High-precision numerical control swing head transmission mechanism

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a high-precision numerical control swing head transmission mechanism which comprises a supporting column, an installation base is fixedly installed at the top end of the supporting column, a first position adjusting lead screw is rotatably installed on one side of the installation base, a transmission assembly is arranged on one side of the installation base and provided with a movable block, and a second position adjusting lead screw is rotatably installed on the movable block. A sliding rail matched with the movable block in an adaptive mode is installed on one side of the installation base, the movable block is installed on one side of the installation base in a sliding mode through the sliding rail, the movable block is in threaded connection with the first position adjusting lead screw through a transmission block, and a first servo motor is installed at the front position of one side of the installation base. Through the transmission assembly, the swing head body can be independently adjusted to move up and down, the position of the swing head body can be conveniently and independently adjusted according to needs, the use flexibility is high, a belt and a belt wheel are not matched for transmission, it is avoided that slipping affects the moving precision of the swing head, maintenance is convenient, and the transmission precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically a high-precision CNC swivel head transmission mechanism. Background Technology

[0002] The oscillating head is an important component in CNC machine tools such as five-axis machining centers. It allows the tool or workpiece to oscillate in space to achieve precise machining. The oscillating head is usually mounted on the spindle or worktable of the machine tool and adjusts the spatial posture of the tool by rotating and oscillating.

[0003] A search revealed a Chinese patent for a swivel transmission mechanism for machining and assembly on a five-axis CNC machine tool, publication number CN217776225U. The mechanism includes a base and support columns fixedly connected to the two sides of the base. Each of the two support columns has a fixed box fixedly connected to its top. A fixed rod is slidably connected inside the fixed box, and a drive assembly is provided inside the fixed box.

[0004] The above-mentioned device drives the fixed rod and the connecting rod to slide through the drive component. The sliding of the fixed rod drives the fixed sleeve, the moving plate and the swing head to slide left and right, thereby realizing the function of up, down and left and right by driving the swing head through the driving force of a drive source.

[0005] However, its transmission structure is relatively simple. When adjusting the position, it requires linkage transmission, making it difficult to make individual adjustments. The adjustment accuracy is poor, affecting the flexibility of use. Furthermore, the position of the oscillating head is adjusted by gear meshing with the transmission belt. The belt relies on friction to transmit power. At the same time, due to the elastic deformation and slippage of the belt, it is difficult to achieve high-precision transmission, affecting the movement accuracy of the oscillating head. Utility Model Content

[0006] The purpose of this invention is to provide a high-precision CNC swing head transmission mechanism, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-precision CNC oscillating head transmission mechanism includes a support column, a mounting base fixedly installed at the top of the support column, an adjusting screw 1 rotatably installed on one side of the mounting base, and a transmission assembly provided on one side of the mounting base, the transmission assembly having a movable block;

[0009] A slide rail adapted to the movable block is installed on one side of the mounting base. The movable block is slidably installed on one side of the mounting base via the slide rail. The movable block is threadedly connected to the adjusting screw through a transmission block. A servo motor is installed at the front position on one side of the mounting base. The drive shaft of the servo motor is connected to the front end of the adjusting screw. A movable frame is slidably installed on one side of the movable block via a slider. The swing head body is slidably installed on the lower side of the movable frame away from the movable block via a connecting frame.

[0010] The movable frame has adjustment slots on both sides. A lifting screw is rotatably installed in the adjustment slot near the front end of the movable frame, and an anti-detachment rod is installed in the adjustment slot near the rear end of the movable frame. A movable plate is slidably installed in the adjustment slot. The lifting screw is threadedly connected to the movable plate, and the anti-detachment rod is slidably connected to the movable plate. The sides of the two movable plates that are far apart from each other are fixedly connected to the inner wall of the connecting frame.

[0011] Preferably, a transmission rack is installed at one side of the top of the mounting base, and a transmission rod is rotatably installed through the upper and lower ends of the movable block. A drive gear is fixedly connected to the bottom end of the transmission rod, and the drive gear and the transmission rack are meshed.

