CN221088601U

CN221088601U - Independent main shaft of excircle mill

Info

Publication number: CN221088601U
Application number: CN202322955103.0U
Authority: CN
Inventors: 王士友
Original assignee: Wenling Shiyou Machinery Parts Factory
Current assignee: Wenling Shiyou Machinery Parts Factory
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-06-07
Anticipated expiration: 2033-11-02

Abstract

The utility model discloses an independent main shaft for external grinding, which belongs to the technical field of machining, and has the technical scheme that: the utility model discloses a novel spindle which comprises a spindle body and a spindle jacket, wherein the spindle body is rotatably arranged in the spindle jacket, oil seals are arranged at two ends of the spindle jacket, the end parts of the spindle body penetrate through the oil seals, a bearing is arranged at one end of the spindle body, the bearing is positioned between the spindle body and the spindle jacket, a positioning step is arranged on the inner side wall of the spindle jacket, the end face of the bearing is abutted against the step face of the positioning step, a jacket body is arranged in the spindle jacket, and the jacket body is positioned at one end, far away from the bearing, of the spindle jacket.

Description

Independent main shaft of excircle mill

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to an independent main shaft for external grinding.

Background

The cylindrical grinding machine is a grinding machine for grinding the outer circle of a workpiece, and is widely used. The cylindrical grinding machine is generally composed of main components such as a cast iron lathe bed, a workbench, a tailstock, a grinding wheel frame provided with a grinding wheel, a transverse feeding mechanism for controlling the size of a grinding workpiece, an electric appliance for controlling the movement of a moving part of the machine tool, a hydraulic device and the like. With the increase of the number of high-precision and high-hardness mechanical parts and the development of precision casting and precision forging processes, the performance and variety yield of the cylindrical grinding machine are continuously improved and increased.

The outer circle grinding main shaft is an important component part in the outer circle grinding machine, copper sleeves are arranged at two ends of a main shaft shell of the existing outer circle grinding main shaft to support the main shaft and reduce abrasion of the main shaft, but because the outer circle grinding main shaft is mainly driven in a motor belt transmission mode at present, the driving force of a motor is transmitted to the outer circle grinding main shaft through a driving belt, but because the driving belt needs to be tensioned, larger driving force is obtained, but radial force is generated on the outer circle grinding main shaft, the rotation precision of the outer circle grinding main shaft is easily affected by the radial force, and abrasion of the outer circle grinding main shaft is easily caused.

Disclosure of utility model

The utility model aims at solving the problems existing in the prior art, and provides an independent main shaft for external grinding, which aims at solving the technical problems that: how to ensure the centering precision of the outer circle grinding main shaft.

The technical aim of the utility model can be achieved by the following technical scheme: the utility model provides an independent main shaft of external grinding, includes main shaft body and main shaft overcoat, the main shaft body rotates to set up in the main shaft overcoat, the both ends of main shaft overcoat all are provided with the oil blanket, the tip of main shaft body passes the oil blanket, the one end of main shaft body is provided with the bearing, the bearing is located the main shaft body with between the main shaft overcoat, the inside wall of main shaft overcoat is provided with the location step, the terminal surface of bearing conflict in the step face of location step, be provided with the cover body in the main shaft overcoat, just the cover body is located the main shaft overcoat is kept away from the one end of bearing, the main shaft body wears to locate the cover body.

In the above-mentioned independent main shaft of outer circular grinding, the main shaft body is fixed with the inside wall of the bearing, the outside wall of the main shaft body is attached to the inside wall of the main shaft jacket.

In the above-mentioned independent main shaft of outer circle mill, set up inlet port and oil outlet on the main shaft overcoat, the inlet port with the oil outlet is linked together, the lateral wall of main shaft body is provided with the helicla flute, the inlet port is aimed at the helicla flute, just the helicla flute is located the inlet port with between the oil outlet.

In the above-mentioned independent main shaft of outer circle mill, a plurality of oil guiding grooves have been seted up to the inside wall of the cover body, a plurality of oil guiding grooves all with the inlet port is linked together, the intercommunicating pore has been seted up to the tip of main shaft overcoat, a plurality of oil guiding grooves all with the intercommunicating pore is linked together, the intercommunicating pore with the oil outlet is linked together.

In the above-mentioned independent main shaft of external grinding, the spiral groove is set up along the axis direction of main shaft body, and a plurality of oil guiding grooves are all seted up along the axis direction of main shaft overcoat.

In the above-mentioned independent main shaft of external grinding, the main shaft overcoat is close to the tip of cover body one end is provided with the oil collecting groove, the intercommunicating pore is located in the oil collecting groove, a plurality of lead the oil groove all extend to the oil collecting groove.

In the above-mentioned independent main shaft of outer cylindrical mill, the outside of main shaft overcoat is provided with the installation department, set up the mounting hole on the installation department.

