Limiting device and guide rail assembly
By installing a limiting device on the linear guide rail, the sliding groove and screw mechanism of the moving mechanism and locking mechanism are used to solve the problems of slider slide and stroke control, and the effective limit and stroke adjustment of the slider is achieved.
Patent Information
- Application Number
- CN202323606527.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Ordinary linear guides lack limiting devices, which causes the slider to slide off at both ends of the guide rail and cannot effectively control the stroke of the slider on the guide rail.
Design a limiting device, including a moving mechanism and a locking mechanism, through the slide groove and screw mechanism, the moving block moves in the direction of the rail extension, the stop limits the slide, and is clamped or loosened by the locking member. To control the slider's stroke.
Effectively prevent the slider from falling off from both ends of the guide rail and allow the slider to adjust the stroke on the guide rail, improving the service life of the slider and the control ability on the guide rail.
Smart Images
Figure CN222363289U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of linear guide rails, and in particular, to a limiting device and a guide rail assembly. Background Art
[0002] In the related art, the slider can move along the extension direction of the linear guide rail, while the two ends of the ordinary linear guide rail are usually open-type designs, that is, there are no limit devices at both ends of the guide rail. When the slider moves along the extension direction of the guide rail, it is easy to slide from the two ends of the guide rail, causing damage to the slider and affecting its use. At the same time, the guide rail without a limit device is not convenient for controlling the stroke of the slider on the guide rail. Utility Model Content
[0003] The purpose of the present disclosure is to provide a limit device and a guide rail assembly, wherein the limit device can be connected to the guide rail to limit the slider, and can also move along the extension direction of the guide rail to control the stroke of the slider on the guide rail, thereby preventing the slider from falling off from both ends of the guide rail, so as to at least partially solve the above-mentioned technical problems.
[0004] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides a limiting device for limiting the position of a slider on a guide rail, the limiting device comprising: a moving mechanism, comprising a moving block capable of moving along the extension direction of the guide rail, the moving block being provided with a stop surface for limiting the position of the slider, the moving block being further provided with a slide groove perpendicular to the extension direction of the guide rail; a locking mechanism, comprising a first locking member slidably connected to the slide groove and a second locking member connected to the moving block and capable of driving the first locking member to clamp or release the guide rail;
[0005] Optionally, the first locking member includes two locking blocks that can slide along the extension direction of the slide groove, the two locking blocks are arranged at intervals on both sides of the guide rail, and the locking blocks are provided with threaded holes along the first direction; the second locking member includes two screws threadedly connected to the threaded holes and corresponding to the locking blocks one by one, the screws can drive the locking blocks to slide along the extension direction of the slide groove to control the locking blocks to be clamped or loosened on the guide rail.
[0006] Optionally, two opposite protrusions are provided on the two locking blocks, and when the locking blocks are clamped on the guide rail, the protrusions on the locking blocks abut against the side walls of the guide rail.
[0007] Optionally, the second locking member further includes a handwheel capable of driving the screw rod to rotate, and the handwheel is connected to an end of the screw rod away from the threaded hole.
[0008] Optionally, the slide groove passes through the moving block, and the locking mechanism further includes a limiting plate connected to the opposite side walls of the moving block and covering the openings at both ends of the slide groove.
[0009] Optionally, the limiting plate is provided with an opening, and the screw rod passes through the opening and is screwed to the threaded hole of the locking block.
[0010] Optionally, the movable block is also provided with an installation groove connected to the slide groove, and the limiting device also includes a rolling mechanism located in the installation groove, the rolling mechanism is rollingly connected to the guide rail, and can roll along the extension direction of the guide rail when the locking block is released from the guide rail.
[0011] Optionally, the rolling mechanism includes: two mounting frames arranged on opposite sides of the mounting groove perpendicular to the extension direction of the guide rail, and the mounting frames are provided with mounting holes; and a roller, both ends of the roller are rotatably connected to the mounting holes of the two mounting frames, and the roller rolls and abuts against the upper surface of the guide rail.
