Slide block with position capable of being finely adjusted
By using a worm gear and spline shaft design, the problem of the slider's inability to be finely adjusted during precision assembly was solved, achieving precise positioning and stability of the slider, and improving adjustment efficiency and device durability.
Patent Information
- Application Number
- CN202422845671.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Traditional slider designs make it difficult to achieve high-precision alignment and fine-tuning between components during precision assembly and machining, especially in scenarios requiring extremely high precision and repeatability, where the slider cannot be further adjusted in position.
The design employs a worm gear and worm shaft combination structure, allowing for precise adjustment of the slider by manually controlling the worm's rotation via a knob. It also utilizes the threaded engagement of a splined shaft and a lead screw, combined with push-pull and snap-fit components, to achieve rapid slider docking and self-locking. A damper is added to prevent component collisions caused by excessive sliding speed.
It achieves precise positioning and stability of the slider, improves the convenience and efficiency of adjustment, ensures that the slider can automatically lock its position after fine adjustment, prevents displacement caused by external vibration, and extends the service life of the device.
Smart Images
Figure CN223578740U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of precision machinery, especially to a slider capable of fine-tuning position. BACKGROUND
[0002] In the field of mechanical engineering, slider and rail systems are widely used in various automated equipment and manufacturing tools for precise motion control and positioning. Traditional slider designs usually rely on servo motors or other power devices to push the slider along the rail to a predetermined position. However, in some applications, especially those requiring extremely high precision and repeatability, a slider that can only reach a general position is not enough.
[0003] In the prior art, the slider is usually fixed on a lead screw and moves linearly along the guide rail as the lead screw rotates. This design limits the fine-tuning ability of the slider because once the slider reaches a certain pitch position of the lead screw, it cannot be further adjusted. This is a significant problem in precision assembly and machining processes because it can affect the alignment and fitting accuracy between components. SUMMARY
[0004] To solve the above-mentioned problems of the prior art, the utility model provides a slider capable of fine-tuning position.
[0005] The technical scheme is as follows: a slider capable of fine positioning, comprising a slide rail, a screw rod and a slider, the slide rail is a mounting carrier of the slider, the screw rod is rotatably arranged in a sliding groove of the slide rail, the slider is slidably connected to the slide rail, the slider and the screw rod are threadedly connected, one end of the slide rail is provided with a motor, an output shaft of the motor is connected with the screw rod, the motor can threadedly drive the slider to be roughly adjusted on the slide rail through the screw rod; further comprising: a mounting frame, which is mounted on one side of the slide rail away from the motor, one end of the screw rod away from the motor is rotatably arranged through the mounting frame, a spline groove is formed in one end of the screw rod close to the mounting frame, a mounting plate is fixedly connected to an outer wall of the mounting frame away from the screw rod, a shaft sleeve is rotatably arranged on an inner wall of the mounting frame away from the screw rod, a worm wheel is fixedly connected to the shaft sleeve, a worm is rotatably arranged through one side of the mounting frame, the worm wheel and the worm are threadedly connected, a knob is arranged on one end of the mounting frame away from the worm, a spline shaft is slidably arranged through the shaft sleeve, the spline shaft is threadedly connected with the spline groove in the screw rod, a push-pull piece is arranged on the outer wall of the mounting frame, the push-pull piece is used to push and pull the spline shaft in the shaft sleeve, so that the spline shaft can be connected to the spline groove in the screw rod, the knob is twisted to drive the worm, the worm threadedly drives the worm wheel to rotate, the spline shaft drives the screw rod to rotate through the shaft sleeve, the screw rod can be further rotated to fine adjust the position of the slider, after the adjustment is completed, the spline shaft and the screw rod are self-locked through the thread action between the worm wheel and the worm, so that the slider can be stably fine adjusted.
[0006] Further, the push-pull piece comprises a sliding frame and a guide rod, the guide rod is fixedly connected to the outer wall of the mounting frame away from the screw rod, the sliding frame is slidably arranged on the outer wall of the mounting frame through the guide rod, the sliding frame is rotatably connected with the spline shaft, the sliding frame can conveniently operate the spline shaft, so that the spline shaft can be conveniently connected to or separated from the screw rod.
[0007] Further, the push-pull piece comprises a sliding frame and a guide rod, the guide rod is fixedly connected to the outer wall of the mounting frame away from the screw rod, the sliding frame is slidably arranged on the outer wall of the mounting frame through the guide rod, the sliding frame is rotatably connected with the spline shaft, the sliding frame can conveniently operate the spline shaft, so that the spline shaft can be conveniently connected to or separated from the screw rod.