In summary, compared with the prior art, the utility model has the following beneficial effects:

1. The main shaft body is positioned by matching the bearing with the positioning step, so that the main shaft body is centered by the bearing, the centering precision and the rotation precision of the main shaft body are guaranteed, the radial force generated by the motor belt transmission to the main shaft body is dispersed to the bearing, the influence of the radial force on the main shaft body is reduced, and the rotation precision of the main shaft body is prevented from being influenced by the radial force or the main shaft body is prevented from being worn.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic structural view of a spindle cover according to an embodiment;

FIG. 3 is a schematic view of another angular configuration of a spindle cover according to an embodiment;

Fig. 4 is a schematic structural diagram of a spindle body according to an embodiment.

Reference numerals: 1. a main shaft body; 2. a spindle jacket; 3. an oil seal; 4. a mounting hole; 5. a bearing; 6. positioning the step; 7. a sleeve body; 8. an oil inlet hole; 9. an oil outlet hole; 10. a spiral groove; 11. an oil guiding groove; 12. a communication hole; 13. an oil sump; 14. and a mounting part.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

An independent main shaft for external grinding is shown in fig. 1 to 4, and comprises a main shaft body 1 and a main shaft outer sleeve 2, wherein the main shaft body 1 is rotatably arranged in the main shaft outer sleeve 2.

The oil seals 3 are arranged at the two ends of the main shaft outer sleeve 2, and specifically, the oil seals 3 are arranged at the end parts of the main shaft outer sleeve 2 in a plugging manner, the end parts of the main shaft body 1 penetrate through the oil seals 3, oil leakage from the inside of the main shaft outer sleeve 2 to the outside is avoided through the oil seals 3, and external impurities or dust can be prevented from entering the inside of the main shaft outer sleeve 2.

One end of the main shaft body 1 is provided with a bearing 5, the bearing 5 is positioned between the main shaft body 1 and the main shaft outer sleeve 2, specifically, the main shaft body 1 is fixed with the inner side wall of the bearing 5, the outer side wall of the main shaft body 1 is attached to the inner side wall of the main shaft outer sleeve 2, so that the position stability of the bearing 5 is ensured, the main shaft body 1 is centered through the bearing 5, and the centering precision and the rotation precision of the main shaft body 1 are ensured.

The bearing 5 is disposed at one end of the main shaft body 1, so that radial force generated by the motor belt transmission to the main shaft body 1 is dispersed to the bearing 5, the influence of the radial force on the main shaft body 1 is reduced, and the influence on the rotation precision of the main shaft body 1 due to the radial force or the abrasion of the main shaft body 1 is avoided.

The inside wall of main shaft overcoat 2 is provided with location step 6, and the terminal surface of bearing 5 is contradicted in the step face of location step 6 to this axial positioning to bearing 5 is realized, and because main shaft body 1 is fixed with the inside wall of bearing 5, has consequently also realized the axial positioning to main shaft body 1, guarantees the stable in position of main shaft body 1 and bearing 5.

The sleeve body 7 is arranged in the main shaft sleeve 2, the sleeve body 7 is positioned at one end of the main shaft sleeve 2 far away from the bearing 5, the main shaft body 1 is arranged in the sleeve body 7 in a penetrating mode, preferably, the sleeve body 7 adopts a copper sleeve, and as other schemes, a tungsten steel sleeve can also be adopted.

The main shaft overcoat 2 is last to have seted up inlet port 8 and oil outlet 9, preferably, inlet port 8 is located the one end that main shaft overcoat 2 is close to bearing 5, preferably, oil outlet 9 has two, two oil outlet 9 all are located the one end that main shaft overcoat 2 is close to the cover body 7, two oil outlet 9 all are linked together with inlet port 8, the lateral wall of main shaft body 1 is provided with helical groove 10, helical groove 10 sets up along the axis direction of main shaft body 1, inlet port 8 aligns helical groove 10, and helical groove 10 is located between inlet port 8 and oil outlet 9, it is to be noted that, because set up helical groove 10 at the lateral wall of main shaft body 1, in the in-process that main shaft body 1 rotated, outside fluid is inhaled in main shaft overcoat 2 from inlet port 8, and form the direction of pressure with fluid towards oil outlet 9, until the fluid flows out from outlet port 9.

The inside wall of the sleeve body 7 is provided with a plurality of oil guide grooves 11, the plurality of oil guide grooves 11 are all communicated with the oil inlet hole 8, the plurality of oil guide grooves 11 are uniformly distributed along the circumference of the sleeve body 7, the plurality of oil guide grooves 11 are all arranged along the axis direction of the main shaft sleeve 2, the oil is guided through the plurality of oil guide grooves 11, the flowing resistance of the oil is reduced, the flowing of the oil is smoother, the blocking caused by accumulation of oil impurities is avoided, the oil is uniformly distributed along the circumference of the sleeve body 7, and the oil is uniformly distributed along the circumference of the sleeve body 7, so that the lubricating effect is better.