[0012] Optionally, there are multiple rollers, which are connected to the mounting frame at intervals along the extension direction of the guide rail.
[0013] A second aspect of the present disclosure provides a guide rail assembly, comprising a guide rail, a slider and a limit device, wherein the slider is slidably connected to the guide rail, and the limit devices are two in number and unlockably connected to the guide rail, and the two limit devices are respectively arranged on opposite sides of the slider, and the limit devices adopt the limit devices described in any of the above-mentioned optional schemes.
[0014] Through the above technical scheme, that is, the limit device provided by the present invention, when the limit device is installed on the guide rail 3, when the first locking piece is released from the guide rail, the position of the moving block on the guide rail can be adjusted by the relative sliding between the slide groove and the guide rail, and then the stroke of the slider on the guide rail can be adjusted. When the moving block moves to a specified position, such as moving to both ends of the guide rail, the first locking piece can be driven by the second locking piece to clamp the guide rail. At this time, the moving block will also be fixed on the guide rail in the clamping state of the first locking piece and the guide rail. When the slider slides along the extension direction of the guide rail, when the slider gradually slides to the two ends of the guide rail, the stop surface of the moving block will stop the slider to achieve the effect of limiting the slider, thereby preventing the slider from continuing to move along the extension direction of the guide rail and possibly falling off the guide rail.
[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0017] Figure 1 is a front view of a limiting device provided in an exemplary embodiment of the present disclosure;
[0018] Figure 2 is an exploded view of a limiting device provided in an exemplary embodiment of the present disclosure;
[0019] Figure 3 is a top view of a position limiting device provided in an exemplary embodiment of the present disclosure;
[0020] Figure 4 is a cross-sectional view of a first locking member clamped on a guide rail in a limiting device provided in an exemplary embodiment of the present disclosure;
[0021] Figure 5 is a cross-sectional view of a first locking member released from a guide rail in a limiting device provided in an exemplary embodiment of the present disclosure;
[0022] Figure 6 is a schematic diagram of a guide rail assembly provided in an exemplary embodiment of the present disclosure.
[0023] Description of Reference Numerals
[0024] 1-moving mechanism; 110-moving block; 111-stop surface; 112-slide groove; 113-mounting groove; 2-locking mechanism; 210-first locking member; 211-locking block; 2111-protrusion; 212-threaded hole; 220-second locking member; 221-screw; 222-handwheel; 230-limiting plate; 231-opening; 3-guide rail; 4-slider; 5-rolling mechanism; 510-mounting frame; 511-mounting hole; 520-roller. DETAILED DESCRIPTION
[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0026] In the present disclosure, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the up, down, left, and right of the drawing direction in the specified drawings, "inside and outside" refer to the inside and outside relative to the outline of the component or structure itself, and "first and second" and the like are used to distinguish one element from another and have no order or importance. In addition, the same figure marks in different reference drawings represent the same elements.
[0027] In the related art, the slider can move along the extension direction of the linear guide rail, while the two ends of an ordinary linear guide rail are usually open-ended, that is, there are no limit devices at both ends of the guide rail. When the slider moves along the extension direction of the guide rail, it is easy to slide from the two ends of the guide rail, causing damage to the slider and affecting its use. At the same time, a guide rail without a limit device is not convenient for controlling the stroke of the slider on the guide rail.
[0028] Based on the above technical problems, the first aspect of the present disclosure provides a limiting device for limiting the position of a slider on a guide rail, referring to Figures 1 to 6 As shown, the limiting device includes a moving mechanism 1 and a locking mechanism 2. The moving mechanism 1 includes a moving block 110 that can move along the extension direction of the guide rail 3. The moving block 110 is provided with a stop surface 111 for limiting the slider 4. The moving block 110 is also provided with a slide groove 112 perpendicular to the extension direction of the guide rail 3; the locking mechanism 2 includes a first locking member 210 slidably connected to the slide groove 112 and a second locking member 220 connected to the moving block 110 and capable of driving the first locking member 210 to clamp or release the guide rail 3.
