Closed positive pressure dustproof linear module

Abstract

According to the closed positive-pressure dustproof linear module, an outer shell is composed of a base, an upper baffle, a lower baffle and a cover plate, a sliding plate is driven by a motor to move in the module, and telescopic dustproof cloth is connected between the end of the sliding plate and the upper baffle and between the end of the sliding plate and the lower baffle. The base, the upper baffle, the lower baffle, the cover plate, the sliding plate and the dustproof cloth can form a relatively closed space all the time, external dust is prevented from entering the space, in addition, the sliding plate is internally provided with an air path connector and an air path communicated with an inner cavity of the module, the external dust can be further prevented from entering the module by filling high-pressure air into the module, and the service life of the module is prolonged. Therefore, the influence of dust on the transmission precision of the internal moving component is avoided, the moving precision of the linear module is improved, and the service life of the linear module is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of linear module equipment, in particular to a closed positive pressure dust-proof linear module. Background Technique

[0002] A linear module, also known as a linear module, a Cartesian robot, a linear slide, etc., is an automated upgrade unit following linear guides, linear motion modules, and ball screw linear drive mechanisms. It can achieve linear and curvilinear motion of the load through the combination of each unit, making the automation of light loads more flexible and positioning more accurate. It has the advantages of fast single-body movement speed, high repeat positioning accuracy, light body weight, small space occupied by the equipment, and long service life. It is widely used in equipment such as measurement, laser welding, laser cutting, glue coating machines, spraying machines, and drilling machines.

[0003] To ensure the accuracy of movement, existing linear modules generally install dust-proof components at the position of moving parts to prevent external dust from entering the module interior and avoid affecting the precise transmission of internal transmission components. However, the dust-proof performance of existing dust-proof components is limited, and they can only block and isolate the entry of some dust, and they will still be affected by the entry of dust during use. Summary of the Invention

[0004] The purpose of the utility model is to provide a closed positive pressure dust-proof linear module. On the basis of installing a dust-proof cloth on the slide plate, high-pressure gas is filled into the inner cavity of the module through an air circuit to further prevent the influence of dust entry, and the problems in the prior art are solved.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: a closed positive-pressure dust-proof linear module, which includes a base. An upper baffle is installed at one end of the base, and a lower baffle is installed at the other end of the base. A cover plate is installed between the upper baffle and the lower baffle, and there is a gap between the cover plate and the base. At both ends of the base, a motor seat and a bearing seat are respectively installed. A driving motor is arranged in the motor seat, and a lead screw is installed between the output shaft of the driving motor and the bearing seat. In the base, there is also a slide rail arranged along the length direction. A slide plate that can move relatively is installed between the base and the cover plate. The slide plate is provided with a slider that cooperates with the slide rail and a nut that cooperates with the lead screw. Telescopic dust-proof cloths are connected between the end of the slide plate and the upper baffle and the lower baffle respectively, and the dust-proof cloths cooperate with the gap between the cover plate and the base. The base, the upper baffle, the lower baffle, the cover plate, the slide plate and the dust-proof cloth form a relatively closed space. When the driving motor starts to drive the slide plate to move between the cover plate and the base, the dust-proof cloth can always block the gap between the cover plate and the base. An air path joint is installed on the slide plate, and an air path connected to the air path joint is arranged in the slide plate, and the air path is connected to the cavity between the dust-proof cloth, the cover plate and the base. On both sides of the base in the length direction, there are first card slots that cooperate with the dust-proof cloth, and the first card slots are located between the slide rail and the side wall of the base. On both sides of the cover plate in the length direction, there are second card slots that cooperate with the dust-proof cloth, and the dust-proof cloth is located between the first card slots and the second card slots. Limit blocks are arranged on both sides of the slide plate, and the limit blocks extend out between the cover plate and the base. Two slide rails arranged side by side are arranged in the base, and the bottom of the slide plate is provided with a first slider, a second slider, a third slider and a fourth slider that respectively cooperate with the two slide rails. An oil path joint is installed on the slide plate, and a first oil path connected to the oil path joint is arranged in the slide plate. A second oil path, a third oil path, a fourth oil path and a fifth oil path connected to the first oil path are opened in the slide plate. The outlet end of the second oil path is installed with a three-way valve, and the two outlets of the three-way valve are respectively connected to the lubricating oil paths of the third slider and the fourth slider through oil pipes. The third oil path is connected to the lubricating oil path of the first slider through an oil pipe. The fourth oil path is connected to the lubricating oil path of the second slider through an oil pipe. The fifth oil path is connected to the lubricating oil path of the nut through an oil pipe. Weight-reducing grooves are opened on both sides of the base in the length direction of the interior of the base, and insertion slots are opened on both sides of the base in the length direction of the exterior. A first anti-collision block that can contact the slide plate is installed on the motor seat, and a second anti-collision block that can contact the slide plate is installed on the bearing seat. T-shaped blocks are arranged at both ends of the dust-proof cloth in the length direction, and T-shaped grooves that cooperate with the T-shaped blocks are opened on the upper baffle, the lower baffle and the slide plate. When the T-shaped blocks are inserted into the T-shaped grooves, the dust-proof cloth is located between the base and the cover plate. The cover plate is a transparent plate.

