG. 5 is a perspective view of a telescoping rail according to an embodiment of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 2;
FIG. 7 is an enlarged view of portion B of FIG. 5;
FIG. 8 is a schematic diagram showing the positional relationship of the ball cage and the balls in the second slider and the second slider according to the embodiment of the present invention;
FIG. 9 is a schematic diagram showing the positional relationship between a second slider and a limit pin on the second slider according to an embodiment of the present invention;
FIG. 10 is a second schematic diagram of the positional relationship between a second slider and a limit pin on the second slider according to the embodiment of the present invention;
fig. 11 is a schematic diagram of a third positional relationship between a second slider and a limit pin on the second slider according to an embodiment of the present invention.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Referring to fig. 1 to 3, the present invention provides a telescopic rail 10, and the telescopic rail 10 in this embodiment includes: the first mounting plate 11, the transition plate 20, and the second mounting plate 12 are sequentially arranged at intervals and in parallel along the first direction (shown in the X direction in fig. 1 to 3). Wherein, one of the portion of the transition plate 20 facing the first mounting plate 11 and the portion of the first mounting plate 11 facing the transition plate 20 is provided with a first sliding seat 21, the other is provided with a first sliding block 111, the first sliding block 111 is located in the first sliding seat 21 and is slidably connected with the first sliding seat 21, and the first mounting plate 11 can slide relative to the transition plate 20 along the telescopic direction (shown as Y direction in fig. 1 and 2) of the telescopic guide rail 10. And/or, one of the part of the transition plate 20 facing the second mounting plate 12 and the part of the second mounting plate 12 facing the transition plate 20 is provided with a second sliding seat 22, the other part is provided with a second sliding block 121, the second sliding block 121 is positioned in the second sliding seat 22 and is in sliding connection with the second sliding seat 22, and the second mounting plate 12 can slide relative to the transition plate 20 along the telescopic direction of the telescopic guide rail.
In the present embodiment, the portion of the transition plate 20 facing the first mounting plate 11 is provided with the first slider 21, and the portion of the first mounting plate 11 facing the transition plate 20 is provided with the first slider 111. In other embodiments, the portion of the transition plate facing the first mounting plate is provided with a first slider and the portion of the first mounting plate facing the transition plate is provided with a first slider.
In this embodiment, a second sliding seat 22 is disposed at a portion of the transition plate 20 facing the second mounting plate 12, a second sliding block 121 disposed in the second sliding seat 22 and slidably connected to the second sliding seat 22 is disposed at a portion of the second mounting plate 12 facing the transition plate 20, and the second mounting plate 12 can slide relative to the transition plate 20 along the telescopic direction of the telescopic rail 10. In other embodiments, the portion of the transition plate facing the second mounting plate is provided with a second slider and the portion of the second mounting plate facing the transition plate is provided with a second slider.
That is, in this embodiment, the first sliding seat and the first sliding block are provided on the first mounting plate and the transition plate, the second sliding seat and the second sliding block are provided on the second mounting plate and the transition plate, and in other embodiments, the first sliding seat and the first sliding block are provided on the first mounting plate and the transition plate, or the second sliding seat and the second sliding block are provided on the second mounting plate and the transition plate.
In this embodiment, the first sliding seat 21 and the second sliding seat 22 are connected through the transition plate 20, so as to strengthen the strength of the overlapping point of the first sliding seat 21 and the second sliding seat 22, and make the material characteristics of the telescopic rail 10 furthest utilized. In other embodiments, the first slider and the second slider are connected by a transition plate to strengthen the strength of the point where the first slider and the second slider overlap; or the first sliding block is connected with the second sliding seat through the transition plate, so that the strength of the coincident point of the first sliding block and the second sliding seat is enhanced; or the second sliding block is connected with the first sliding seat through the transition plate, so that the strength of the coincident point of the second sliding block and the first sliding seat is enhanced. The two linear telescopic guide rails 10 are connected through the transition plate 20, and the strength of the transition plate 20 is far higher than that of the riveted parts, so that the plate can exert the bearing performance of the linear telescopic guide rails 10 to the greatest extent, and the bearing capacity of the telescopic guide rails 10 is greatly improved when the linear telescopic guide rails are used.