[0029] When the first locking member 210 is released from the guide rail 3, the position of the movable block 110 on the guide rail 3 can be adjusted by the relative sliding between the slide groove 112 and the guide rail 3, and then the stroke of the slider 4 on the guide rail 3 can be adjusted. When the movable block 110 moves to the specified position, for example, to the two ends of the guide rail, the first locking member 210 can be driven by the second locking member 220 to clamp the guide rail 3. At this time, the movable block 110 will also be fixed on the guide rail 3 in the clamping state of the first locking member 210 and the guide rail 3. When the slider 4 slides along the extension direction of the guide rail 3, when the slider 4 gradually slides to the two ends of the guide rail, the stop surface 111 of the movable block 110 will stop the slider 4 to achieve the effect of limiting the slider 4, and then the slider 4 can be prevented from continuing to move along the extension direction of the guide rail 3 and possibly falling off the guide rail 3.
[0030] It should be noted that any suitable number of the limit devices can be arranged in the extension direction of the guide rail 3. For example, the number of the limit devices can be two, and the two limit devices can be respectively located at the two ends of the guide rail 3. In this way, no matter how the slider 4 moves on the guide rail 3, the two stop surfaces 111 of the two limit devices at both ends can limit the slider 4, thereby preventing the slider 4 from falling off the guide rail 3. At the same time, the limit device can also adjust the position of the moving block 110 on the guide rail 3 when the first locking member 210 is released from the guide rail 3. For example, the two limit devices mentioned in the aforementioned specific embodiment can approach or move away from each other in the extension direction of the guide rail 3, thereby controlling the travel distance of the slider 4. Alternatively, three, four or more limit devices can be arranged in the extension direction of the guide rail 3, and one or more sliders 4 can be arranged between any two adjacent limit devices. In this way, on the same guide rail 3, the travel of multiple sliders 4 can also be controlled simultaneously.
[0031] In addition, in the above-mentioned specific embodiment, the first locking member 210 and the second locking member 220 can also be constructed as any suitable locking members. For example, the first locking member 210 can be a clamp or a clamp that can be clamped or released on the guide rail 3, so as to be able to clamp or release on the guide rail 3, and the second locking member 220 can be a push rod or a driving motor that can push and pull the aforementioned clamp or clamp, so as to be able to control the clamp or clamp to clamp or release on the guide rail 3.
[0032] In some embodiments, reference Figures 1 to 6 As shown, the first locking member 210 includes two locking blocks 211 that can slide along the extension direction of the slide slot 112. The two locking blocks 211 are arranged at intervals on both sides of the guide rail 3. The locking blocks 211 are provided with threaded holes 212 along the first direction. The second locking member 220 includes two screw rods 221 that are threadedly connected to the threaded holes 212 and correspond to the locking blocks 211 one by one. The screw rods 221 can drive the locking blocks 211 to slide along the extension direction of the slide slot 112 to control the locking blocks 211 to be clamped or loosened on the guide rail 3. In this way, when the screw rods 221 are threadedly connected to the threaded holes 212, they can rotate relative to the threaded holes 212. During the rotation, the locking blocks 211 will move along the extension direction of the slide slot 112, that is, similar to the movement of the screw rod, the two locking blocks 211 can be moved closer to or farther away from each other by the rotation of the two screw rods 221 to clamp or loosen on the guide rail 3, that is, it can be referred to Figure 4 and Figure 5 As shown, Figure 4 The effect shown in the figure is that the two locking blocks 211 are clamped on the guide rail 3. Figure 5The effect shown is that the two locking blocks 211 are loosened on the guide rail 3, and the rotation direction of the screw 221 and the threaded hole 212 can be arbitrarily suitable. For example, when the two screws 221 are rotated clockwise, the two locking blocks 211 can approach each other, and when the two screws 221 are rotated counterclockwise, the two locking blocks 211 can move away from each other. Alternatively, it can also be set that when the two screws 221 are rotated counterclockwise, the two locking blocks 211 can be driven to approach each other, and when the two screws 221 are rotated clockwise, the two locking blocks can be driven to move away from each other. Under the premise that the two locking blocks 211 can approach or move away from each other to clamp or loosen on the guide rail 3, the present disclosure does not specifically limit the rotation direction of the screw 221 and the threaded hole 212.
