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

Abstract

The invention relates to the technical field of numerical control machine tools, and provides a machine head Y-axis AC swing head moving device of a numerical control machine tool, the machine head Y-axis AC swing head moving device 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, the Y-axis rack mechanism is slidably connected with an AC swing head machine head, and the AC swing head machine head is fixedly installed on the balance maintaining mechanism. The Y-axis rack mechanism is used for driving the AC swing head machine 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 machine 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 machine head to move. The problem that in the prior art, when an AC swing head on a numerical control machine tool moves and works, balance is prone to change is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machine tools, and more specifically, to a Y-axis AC swing head moving device for the head of a numerical control machine tool. Background Art

[0002] The AC swing head is an important part of a five-axis machine tool. The AC swing head works based on two rotating coordinates, the A-axis and the C-axis. During the machining process, the numerical control machine tool adjusts the tool through a pre-written program to machine the workpiece at multiple angles and directions, realizing complex curved surface and multi-angle machining operations. Through the AC swing head, the numerical control machine tool can achieve high-speed and efficient machining methods, improve production efficiency, and also reduce the scrap rate and materials through precise control of the machining process, reducing costs and equipment wear.

[0003] During machining, since the AC swing head is a device with a relatively complex structure and large size, when the AC swing head moves up and down on the machine tool, it may cause the center of gravity stability on the moving device that drives the AC swing head to move on the numerical control machine tool to shift. And because the AC swing head needs to continuously cut the workpiece through the tool, the load borne by the AC swing head is constantly changing during this process. Over time, the imbalance of the head may cause deviations during the tool cutting process. Therefore, when the AC swing head moves or processes complex workpieces, it may affect the balance of the AC swing head. Summary of the Invention

[0004] The present invention provides a Y-axis AC swing head moving device for the head of a numerical control machine tool, which solves the problem that the balance of the AC swing head on a numerical control machine tool is prone to change during movement and operation in the prior art.

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

[0006] A Y-axis AC swing head moving device for the head of a numerical control 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, the Y-axis frame mechanism is fixedly installed on the X-axis moving base, an AC swing head is slidably connected to the Y-axis frame mechanism, the Y-axis frame mechanism is used to drive the AC swing head to move in the Y-axis direction, the balance maintaining mechanism is arranged on the Y-axis frame mechanism, and the balance maintaining mechanism is connected to the AC swing head. The balance maintaining mechanism is used to maintain the balance of the Y-axis frame mechanism when the Y-axis frame mechanism drives the AC swing head to move.

[0007] The Y-axis frame mechanism includes a vertical frame body, a first track, and a motor. The vertical frame body is fixedly connected to the X-axis moving base. The balance maintaining mechanism is arranged on one side of the vertical frame body. The first track is vertically opened on the side of the vertical frame body away from the balance maintaining mechanism. The AC swing head machine head is slidably connected to the first track. The motor is fixedly installed on the top of the vertical frame body. A screw rod is fixedly connected to the output end of the motor. The screw rod is rotatably connected to the vertical frame body. The screw rod penetrates and is threadedly connected to the AC swing head machine head. A lifting strip groove is opened on the vertical frame body. The lifting strip groove is vertically arranged and penetrates the vertical frame body. A traction plate is arranged on the AC swing head machine head. The traction plate is fixedly connected to the AC swing head machine head. The traction plate penetrates the lifting strip groove.

[0008] The balance maintaining mechanism includes a hoisting frame, a second track, a sliding frame, and a center of gravity moving component. The hoisting frame is fixedly connected to the top of the vertical frame body on the side away from the AC swing head machine head. The second track is opened on the hoisting frame. The sliding frame is slidably connected to the second track. The center of gravity moving component is arranged on the vertical frame body. The center of gravity moving component is rotatably connected to the sliding frame. The center of gravity moving component is used to maintain the balance of the vertical frame body when the AC swing head machine head vertically moves up and down.