The tip of main shaft overcoat 2 has seted up intercommunicating pore 12, and preferably, intercommunicating pore 12 has two, and a plurality of oil grooves 11 are all linked together with two intercommunicating pore 12, and two intercommunicating pore 12 all are linked together with oil outlet 9, and the tip that main shaft overcoat 2 is close to the cover body 7 one end is provided with oil collecting groove 13, and intercommunicating pore 12 is located oil collecting groove 13, and a plurality of oil grooves 11 all extend to oil collecting groove 13 to this will be through a plurality of oil grooves 11's fluid is concentrated and is collected oil collecting groove 13, flows into in the intercommunicating pore 12 again.

During the process of conveying the oil sucked into the spindle housing 2 from the oil inlet hole 8 toward the oil outlet hole 9, the oil flows through the plurality of oil guide grooves 11, flows into the oil collecting groove 13 after passing through the oil guide grooves 11, flows into the communication hole 12 again, finally flows out of the oil outlet hole 9, and when the spindle body 1 rotates, the oil outside the spindle housing 2 is continuously sucked into the spindle housing 2 from the oil inlet hole 8, and the oil in the spindle housing 2 continuously flows out of the oil outlet hole 9, so that the oil can continuously fully lubricate all parts.

It should be further noted that, the oil sucked into the main shaft housing 2 from the oil inlet 8 fully lubricates the main shaft body 1 during the process of conveying toward the oil outlet 9, and forms an oil film, which supports the main shaft body 1, so that friction between the main shaft body 1 and other components can be effectively reduced, abrasion is reduced, and service life of the independent main shaft for external grinding is prolonged.

The outside of main shaft overcoat 2 is provided with installation department 14, and preferably, installation department 14 has two, and installation department 14 and main shaft overcoat 2 an organic whole set up, has seted up mounting hole 4 on the installation department 14, can realize the installation to main shaft overcoat 2 through the cooperation of fastener such as bolt and mounting hole 4.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model; those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides an independent main shaft of excircle mill, includes main shaft body (1) and main shaft overcoat (2), its characterized in that: the novel spindle comprises a spindle body (1), wherein the spindle body (1) is rotatably arranged in a spindle jacket (2), oil seals (3) are arranged at two ends of the spindle jacket (2), the end part of the spindle body (1) penetrates through the oil seals (3), a bearing (5) is arranged at one end of the spindle body (1), the bearing (5) is located between the spindle body (1) and the spindle jacket (2), a positioning step (6) is arranged on the inner side wall of the spindle jacket (2), the end face of the bearing (5) is abutted to the step surface of the positioning step (6), a sleeve body (7) is arranged in the spindle jacket (2), and the sleeve body (7) is located at one end, far away from the bearing (5), of the spindle jacket (2), and the spindle body (1) is penetrated through the sleeve body (7).

2. The independent spindle for external grinding according to claim 1, wherein: the main shaft body (1) is fixed with the inner side wall of the bearing (5), and the outer side wall of the main shaft body (1) is abutted against the inner side wall of the main shaft jacket (2).

3. The independent spindle for external grinding according to claim 1, wherein: the novel oil feeding device is characterized in that an oil inlet (8) and an oil outlet (9) are formed in the main shaft outer sleeve (2), the oil inlet (8) is communicated with the oil outlet (9), a spiral groove (10) is formed in the outer side wall of the main shaft body (1), the oil inlet (8) is aligned with the spiral groove (10), and the spiral groove (10) is located between the oil inlet (8) and the oil outlet (9).

4. A cylindrical independent spindle according to claim 3, wherein: the oil guiding device is characterized in that a plurality of oil guiding grooves (11) are formed in the inner side wall of the sleeve body (7), the oil guiding grooves (11) are communicated with the oil inlet holes (8), communication holes (12) are formed in the end portion of the main shaft sleeve (2), the oil guiding grooves (11) are communicated with the communication holes (12), and the communication holes (12) are communicated with the oil outlet holes (9).

5. The independent spindle for external grinding of claim 4, wherein: the spiral groove (10) is arranged along the axial direction of the main shaft body (1), and the plurality of oil guide grooves (11) are all arranged along the axial direction of the main shaft outer sleeve (2).

6. The independent spindle for external grinding of claim 4, wherein: the end part of the main shaft outer sleeve (2) close to one end of the sleeve body (7) is provided with an oil collecting groove (13), the communication hole (12) is positioned in the oil collecting groove (13), and a plurality of oil guide grooves (11) extend to the oil collecting groove (13).

7. The independent spindle for external grinding according to claim 1, wherein: the outer side of the main shaft outer sleeve (2) is provided with an installation part (14), and the installation part (14) is provided with an installation hole (4).