Woodworking electric spindle

Abstract

This utility model relates to the field of electric spindle technology, specifically a woodworking electric spindle. The utility model includes a spindle core, a motor rotor mounted on the arc surface of the spindle core, a motor stator mounted on the arc surface of the motor rotor, a housing on the arc surface of the motor stator, a front bearing seat fixedly connected to one side of the housing, a front bearing assembly fixedly connected to the arc surface of the spindle core, a positioning ring slidably connected to the arc surface of the spindle core, a rear bearing seat fixedly connected to one side of the housing, a rear bearing assembly mounted on the surface of the rear bearing seat, a tie rod system fixedly connected to one end of the spindle core, and a rear pressure cap fixedly connected to the arc surface of the tie rod system. This invention solves the problems of thin-walled tapered holes at the front end of the spindle core leading to cracking during use, or spring fatigue in the internal tie rod system causing tension loss, and the use of long mounting sleeves inside the motor rotor resulting in poor spindle precision and reduced equipment lifespan.

Description

Technical Field

[0001] This utility model relates to the field of electric spindle technology, and in particular to a woodworking electric spindle. Background Technology

[0002] In the woodworking industry, the electric spindle, as a core power component, directly affects the precision and efficiency of wood cutting, milling, carving, and other processing. With the booming development of industries such as custom furniture and solid wood handicrafts, woodworking is moving towards high speed and high precision, which puts forward higher requirements for the performance of electric spindles. However, the original design structure has a thinner tapered hole at the front end of the spindle core, which is prone to cracking. The internal tie rod spring is prone to fatigue, resulting in tension loss. The use of a long mounting sleeve inside the rotor may lead to poor spindle precision. Furthermore, the lack of an air seal at the front end of the spindle makes it easy for sawdust to contaminate the inside of the spindle, causing the spindle to jam.

[0003] The inventors believe that the following defects often exist: the wall thickness of the tapered hole at the front end of the spindle is too thin, which may cause cracking during use; or the spring fatigue of the internal tie rod system may lead to loss of tension; at the same time, the use of a long mounting sleeve inside the motor rotor may lead to poor spindle accuracy, thereby reducing the service life of the equipment. Therefore, a woodworking electric spindle is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing technologies, such as thin wall thickness of the tapered hole at the front end of the shaft core, which leads to cracking during use, or fatigue of the springs in the internal tie rod system, resulting in loss of tension, and poor spindle accuracy due to the use of a long mounting sleeve inside the motor rotor. Therefore, a woodworking electric spindle is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a woodworking electric spindle, comprising a spindle core, a motor rotor mounted on the arc surface of the spindle core, a motor stator mounted on the arc surface of the motor rotor, a housing provided on the arc surface of the motor stator, a front bearing seat fixedly connected to one side of the housing, a front bearing assembly fixedly connected to the arc surface of the spindle core, a positioning ring slidably connected to the arc surface of the spindle core, a rear bearing seat fixedly connected to one side of the housing, a rear bearing assembly mounted on the surface of the rear bearing seat, a tie rod system fixedly connected to one end of the spindle core, a rear pressure cap fixedly connected to the arc surface of the tie rod system, a cylinder mounting seat fixedly connected to one side of the rear bearing seat, and a cylinder system fixedly connected to one side of the cylinder mounting seat.

[0006] The aforementioned components achieve the following effects: they improve the service life and stability of the equipment, prevent cracking during use due to the thin wall of the tapered hole at the front end of the shaft core, or fatigue of the internal tie rod system springs leading to tension loss, and address the issue of poor spindle precision caused by the use of a long mounting sleeve inside the motor rotor, thus reducing the service life of the equipment. In conclusion, they improve the stability of the equipment during use.

[0007] Preferably, a front pressure cover is fixedly connected to one side of the front bearing housing, and the arc surface of the shaft core of the front pressure cover is slidably connected.

[0008] The effect achieved by the above components is that the front pressure cover prevents wood chips from entering the spindle, thus avoiding the situation where wood chips enter between the housing and the spindle core during use, which could cause the spindle core to jam.

[0009] Preferably, a water jacket is fixedly connected to the arc surface of the motor stator, and the arc surface of the water jacket is slidably connected to the housing.

[0010] The effect achieved by the above components is that the water jacket cools the housing and the motor stator.

[0011] Preferably, a support plate is fixedly connected to the arc surface of the housing, a drive rod is threaded into the support plate, and a protective plate is rotatably connected to one end of the drive rod.

[0012] The effect achieved by the above-mentioned components is to protect the water jacket, preventing dust and impurities from entering the water jacket and causing the liquid inside the water jacket to become turbid, thus making it difficult to cool.

[0013] Preferably, a rubber pad is fixedly connected to one side of the protective plate, and the rubber pad is slidably connected to the arc surface of the shell.

