Linear sliding table with ball screw protection structure

Abstract

The utility model discloses a linear sliding table with a ball screw protection structure, which comprises a base, a driving screw is rotatably connected on the base, a sliding block is arranged on the driving screw, the sliding block is matched with the driving screw through a ball and a thread, two ends of the base are provided with first shielding plates, a protection plate is arranged above the base, and the first shielding plates are provided with second shielding plates. A second shielding plate is arranged at the lower end of the protection plate, connecting plates are arranged at the two ends of the sliding block, the connecting plates are matched with the first shielding plate and the second shielding plate, oil boxes are arranged at the two ends of the sliding block, sliding holes are formed in the oil boxes, the sliding holes are matched with the driving lead screws, and oil outlet holes are formed in the inner sides of the sliding holes. According to the equipment, the working space of the lead screw is protected, the influence of dust is avoided, lubricating oil can be conveniently smeared on the lead screw, and the working quality of the equipment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of linear slide technology, and more specifically, it relates to a linear slide with a ball screw protection structure. Background Technology

[0002] A linear slide is a mechanical structure that provides linear motion. It consists of a motion guide rail, a motion module, and a ball screw linear transmission mechanism, enabling flexible and precise motion transmission and has a wide range of applications.

[0003] Traditional linear slides lack protective devices. During operation, dust and other foreign objects from the working environment can fall into the work area and adhere to the lead screw, affecting the fit between the lead screw and the slider. If not detected and cleaned in time, these foreign objects can cause wear on the mating structure between the lead screw and the slider, affecting the quality and service life of the equipment. Furthermore, while ball screws, as a transmission structure, can greatly reduce ineffective friction between structures, their surface lubrication deteriorates over time, affecting the fit between structures and thus the transmission, potentially causing equipment damage. Frequent lubrication is required, which is inconvenient and reduces worker efficiency. Additionally, common lead screws are usually driven by a motor. When the desired position is reached, the motor stops rotating to fix the structure. However, common motors continue to rotate due to inertia after stopping, making a sudden stop impossible. This causes the ball screw to rotate excessively during operation, affecting the slider's final positioning and impacting the accuracy of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a linear slide with a ball screw protection structure, thereby solving the technical problem mentioned in the background art that the linear slide has a simple structure but is inconvenient to use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a linear slide table with a ball screw protection structure, comprising a base, a drive screw rotatably connected to the base, a slider on the drive screw, the slider engaging with the drive screw via balls and threads, first baffles at both ends of the base, a protective plate above the base, a second baffle at the lower end of the protective plate, a gap between the second baffle and the first baffle, and connecting plates at both ends of the slider, the connecting plates engaging with the first and second baffles;

[0008] The slider has oil boxes at both ends, and the oil boxes have sliding holes that cooperate with the drive screw. The sliding holes have oil outlet holes inside, and lubricating cotton is placed inside the sliding holes and cooperates with the oil outlet holes.

[0009] The present invention is further configured such that one end of the drive screw is provided with an emergency stop disc, one end of the base is provided with a pressure push rod, a moving block is slidably connected on the base, one end of the moving block is connected to the pressure push rod, and the other end is provided with a first emergency stop plate, the first emergency stop plate cooperates with the emergency stop disc to facilitate emergency stopping.

[0010] The present invention is further configured such that a support frame is provided on the base, a rotating frame is rotatably connected between the support frames, a pressure block is provided at one end of the moving block, the lower end of the rotating frame cooperates with the pressure block, and a second emergency stop plate is provided at the upper end, which cooperates with the emergency stop disc to improve the emergency stop effect.

[0011] The present invention is further configured such that a positioning block is provided at the lower end of the protective plate, a positioning groove is provided on the base, a fixing hole is provided on the positioning block, and a fixing groove is provided in the positioning groove, which facilitates the disassembly and assembly of the equipment.

[0012] The present invention is further configured such that guide rods are provided at both ends of the base, and sliding rings are provided at both ends of the slider. The sliding rings slide in cooperation with the guide rods to make the slider move stably.

[0013] The present invention is further configured such that a movable wheel is rotatably connected to the lower end of the connecting plate, and the movable wheel cooperates with the base to make the equipment move smoothly.

