Position-adjustable sliding assembly

Abstract

The position-adjustable sliding assembly comprises a bottom plate and a rail, a protruding sliding table is arranged on the rail, a sliding groove matched with the sliding table is formed in the bottom plate, and at least one set of adjustable sliding mechanism is arranged on the portion, on the side face of the sliding groove, of the bottom plate. The adjustable sliding mechanism comprises a second rotating shaft, an adjusting block, a third rotating shaft, a second rolling piece and an adjusting bolt, the second rotating shaft is installed on the bottom plate, one end of the adjusting block is hinged to the second rotating shaft, the other end of the adjusting block is provided with the third rotating shaft, the third rotating shaft is sleeved with the rotatable second rolling piece, and the adjusting bolt is installed in a screw hole of the bottom plate. One end of the adjusting bolt is movably connected with the adjusting block, and the adjusting block is provided with an elastic piece on the other side of the adjusting bolt; the adjusting block can drive the second rolling piece to be exposed out of the sliding groove face and make contact with the side face of the sliding table through the adjusting bolt. The gap between the bottom plate and the sliding table on the rail can be controlled, it is guaranteed that the gap is small enough, and it can be guaranteed that the bottom plate moves smoothly through rolling friction.

Description

Technical Field

[0001] This utility model pertains to auxiliary components for power tools, specifically relating to structural and performance improvements of the base plate of a rail saw, and particularly to an adjustable sliding assembly. Background Technology

[0002] A rail saw is primarily used for straight-line cutting and is a common power tool in the woodworking, construction, and metalworking industries. To use it, the material is placed on the workbench, the motor is started, and the saw head controls the saw blade to move along the rail, allowing for the cutting of various materials.

[0003] The structure of a rail saw mainly includes the following parts: a saw blade, responsible for cutting materials; a motor, usually installed inside the saw body, which drives the saw blade to rotate via gears or directly; a rail, used to guide the movement of the saw blade; an adjustment mechanism; safety devices to ensure operational safety; rail saws are usually equipped with safety locking devices, such as slide button switches; a battery or power supply to power the motor and other components; and auxiliary components, some high-end rail saws are also equipped with auxiliary vertical components and dovetail rails, used to achieve vertical cutting and improve cutting flexibility and accuracy.

[0004] In conventional rail saws, the rail and the base plate are in sliding friction, with the base plate in direct contact with the rail, or friction strips are added to the base plate to adjust the smoothness and gap. Sliding friction makes it difficult to simultaneously meet the two conditions of smooth sliding and small gap, thus affecting the cutting accuracy and performance.

[0005] As disclosed in Chinese Patent (Authorization Announcement No. CN 221754893 U), this technical solution discloses a track saw, including a handle, a housing, a grip, a battery, and a cutting section. The handle is arranged horizontally and perpendicularly to the housing, and the handle is generally rod-shaped. The housing has a display button near the end of the handle, and the display button faces the user. The grip is fixed to the housing and arranged vertically to the housing, and the grip is generally U-shaped. The battery is installed on the side of the housing and protrudes outward. The cutting section is installed on the side of the housing and is arranged opposite to the battery. The housing includes a first half-shell and a second half-shell. The first half-shell and the second half-shell have inwardly recessed placement grooves at the positions where they mate with the display button, and the display button is disposed in the placement grooves.

[0006] For example, the "A Track Saw Guide Rail Locking Adjustment Mechanism" disclosed in Chinese Patent (Authorization Announcement No. CN 221289725 U) includes a base plate for supporting the track saw body and a track that slides with the base plate. The upper surface of the track is provided with guide rails arranged along its length. The base plate is provided with at least one set of locking button assemblies. The locking button assemblies are used to adjust the fit clearance between the base plate and the guide rails. Each locking button assembly includes a tightening button, a return spring, and a steel ball. The outer wall of the tightening button has a gradually changing eccentric portion that extends along the circumference of the tightening button. The bottom of the tightening button has a blind hole. The return spring and the steel ball are sequentially embedded in the blind hole from top to bottom. The return spring always applies a downward pushing force to the steel ball. The cooperation of the return spring and the steel ball locks the tightening button. This mechanism adjusts the fit clearance between the base plate and the track through two locking button assemblies, improving the accuracy of the track saw for cutting straight products. It also features a simple structure and convenient operation.

[0007] The aforementioned track saw base plate and guide rail structure still uses the existing sliding friction method. Although the locking button assembly has some improvements, its structure is relatively complex. It uses an eccentric part to slide in contact with the side of the guide rail, resulting in severe wear and making it difficult to ensure the linear movement and cutting accuracy of the track saw. Utility Model Content

[0008] The purpose of this invention is to provide an adjustable sliding component to solve the problem that the base plate and guide rail in existing track saws cannot simultaneously meet the requirements of smooth sliding and small gap, which affects cutting accuracy and performance.

