Large five-axis turning and milling combined machining unit

Abstract

The utility model relates to the technical field of metal cutting machining, in particular to a large five-axis turning and milling combined machining unit. Comprising a stand column arranged on a workbench of the numerical control machine tool in a sliding mode, a sliding body arranged on one side of the stand column in a sliding mode through a first linear rail, a machining unit arranged on one side of the sliding body in a sliding mode through a second linear rail, a first driving part arranged on the stand column and a second driving part arranged in the sliding body. The first driving part is in transmission connection with the sliding body to drive the sliding body to move on the stand column. The second driving part is in transmission connection with the machining unit to drive the machining unit to move on the sliding body. A brake arranged on the lead screw can rapidly hold the lead screw tightly under the emergency conditions of power failure, faults and the like, accidental movement of parts is prevented, and the safety of equipment and the personal safety of operators are guaranteed; due to the design of sliding connection and transmission structures of all the components, the machining unit has good flexibility in space, can adapt to workpieces with different shapes, sizes and machining requirements, and can meet diversified machining requirements.

Description

Technical Field

[0001] This utility model relates to the field of metal cutting processing technology, specifically a large five-axis turning and milling composite machining unit. Background Technology

[0002] With the development of industries such as aviation, aerospace, shipbuilding, and military, the requirements for processing large and complex parts are increasing. High precision and high efficiency are not the only requirements. Traditional processing equipment and technologies struggle to meet these demands, presenting numerous problems. For example, most existing processing units are single-function and cannot complete multiple processes in a single setup. Integrating processes such as turning, milling, drilling, grinding, gear machining, crankshaft machining, and online measurement is difficult, leading to multiple workpiece clamping operations. This not only increases processing time and reduces efficiency but also introduces positioning errors with each clamping, affecting machining accuracy. Furthermore, in terms of motion control, the lack of effective means for precise control and real-time monitoring and feedback of each axis's movement makes it difficult to guarantee the stability of the machining process. This limits the processing quality and production efficiency of complex parts, failing to meet the stringent requirements of high-end manufacturing for parts processing. Utility Model Content

[0003] The purpose of this invention is to provide a large five-axis milling and turning composite machining unit to solve the problems existing in the prior art mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large five-axis milling and turning composite machining unit, comprising a column slidably mounted on a CNC machine tool worktable, a slide body slidably mounted on one side of the column via a first linear guide, a machining unit slidably mounted on one side of the slide body via a second linear guide, a first drive unit mounted on the column, and a second drive unit mounted inside the slide body; the first drive unit is drivenly connected to the slide body to drive the slide body to move on the column, and the second drive unit is drivenly connected to the machining unit to drive the machining unit to move on the slide body.

[0005] Furthermore, the processing unit includes a double-swing milling head and a first motor; the housing of the double-swing milling head is slidably engaged with one side of the slide body via a second linear guide, and the first motor is located on the other side of the slide body and is connected to the double-swing milling head for transmission.

[0006] Furthermore, both the first drive unit and the second drive unit include a second motor and a lead screw; the lead screw is connected to the second motor via a belt.

[0007] Furthermore, a brake is provided on the lead screw.

[0008] Furthermore, both the column and the sliding body are equipped with grating rulers.

[0009] Furthermore, a dual-speed reducer is provided between the double-swing milling head and the first motor.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Multifunctional integrated machining: Through the structural design of this device, multiple processes such as turning, milling, drilling, grinding, gear machining, crankshaft machining, and online measurement can be integrated into a single workpiece clamping, which greatly improves machining efficiency, reduces errors caused by multiple clamping, and improves machining accuracy, thus better meeting the machining needs of complex parts.

[0012] 2. Precise motion control and monitoring: Each axis is driven by a motor and lead screw, combined with a closed-loop detection system using a grating ruler, which enables real-time and precise control of the sliding body and the double-swing milling head's position and speed, effectively improving machining accuracy and motion control stability, and ensuring machining quality.

[0013] 3. Safe and reliable operation; the brake equipped on the lead screw can quickly hold the lead screw in case of power failure, malfunction or other emergencies, prevent the parts from moving accidentally, ensure the safety of the equipment itself and the personal safety of the operators, and improve the reliability and stability of the equipment.

[0014] 4. Flexible structure and strong adaptability: The sliding connection and transmission structure design between the components make the processing unit more flexible in space, which can adapt to workpieces of different shapes, sizes and processing requirements, thus broadening the application range of the equipment and meeting diverse processing needs. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a front view of the present utility model;

[0018] Figure 4 This is a top view of the present invention.

[0019] In the picture:

[0020] 1. CNC machine tool; 2. Column; 3. First linear guide; 4. Sliding body; 5. Second linear guide; 6. Machining unit; 7. First drive unit; 8. Second drive unit; 9. Double swing milling head; 10. First motor; 11. Second motor; 12. Lead screw; 13. Belt; 14. Brake; 15. Grating ruler; 16. Dual-speed reducer. Detailed Implementation

