An integrated spindle motor structure for a five-axis bridge cutting machine

Abstract

This invention belongs to the field of CNC machine tool technology, specifically referring to an integrated spindle motor structure for a five-axis bridge cutting machine. It includes a headstock, a motor, a saw blade pressure plate, and a rotary drive device. The motor includes a motor housing, a front cover, a rear cover, and a central water outlet rotary joint. A stator is housed inside the motor housing, and a rotor is mounted on the central water outlet rotary joint. The front and rear covers are located on the front and rear sides of the motor housing, respectively. Connecting seats are integrally formed on the left and right sides of the motor housing. Two support plates are symmetrically arranged on the headstock. The motor is rotatably mounted between the two support plates via the connecting seats on both sides and is connected to the rotary drive device. The purpose of this invention is to provide a structurally sound integrated spindle motor structure for a five-axis bridge cutting machine that improves machining accuracy through the use of an integrally formed motor housing and connecting seats.

Description

Technical Field

[0001] This invention belongs to the field of CNC machine tool technology, specifically referring to an integrated spindle motor structure for a five-axis bridge cutting machine. Background Technology

[0002] With the development of modern machining industry, the requirements for cutting quality and precision are constantly increasing. The demands for improved production efficiency, reduced production costs, and highly intelligent automatic cutting functions are also rising. The development of CNC cutting machines must adapt to the requirements of modern machining industry. Among semi-automatic cutting machines, contour cutting machines offer better workpiece quality. Compared to manual and semi-automatic cutting methods, CNC cutting can effectively improve the efficiency and quality of plate cutting and reduce the operator's labor intensity. Currently, the saw blade motor housing is fixed to a connecting seat via bolts, and then connected to a central water outlet rotary joint via the connecting seat, rotating on the chuck seat. In actual long-term use, it has been found that while this method ensures cutting function, the processing precision is always slightly inferior. Summary of the Invention

[0003] The purpose of this invention is to provide a structurally sound, integrated spindle motor structure for a five-axis bridge cutting machine that improves machining accuracy by using an integrally molded connecting seat.

[0004] The objective of this invention is achieved as follows: An integrated spindle motor structure for a five-axis bridge cutting machine includes a headstock, a motor, a saw blade pressure plate, and a rotary drive device. The motor includes a motor housing, a front cover, a rear cover, and a central water outlet rotary joint. A stator is installed inside the motor housing. The central water outlet rotary joint is located inside the motor housing and has a rotor installed on it. The front cover and rear cover are located on the front and rear sides of the motor housing, respectively. Connecting seats are integrally formed on the left and right sides of the motor housing. Two support plates are symmetrically arranged on the headstock. The motor is rotatably mounted between the two support plates via the connecting seats on both sides and is connected to the rotary drive device. The rotary drive device drives the motor to rotate. The saw blade pressure plate is connected to the central water outlet rotary joint of the motor.

[0005] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a rotary joint for water outlet at the center of the spindle is provided inside the support plate and connected to the connecting seat, and a bearing is provided between the rotary joint for water outlet at the center of the spindle and the support plate, and the rotary drive device is connected to one of the rotary joints for water outlet at the center of the spindle.

[0006] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, a sealing ring is provided inside the support plate, and the sealing ring is located on both sides of the bearing.

[0007] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a connecting plate is provided on the rotary joint with water outlet at the spindle center, and the connecting plate is connected to the connecting seat by bolts.

[0008] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, at least one through hole is provided on the motor housing.

[0009] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, there are four through holes, located at the four corners of the motor housing.

[0010] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, the saw blade pressure plate includes an inner pressure plate and an outer pressure plate. Both the inner pressure plate and the outer pressure plate are mounted on the output shaft of the motor, and a locking nut is provided on one side of the outer pressure plate. The outer pressure plate moves closer to the inner pressure plate through the locking nut.

[0011] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, two bearings are provided between the front end cover and the central water outlet rotary joint, and a bearing is provided between the rear end cover and the central water outlet rotary joint.

[0012] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a guide cylinder is provided at one end of the front end cover near the inner pressure plate. The guide cylinder is provided with multiple waterproof grooves, and the inner pressure plate is provided with waterproof grooves that cooperate with the waterproof grooves.