[0009] To achieve the purpose of this utility model, the following technical solution is adopted:

[0010] An adjustable sliding assembly includes a base plate and a track. A raised sliding platform is provided on the track, and a sliding groove that mates with the sliding platform is provided on the base plate. At least one adjustable sliding mechanism is provided on the side of the sliding groove on the base plate. The adjustable sliding mechanism includes a second rotating shaft, an adjusting block, a third rotating shaft, a second rolling element, and an adjusting bolt. The second rotating shaft is mounted on the base plate. One end of the adjusting block is hinged to the second rotating shaft, and the other end of the adjusting block is mounted on the third rotating shaft. A rotatable second rolling element is fitted onto the third rotating shaft. The adjusting bolt is installed in a screw hole in the base plate, and one end of the adjusting bolt is movably connected to the adjusting block. An elastic element is provided on the other side of the adjusting block where the adjusting bolt is installed. The adjusting bolt allows the adjusting block to drive the second rolling element to protrude from the sliding groove surface and contact the side of the sliding platform.

[0011] To further achieve the objectives of this utility model, the following technical solutions may also be adopted:

[0012] As described above, in the adjustable sliding assembly, an elastic element is provided on the other side of the adjusting block where the adjusting bolt is installed. One end of the elastic element is movably connected to the adjusting block, and the other end of the elastic element is fixedly in contact with the base plate.

[0013] In the adjustable sliding assembly described above, the elastic element is a spring or a sheet spring.

[0014] As described above, the adjustable sliding assembly has at least two sets of adjustable sliding mechanisms on one side of the slide groove.

[0015] As described above, in the adjustable sliding assembly, the slide groove is provided with a fixed sliding mechanism on the bottom plate on the other side opposite to the mounting of the adjustable sliding mechanism. The fixed sliding mechanism includes a first rotating shaft and a first rolling element. The first rotating shaft is mounted on the bottom plate, and the first rolling element is fitted on the first rotating shaft. The first rolling element protrudes from the slide groove and contacts the side of the slide table.

[0016] As described above, in the adjustable sliding assembly, at least two sets of the fixed sliding mechanism are provided on one side of the slide groove.

[0017] In the adjustable sliding assembly described above, the first rolling element and the second rolling element are bearings or rings.

[0018] As described above, in the adjustable sliding assembly, the first and second rolling elements are made of engineering plastics.

[0019] The advantages of this utility model are:

[0020] In existing technologies, conventional track saw base plates rely on sliding friction, with the base plate directly contacting the track, or friction strips are added to the base plate to adjust smoothness and clearance. Sliding friction makes it difficult to simultaneously satisfy both smooth sliding and small clearance.

[0021] In the adjustable sliding mechanism of this utility model, the second rotating shaft is mounted on the base plate, the adjusting block is mounted on the second rotating shaft, the third rotating shaft is mounted on the adjusting block, and the second bearing or ring is mounted on the third rotating shaft. The adjusting block can rotate around the second rotating shaft, and the second bearing or ring can rotate on its own or around the third rotating shaft. When the adjusting bolt is pressed against the adjusting block towards the slide groove, the second bearing or ring, the third rotating shaft, and the adjusting block rotate clockwise around the second rotating shaft, gradually pushing the second bearing or ring out of the slide groove surface and against the raised side of the slide table on the track. Furthermore, a spring or spring plate presses against the adjusting block, preventing the second bearing or ring from entering the slide groove in a free state, facilitating the installation of the base plate on the track.

[0022] In this fixed sliding mechanism, a rotating shaft is mounted on a base plate, and a bearing or ring is mounted on the rotating shaft. The bearing or ring itself can rotate or rotate around the rotating shaft. The outer diameter of the bearing or ring protrudes from the slide groove surface, allowing the bearing or ring to contact the side of the slide table, thereby achieving rolling friction movement between the base plate and the guide rail.

[0023] The adjustable sliding mechanism and fixed sliding mechanism of this utility model can be set in multiple sets on the base plate to better ensure the sliding stability of the base plate and the track, improve the use effect and ensure the cutting accuracy.

[0024] The adjustable sliding mechanism of this invention can be finely adjusted using adjusting bolts, allowing the bearings (either the second or first bearing) or the rings on both sides of the slide groove to fit snugly against the sides of the slide table. This controls the gap between the base plate slide groove and the track slide table, ensuring it is sufficiently small, while also ensuring smooth movement of the base plate through rolling friction. Furthermore, the bearings and rings are made of engineering plastics, resulting in minimal wear on the track and themselves. If the bearings and rings wear excessively, they can be replaced, reducing component costs and ensuring quality of use. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 yes Figure 1 The main view;

[0028] Figure 3 yes Figure 2 Enlarged view of part I in the middle;

[0029] Figure 4 yes Figure 1 The rear view of the base plate described in the text.

