A milling spindle structure

Abstract

The utility model relates to milling spindle technical field, and disclose a kind of milling spindle structure, including tool changing cylinder, the outer wall of tool changing cylinder is equipped with swivel joint, the outer wall of tool changing cylinder is connected with proximity switch, the outer wall of tool changing cylinder is connected with lifting ring, the outer wall of tool changing cylinder is equipped with encoder, the outer wall of tool changing cylinder is equipped with motor, the outer wall of motor is equipped with water inlet, the outer wall of motor is equipped with water outlet, the outer wall of motor is connected with main shaft body, this milling spindle structure, through the mutual cooperation of main shaft body, inner shaft and motor on device, so that device is not same with traditional equipment, utilize motor and post on main shaft body, make the direct connection of main shaft body and motor as a whole, and utilize motor directly to provide power for main shaft body, and make the inner shaft in the inner cavity of main shaft body rotate, to avoid the power attenuation from the limit speed power provided by motor, avoid power energy loss on the structure such as transmission belt.

Description

Technical Field

[0001] This utility model relates to the field of milling spindle technology, specifically a milling spindle structure. Background Technology

[0002] The selection and design of milling spindle structure should be based on a comprehensive consideration of specific machining requirements, material properties and equipment performance; selecting an appropriate milling spindle can greatly improve machining efficiency and accuracy.

[0003] In existing milling spindle structures, the traditional milling spindle is connected to the spindle motor via a pulley. When the motor uses a belt to transmit power at its maximum speed, the power energy decreases during transmission due to the belt, resulting in some energy loss. Therefore, a more efficient spindle structure design is needed to avoid energy loss during transmission. Furthermore, in the original device, the motor and spindle structure need to be installed separately. When the motor is directly connected to the milling spindle, the installation structure of the device can be simplified, avoiding problems such as structural complexity and installation difficulties. Therefore, a milling spindle structure that solves the above problems is needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a milling spindle structure that features direct spindle connection, no torque loss, and easy installation, thus solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a milling spindle structure, including a tool-changing cylinder, a rotary joint installed on the outer wall of the tool-changing cylinder, a proximity switch connected to the outer wall of the tool-changing cylinder, a lifting ring connected to the outer wall of the tool-changing cylinder, an encoder installed on the outer wall of the tool-changing cylinder, a motor installed on the outer wall of the tool-changing cylinder, a water inlet provided on the outer wall of the motor, a water outlet provided on the outer wall of the motor, a spindle body connected to the outer wall of the spindle body, a mounting flange connected to the outer wall of the mounting flange, a shaft head connected to the inner wall of the rotary joint, a tool drawbar connected to the inner wall of the spindle body, and an intermediate tool drawer structure sleeved on the inner wall of the spindle body.

[0006] As a preferred embodiment of this utility model, a data line is connected to the outer wall of the proximity switch, and the other end of the data line is connected to a power source.

[0007] As a preferred embodiment of this utility model, the number of lifting rings is two, and the two lifting rings are respectively disposed on the outer walls of the knife-cutting cylinder and the motor.

[0008] As a preferred embodiment of this utility model, both the inlet and outlet are connected to the inner cavity of the motor, and the inner cavity of the motor is provided with a cooling structure.

[0009] As a preferred embodiment of this utility model, the inner cavity of the main shaft is movably fitted with an inner shaft, and the inner shaft is connected to the motor.

[0010] As a preferred embodiment of this utility model, the inner cavity of the shaft head is provided with a tool holder opening, and the tool holder opening is in the shape of a conical opening.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This milling spindle structure differs from traditional equipment due to the coordinated use of the spindle body, inner shaft, and motor. The motor is mounted on the spindle body, making the direct connection between the spindle body and the motor an integral unit. The motor directly provides power to the spindle body and rotates the inner shaft in the spindle body cavity. This prevents the power provided by the motor at its maximum speed from being attenuated and avoids power energy loss caused by transmission belts or other structures.

[0013] 2. The milling spindle structure, through the cooperation of the lifting ring, the tool-changing cylinder, and the motor, allows the rotary joint and spindle body on the device to be installed on the outer wall of the tool-changing cylinder and the motor. Each of the outer walls of the tool-changing cylinder and the motor is connected to a lifting ring, so that the entire device can be installed using only two lifting rings, thereby simplifying the installation process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the main shaft of this utility model;

[0017] Figure 4 This is a schematic diagram of the inner shaft structure of this utility model.

[0018] In the diagram: 1. Tool cylinder; 2. Rotary joint; 3. Proximity switch; 4. Lifting ring; 5. Encoder; 6. Motor; 7. Water inlet; 8. Water outlet; 9. Main spindle; 10. Mounting flange; 11. Shaft head; 12. Tool drawbar; 13. Tool puller structure; 14. Inner shaft; 15. Tool holder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A milling spindle structure includes a tool changer cylinder 1, a rotary joint 2 mounted on the outer wall of the tool changer cylinder 1, a proximity switch 3 connected to the outer wall of the tool changer cylinder 1, a lifting ring 4 connected to the outer wall of the tool changer cylinder 1, an encoder 5 mounted on the outer wall of the tool changer cylinder 1, a motor 6 mounted on the outer wall of the tool changer cylinder 1, a water inlet 7 and an outlet 8 on the outer wall of the motor 6, a spindle body 9 connected to the outer wall of the spindle body 9, a mounting flange 10 connected to the outer wall of the mounting flange 10, a shaft head 11 connected to the outer wall of the mounting flange 10, a tool drawbar 12 connected to the inner wall of the rotary joint 2, and an intermediate tool drawbar structure 13 sleeved on the inner wall of the spindle body 9. Through the mutual cooperation of the encoder 5 and the spindle body 9, the encoder 5 controls the rotation angle and rotation speed of the spindle body 9, and the spindle body 9 is positioned at the correct tool change angle by controlling the angle.

