Linear guide device and linear guide mechanism

Abstract

The utility model discloses a linear guide device and linear guide mechanism. Linear guide device contains linear guide mechanism, machine spare, negative pressure unit and exhaust pipeline. Linear guide mechanism contains guide piece, sliding piece and the sheltering piece of surrounding sliding piece. There is gap between the sheltering piece and the guide piece and does not contact each other. Machine spare forms and draws the hole. Machine spare is fixed with sliding piece and sheltering piece respectively, and machine spare moves relative to guide piece through sliding piece, and synchronous belt drives sheltering piece to move relative to guide piece. Machine spare, sheltering piece and sliding piece define the chamber together. Negative pressure unit is connected with the hole of drawing air through exhaust pipeline, and is used to make the chamber produce adsorption force, to form the negative pressure airflow between the gap, the chamber and the hole of drawing air, to make the pollutant falling in the chamber discharge the chamber through exhaust pipeline, avoid the pollutant accumulation in linear guide mechanism or spread to the working environment of linear guide device, and then can maintain the application environment of equipment high cleanliness.

Description

Technical Field

[0001] This utility model relates to a guiding device, and more particularly to a linear guiding device and a linear guiding mechanism. Background Technology

[0002] Existing linear guide devices often generate contaminants (such as dust) during operation due to the actuation of their moving elements (e.g., sliders and guide rails). These contaminants are dispersed inside the device, affecting overall operational stability and leading to reduced accuracy and lower product yield.

[0003] Therefore, the inventor believed that the above-mentioned defects could be improved. So he devoted himself to research and applied scientific principles, and finally proposed a utility model with a reasonable design that effectively improves the above-mentioned defects. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a linear guidance device and linear guidance mechanism to address the shortcomings of the prior art.

[0005] This utility model discloses a linear guiding device, wherein the linear guiding device includes: a linear guiding mechanism comprising: a guiding member; a sliding member movably disposed on the guiding member; and a shielding member surrounding the sliding member; the shielding member and the guiding member are separated by a gap and do not contact each other; a mechanism having at least one air extraction hole, the mechanism being disposed on one side of the linear guiding mechanism; the mechanism is fixed to the sliding member and the shielding member respectively, and the mechanism can move relative to the guiding member through the sliding member, and synchronously drive the shielding member relative to the guiding member. A guide member moves a shielding member; wherein the mechanism, the shielding member, and the sliding member collectively define a chamber, the chamber being connected only to at least one of the air extraction holes and the gap; and a negative pressure unit and at least one exhaust pipe, the negative pressure unit being connected to at least one of the air extraction holes via at least one of the exhaust pipes; wherein the negative pressure unit is used to generate an adsorption force in the chamber to form a negative pressure airflow between the gap, the chamber, and at least one of the air extraction holes, and the negative pressure airflow is used to discharge contaminants falling into the chamber through the exhaust pipes.

[0006] Optionally, the gap is between 0.4 mm and 0.6 mm.

[0007] Optionally, the guide member defines a moving direction, and the slider can move along the moving direction; the shielding member has two mounting slots corresponding to the guide member on opposite sides of the moving direction, a channel is formed on a bottom surface of the shielding member, and the two mounting slots are connected to each other through the channel.

[0008] Optionally, the gap includes a first gap and a second gap, the first gap being formed between the inner edge of each of the mounting slots and the guide member, and the second gap being formed between the inner edge of the channel and the guide member.

[0009] Optionally, the shapes of the two mounting slots and the channel respectively correspond to the outer contour of the guide member, so that the shielding member covers the sliding member and the guide member passes through the two mounting slots and the channel.

[0010] Optionally, the slider has a mounting portion along the moving direction, and the slider is slidably disposed on the guide via the mounting portion.

[0011] Optionally, an opening is formed on one top surface of the shielding member, one side of the sliding member is exposed on the top surface of the shielding member, and the one side of the sliding member and the top surface of the shielding member are respectively fixed to the machine component.

[0012] Optionally, the guide element is selected from one of a linear guide rail, a linear guide rod, and a screw.

