Protective cover for guide rail of numerical control machine tool

By designing a ball bearing structure and buffer device for oil supply through a lubrication pipe on the CNC machine tool guide rail, the wear problem of the protective cover on the guide rail during frequent movement is solved, achieving stable installation and lubrication of the guide rail and extending the service life of the protective cover.

CN223834082UActive Publication Date: 2026-01-27YUXI TAIDA CNC MASCH TOOL CO LTD
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Patent Information

Application Number
CN202520160656.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-27
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing CNC machine tool guide rail protective covers are prone to wear and tear on the guide rails during frequent movement, and improper installation may lead to loosening or tilting, affecting the performance.

Method used

A protective cover for CNC machine tool guideways was designed, which adopts a ball bearing structure with oil supply through a lubrication pipe, combined with an O-ring and a flow restrictor. The balls roll on the guideway surface to reduce friction, and the frequent movement of the protective cover is buffered by a support shaft, spring, and buffer plate to ensure a stable installation.

Benefits of technology

It effectively reduces wear on the guide rails, maintains lubrication, extends the service life of the protective cover, ensures secure installation, and prevents lubricant leakage and excessive consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a numerical control machine tool guide rail protective cover, and relates to the technical field of protective covers, in particular to a numerical control machine tool guide rail protective cover which comprises a base, a guide rail is fixedly installed above the base, baffles are fixedly installed at the two ends of the guide rail, and folding protective covers are fixedly installed on the end faces of the front sides of the baffles through bolts. A sliding block is fixedly connected to the end face of the folding protection cover, a groove is formed in the front side of the folding protection cover, and a plurality of circular holes are formed in the groove. The connecting seats are fixedly mounted on the side face of the lubricating oil pipe, the balls are movably sleeved with the connecting seats, lubricating oil can be provided for the balls through the lubricating oil pipe, meanwhile, the balls can be kept in a lubricating state all the time under the action of the lubricating oil pipe, and abrasion to the guide rail in the frequent movement process of the protective cover is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, specifically a protective cover for CNC machine tool guideways. Background Technology

[0002] A machine tool is a machine used to manufacture machines; it is also called a machine tool or machine worker. A CNC machine tool is a device that automatically processes parts according to a pre-programmed machining program. Because machine tool processing involves certain risks, protective covers are necessary. Machine tool protective covers are installed on the machine tool to protect its surface from external corrosion and damage, and to prevent internal debris from flying out.

[0003] When installing protective covers on guideways, it is essential to first confirm their suitability for the equipment being used before using accordion guideway covers. Using the wrong type of cover may result in inability to secure it or proper installation. During installation, the cover needs to be placed on the guideway and adjusted to ensure stable operation. Ensure the cover is firmly positioned on the guideway during installation, avoiding loosening or tilting. Simultaneously, the height of the cover should be adjusted to be parallel to the guideway to prevent it from pressing against the guideway if too low or losing its protective effect if too high. However, when using protective covers, frequent movement (such as stretching and contracting) causes repeated friction on the guideway surface, easily leading to wear. To address this issue, we propose a CNC machine tool guideway protective cover. Utility Model Content

[0004] This utility model provides a protective cover for CNC machine tool guideways, which solves the problem of protective covers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool guide rail protective cover, comprising a base, a guide rail fixedly mounted on the top of the base, baffles fixedly mounted at both ends of the guide rail, and a folding protective cover fixedly mounted on the front end face of the baffles by bolts, a sliding block fixedly connected to the end face of the folding protective cover, a groove formed on the front side of the folding protective cover, and multiple circular holes formed inside the groove, a lubricating oil pipe fixedly mounted inside the groove of the folding protective cover, and multiple connecting seats fixedly mounted on the side of the lubricating oil pipe, each connecting seat having an O-ring fixedly mounted inside, and a flow restrictor fixedly connected to the bottom of the O-ring, and ball bearings movably fitted inside each connecting seat, allowing the ball bearings to roll inside the connecting seat.

[0006] Optionally, an oil inlet is fixedly installed on the top of the folding protective cover, and the oil inlet is connected to the lubricating oil pipe.

[0007] Optionally, the ball extends to the outside through a circular hole inside the folded protective cover, and the ball can contact the surface of the guide rail.

[0008] Optionally, multiple support shafts are fixedly installed inside the groove of the folding protective cover, and multiple springs are fixedly installed outside the support shafts inside the groove of the folding protective cover. Each of the multiple springs has a sleeve fixedly installed on its end face, and a buffer plate is fixedly connected to the end face of the sleeve.