In the present embodiment, the first mounting plate 11, the second mounting plate 12, and the transition plate 20 are flat plates, but the shape is not limited thereto, and in other embodiments, the transition plate 20 may be other shapes, and the first slider 111 may be attached to the first mounting plate 11, and the second slider 121 may be attached to the second mounting plate 12.
In the present invention, a first stopper 31, a second stopper 32, and a third stopper 33 located between the first stopper 31 and the second stopper 32 are provided between the first mounting plate 11 and the transition plate 20 along the expansion direction of the expansion guide rail. In this embodiment, referring to fig. 1 and 2 in combination with fig. 4 and 5, along the telescopic direction of the telescopic rail 10, the first mounting plate 11 is provided with a first limiting member 31 and a second limiting member 32 that are disposed at intervals, and the transition plate 20 is provided with a third limiting member 33 that is disposed between the first limiting member 31 and the second limiting member 32. In other embodiments, the first and second limiting members 31, 32 are mounted on the transition plate and the third limiting member 33 is mounted on the first mounting plate 11. As long as the third stopper 33 is made to collide with one of the first stopper 31 and the second stopper 32 when the first mounting plate is retracted, and the third stopper 33 is made to collide with the other of the first stopper 31 and the second stopper 32 when the first mounting plate is extended.
In this embodiment, the first limiting member 31 and the second limiting member 32 mounted on the first mounting plate 11 are respectively connected with the transition plate 20 in a rolling manner along a first direction (shown in an X direction in fig. 3), and are connected with the first slide seat 21 in a rolling manner along a second direction (shown in a Z direction in fig. 3); the third limiting member 33 mounted on the transition plate 20 is in rolling connection with the first mounting plate 11 along the first direction, and is in rolling connection with the first slider 21 along the second direction, and the first direction, the second direction and the telescopic direction of the telescopic rail 10 are mutually perpendicular. In other embodiments, the third limiting member 33 mounted on the first mounting plate 11 is in rolling connection with the transition plate 20 along the first direction and in rolling connection with the first slider 21 along the second direction; the first stopper 31 and the second stopper 32 mounted on the transition plate 20 are connected to the first mounting plate 11 in a rolling manner in the first direction and connected to the first slider 21 in a rolling manner in the second direction.
Referring to fig. 1 and 4, in the present embodiment, the first mounting plate 11 can slide along the telescopic direction of the telescopic rail 10 relative to the transition plate 20 until the first limiting member 31 is attached to the third limiting member 33, or the second limiting member 32 is attached to the third limiting member 33. Therefore, when the first mounting plate 11 extends, the second limiting piece 32 and the third limiting piece 33 collide, so that the first sliding block 111 and the first sliding seat 21 are prevented from being excessively pulled out, and the limit pins on the first sliding block 111 and the first sliding seat 21 are prevented from being damaged. When the first mounting plate 11 is retracted, the first stopper 31 and the third stopper 33 strike, preventing the telescopic rail from being moved in the reverse direction.
Moreover, as the first mounting plate 11 and the transition plate 20 are in rolling connection through the limiting piece along the first direction, on one hand, the distance between the first sliding seat 21 and the first sliding block 111 in the first direction is kept consistent when the first mounting plate 11 runs, and the situation that the first sliding seat 21 is propped against the first mounting plate 11 along the first direction due to deformation, so that the telescopic drawing of the guide rail is not smooth is avoided; on the other hand, the machining accuracy of mounting the first mounting plate 11, the first slider 21, the first slider 111, and the transition plate 20 can be reduced, the mounting and debugging are facilitated, the mounting and debugging costs are reduced, and the first mounting plate 11 and the first slider 21 have a set gap, for example, 5mm in the first direction.
In addition, since the first limiting piece 31, the second limiting piece 32 and the third limiting piece 33 are respectively in rolling connection with the first sliding seat 21 along the second direction, the phenomenon that the first sliding block 111 deforms and the first sliding seat 21 mutually collide due to deformation of the guide rail generated after bearing, so that the guide rail cannot work normally can be avoided, and the phenomenon that the product structure deforms when the guide rail is used in a high vibration occasion can be also solved.