[0013] This utility model also discloses a linear guiding device, wherein the linear guiding device includes: a linear guiding mechanism comprising: a guiding member; a sliding member movably disposed on the guiding member; and a shielding member surrounding the sliding member, wherein at least one air extraction hole is formed on one side of the shielding member; wherein the shielding member and the guiding member are separated by a gap and do not contact each other; and a mechanism disposed on one side of the linear guiding mechanism, the mechanism being fixed to the sliding member and the shielding member respectively, the mechanism being able to move relative to the guiding member through the sliding member and synchronously drive the shielding member. A movable shielding member relative to a guide member; wherein the mechanism, the shielding member, and the sliding member collectively define a chamber, the chamber being connected only to at least one of the air extraction holes and the gap; and a negative pressure unit and at least one exhaust pipe, the negative pressure unit being connected to at least one of the air extraction holes via at least one of the exhaust pipes; wherein the negative pressure unit is used to generate an adsorption force in the chamber to form a negative pressure airflow between the gap, the chamber, and at least one of the air extraction holes, and the negative pressure airflow is used to discharge contaminants falling into the chamber through the exhaust pipes.

[0014] This utility model also discloses a linear guide mechanism, wherein the linear guide mechanism includes: a guide member; a sliding member movably disposed on the guide member; and a shielding member fixed to one side of the sliding member, wherein at least one air extraction hole is formed on one side of the shielding member; the shielding member and the guide member are separated by a gap and do not contact each other, and the shielding member can move relative to the guide member through the sliding member; wherein the shielding member surrounds the sliding member to form a chamber, the chamber communicating only with at least one air extraction hole and the gap.

[0015] In summary, the linear guide device and linear guide mechanism disclosed in this utility model embodiment, through the design of "at least one of the air extraction holes" and "the chamber is only connected to at least one of the air extraction holes and the gap", enable contaminants (such as dust) that may be generated when the actuating element is in motion (e.g., the sliding member moves relative to the guide member) to be discharged from the chamber through the negative pressure airflow. This avoids the accumulation of contaminants in the linear guide mechanism or their diffusion into the working environment of the linear guide device, thereby maintaining a high-cleanliness application environment for the equipment and exhibiting good operational stability, accuracy, and product yield.

[0016] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, these descriptions and drawings are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model in any way. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the linear guidance device according to Embodiment 1 of this utility model.

[0018] Figure 2 for Figure 1 A schematic diagram of its breakdown.

[0019] Figure 3 for Figure 2 A schematic diagram of the linear guidance mechanism.

[0020] Figure 4 for Figure 1 Front view diagram.

[0021] Figure 5 for Figure 1 A cross-sectional view along section line VV.

[0022] Figure 6 for Figure 4 A cross-sectional view along section line VI-VI.

[0023] Figure 7This is a three-dimensional schematic diagram of the linear guidance device according to Embodiment 2 of this utility model.

[0024] Figure 8 for Figure 7 A three-dimensional schematic diagram of another example of a linear guidance mechanism.

[0025] Figure 9 This is a three-dimensional schematic diagram of the linear guidance device according to Embodiment 3 of this utility model.

[0026] Figure 10 for Figure 9 A schematic diagram of the decomposed linear guidance mechanism.

[0027] Figure 11 for Figure 9 A cross-sectional view along section line XI-XI. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of the "linear guidance device and linear guidance mechanism" disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, it should be stated in advance that the accompanying drawings of this utility model are for simple illustration only and are not depictions based on actual dimensions. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0029] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0030] It should be noted that existing linear guide devices often cover the linear guide mechanism (such as linear guide rails and linear bushings) with dustproof components. For example, the actuating elements (such as sliders and guide rails) of existing linear guide devices are covered with dustproof components such as elastic sheets or telescopic sleeves to prevent the contaminants generated by the actuating elements during operation (such as when the slider moves relative to the guide rail) from spreading to the working environment of the equipment.

[0031] However, when the actuating elements of existing linear guide devices are large, the amount of the aforementioned dustproof components also increases, which not only increases costs but also makes the overall structure more complex. From another perspective, the existing linear guide mechanisms using the aforementioned dustproof components are too large to be applied to precision equipment (such as semiconductors, optoelectronic detection, or medical equipment).

[0032] [Example 1]

[0033] Please see Figures 1 to 6 As shown, this is one embodiment of the present invention. Figure 1 As shown, this embodiment discloses a linear guide device 100, which includes a linear guide mechanism 1, a component 2 disposed on one side of the linear guide mechanism 1, at least one exhaust pipe 3 connected at one end to the component 2, and a negative pressure unit 4 (e.g., an air pump) connected to the other end of the exhaust pipe 3. It should be noted that the component 2 is a component in industrial equipment, but its type can be adjusted and varied according to the actual application field (e.g., machine tools, semiconductor and LCD manufacturing equipment, industrial robots, transportation systems, and medical and auxiliary equipment industries), and this utility model does not impose any limitations on it. Furthermore, the linear guide mechanism 1 and the component 2 are fixed to each other so that the linear guide device 100 can realize its function (e.g., linear reciprocating motion).

