New energy motor rotating shaft four-axis clamp

Abstract

This utility model relates to a four-axis clamp for a new energy motor shaft. It includes a base plate, a support member for supporting the motor shaft, a tailstock frame disposed on one side of the top of the base plate, a ejector pin for abutting one end of the motor shaft, a first drive device for driving the ejector pin to move, a four-axis oil sealer disposed on the other side of the top of the base plate, a four-axis chuck for clamping the other end of the motor shaft, and a second drive device for driving the four-axis chuck to rotate. The support member is disposed at the center of the top of the base plate; the first drive device is mounted on the tailstock frame; the drive end of the first drive device is connected to the ejector pin, and the ejector pin faces the support member. This invention solves the technical problems in existing solutions where, in multi-axis linkage machining scenarios, most clamps have poor coordination, resulting in low machining efficiency; the clamping mechanism lacks a synchronous drive mechanism, making it impossible to achieve dynamic balance of the shaft; and uneven clamping force distribution easily causes machining vibration, affecting surface finish.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft machining fixtures, and in particular to a four-axis fixture for a new energy motor shaft. Background Technology

[0002] In the field of new energy motor manufacturing, the machining accuracy and clamping efficiency of the shaft directly affect the motor performance. Traditional fixtures mostly use single-axis fixing or manual clamping methods, which have significant technical defects: First, the shaft position needs to be repeatedly adjusted during clamping, making it difficult to ensure the alignment accuracy of the axis, resulting in machining deviations; second, rigid clamping devices are prone to forming indentations on the shaft surface, especially causing serious damage to high-precision coated or thin-walled shafts; third, they lack adaptive adjustment functions and cannot adapt to the rapid changeover requirements of shafts with different diameters. Although existing automated fixtures improve efficiency through hydraulic or pneumatic clamping, they have complex structures, high maintenance costs, and insufficient clamping force control precision, which can easily cause shaft deformation. In addition, the cooling and lubrication systems of traditional fixtures have low integration, and prolonged machining can easily lead to dimensional errors due to temperature rise, making it difficult to meet the high-efficiency and high-precision machining requirements of new energy motor shafts.

[0003] For multi-axis linkage machining scenarios, existing problems are even more prominent: most fixtures have poor coordination, resulting in low machining efficiency; the clamping mechanism lacks a synchronous drive mechanism, making it impossible to achieve dynamic balance of the rotating axes; uneven distribution of clamping force easily causes machining vibration, affecting surface finish. There is an urgent need for a fixture that integrates multi-axis synchronous drive, adaptive clamping, and efficient cooling and lubrication to solve the technical bottlenecks of low precision, poor adaptability, and low efficiency of traditional devices. Utility Model Content

[0004] This application provides a four-axis clamp for a new energy motor shaft, which solves the technical problems in existing technologies for multi-axis linkage machining scenarios, such as poor clamping coordination leading to low machining efficiency; lack of synchronous drive mechanism in the clamping mechanism, making it impossible to achieve dynamic balance of the shaft; and uneven distribution of clamping force easily causing machining vibration, affecting surface finish.

[0005] The technical solution adopted in the embodiments of this application is as follows:

[0006] A four-axis clamp for a new energy motor shaft includes a base plate, a support member for supporting the motor shaft, a tailstock frame disposed on one side of the top of the base plate, a pin for abutting one end of the motor shaft, a first driving device for driving the pin to move, a four-axis oil sealer disposed on the other side of the top of the base plate, a four-axis chuck for clamping the other end of the motor shaft, and a second driving device for driving the four-axis chuck to rotate. The support member is disposed at the center of the top of the base plate. The first driving device is mounted on the tailstock frame. The driving end of the first driving device is tractively connected to the pin, and the pin faces the support member. The four-axis chuck and the second driving device are respectively mounted at both ends of the four-axis oil sealer. The second driving device is tractively connected to the four-axis chuck, and the four-axis chuck faces the support member. The four-axis chuck and the pin are located on the same center line.

[0007] A further technical solution is as follows: the support component includes a bracket support seat, a part bracket, support wheels, a telescopic pin, and a third drive device; the bracket support seat is located at the top center of the base plate; the bracket support seat has a groove; the third drive device is installed in the groove; the telescopic pin is located on the drive end of the third drive device; the part brackets are provided at both ends of the top of the bracket support seat; the two sets of part brackets are symmetrically arranged with respect to the telescopic pin; two sets of symmetrically arranged support wheels are rotatably connected to the two sets of part brackets through ball bearings; a motor shaft is placed between the two sets of support wheels.