[0008] Further illustrate, the buckle piece includes wedge and spring two, the wedge is installed on the mounting plate through the slide rod on it, the wedge is used for limiting the slide frame, the wedge is inclined surface away from the slide frame one end face, the wedge and the mounting plate are provided with spring two, the spring two is pressed down the wedge under the elastic force, so that the wedge no longer limits the slide frame, so that the slide frame can drive the spline shaft to butt joint on the lead screw under the action of the spring one, the position of the slider is adjusted through the lead screw subsequently.
[0009] Further illustrate, the slide rod of the wedge penetrates the mounting plate, the lower end of the slide rod of the wedge is provided with a pressing handle, the pressing handle is used for conveniently operating the wedge.
[0010] Further illustrate, it further includes a damper, the outer wall of the mounting frame is provided with the damper, one end of the damper is connected to the outer wall of the mounting frame, the other end of the damper is connected to the slide frame, the damper is used to slow down the sliding speed of the slide frame on the guide rod, avoid the spline shaft and the lead screw from colliding due to the slide frame sliding too fast, reduce the service life of the cooperation between the components, improve the durability of the slider.
[0011] The utility model has the following advantages: 1, the utility model discloses the cooperation of worm and gear, can realize the fine adjustment of slider position, worm and gear has the self -locking function, ensure the stability of slider after fine adjustment, be suitable for the application occasion that needs precision positioning, and the position of slider is adjusted by knob manual control worm rotation, combine the design of push -pull piece, and the user can easily realize spline shaft and the quick interface of lead screw or separation, improve the convenience and efficiency of adjustment.
[0012] 2, the utility model utilizes the thread cooperation characteristics between worm and gear, when completing adjustment, the system can automatically lock the current position, and utilizes buckle piece to lock the slide frame, prevents the slider displacement caused by external vibration and other factors, guarantees the reliability of work.
[0013] 3, the utility model adds damper to slow down the moving speed of the slide frame, effectively avoid the component collision damage that fast sliding can cause, prolong the service life of slider structure. ACCURACY
[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0015] Figure 2 It is the schematic diagram of the cooperation of shaft sleeve, worm, worm, knob and spline shaft of the utility model.
[0016] Figure 3 It is the connection relation diagram of mounting frame, spline shaft, slide frame and guide rod of the utility model.
[0017] Figure 4 It is a three-dimensional structure schematic view of the screw rod and the spline groove of the utility model.
[0018] Among them, the above-mentioned drawing includes the following sign: 1, slide rail, 2, screw rod, 21, spline groove, 3, sliding block, 5, motor, 6, mounting frame, 61, mounting plate, 7, shaft sleeve, 8, worm wheel, 9, worm, 10, knob, 11, spline shaft, 12, sliding frame, 13, guide rod, 14, spring one, 15, wedge block, 16, spring two, 17, press-down handle, 18, damper. DETAILED DESCRIPTION
[0019] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a preferred or alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with other embodiments.
[0020] Embodiment: a sliding block that can fine-tune position, such as Figures 1-4As shown, including the slide rail 1, screw rod 2 and slide block 3, the slide rail 1 is the assembly carrier of the slide block 3, the screw rod 2 is rotatably mounted in the slide groove of the slide rail 1, the slide block 3 is slidably connected to the slide rail 1, the slide block 3 and the screw rod 2 are threadedly engaged, one end of the slide rail 1 is provided with a motor 5, the output shaft of the motor 5 is connected with the screw rod 2, the motor 5 can threadedly drive the slide block 3 to be adjusted on the slide rail 1 through the screw rod 2; further comprising: a mounting frame 6 mounted on the slide rail 1 away from the motor 5, the end of the screw rod 2 away from the motor 5 rotatably penetrates the mounting frame 6, the end of the screw rod 2 close to the mounting frame 6 is internally provided with a spline groove 21; a mounting plate 61 fixedly connected to the outer wall of the mounting frame 6 away from the screw rod 2; a shaft sleeve 7 rotatably mounted on the inner wall of the mounting frame 6 away from the screw rod 2; a worm wheel 8 fixedly connected to the shaft sleeve 7; a worm gear 9 rotatably mounted and penetrating one side of the mounting frame 6, the worm wheel 8 and the worm gear 9 are threadedly adapted, the end of the worm gear 9 penetrating the outer wall of the mounting frame 6 is provided with a knob 10; a spline shaft 11 slidably arranged and penetrating the shaft sleeve 7, the shaft sleeve 7 and the spline shaft 11 inside it are adapted, the spline shaft 11 and the spline groove 21 in the screw rod 2 are adapted; a push-pull piece, the outer wall of the mounting frame 6 is provided with a push-pull piece, the push-pull piece is used to push and pull the spline shaft 11 in the shaft sleeve 7, so that the spline shaft 11 can be butt jointed into the spline groove 21 on the screw rod 2, the knob 10 is twisted to drive the worm gear 9, so that the worm gear 9 threadedly drives the shaft sleeve 7 in the worm wheel 8 to rotate, so that the shaft sleeve 7 drives the screw rod 2 to rotate through the spline shaft 11, so that the screw rod 2 can be further rotated and finely adjusted the position of the slide block 3, after the adjustment is completed, the self-locking of the spline shaft 11 and the screw rod 2 after the adjustment is realized through the thread action between the worm wheel 8 and the worm gear 9, so that the slide block 3 can be stably finely adjusted; the push-pull piece comprises a sliding frame 12 and a guide rod 13, the guide rod 13 is symmetrically fixedly connected to the outer wall of the mounting frame 6 away from the screw rod 2, the sliding frame 12 is slidably mounted on the outside of the mounting frame 6 through the guide rod 13, the sliding frame 12 and the spline shaft 11 are rotatably connected, the sliding frame 12 conveniently operates the spline shaft 11, so that the spline shaft 11 can be conveniently butt jointed or separated from the screw rod 2.
