A head Y-axis AC swing head moving device of a numerical control machine tool

Abstract

The application relates to the technical field of numerical control machine tools, and discloses a head Y-axis AC swing head moving device of a numerical control machine tool, which comprises an X-axis moving base, a Y-axis rack mechanism and a balance maintaining mechanism, the X-axis moving base is slidably connected to an X-axis track, the Y-axis rack mechanism is fixedly installed on the X-axis moving base, an AC swing head is slidably connected to the Y-axis rack mechanism, the Y-axis rack mechanism is used for driving the AC swing head to move in the Y-axis direction, the balance maintaining mechanism is arranged on the Y-axis rack mechanism, the balance maintaining mechanism is connected with the AC swing head, and the balance maintaining mechanism is used for maintaining the balance of the Y-axis rack mechanism when the Y-axis rack mechanism drives the AC swing head to move. Through the technical scheme, the problem that the balance of the AC swing head moving and working on the numerical control machine tool in the prior art is prone to change is solved.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, specifically to a CNC machine tool head Y-axis AC tilting head moving device. Background Technology

[0002] The AC swivel head is an important component of a five-axis machine tool. The AC swivel head operates based on two rotary axes, A and C. During the machining process, the CNC machine tool adjusts the tool through a pre-programmed procedure to machine the workpiece at multiple angles and directions, achieving complex surface and multi-angle machining operations. Through the AC swivel head, the CNC machine tool can achieve high-speed and high-efficiency machining, improving production efficiency. Furthermore, through precise control of the machining process, it can also reduce scrap rate and material consumption, thereby lowering costs and equipment wear.

[0003] During machining, the AC swivel head is a relatively complex and large device. When the AC swivel head moves up and down on the machine tool, the center of gravity of the moving device that drives the AC swivel head on the CNC machine tool may shift. In addition, since the AC swivel head needs to continuously cut the workpiece with the tool, the load on the AC swivel head is constantly changing. Over time, the imbalance of the machine head may cause deviations in the cutting process. Therefore, when the AC swivel head moves or is used to machine complex workpieces, it may affect the balance of the AC swivel head. Summary of the Invention

[0004] This invention proposes a Y-axis AC swivel head moving device for CNC machine tools, which solves the problem that the AC swivel head movement and balance of CNC machine tools are prone to change during operation in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] A Y-axis AC swivel head moving device for a CNC machine tool includes an X-axis track, an X-axis moving base, a Y-axis frame mechanism, and a balance maintaining mechanism. The X-axis moving base is slidably connected to the X-axis track, and the Y-axis frame mechanism is fixedly mounted on the X-axis moving base. An AC swivel head is slidably connected to the Y-axis frame mechanism, which drives the AC swivel head to move in the Y-axis direction. The balance maintaining mechanism is disposed on the Y-axis frame mechanism and connected to the AC swivel head, and is used to maintain the balance of the Y-axis frame mechanism when the AC swivel head is moved by the Y-axis frame mechanism.

[0007] The Y-axis frame mechanism includes a vertical frame, a track, and a motor. The vertical frame is fixedly connected to the X-axis moving base. The balance maintenance mechanism is located on one side of the vertical frame. The track is vertically opened on the side of the vertical frame away from the balance maintenance mechanism. The AC oscillating head is slidably connected to the track. The motor is fixedly installed on the top of the vertical frame. A screw is fixedly connected to the output end of the motor. The screw is rotatably connected to the vertical frame and passes through and is threadedly connected to the AC oscillating head. A lifting groove is opened on the vertical frame. The lifting groove is vertically arranged and passes through the vertical frame. A traction plate is provided on the AC oscillating head. The traction plate is fixedly connected to the AC oscillating head and passes through the lifting groove.

[0008] The balance maintenance mechanism includes a hoisting frame, a second track, a sliding frame, and a center of gravity shifting component. The hoisting frame is fixedly connected to the top of the vertical frame on the side away from the AC oscillating head. The second track is opened on the hoisting frame, and the sliding frame is slidably connected in the second track. The center of gravity shifting component is disposed on the vertical frame and is rotatably connected to the sliding frame. The center of gravity shifting component is used to maintain the balance of the vertical frame when the AC oscillating head is vertically raised and lowered.