[0009] The center of gravity moving component 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 machine head. The first rotating shaft is on the side of the vertical frame body close to the hoisting frame. The second rotating shaft is arranged on the sliding frame. The two ends of the support frame are respectively rotatably connected to the first rotating shaft and the second rotating shaft. The counterweight is slidably arranged on the support frame. The two ends of the traction rope are respectively connected to the vertical frame body and the counterweight. A steering wheel is rotatably arranged on the second rotating shaft. The steering wheel is arranged in the steering groove.

[0010] Both ends of the support frame are respectively provided with a first rotating shaft sleeve and a second rotating shaft sleeve. The first rotating shaft sleeve is rotatably connected to the first rotating shaft. The second rotating shaft sleeve is rotatably connected to the second rotating shaft. A steering groove is opened at the central position of the second rotating shaft sleeve. A wire management hole is arranged on the support frame close to the steering groove.

[0011] The traction rope is connected to the position of the vertical frame body close to the hoisting frame. After the traction rope is wound around the steering wheel, it is connected to the counterweight through the wire management hole. A damping ring is arranged at the sliding connection position of the counterweight and the support frame. Shock pads are fixedly connected to the positions on both sides of the support frame that can contact the counterweight.

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

[0013] 1. In the present invention, by setting a counterweight and a towing rope, when the AC swing head machine head rises to the upper part of the first track, the support frame pushes the sliding frame to move to one side of the second track away from the vertical frame body. The towing rope rotates along with the second rotating shaft, and the steering wheel on the second rotating shaft supports the towing rope, so that the towing rope pulls the counterweight through the wire arranging hole. When the sliding frame is on the side away from the vertical frame body, the towing rope pulls the counterweight to move upward, and the counterweight slides to one side of the support frame close to the second rotating shaft sleeve. At this time, the counterweight is in a position away from the vertical frame body. By the lifting and lowering of the counterweight along with the AC swing head machine head and the movement of approaching and moving away from the vertical frame body, when the AC swing head machine head moves to the top of the vertical frame body, the counterweight also moves to one end of the second track away from the vertical frame body and slides to one end of the support frame close to the second rotating shaft sleeve to maintain the balance of the vertical frame body. When the AC swing head machine head descends, the counterweight also slides towards the first rotating shaft sleeve to reduce the influence on the center of gravity of the vertical frame body. The counterweight can be adjusted according to the influence of the AC swing head machine head on the center of gravity of the vertical frame body:

[0014] 2. In the present invention, by setting a balance maintaining mechanism, when the influence of the overall center of gravity offset of the vertical frame body gradually becomes larger as the AC swing head machine head moves upward, through the sliding of the counterweight upward and away from the vertical frame body, the counterweight can balance the center of gravity of the vertical frame body, and the magnitude of the balancing force automatically changes with the lifting and lowering of the AC swing head machine head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0016] Figure 1 is the overall structural schematic diagram of the present invention;

[0017] Figure 2 is the structural schematic diagram of another perspective of the whole of the present invention;

[0018] Figure 3 is the structural schematic diagram of the balance maintaining mechanism cooperating with the vertical frame body of the present invention;

[0019] Figure 4 is the partial structural schematic diagram of the center of gravity moving component and the towing plate cooperating with each other in the present invention;

[0020] Figure 5 is the partial sectional structural schematic diagram of the sliding frame and the support frame cooperating with each other in the present invention;

[0021] Figure 6 is the partial structural schematic diagram of the sliding frame cooperating with the towing rope in the present invention.

