Bearing protection structure of numerical control machine tool

Abstract

The utility model relates to a numerical control machine tool bearing protection structure, which belongs to the technical field of bearing protection, and comprises an outer protection cover, one end of the outer protection cover is provided with an inner protection cover, the other end of the outer protection cover is fixedly provided with a rubber ring, and the two ends of the outer protection cover are respectively provided with an extension mechanism; the extension mechanism comprises extension grooves, the extension grooves are formed in the two ends of the outer protective cover, and springs are distributed in the extension grooves at equal intervals. The outer protective cover has the advantages that when the outer protective cover is used, the width of the outer protective cover can be adjusted according to the model and size of a bearing needing to be protected through matched use of the extending mechanism and the adjusting mechanism, and therefore the outer protective cover can meet the use requirements of bearings with different widths; and the positions of the clamping pieces are adjusted, so that the clamping pieces can fixedly clamp bearings with different diameters to clamp and fix the bearings, and the situation that the bearings shake and move in the using process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing protection, in particular to a bearing protection structure for a numerically controlled machine tool. Background Art

[0002] The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Among the various uses of bearings, machine tool bearings are one of the most common uses. In order to prevent oil from entering the ball screw bearing and causing abnormal damage to the bearing, most machine tools install an oil-proof seal at the entrance of the bearing seat, relying on the inner lip friction seal made of rubber material to achieve oil prevention.

[0003] Application number: 202122072606.4; a bearing protection structure is disclosed, and the key points of its technical solution are: it includes a casing and a bearing seat; the casing includes a first shell and a second shell, and the casing is provided with an air inlet; the bearing seat has a bearing chamber for accommodating the bearing, and the bearing seat includes a first accommodation portion formed on the first shell and a second accommodation portion formed on the second shell, the first accommodation portion and an assembly structure that cooperates with each other is arranged on the first accommodation portion and the second accommodation portion, and the assembly structure can form a gap after assembly, and the gap can provide a fault-tolerant space when there is a dimensional error or deformation in the casing, so that the assembly structure can completely close the end of the bearing chamber adjacent to the air inlet after assembly, thereby effectively blocking external dust and water vapor from entering the bearing chamber; and the assembly structure can calibrate the first casing and the second casing to improve the assembly accuracy.

[0004] The structure of the protective device of the machine tool bearing protection structure in the above-mentioned comparative documents is relatively fixed, while the bearing models are diverse. Therefore, the protective devices of bearings of different models need to be protected with corresponding protective devices, which in turn leads to limitations in the use of the equipment. In response to the above problems, we have introduced a CNC machine tool bearing protection structure. Utility Model Content

[0005] The purpose of the utility model is to provide a bearing protection structure for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the utility model is:

[0007] It comprises an outer protective cover, one end of which is provided with an inner protective cover, the other end of which is fixedly provided with a rubber ring, and both ends of the outer protective cover are provided with an extension mechanism;

[0008] The extension mechanism comprises an extension groove, the extension groove is opened inside the two ends of the outer protective cover, springs are evenly distributed inside the extension groove, a connecting ring is fixedly installed on the side of the spring away from the center of the outer protective cover, and an extension protective cover is fixedly installed on the side of the connecting ring away from the center of the outer protective cover;

[0009] The outer portion of the outer protective cover is equidistantly provided with adjustment mechanisms for adjusting according to the bearing diameter;

[0010] An assembling mechanism for connecting and assembling is arranged at one end of the inner protective cover close to the outer protective cover.

[0011] Furthermore, the central axes of the outer protective cover, the inner protective cover and the rubber ring coincide with each other, and the protection of the bearing is achieved by using the outer protective cover and the inner protective cover in combination.

[0012] Furthermore, the extended protective cover is provided with adjustment buckles equidistantly on one side close to the center of the outer protective cover, an adjustment screw is provided inside the adjustment buckle, and the outer sides of both ends of the adjustment screw are threadedly connected with adjustment nuts, so that the extended protective cover and the outer protective cover can be adjusted according to the width of the bearing, thereby adjusting the width of the combined outer protective cover.

[0013] Furthermore, the adjustment mechanism includes an adjusting half ring, which is sleeved on the upper and lower ends of the outside of the outer protective cover, and both ends of the adjusting half ring are fixedly connected with adjustment plates. Adjustment rods are equidistantly distributed on the side of the adjusting half ring close to the center of the outer protective cover, and a clamping plate is fixedly installed on the side of the adjusting rod close to the center of the outer protective cover. An adjusting bolt is provided at one end of the adjusting plate, and the bearing is clamped and fixed from the inside of the outer protective cover through the clamping plate.