[0014] The effect achieved by the above components is to seal the water jacket while reducing frictional damage to the shell.

[0015] Preferably, one end of the drive rod is fixedly connected to a handle, and the surface of the handle is provided with a plurality of anti-slip protrusions.

[0016] The effects achieved by the above components are as follows: the handle facilitates operation for the staff, provides a stable point of leverage for the staff, and the anti-slip protrusions on the handle increase friction with the staff's hands.

[0017] Preferably, a positioning rod is fixedly connected to the side of the protective plate near the drive rod, and the arc surface of the positioning rod is slidably connected to the support plate.

[0018] The effect achieved by the above components is that the positioning rod restricts the protective plate from moving and swaying as it follows the drive rod, so as to provide stable and accurate guidance for the protective plate.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] This invention achieves the effects of improving equipment service life and stability, avoiding the situation where the wall thickness of the tapered hole at the front end of the shaft core is too thin and cracks occur during use, or the spring fatigue of the internal tie rod system leads to tension loss, and the use of a long mounting sleeve inside the motor rotor causes poor spindle precision, thus reducing the service life of the equipment. This invention improves the stability of the equipment during use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 In this utility model Figure 1 A sectional view;

[0023] Figure 3 This is a schematic diagram of the support plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the rubber pad in this utility model.

[0025] Legend: 1. Shaft core; 2. Motor rotor; 3. Motor stator; 4. Housing; 5. Front bearing housing; 6. Front bearing assembly; 7. Positioning ring; 8. Rear bearing housing; 9. Rear bearing assembly; 10. Tie rod system; 11. Cylinder mounting base; 12. Rear pressure cover; 13. Cylinder system; 14. Water jacket; 15. Front pressure cover; 16. Support plate; 17. Drive rod; 18. Protective plate; 19. Handle; 20. Rubber pad; 21. Positioning rod. Detailed Implementation

[0026] Reference Figure 1-4As shown, this utility model provides a technical solution: a woodworking electric spindle, including a spindle core 1, a motor rotor 2 mounted on the arc surface of the spindle core 1, a motor stator 3 mounted on the arc surface of the motor rotor 2, a housing 4 provided on the arc surface of the motor stator 3, a front bearing seat 5 fixedly connected to one side of the housing 4, a front bearing assembly 6 fixedly connected to the arc surface of the spindle core 1, a positioning ring 7 slidably connected to the arc surface of the spindle core 1, a rear bearing seat 8 fixedly connected to one side of the housing 4, a rear bearing assembly 9 mounted on the surface of the rear bearing seat 8, a pull rod system 10 fixedly connected to one end of the spindle core 1, a rear pressure cover 12 fixedly connected to the arc surface of the pull rod system 10, a cylinder fixing seat 11 fixedly connected to one side of the rear bearing seat 8, and a cylinder system fixedly connected to one side of the cylinder fixing seat 11. 13. After being fixed to the machine tool table via the flange mounting surface of the housing 4, the power supply is connected to provide power to the spindle. An encoder signal is connected to detect the spindle rotation signal, and a tool release / holding signal is connected to detect the spindle's tool release / holding status. The machine tool system performs closed-loop control of the spindle's machining status based on signal feedback. This equipment, through redesign and development, has thickened the front tapered hole of the shaft core 1, changed the spring type of the internal tie rod system 10, and modified the installation method of the internal motor rotor 2. This achieves the effect of improving the equipment's service life and stability, avoiding the thin wall thickness of the front tapered hole of the shaft core 1, which could lead to cracking during use, or the fatigue of the internal tie rod system 10 springs, resulting in tension loss. Additionally, the use of a long mounting sleeve inside the motor rotor 2 could cause poor spindle accuracy. This reduces the equipment's lifespan and improves its stability during use. A front pressure cover 15 is fixedly connected to one side of the front bearing housing 5. The arc surface of the shaft core 1 of the front pressure cover 15 is slidably connected. The front pressure cover 15 effectively prevents sawdust from entering the spindle and causing the shaft core 1 to jam. A water jacket 14 is fixedly connected to the arc surface of the motor stator 3. The arc surface of the water jacket 14 is slidably connected to the housing 4. The water jacket 14 effectively cools the housing 4 and the motor stator 3. A support plate 16 is fixedly connected to the arc surface of the housing 4. A drive rod 17 is threaded into the support plate 16. One end of the drive rod 17 is rotatably connected to a protective plate 18, which protects the water jacket. The protective plate 14 prevents dust and impurities from entering the water jacket 14, which would cause the liquid inside the water jacket 14 to become turbid and make cooling difficult. A rubber pad 20 is fixedly connected to one side of the protective plate 18. The rubber pad 20 slides in contact with the arc surface of the shell 4, achieving a sealing effect on the water jacket 14 and reducing frictional damage to the shell 4. A handle 19 is fixedly connected to one end of the drive rod 17. The surface of the handle 19 has several anti-slip protrusions, which facilitates operation by the operator and provides a stable point of leverage. The anti-slip protrusions of the handle 19 increase friction with the operator's hand. A positioning rod 21 is fixedly connected to the side of the protective plate 18 near the drive rod 17.The arc surface of the positioning rod 21 is slidably connected to the support plate 16. The positioning rod 21 effectively limits the displacement and swaying of the protective plate 18 following the drive rod 17, thus providing stable and accurate guidance for the protective plate 18.