[0009] The center of gravity shifting assembly includes a first rotating shaft, a second rotating shaft, a support frame, a counterweight, and a traction rope. The first rotating shaft is fixedly connected to the end of the traction plate away from the AC swing head. The first rotating shaft is located on the side of the vertical frame near the hoisting frame. The second rotating shaft is mounted on the sliding frame. The support frame is rotatably connected to both the first and second rotating shafts. The counterweight is slidably mounted on the support frame. Both ends of the traction rope are connected to the vertical frame and the counterweight, respectively. A steering wheel is rotatably mounted on the second rotating shaft, and the steering wheel is located in the steering groove.

[0010] The support frame is provided with a first rotating shaft sleeve and a second rotating shaft sleeve at both ends. The first rotating shaft sleeve is rotatably connected to the first rotating shaft, and the second rotating shaft sleeve is rotatably connected to the second rotating shaft. A turning groove is provided in the center of the second rotating shaft sleeve, and a cable management hole is provided on the support frame near the turning groove.

[0011] The traction rope is connected to the vertical frame near the hoisting frame. After the traction rope is wound around the steering wheel, it is connected to the counterweight through the cable management hole. A damping ring is provided at the sliding connection point between the counterweight and the support frame. Shock-absorbing pads are fixedly connected to the two sides of the support frame at the positions where they can contact the counterweight.

[0012] The working principle and beneficial effects of this invention are as follows:

[0013] 1. In this invention, by setting a counterweight and a traction rope, when the AC oscillating head rises to the upper part of track one, the support frame pushes the sliding frame to move to the side of track two away from the vertical frame. The traction rope rotates with the rotating shaft two, and the steering wheel on the rotating shaft two supports the traction rope, so that the traction rope pulls the counterweight through the cable management hole. When the sliding frame is on the side away from the vertical frame, the traction rope pulls the counterweight upward, and the counterweight slides to the side of the support frame near the rotating shaft sleeve two. At this time, the counterweight is on the side away from the vertical frame. The position of the frame is controlled by the counterweight moving up and down, and towards and away from the vertical frame, as the AC oscillating head rises and falls. When the AC oscillating head moves to the top of the vertical frame, the counterweight also moves to the end of track two away from the vertical frame and slides onto the support frame near the second rotating sleeve, maintaining the balance of the vertical frame. When the AC oscillating head descends, the counterweight slides towards the first rotating sleeve, reducing its impact on the center of gravity of the vertical frame. The counterweight can be adjusted according to the impact of the AC oscillating head on the center of gravity of the vertical frame.

[0014] 2. In this invention, by setting a balance maintenance mechanism, as the AC swing head moves upward, the influence on the overall center of gravity shift of the vertical frame gradually increases. By sliding the counterweight block upward and away from the vertical frame, the counterweight block can balance the center of gravity of the vertical frame, and the magnitude of the balancing force automatically changes with the rise and fall of the AC swing head. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the structure in which the balance maintenance mechanism cooperates with the vertical frame in this invention;

[0019] Figure 4 This is a partial structural diagram of the cooperation between the center of gravity shifting component and the traction plate in this invention;

[0020] Figure 5 This is a partial cross-sectional view of the sliding frame and the support frame cooperating in this invention.

[0021] Figure 6 This is a partial structural diagram of the sliding frame and the traction rope in this invention.