[0014] The present invention is further configured such that a support plate is provided at one end of the base, a drive motor is provided on the support plate, a gearbox is provided at one end of the drive motor, and the gearbox cooperates with the drive screw for easy control.

[0015] The present invention is further configured such that one end of the base is provided with an anti-collision post and the other end is provided with an anti-collision block to avoid damage from collisions between equipment.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a linear slide with a ball screw protection structure, which has the following advantages:

[0018] 1. Supported by a base, the ball screw and slider move linearly. A protective plate shields the upper part of the working area, and a first and second shielding plate work together to shield the sides of the working area. A connecting plate connects the slider to the outside, providing a sliding table function. By shielding the upper and sides, a protective structure is formed, preventing dust from falling into the working area and preventing dust from affecting the engagement of the ball screw and slider, thus avoiding damage to the equipment.

[0019] 2. An oil box provides a storage structure for storing lubricating oil. It engages with the lead screw through a sliding hole and allows the lubricating oil to flow out through an oil outlet. The flow of lubricating oil is controlled by a lubricating cotton ball and the lubricating oil is evenly applied to the lead screw. This lubricates the fit between the lead screw and the slider structure, maintains the ball screw and linear slide, extends the service life of the equipment, reduces the need for frequent oiling by workers, facilitates operation, and improves work efficiency.

[0020] 3. The emergency stop plate rotates synchronously with the lead screw, and pressure is applied by the pressure push rod. The movement block and the first emergency stop plate cooperate with the emergency stop plate to stop the rotation of the emergency stop plate. The support frame, the rotating frame, the pressure block, the second emergency stop plate and the movement block cooperate to further provide a structure to stop the rotation, thereby stopping the rotation of the lead screw abruptly and preventing the lead screw from continuing to rotate due to inertia after the motor stops, thus improving the working accuracy of the slide table. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of a linear slide table with a ball screw protection structure according to the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the protective plate and the base when disassembled in this utility model;

[0023] Figure 3 This is a bottom view of the structure of the slider after disassembly and its engagement with the oil box in this utility model;

[0024] Figure 4 This is a schematic diagram of the cooperation structure between the drive screw and the emergency stop plate on the base in this utility model;

[0025] Figure 5 This is a schematic diagram of the bottom structure after the protective plate is disassembled in this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled and assembled structure of the moving block and the pressure block in this utility model.

[0027] In the diagram: 1. Base; 2. Drive screw; 3. Slider; 4. First baffle plate; 5. Protective plate; 6. Second baffle plate; 7. Connecting plate; 8. Oil box; 9. Sliding hole; 10. Oil outlet; 11. Lubricating cotton; 12. Emergency stop disc; 13. Pressure push rod; 14. Moving block; 15. First emergency stop plate; 16. Support frame; 17. Rotating frame; 18. Pressure block; 19. Second emergency stop plate; 20. Positioning block; 21. Positioning groove; 22. Fixing hole; 23. Fixing groove; 24. Guide rod; 25. Sliding ring; 26. Moving wheel; 27. Support plate; 28. Drive motor; 29. ​​Gearbox; 30. Anti-collision post; 31. Anti-collision block. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A linear slide with a ball screw protection structure includes a base 1, a drive screw 2 rotatably connected to the base 1, a slider 3 on the drive screw 2, the slider 3 engaging with the drive screw 2 via balls and threads, first baffles 4 at both ends of the base 1, a protective plate 5 above the base 1, a second baffle 6 at the lower end of the protective plate 5, a gap between the second baffle 6 and the first baffle 4, and connecting plates 7 at both ends of the slider 3 engaging with the first baffle 4 and the second baffle 6.

[0032] The slider 3 has oil boxes 8 at both ends, and a sliding hole 9 is provided on the oil box 8. The sliding hole 9 cooperates with the drive screw 2. An oil outlet hole 10 is provided inside the sliding hole 9, and a lubricating cotton 11 is provided inside the sliding hole 9. The lubricating cotton 11 cooperates with the oil outlet hole 10.