In the present invention, a fourth stopper 41 and a fifth stopper 42 and a sixth stopper 43 located between the fourth stopper 41 and the fifth stopper 42 are provided between the second mounting plate 12 and the transition plate 20 in the telescopic direction of the telescopic rail. In this embodiment, referring to fig. 2, along the telescopic direction (Y direction in fig. 2) of the telescopic rail 10, a fourth limiting member 41 and a fifth limiting member 42 are disposed on the second mounting plate 12 at intervals, and a sixth limiting member 43 located between the fourth limiting member 41 and the fifth limiting member 42 is disposed on the transition plate 20. In other embodiments, the fourth and fifth limiting members 41, 42 are mounted on the transition plate and the sixth limiting member 43 is mounted on the second mounting plate 12. The sixth limiter 43 may be in collision engagement with one of the fourth limiter 41 and the fifth limiter 42 when the second mounting plate is retracted, and the sixth limiter 43 may be in collision engagement with the other of the fourth limiter 41 and the fifth limiter 42 when the second mounting plate is extended.
In this embodiment, the fourth limiting member 41 and the fifth limiting member 42 mounted on the second mounting plate 12 are respectively connected with the transition plate 20 in a rolling manner along the first direction, and are connected with the second slide 22 in a rolling manner along the second direction; the sixth limiting member 43 mounted on the transition plate 20 is in rolling connection with the second mounting plate 12 along the first direction and in rolling connection with the second slider 22 along the second direction. In other embodiments, the sixth limiting member 43 mounted on the second mounting plate 12 is in rolling connection with the transition plate 20 in the first direction and the second slider 22 in the second direction; the fourth and fifth stoppers 41 and 42 mounted on the transition plate 20 are in rolling connection with the second mounting plate 12 in the first direction and with the second slider 22 in the second direction.
In this embodiment, the second mounting plate 12 may slide along the telescopic direction of the telescopic rail 10 relative to the transition plate 20 until the fourth limiting member 41 is attached to the sixth limiting member 43, or the fifth limiting member 42 is attached to the sixth limiting member 43. Therefore, when the second mounting plate 12 extends, the sixth limiting member 43 and the fifth limiting member 42 strike, so that the second slider 121 and the second slider 22 are prevented from being excessively pulled out, and the limiting pins on the second slider 121 and the second slider 22 are prevented from being damaged. When the second mounting plate 12 is retracted, the fourth and fifth stoppers 41 and 42 strike, preventing the telescopic rail from being moved in the reverse direction.
Specifically, referring to fig. 8 to 11, taking the second slider 121 and the second slider 22 as examples, sliding connection is achieved between the second slider 121 and the second slider 22 by the balls 51 provided on the ball holder 50, and the ball holder and the balls are also provided on the first slider and the first slider. Along the extending and retracting direction of the guide rail, two ends of the second slide 22 are provided with limit pins 52 and 54, two ends of the second slide 121 are provided with limit pins 53 and 55, and fig. 9 shows the limit pins on one side of the second slide 22 and one side of the second slide 121. The two ends of the first slide 111 and the first slide 21 are also respectively provided with a limit pin, and how to set the limit pins on the second slide 22 and the second slide 121 is referred to.
Referring to fig. 11 in combination with fig. 5, when the second mounting plate 12 is extended and the guide rail is pulled to one end to the maximum stroke, one end of the ball retainer 50 contacts the stopper pin 52 on the second slider 22, and the other end of the ball retainer 50 contacts the stopper pin 55 of the second slider 121; the sixth limiting member 43 and the fifth limiting member 42 can prevent the limiting pin 55 on the second slider 121 and the limiting pin 52 on the second slider 22 from being damaged due to collision with the ball retainer 50 when the second slider 121 and the second slider 22 are excessively pulled out.
When moving in the opposite direction, one end of the ball retainer 50 contacts the limit pin 54 on the second slider 22, and the other end of the ball retainer 50 contacts the limit pin 53 of the second slider 121; the sixth limiting member 43 and the fourth limiting member 41 can be impacted, so that the limiting pin 53 on the second sliding block 121 and the limiting pin 54 on the second sliding seat 22 can be prevented from being damaged due to impact with the ball retainer 50.
In addition, as the second mounting plate 12 and the transition plate 20 are in rolling connection through the limiting piece along the first direction, on one hand, the distance between the second sliding seat 22 and the second sliding block 121 in the first direction is kept consistent when the second mounting plate 12 runs, and the situation that the second sliding seat 22 is propped against the second mounting plate 12 along the first direction due to deformation, so that the telescopic drawing of the guide rail is not smooth is avoided; on the other hand, the machining accuracy of mounting the second mounting plate 12, the second slider 22, the second slider 121 and the transition plate 20 can be reduced, the mounting and debugging are facilitated, the mounting and debugging cost is reduced, and the second mounting plate 12 and the second slider 22 have a set gap, for example, 5mm in the first direction.
