Equal-load roller-type linear slider

Abstract

The utility model relates to a sliding block and discloses an equal-load roller type linear sliding block which comprises a sliding block body, a backflow element and an end cover, the backflow element and the end cover are both installed on the sliding block body and form a first backflow channel and a second backflow channel, and the first backflow channel and the second backflow channel are arranged on the two sides of the sliding block body. The first backflow channel and the second backflow channel on the same side do not intersect in space, and the first backflow channel is arranged above the second backflow channel; the first backflow channel and the second backflow channel close to one side of the linear track are a first inner channel and a second inner channel respectively, and on the same section, the included angle between the central axis of the first inner channel and the horizontal plane and the included angle between the central axis of the second inner channel and the horizontal plane are alpha which is equal to 45 degrees. The first backflow channel and the second backflow channel on the same side of the backflow element are not staggered in space, and the linear sliding block does not need to be manufactured to be too thick. The basic rated loads of the linear sliding blocks in the radial direction, the reverse radial direction and the horizontal direction are the same.

Description

Technical Field

[0001] This utility model relates to sliders, and more particularly to linear sliders of the equal load roller type. Background Technology

[0002] A linear slider is a mechanical device primarily used to guide and support linear motion. In CNC machine tool machining of metal parts, the cutting tool needs to cut along a precise straight path. The linear slider, through its high-precision guide rail and slider structure, restricts the direction of tool movement, allowing the error of the tool during machining to be controlled within a very small range. In the lifting system of industrial racks, linear sliders are installed on the lifting rails of the racks, supporting the weight of the racks and the goods stored on them.

[0003] In existing linear sliders, the two return channels on the same side are spatially staggered, resulting in a larger overall thickness and volume of the slider body, significantly increasing its cost. For example, CN113187814B discloses a slider with smooth roller sliding and its assembly method. Furthermore, due to the spatial staggering, the return element is generally located at the lower end of the slider body, causing the linear slider to experience uneven loads in different directions. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a linear slider of equal load roller type.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] An equal-load roller type linear slider includes a slider body, a return element and an end cap. The return element and the end cap are both mounted on the slider body and form a first return channel and a second return channel. The slider body has a first return channel and a second return channel on both sides. The first return channel and the second return channel on the same side do not intersect in space. The first return channel is located above the second return channel.

[0007] The first and second return channels, located near the linear track, are respectively the first and second inner channels. On the same cross section, the angle between the central axis of the first and second inner channels and the horizontal plane is α, where α = 45°.

[0008] Preferably, on the same cross-section, the first inner channel and the second inner channel are arranged in a figure-eight shape, with the larger opening between the first inner channel and the second inner channel facing inward.

[0009] Preferably, the slider body is provided with a groove for the track to pass through. The groove is "I" shaped and the top cavity of the groove is the upper groove cavity. The first inner channel and the second inner channel both face the upper groove cavity and communicate with it.

[0010] As a preferred embodiment, the feature is that: a return element is installed on both sides of the slider body, the return element includes a baffle plate, a return pipe and a baffle bar, the return pipe and the baffle bar are installed between two baffle plates, the outer wall of the baffle bar and the return pipe and the slider body form a first inner channel, the channel on the return pipe is a pipe channel, and the first inner channel and the pipe channel form a first return channel.

[0011] Preferably, the two ends of the baffle are integrally formed on the baffle plates at their respective ends. The outer end face of one baffle plate is a baffle plane, and the outer end face of the other baffle plate is integrally formed with an outwardly protruding first protrusion. The first protrusion is provided with a first arc-shaped groove. One end of the first arc-shaped groove is connected to the first inner channel, and the other end of the first arc-shaped groove is connected to the pipe channel.

[0012] Preferably, the return pipe is detachably installed on the baffle plate. One end of the return pipe is integrally formed with an outwardly protruding second protrusion. The second protrusion is provided with a second arc-shaped groove. One end of the second arc-shaped groove is connected to the first inner channel, and the other end of the second arc-shaped groove is connected to the pipe channel.

[0013] Preferably, each side of the end cap has two grooves, and the first protrusion and the second protrusion are respectively engaged with the grooves of the end cap at the corresponding ends.

[0014] Preferably, the bottom of the groove is an arc-shaped surface, and the first arc-shaped groove and the second arc-shaped groove are respectively adapted to the groove at the corresponding end to form an arc-shaped channel.

[0015] Preferably, the side of the groove is provided with a slot, and both ends of the return pipe are provided with a locking block, which engages with the slot.

[0016] This utility model, by adopting the above technical solution, has significant technical effects:

[0017] The first and second return channels on the same side of this return element do not intersect in space, which means that the linear slider does not need to be manufactured too thick, resulting in high space utilization and low cost.

[0018] Meanwhile, the angle between the first inner channel of the first return channel and the second inner channel of the second return channel and the horizontal plane is 45°, so that the basic rated load of this linear slider is the same in the radial, anti-radial and horizontal directions.