[0021] As shown in Figure 3 It also includes spring 14 and buckle piece, the first spring is arranged between the sliding frame 12 and the mounting frame 6, the buckle piece is arranged on the mounting plate 61, the buckle piece is used to lock the sliding frame 12 against the elastic force of the spring 14, after the locking of the sliding frame 12 by the buckle piece is released, the sliding frame 12 pushes the spline shaft 11 to contact the screw rod 2 under the action of the spring 14, if the spline shaft 11 cannot be correctly butt jointed into the spline groove 21 of the screw rod 2, the spline shaft 11 is aligned with the spline groove 21 in the screw rod 2 under the fine adjustment of the worm wheel 8 and the worm gear 9 by twisting the knob 10, the spline shaft 11 can be quickly inserted and butt jointed into the screw rod 2 under the action of the spring 14, so as to improve the efficiency of the spline shaft 11 and the screw rod 2.
[0022] As shown in Figure 2 And Figure 3As shown, the buckle includes a wedge block 15 and spring two 16, the wedge block 15 is slidingly mounted on the mounting plate 61 through the slide rod on it, the wedge block 15 is used for limiting locking the sliding frame 12, the end face of the wedge block 15 away from the sliding frame 12 is an inclined surface, the wedge block 15 and the mounting plate 61 are provided with spring two 16, the wedge block 15 is pressed down to overcome the elastic force of spring two 16, so that the wedge block 15 no longer limits the sliding frame 12, and the sliding frame 12 can drive the spline shaft 11 to be connected on the lead screw 2 under the action of spring one 14, so as to facilitate subsequent fine adjustment of the position of the sliding block 3 through the lead screw 2; the slide rod of the wedge block 15 penetrates the mounting plate 61, and the lower end of the slide rod of the wedge block 15 is provided with a pressing handle 17, which is used for conveniently operating the wedge block 15.
[0023] As shown in Figure 2 and Figure 3 It also includes a damper 18, the outer wall of the mounting frame 6 is provided with the damper 18, one end of the damper 18 is connected to the outer wall of the mounting frame 6, the other end of the damper 18 is connected to the sliding frame 12, the damper 18 is used to slow down the sliding speed of the sliding frame 12 on the guide rod 13, to avoid the sliding frame 12 from sliding too fast to cause the spline shaft 11 and the lead screw 2 to collide, to reduce the service life of mutual cooperation between parts, and to improve the durability of the sliding block 3.
[0024] In operation, firstly, the motor 5 is started, and drives the screw rod 2 to rotate through the output shaft connected with the screw rod 2. Since the sliding block 3 is in threaded cooperation with the screw rod 2, when the screw rod 2 rotates, the sliding block 3 moves along the slide rail 1 to realize large-range position adjustment. When fine adjustment of the sliding block 3 is needed, the user first closes the motor 5, and then operates the wedge-shaped block 15 by pressing the handle 17 to overcome the elastic force of the second spring 16, and release the locking of the sliding frame 12. After the locking is released, the sliding frame 12 is quickly pushed to the direction of the screw rod 2 by the first spring 14, until the sliding frame 12 and the screw rod 2 contact each other. At this time, if the spline groove 21 in the screw rod 2 is just connected with the spline shaft 11, the spline shaft 11 is directly inserted into the spline groove 21 in the screw rod 2. If the spline groove 21 in the screw rod 2 cannot be connected with the spline shaft 11, the knob 10 is rotated to drive the worm 9 to rotate, and then the worm gear 8 and the shaft sleeve 7 are driven to rotate by the meshing transmission of the worm gear 8 and the worm 9. Since the shaft sleeve 7 is matched with the spline shaft 11, the rotation of the shaft sleeve 7 directly drives the spline shaft 11 to rotate and align with the spline groove 21. Under the action of the first spring 14, the spline shaft 11 is directly inserted into the spline groove 21 in the screw rod 2 under the elastic force. Once the spline shaft 11 is successfully connected with the screw rod 2, the user adjusts the position of the sliding block 3 by rotating the knob 10 installed at one end of the worm 9. The rotation of the knob 10 drives the worm 9 to rotate, and then the worm gear 8 and the shaft sleeve 7 are driven to rotate by the meshing transmission of the worm gear 8 and the worm 9. The shaft sleeve 7 drives the screw rod 2 to rotate through the spline shaft 11, so that the screw rod 2 performs more subtle rotary motion, and finally the sliding block 3 is precisely positioned on the slide rail 1. Since the damper 18 is arranged between the sliding frame 12 and the mounting frame 6, the damper 18 can slow down the sliding speed of the sliding frame 12 on the guide rod 13, prevent hard collision between the spline shaft 11 and the screw rod 2 due to too fast sliding, and protect the service life of each component, so as to ensure long-term stable operation of the device. At the same time, the spline shaft 11 and the screw rod 2 can be automatically locked after adjustment by the threaded action between the worm gear 8 and the worm 9, so that the sliding block 3 can be stably kept at the set fine adjustment position and will not be displaced due to external vibration and other factors.