In addition, since the fourth limiting member 41, the fifth limiting member 42 and the sixth limiting member 43 are respectively in rolling connection with the second sliding seat 22 along the second direction, deformation of the second sliding block 121 and mutual contact of the second sliding seat 22 caused by deformation of the guide rail after bearing can be avoided, so that the guide rail cannot work normally, and the phenomenon that the product structure is deformed when the guide rail is used in a high vibration occasion can be solved.
Specifically, in the present embodiment, as shown in fig. 3, a first rolling element 11b rotatable in a first direction (shown in an X direction in fig. 3) and a second rolling element 11a rotatable in a second direction are provided on the stopper, the first rolling element 11b of the first stopper 31 is connected to the first slider 21 in a rolling manner, and the second rolling element 11a of the first stopper 31 is connected to the transition plate 20 in a rolling manner. The second stopper 32 is provided with a first rolling element 11b rotatable in the first direction and a second rolling element 11a rotatable in a second direction (Z direction shown in fig. 3), the first rolling element 11b of the second stopper 32 is in rolling connection with the first slider 21, and the second rolling element 11a of the second stopper 32 is in rolling connection with the transition plate 20. The third stopper 33 is provided with a first rolling element 11b rotatable in the first direction and a second rolling element 11a rotatable in the second direction, the first rolling element 11b of the third stopper 33 is connected to the first slider 21 in a rolling manner, and the second rolling element 11a of the third stopper 33 is connected to the first mounting plate 11 in a rolling manner.
In this embodiment, the telescopic rail 10 supports the gap between the first mounting plate 11 and the transition plate 20 in the first direction through the second rolling element 11a on the first limiting member 31, the second rolling element 11a on the second limiting member 32, and the second rolling element 11a on the third limiting member 33, so that the telescopic rail 10 is smoothly pulled out. The first rolling element 11b on the first limiting element 31, the first rolling element 11b on the second limiting element 32 and the first rolling element 11b on the third limiting element 33 can support the telescopic guide rail 10, so that the phenomenon that the telescopic guide rail 10 cannot work normally due to the fact that the first sliding block 111 and the first sliding seat 21 are mutually contacted due to deformation generated after the telescopic guide rail 10 is subjected to bearing can be avoided, and the phenomenon that the product structure is deformed when the telescopic guide rail is used in a high-vibration occasion can be solved.
With continued reference to fig. 2 and 3, and with reference to fig. 5 to 7, in this embodiment, the fourth stopper 41 is provided with a first rolling member 12b capable of rotating in a first direction (shown in an X direction in fig. 3) and a second rolling member 12a capable of rotating in a second direction (shown in a Z direction in fig. 3), the first rolling member 12b of the fourth stopper 41 is in rolling connection with the second slider 22, and the second rolling member 12a of the fourth stopper 41 is in rolling connection with the transition plate 20. The fifth stopper 42 is provided with a first rolling element 12b rotatable in the first direction and a second rolling element 12a rotatable in the second direction, the first rolling element 12b of the fifth stopper 42 is in rolling connection with the second slider 22, and the second rolling element 12a of the fifth stopper 42 is in rolling connection with the transition plate 20. The sixth stopper 43 is provided with a first rolling element 12b rotatable in the first direction and a second rolling element 12a rotatable in the second direction, the first rolling element 12b of the sixth stopper 43 is connected to the second slider 22 in a rolling manner, and the second rolling element 12a of the sixth stopper 43 is connected to the second mounting plate 12 in a rolling manner.
In this embodiment, the telescopic rail 10 supports the gap between the second mounting plate 12 and the transition plate 20 in the first direction by the second rolling element 12a on the fourth limiting member 41, the second rolling element 12a on the fifth limiting member 42, and the second rolling element 12a on the sixth limiting member 43, so that the telescopic rail 10 is smoothly drawn. The first rolling element 12b on the fourth limiting element 41, the first rolling element 12b on the fifth limiting element 42 and the first rolling element 12b on the sixth limiting element 43 can support the telescopic guide rail 10, so that the phenomenon that the telescopic guide rail 10 cannot work normally due to the fact that the second sliding block 121 and the second sliding seat 22 are mutually contacted due to deformation generated after the telescopic guide rail 10 is subjected to bearing can be avoided, and the phenomenon that the product structure is deformed when the telescopic guide rail is used in a high-vibration occasion can be solved.