[0034] To facilitate understanding of this embodiment, the structure of each component in the linear guidance device 100 and their interrelationships will be described below. For example... Figures 1 to 3 As shown, the linear guide mechanism 1 includes a guide member 11, a slider 12 movably disposed on the guide member 11, and a shielding member 13 surrounding the slider 12. In this embodiment, the linear guide mechanism 1 is illustrated using a single slider 12 as an example, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the number of sliders 12 may be multiple, and the shielding member 13 may surround multiple sliders 12.

[0035] Specifically, the guide member 11 and the slider 12 are the actuating elements of the linear guide mechanism 1. The guide member 11 defines a movement direction D, and the slider 12 can move along the movement direction D. Further, as... Figure 3 As shown, the slider 12 has a mounting portion 121 formed along the moving direction D, and the slider 12 is slidably disposed on the guide member 11 through the mounting portion 121.

[0036] In this embodiment, the guide 11 is illustrated by example as a linear guide rail, and the slider 12 is a slider corresponding to the linear guide rail, but the present invention is not limited thereto. For example, in other embodiments of the present invention, the guide 11 may be selected from at least one of the linear guide rail (e.g., applied to a linear slide rail), a linear guide rod (e.g., applied to a linear bushing), and a screw (e.g., applied to a ball screw), and the slider 12 may be a slider, a bushing, or a nut, etc., corresponding to the type of guide 11.

[0037] Re-reference Figure 2 and Figure 3 As shown, the shielding member 13 has two mounting grooves 131 formed on opposite sides in the moving direction D, and a channel 132 connecting the two mounting grooves 131 is formed on one bottom surface of the shielding member 13. Specifically, the shapes of the two mounting grooves 131 and the channel 132 correspond to the outer contour of the guide member 11 (i.e., the linear guide rail), so that the shielding member 13 can cover the sliding member 12 and the guide member 11 can pass through the two mounting grooves 131 and the channel 132.

[0038] However, although the shielding member 13 in this embodiment is illustrated by forming two mounting slots 131 and the channel 132, the present invention is not limited thereto. For example, in some embodiments of the present invention, the design of the shielding member 13 is adjusted and varied according to different types of actuating elements, and the present invention is not limited thereto. For example, when the guide member 11 is the linear guide rod and the slider 12 is a bushing, the shielding member 13 may only form two mounting slots 131, so that the shielding member 13 covers the slider 12 (that is, the bushing) and the guide member 11 (that is, the linear guide rod) passes through the two mounting slots 131.

[0039] Furthermore, the shielding member 13 and the guide member 11 are separated by a gap G and do not contact each other, and the width of the gap G is between 0.4 mm and 0.6 mm. In this embodiment, as... Figure 4 and Figure 5As shown, the gap G includes a first gap G1 and a second gap G2. The first gap G1 is formed between the inner edge of each mounting groove 131 and the guide member 11, and the second gap G2 is formed between the inner edge of the channel 132 and the guide member 11. Furthermore, the first gap G1 and the second gap G2 have the same width in this embodiment, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the first gap G1 and the second gap G2 may have different widths depending on actual needs.

[0040] It should be noted that the re-parameter Figure 1 and Figure 2 As shown, in this embodiment, an opening 133 is formed on the top surface of the shielding member 13. One side of the sliding member 12 is exposed on the top surface of the shielding member 13. The one side of the sliding member 12 and the top surface of the shielding member 13 are respectively fixed to the mechanism 2, so that the linear guide mechanism 1 and the mechanism 2 are fixed to each other. However, this utility model is not limited to this. For example, in other embodiments of this utility model, the top surface of the shielding member 13 may not have the opening 133. The linear guide mechanism 1 is fixed to the shielding member 13 by the one side of the sliding member 12, and then fixed to the mechanism 2 by the top surface of the shielding member 13.

[0041] From another perspective, such as Figure 1 , Figure 2 and Figure 6 As shown, the mechanism 2 is fixed to the sliding member 12 and the shielding member 13 respectively. The mechanism 2 can move relative to the guide member 11 via the sliding member 12 and synchronously drive the shielding member 13 to move relative to the guide member 11. The mechanism 2 has at least one air extraction hole 21, and the mechanism 2, the sliding member 12, and the shielding member 13 together define the chamber S, which is connected only to at least one air extraction hole 21 and the gap G.