[0009] Optionally, the flow restrictor has an elongated slot inside, and the flow restrictor is in contact with the surface of the ball.

[0010] Optionally, the support shaft and spring are evenly distributed in the four corners of the groove inside the folding protective cover, and the sleeve can be fitted onto the outside of the support shaft.

[0011] This utility model has the following beneficial effects:

[0012] 1. The CNC machine tool guide rail protective cover has multiple connecting seats fixedly installed on the side via lubrication oil pipes. Each connecting seat has a movable ball bearing inside. Lubricating oil can be supplied to the ball bearings through the lubrication oil pipes. Under the action of the lubrication oil pipes, the ball bearings can always be kept lubricated, thus avoiding wear on the guide rail during the frequent movement of the protective cover.

[0013] 2. The CNC machine tool guideway protective cover has O-rings fixedly installed inside the connecting seat, and a flow restrictor is fixedly connected to the bottom of the O-ring. The O-rings contact the balls, preventing lubricating oil from flowing out of the connecting seat through the lubrication pipe. At the same time, the flow restrictor contacts the surface of the balls, preventing the balls from carrying more lubricating oil during movement. Under the action of the flow restrictor, the balls can maintain the optimal lubrication state. Furthermore, by using the buffer plate and spring set at the end of the folding protective cover, the impact buffer is ensured during frequent movement of the folding protective cover, protecting it from the impact force and improving the service life of the folding protective cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the folding protective cover of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal groove of the folding protective cover of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the lubricating oil pipe of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the O-ring rubber ring of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the buffer plate of this utility model.

[0020] In the diagram: 1. Base; 2. Guide rail; 3. Baffle; 4. Folding protective cover; 5. Sliding block; 6. Lubricating oil pipe; 7. Connecting seat; 8. O-ring; 9. Flow restrictor; 10. Ball bearing; 11. Spring; 12. Sleeve; 13. Buffer plate; 14. Oil inlet; 15. Support shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 6 This utility model provides a technical solution: a protective cover for a CNC machine tool guideway, including a base 1 on which a guideway 2 can be fixedly installed. The guideway 2 is fixedly installed above the base 1, and a sliding block 5 can slide outside the guideway 2. Both ends of the guideway 2 are fixedly installed with baffles 3, and a folding protective cover 4 can be fixedly installed through the baffles 3. The folding protective cover 4 is bolted to the front end face of the baffles 3, thus protecting the guideway 2. A sliding block 5 is fixedly connected to the end face of the folding protective cover 4, allowing it to slide outside the guideway 2. A groove is formed on the front side of the folding protective cover 4, and multiple circular holes are formed inside the groove. A lubricating oil pipe 6 is fixedly installed inside the groove. The lubricating oil pipe 6 allows lubricating oil to be added into the groove and makes it easier for the ball bearing 10 to contact the lubricating oil. Multiple connecting seats 7 are fixedly installed on the side of the lubricating oil pipe 6. The ball bearing 10 can roll inside the connecting seats 7. O-rings 8 are fixedly installed inside each connecting seat 7 to prevent the lubricating oil inside the lubricating oil pipe 6 from flowing out. A flow restrictor 9 is fixedly connected to the bottom of the O-ring 8 to make it easier for the ball bearing 10 to carry an appropriate amount of lubricating oil. The ball bearing 10 is movably fitted inside each connecting seat 7. The contact between the ball bearing 10 and the surface of the guide rail 2 is minimized to reduce friction, and the ball bearing 10 can roll inside the connecting seat 7.

[0023] Please see Figure 2An oil inlet 14 is fixedly installed on the top of the folding protective cover 4, and the oil inlet 14 is connected to the lubricating oil pipe 6. Through the connection between the oil inlet 14 and the lubricating oil pipe 6, lubricating oil can be added into the interior of the lubricating oil pipe 6.

[0024] Please see Figures 2 to 6 The ball bearing 10 extends to the outside through the circular hole inside the folding protective cover 4, and the ball bearing 10 can contact the surface of the guide rail 2. The contact between the ball bearing 10 and the surface of the guide rail 2 can reduce the friction between the folding protective cover 4 and the guide rail 2.

[0025] Please see Figures 2 to 6 Multiple support shafts 15 are fixedly installed inside the groove of the folding protective cover 4. The support shafts 15 can support and limit the sleeve 12. Multiple springs 11 are fixedly installed outside the support shafts 15 inside the groove of the folding protective cover 4. The spring force of the springs 11 can play a buffering role. The sleeves 12 are fixedly installed on the end face of each of the multiple springs 11. The sleeves 12 can make the buffer plate 13 play a better buffering role. The end face of the sleeve 12 is fixedly connected to the buffer plate 13. The buffer plate 13 can reduce the buffering effect by contacting the sliding block 5.