The number of the rolling elements on the limiting piece is not limited, and rolling connection can be realized. In this embodiment, two second rolling elements 11a are arranged on the first limiting element 31 at intervals along the telescopic direction of the telescopic guide rail 10, and one first rolling element 11b is arranged on the first limiting element 31 and is located between the two second rolling elements 11a on the first limiting element 31. The number of the second rolling elements 11a on the second limiting member 32 is two, and the two second rolling elements 11a are arranged at intervals along the telescopic direction of the telescopic guide rail 10, and the number of the first rolling elements 11b on the second limiting member 32 is one and is positioned between the two second rolling elements 11a on the second limiting member 32. The number of the second rolling elements 11a on the third limiting member 33 is two, the second rolling elements 11a are arranged at intervals along the telescopic direction of the telescopic guide rail 10, the number of the first rolling elements 11b on the third limiting member 33 is one, and the first rolling elements 11b are positioned between the two second rolling elements 11a on the third limiting member 33.
In this embodiment, along the telescopic direction of the telescopic rail 10, the two second rolling elements 11a on the first limiting member 31 are symmetrically disposed on the first limiting member 31, the two second rolling elements 11a on the second limiting member 32 are symmetrically disposed on the second limiting member 32, and the two second rolling elements 11a on the third limiting member 33 are symmetrically disposed on the third limiting member 33. The rolling elements are symmetrically arranged on the limiting elements, so that the first limiting element 31, the second limiting element 32 and the third limiting element 33 are convenient to install.
In addition, referring to fig. 6 and 7, in the present embodiment, two second rolling elements 12a are disposed on the fourth limiting member 41 at intervals along the telescopic direction of the telescopic rail 10, and one first rolling element 12b is disposed on the fourth limiting member 41 and is located between the two second rolling elements 12a on the fourth limiting member 41. The number of the second rolling elements 12a on the fifth limiting element 42 is two, and the two second rolling elements 12a are arranged at intervals along the telescopic direction of the telescopic guide rail 10, and the number of the first rolling elements 12b on the fifth limiting element 42 is one and is located between the two second rolling elements 12a on the fifth limiting element 42. The number of the second rolling elements 12a on the sixth limiting element 43 is two, and the two second rolling elements 12a are arranged at intervals along the telescopic direction of the telescopic guide rail 10, and the number of the first rolling elements 12b on the sixth limiting element 43 is one and is positioned between the two second rolling elements 12a on the sixth limiting element 43.
In this embodiment, along the extending direction of the extending guide rail 10, the two second rolling elements 12a on the fourth limiting member 41 are symmetrically disposed on the fourth limiting member 41, the two second rolling elements 12a on the fifth limiting member 42 are symmetrically disposed on the fifth limiting member, and the two second rolling elements 12a on the sixth limiting member 43 are symmetrically disposed on the sixth limiting member 43. The rolling elements are symmetrically arranged on the limiting elements, so that the fourth limiting element 41, the fifth limiting element 42 and the sixth limiting element 43 are convenient to install.
In addition, referring to fig. 3, in the present embodiment, along the second direction (shown in the Z direction in fig. 3), the upper surface of the first mounting plate 11, the upper surface of the transition plate 20, and the upper surface of the second mounting plate 12 are flush, and the lower surface of the first mounting plate 11, the lower surface of the transition plate 20, and the lower surface of the second mounting plate 12 are flush. That is, in the second direction, the upper and lower surfaces of the telescopic rail 10 are plane. This facilitates the use of the telescopic rail 10 and the telescopic rail 10 carries objects.
It should be noted that the rolling element of the present invention is not limited in type, and in this embodiment, the rolling element is a bearing, and in other embodiments, the rolling element is a ball.