[0022] In the diagram: 1. X-axis track; 2. X-axis moving base; 3. AC oscillating head; 4. Vertical frame; 5. Track 1; 6. Motor; 7. Screw; 8. Lifting bar groove; 9. Traction plate; 10. Hoisting frame; 11. Track 2; 12. Sliding frame; 13. Rotating shaft 1; 14. Rotating shaft 2; 15. Support frame; 16. Counterweight; 17. Traction rope; 18. Rotating shaft sleeve 1; 19. Rotating shaft sleeve 2; 20. Steering groove; 21. Cable management hole; 22. Steering wheel; 23. Damping ring; 24. Vibration damping pad. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1 to 6 As shown, this embodiment proposes a Y-axis AC sway head moving device for a CNC machine tool, including an X-axis track 1, an X-axis moving base 2, a Y-axis frame mechanism, and a balance maintaining mechanism. The X-axis moving base 2 is slidably connected to the X-axis track 1, and the Y-axis frame mechanism is fixedly installed on the X-axis moving base 2. An AC sway head 3 is slidably connected to the Y-axis frame mechanism. The Y-axis frame mechanism is used to drive the AC sway head 3 to move in the Y-axis direction. The balance maintaining mechanism is disposed on the Y-axis frame mechanism and is connected to the AC sway head. The machine head 3 is connected to a balance maintenance mechanism to maintain the balance of the Y-axis frame mechanism when the AC swing head machine head 3 is moved by the Y-axis frame mechanism. A drive device is set on the X-axis track 1 to drive the X-axis base to move laterally on the X-axis track 1. The AC swing head machine head 3 is raised and lowered in the vertical direction on the vertical frame 4 to perform multi-angle processing. When the AC swing head machine head 3 moves, the balance maintenance mechanism moves accordingly, causing the center of gravity position on the vertical frame 4 to change accordingly, thereby maintaining the overall balance of the vertical frame 4.

[0025] like Figures 1 to 3As shown, the Y-axis frame mechanism includes a vertical frame 4, a track 5, and a motor 6. The vertical frame 4 is fixedly connected to the X-axis moving base 2. A balance maintenance mechanism is located on one side of the vertical frame 4. The track 5 is vertically located on the side of the vertical frame 4 away from the balance maintenance mechanism. The AC oscillating head 3 is slidably connected to the track 5. The motor 6 is fixedly installed on the top of the vertical frame 4. A screw 7 is fixedly connected to the output end of the motor 6. The screw 7 is rotatably connected to the vertical frame 4. The screw 7 passes through and is threadedly connected to the AC oscillating head 3. A lifting groove 8 is provided on the vertical frame 4. The lifting groove 8 is vertically arranged. The groove 8 passes through the vertical frame 4. A traction plate 9 is installed on the AC swing head 3. The traction plate 9 is fixedly connected to the AC swing head 3 and passes through the lifting groove 8. The output end of the motor 6 drives the screw 7 to rotate, which can drive the AC swing head to move vertically. The AC swing head 3 slides on the track 5. At the same time, the traction plate 9 slides vertically in the lifting groove 8. A frame is installed on the vertical frame 4. The frame is located on the side of the vertical frame 4 away from the hoisting frame 10. The frame is connected to the hoisting frame 10 and pulls the hoisting frame 10 to prevent the hoisting frame 10 from bending due to its excessive length and weight.

[0026] like Figures 1 to 4 As shown, the balance maintenance mechanism includes a hoisting frame 10, a second track 11, a sliding frame 12, and a center of gravity shifting component. The hoisting frame 10 is fixedly connected to the top of the vertical frame 4 on the side away from the AC oscillating head 3. The second track 11 is opened on the hoisting frame 10. The sliding frame 12 is slidably connected in the second track 11. The center of gravity shifting component is set on the vertical frame 4 and is rotatably connected to the sliding frame 12. The center of gravity shifting component is used to maintain the balance of the vertical frame 4 when the AC oscillating head 3 is vertically raised and lowered. The sliding frame 12 is provided with multiple rollers and slides in the second track 11 through the rollers. The sliding clamp is set below the hoisting frame 10.