[0022] In the figure: 1. X-axis track; 2. X-axis moving base; 3. AC swing head machine head; 4. Vertical frame; 5. Track 1; 6. Motor; 7. Screw; 8. Lifting strip 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. Wire management hole; 22. Steering wheel; 23. Damping ring; 24. Shock pad. Detailed implementation manner

[0023] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0024] As Figures 1 to 6 shown, this embodiment proposes a Y-axis AC swing head moving device for the machine head of a numerical control 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, the Y-axis frame mechanism is fixedly installed on the X-axis moving base 2, an AC swing head machine head 3 is slidably connected to the Y-axis frame mechanism. The Y-axis frame mechanism is used to drive the AC swing head machine head 3 to move in the Y-axis direction. The balance maintaining mechanism is arranged on the Y-axis frame mechanism and is connected to the AC swing head machine head 3. The balance maintaining mechanism is used to keep the balance of the Y-axis frame mechanism when the Y-axis frame mechanism drives the AC swing head machine head 3 to move. A driving device is arranged on the X-axis track 1 to drive the X-axis base to move horizontally on the X-axis track 1. The AC swing head machine head 3 moves vertically on the vertical frame 4 for multi-angle processing. When the AC swing head machine head 3 moves, the balance maintaining mechanism moves accordingly, causing the position of the center of gravity on the vertical frame 4 to change, thereby maintaining the overall balance of the vertical frame 4.

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

[0026] As Figures 1 to 4 shown, the balance maintaining mechanism includes a lifting frame 10, a second track 11, a sliding frame 12, and a center of gravity moving component. The lifting frame 10 is fixedly connected to the top of the vertical frame body 4 on the side away from the AC swing head machine head 3. The second track 11 is opened on the lifting frame 10. The sliding frame 12 is slidably connected in the second track 11. The center of gravity moving component is arranged on the vertical frame body 4. The center of gravity moving component is rotatably connected to the sliding frame 12. The center of gravity moving component is used to maintain the balance of the vertical frame body 4 when the AC swing head machine head 3 vertically moves up and down. A plurality of rollers are arranged on the sliding frame 12. The sliding frame 12 slides in the second track 11 through the rollers. The sliding clamp is arranged below the lifting frame 10.

[0027] As Figures 3 to 6As shown in the figure, the center-of-gravity moving component 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 one end of the traction plate 9 away from the AC swing head machine head 3. The first rotating shaft 13 is on the side of the vertical frame body 4 close to the lifting frame 10. The second rotating shaft 14 is arranged on the sliding frame 12. The two ends of the support frame 15 are respectively rotationally connected to the first rotating shaft 13 and the second rotating shaft 14. The counterweight 16 is slidably arranged on the support frame 15. The two ends of the traction rope 17 are respectively connected to the vertical frame body 4 and the counterweight 16. A steering wheel 22 is rotatably arranged on the second rotating shaft 14. The steering wheel 22 is arranged in the steering groove 20. When the screw rod 7 drives the AC swing head machine head 3 to rise and fall, the traction plate 9 drives the first rotating shaft 13 to rise and fall through the lifting strip groove 8. 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 through the second rotating shaft 14. When the AC swing head machine head 3 rises to the upper part of the first track 5, the support frame 15 pushes the sliding frame 12 to move to the side of the second track 11 away from the vertical frame body 4. The traction rope 17 rotates along with the second rotating shaft 14. The steering wheel 22 on the second rotating shaft 14 supports the traction rope 17, so that the traction rope 17 pulls the counterweight 16 through the wire management hole 21. When the sliding frame 12 is on the side away from the vertical frame body 4, the traction rope 17 pulls the counterweight 16 to move upward. The counterweight 16 slides to the side of the support frame 15 close to the second rotating shaft sleeve 19. At this time, the counterweight 16 is in a position away from the vertical frame body 4, and the AC swing head machine head 3 is at the upper part of the first track 5. Due to the lever principle, the farther the counterweight 16 is from the vertical frame body 4, the greater the influence on the center-of-gravity offset. At the same time, the farther the distance between the AC swing head machine head 3 and the connection points of the vertical frame body 4 and the X-axis moving base 2 is, the greater the influence on the center-of-gravity offset on the vertical frame body 4. By adjusting the weight of the counterweight 16, as well as the length of the lifting frame 10 and the traction rope 17, it can be ensured that during the rising process of the AC swing head machine head 3, the counterweight 16 moves upward and away from the vertical frame body 4, so as to relatively maintain the center of gravity of the vertical frame body 4 stable.