[0012] Preferably, an auxiliary gear is fixedly connected to the top end of the transmission rod, and an adjusting screw is rotatably installed on the side of the movable block that is centered and away from the mounting seat. The outer ring of the adjusting screw is threaded with a connecting block, and the connecting block is fixedly connected to the movable frame. The top end of the adjusting screw extends through the top end of the movable block.

[0013] Preferably, an auxiliary gear two is installed at the top of the adjusting screw two, and the auxiliary gear two is meshed with the auxiliary gear one.

[0014] Preferably, an adjustment gap is left between the movable frame and the second auxiliary gear, and a slide rod is provided on the side of the transmission rack away from the driving gear. The slide rod passes through the front and rear ends of the movable block, and the slide rod and the movable block are slidably connected.

[0015] Preferably, a second servo motor is installed at the front of the top of the movable frame. The drive shaft of the second servo motor passes through the upper and lower ends of the movable frame and is connected to the top of the lifting screw. A bearing is provided at the connection between the drive shaft of the second servo motor and the movable frame, and the drive shaft of the second servo motor is rotatably connected to the movable frame through the bearing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model, by setting up a transmission component in conjunction with the swing head body, allows the swing head body to move up and down and left and right through the cooperation of servo motor one, adjusting screw one, movable block, and movable frame when the position of the swing head body is adjusted. Furthermore, through the cooperation of lifting screw, servo motor two, and connecting frame, the swing head body can be adjusted to move up and down independently, making it convenient to adjust the position of the swing head body individually as needed, and providing high flexibility in use.

[0018] The position of the oscillating head body is adjusted by setting auxiliary gear one, auxiliary gear two, transmission rack, adjusting screw two, and lifting screw. The transmission is carried out without belt and pulley, which avoids slippage affecting the movement accuracy of the oscillating head. It also eliminates the need for additional tensioning wheels and other structures, thereby reducing structural complexity, facilitating maintenance, and improving transmission accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the high-precision CNC oscillating head transmission mechanism in this embodiment of the present invention;

[0020] Figure 2 This is a top view of the movable block, auxiliary gear 1, and movable frame in the embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the adjusting lead screw and the connecting block in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of auxiliary gear 2, auxiliary gear 1, and driving gear in the embodiment of this utility model.

[0023] In the diagram: 1. Support column; 2. Mounting base; 3. Adjustment screw one; 4. Servo motor one; 5. Transmission assembly; 6. Movable block; 7. Movable frame; 8. Slider; 9. Connecting frame; 10. Swing head body; 11. Servo motor two; 12. Lifting screw; 13. Adjustment screw two; 14. Connecting block; 15. Transmission rack; 16. Drive gear; 17. Auxiliary gear one; 18. Auxiliary gear two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Combination Figures 1-4A high-precision CNC oscillating head transmission mechanism includes a support column 1, a mounting base 2 fixedly installed at the top of the support column 1, an adjusting screw 3 rotatably installed on one side of the mounting base 2, and a transmission assembly 5 provided on one side of the mounting base 2, the transmission assembly 5 having a movable block 6.

[0027] See Figure 2 and Figure 3 Furthermore, a slide rail adapted to the movable block 6 is installed on one side of the mounting base 2. The movable block 6 is slidably installed on one side of the mounting base 2 via the slide rail. The movable block 6 is threadedly connected to the adjusting screw 3 via the transmission block. A servo motor 4 is installed at the front position on one side of the mounting base 2. The drive shaft of the servo motor 4 is connected to the front end of the adjusting screw 3. A movable frame 7 is slidably installed on one side of the movable block 6 via the slider 8. A swing head body 10 is slidably installed on the lower side of the movable frame 7 away from the movable block 6 via the connecting frame 9. A transmission rack 15 is installed at the top of the mounting base 2 on one side. A transmission rod is rotatably installed through the upper and lower ends of the movable block 6.