[0033] In addition, in another embodiment, the number of screw rods 221 can also be one, and the screw rod 221 can be a bidirectional threaded rod, that is, it includes both left-handed threads and right-handed threads. The screw rod 221 can also pass through two threaded holes 212 (not shown in the figure) on the two locking blocks 211 at the same time, wherein the left-handed thread is connected to one of the threaded holes 212, and the right-handed thread is connected to the other threaded hole 212. In this way, when the screw rod 221 rotates clockwise, the two locking blocks 211 can also approach each other, and when it rotates counterclockwise, the two locking blocks 211 can also move away from each other, thereby also being able to meet the requirement that the two locking blocks 211 can approach or move away from each other to clamp or loosen the guide rail 3.
[0034] In some embodiments, reference Figure 1 , Figure 4 and Figure 5 As shown, two locking blocks 211 are provided with two opposite protrusions 2111. When the locking blocks 211 are clamped on the guide rail 3, the protrusions 2111 on the locking blocks 211 abut against the side walls of the guide rail 3. In this way, when the locking blocks 211 are clamped on the guide rail 3, the protrusions 2111 can also limit the guide rail 3. Figure 4 As shown in the effect, the two protrusions 2111 can be clamped with the groove below the guide rail 3, thereby preventing the limiting device from detaching from the guide rail 3 from the upper end surface of the guide rail 3 when fixed to the guide rail 3, further improving the stability of the limiting device when fixed to the guide rail 3.
[0035] In addition, the protrusion 2111 can also select any appropriate structure according to the different cross-sectional shapes of the guide rail 3, for example, Figure 4 The cross-sectional shape of the guide rail 3 shown in the figure is an I-shape, and the protrusion 2111 can abut against the concave groove of the I-shaped guide rail 3. When the cross-sectional shape of the guide rail 3 is a rectangle of an ordinary guide rail, the protrusion 2111 can directly embrace the lower bottom surface of the guide rail 3. The present disclosure does not make any specific limitation on this.
[0036] In some embodiments, reference Figures 1 to 6 As shown, the second locking member 220 further includes a hand wheel 222 capable of driving the screw rod 221 to rotate, and the hand wheel 222 is connected to an end of the screw rod 221 away from the threaded hole 212. In this way, the staff can drive the screw rod 221 to rotate more effortlessly by turning the hand wheel 222, and finally the locking block 211 can be moved in the extension direction of the slide groove 112, so as to be clamped or loosened on the guide rail 3.
[0037] In some embodiments, reference Figures 1 to 6 As shown, the slide groove 112 runs through the moving block 110, and the locking mechanism 2 also includes a limit plate 230 connected to the opposite side walls of the moving block 110 and covering the openings at both ends of the slide groove 112. In this way, the two limit plates 230 located on the two side walls of the moving block 110 can have a limiting effect on the locking block 211, that is, can prevent the locking block 211 from being separated from the slide groove 112 at both ends of the slide groove 112. In addition, the connection method of the limit plate 230 and the moving block 110 can also be any appropriate one. For example, in the present disclosure, the side wall of the moving block 110 and the surface of the limit plate 230 are provided with holes, and the moving block 110 and the limit plate 230 can be connected by bolt fasteners.