[0027] Working principle: After the housing 4 is fixed to the machine tool table via the flange mounting surface, the power supply is connected to power the spindle. An encoder signal is connected to detect the spindle rotation status, and a tool release / holding signal is connected to monitor the tool release / holding status of the spindle. The machine tool system performs closed-loop control of the spindle machining process based on these signal feedbacks. During operation, the spindle core 1 rotates under the electromagnetic action of the motor rotor 2 and motor stator 3, thereby driving the tool to perform cutting operations. The thickened tapered hole at the front end of the spindle core 1 enhances the structural strength and prevents cracking during use; the optimized spring-type tie rod system 10 reduces tension loss; and the improved installation method of the motor rotor 2 improves the spindle accuracy, jointly ensuring the service life and operational stability of the equipment. The front pressure cover 15 slides with the spindle core 1, effectively preventing wood chips from entering the housing. The gap between the 4 and the shaft core 1 prevents the shaft core 1 from jamming. After the water jacket 14 outside the motor stator 3 is slidably installed on the housing 4, it cools the housing 4 and the motor stator 3 through circulating liquid to maintain the normal operating temperature of the equipment. When it is necessary to protect the water jacket 14, the operator turns the handle 19, which drives the drive rod 17 to move threadedly in the support plate 16. The protective plate 18 at one end of the drive rod 17 moves accordingly. The positioning rod 21 slides in the support plate 16, restricting the protective plate 18 from rotating with the drive rod 17, ensuring that the protective plate 18 moves smoothly and covers the water jacket 14. The rubber pad 20 on one side of the protective plate 18 is tightly attached to the housing 4, which can seal the water jacket 14 to prevent dust and impurities from entering, and reduce frictional damage to the housing 4, thus ensuring the efficient and stable operation of the woodworking electric spindle in all aspects.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A woodworking electric spindle comprising a shaft core (1), characterized in that: The motor rotor (2) is mounted on the arc surface of the shaft core (1), the motor stator (3) is mounted on the arc surface of the motor rotor (2), the motor stator (3) is provided with a housing (4) on the arc surface, a front bearing seat (5) is fixedly connected to one side of the housing (4), a front bearing assembly (6) is fixedly connected to the arc surface of the shaft core (1), a positioning ring (7) is slidably connected to the arc surface of the shaft core (1), a rear bearing seat (8) is fixedly connected to one side of the housing (4), a rear bearing assembly (9) is mounted on the surface of the rear bearing seat (8), a tie rod system (10) is fixedly connected to one end of the shaft core (1), a rear pressure cover (12) is fixedly connected to the arc surface of the tie rod system (10), a cylinder fixing seat (11) is fixedly connected to one side of the rear bearing seat (8), and a cylinder system (13) is fixedly connected to one side of the cylinder fixing seat (11).

2. A wood working electric spindle according to claim 1, characterized in that: A front pressure cover (15) is fixedly connected to one side of the front bearing housing (5), and the arc surface of the shaft core (1) of the front pressure cover (15) is slidably connected.

3. A wood working electric spindle according to claim 1, characterized in that: The arc surface of the motor stator (3) is fixedly connected to a water jacket (14), and the arc surface of the water jacket (14) is slidably connected to the housing (4).

4. The electric spindle for wood working according to claim 1, characterized in that: A support plate (16) is fixedly connected to the arc surface of the housing (4). A drive rod (17) is threaded into the support plate (16). A protective plate (18) is rotatably connected to one end of the drive rod (17).

5. A wood working electric spindle according to claim 4, characterized in that: A rubber pad (20) is fixedly connected to one side of the protective plate (18), and the rubber pad (20) is slidably connected to the arc surface of the shell (4).

6. A wood working electric spindle according to claim 4, characterized in that: One end of the drive rod (17) is fixedly connected to a handle (19), and the surface of the handle (19) is provided with several anti-slip protrusions.

7. A wood working electric spindle according to claim 4, characterized in that: A positioning rod (21) is fixedly connected to the side of the protective plate (18) near the drive rod (17), and the arc surface of the positioning rod (21) is slidably connected to the support plate (16).

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