[0042] Furthermore, the negative pressure unit 4 is connected to at least one of the exhaust pipes 3 via at least one of the exhaust ports 21. It should be noted that the number of exhaust pipes 3 corresponds to the number of exhaust ports 21. In this embodiment, both the number of exhaust pipes 3 and the number of exhaust ports 21 are single, but they can be adjusted and varied according to actual needs, and this invention is not limited thereto. For example, in other embodiments not shown in this invention, the linear guide device 100 may also include multiple exhaust ports 21 and multiple exhaust pipes 3 respectively connected to the multiple exhaust ports 21.

[0043] The above describes the structure of each component in the linear guidance device 100 and their arrangement. Specifically, as follows... Figure 6 As shown, the negative pressure unit 4 is used to generate an adsorption force in the chamber S, thereby forming a negative pressure airflow between the gap G, the chamber S, and at least one of the exhaust ports 21. This negative pressure airflow allows contaminants falling into the chamber S to be discharged from the chamber S via the exhaust pipe 3. Furthermore, the negative pressure airflow can also draw contaminants falling around the gap G into the chamber S and discharge them from the chamber S via the exhaust pipe 3.

[0044] According to the above configuration, the linear guide device 100 provided in this embodiment, through the design that the chamber S is only connected to the gap G and at least one of the air extraction holes 21, allows contaminants (such as dust) that may be generated when its actuating element is in motion (e.g., the sliding member 12 moves along the guide member 11 in the moving direction D) to be discharged from the chamber S by the negative pressure airflow. This prevents the contaminants from accumulating in the linear guide mechanism 1 or spreading to the working environment of the linear guide device 100. Therefore, the linear guide device 100 can maintain a high-cleanliness application environment and has good operational stability, accuracy, and product yield.

[0045] It is worth mentioning that, compared with existing dustproof components such as elastic sheets or telescopic sleeves, the linear guide device 100 can achieve a dustproof effect without completely covering its actuating elements (i.e., the guide 11 and the sliding element 12) through the design of the shielding member 13, thus achieving low-cost benefits.

[0046] In other words, the linear guidance device 100 provided in this embodiment simplifies the construction of dustproof components through the design of the shielding member 13, allowing for flexible and adaptable application in space-constrained and small precision equipment. This can replace the existing linear guidance device design that uses elastic sheets or telescopic sleeves for dustproofing. Based on this characteristic, the linear guidance mechanism 1 in this embodiment can further be applied to precision equipment (such as semiconductor, optoelectronic detection, or medical equipment).

[0047] Furthermore, in space-constrained equipment, the linear guidance mechanism can employ larger guide elements to meet higher operational requirements (e.g., stability) when applied to the aforementioned precision equipment.

[0048] [Example 2]

[0049] Please see Figure 7 and Figure 8As shown, this is Embodiment 2 of the present invention, which discloses a linear guidance device 100'. Since this embodiment is similar to Embodiment 1 described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiment 1 are explained below: In this embodiment, as Figure 7 As shown, the linear guide device 100' includes the linear guide mechanism 1, the component 2 disposed on one side of the linear guide mechanism 1, at least one exhaust pipe 3 connected to the linear guide mechanism 1 at one end, and a negative pressure unit 4 connected to the other end of the exhaust pipe 3, and the component 2 does not have the air extraction hole 21 formed thereon.

[0050] In this embodiment, the linear guide mechanism 1 has at least one air extraction hole 134 formed on one side of the shielding member 13. It should be further noted that the number of at least one exhaust pipe 3 and the number of at least one air extraction hole 21 are both single, but they can be adjusted and varied according to actual needs, and this invention is not limited thereto. For example, in other embodiments not shown in this invention, the linear guide device 100' may also include multiple air extraction holes 134 and multiple exhaust pipes 3 respectively connected to multiple air extraction holes 21.

[0051] Furthermore, the component 2, the shielding component 13, and the sliding component 12 collectively define the chamber S, which is connected only to at least one of the extraction holes 134 and the gap G. Specifically, the negative pressure unit 4 is used to generate an adsorption force in the chamber S to form a negative pressure airflow between the gap G, the chamber S, and at least one of the extraction holes 134, and the negative pressure airflow can be used to discharge contaminants falling into the chamber S through the exhaust pipe 3.