[0038] In some embodiments, reference Figures 1 to 6 As shown, the limiting plate 230 is provided with an opening 231, and the screw rod 221 passes through the opening 231 and is screwed to the threaded hole 212 of the locking block 211. In this way, the screw rod 221 can pass through the opening of the limiting plate 230 and be screwed to the locking block 211, which can improve the compactness of the overall structure of the limiting device. In this way, the screw rod 221 can also be further limited by the opening 231 on the limiting plate 230. When the screw rod 221 rotates relative to the threaded hole 212 of the locking block 211, the screw rod 221 will also rotate relative to the opening 231, which can also improve the stability of the screw rod 221 during rotation.
[0039] In some embodiments, reference Figures 1 to 6 As shown, the moving block 110 is further provided with a mounting groove 113 connected to the slide groove 112, and the limiting device further includes a rolling mechanism 5 located in the mounting groove 113, the rolling mechanism 5 is rollingly connected to the guide rail 3, and can roll along the extension direction of the guide rail 3 when the locking block 211 is released from the guide rail 3. In this way, the rolling mechanism 5 located in the mounting groove 113 can facilitate the moving block 110 to move in the extension direction of the guide rail 3 to adjust the position when the locking block 211 releases the guide rail 3, that is, the rolling mechanism 5 rolls relative to the surface of the guide rail 3, thereby improving the smoothness of the moving block 110 moving along the extension direction of the guide rail 3.
[0040] In some embodiments, reference Figures 1 to 6As shown, the rolling mechanism 5 includes a mounting frame 510 and a roller 520. There are two mounting frames 510 arranged on opposite sides of the mounting groove 113 perpendicular to the extension direction of the guide rail 3. The mounting frames 510 are provided with mounting holes 511. The two ends of the roller 520 are rotatably connected to the mounting holes 511 of the two mounting frames 510, and the roller 520 rolls against the upper surface of the guide rail 3. In this way, the roller 520 connected to the mounting frame 510 can roll against the upper surface of the guide rail 3, that is, Figure 5 As shown in the effect, when the locking block 211 is loosened from the guide rail 3, the moving block 110 can be moved along the extension direction of the guide rail 3 by the roller 520, thereby improving the smoothness of the moving block 110 moving on the guide rail 3. Figure 4 When the effect is shown, the roller 520 can also cooperate with the protrusion 2111 to clamp the guide rail 3.
[0041] In some embodiments, reference Figures 1 to 6 As shown, there are multiple rollers 520 and they are connected to the mounting frame 510 at intervals along the extension direction of the guide rail 3. In this way, when the moving block 110 moves along the extension direction of the guide rail 3, the multiple rollers 520 can abut against the upper surface of the guide rail 3 together, thereby reducing the force on a single roller 520 and improving the stability of the moving block 110 sliding along the extension direction of the guide rail 3.
[0042] In a second aspect of the present disclosure, a guide rail assembly is provided, referring to Figure 6 As shown, it includes a guide rail 3, a slider 4 and a limit device. The slider 4 is slidably connected to the guide rail 3. There are two limit devices and they are unlockably connected to the guide rail 3. The two limit devices are respectively arranged on the opposite sides of the slider 4, and the limit device has all the beneficial effects of the above-mentioned specific embodiments. The two limit devices located on the opposite sides of the slider 4 can limit the slider 4 on the guide rail 3. At the same time, the limit device can also be locked or unlocked at any position of the guide rail 3, so as to control and limit the travel distance of the slider 4.
[0043] The present disclosure exemplarily describes the process of limiting the slider 4 using the limiting device, which may include the following steps:
[0044] When the slider 4 is located on the guide rail 3, the slide grooves 112 of the two limiting devices are inserted from the two ends of the guide rail 3, and the position of the moving block 110 on the guide rail 3 is adjusted. When the position of the moving block 110 is determined, the staff can rotate the two hand wheels 222, and the hand wheels 222 drive the screw 221 to rotate, and then drive the two locking blocks 211 to approach each other to clamp the guide rail 3. When the two locking blocks 211 clamp the guide rail 3, the two protrusions 2111 on the two locking blocks 211 will also hold the guide rail 3 tightly. The two limiting devices are fixed according to the above steps, and the step of installing the limiting device on the guide rail 3 can be completed, and then the slider 4 on the guide rail 3 can be limited.