[0033] In this embodiment, the device is supported by a base 1. By controlling the rotation of the drive screw 2, power is provided to the slider 3, causing the slider 3 to move and form a sliding table structure. When using the device, a protective plate 5 blocks the top of the drive screw 2. The first shielding plate 4 and the second shielding plate 6 cooperate to form two sets of shields on both sides of the drive screw 2. A connecting plate 7 passes through the gap between the first shielding plate 4 and the second shielding plate 6, allowing the slider 3 to cooperate with the outside world and continue to provide the sliding table operation. The protective plate 5, the first shielding plate 4, and the second shielding plate 6 provide protection. With the guidance of the second shielding plate 6 and the obstruction of the first shielding plate 4, foreign objects that want to enter the interior need to overcome gravity and move upward along the gap between the first shielding plate 4 and the second shielding plate 6. Dust and other foreign objects will be blocked at the first shielding plate 4 due to their own gravity and will not affect the drive screw 2 inside.

[0034] More specifically, lubricating oil is added to the oil box 8. When the equipment is working, the slider 3 will move the oil box 8 with it. The oil box 8 will slide and engage with the drive screw 2 through the sliding hole 9 without interference. The lubricating oil overflows from the oil outlet 10. The lubricating cotton 11 absorbs the lubricating oil to prevent it from overflowing too quickly. At the same time, the lubricating oil is evenly contacted with the drive screw 2, which maintains the drive screw 2, the slider 3 that subsequently engages with the drive screw 2, and the internal balls.

[0035] Please see Figure 3 and Figure 6 As one embodiment of the mobile emergency stop: one end of the drive screw 2 is provided with an emergency stop disc 12, one end of the base 1 is provided with a pressure push rod 13, and a moving block 14 is slidably connected on the base 1. One end of the moving block 14 is connected to the pressure push rod 13, and the other end is provided with a first emergency stop plate 15, which cooperates with the emergency stop disc 12.

[0036] Specifically, the emergency stop disc 12 rotates together with the drive screw 2. By controlling the operation of the pressure push rod 13, the moving block 14 is pushed to move, so that the moving block 14 contacts the emergency stop disc 12 through the first set of emergency stop plates. Under the pressure provided by the pressure push rod 13 and the action of the rough surface of the first set of emergency stop plates, the friction force is used to stop the rotation of the emergency stop disc 12, thereby preventing the drive screw 2 from rotating and realizing emergency stop.

[0037] Please see Figure 3 and Figure 6 As a further implementation of the mobile emergency stop: a support frame 16 is provided on the base 1, and a rotating frame 17 is rotatably connected between the support frames 16. A pressure block 18 is provided at one end of the moving block 14. The lower end of the rotating frame 17 cooperates with the pressure block 18, and the upper end is provided with a second emergency stop plate 19, which cooperates with the emergency stop disc 12.

[0038] Specifically, the rotating frame 17 is supported by the support frame 16, and when the moving block 14 moves, it will drive the pressure block 18 to move together. The pressure block 18 pushes the lower end of the rotating frame 17, causing the rotating frame 17 to rotate. The upper end of the rotating frame 17 supports the second emergency stop plate 19 and contacts the emergency stop disc 12. Under the pressure of the pressure push rod 13, the emergency stop disc 12 stops rotating.

[0039] Please see Figures 2-5 As a further implementation of the protection: the lower end of the protection plate 5 is provided with a positioning block 20, the base 1 is provided with a positioning groove 21, the positioning block 20 is provided with a fixing hole 22, and the positioning groove 21 is provided with a fixing groove 23.

[0040] Specifically, when installing the protection plate 5, the positioning block 20 is inserted into the positioning groove 21 to align the protection plate 5 with the base 1. Then, the bolt is inserted into the fixing groove 23 through the fixing hole 22 to fix the protection plate 5 on the base 1, thus protecting the drive screw 2 and the slider 3.

[0041] Please see Figures 2-3 As a further embodiment of the slider: the base 1 is provided with guide rods 24 at both ends, and the slider 3 is provided with sliding rings 25 at both ends, with the sliding rings 25 slidingly engaged with the guide rods 24.

[0042] Specifically, the guide rod 24 provides the guiding direction and cooperates with the sliding ring 25 to restrict the movement of the slider 3, thereby stabilizing the sliding movement.

[0043] Please see Figure 3 As a further embodiment of the connecting plate: the lower end of the connecting plate 7 is rotatably connected with a movable wheel 26, which cooperates with the base 1.