[0021] In a preferred embodiment, a data line is connected to the outer wall of the proximity switch 3, and the other end of the data line is connected to a power source. By connecting the data line to the outer wall of the proximity switch 3 on the device, the proximity switch 3 on the device is mounted on the outer wall of the knife-cutting cylinder 1, and the other end of the proximity switch 3 is connected to the power source. The power source connected to the proximity switch 3 is signal power and is only used for detection purposes.

[0022] The proximity switch 3 is used to detect the position of the piston in the cutter cylinder 1 to determine whether the cutter release and cutter pull-out actions have been completed.

[0023] In a preferred embodiment, there are two lifting rings 4, and the two lifting rings 4 are respectively disposed on the outer walls of the knife-removing cylinder 1 and the motor 6. By using the two lifting rings 4 on the device, the device can be installed by using the lifting rings 4 on the outer walls of the knife-removing cylinder 1 and the motor 6, so that the device structure based on the knife-removing cylinder 1 and the motor 6 can be installed stably.

[0024] In a preferred embodiment, both the inlet 7 and the outlet 8 are connected to the inner cavity of the motor 6, and the inner cavity of the motor 6 is provided with a cooling structure. Since both the inlet 7 and the outlet 8 of the device are connected to the inner cavity of the motor 6, the cooling structure provided in the inner cavity of the motor 6 of the device uses the water entering through the inlet 7 for cooling and discharges it outward from the outlet 8, so that the motor 6 of the device can be cooled down during continuous operation.

[0025] In a preferred embodiment, an inner shaft 14 is movably sleeved in the inner cavity of the main shaft body 9, and the inner shaft 14 is connected to the motor 6. Because the inner shaft 14 is movably sleeved in the inner cavity of the main shaft body 9, when the motor 6 outputs electric power, it rotates the inner shaft 14 movably sleeved in the inner cavity of the main shaft body 9, so that the motor 6 of the device is directly connected to the inner shaft 14 without belt transmission.

[0026] In a preferred embodiment, the inner cavity of the shaft head 11 is provided with a tool holder opening 15, and the tool holder opening 15 is in the shape of a conical opening. The tool pull rod 12 on the device is connected to the tool pull claw structure 13, and the tool pull claw structure 13 clamps the tool holder that is inserted into the inner cavity of the tool holder opening 15, so that the tool pull rod 12 on the device and the tool pull claw structure 13 perform a pull claw action on the tool holder in the inner cavity of the tool holder opening 15.

[0027] The working principle is as follows: First, the device differs from traditional equipment in that the main spindle 9, inner shaft 14, and motor 6 work together. The motor 6 is positioned on the main spindle 9, directly connecting the main spindle 9 and the motor 6 as a single unit. The motor 6 directly provides power to the main spindle 9, causing the inner shaft 14 inside the main spindle 9 to rotate. This prevents the maximum speed power provided by the motor 6 from being attenuated and avoids power loss caused by transmission belts or other structures. Then, through the cooperation of the lifting ring 4, the tool-changing cylinder 1, and the motor 6, the rotary joint 2 and the main spindle 9 are mounted on the outer walls of the tool-changing cylinder 1 and the motor 6. Each of the outer walls of the tool-changing cylinder 1 and the motor 6 is connected to a lifting ring 4, allowing the entire device to be installed using only two lifting rings 4, thus simplifying the installation process.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A milling spindle structure, comprising a tool-changing cylinder (1), characterized in that: The outer wall of the cutting cylinder (1) is equipped with a rotary joint (2), the outer wall of the cutting cylinder (1) is connected to a proximity switch (3), the outer wall of the cutting cylinder (1) is connected to a lifting ring (4), the outer wall of the cutting cylinder (1) is equipped with an encoder (5), the outer wall of the cutting cylinder (1) is equipped with a motor (6), the outer wall of the motor (6) is provided with a water inlet (7), the outer wall of the motor (6) is provided with a water outlet (8), the outer wall of the motor (6) is connected to a main shaft (9), the outer wall of the main shaft (9) is connected to a mounting flange (10), the outer wall of the mounting flange (10) is connected to a shaft head (11), the inner wall of the rotary joint (2) is connected to a tool pull rod (12), and the inner wall of the main shaft (9) is fitted with an intermediate tool pull claw structure (13).

2. The milling spindle structure according to claim 1, characterized in that: The proximity switch (3) has a data line connected to its outer wall, and the other end of the data line is connected to a power source.

3. The milling spindle structure according to claim 1, characterized in that: The number of lifting rings (4) is two, and the two lifting rings (4) are respectively set on the outer walls of the knife-cutting cylinder (1) and the motor (6).

4. A milling spindle structure according to claim 1, characterized in that: The inlet (7) and outlet (8) are connected to the inner cavity of the motor (6), and the inner cavity of the motor (6) is provided with a cooling structure.

5. A milling spindle structure according to claim 1, characterized in that: The inner cavity of the main shaft (9) is movably fitted with an inner shaft (14), and the inner shaft (14) is connected to the motor (6).

6. A milling spindle structure according to claim 1, characterized in that: The inner cavity of the shaft head (11) is provided with a tool holder opening (15), and the tool holder opening (15) is in the shape of a conical opening.

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