[0030] Figure label:

[0031] Base plate, 11-slide groove, 12-screw hole;

[0032] 2-Railway, 21-Slide table;

[0033] 3-Adjustable sliding mechanism, 31-Second rotating shaft, 32-Adjusting block, 33-Third rotating shaft, 34-Second rolling element, 35-Adjusting bolt, 36-Elastic element;

[0034] 4-Fixed sliding mechanism, 41-Rotating shaft one, 42-First rolling element. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0036] In the description of the embodiments of this utility model, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution. Example

[0037] like Figures 1-4 As shown, the adjustable sliding assembly disclosed in this embodiment includes a base plate 1 and a track 2. The track 2 is provided with a raised slide table 21, and the base plate 1 is provided with a slide groove 11 that cooperates with the slide table 21.

[0038] The structure of the base plate 1, the slide groove 11, the track 2, and the slide table 21 is existing technology and will not be described in detail here.

[0039] like Figure 1 , Figure 4 As shown, in this embodiment, at least two sets of adjustable sliding mechanisms 3 are provided on the side of the slide groove 11 on the base plate 1; the two sets of adjustable sliding mechanisms 3 are located on the same side of the slide groove 11 and are spaced apart at both ends of the base plate 1. To facilitate the use of the adjusting bolts 35 of the adjustable sliding mechanisms 3, both sets of adjustable sliding mechanisms 3 are located close to the side of the base plate 1.

[0040] See also Figure 4 As shown, the adjustable sliding mechanism 3 includes a second rotating shaft 31, an adjusting block 32, a third rotating shaft 33, a second rolling element 34, and an adjusting bolt 35. The second rotating shaft 31 is mounted on the base plate 1. One end of the adjusting block 32 is hinged to the second rotating shaft 31, and the other end of the adjusting block 32 is mounted on the third rotating shaft 33. The second rolling element 34 is mounted on the third rotating shaft 33. The adjusting bolt 35 is installed in the screw hole 12 of the base plate 1. One end of the adjusting bolt 35 is movably connected to the adjusting block 32. An elastic element 36 is provided on the other side of the adjusting block 32 where the adjusting bolt 35 is mounted.

[0041] By adjusting the bolt 35, the adjusting block 32 can drive the second rolling element 34 to protrude from the slide groove 11 and contact the side of the slide table 21.

[0042] Furthermore, in this embodiment, the adjustable sliding mechanism 3 has an elastic element 36 on the other side of the adjusting block 32 where the adjusting bolt 35 is installed. One end of the elastic element 36 is in movable contact with the adjusting block 32, and the other end is in fixed contact with the base plate 1. The elastic element 36 is a spring or a sheet spring.

[0043] The end of the adjusting bolt 35 and the adjusting block 32 can be connected by contact or by movement, and the adjusting bolt 35 can be used to push the adjusting block 32 to move.

[0044] The adjustable sliding mechanism 3 of this invention allows the adjusting block 32 to rotate around the second rotating shaft 31, while the second bearing or ring can rotate on its own or around the third rotating shaft 33. The adjusting bolt 35 presses against the adjusting block 32, pushing it towards the slide groove 11. The second bearing or ring, the third rotating shaft 33, and the adjusting block 32 rotate clockwise around the second rotating shaft 31, gradually pushing the second bearing or ring out of the slide groove 11 and against the side of the raised slide platform 21 on the track 2. Furthermore, a spring or spring plate presses against the adjusting block 32, preventing the second bearing or ring from freely entering the slide groove 11, facilitating the installation of the base plate 1 on the track 2.

[0045] See Figure 2 , Figure 3 , Figure 4 As shown, two sets of fixed sliding mechanisms 4 are provided on the base plate 1. The fixed sliding mechanism 4 and the adjustable sliding mechanism 3 are located on both sides of the slide groove 11, respectively. In this embodiment, the two sets of fixed sliding mechanisms 4 are located inside the base plate 1, and their installation positions can be opposite to or offset from the adjustable sliding mechanism.

[0046] The fixed sliding mechanism 4 includes a rotating shaft 41 and a first rolling element 42. The rotating shaft 41 is mounted on the base plate 1, and the first rolling element 42 is fitted on the rotating shaft 41. The first rolling element 42 protrudes from the slide groove 11 and contacts the side of the slide table 21.

[0047] like Figure 3 , Figure 4 As shown, in this embodiment, the first rolling element 42 and the second rolling element 34 are bearings or rings, both made of engineering plastics to reduce wear and component costs.