[0006] The positive effects of the present utility model are as follows: A closed positive-pressure dust-proof linear module described in the present utility model consists of a base, an upper baffle, a lower baffle, and a cover plate to form an external housing. Inside, a motor drives a slide plate to move within the module, and telescopic dust-proof cloths are connected between the ends of the slide plate and the upper baffle and the lower baffle. When the slide plate moves, a relatively enclosed space can always be formed by the base, the upper baffle, the lower baffle, the cover plate, the slide plate, and the dust-proof cloths, preventing the entry of external dust. Additionally, an air circuit joint and an air circuit connected to the inner cavity of the module are installed inside the slide plate. By filling high-pressure gas into the module interior, it can further prevent the entry of external dust, thereby avoiding the influence of dust on the transmission accuracy of the internal moving components, improving the accuracy of the linear module movement, and extending the service life of the linear module. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is the three-dimensional structural schematic diagram of the present utility model;

[0008] Figure 2 is the side view of the present utility model;

[0009] Figure 3 is the structural schematic diagram of the present utility model after removing the cover plate;

[0010] Figure 4 is Figure 3 the enlarged view of the A-A cross-sectional view in;

[0011] Figure 5 is the structural schematic diagram of the present utility model after removing the upper baffle;

[0012] Figure 6 is the structural schematic diagram of the air circuit and oil circuit opened inside the slide plate;

[0013] Figure 7 is the structural schematic diagram of T-shaped blocks arranged at both ends of the dust-proof cloth;

[0014] Figure 8 is Figure 7 the partial enlarged view of I in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] A closed positive-pressure dust-proof linear module described in the present utility model, as Figures 1-4 shown, includes a base 1. An upper baffle 2 is installed at one end of the base 1, a lower baffle 3 is installed at the other end of the base 1, a cover plate 4 is installed between the upper baffle 2 and the lower baffle 3, and there is a gap between the cover plate 4 and the base 1.

[0016] At both ends inside the base 1, a motor base 5 and a bearing base 6 are respectively installed. The motor base 5 is close to one side of the upper baffle 2, and the bearing base 6 is close to one side of the lower baffle 3. A driving motor 7 is provided inside the motor base 5, and a lead screw 8 is installed between the output shaft of the driving motor 7 and the bearing base 6. A slide rail 9 arranged along the length direction is also provided inside the base 1. A slide plate 10 capable of relative movement is installed between the base 1 and the cover plate 4. The slide plate 10 serves as the moving component of the module. A slider matching with the slide rail 9 and a nut 11 matching with the lead screw 8 are provided on the slide plate 10. When the driving motor 7 is started, it can drive the slide plate 10 to move inside the module.