[0028] The bottom end of the transmission rod is fixedly connected to the drive gear 16, and the drive gear 16 is meshed with the transmission rack 15. The top end of the transmission rod is fixedly connected to the auxiliary gear 17. The inner center of the movable block 6 and the side away from the mounting base 2 is rotatably mounted with the adjusting screw 13. The outer ring of the adjusting screw 13 is threaded with the connecting block 14, and the connecting block 14 is fixedly connected to the movable frame 7. The top end of the adjusting screw 13 extends through the top end of the movable block 6. The top end of the adjusting screw 13 is mounted with the auxiliary gear 18, and the auxiliary gear 18 is meshed with the auxiliary gear 17. An adjustment gap is left between the movable frame 7 and the auxiliary gear 18. The side of the transmission rack 15 away from the drive gear 16 is provided with a slide rod, which passes through the front and rear ends of the movable block 6, and the slide rod is slidably connected to the movable block 6.

[0029] Specifically, by starting the servo motor 4, its drive shaft rotates, causing the adjusting screw 3 to rotate. This screw pushes the movable block 6 to slide on the mounting base 2. Since the swing head body 10 is mounted on the movable block 6 through various components, the position of the swing head body 10 is adjusted. When the movable block 6 moves, the drive gear 16 meshes with the transmission rack 15, and the drive gear 16 is connected to the auxiliary gear 17 through the transmission rod. At the same time, the auxiliary gear 17 meshes with the auxiliary gear 18, and the auxiliary gear 18 is connected to the top of the adjusting screw 13. Thus, when the movable block 6 slides, the meshing transmission of the auxiliary gear 17 and the auxiliary gear 18 drives the adjusting screw 13 to rotate. The adjusting screw 13 pushes the movable frame 7 up and down, thereby moving the swing head body 10. This achieves the function of driving the swing head body 10 to move through a single servo motor 4.

[0030] Example 2

[0031] See Figure 3 and Figure 4 Furthermore, based on Embodiment 1, the movable frame 7 has adjustment slots on both sides. A lifting screw 12 is rotatably installed in the adjustment slot near the front end of the movable frame 7, and an anti-detachment rod is provided in the adjustment slot near the rear end of the movable frame 7. A movable plate is slidably installed in the adjustment slot. The lifting screw 12 is threadedly connected to the movable plate, and the anti-detachment rod is slidably connected to the movable plate. The sides of the two movable plates that are far apart from each other are fixedly connected to the inner wall of the connecting frame 9. A servo motor 2 11 is installed at the front of the top of the movable frame 7. The drive shaft of the servo motor 2 11 passes through the upper and lower ends of the movable frame 7 and is connected to the top of the lifting screw 12. A bearing is provided at the connection between the drive shaft of the servo motor 2 11 and the movable frame 7, and the drive shaft of the servo motor 2 11 is rotatably connected to the movable frame 7 through the bearing.

[0032] Specifically, since the swing head body 10 is slidably mounted on the movable frame 7 via the connecting frame 9, and the connecting frame 9 is threadedly connected to the servo motor 11, when the position of the swing head body 10 is adjusted, the connecting frame 9 can be slid on the movable frame 7 by activating the servo motor 11, thereby adjusting the installation height of the swing head body 10. In this way, the swing head body 10 can be adjusted to move up and down independently, thereby improving the flexibility of use.

[0033] In actual operation, by starting the servo motor 4, its drive shaft can rotate, driving the adjusting screw 3 to rotate, which in turn pushes the movable block 6 to slide on the mounting base 2. Since the swing head body 10 is mounted on the movable block 6 through various components, the position of the swing head body 10 is adjusted. When the movable block 6 moves, the drive gear 16 meshes with the transmission rack 15, and the drive gear 16 is connected to the auxiliary gear 17 through the transmission rod. At the same time, the auxiliary gear 17 meshes with the auxiliary gear 18, and the auxiliary gear 18 is connected to the top of the adjusting screw 13. Thus, when the movable block 6 slides, the meshing transmission of the auxiliary gear 17 and the auxiliary gear 18 can drive the adjusting screw 13 to rotate. The adjusting screw 13 pushes the movable frame 7 up and down, thereby driving the swing head body 10 to move. This achieves the function of one servo motor 4 driving the swing head body 10 to move and adjust to different positions.