[0048] In the fixed sliding mechanism 4 of this utility model, the bearing or the ring itself can rotate, or rotate around the rotating shaft 41. The outer diameter of the bearing or the ring protrudes from the surface of the slide groove 11, so that the bearing or the ring contacts the side of the protruding slide table 21 on the track 2.

[0049] In the existing technology, conventional track 2 saw base plate 1 uses sliding friction, with base plate 1 in direct contact with track 2, or friction strips are added to base plate 1 to adjust smoothness and gap. Sliding friction makes it difficult to simultaneously meet the two conditions of smooth sliding and small gap.

[0050] The adjustable sliding mechanism 3 of this embodiment can be finely adjusted by adjusting bolt 35, so that the bearings or rings on both sides of the slide groove 11 fit against both sides of the slide table 21 on the track 2. Therefore, the gap between the slide groove 11 and the slide table 21 of the base plate 1 can be controlled to be small enough, and the smooth movement of the base plate 1 can be ensured through rolling friction. In addition, the bearings and rings are made of engineering plastics, which causes less wear on the track 2 and the bearings themselves; if the bearings and rings wear too much, they can be replaced, resulting in low component and usage costs.

[0051] In addition, multiple sets of adjustable sliding mechanism 3 and fixed sliding mechanism 4 can be set on the base plate 1 to ensure the stability of sliding between the base plate 1 and the track 2, improve the use effect and ensure cutting accuracy. Example

[0052] The difference between Embodiment 2 and Embodiment 1 is that only two sets of adjustable sliding mechanisms 3 can be provided on the base plate 1, while the fixed sliding mechanism 4 on the other side of the slide groove 11 is removed. That is, the gap between the slide groove 11 and one side of the slide table 21 is controlled, and rolling friction is used to move the base plate 1. Compared to Embodiment 1, Embodiment 2 will experience greater wear on the side of the slide groove 11 and slide table 21 where the adjustable sliding mechanism 3 is not provided, and the gap will be difficult to control. Therefore, the linear movement accuracy of the base plate 1 will be reduced.

[0053] Implementation Three:

[0054] The difference between Embodiment 3 and Embodiment 1 is that the fixed sliding mechanism 4 on one side of the slide groove 11 is replaced with an adjustable sliding mechanism, that is, both sides of the slide groove 11 are equipped with adjustable sliding mechanisms. At this time, the slide groove 11 and both sides of the slide table 21 have fixed friction, and the gap is controllable. Therefore, the usage effect of Embodiment 3 is similar to that of Embodiment 1.

[0055] In addition, the adjustable sliding mechanism has more components and a more complex structure, which increases the cost of Embodiment 3.

[0056] All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. An adjustable sliding assembly comprising a base plate and a track, the track being provided with a raised slide, the base plate being provided with a slide groove cooperating with the slide, characterized in that, At least one adjustable sliding mechanism is provided on the side of the slide groove on the base plate; the adjustable sliding mechanism includes a second rotating shaft, an adjusting block, a third rotating shaft, a second rolling element, and an adjusting bolt. The second rotating shaft is installed on the base plate, one end of the adjusting block is hinged to the second rotating shaft, the other end of the adjusting block is installed with the third rotating shaft, the second rolling element is mounted on the third rotating shaft, the adjusting bolt is installed in the screw hole of the base plate, one end of the adjusting bolt is movably connected to the adjusting block, and an elastic element is provided on the other side of the adjusting block where the adjusting bolt is installed; the adjusting bolt can cause the adjusting block to drive the second rolling element to protrude from the slide groove surface and contact the side of the slide table.

2. The adjustable slide assembly of claim 1, wherein, The adjusting block has an elastic element on the other side of the adjusting bolt. One end of the elastic element is movably connected to the adjusting block, and the other end of the elastic element is fixedly in contact with the base plate.

3. The adjustable slide assembly of claim 2, wherein, The elastic element is a spring or a sheet spring.

4. The adjustable slide assembly of claim 1, wherein, The adjustable sliding mechanism is provided in at least two sets on one side of the slide groove.

5. The adjustable desk assembly of claim 1, wherein, The slide groove has a fixed sliding mechanism on the bottom plate on the other side opposite to the installation of the adjustable sliding mechanism. The fixed sliding mechanism includes a rotating shaft and a first rolling element. The rotating shaft is installed on the bottom plate, and the first rolling element is fitted on the rotating shaft. The first rolling element protrudes from the slide groove and contacts the side of the slide table.

6. The adjustable slide assembly of claim 5, wherein, At least two sets of the fixed sliding mechanism are provided on one side of the slide groove.

7. The adjustable slide assembly of claim 5, wherein, The first and second rolling elements are bearings or rings.

8. The adjustable slide assembly of claim 7, wherein, The first and second rolling elements are made of engineering plastics.

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