[0017] To achieve the necessary dust-proof performance, telescopic dust-proof cloths 12 are connected between the ends of the slide plate 10 and the upper baffle 2 and the lower baffle 3 respectively. The dust-proof cloths 12 match with the gaps between the cover plate 4 and the base 1. The base 1, the upper baffle 2, the lower baffle 3, the cover plate 4, the slide plate 10 and the dust-proof cloths 12 form a relatively enclosed space. When the driving motor 7 is started to drive the slide plate 10 to move between the cover plate 4 and the base 1, the dust-proof cloths 12 can always block the gap between the cover plate 4 and the base 1, playing the corresponding role of isolating dust.

[0018] The dust-proof curtain of the traditional linear module is generally set at the upper position, linked with the moving parts to cover the upper part of the module. The overall area is large and the dust-proof performance is poor. For the linear module described in the present utility model, the dust-proof cloth 12 is located at the side position. The upper part of the linear module is covered by the cover plate 4, leaving only a small space at both sides, and good sealing can be achieved through the dust-proof cloth 12. And as the slide plate 10 moves, the dust-proof cloth 12 can always seal and block the gap between the cover plate 4 and the base 1, thereby effectively preventing dust from entering and ensuring the transmission accuracy and normal use of the linear module.

[0019] To further prevent external dust from entering the inside of the module, make the inside of the module form a positive pressure environment, form a pressure difference with the external environment, and then prevent external dust from entering the module. An air path joint 13 is installed on the slide plate 10, and an air path 14 communicating with the air path joint 13 is provided inside the slide plate 10. The air path 14 communicates with the cavity between the dust-proof cloth 12, the cover plate 4 and the base 1. The air path joint 13 can be connected to an external high-pressure air source to continuously fill high-pressure gas into the inside of the module to form a positive pressure environment and prevent external dust from entering.

[0020] Furthermore, to facilitate the installation of the dust-proof cloth 12 between the base 1 and the cover plate 4, as Figure 5As shown, on both sides of the base 1 in the length direction, there are first card slots 15 that cooperate with the dust-proof cloth 12. The first card slots 15 are located between the slide rail 9 and the side wall of the base 1. On both sides of the cover plate 4 in the length direction, there are second card slots 16 that cooperate with the dust-proof cloth 12. The dust-proof cloth 12 is located between the first card slots 15 and the second card slots 16. The settings of the first card slots 15 and the second card slots 16 can also provide necessary guidance for the expansion and contraction of the dust-proof cloth 12.

[0021] Furthermore, on both sides of the slide plate 10, there are limit blocks 17. The limit blocks 17 extend out between the cover plate 4 and the base 1. Among them, the extended limit blocks 17 can be connected to the moving parts on other devices, making the linear module serve as a power driving mechanism to achieve precise movement of the moving parts under control. The limit blocks 17 can also be used as a guiding mechanism for the movement of the slide plate 10 to achieve smooth movement of the slide plate 10 inside the module.

[0022] Furthermore, in order to achieve corresponding lubrication for the movement of the slide plate 10 on the slide rail 9, as Figure 6 shown, there are two slide rails 9 arranged side by side inside the base 1. At the bottom of the slide plate 10, there are a first slider 18, a second slider 19, a third slider 20, and a fourth slider 21 that respectively cooperate with the two slide rails 9. An oil circuit joint 22 is installed on the slide plate 10. Inside the slide plate 10, there is a first oil circuit 23 that communicates with the oil circuit joint 22. In the slide plate 10, there are a second oil circuit 24, a third oil circuit 25, a fourth oil circuit 26, and a fifth oil circuit 27 that communicate with the first oil circuit 23. Among them, at the outlet end of the second oil circuit 24, a three-way valve 28 is installed. The two outlets of the three-way valve 28 are respectively connected to the lubricating oil circuits of the third slider 20 and the fourth slider 21 through oil pipes. The third oil circuit 25 is connected to the lubricating oil circuit of the first slider 18 through an oil pipe. The fourth oil circuit 26 is connected to the lubricating oil circuit of the second slider 19 through an oil pipe. The fifth oil circuit 27 is connected to the lubricating oil circuit of the lead nut 11 through an oil pipe. Among them, the oil circuit joint 22 can be externally connected to a lubrication system to introduce lubricating oil into each oil circuit, respectively realizing oil injection lubrication for the lead nut 11 and the four sliders.