[0008] A further technical solution is as follows: both the first driving device and the third driving device are hydraulic cylinders; the second driving device is an electric motor.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. By employing a base plate, support components, tailstock frame, ejector pin, first drive unit, four-axis oil sealer, four-axis chuck, and second drive unit, this fixture achieves high-precision shaft alignment through the coaxial drive design of the four-axis chuck and ejector pin, significantly reducing machining errors. The combination of the telescopic pin and support wheel in the support component expands the range of compatible motor shaft diameters, improving the fixture's versatility. The four-axis oil sealer integrates lubrication and cooling functions, significantly reducing machining thermal deformation and ensuring surface finish. The cylinder-driven ejector pin and four-axis chuck provide balanced clamping force, preventing indentations on the shaft surface. The modular design of the support wheel and telescopic pin allows for quick model changes, shortening non-machining time. The overall structure, through multi-axis collaboration and adaptive adjustment, overcomes the technical challenges of low precision, poor adaptability, and low efficiency of traditional fixtures, providing a reliable solution for the efficient and precise machining of new energy motor shafts. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a four-axis clamp for a new energy motor shaft in an embodiment of this utility model.

[0012] Figure 2 This is a partial structural schematic diagram illustrating the support member in an embodiment of this utility model.

[0013] In the diagram: 1. Base plate; 2. Support component; 21. Bracket support seat; 22. Part bracket; 23. Support wheel; 24. Telescopic pin; 25. Third drive device; 3. Tailstock frame; 4. Ejector pin; 5. First drive device; 6. Four-axis oil sealer; 7. Four-axis chuck; 8. Second drive device. Detailed Implementation

[0014] This application provides a four-axis clamp for a new energy motor shaft, which solves the technical problems in existing technologies for multi-axis linkage machining scenarios, such as poor clamping coordination leading to low machining efficiency; lack of synchronous drive mechanism in the clamping mechanism, making it impossible to achieve dynamic balance of the shaft; and uneven distribution of clamping force easily causing machining vibration, affecting surface finish.

[0015] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0016] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0017] A four-axis clamp for a new energy motor shaft, such as Figure 1 and Figure 2 As shown, the device includes a base plate 1, a support member 2 for supporting the motor shaft, a tailstock frame 3 located on one side of the top of the base plate 1, a ejector pin 4 for abutting one end of the motor shaft, a first drive device 5 for driving the ejector pin 4 to move, a four-axis oil sealer 6 located on the other side of the top of the base plate 1, a four-axis chuck 7 for clamping the other end of the motor shaft, and a second drive device 8 for driving the four-axis chuck 7 to rotate. The support member 2 is located at the top center of the base plate 1. The first drive device 5 is mounted on the tailstock frame 3. The drive end of the first drive device 5 is connected to the ejector pin 4, and the ejector pin 4 faces the support member 2. The four-axis chuck 7 and the second drive device 8 are respectively mounted at both ends of the four-axis oil sealer 6. The second drive device 8 is connected to the four-axis chuck 7, and the four-axis chuck 7 faces the support member 2. The four-axis chuck 7 and the ejector pin 4 are located on the same center line.

[0018] The support component 2 includes a bracket support 21, a part bracket 22, support wheels 23, a telescopic pin 24, and a third drive device 25. The bracket support 21 is located at the top center of the base plate 1. The bracket support 21 has a groove. The third drive device 25 is installed in the groove. The telescopic pin 24 is located on the drive end of the third drive device 25. Part brackets 22 are provided at both ends of the top of the bracket support 21. The two sets of part brackets 22 are symmetrically arranged with respect to the telescopic pin 24. Two sets of symmetrically arranged support wheels 23 are rotatably connected to the two sets of part brackets 22 through ball bearings. The space between the two sets of support wheels 23 is used to place the motor shaft.

[0019] The first drive unit 5 and the third drive unit 25 are both hydraulic cylinders; the second drive unit 8 is an electric motor.

[0020] The four-axis fixture includes a base plate 1, with a support member 2 at the top center of the base plate 1. The support member 2 consists of a bracket support seat 21, a part bracket 22, support wheels 23, a telescopic pin 24, and a third drive device 25. Part brackets 22 are symmetrically arranged at both ends of the top of the bracket support seat 21. Each set of brackets 22 is equipped with two sets of support wheels 23 via ball bearings, and the rotating shaft is positioned between the support wheels 23. The third drive device 25 (cylinder) drives the telescopic pin 24 to rise and fall, and the telescopic pin 24 abuts against the bottom end of the motor shaft. A tailstock frame 3 is located on one side of the base plate 1, on which a first drive device 5 (cylinder) is installed, driving the ejector pin 4 to move axially and press against one end of the rotating shaft. A four-axis oil sealer 6 is located on the other side of the base plate 1, with a four-axis chuck 7 and a second drive device 8 (motor) installed at both ends. The four-axis chuck 7 is coaxially aligned with the ejector pin 4. The four-axis oil sealer 6 integrates a lubrication channel, spraying cooling oil onto the rotating shaft during processing.