[0027] like Figures 3 to 6As shown, the center of gravity shifting assembly includes a first rotating shaft 13, a second rotating shaft 14, a support frame 15, a counterweight 16, and a traction rope 17. The first rotating shaft 13 is fixedly connected to the end of the traction plate 9 away from the AC swing head 3. The first rotating shaft 13 is located on the side of the vertical frame 4 near the hoisting frame 10. The second rotating shaft 14 is mounted on the sliding frame 12. The support frame 15 is rotatably connected to the first rotating shaft 13 and the second rotating shaft 14, respectively. The counterweight 16 is slidably mounted on the support frame 15. The two ends of the traction rope 17 are connected to the vertical frame 4 and the counterweight 16, respectively. Next, a steering wheel 22 is rotatably mounted on the second rotating shaft 14, and the steering wheel 22 is located in the steering groove 20. When the screw 7 drives the AC oscillating head 3 to rise and fall, the traction plate 9 drives the first rotating shaft 13 to rise and fall through the lifting groove 8. The first rotating shaft 13 pushes the support frame 15 to rotate, and the support frame 15 pushes the sliding frame 12 to slide on the second track 11 through the second rotating shaft 14. When the AC oscillating head 3 rises to the upper part of the first track 5, the support frame 15 pushes the sliding frame 12 to move onto the second track 11 away from the vertical frame. On one side of 4, the traction rope 17 rotates with the rotating shaft 14. The steering wheel 22 on the rotating shaft 14 supports the traction rope 17, allowing the traction rope 17 to pull the counterweight 16 through the cable management hole 21. When the sliding frame 12 is on the side away from the vertical frame 4, the traction rope 17 pulls the counterweight 16 upward. The counterweight 16 slides onto the support frame 15 near the rotating shaft sleeve 19. At this time, the counterweight 16 is in a position away from the vertical frame 4, and the AC oscillating head 3 is on the upper part of the track 5. Based on the lever principle, the farther the counterweight 16 is from the vertical frame 4, the greater its impact on the center of gravity shift. At the same time, the farther the AC oscillating head 3 is from the connection point between the vertical frame 4 and the X-axis moving base 2, the greater its impact on the center of gravity shift on the vertical frame 4. By adjusting the weight of the counterweight 16 and the length of the hoisting frame 10 and the traction rope 17, the counterweight 16 can move upward and away from the vertical frame 4 during the upward movement of the AC oscillating head 3, thus relatively maintaining the stability of the center of gravity of the vertical frame 4.

[0028] like Figures 3 to 5 As shown, the support frame 15 is provided with a first rotating shaft sleeve 18 and a second rotating shaft sleeve 19 at both ends. The first rotating shaft sleeve 18 is rotatably connected to the first rotating shaft 13, and the second rotating shaft sleeve 19 is rotatably connected to the second rotating shaft 14. A steering groove 20 is provided in the center of the second rotating shaft sleeve 19. A cable management hole 21 is provided on the support frame 15 near the steering groove 20. After the traction rope 17 is turned by the steering wheel 22, it pulls the counterweight 16 through the cable management hole 21. The traction rope 17 can keep the traction direction of the counterweight 16 unchanged through the cable management hole 21, and always be parallel to the support frame 15, so that the distance of the counterweight 16 is not changed with the rotation angle of the support frame 15.

[0029] like Figures 5 to 6As shown, the traction rope 17 is connected to the vertical frame 4 near the hoisting frame 10. After the traction rope 17 is wound around the steering wheel 22, it is connected to the counterweight 16 through the cable management hole 21. A damping ring 23 is provided at the sliding connection between the counterweight 16 and the support frame 15. Shock-absorbing pads 24 are fixedly connected to the two sides of the support frame 15 at the positions where they can contact the counterweight 16. The damping ring 23 can slow down the sliding of the counterweight 16, so as to prevent the counterweight 16 from sliding back and forth on the support frame 15 when the AC swing head 3 is rapidly raised and lowered. Preventing the counterweight 16 from sliding back and forth can also prevent the counterweight 16 from causing vibration of the vertical frame 4. At the same time, the shock-absorbing pads 24 can prevent the counterweight 16 from impacting the two sides of the support frame 15.