[0044] Specifically, the lower end of the connecting plate 7 contacts the base 1 via the moving wheel 26, which on the one hand supports the connecting plate 7 and makes the connecting plate 7 more stable, and on the other hand facilitates the movement of the connecting plate 7 with the slider 3.

[0045] Please see Figure 1 As a further embodiment of the base: a support plate 27 is provided at one end of the base 1, a drive motor 28 is provided on the support plate 27, a gearbox 29 is provided at one end of the drive motor 28, and the gearbox 29 cooperates with the drive screw 2.

[0046] Specifically, a support structure is provided by the support plate 27 to support the operation of the drive motor 28 and the gearbox 29. The drive motor 28 provides power, and the speed is reduced under the control of the gearbox 29 to control the rotation of the drive screw 2 at a suitable rotation speed.

[0047] Please see Figure 2As a further embodiment of the base: one end of the base 1 is provided with a collision-resistant post 30, and the other end is provided with a collision-resistant block 31.

[0048] Specifically, when the slider 3 moves toward the edges of both ends of the base 1, it contacts the anti-collision post 30 and the anti-collision block 31 respectively to provide support, avoid impacting the ends of the base 1, and at the same time provide a certain buffering effect to reduce the impact.

[0049] In summary, during the use or operation of the entire device:

[0050] When using the equipment, it is supported by the base 1, connected to an external power source, and lubricating oil is added to the oil box 8. The support plate 27 provides a support structure for the drive motor 28 and gearbox 29. The drive motor 28 provides power, and the gearbox 29 controls the deceleration to rotate the drive screw 2 at a suitable speed. Controlling the rotation of the drive screw 2 provides power to the slider 3. Controlling the rotation direction and speed of the drive screw 2 causes the slider 3 to move along the corresponding direction and at the corresponding speed, thus performing the work of the slide table. The positioning block 20 is inserted into the positioning groove 21 to align the protective plate 5 with the base 1. Then, bolts are inserted through the fixing holes 22 and into the fixing grooves 23 to fix the protective plate 5 to the base 1. This secures the drive screw 2 and the slider 3 to the base 1. Block 3 provides protection, and the protective plate 5 shields the top of the drive screw 2. The first shielding plate 4 and the second shielding plate 6 work together to form two sets of shields on both sides of the drive screw 2. The connecting plate 7 passes through the gap between the first shielding plate 4 and the second shielding plate 6, allowing the slider 3 to cooperate with the outside world and continue to provide the slide table for operation. The protective plate 5, the first shielding plate 4 and the second shielding plate 6 provide protection. Through the guiding cooperation of the protective plate 5 and the second shielding plate 6, the surrounding dust and other foreign objects are blocked, causing the dust to fall to all sides. The dust that falls on the base 1 will be blocked by the first shielding plate 4. Due to the influence of its own gravity, the dust cannot overcome gravity and moves upward along the gap between the first shielding plate 4 and the second shielding plate 6, without affecting the internal drive screw 2.

[0051] When the equipment is working, the slider 3 moves under the drive of the drive screw 2. The guide rod 24 provides the guiding direction and cooperates with the sliding ring 25 to restrict the movement of the slider 3, making the sliding movement stable. The lower end of the connecting plate 7 contacts the base 1 through the moving wheel 26, which supports the connecting plate 7 and makes it more stable. On the other hand, it facilitates the movement of the connecting plate 7 with the slider 3. When the slider 3 moves towards the edges of both ends of the base 1, it contacts the anti-collision post 30 and anti-collision block 31 respectively to provide support and avoid impact on the ends of the base 1. It also provides a certain buffering effect to reduce impact. Moreover, when the slider 3 moves, it will move the oil box 8 with it. The oil box 8 slides with the drive screw 2 through the sliding hole 9 without interference. The lubricating oil overflows from the oil outlet 10. The lubricating cotton 11 absorbs the lubricating oil to prevent it from overflowing too quickly. At the same time, the lubricating oil is evenly contacted with the drive screw 2, which maintains the drive screw 2, the slider 3 that subsequently cooperates with the drive screw 2, and the internal balls. Moreover, when the drive screw 3 moves towards the edges of the base 1, the slider 3 and the anti-collision block 3 contact the slider 3, which provides support and avoids impact on the ends of the base 1. It also provides a certain buffering effect to reduce impact. Moreover, when the slider 3 moves, it will move with the base 1. When the drive screw 2 rotates, the emergency stop disk 12 rotates along with it. When the slider 3 needs to move to a certain position to stop, the drive motor 28 is stopped, and the pressure push rod 13 is activated to push the moving block 14 to move. The moving block 14 then contacts the emergency stop disk 12 through the first set of emergency stop plates. Under the pressure provided by the pressure push rod 13 and the action of the rough surface of the first set of emergency stop plates, friction is used to stop the rotation of the emergency stop disk 12, thereby preventing the drive screw 2 from rotating. Moreover, when the moving block 14 moves... The pressure block 18 will move together, applying pressure to the lower end of the rotating frame 17. The rotating frame 17 is kept stable by the support frame 16. It will rotate due to the pressure on the lower end, so that the upper end of the rotating frame 17 supports the second emergency stop plate 19 and contacts the emergency stop plate 12. Under the pressure of the pressure push rod 13, the first and second emergency stop plates cooperate to clamp the emergency stop plate 12, so that the emergency stop plate 12 stops rotating, thereby causing the drive screw 2 to stop rotating quickly and remain stable, ensuring that the position of the sliding block is accurate and stable.