[0019] The internal space design of the linear slider and the rollers with long contact surfaces make the linear slider stronger in terms of load capacity. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the present invention.

[0021] Figure 2This is a schematic diagram of the end-face cross-sectional structure.

[0022] Figure 3 This is a schematic diagram of the reflux element.

[0023] Figure 4 This is a schematic diagram of the working structure of the baffle and the baffle strip.

[0024] Figure 5 This is a schematic diagram of the end cap structure.

[0025] Figure 6 This is a schematic diagram of the reflux pipe.

[0026] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0027] 1—Slider body, 11—Slide groove, 111—Upper slide groove cavity

[0028] 2—Return element, 21—First inner channel, 22—Second inner channel, 23—Baffle, 24—Return pipe, 25—Baffle bar, 231—Baffle plane, 232—First protrusion, 233—First arc groove, 241—Pipe channel, 242—Second protrusion, 243—Second arc groove, 244—Clamping block

[0029] 3—End cap, 31—Groove, 32—Slot

[0030] 100—First Return Channel

[0031] 200—Second Return Channel Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described in detail with reference to the embodiments.

[0033] Example 1

[0034] A linear slider of equal load roller type includes a slider body 1, a return element 2, and an end cap 3. The return element 2 and the end cap 3 are both mounted on the slider body 1, forming a first return channel 100 and a second return channel 200. The end cap 3 is fastened to the slider body 1 with screws. The return element 2 is installed inside the slider body 1, and its two ends are respectively engaged with the corresponding end caps 3. The slider body 1 has a first return channel 100 and a second return channel 200 on both sides. The first and second return channels 100 and 200 are not interconnected. A number of rollers are installed in both the first and second return channels 100 and 200. The linear slider moves by the rollers rolling on a track. The first return channel 100 and the second return channel 200 on the same side do not intersect in space, and the first return channel 100 is located above the second return channel 200.

[0035] The first return channel 100 and the second return channel 200, located near the linear track, are respectively the first inner channel 21 and the second inner channel 22. On the same cross section, as shown... Figure 2 As shown, the angle between the central axis of the first inner channel 21 and the central axis of the second inner channel 22 and the horizontal plane is α, where α = 45°.

[0036] On the same cross-section, the first inner channel 21 and the second inner channel 22 are in a figure-eight shape. The layout of the first inner channel 21 and the second inner channel 22 is an inverted figure-eight shape. The larger opening end between the first inner channel 21 and the second inner channel 22 faces inward, and the smaller opening end between the first inner channel 21 and the second inner channel 22 faces outward. Figure 2 As shown.

[0037] Both sides of the slider body 1 are equipped with return elements 2, and several rollers circulate within the return elements 2. The return elements 2 include baffles 23, return pipes 24, and baffles 25. The return pipes 24 and baffles 25 are installed between two baffles 23. The baffles 23 are installed on the end caps 3 by snap-fitting. The outer walls of the baffles 25, the return pipes 24, and the slider body 1 form a first inner channel 21. The baffles 25 are used to limit the rollers and prevent them from disengaging from the first inner channel 21 when rolling. The channel on the return pipe 24 is a pipe channel 241. The first inner channel 21 and the pipe channel 241 form a first return channel 100. The pipe channel 241 is located outside the first inner channel 21.

[0038] Both ends of the baffle 25 are integrally formed on the baffle plates 23 at their respective ends. The outer end face of one baffle plate 23 is a baffle plane 231, and the outer end face of the other baffle plate 23 is integrally formed with an outwardly protruding first protrusion 232. The first protrusion 232 is provided with a first arc-shaped groove 233. One end of the first arc-shaped groove 233 is connected to the first inner channel 21, and the other end of the first arc-shaped groove 233 is connected to the pipe channel 241. The baffle plate 23 and the baffle 25 are integrally formed, which improves the assembly efficiency of the return element 2. One end face of the baffle plate 23 is a plane, and the other end face is a protrusion. This structure facilitates the installation of the return pipe 24 between the two baffle plates 23.

[0039] The return pipe 24 is detachably installed on the baffle plate 23, which facilitates the processing of the return pipe 24 and allows the return pipe 24 to be smoothly assembled onto the slider body 1 and the two end caps 3. One end of the return pipe 24 has an integrally formed second protrusion 242 that protrudes outward. The second protrusion 242 is provided with a second arc-shaped groove 243. One end of the second arc-shaped groove 243 is connected to the first inner channel 21, and the other end of the second arc-shaped groove 243 is connected to the pipe channel 241.

[0040] The end cap 3 has two grooves 31 on both sides. The first protrusion 232 and the second protrusion 242 are respectively engaged with the grooves 31 of the end cap 3 at the corresponding ends. The reflux element 2 and the end cap 3 are easy to assemble, and the assembly between the reflux element 2 and the end cap 3 is reliable and has good stability.