[0052] It is worth mentioning that although the linear guide device 100' in this embodiment is described in terms of the combination of the aforementioned linear guide mechanism 1, component 2, at least one exhaust pipe 3, and negative pressure unit 4, this utility model is not limited thereto. In practical applications, the linear guide mechanism 1 can also be used independently (e.g., implemented, manufactured, sold, etc.), and it can further be fixed (e.g., locked) with other types of components 2 and used in conjunction with the exhaust pipe 3 and negative pressure unit 4 to achieve a dustproof effect.

[0053] For example, such as Figure 8As shown, the top surface of the shielding member 13 does not have the opening 133 and provides one side of the sliding member 12 to be fixed thereon. According to the above configuration, the shielding member 13 surrounds the sliding member 12 to form the chamber S, which is only connected to at least one of the air extraction holes 134 and the gap G, so that the linear guide device 100' can be directly fixed (e.g., locked) to other components with the shielding member 13 and used in conjunction with other exhaust pipes and negative pressure units.

[0054] [Example 3]

[0055] Please see Figures 9 to 11 As shown, this is Embodiment 3 of the present invention, which discloses a linear guiding device 100''. Since this embodiment is similar to Embodiments 1 and 2 above, the similarities between the multiple embodiments will not be repeated. The main differences between this embodiment and Embodiments 1 and 2 above are explained as follows: In this embodiment, the linear guide device 100'' includes the linear guide mechanism 1, the component 2 disposed on one side of the linear guide mechanism 1, the exhaust pipe 3 connected at one end to the component 2, and the negative pressure unit 4 connected to the other end of the exhaust pipe 3. The guide member 11 is a linear guide rod, and the shielding member 13 does not form the channel 132. That is, in this embodiment, the shielding member 13 only forms two mounting slots 131 so that the shielding member 13 surrounds the sliding member 12 and the guide member 11 (that is, the linear guide rod) passes through the two mounting slots 131.

[0056] Specifically, such as Figure 11 As shown, the negative pressure unit 4 is used to generate the adsorption force in the chamber S, so as to form the negative pressure airflow between the gap G, the chamber S and at least one of the air extraction holes 21, and the negative pressure airflow can be used to discharge the pollutants falling into the chamber S through the exhaust pipe 3.

[0057] It should be noted that, as Figures 1 to 11 As shown, according to the above embodiments one to three, the linear guide mechanism 1 is used in combination with different actuating elements (that is, the guide 11 and the sliding element 12) through the design of the shielding member 13, thereby proving that the linear guide mechanism 1 can be applied to different devices and can effectively play a dustproof role.

[0058] It is worth mentioning that at least one of the exhaust pipes 3 of the linear guiding devices 100, 100', and 100'' in the above three embodiments can also be connected to each other as needed, so that the multiple linear guiding devices 100, 100', and 100'' only need to use the same negative pressure unit 4 to generate an adsorption force on the chambers S of the multiple linear guiding devices 100, 100', and 100'' respectively, so as to discharge the pollutants falling into the chambers S.

[0059] [Technical Effects of the Embodiments of this Utility Model]

[0060] In summary, the linear guide device and linear guide mechanism disclosed in this utility model embodiment, through the design of "at least one of the air extraction holes" and "the chamber is only connected to at least one of the air extraction holes and the gap", enable contaminants (such as dust) that may be generated when the actuating element is in motion (e.g., the sliding member moves relative to the guide member) to be discharged from the chamber through the negative pressure airflow. This avoids the accumulation of contaminants in the linear guide mechanism or their diffusion into the working environment of the linear guide device, thereby maintaining a high-cleanliness application environment for the equipment and exhibiting good operational stability, accuracy, and product yield.

[0061] Furthermore, compared to existing dustproof components such as elastic sheets or telescopic sleeves, the linear guide device, through the design of the shielding component, enables the linear guide mechanism to achieve a dustproof effect without completely covering its actuating elements with the aforementioned dustproof components (i.e., elastic sheets or telescopic sleeves), thus achieving cost-effectiveness.

[0062] From another perspective, the linear guidance device disclosed in this embodiment of the present invention can further simplify the structure of the dustproof components by employing the aforementioned shielding member, allowing for flexible and adaptable application in space-constrained and small precision equipment. This can replace the design of existing linear guidance devices that use elastic sheets or telescopic sleeves for dustproofing. Based on this characteristic, the linear guidance mechanism disclosed in this embodiment of the present invention can further be applied to precision equipment (such as semiconductor, optoelectronic detection, or medical equipment).