[0023] Furthermore, on both sides of the interior of the base 1 in the length direction, there are weight reduction grooves 29. The settings of the weight reduction grooves 29 can ensure the strength of the base 1, reduce the manufacturing cost of the base 1, and also play an effective role in heat dissipation. For the convenience of installing the overall module, on both sides of the exterior of the base 1 in the length direction, there are insertion slots 30.

[0024] Further, to prevent the skateboard 10 from making hard collisions with the motor base 5 or the bearing block 6 during movement, a first anti-collision block 31 that can contact the skateboard 10 is installed on the motor base 5, and a second anti-collision block 32 that can contact the skateboard 10 is installed on the bearing block 6. The first anti-collision block 31 and the second anti-collision block 32 can play an effective buffering role, reduce collision wear, and can extend the service life of the skateboard 10.

[0025] Further, to facilitate the positioning and installation of the dust-proof cloth 12 on the linear module, as Figure 7 and Figure 8 shown, T-shaped blocks 33 are provided at both ends in the length direction of the dust-proof cloth 12. T-shaped grooves 34 that cooperate with the T-shaped blocks 33 are formed on the upper baffle 2, the lower baffle 3, and the skateboard 10. When the T-shaped blocks 33 are inserted into the T-shaped grooves 34, the dust-proof cloth 12 is located between the base 1 and the cover plate 4. After the T-shaped grooves 34 are inserted into the T-shaped grooves 34, the cover plate 4 is buckled, and the positioning installation, disassembly, and replacement of the dust-proof cloth 12 can be achieved, so that both ends of the dust-proof cloth 12 are respectively fixed between the upper baffle 2 and the skateboard 10, and between the lower baffle 3 and the skateboard 10. The above structure enables the dust-proof cloth 12 to move together with the skateboard 10 even if the dust-proof cloth 12 itself has no elasticity, realizing the sealing on both sides of the linear module. The formation of the T-shaped grooves 34 will not interfere with the oil circuits and air circuits inside the skateboard 10.

[0026] Further, to facilitate observing the operation of each component inside the linear module and whether the accumulation of internal oil sludge affects normal use, the cover plate 4 is a transparent plate, and the components inside the linear module can be observed in real time without disassembling the cover plate 4 to ensure the normal use of the linear module.

[0027] The technical solution of the present utility model is not limited within the scope of the embodiments described in the present utility model. The technical content not described in detail in the present utility model is well-known technology.