[0030] In this embodiment, the output end of the motor 6 drives the screw 7 to rotate, and the screw 7 drives the AC swing head mechanism to rise on the first track 5. At this time, the traction plate 9 drives the first rotating shaft 13 to move upward, the first rotating shaft 13 pushes the support frame 15 to rotate, the support frame 15 pushes the sliding frame 12 to slide on the second track 11, the first rotating shaft sleeve 18 rotates on the first rotating shaft 13, the second rotating shaft sleeve 19 rotates on the second rotating shaft 14, the steering wheel 22 pushes the traction rope 17, the traction rope 17 pulls the counterweight 16 through the cable management hole 21, so that the counterweight 16 slides towards the second rotating shaft sleeve 19. When the AC swing head 3 slides to the top of the first track 5, the counterweight 16 slides to the end of the support frame 15 near the second rotating shaft sleeve 19.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A head movement device for the Y-axis AC of a CNC machine tool, comprising an X-axis track (1), characterized in that, Also includes: X-axis movable base (2), which is slidably connected to the X-axis track (1); Y-axis frame mechanism, the Y-axis frame mechanism is fixedly installed on the X-axis moving base (2), and the AC swing head (3) is slidably connected on the Y-axis frame mechanism. The Y-axis frame mechanism is used to drive the AC swing head (3) to move in the Y-axis direction. The Y-axis frame mechanism includes a vertical frame (4); A balance maintenance mechanism is provided on the Y-axis frame mechanism and is connected to the AC swing head (3). The balance maintenance mechanism is used to maintain the balance of the Y-axis frame mechanism when the Y-axis frame mechanism drives the AC swing head (3) to move. The AC swing head (3) is provided with a traction plate (9), and the vertical frame (4) is provided with a lifting groove (8). The lifting groove (8) is vertically arranged and passes through the vertical frame (4). The traction plate (9) is fixedly connected to the AC swing head (3) and passes through the lifting groove (8). The balance maintenance mechanism includes: A hoisting frame (10) is fixedly connected to the top of the vertical frame (4) on the side away from the AC swing head (3); Track 2 (11), which is set on the hoisting frame (10); A sliding frame (12) is slidably connected in the second track (11); A center of gravity moving component is provided on the vertical frame (4) and is rotatably connected to the sliding frame (12). The center of gravity moving component is used to maintain the balance of the vertical frame (4) when the AC swing head (3) is raised and lowered vertically. The center of gravity shifting component includes: A rotating shaft (13) is fixedly connected to one end of the traction plate (9) away from the AC swing head (3). The rotating shaft (13) is on the side of the vertical frame (4) close to the hoisting frame (10). Rotating shaft two (14), the rotating shaft two (14) is disposed on the sliding frame (12); Support frame (15), the support frame (15) is rotatably connected to the first rotating shaft (13) and the second rotating shaft (14); A counterweight (16) is slidably mounted on the support frame (15); The traction rope (17) is connected at both ends to the vertical frame (4) and the counterweight (16).

2. The head movement device for the Y-axis AC of a CNC machine tool according to claim 1, characterized in that, The vertical frame (4) is fixedly connected to the X-axis moving base (2), the balance maintenance mechanism is disposed on one side of the vertical frame (4), and the Y-axis frame mechanism further includes: Track 1 (5) is vertically opened on the side away from the balance maintenance mechanism on the vertical frame (4), and the AC swing head (3) is slidably connected to the track 1 (5); The motor (6) is fixedly installed on the top of the vertical frame (4). A screw (7) is fixedly connected to the output end of the motor (6). The screw (7) is rotatably connected to the vertical frame (4). The screw (7) passes through and is threadedly connected to the AC swing head (3).

3. The head movement device for the Y-axis AC of a CNC machine tool according to claim 2, characterized in that, The support frame (15) is provided with a first rotating shaft sleeve (18) and a second rotating shaft sleeve (19) at both ends. The first rotating shaft sleeve (18) is rotatably connected to the first rotating shaft (13), and the second rotating shaft sleeve (19) is rotatably connected to the second rotating shaft (14). A turning groove (20) is provided in the center of the second rotating shaft sleeve (19), and a cable management hole (21) is provided on the support frame (15) near the turning groove (20).

4. The head movement device for the Y-axis AC of a CNC machine tool according to claim 3, characterized in that, A steering wheel (22) is rotatably mounted on the second rotating shaft (14), and the steering wheel (22) is disposed in the steering groove (20).

5. The head movement device for the Y-axis AC of a CNC machine tool according to claim 4, characterized in that, The traction rope (17) is connected to the vertical frame (4) near the hoisting frame (10). After the traction rope (17) is wound around the steering wheel (22), it is connected to the counterweight (16) through the cable management hole (21).

6. The headstock AC tilting device for a CNC machine tool according to claim 5, characterized in that, A damping ring (23) is provided at the sliding connection between the counterweight (16) and the support frame (15), and shock-absorbing pads (24) are fixedly connected at the positions on both sides of the support frame (15) that can contact the counterweight (16).

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