That is, in the present embodiment, the first stopper 31 and the second stopper 32 are respectively connected to the transition plate 20 in a rolling manner along the first direction by a bearing, and are connected to the first slider 21 in a rolling manner along the second direction by a bearing; the third limiting member 33 is in rolling connection with the first mounting plate 11 through a bearing in the first direction, and in rolling connection with the first slider 21 through a bearing in the second direction. The fourth limiting member 41 and the fifth limiting member 42 are respectively connected with the transition plate 20 in a rolling manner along the first direction through a bearing, and are connected with the second slide seat 22 in a rolling manner along the second direction through a bearing; the sixth limiting member 43 is in rolling connection with the second mounting plate 12 via a bearing in the first direction and in rolling connection with the second slider 22 via a bearing in the second direction.
Further, the third stopper 33 and the sixth stopper 43 are respectively located at opposite ends of the transition plate 20 in the telescopic direction of the telescopic rail 10. Thus, as shown in fig. 4 and 5, when the first mounting plate 11 and the second mounting plate 12 are extended in opposite directions, the full stroke of the telescopic rail 10 is achieved.
In summary, the above embodiments are provided to illustrate the principles of the present invention and its efficacy, but not to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (11)
1. A telescoping rail, comprising:
the first mounting plate, the transition plate and the second mounting plate are sequentially arranged at intervals and in parallel along the first direction; wherein,
one of the part of the transition plate facing the first mounting plate and the part of the first mounting plate facing the transition plate is provided with a first sliding seat, the other part of the first mounting plate facing the transition plate is provided with a first sliding block, the first sliding block is positioned in the first sliding seat and is in sliding connection with the first sliding seat, and the first mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail;
along the telescopic direction of the telescopic guide rail, a first limiting piece, a second limiting piece and a third limiting piece positioned between the first limiting piece and the second limiting piece are arranged between the first mounting plate and the transition plate, the first limiting piece and the second limiting piece are mounted on the first mounting plate, the third limiting piece is mounted on the transition plate, or the first limiting piece and the second limiting piece are mounted on the transition plate, and the third limiting piece is mounted on the first mounting plate;
along the first direction, a limiting piece arranged on the first mounting plate is in rolling connection with the transition plate, and a limiting piece arranged on the transition plate is in rolling connection with the first mounting plate; and/or the number of the groups of groups,
one of the part of the transition plate facing the second mounting plate and the part of the second mounting plate facing the transition plate is provided with a second sliding seat, the other part of the transition plate is provided with a second sliding block, the second sliding block is positioned in the second sliding seat and is in sliding connection with the second sliding seat, and the second mounting plate can slide relative to the transition plate along the telescopic direction of the telescopic guide rail;
along the telescopic direction of the telescopic guide rail, a fourth limiting piece, a fifth limiting piece and a sixth limiting piece are arranged between the second mounting plate and the transition plate, the fourth limiting piece and the fifth limiting piece are mounted on the second mounting plate, the sixth limiting piece is mounted on the transition plate, or the fourth limiting piece and the fifth limiting piece are mounted on the transition plate, and the sixth limiting piece is mounted on the second mounting plate;
along the first direction, a limiting piece arranged on the second mounting plate is in rolling connection with the transition plate, and a limiting piece arranged on the transition plate is in rolling connection with the second mounting plate;
the first direction and the telescopic direction of the telescopic guide rail are mutually perpendicular.
2. The telescoping rail of claim 1, wherein the first, second and third stop members are in rolling connection with the first carriage along a second direction, the fourth, fifth and sixth stop members are in rolling connection with the second carriage, and the telescoping directions of the first, second and telescoping rails are perpendicular to each other.
3. The telescopic guide rail according to claim 2, wherein the first limiting member is provided with a first rolling member capable of rotating around the first direction and a second rolling member capable of rotating around the second direction, the first rolling member of the first limiting member is in rolling connection with the first sliding seat, and the second rolling member of the first limiting member is in rolling connection with the transition plate;
the second limiting piece is provided with a first rolling piece capable of rotating around the first direction and a second rolling piece capable of rotating around the second direction, the first rolling piece of the second limiting piece is in rolling connection with the first sliding seat, and the second rolling piece of the second limiting piece is in rolling connection with the transition plate;
the third limiting part is provided with a first rolling part capable of rotating around the first direction and a second rolling part capable of rotating around the second direction, the first rolling part of the third limiting part is in rolling connection with the first sliding seat, and the second rolling part of the third limiting part is in rolling connection with the first mounting plate.