Claims

1. A closed positive pressure dustproof linear module, characterized in that: The invention comprises a base (1), an upper baffle (2) is installed at one end of the base (1), a lower baffle (3) is installed at the other end of the base (1), a cover plate (4) is installed between the upper baffle (2) and the lower baffle (3), a gap is left between the cover plate (4) and the base (1), a motor seat (5) and a bearing seat (6) are installed at two ends of the base (1), a driving motor (7) is installed in the motor seat (5), a screw rod (8) is installed between the output shaft of the driving motor (7) and the bearing seat (6), a slide rail (9) arranged along the length direction is also provided in the base (1), a slide plate (10) capable of relative movement is installed between the base (1) and the cover plate (4), a slider matched with the slide rail (9) and a screw nut (11) matched with the screw rod (8) are provided on the slide plate (10), and the slide plate (10) is provided with a slider matched with the slide rail (9) and a screw nut (11) matched with the screw rod (8). A retractable dustproof cloth (12) is connected between the ends of the cover plate (4) and the upper baffle plate (2) and the lower baffle plate (3); the dustproof cloth (12) cooperates with the gap between the cover plate (4) and the base (1); the base (1), the upper baffle plate (2), the lower baffle plate (3), the cover plate (4), the slide plate (10) and the dustproof cloth (12) form a relatively closed space; when the drive motor (7) is started to drive the slide plate (10) to move between the cover plate (4) and the base (1), the dustproof cloth (12) can always block the gap between the cover plate (4) and the base (1); an air path connector (13) is installed on the slide plate (10); an air path (14) connected to the air path connector (13) is provided in the slide plate (10); the air path (14) is connected to the cavity between the dustproof cloth (12), the cover plate (4) and the base (1).

2. According to claim 1, a closed positive pressure dustproof linear module is characterized in that: Both sides of the base (1) in the length direction are provided with first card slots (15) that match the dustproof cloth (12), and the first card slots (15) are located between the slide rail (9) and the side wall of the base (1). Both sides of the cover plate (4) in the length direction are provided with second card slots (16) that match the dustproof cloth (12), and the dustproof cloth (12) is located between the first card slot (15) and the second card slot (16).

3. According to claim 1, a closed positive pressure dustproof linear module is characterized in that: Limit blocks (17) are provided on both sides of the slide plate (10), and the limit blocks (17) extend out between the cover plate (4) and the base (1).

4. The closed positive pressure dustproof linear module according to claim 1, characterized in that: The base (1) is provided with two slide rails (9) arranged side by side, and the bottom of the slide plate (10) is provided with a first slide block (18), a second slide block (19), a third slide block (20) and a fourth slide block (21) respectively matched with the two slide rails (9). An oil circuit joint (22) is installed on the slide plate (10), and a first oil circuit (23) connected to the oil circuit joint (22) is provided in the slide plate (10), and a second oil circuit (24) and a third oil circuit (21) connected to the first oil circuit (23) are provided in the slide plate (10). 25), a fourth oil circuit (26) and a fifth oil circuit (27), wherein a three-way valve (28) is installed at the outlet end of the second oil circuit (24), and the two outlets of the three-way valve (28) are respectively connected to the lubricating oil circuits of the third slider (20) and the fourth slider (21) through oil pipes, the third oil circuit (25) is connected to the lubricating oil circuit of the first slider (18) through the oil pipe, the fourth oil circuit (26) is connected to the lubricating oil circuit of the second slider (19) through the oil pipe, and the fifth oil circuit (27) is connected to the lubricating oil circuit of the nut (11) through the oil pipe.

5. The closed positive pressure dustproof linear module according to claim 1, characterized in that: Both sides of the base (1) in the inner length direction are provided with weight-reducing grooves (29), and both sides of the base (1) in the outer length direction are provided with insertion grooves (30).

6. The closed positive pressure dustproof linear module according to claim 1, characterized in that: A first anti-collision block (31) capable of contacting the slide plate (10) is mounted on the motor seat (5), and a second anti-collision block (32) capable of contacting the slide plate (10) is mounted on the bearing seat (6).

7. The closed positive pressure dustproof linear module according to claim 1, characterized in that: Both ends of the dustproof cloth (12) in the length direction are provided with T-shaped blocks (33); the upper baffle plate (2), the lower baffle plate (3) and the slide plate (10) are provided with T-shaped slots (34) that match the T-shaped blocks (33); when the T-shaped blocks (33) are inserted into the T-shaped slots (34), the dustproof cloth (12) is located between the base (1) and the cover plate (4).

8. The closed positive pressure dustproof linear module according to claim 1, characterized in that: The cover plate (4) is a transparent plate.

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