[0041] The bottom of the groove 31 is an arc-shaped surface. The first arc-shaped groove 233 and the second arc-shaped groove 243 are respectively adapted to the groove 31 at the corresponding end to form an arc-shaped channel.

[0042] Example 2

[0043] Example 2 is basically the same as Example 1, except that the slider body 1 is provided with a groove 11 for the track to pass through. The groove 11 is an "I"-shaped groove, and the top cavity of the groove 11 is the upper groove cavity 111. The first inner channel 21 and the second inner channel 22 both face the upper groove cavity 111 and communicate with it. The rollers of the first return channel 100 and the second return channel 200 on the linear slider roll on the upper end of the slide rail, which facilitates the machining of the rolling surface of the guide rail and makes the linear slider stronger in terms of load capacity.

[0044] Example 3

[0045] Example 3 is basically the same as Example 1, except that the side of the groove 31 is provided with a slot 32, and both ends of the return pipe 24 are provided with a locking block 244. The locking block 244 is engaged with the slot 32. Since the baffle plate 23 is relatively thin, the return pipe 24 will rotate radially after engaging with it. The return pipe 24 engages with the slot 32 of the end cover 3 through the locking block 244, and the return pipe 24 is axially limited on the end cover 3, so that the pipe channel 241 can communicate with the groove 31.

Claims

1. A linear slider of equal load roller type, comprising a slider body (1), a return element (2), and an end cap (3), wherein the return element (2) and the end cap (3) are both mounted on the slider body (1) and form a first return channel (100) and a second return channel (200), and the slider body (1) is provided with a first return channel (100) and a second return channel (200) on both sides, characterized in that: The first return channel (100) and the second return channel (200) on the same side do not intersect in space, and the first return channel (100) is located above the second return channel (200); The first return channel (100) and the second return channel (200) near the linear track are the first inner channel (21) and the second inner channel (22), respectively. On the same cross section, the angle between the central axis of the first inner channel (21) and the central axis of the second inner channel (22) and the horizontal plane is α, where α = 45°.

2. The linear slider of the equal-load roller type according to claim 1, characterized in that: On the same cross section, the first inner channel (21) and the second inner channel (22) are in the shape of an octagon, with the large opening between the first inner channel (21) and the second inner channel (22) facing inward.

3. The linear slider of the equal-load roller type according to claim 1, characterized in that: The slider body (1) is provided with a slide groove (11) for the track to pass through. The slide groove (11) is an "I" shaped slide groove. The top cavity of the slide groove (11) is the upper slide groove cavity (111). The first inner channel (21) and the second inner channel (22) both face the upper slide groove cavity (111) and are connected to it.

4. The linear slider of the equal-load roller type according to any one of claims 1-3, characterized in that: The slider body (1) is equipped with return elements (2) on both sides. The return elements (2) include baffles (23), return pipes (24) and baffles (25). The return pipes (24) and baffles (25) are installed between the two baffles (23). The outer wall of the baffles (25) and the return pipes (24) and the slider body (1) form a first inner channel (21). The channel on the return pipes (24) is a pipe channel (241). The first inner channel (21) and the pipe channel (241) form a first return channel (100).

5. The linear slider of the equal-load roller type according to claim 4, characterized in that: The baffle (25) is integrally formed on the baffle (23) at both ends. The outer end face of one baffle (23) is the baffle plane (231), and the outer end face of the other baffle (23) is integrally formed with an outwardly protruding first protrusion (232). The first protrusion (232) is provided with a first arc groove (233). One end of the first arc groove (233) is connected to the first inner channel (21), and the other end of the first arc groove (233) is connected to the pipe channel (241).

6. The linear slider of the equal-load roller type according to claim 5, characterized in that: The return pipe (24) is detachably installed on the baffle plate (23). One end of the return pipe (24) is integrally formed with an outwardly protruding second protrusion (242). The second protrusion (242) is provided with a second arc-shaped groove (243). One end of the second arc-shaped groove (243) is connected to the first inner channel (21), and the other end of the second arc-shaped groove (243) is connected to the pipe channel (241).

7. The linear slider of the equal-load roller type according to claim 6, characterized in that: The end cap (3) has two grooves (31) on both sides. The first protrusion (232) and the second protrusion (242) are respectively engaged with the grooves (31) of the end cap (3) at the corresponding ends.

8. The linear slider of the equal load roller type according to claim 7, characterized in that: The bottom of the groove (31) is an arc-shaped surface. The first arc-shaped groove (233) and the second arc-shaped groove (243) are respectively adapted to the groove (31) at the corresponding end and form an arc-shaped channel.

9. The linear slider of the equal-load roller type according to claim 7, characterized in that: The side of the groove (31) is provided with a slot (32), and both ends of the return pipe (24) are provided with a block (244), which engages with the slot (32).

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