[0014] Furthermore, the adjusting rod is inserted into the interior of the outer protective cover, and the diameter of the combined adjusting half rings is adjusted by adjusting plates and adjusting bolts, so that the depth of the adjusting rod inserted into the outer protective cover can be adjusted according to the diameter of the bearing to be protected.

[0015] Furthermore, the assembly mechanism includes connecting pins, and connecting grooves are equidistantly formed inside the outer protective cover near one end of the inner protective cover, so that the outer protective cover and the inner protective cover can be assembled through the connecting pins and the connecting grooves.

[0016] Furthermore, the connecting pin is set to be L-shaped, and a movable connection structure is formed between the outer protective cover and the inner protective cover through the connecting pin and the connecting groove, and the outer protective cover and the inner protective cover can be assembled through the special L-shaped structure of the connecting pin.

[0017] The utility model provides a CNC machine tool bearing protection structure through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First: When the utility model is in use, the extension mechanism and the adjustment mechanism are used in coordination to adjust the width of the outer protective cover according to the size of the bearing model to be protected, so that the outer protective cover can meet the use of bearings of different widths, and the position of the clamping plate is adjusted by adjusting the half ring, so that the clamping plate can clamp and fix bearings of different diameters to avoid shaking and moving of the bearing during use.

[0019] Second, in the present invention, since the widths of the outer ring and the inner ring of the bearing are different, it is necessary to use an outer protective cover and an inner protective cover in combination to protect the bearing, and through a movable connection structure, it is easy to disassemble the outer protective cover and the inner protective cover to facilitate maintenance of the internal bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the unfolded structure of the outer protective cover and the inner protective cover of the utility model;

[0024] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0025] Explanation of the accompanying drawings: 1. Outer protective cover; 2. Inner protective cover; 3. Rubber ring; 4. Extension mechanism; 401. Extension groove; 402. Spring; 403. Connecting ring; 404. Extension protective cover; 5. Adjusting buckle; 6. Adjusting screw; 7. Adjusting nut; 8. Adjusting half ring; 9. Adjusting plate; 10. Adjusting rod; 11. Clamping plate; 12. Adjusting bolt; 13. Connecting pin; 14. Connecting groove. DETAILED DESCRIPTION

[0026] The following will be combined with the attached Figures 1 to 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a CNC machine tool bearing protection structure through improvement, such as Figure 1-Figure 4 As shown, it includes an outer protective cover 1, an inner protective cover 2 is arranged at one end of the outer protective cover 1, a rubber ring 3 is fixedly installed at the other end of the outer protective cover 1, and an extension mechanism 4 is arranged at both ends of the outer protective cover 1; the extension mechanism 4 includes an extension groove 401, the extension groove 401 is opened inside the two ends of the outer protective cover 1, and springs 402 are evenly distributed inside the extension groove 401, a connecting ring 403 is fixedly installed on the side of the spring 402 away from the center of the outer protective cover 1, and an extension protective cover 404 is fixedly installed on the side of the connecting ring 403 away from the center of the outer protective cover 1; an adjustment mechanism for adjusting according to the bearing diameter is evenly distributed on the outside of the outer protective cover 1; an assembly mechanism for connecting and assembling is arranged at one end of the inner protective cover 2 close to the outer protective cover 1. The central axes of the outer protective cover 1, the inner protective cover 2 and the rubber ring 3 coincide. Adjustment buckles 5 are evenly distributed on one side of the extension protective cover 404 close to the center of the outer protective cover 1, and an adjustment screw 6 is arranged inside the adjustment buckle 5, and adjustment nuts 7 are threadedly connected to the outside of both ends of the adjustment screw 6. .

[0028] In this embodiment: first, the width of the outer protective cover 1 is adjusted according to the width of the bearing used for protection, and the adjusting nut 7 is rotated. Through the action of the adjusting screw 6, the adjusting buckle 5 and the spring 402, the extended protective cover 404 is moved to the side away from the outer protective cover 1, thereby adjusting the width of the outer protective cover 1 after the outer protective cover 1 and the extended protective cover 404 are combined. After the adjustment is completed, the adjusted state of the outer protective cover 1 is fixed through the action of the adjusting nut 7, the adjusting screw 6 and the adjusting buckle 5.