[0063] Furthermore, in space-constrained equipment, the linear guidance mechanism can employ larger guide elements to meet higher operational requirements (e.g., stability) when applied to the aforementioned precision equipment.

[0064] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the patent scope of the present utility model. Therefore, all equivalent technical changes made based on the contents of the present utility model specification and drawings are included in the patent scope of the present utility model.

Claims

1. A linear guidance device, characterized in that, The linear guidance device includes: A linear guidance mechanism, comprising: One guide component; A sliding member is movably disposed on the guide member; and A shielding element surrounds the sliding element; the shielding element and the guide element are separated by a gap and do not contact each other; A component having at least one vent hole is disposed on one side of the linear guide mechanism; the component is fixed to the sliding member and the shielding member respectively, and the component can move relative to the guide member via the sliding member, and synchronously drive the shielding member to move relative to the guide member; wherein the component, the shielding member, and the sliding member together define a chamber, the chamber communicating only with at least one vent hole and the gap; and A negative pressure unit and at least one exhaust pipe, the negative pressure unit being connected to at least one of the exhaust pipes; wherein the negative pressure unit is used to generate an adsorption force in the chamber to form a negative pressure airflow between the gap, the chamber and at least one of the exhaust pipes, and the negative pressure airflow is used to discharge contaminants falling into the chamber through the exhaust pipes.

2. The linear guidance device according to claim 1, characterized in that, The gap is between 0.4 mm and 0.6 mm.

3. The linear guidance device according to claim 1, characterized in that, The guide member defines a direction of movement, and the slider can move along the direction of movement; the shielding member has two mounting slots corresponding to the guide member on opposite sides of the direction of movement, a channel is formed on one bottom surface of the shielding member, and the two mounting slots are connected to each other through the channel.

4. The linear guidance device according to claim 3, characterized in that, The gap includes a first gap and a second gap, the first gap being formed between the inner edge of each of the mounting slots and the guide member, and the second gap being formed between the inner edge of the channel and the guide member.

5. The linear guidance device according to claim 3, characterized in that, The shapes of the two mounting slots and the channel respectively correspond to the outer contour of the guide member, so that the shielding member covers the sliding member and the guide member passes through the two mounting slots and the channel.

6. The linear guidance device according to claim 3, characterized in that, The slider has a mounting portion formed along the moving direction, and the slider is slidably disposed on the guide via the mounting portion.

7. The linear guidance device according to claim 1, characterized in that, An opening is formed on one top surface of the shielding member, one side of the sliding member is exposed to the top surface of the shielding member, and the one side of the sliding member and the top surface of the shielding member are respectively fixed to the machine component.

8. The linear guidance device according to claim 1, characterized in that, The guide element is selected from one of a linear guide rail, a linear guide rod, and a screw.

9. A linear guidance device, characterized in that, The linear guidance device includes: A linear guidance mechanism, comprising: One guide component; A sliding member is movably disposed on the guide member; and A shielding member surrounds the sliding member, and at least one air extraction hole is formed on one side of the shielding member; wherein the shielding member and the guide member are separated by a gap and do not contact each other; A component is disposed on one side of the linear guide mechanism. The component is fixed to both the sliding member and the shielding member. The component can move relative to the guide member via the sliding member and simultaneously drive the shielding member to move relative to the guide member. The component, the shielding member, and the sliding member together define a chamber, which communicates only with at least one of the air extraction holes and the gap. A negative pressure unit and at least one exhaust pipe, the negative pressure unit being connected to at least one of the exhaust pipes; wherein the negative pressure unit is used to generate an adsorption force in the chamber to form a negative pressure airflow between the gap, the chamber and at least one of the exhaust pipes, and the negative pressure airflow is used to discharge contaminants falling into the chamber through the exhaust pipes.

10. A linear guidance mechanism, characterized in that, The linear guidance mechanism includes: One guide component; A sliding member, movably disposed on the guide member; and A shielding member is fixed to one side of the sliding member, and at least one air extraction hole is formed on one side of the shielding member; the shielding member and the guide member are separated by a gap and do not contact each other, and the shielding member can move relative to the guide member through the sliding member; wherein the shielding member surrounds the sliding member to form a chamber, and the chamber is connected only to at least one of the air extraction holes and the gap.

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