[0028] As Figures 3 to 5 shown in the figure, the two ends of the support frame 15 are respectively provided with a first rotating shaft sleeve 18 and a second rotating shaft sleeve 19. The first rotating shaft sleeve 18 is rotationally connected to the first rotating shaft 13. The second rotating shaft sleeve 19 is rotationally connected to the second rotating shaft 14. A steering groove 20 is opened at the central position of the second rotating shaft sleeve 19. A wire management hole 21 is arranged on the support frame 15 close to the steering groove 20. After being steered by the steering wheel 22, the traction rope 17 pulls the counterweight 16 through the wire management hole 21. The traction rope 17 passing through the wire management hole 21 can ensure that the traction direction of the counterweight 16 remains unchanged and is always parallel to the support frame 15, so that the moving distance of pulling the counterweight 16 does not change with the rotation angle of the support frame 15.

[0029] As Figures 5 to 6As shown in the figure, the towing rope 17 is connected to the position on the vertical frame body 4 close to the hoisting frame 10. After the towing rope 17 is wound around the steering wheel 22, it is connected to the counterweight 16 through the wire arranging hole 21. A damping ring 23 is arranged at the sliding connection position of the counterweight 16 and the support frame 15. Shock pads 24 are fixedly connected to the positions on both sides of the support frame 15 that can contact the counterweight 16. The damping ring 23 can decelerate the sliding of the counterweight 16, avoiding the reciprocating sliding of the counterweight 16 on the support frame 15 during the rapid lifting and lowering of the AC swing head machine head 3. Avoiding the reciprocating sliding of the counterweight 16 can also prevent the counterweight 16 from causing vibration of the vertical frame body 4. At the same time, the shock pads 24 are provided to prevent the counterweight 16 from impacting both sides of the support frame 15.

[0030] In this embodiment, the output end of the motor 6 drives the screw rod 7 to rotate. The screw rod 7 drives the AC swing head mechanism to rise on the track 1 5. At this time, the towing plate 9 drives the rotating shaft 1 13 to move upward. The rotating shaft 1 13 pushes the support frame 15 to rotate. The support frame 15 pushes the sliding frame 12 to slide on the track 2 11. At this time, the rotating shaft sleeve 1 18 rotates on the rotating shaft 1 13, and the rotating shaft sleeve 2 19 rotates on the rotating shaft 2 14. At this time, the steering wheel 22 pushes the towing rope 17. The towing rope 17 pulls the counterweight 16 through the wire arranging hole 21, causing the counterweight 16 to slide towards the rotating shaft sleeve 2 19. When the AC swing head machine head 3 slides to the top of the track 1 5, the counterweight 16 slides to one end of the support frame 15 close to the rotating shaft sleeve 2 19.

[0031] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A Y-axis AC swing head moving device for a CNC machine tool, comprising an X-axis track (1), characterized in that: Also includes: An X-axis movable base (2), wherein the X-axis movable base (2) is slidably connected to the X-axis track (1); A Y-axis frame mechanism, the Y-axis frame mechanism is fixedly mounted on the X-axis movable base (2), an AC swing head (3) is slidably connected to the Y-axis frame mechanism, and the Y-axis frame mechanism is used to drive the AC swing head (3) to move in the Y-axis direction; A balance maintaining mechanism, wherein the balance maintaining mechanism is arranged on the Y-axis frame mechanism, the balance maintaining mechanism is connected to the AC swing head (3), and the balance maintaining 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.

