A planetary gear driven omnidirectional enveloping machine tool grinding shaft device

Abstract

This utility model discloses a planetary gear-driven omnidirectional enveloping machine tool shaft grinding device, relating to the field of workpiece grinding technology. The utility model includes a mounting base, with a central gear rotatably connected at the center of the bottom interior of the mounting base. Planetary gears are rotatably connected to the outer side of the central gear inside the bottom interior of the mounting base. A motor is fixedly mounted above the central gear inside the bottom interior of the mounting base, and the motor is driven by the central gear. A mounting shaft is fixedly mounted at the bottom end of each planetary gear, and a grinding roller is fitted onto the outer side of the mounting shaft. This utility model can envelop and rotate the surface of a workpiece for grinding. While driving the workpiece to rotate, it also allows the grinding rollers on the outer side of the workpiece to rotate in the opposite direction, thereby increasing the relative speed between the grinding rollers and the workpiece surface, improving grinding efficiency. Simultaneously, during the grinding process, the outer side of the workpiece is subjected to uniform force, preventing workpiece deformation.

Description

Technical Field

[0001] This utility model relates to the field of parts grinding technology, specifically to a planetary gear driven omnidirectional enveloping machine tool grinding shaft device. Background Technology

[0002] In industrial products, shaft parts are used in the maintenance of parts processed by one or more CNC machine tools. They are one of the typical parts frequently encountered in hardware accessories. They are mainly used to support transmission components, transmit torque and bear loads. During the processing of shaft parts, in order to achieve a certain smoothness, the surface of the shaft parts needs to be polished by machine tools.

[0003] Existing machine tool shaft grinding devices all use a method of driving the shaft to rotate and then attaching a grinding disc to one side for grinding. During the grinding process, the side of the shaft with the grinding disc attached is subjected to force, which makes the shaft prone to deformation. Furthermore, the relative speed between the grinding disc and the surface of the shaft depends solely on the rotation of the driving shaft, which means that the grinding efficiency needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned above, such as the shaft part being subjected to force on the side attached to the grinding disc during the grinding process, which makes the shaft part prone to deformation, and the grinding disc covering a small area, and the relative speed between the grinding disc and the surface of the shaft part relying solely on the rotation of the shaft part, which makes grinding efficiency need to be improved. This utility model provides a planetary gear driven all-around enveloping machine tool shaft grinding device.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A planetary gear-driven omnidirectional enveloping machine tool shaft grinding device includes a mounting base. A central gear is rotatably connected to the center of the bottom interior of the mounting base. Planetary gears are rotatably connected to the outer side of the central gear inside the bottom interior of the mounting base. A motor is fixedly mounted above the central gear inside the bottom interior of the mounting base, and the motor is driven by the central gear. A mounting shaft is fixedly mounted at the bottom end of each planetary gear. A grinding roller is fitted to the outer side of the mounting shaft. A cylindrical cover is fixedly connected to the bottom end of the mounting base. A turntable is fixedly mounted at the bottom end of the central gear.

[0006] Furthermore, the mounting base is fixedly installed to the machine head on the top of the machine tool by bolts, and the machine head drives the mounting base to move.

[0007] Furthermore, the planetary gears are evenly distributed on the outside of the central gear and all mesh with the central gear. Therefore, when the central gear rotates, it can drive the outer planetary gears to rotate, and the rotation direction of the planetary gears is opposite to the rotation direction of the central gear.

[0008] Furthermore, the cylindrical cover is located outside the grinding roller, and the downward extension length of the grinding roller is greater than the downward extension length of the cylindrical cover. This not only protects the connection between the grinding roller and the planetary gear, but also facilitates the installation and replacement of the grinding roller.

[0009] Furthermore, the bottom of the turntable is uniformly provided with grooves to increase the friction between the turntable and the end face of the workpiece.

[0010] Furthermore, a base is provided below the mounting seat, and a three-jaw chuck is rotatably connected to the top of the base, with the workpiece clamped at the center of the top of the three-jaw chuck.

[0011] Furthermore, the base is fixedly installed to the machining platform at the bottom of the machine tool by bolts.

[0012] Furthermore, a heat dissipation groove is provided on the outer side of the motor in the middle of the mounting base to facilitate heat dissipation during motor use.

[0013] The beneficial effects of this utility model are as follows: This invention, through the design of the mounting shaft and grinding roller inside the bottom of the mounting base, utilizes the movement of the driving mounting base to allow the grinding roller to wrap around the workpiece. Simultaneously, the meshing of the central gear and planetary gear between the turntable and the mounting shaft drives the workpiece to rotate while simultaneously causing the grinding roller to rotate in the opposite direction on the outside of the workpiece. This increases the relative speed between the grinding roller and the workpiece surface, thereby improving grinding efficiency. Furthermore, during the grinding process, the force on the outside of the workpiece is uniform, preventing workpiece deformation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention when the workpiece is not sleeved; Figure 3 This is a schematic diagram of the three-dimensional structure of the grinding mechanism of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the grinding mechanism of this utility model. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the grinding roller in the grinding mechanism of this utility model during installation; Figure 6This is a cross-sectional three-dimensional structural diagram of the grinding mechanism of this utility model; Figure 7 This is a schematic diagram of the internal three-dimensional structure of the mounting base of this utility model.