[0052] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A linear slide with a ball screw protection structure, comprising a base (1), wherein a drive screw (2) is rotatably connected to the base (1), and a slider (3) is provided on the drive screw (2), wherein the slider (3) is engaged with the drive screw (2) by ball bearings and threads, characterized in that: The base (1) has a first shielding plate (4) at both ends, a protective plate (5) on the top of the base (1), a second shielding plate (6) at the bottom of the protective plate (5), a gap between the second shielding plate (6) and the first shielding plate (4), and a connecting plate (7) at both ends of the slider (3), the connecting plate (7) cooperating with the first shielding plate (4) and the second shielding plate (6). The slider (3) has oil boxes (8) at both ends. The oil boxes (8) have sliding holes (9) that cooperate with the drive screw (2). The sliding holes (9) have oil outlet holes (10) inside the sliding holes (9). The sliding holes (9) have lubricating cotton (11) inside the sliding holes (9) that cooperate with the oil outlet holes (10).

2. The linear slide with a ball screw protection structure according to claim 1, characterized in that: One end of the drive screw (2) is provided with an emergency stop disc (12), one end of the base (1) is provided with a pressure push rod (13), and a moving block (14) is slidably connected on the base (1). One end of the moving block (14) is connected to the pressure push rod (13), and the other end is provided with a first emergency stop plate (15), which cooperates with the emergency stop disc (12).

3. A linear slide with a ball screw protection structure according to claim 2, characterized in that: The base (1) is provided with a support frame (16), and a rotating frame (17) is rotatably connected between the support frames (16). One end of the moving block (14) is provided with a pressure block (18). The lower end of the rotating frame (17) cooperates with the pressure block (18), and the upper end is provided with a second emergency stop plate (19). The second emergency stop plate (19) cooperates with the emergency stop disc (12).

4. A linear slide with a ball screw protection structure according to claim 1, characterized in that: The lower end of the protective plate (5) is provided with a positioning block (20), the base (1) is provided with a positioning groove (21), the positioning block (20) is provided with a fixing hole (22), and the positioning groove (21) is provided with a fixing groove (23).

5. A linear slide with a ball screw protection structure according to claim 1, characterized in that: The base (1) has guide rods (24) at both ends, and the slider (3) has sliding rings (25) at both ends. The sliding rings (25) are in sliding cooperation with the guide rods (24).

6. A linear slide with a ball screw protection structure according to claim 5, characterized in that: The lower end of the connecting plate (7) is rotatably connected to a movable wheel (26), which cooperates with the base (1).

7. A linear slide with a ball screw protection structure according to claim 1, characterized in that: The base (1) has a support plate (27) at one end, a drive motor (28) on the support plate (27), a gearbox (29) at one end of the drive motor (28), and the gearbox (29) cooperates with the drive screw (2).

8. A linear slide with a ball screw protection structure according to claim 1, characterized in that: The base (1) has a collision prevention post (30) at one end and a collision prevention block (31) at the other end.

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