2. The Y-axis AC swing head moving device for a CNC machine tool according to claim 1, characterized in that: The Y-axis frame mechanism comprises: A vertical frame (4), wherein the vertical frame (4) is fixedly connected to the X-axis movable base (2), and the balance maintaining mechanism is arranged on one side of the vertical frame (4); Track 1 (5), the track 1 (5) is vertically arranged on a side of the vertical frame (4) away from the balance maintaining mechanism, and the AC swing head (3) is slidably connected to the track 1 (5); A motor (6), wherein the motor (6) is fixedly mounted on the top of the vertical frame (4), a screw rod (7) is fixedly connected to the output end of the motor (6), the screw rod (7) is rotatably connected to the vertical frame (4), and the screw rod (7) penetrates and is threadedly connected to the AC swing head machine head (3).

3. The Y-axis AC swing head moving device for a CNC machine tool according to claim 2, characterized in that: The vertical frame (4) is provided with a lifting strip groove (8), the lifting strip groove (8) is vertically arranged, and the lifting strip groove (8) passes through the vertical frame (4).

4. The Y-axis AC swing head moving device for a CNC machine tool according to claim 3, characterized in that: The AC swing head machine head (3) is provided with a traction plate (9), the traction plate (9) is fixedly connected to the AC swing head machine head (3), and the traction plate (9) passes through the lifting bar groove (8).

5. The Y-axis AC swing head moving device for a CNC machine tool according to claim 4, characterized in that: The balance maintaining mechanism comprises: A hanging frame (10), the hanging frame (10) being fixedly connected to the top of the vertical frame (4) on a side away from the AC swing head machine head (3); Track 2 (11), the track 2 (11) is arranged on the hanging frame (10); A sliding frame (12), wherein the sliding frame (12) is slidably connected to the second track (11); A center of gravity moving component is arranged on the vertical frame (4), the center of gravity moving component is rotationally connected to the sliding frame (12), and the center of gravity moving component is used to maintain the balance of the vertical frame (4) when the AC swing head machine head (3) is vertically raised or lowered.

6. The head Y-axis AC swing moving device of a CNC machine tool according to claim 5, characterized in that: The center of gravity moving component includes: A rotating shaft (13), the rotating shaft (13) being fixedly connected to an end of the traction plate (9) away from the AC swing head (3), and the rotating shaft (13) being on a side of the vertical frame (4) close to the hanging frame (10); A second rotating shaft (14), wherein the second rotating shaft (14) is arranged on the sliding frame (12); A support frame (15), wherein the support frame (15) is rotatably connected to the first rotating shaft (13) and the second rotating shaft (14) respectively; A counterweight block (16), the counterweight block (16) being slidably disposed on the support frame (15); A traction rope (17), wherein two ends of the traction rope (17) are respectively connected to the vertical frame (4) and the counterweight (16).

7. The head Y-axis AC swing moving device of a CNC machine tool according to claim 6, characterized in that: A rotating shaft sleeve 1 (18) and a rotating shaft sleeve 2 (19) are respectively provided at both ends of the support frame (15); the rotating shaft sleeve 1 (18) is rotatably connected to the rotating shaft 1 (13); the rotating shaft sleeve 2 (19) is rotatably connected to the rotating shaft 2 (14); a steering groove (20) is provided at the central position of the rotating shaft sleeve 2 (19); and a wire management hole (21) is provided on the support frame (15) near the steering groove (20).

8. The Y-axis AC swing head moving device for a CNC machine tool according to claim 7, characterized in that: A steering wheel (22) is rotatably arranged on the second rotating shaft (14), and the steering wheel (22) is arranged in the steering groove (20).

9. The head Y-axis AC swing moving device of a CNC machine tool according to claim 8, characterized in that: The traction rope (17) is connected to a position on the vertical frame (4) close to the hanging frame (10); after the traction rope (17) is wound around the steering wheel (22), it is connected to the counterweight block (16) through the wire arrangement hole (21).

10. The head Y-axis AC swing moving device of a CNC machine tool according to claim 9, characterized in that: A damping ring (23) is provided at the sliding connection between the counterweight block (16) and the support frame (15), and shock-absorbing pads (24) are fixedly connected to positions on both sides of the support frame (15) that can contact the counterweight block (16).

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