[0015] Reference numerals in the attached drawings: 1. Mounting base; 2. Central gear; 3. Planetary gear; 4. Motor; 5. Mounting shaft; 6. Grinding roller; 7. Cylindrical cover; 8. Turntable; 9. Base; 10. Three-jaw chuck; 11. Workpiece; 12. Heat dissipation groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0017] A preferred embodiment of the planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to the present invention will be described in detail below, such as... Figures 1-7 As shown, a planetary gear-driven omnidirectional enveloping machine tool shaft grinding device includes a mounting base 1. A central gear 2 is rotatably connected to the center of the bottom interior of the mounting base 1. The mounting base 1 is fixedly mounted to the machine head on the top of the machine tool by bolts. The machine head drives the mounting base 1 to move. Planetary gears 3 are evenly rotatably connected to the outer side of the central gear 2 inside the bottom interior of the mounting base 1. A motor 4 is fixedly mounted above the central gear 2 inside the bottom interior of the mounting base 1, and the motor 4 is connected to the central gear 2 for transmission. The planetary gears 3 are evenly distributed on the outer side of the central gear 2 and all mesh with the central gear 2. Therefore, when the central gear 2 rotates, it can drive the outer planetary gears 3 to rotate, and the rotation direction of the planetary gears 3 is opposite to the rotation direction of the central gear 2. A heat dissipation groove 12 is provided on the outer side of the motor 4 in the middle of the mounting base 1 to facilitate heat dissipation during the use of the motor 4.

[0018] The bottom end of each planetary gear 3 is fixedly mounted with a mounting shaft 5. A grinding roller 6 is fitted to the outer side of the mounting shaft 5. A cylindrical cover 7 is fixedly connected to the bottom end of the mounting base 1. The cylindrical cover 7 is located outside the grinding roller 6, and the downward extension length of the grinding roller 6 is greater than the downward extension length of the cylindrical cover 7. This can protect the connection between the grinding roller 6 and the planetary gear 3, and also facilitate the installation and replacement of the grinding roller 6.

[0019] A turntable 8 is fixedly installed at the bottom of the center gear 2. The bottom of the turntable 8 is evenly provided with grooves to increase the friction between the turntable 8 and the end face of the workpiece 11.

[0020] A base 9 is provided below the mounting base 1. The base 9 is fixedly installed to the machining platform at the bottom of the machine tool by bolts. A three-jaw chuck 10 is rotatably connected to the top of the base 9. The workpiece 11 is clamped at the center of the top of the three-jaw chuck 10.

[0021] The working principle of this utility model is as follows: In use, the base 9 is fixedly installed on the machining platform at the bottom of the machine tool with bolts, and then the three-jaw chuck 10 on the top of the base 9 is used to fix and limit the workpiece 11, thereby completing the installation of the workpiece 11.

[0022] Then, the mounting base 1 is fixed to the bottom of the machine head on the top of the machine tool with bolts. The machine head drives the mounting base 1 to move, so that the turntable 8 at the bottom of the mounting base 1 is aligned with the workpiece 11. Then, the mounting base 1 is driven to move downward, so that the bottom end of the turntable 8 is pressed into contact with the top end of the workpiece 11, while the grinding roller 6 wraps around the outside of the top of the workpiece 11.

[0023] Then start the motor 4, which drives the turntable 8 to rotate. In conjunction with the three-jaw chuck 10 at the top of the base 9, the turntable 8 and the workpiece 11 of the three-jaw chuck 10 can rotate.

[0024] During the rotation of workpiece 11, motor 4 can also drive the central gear 2 to rotate. During the rotation of the central gear 2, the planetary gear 3 can be driven to rotate by meshing with the central gear 2 on the outside. The direction of rotation of the planetary gear 3 is opposite to that of the central gear 2. Therefore, the planetary gear 3 can drive the grinding roller 6 to rotate through the mounting shaft 5. The direction of rotation of the grinding roller 6 is opposite to that of the workpiece 11, thereby enabling more efficient grinding of the surface of workpiece 11.

[0025] By utilizing the limiting sliding connection between the grinding roller 6 and the mounting shaft 5, different diameter grinding rollers 6 can be replaced according to the different diameters of the workpiece 11 to be ground, thereby grinding workpieces 11 of different diameters.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A planetary gear-driven omnidirectional enveloping machine tool shaft grinding device, comprising a mounting base (1), characterized in that, A central gear (2) is rotatably connected to the center of the bottom of the mounting base (1). Planetary gears (3) are rotatably connected to the outer side of the central gear (2) inside the bottom of the mounting base (1). A motor (4) is fixedly installed above the central gear (2) inside the bottom of the mounting base (1), and the motor (4) is connected to the central gear (2) for transmission. A mounting shaft (5) is fixedly installed at the bottom of each of the planetary gears (3). A grinding roller (6) is fitted to the outer side of the mounting shaft (5). A cylindrical cover (7) is fixedly connected to the bottom of the mounting base (1). A turntable (8) is fixedly installed at the bottom of the central gear (2).

2. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, The mounting base (1) is fixedly installed to the machine head on the top of the machine tool by bolts.

3. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, The planetary gears (3) are evenly distributed on the outside of the central gear (2) and all mesh with the central gear (2).

4. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, The cylindrical cover (7) is located outside the grinding roller (6), and the downward extension length of the grinding roller (6) is greater than the downward extension length of the cylindrical cover (7).

5. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, The bottom of the turntable (8) is uniformly provided with grooves.

6. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, A base (9) is provided below the mounting base (1), and a three-jaw chuck (10) is rotatably connected to the top of the base (9). The workpiece (11) is clamped at the center of the top of the three-jaw chuck (10).

7. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 6, characterized in that, The base (9) is fixedly installed to the machining platform at the bottom of the machine tool by bolts.

8. The planetary gear-driven omnidirectional enveloping machine tool shaft grinding device according to claim 1, characterized in that, A heat dissipation groove (12) is provided on the outer side of the motor (4) in the middle of the mounting base (1).

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