[0025] It should be understood that the embodiments are only used for illustrating the present application and not for limiting the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various modifications or modifications to the present application, and these equivalent forms also fall within the scope defined by the claims of the present application.
Claims
1. A slider capable of fine positioning, comprising a slide rail (1), a screw rod (2) and a slider (3), the screw rod (2) being rotatably installed inside a sliding groove of the slide rail (1), the slider (3) being slidably connected to the slide rail (1), the slider (3) and the screw rod (2) being threadedly engaged, one end of the slide rail (1) being provided with a motor (5), an output shaft of the motor (5) being connected to the screw rod (2); characterized in that Further comprising: a mounting frame (6) being mounted on the slide rail (1) away from the motor (5), one end of the screw rod (2) away from the motor (5) being rotatably penetrated through the mounting frame (6), an internal spline groove (21) being formed in one end of the screw rod (2) close to the mounting frame (6); a mounting plate (61) being fixedly connected to an outer wall of the mounting frame (6) away from the screw rod (2); a shaft sleeve (7) being rotatably installed on an inner wall of the mounting frame (6) away from the screw rod (2); a worm wheel (8) being fixedly connected to the shaft sleeve (7); a worm gear (9) being rotatably installed and penetrated through one side of the mounting frame (6), the worm wheel (8) and the worm gear (9) being threadedly engaged, a knob (10) being installed on one end of the worm gear (9) penetrated through the outer wall of the mounting frame (6); a spline shaft (11) being slidably arranged and penetrated through the shaft sleeve (7), the shaft sleeve (7) and the spline shaft (11) being threadedly engaged, the spline shaft (11) and the spline groove (21) in the screw rod (2) being threadedly engaged; a push-pull member, the outer wall of the mounting frame (6) being provided with the push-pull member, the push-pull member being used for pushing and pulling the spline shaft (11) in the shaft sleeve (7).
2. A slider with fine position adjustment according to claim 1, characterized in that The push-pull member comprises a sliding frame (12) and a guide rod (13), the guide rod (13) being symmetrically fixedly connected to the outer wall of the mounting frame (6) away from the screw rod (2), the sliding frame (12) being slidably installed on the outside of the mounting frame (6) through the guide rod (13), the sliding frame (12) being rotatably connected to the spline shaft (11).
3. A slider with fine position adjustment according to claim 2, characterized in that Further comprising a first spring (14) and a buckle member, the first spring (14) being arranged between the sliding frame (12) and the mounting frame (6), the buckle member being arranged on the mounting plate (61), the buckle member being used for locking the sliding frame (12) against the elastic force of the first spring (14).
4. A slider with fine position adjustment according to claim 3, characterized in that The buckle member comprises a wedge block (15) and a second spring (16), the wedge block (15) being slidably installed on the mounting plate (61) through a slide rod thereon, the wedge block (15) being used for limiting and locking the sliding frame (12), one end face of the wedge block (15) away from the sliding frame (12) being an inclined face, the second spring (16) being arranged between the wedge block (15) and the mounting plate (61).
5. A positionable slider according to claim 4, wherein, The slide rod of the wedge block (15) is penetrated through the mounting plate (61), a press-down handle (17) being installed on the lower end of the slide rod of the wedge block (15).
6. A slider with fine position adjustment according to claim 5, characterized in that Further comprising a damper (18), the outer wall of the mounting frame (6) is provided with a damper (18), one end of the damper (18) is connected to the outer wall of the mounting frame (6), the other end of the damper (18) is connected to the sliding frame (12), and the damper (18) is used to slow down the sliding speed of the sliding frame (12) on the guide rod (13).