[0013] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, anti-slip textures are provided on the inner and outer pressure plates respectively.

[0014] The outstanding and beneficial technical effects of this invention compared to the prior art are: This invention improves the rotational accuracy of the motor by integrally molding connecting seats on both sides of the motor housing, and then connecting the connecting seats to the rotary joint for water outlet at the center of the motor and rotating them onto the chuck seat. It is worth mentioning that the motor housing is made in one piece, which is different from the traditional connecting seats that are connected by bolts. The overall strength and toughness are better, and the connection accuracy with the rotary joint for water outlet at the center of the motor is also better. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation location structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention.

[0017] Figure 3 This is one of the cross-sectional views of the present invention.

[0018] Figure 4This is the second cross-sectional view of the present invention.

[0019] Figure 5 This is an enlarged view of point A in the present invention.

[0020] Figure 6 This is a schematic diagram of the motor structure.

[0021] The meaning of the labels in the diagram: 1- Machine head base; 2- Motor; 3- Saw blade pressure plate; 4- Rotary drive device; 11- Support plate; 12-Swivel center outlet rotary joint; 13-Bearing 1; 14-Sealing ring; 15-Connecting disc; 21-Connecting seat; 24-Through hole; 31-Inner pressure plate; 32-Outer pressure plate; 33-Locking nut; 201-Motor housing; 202-Front end cover; 203-Rear end cover; 204 - Center water outlet rotary joint; 205 - Bearing II; 206 - Guide cylinder; 207 - Waterproof groove I; 208 - Waterproof groove II; 209 - Anti-slip texture. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments: like Figures 1-6 The diagram shows an integrated spindle motor structure for a five-axis bridge cutting machine, comprising a headstock 1, a motor 2, a saw blade pressure plate 3, and a rotary drive device 4. The motor 2 includes a motor housing 201, a front cover 202, a rear cover 203, and a central water outlet rotary joint 204. A stator is housed within the motor housing 201, and a rotor is mounted on the central water outlet rotary joint 204. The front cover 202 and rear cover 203 are located on the front and rear sides of the motor housing 201, respectively. Connecting seats 21 are integrally formed on the left and right sides of the motor housing 201. Two support plates 11 are symmetrically arranged on the headstock 1. The motor 2 is connected via connecting plates on both sides. The seat 21 is rotatably mounted between two support plates 11 and connected to the rotary drive device 4. The rotary drive device 4 drives the motor 2 to rotate. The saw blade pressure plate 3 is connected to the central water outlet rotary joint 204 of the motor 2. This invention improves the rotational accuracy of the motor by integrally forming connecting seats on both sides of the motor housing and then connecting the connecting seats to the central water outlet rotary joint. It is worth mentioning that the motor housing is made in an integral molding manner, which is different from the traditional connecting seats that are connected by bolts. The overall strength and toughness are better, and the connection accuracy with the central water outlet rotary joint is also better. This rotary drive device is a high-precision RV reducer for robots.

[0023] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a rotary water outlet joint 12 connected to the connecting seat 21 is provided in the support plate 11, and a bearing 13 is provided between the rotary water outlet joint 12 and the support plate 11. The rotary drive device 4 is connected to one of the rotary water outlet joints 12. Specifically, the rotary drive device is a servo module.

[0024] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a sealing ring 14 is provided inside the support plate 11. The sealing ring 14 is located on both sides of the bearing 13. Specifically, the sealing ring is designed to prevent waste chips from entering.

[0025] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, a connecting plate 15 is provided on the rotary water outlet 12 of the spindle center. The connecting plate 15 is connected to the connecting seat 21 by bolts. Specifically, the connecting plate is provided with multiple connecting holes, and the connecting seat is provided with fixing holes that cooperate with the connecting holes. The above-mentioned hole positions are not shown in the figure, but the bolt connection is the prior art.

[0026] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, the motor housing 201 is provided with four through holes 24, which are located at the four corners of the motor housing 201. Specifically, the through holes have an irregular shape and mainly serve the function of heat dissipation.

[0027] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, the saw blade pressure plate 3 includes an inner pressure plate 31 and an outer pressure plate 32. Both the inner pressure plate 31 and the outer pressure plate 32 are mounted on the output shaft of the motor 2, and a locking nut 33 is provided on one side of the outer pressure plate 32. The outer pressure plate 32 moves closer to the inner pressure plate 31 through the locking nut 33.