[0045] When it is necessary to control the travel distance of the slider 4 on the guide rail 3, the handwheel 222 of the limit device can be rotated in the reverse direction, so that the two locking blocks 211 can be loosened on the guide rail 3. At this time, the position of the moving block 110 on the guide rail 3 can be adjusted. After adjusting the position, the handwheel 222 can be rotated forward again to clamp the two locking blocks 211 on the guide rail 3. It can be seen that the limit device provided in the present application can achieve the effect of controlling the travel distance of the slider 4 by adjusting its own position on the guide rail 3.
[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0048] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A limiting device for limiting the position of a slider on a guide rail, characterized in that: The limiting device comprises: A moving mechanism, comprising a moving block capable of moving along the extension direction of the guide rail, the moving block being provided with a stop surface for limiting the position of the slider, and the moving block being further provided with a slide groove perpendicular to the extension direction of the guide rail; The locking mechanism comprises a first locking member slidably connected to the slide slot and a second locking member connected to the moving block and capable of driving the first locking member to clamp or release the guide rail.
2. The limiting device according to claim 1, characterized in that: The first locking member comprises two locking blocks that can slide along the extending direction of the slide slot, the two locking blocks are arranged at intervals on both sides of the guide rail, and the locking blocks are provided with threaded holes along the first direction; The second locking member includes two screw rods which are threadedly connected to the threaded hole and correspond one to one with the locking blocks. The screw rods can drive the locking blocks to slide along the extension direction of the slide groove to control the locking blocks to be clamped or released on the guide rail.
3. The limiting device according to claim 2, characterized in that: Two opposite protrusions are provided on the two locking blocks. When the locking blocks are clamped on the guide rail, the protrusions on the locking blocks abut against the side walls of the guide rail.
4. The limiting device according to claim 2, characterized in that: The second locking member also includes a hand wheel capable of driving the screw rod to rotate, and the hand wheel is connected to an end of the screw rod away from the threaded hole.
5. The limiting device according to claim 4, characterized in that: The slide groove passes through the moving block, and the locking mechanism further includes a limiting plate connected to the two opposite side walls of the moving block and covering the openings at both ends of the slide groove.
6. The limiting device according to claim 5, characterized in that: The limiting plate is provided with an opening, and the screw rod passes through the opening and is screwed to the threaded hole of the locking block.
7. The limiting device according to claim 2, characterized in that: The moving block is also provided with an installation groove connected to the slide groove, and the limiting device also includes a rolling mechanism located in the installation groove. The rolling mechanism is rollingly connected to the guide rail and can roll along the extension direction of the guide rail when the locking block is released from the guide rail.
8. The limiting device according to claim 7, characterized in that: The rolling mechanism comprises: There are two mounting frames arranged on opposite sides of the mounting slot perpendicular to the extending direction of the guide rail, and the mounting frames are provided with mounting holes; and The roller has two ends rotatably connected to the mounting holes of the two mounting frames, and the roller rolls against the upper surface of the guide rail.
9. The limiting device according to claim 8, characterized in that: The number of the rollers is plural and the rollers are connected to the mounting frame at intervals along the extending direction of the guide rail.
10. A guide rail assembly, comprising a guide rail, a slider and a limit device, wherein the slider is slidably connected to the guide rail, the limit devices are two in number and are unlockably connected to the guide rail, and the two limit devices are respectively arranged on opposite sides of the slider, characterized in that: The limiting device adopts the limiting device described in any one of claims 1-9.