[0029] In the above scheme, the bearing and the outer protective cover 1 are clamped and fixed according to the diameter of the bearing to be protected, and the specific operation is as follows:

[0030] like Figure 2 and Figure 4 As shown, the adjustment mechanism includes an adjustment half ring 8, which is sleeved on the upper and lower ends of the outer protective cover 1, and both ends of the adjustment half ring 8 are fixedly connected with adjustment plates 9. The side of the adjustment half ring 8 close to the center of the outer protective cover 1 is evenly distributed with adjustment rods 10, and the side of the adjustment rod 10 close to the center of the outer protective cover 1 is fixedly installed with a clamping plate 11, and one end of the adjustment plate 9 is provided with an adjustment bolt 12. The adjustment rod 10 is inserted into the inner part of the outer protective cover 1, and the diameter of the combined adjustment half ring 8 is adjusted by the adjustment plate 9 and the adjustment bolt 12;

[0031] In this embodiment: the diameter of the combined adjusting half ring 8 is adjusted by adjusting the half ring 8 and the adjusting bolt 12, and the depth of the adjusting rod 10 pushed into the outer protective cover 1 by the adjusting half ring 8 is adjusted, and then the diameter of the ring formed by the clamping piece 11 is adjusted, and the bearing is clamped and fixed from the outside of the bearing by the clamping piece 11 to prevent the bearing from shaking during use.

[0032] In the first embodiment, since the inner and outer rings of the bearing have different diameters, it is necessary to provide protection by combining an outer protective cover 1 and an inner protective cover 2. The specific operation is as follows:

[0033] like Figure 1 and Figure 3 As shown, the assembly mechanism includes a connecting pin 13, and connecting grooves 14 are equidistantly provided inside the outer protective cover 1 near one end of the inner protective cover 2. The connecting pin 13 is set in an L shape, and the outer protective cover 1 and the inner protective cover 2 form a movable connection structure through the connecting pin 13 and the connecting groove 14;

[0034] In this embodiment: Since the connecting pin 13 and the inner protective cover 2 form an integrated structure, the connecting pin 13 is inserted into the interior of the connecting groove 14. After partial rotation, the connecting pin 13 is able to penetrate into the interior of the connecting groove 14 and complete the assembly of the outer protective cover 1 and the inner protective cover 2.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing protection structure for a CNC machine tool, characterized in that: It comprises an outer protective cover (1), one end of the outer protective cover (1) is provided with an inner protective cover (2), the other end of the outer protective cover (1) is fixedly mounted with a rubber ring (3), and both ends of the outer protective cover (1) are provided with extension mechanisms (4); The extension mechanism (4) comprises an extension groove (401), the extension groove (401) being arranged inside two ends of the outer protective cover (1), springs (402) being evenly distributed inside the extension groove (401), a connecting ring (403) being fixedly mounted on a side of the spring (402) away from the center of the outer protective cover (1), and an extension protective cover (404) being fixedly mounted on a side of the connecting ring (403) away from the center of the outer protective cover (1); The outer portion of the outer protective cover (1) is equidistantly provided with adjustment mechanisms for adjusting according to the bearing diameter; An assembly mechanism for connection and assembly is provided at one end of the inner protective cover (2) close to the outer protective cover (1).

2. A CNC machine tool bearing protection structure according to claim 1, characterized in that: The central axes of the outer protective cover (1), the inner protective cover (2) and the rubber ring (3) coincide with each other.

3. A CNC machine tool bearing protection structure according to claim 1, characterized in that: Adjustment buckles (5) are evenly distributed on one side of the extended protective cover (404) close to the center of the outer protective cover (1), and an adjustment screw (6) is arranged inside the adjustment buckle (5). The outsides of both ends of the adjustment screw (6) are threadedly connected with adjustment nuts (7).

4. A CNC machine tool bearing protection structure according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment half ring (8), the adjustment half ring (8) being sleeved on the upper and lower ends of the outer protective cover (1), the two ends of the adjustment half ring (8) being fixedly connected with adjustment plates (9), the side of the adjustment half ring (8) close to the center of the outer protective cover (1) having adjustment rods (10) equidistantly distributed, the side of the adjustment rod (10) close to the center of the outer protective cover (1) having a clamping plate (11) fixedly mounted, and one end of the adjustment plate (9) being provided with an adjustment bolt (12).

5. A CNC machine tool bearing protection structure according to claim 4, characterized in that: The adjusting rod (10) is inserted into the interior of the outer protective cover (1), and the diameter of the combined adjusting half rings (8) is adjusted by means of an adjusting plate (9) and an adjusting bolt (12).

6. A CNC machine tool bearing protection structure according to claim 1, characterized in that: The assembly mechanism comprises a connecting pin (13), and connecting grooves (14) are equidistantly provided inside the outer protective cover (1) near one end of the inner protective cover (2).

7. A CNC machine tool bearing protection structure according to claim 6, characterized in that: The connecting pin (13) is arranged in an L shape, and a movable connection structure is formed between the outer protective cover (1) and the inner protective cover (2) via the connecting pin (13) and the connecting groove (14).

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