Novel vertical machine tool spindle structure

Abstract

The utility model relates to the technical field of main shafts, and discloses a novel vertical machine tool main shaft structure which comprises a main shaft body, a bearing is installed at the end of the main shaft body, the bearing comprises an inner ring, the inner ring is arranged at the end of the main shaft body, an outer ring is arranged outside the inner ring, and the outer ring is connected with the main shaft body. A plurality of rollers are arranged on the side, adjacent to the outer ring, of the inner ring, isolation blocks are arranged among the rollers, V-shaped groove roller paths are arranged on the side, adjacent to the outer ring, of the inner ring, and four V-shaped groove roller paths are formed between the inner ring and the outer ring. According to the utility model, the four V-shaped groove raceways which are arranged at 90 degrees are arranged between the inner ring and the outer ring, and the rollers are arranged in the V-shaped groove raceways, so that the main shaft body can be miniaturized to the greatest extent in the length direction, and meanwhile, high rigidity, high precision, high rotating speed and larger radial and axial bearing capacity are kept; cost is saved, the main shaft and the box body are easier to machine, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of spindles, in particular to a novel vertical machine tool spindle structure. Background Technique

[0002] A vertical machine tool is a common machine tool, usually used for metal processing. The workbench surface of the vertical machine tool is vertically arranged, and the workpiece is fixed on the workbench for processing. This kind of machine tool is suitable for various processing operations. The spindle structure of the vertical machine tool is usually designed to be perpendicular to the workbench surface, suitable for various processing requirements, including milling, drilling, boring and other operations, and is widely used in parts processing and mold manufacturing in the manufacturing industry.

[0003] The front bearing of the spindle of the traditional vertical machine tool is generally composed of a double-row cylindrical roller bearing and a two-way thrust angular contact ball bearing. One mainly bears the radial force and the other mainly bears the axial force. It is a classic structure in the past and is adopted by most vertical lathe spindles. However, there are many traditional spindle bearing structures, which often make the processing of the spindle and the box more complicated and the cost higher. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a novel vertical machine tool spindle structure, aiming to improve the problems of complicated processing and high cost.

[0005] To achieve the above object, the utility model provides the following technical solution: A novel vertical machine tool spindle structure, including a spindle body, a bearing is installed at the end of the spindle body, the bearing includes an inner ring, the inner ring is arranged at the end of the spindle body, an outer ring is arranged outside the inner ring, a plurality of rollers are arranged on one side adjacent to the inner ring and the outer ring, a spacer block is arranged between the plurality of rollers, V-shaped groove raceways are arranged on both sides adjacent to the inner ring and the outer ring, and a total of four V-shaped groove raceways are formed between the inner ring and the outer ring.

[0006] Preferably, the V-shaped groove raceway is arranged at 90 degrees, the roller is arranged in the V-shaped groove raceway at 90 degrees, and the roller is in contact with the inner ring and the outer ring.

[0007] Preferably, the inner ring and the outer ring inside the bearing adopt a split structure.

[0008] The utility model has the following beneficial effects:

[0009] 1. In the present utility model, through four V-groove raceways arranged at 90 degrees between the inner ring and the outer ring, and the rollers are arranged in the V-groove raceways, the spindle body can be miniaturized to the maximum extent in the length direction, while retaining high rigidity, high precision, high rotational speed, and large radial and axial bearing capacities, saving costs, and making the machining of the spindle and the housing easier and with lower costs. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the spindle of a novel vertical machine tool spindle structure proposed by the present utility model;

[0011] Figure 2 It is a schematic diagram of the spacer block of a novel vertical machine tool spindle structure proposed by the present utility model.

[0012] Legend Explanation:

[0013] 1. Spindle body; 2. Bearing; 201. Inner ring; 202. Outer ring; 3. Roller; 4. Spacer block. Detailed Embodiment

[0014] Next, in conjunction with the specification drawings of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0015] Refer to Figure 1 , Figure 2 , an embodiment provided by the present utility model: a novel vertical machine tool spindle structure, including a spindle body 1, a bearing 2 is installed at the end of the spindle body 1, the bearing 2 includes an inner ring 201, the inner ring 201 is arranged at the end of the spindle body 1, an outer ring 202 is arranged outside the inner ring 201, a plurality of rollers 3 are arranged on the adjacent side of the inner ring 201 and the outer ring 202, a spacer block 4 is arranged between the plurality of rollers 3, V-groove raceways are arranged on the adjacent sides of the inner ring 201 and the outer ring 202, and a total of four V-groove raceways are formed between the inner ring 201 and the outer ring 202.

[0016] Specifically, by installing a spacer block 4 between the rollers 3, the inclination of the rollers 3 and the mutual friction between the rollers can be effectively prevented.

[0017] Refer to Figure 2, the V-groove raceways are arranged at 90 degrees, the rollers 3 are arranged in the V-groove raceways at 90 degrees, and the rollers 3 are in contact with the inner ring 201 and the outer ring 202.

[0018] Specifically, the roller 3 is arranged in a V-groove raceway at 90 degrees. The roller 3 is in contact with the inner ring 201 and the outer ring 202, effectively ensuring its overall load-bearing performance and rigidity, and can also bear axial and radial bidirectional loads simultaneously.

[0019] Refer to Figure 1 , Figure 2 , the inner ring 201 and the outer ring 202 inside the bearing 2 adopt a split structure.

[0020] Specifically, by arranging the inner ring 201 and the outer ring 202 inside the bearing 2 in a split structure, the clearance inside the bearing 2 can be adjusted as needed, so a higher rotational accuracy can be obtained.

[0021] Working principle: Through four V-groove raceways arranged at 90 degrees between the inner ring 201 and the outer ring 202, and the roller 3 is arranged in the V-groove raceway, the spindle body 1 can be miniaturized to the maximum extent in the length direction, while retaining high rigidity, high precision, high speed and large radial and axial load-bearing capacity. Due to its small structure, space is saved, and the parts matched with it are also reduced, saving costs. The spindle and the box are easier to machine and cost less, effectively ensuring the use function of the machine tool.

[0022] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel vertical machine tool spindle structure, comprising a spindle body (1), characterized in that: A bearing (2) is installed at the end of the main shaft body (1), and the bearing (2) includes an inner ring (201), the inner ring (201) is arranged at the end of the main shaft body (1), an outer ring (202) is arranged outside the inner ring (201), a plurality of rollers (3) are arranged on the side adjacent to the inner ring (201) and the outer ring (202), an isolation block (4) is arranged between the plurality of rollers (3), a V-groove raceway is arranged on the side adjacent to the inner ring (201) and the outer ring (202), and a total of four V-groove raceways are formed between the inner ring (201) and the outer ring (202).

2. A novel vertical machine tool spindle structure according to claim 1, characterized in that: The V-shaped groove raceway is arranged at 90 degrees, and the roller (3) is arranged in the V-shaped groove raceway at 90 degrees, and the roller (3) is in contact with the inner ring (201) and the outer ring (202).

3. A novel vertical machine tool spindle structure according to claim 2, characterized in that: The inner ring (201) and the outer ring (202) inside the bearing (2) adopt a split structure.

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