4. The telescopic guide rail according to claim 2, wherein the fourth limiting member is provided with a first rolling member capable of rotating around the first direction and a second rolling member capable of rotating around the second direction, the first rolling member of the fourth limiting member is in rolling connection with the second sliding seat, and the second rolling member of the fourth limiting member is in rolling connection with the transition plate;
the first rolling element of the fifth limiting piece is in rolling connection with the second sliding seat, and the second rolling element of the fifth limiting piece is in rolling connection with the transition plate;
the sixth limiting part is provided with a first rolling part capable of rotating around the first direction and a second rolling part capable of rotating around the second direction, the first rolling part of the sixth limiting part is in rolling connection with the second sliding seat, and the second rolling part of the sixth limiting part is in rolling connection with the second mounting plate.
5. A telescopic rail as claimed in claim 3, wherein the number of second rolling elements on the first limiting member is two, and the first rolling elements on the first limiting member are arranged at intervals along the telescopic direction of the telescopic rail, and the first rolling elements on the first limiting member are positioned between the two second rolling elements on the first limiting member;
the two second rolling elements are arranged on the second limiting element at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the second limiting element is positioned between the two second rolling elements on the second limiting element;
the two second rolling elements on the third limiting element are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the third limiting element is positioned between the two second rolling elements on the third limiting element.
6. The telescoping rail of claim 5, wherein two second rolling elements on the first stop member are symmetrically disposed on the first stop member, two second rolling elements on the second stop member are symmetrically disposed on the second stop member, and two second rolling elements on the third stop member are symmetrically disposed on the third stop member.
7. The telescopic guide rail of claim 4, wherein the number of the second rolling elements on the fourth limiting element is two, and the second rolling elements are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling elements on the fourth limiting element are positioned between the two second rolling elements on the fourth limiting element;
the two second rolling elements on the fifth limiting element are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling element on the fifth limiting element is positioned between the two second rolling elements on the fifth limiting element;
the number of the second rolling elements on the sixth limiting element is two, the second rolling elements are arranged at intervals along the telescopic direction of the telescopic guide rail, and the first rolling elements on the sixth limiting element are located between the two second rolling elements on the sixth limiting element.
8. The telescoping rail of claim 7, wherein two second rolling elements on the fourth stop member are symmetrically disposed on the fourth stop member, two second rolling elements on the fifth stop member are symmetrically disposed on the fifth stop member, and two second rolling elements on the sixth stop member are symmetrically disposed on the sixth stop member.
9. The telescoping rail of claim 1, wherein the first mounting plate is slidable relative to the transition plate in a telescoping direction of the telescoping rail until the first stop engages the third stop or the second stop engages the third stop; the second mounting plate can slide along the telescopic direction of the telescopic guide rail relative to the transition plate until the fourth limiting piece is attached to the sixth limiting piece, or the fifth limiting piece is attached to the sixth limiting piece.
10. The telescoping rail of claim 1, wherein the first and second stop members are each in rolling engagement with the transition plate via bearings in the first direction and in rolling engagement with the first carriage via bearings in the second direction; the third limiting piece is in rolling connection with the first mounting plate through a bearing along the first direction, and is in rolling connection with the first sliding seat through a bearing along the second direction;
the fourth limiting piece and the fifth limiting piece are respectively connected with the transition plate in a rolling way along the first direction through a bearing, and are connected with the second sliding seat in a rolling way along the second direction through a bearing; the sixth limiting part is in rolling connection with the second mounting plate along the first direction through a bearing, and is in rolling connection with the second sliding seat along the second direction through a bearing.
11. The telescoping rail of claim 1, wherein the third and sixth stop members are located at opposite ends of the transition plate, respectively, along the telescoping direction of the telescoping rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571603.1A CN109538629B (en) | 2018-12-21 | 2018-12-21 | Telescopic guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571603.1A CN109538629B (en) | 2018-12-21 | 2018-12-21 | Telescopic guide rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538629A CN109538629A (en) | 2019-03-29 |
| CN109538629B true CN109538629B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811571603.1A Active CN109538629B (en) | 2018-12-21 | 2018-12-21 | Telescopic guide rail |
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| CN (1) | CN109538629B (en) |
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| CN109538629A (en) | 2019-03-29 |
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