[0021] Please see Figures 1 to 4A large five-axis milling and turning composite machining unit includes a column 2 slidably mounted on the worktable of a CNC machine tool 1. The column 2 is slidably connected to a sliding body 4 via a first linear guide 3. One side of the sliding body 4 is slidably engaged with a machining unit 6 via a second linear guide 5. The machining unit 6 includes a double-swing milling head 9 and a first motor 10. The housing of the double-swing milling head 9 is slidably connected to one side of the sliding body 4. The first motor 10 is located on the other side of the sliding body 4 and is connected to the double-swing milling head 9 for transmission. A dual-speed reducer 16 is provided between the two. A first drive unit 7 is provided on the column 2. The first drive unit 7 includes a second motor 11 located at the end of the column 2 and a lead screw 12 rotatably connected to the column 2. 12 is connected to the second motor 11 via belt 13. The lead screw 12 is connected to the slide body 4 to drive the slide body 4 to move on the column 2. The slide body 4 is provided with a second drive unit 8, which has the same structure as the first drive unit 7. It also includes a second motor 11 and a lead screw 12. The second motor 11 in the first drive unit 7 is located inside the slide body 4. The lead screw 12 is rotatably connected to the slide body 4. The lead screw 12 is connected to the second motor 11 via belt 13. This lead screw 12 is connected to the housing of the double swing milling head 9 in the processing unit 6 to drive the double swing milling head 9 to move on the slide body 4. The lead screw 12 is equipped with a brake 14. The column 2 and the slide body 4 are both provided with a grating ruler 15.

[0022] The first motor 10 provides power to the double-swing milling head 9 via the dual-speed reducer 16. The double-swing milling head 9 can perform a variety of machining actions. Combined with the movement of each axis, it can complete multiple machining processes such as turning, milling, drilling, and grinding to meet the machining needs of complex parts. The second motor 11 in the first drive unit 7 and the second drive unit 8 respectively controls the movement of the slide body 4 on the column 2 and the double-swing milling head 9 on the slide body 4. The lead screw 12 realizes precise transmission. The grating ruler 15 detects the relative position between the column 2 and the slide body 4, and between the slide body 4 and the double-swing milling head 9 in real time, providing feedback for precise control. The brake 14 plays a role in emergency situations to ensure equipment safety.

[0023] Working process and working principle: The CNC machine tool 1's worktable starts, driving the column 2 to move to a suitable Z-axis position (assuming the direction of movement on the worktable is the Z-axis direction; this is driven by the bed-related drive mechanism in the overall equipment and is not described in detail in this document). The second motor 11 in the first drive unit 7 starts, driving the lead screw 12 to rotate via the belt 13. The lead screw 12 drives the slide body 4 to move along the first linear guide 3 on the column 2, adjusting the machining unit 6 to a suitable X-axis position (assuming the movement direction of the column 2 and slide body 4 is the X-axis direction). The grating ruler 15 on the column 2 monitors the position of the slide body 4 in real time and feeds it back to the control system. The control system adjusts the rotation of the second motor 11 according to the feedback information to ensure positioning accuracy. If an abnormality occurs, the brake 14 on the lead screw 12 immediately clamps the lead screw 12 to prevent the slide body 4 from moving out of control. The second motor 11 in the second drive unit 8 works, driving the slide body 4 to rotate via the belt. 13 drives the lead screw 12 to rotate, causing the double-swing milling head 9 to move along the second linear guide 5 on the slide body 4 and adjust to the appropriate Y-axis (assuming the sliding body 4 and the double-swing milling head 9 move in the Y-axis direction). The grating ruler 15 on the slide body 4 detects the position of the double-swing milling head 9 in real time and provides feedback to ensure machining accuracy. Similarly, in an emergency, the brake 14 on the lead screw 12 is activated. The first motor 10 starts, and the power is transmitted to the double-swing milling head 9 through the dual-speed reducer 16. The double-swing milling head 9 performs rotation and other actions according to the machining process requirements. At the same time, the A-axis and B-axis of the double-swing milling head 9 (the control method is not mentioned in detail, but can be controlled by a separate control system to adjust the angle according to the program instructions) are coordinated with the X, Y and Z-axis movements to achieve five-axis linkage machining to process parts with complex spatial curved surfaces. During the machining process, the grating ruler 15 of each axis continuously monitors the position changes to ensure machining accuracy and motion stability.

Claims

1. A large five-axis turning and milling composite machining unit, characterized in that, It includes a column (2) that slides on the worktable of a CNC machine tool (1), a slide body (4) that slides on one side of the column (2) via a first linear guide (3), a machining unit (6) that slides on one side of the slide body (4) via a second linear guide (5), a first drive unit (7) on the column (2), and a second drive unit (8) inside the slide body (4); the first drive unit (7) is connected to the slide body (4) to drive the slide body (4) to move on the column (2), and the second drive unit (8) is connected to the machining unit (6) to drive the machining unit (6) to move on the slide body (4).

2. The large five-axis turning and milling composite machining unit as described in claim 1, characterized in that, The processing unit (6) includes a double-swing milling head (9) and a first motor (10); the housing of the double-swing milling head (9) is slidably engaged with one side of the slide body (4) via a second linear guide (5), and the first motor (10) is located on the other side of the slide body (4) and is connected to the double-swing milling head (9) for transmission.

3. The large five-axis turning and milling composite machining unit as described in claim 2, characterized in that, The first drive unit (7) and the second drive unit (8) both include a second motor (11) and a lead screw (12); the lead screw (12) is connected to the second motor (11) via a belt (13).

4. The large five-axis turning and milling composite machining unit as described in claim 3, characterized in that, The lead screw (12) is equipped with a brake (14).

5. A large five-axis turning and milling composite machining unit as described in claim 1, characterized in that, Both the column (2) and the slide body (4) are equipped with grating rulers (15).

6. The large five-axis turning and milling composite machining unit as described in claim 3, characterized in that, A dual-speed reducer (16) is provided between the double-swing milling head (9) and the first motor (10).

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