[0021] Operating procedures

[0022] Shaft placement: The shaft is placed between the support wheels 23, and the third drive device 25 drives the telescopic pin 24 to rise, so that the telescopic pin 24 abuts against the bottom of the motor shaft, which plays a supporting role for the motor shaft.

[0023] Axial positioning: Start the first drive device 5, push the ejector pin 4 to press against one end of the rotating shaft, and the tailstock frame 3 restricts the axial displacement of the rotating shaft;

[0024] Radial clamping: The second drive device 8 drives the four-axis chuck 7 to rotate and clamp the other end of the shaft to ensure coaxiality;

[0025] Processing execution: Start the processing equipment, and the four-axis oil sealer 6 synchronously sprays cooling oil to reduce the processing temperature rise;

[0026] Reset and disassembly: After machining is completed, the four-axis chuck 7 releases the rotating shaft, the ejector pin 4 resets, and the rotating shaft is removed.

[0027] By employing a base plate 1, support component 2, tailstock frame 3, ejector pin 4, first drive device 5, four-axis oil sealer 6, four-axis chuck 7, and second drive device 8, this fixture achieves high-precision shaft alignment through the coaxial drive design of the four-axis chuck 7 and ejector pin 4, significantly reducing machining errors. The combination of the telescopic pin 24 and support wheel 23 in support component 2 expands the range of compatible motor shaft diameters, improving the fixture's versatility. The four-axis oil sealer 6 integrates lubrication and cooling functions, significantly reducing machining thermal deformation and ensuring surface finish. The cylinder-driven ejector pin 4 and four-axis chuck 7 provide balanced clamping force, preventing indentations on the shaft surface. The modular design of the support wheel 23 and telescopic pin 24 supports rapid changeover, shortening non-machining time. The overall structure, through multi-axis collaboration and adaptive adjustment, overcomes the technical challenges of low precision, poor adaptability, and low efficiency of traditional fixtures, providing a reliable solution for the efficient and precise machining of new energy motor shafts.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A four-axis clamp for a new energy motor shaft, characterized in that, The system includes a base plate (1), a support member (2) for supporting the motor shaft, a tailstock frame (3) disposed on one side of the top of the base plate (1), a push pin (4) for abutting one end of the motor shaft, a first drive device (5) for driving the push pin (4) to move, a four-axis oil sealer (6) disposed on the other side of the top of the base plate (1), a four-axis chuck (7) for clamping the other end of the motor shaft, and a second drive device (8) for driving the four-axis chuck (7) to rotate; the support member (2) is disposed at the top center of the base plate (1); the first drive device (8) for driving the four-axis chuck (7) to rotate. A drive device (5) is mounted on the tailstock frame (3); the drive end of the first drive device (5) is connected to the ejector pin (4), and the ejector pin (4) faces the support member (2) on one side; the four-axis chuck (7) and the second drive device (8) are respectively mounted on both ends of the four-axis oil sealer (6); the second drive device (8) is connected to the four-axis chuck (7), and the four-axis chuck (7) faces the support member (2) on the other side; the four-axis chuck (7) and the ejector pin (4) are located on the same center line.

2. The four-axis clamp for a new energy motor shaft as described in claim 1, characterized in that, The support member (2) includes a bracket support seat (21), a part bracket (22), support wheels (23), a telescopic pin (24), and a third drive device (25); the bracket support seat (21) is located at the top center of the base plate (1); the bracket support seat (21) has a groove; the third drive device (25) is installed in the groove; the telescopic pin (24) is located on the drive end of the third drive device (25); the part brackets (22) are provided at both ends of the top of the bracket support seat (21); the two sets of part brackets (22) are symmetrically arranged with respect to the telescopic pins (24); the two sets of part brackets (22) are rotatably connected to the two sets of support wheels (23) arranged symmetrically by ball bearings; the space between the two sets of support wheels (23) is used to place the motor shaft.

3. A four-axis clamp for a new energy motor shaft as described in claim 2, characterized in that, The first drive device (5) and the third drive device (25) are both hydraulic cylinders; the second drive device (8) is an electric motor.

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