[0028] In the above-mentioned integrated spindle motor structure for a five-axis bridge cutting machine, two bearings 205 are provided between the front end cover 202 and the central water outlet rotary joint 204, and a bearing 3 is provided between the rear end cover 203 and the central water outlet rotary joint 204.

[0029] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, a guide cylinder 206 is provided at one end of the front end cover 202 near the inner pressure plate 31. The guide cylinder 206 is provided with multiple waterproof grooves 207, and the inner pressure plate 31 is provided with waterproof grooves 208 that cooperate with the waterproof grooves 207. Specifically, the inner pressure plate rotates with the central water outlet rotary joint. The waterproof grooves 1 on the guide cylinder and 2 on the inner pressure plate cooperate with each other, and there is a gap between them. This prevents waste from entering the central water outlet rotary joint during its rotation. The central water outlet rotary joint is provided with a limit step to prevent the inner pressure plate from contacting the front end cover.

[0030] In the aforementioned integrated spindle motor structure for a five-axis bridge cutting machine, anti-slip textures 209 are provided on the inner pressure plate 31 and the outer pressure plate 32, specifically to further improve the clamping of the saw blade by the chuck.

[0031] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An integrated spindle motor structure for a five-axis bridge cutting machine, comprising a headstock (1), a motor (2), a saw blade pressure plate (3), and a rotary drive device (4), characterized in that: The motor (2) includes a motor housing (201), a front end cover (202), a rear end cover (203), and a central water outlet rotary joint (204). The motor housing (201) is equipped with a stator. The central water outlet rotary joint (204) is located inside the motor housing (201) and is equipped with a rotor. The front end cover (202) and the rear end cover (203) are located on the front and rear sides of the motor housing (201), respectively. The left and right sides of the motor housing (201) are integrally formed with connecting seats (21). The machine head base (1) is symmetrically equipped with two support plates (11). The motor (2) is rotatably mounted between the two support plates (11) through the connecting seats (21) on both sides and is connected to the rotary drive device (4). The rotary drive device (4) drives the motor (2) to rotate. The saw blade pressure plate (3) is connected to the central water outlet rotary joint (204) of the motor (2).

2. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 1, characterized in that: The support plate (11) is provided with a rotating center water outlet rotary joint (12) connected to the connecting seat (21), and a bearing (13) is provided between the rotating center water outlet rotary joint (12) and the support plate (11). The rotating drive device (4) is connected to one of the rotating center water outlet rotary joints (12).

3. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 2, characterized in that: A sealing ring (14) is provided inside the support plate (11), and the sealing ring (14) is located on both sides of the bearing (13).

4. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 1, 2, or 3, characterized in that: The rotary water outlet joint (12) is provided with a connecting plate (15), which is connected to the connecting seat (21) by bolts.

5. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 4, characterized in that: The motor housing (201) is provided with at least one through hole (24).

6. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 5, characterized in that: There are four through holes (24), which are located at the four corners of the motor housing (201).

7. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 4, characterized in that: The saw blade pressure plate (3) includes an inner pressure plate (31) and an outer pressure plate (32). The inner pressure plate (31) and the outer pressure plate (32) are both mounted on the output shaft of the motor (2). A locking nut (33) is provided on one side of the outer pressure plate (32). The outer pressure plate (32) moves closer to the inner pressure plate (31) through the locking nut (33).

8. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 7, characterized in that: Two bearings (205) are provided between the front end cover (202) and the central water outlet rotary joint (204), and a bearing (3) is provided between the rear end cover (203) and the central water outlet rotary joint (204).

9. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 8, characterized in that: The front end cover (202) is provided with a guide tube (206) near the inner pressure plate (31). The guide tube (206) is provided with a plurality of waterproof grooves (207), and the inner pressure plate (31) is provided with waterproof grooves (208) that cooperate with the waterproof grooves (207).

10. The integrated spindle motor structure for a five-axis bridge cutting machine according to claim 8, characterized in that: The inner pressure plate (31) and the outer pressure plate (32) are respectively provided with anti-slip texture (209).

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