[0026] Please see Figures 1 to 6 The flow restrictor 9 has an elongated slot inside, and the flow restrictor 9 is in contact with the surface of the ball 10. The contact between the flow restrictor 9 and the surface of the ball 10 allows the ball 10 to carry out an appropriate amount of lubricating oil during the rolling process.

[0027] Please see Figures 2 to 6 The support shaft 15 and spring 11 are evenly distributed in the four corners of the groove inside the folding protective cover 4, and the sleeve 12 can be fitted on the outside of the support shaft 15. The support shaft 15, spring 11, sleeve 12 and buffer plate 13 fixedly installed in the four corners of the groove inside the folding protective cover 4 can buffer the sliding block 5 during the movement.

[0028] In summary, when using this CNC machine tool guideway protective cover, the folding protective cover 4 is fitted onto the outside of the guideway 2. The rear end of the folding protective cover 4 is fixed to the end face of the baffle 3 using bolts, and the front end face of the folding protective cover 4 is fixed to the side of the sliding block 5. During use, lubricating oil is added to the inside of the lubricating oil pipe 6 through the oil inlet 14. Then, under the action of the sliding block 5, the ball bearing 10, which is movable and fitted inside the connecting seat 7, rolls. Simultaneously, under the action of the O-ring rubber ring 8 inside the connecting seat 7, the O-ring rubber ring 8... Contact with the ball bearing 10 reduces the amount of lubricating oil flowing out of the lubricating oil pipe 6 through the connecting seat 7. At the same time, the flow restrictor 9 contacts the surface of the ball bearing 10, so that the ball bearing 10 carries an appropriate amount of lubricating oil during the movement. Under the action of the flow restrictor 9, the ball bearing 10 can maintain the best lubrication state. When the sliding block 5 slides outside the guide rail 2, the multiple support shafts 15, springs 11, sleeves 12 and buffer plates 13 installed in the groove of the folding protective cover 4 can be used to minimize the productivity generated by the sliding block 5 during the movement.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover for a CNC machine tool guide rail, comprising a base (1), wherein a guide rail (2) is fixedly installed above the base (1), characterized in that: Both ends of the guide rail (2) are fixedly installed with baffles (3), and the front end face of the baffle (3) is fixedly installed with a folding protective cover (4) by bolts. The end face of the folding protective cover (4) is fixedly connected with a sliding block (5). The front side of the folding protective cover (4) is provided with a groove, and the inside of the groove is provided with multiple circular holes. The inside of the groove of the folding protective cover (4) is fixedly installed with a lubricating oil pipe (6), and the side of the lubricating oil pipe (6) is fixedly installed with multiple connecting seats (7). The inside of each connecting seat (7) is fixedly installed with an O-ring rubber ring (8), and the bottom of the O-ring rubber ring (8) is fixedly connected with a flow restrictor (9). The inside of each connecting seat (7) is movably fitted with a ball (10), and the ball (10) can roll inside the connecting seat (7).

2. The CNC machine tool guide rail protective cover according to claim 1, characterized in that: An oil inlet (14) is fixedly installed on the top of the folding protective cover (4), and the oil inlet (14) is connected to the lubricating oil pipe (6).

3. A protective cover for CNC machine tool guideways according to claim 1, characterized in that: The ball (10) extends to the outside through the circular hole inside the folded protective cover (4), and the ball (10) can contact the surface of the guide rail (2).

4. A protective cover for CNC machine tool guideways according to claim 1, characterized in that: Multiple support shafts (15) are fixedly installed inside the groove of the folding protective cover (4), and multiple springs (11) are fixedly installed outside the support shafts (15) inside the groove of the folding protective cover (4). A sleeve (12) is fixedly installed on the end face of each of the multiple springs (11), and a buffer plate (13) is fixedly connected to the end face of the sleeve (12).

5. A protective cover for CNC machine tool guideways according to claim 1, characterized in that: The flow restrictor (9) has an elongated slot inside, and the flow restrictor (9) is in contact with the surface of the ball (10).

6. A protective cover for CNC machine tool guideways according to claim 4, characterized in that: The support shaft (15) and spring (11) are evenly distributed in the four corners of the groove inside the folding protective cover (4), and the sleeve (12) can be fitted onto the outside of the support shaft (15).