[0034] Meanwhile, since the swing head body 10 is slidably mounted on the movable frame 7 via the connecting frame 9, and the connecting frame 9 is threadedly connected to the servo motor 11, when the position of the swing head body 10 is adjusted, the connecting frame 9 can be slid on the movable frame 7 by starting the servo motor 11, so as to adjust the installation height of the swing head body 10. In this way, the swing head body 10 can be adjusted to move up and down independently, thereby improving the flexibility of use.

[0035] Furthermore, by adjusting the rotation of the servo motor 11 in conjunction with the adjustment of the servo motor 4, the swing head body 10 can be maintained at a suitable height for movement. The transmission components are gear meshing or threaded engagement, rather than belt and pulley transmission, which avoids belt slippage affecting the movement accuracy of the swing head. It also eliminates the need for additional tensioning pulleys and other structures, reducing structural complexity, facilitating maintenance, improving transmission accuracy, and preventing excessive noise from the belt when the tension is insufficient or the belt is worn out.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision CNC oscillating head transmission mechanism, comprising a support column (1), wherein a mounting base (2) is fixedly installed at the top of the support column (1), and an adjusting screw (3) is rotatably installed on one side of the mounting base (2), characterized in that: A transmission assembly (5) is provided on one side of the mounting base (2), and the transmission assembly (5) has a movable block (6); A slide rail adapted to the movable block (6) is installed on one side of the mounting base (2). The movable block (6) is slidably installed on one side of the mounting base (2) via the slide rail. The movable block (6) is threadedly connected to the adjusting screw (3) via the transmission block. A servo motor (4) is installed at the front position on one side of the mounting base (2). The drive shaft of the servo motor (4) is connected to the front end of the adjusting screw (3). A movable frame (7) is slidably installed on one side of the movable block (6) via the slider (8). The swing head body (10) is slidably installed on the lower side of the movable frame (7) away from the movable block (6) via the connecting frame (9). The movable frame (7) has adjustment slots on both sides. A lifting screw (12) is rotatably installed in the adjustment slot near the front end of the movable frame (7), and an anti-detachment rod is installed in the adjustment slot near the rear end of the movable frame (7). A movable plate is slidably installed in the adjustment slot. The lifting screw (12) is threadedly connected to the movable plate, and the anti-detachment rod is slidably connected to the movable plate. The side of the two movable plates that is far away from each other is fixedly connected to the inner wall of the connecting frame (9).

2. The high-precision CNC oscillating head transmission mechanism according to claim 1, characterized in that: A transmission rack (15) is installed on one side of the top of the mounting base (2). A transmission rod is rotatably installed through the upper and lower ends of the movable block (6). A drive gear (16) is fixedly connected to the bottom end of the transmission rod, and the drive gear (16) and the transmission rack (15) are meshed.

3. The high-precision CNC oscillating head transmission mechanism according to claim 2, characterized in that: An auxiliary gear (17) is fixedly connected to the top of the transmission rod. An adjusting screw (13) is rotatably installed on the side of the movable block (6) that is centered and away from the mounting base (2). A connecting block (14) is threadedly connected to the outer ring of the adjusting screw (13), and the connecting block (14) is fixedly connected to the movable frame (7). The top of the adjusting screw (13) extends through the top of the movable block (6).

4. The high-precision CNC oscillating head transmission mechanism according to claim 3, characterized in that: The top of the adjusting screw 2 (13) is equipped with an auxiliary gear 2 (18), which is meshed with the auxiliary gear 1 (17).

5. The high-precision CNC oscillating head transmission mechanism according to claim 4, characterized in that: An adjustment gap is left between the movable frame (7) and the auxiliary gear (18). A slide rod is provided on the side of the transmission rack (15) away from the driving gear (16). The slide rod passes through the front and rear ends of the movable block (6), and the slide rod and the movable block (6) are slidably connected.

6. The high-precision CNC oscillating head transmission mechanism according to claim 1, characterized in that: A servo motor 2 (11) is installed at the front of the top of the movable frame (7). The drive shaft of the servo motor 2 (11) passes through the upper and lower ends of the movable frame (7) and is connected to the top of the lifting screw (12). A bearing is provided at the connection between the drive shaft of the servo motor 2 (11) and the movable frame (7), and the drive shaft of the servo motor 2 (11) is rotatably connected to the movable frame (7) through the bearing.

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