A rotary table for CNC machining

Abstract

This utility model discloses a rotary table for CNC machining, including a table surface. A rotating column is vertically rotatable on the upper surface of the table surface. A rotating disk is fixedly mounted on the upper end of the rotating column. An angle adjustment disk is mounted above the rotating disk, and an angle adjustment mechanism is provided between the rotating disk and the angle adjustment disk. Clamping mechanisms are provided on both sides of the upper surface of the angle adjustment disk. A fixed support plate is provided below the table surface. Fixed rods are fixed between the four corners of the upper surface of the fixed support plate and the bottom of the table surface. A motor is fixedly mounted on the upper surface of the fixed support plate. This utility model realizes the circumferential rotation and tilt angle adjustment of the part through the cooperation of the rotating disk and the angle adjustment disk. Multi-face machining can be completed without multiple clamping, avoiding clamping errors and surface scratches, and improving machining accuracy. The angle adjustment mechanism can accurately control the machining angle of the part, and the electromagnetic shaft lock can lock the rotation position, ensuring the machining accuracy of complex curved surfaces and multi-directional hole systems, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a rotary table for CNC machining. Background Technology

[0002] In the production of high-precision aluminum alloy die-cast parts, these parts often have complex curved surfaces, multi-directional hole systems, and thin-walled structures, such as automobile engine cylinder blocks and aerospace component housings. Their machining accuracy directly affects the sealing performance, mechanical strength, and assembly reliability of the products.

[0003] In existing technologies, traditional CNC machining often uses single-axis or three-axis machine tools with fixed worktables, which presents significant technical bottlenecks when machining high-precision aluminum alloy die-cast parts. Traditional machining methods cannot meet the needs of multi-station collaborative machining. High-precision aluminum alloy parts often require drilling, milling, and other operations on multiple surfaces. When using a fixed worktable, multiple clamping and positioning are required, which not only generates clamping errors but also causes scratches on the aluminum alloy surface due to repeated clamping. For example, parts such as automotive gearbox housings require the machining of multiple sets of intersecting hole systems. Traditional machining methods cause coaxiality deviations in the hole systems due to multiple clamping, affecting the dimensional accuracy and pass rate of the parts.

[0004] Therefore, a rotary table for CNC machining is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary table for CNC machining to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0007] This utility model provides a rotary worktable for CNC machining, including a table surface, a rotating column vertically rotatably mounted on the upper surface of the table surface, a rotating disk fixedly mounted on the upper end of the rotating column, an angle adjustment disk mounted above the rotating disk, and an angle adjustment mechanism between the rotating disk and the angle adjustment disk, and clamping mechanisms mounted on both sides of the upper surface of the angle adjustment disk.

[0008] A fixed support plate is provided below the platform. Fixed rods are fixed between the four corners of the upper surface of the fixed support plate and the bottom of the platform. A motor is fixed on the upper surface of the fixed support plate. A rotating shaft is fixed at the output end of the motor. The upper end of the rotating shaft is fixedly connected to the lower end of the rotating column. A limiting mechanism is provided on the shaft wall of the rotating shaft.

[0009] Preferably, the angle adjustment mechanism includes a support rod fixedly disposed in the middle of the upper surface of the rotating disk, a first U-shaped seat fixedly disposed at the center of the lower surface of the angle adjustment disk, the upper end of the support rod being rotatably connected to the first U-shaped seat, a first electric push rod disposed on one side between the rotating disk and the angle adjustment disk, and a second U-shaped seat fixedly disposed on one side of the upper surface of the rotating disk and one side of the lower surface of the angle adjustment disk, and the two ends of the first electric push rod being rotatably connected to the two second U-shaped seats respectively.

[0010] Preferably, the clamping mechanism includes a threaded seat fixedly disposed on the upper surface of the angle adjustment disc, the threaded seat having an internal threaded screw, one end of the screw having a clamping plate rotatably disposed thereon, and the other end of the screw having a knob fixedly disposed thereon.

[0011] Preferably, the bottom of the clamping plate is slidably in contact with the upper surface of the angle adjustment disc.

[0012] Preferably, the limiting mechanism includes an electromagnetic shaft lock sleeved around the rotating shaft, with L-shaped connecting rods fixedly provided on both sides of the electromagnetic shaft lock, and the lower ends of the two L-shaped connecting rods being fixedly connected to the upper surface of the fixed support plate.

[0013] Preferably, an annular receiving bin is fixedly provided on the upper surface of the platform and below the edge of the rotating disk, and the rotating column is located at the center of the annular receiving bin.

[0014] Preferably, support plates are fixedly provided on both sides of the lower surface of the table.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Improved multi-station machining and clamping accuracy: Through the cooperation of the rotary table and the angle adjustment table, the circumferential rotation and tilt angle adjustment of the parts can be realized. Multi-face machining can be completed without multiple clamping, avoiding the positioning errors and surface scratches caused by repeated clamping of traditional fixed worktables, and improving the coaxiality of hole machining and the machining accuracy of curved surfaces.

[0017] 2. Precise adjustment of angle and position: The angle adjustment coil swings around the support rod driven by the first electric push rod, which can precisely control the machining angle of the part; the electromagnetic shaft lock locks the shaft after being powered on, preventing the rotation position from shifting during the machining process and ensuring the machining accuracy of complex curved surfaces and multi-directional hole systems.

[0018] 3. Chip collection and worktable stability assurance: The annular receiving bin is set around the rotating column, which can effectively collect the chips generated during processing and avoid chip accumulation that scratches the surface of the parts; the support plate and the fixed tray form a stable support structure through the fixing rod, which enhances the rigidity of the worktable and reduces processing vibration. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention from a top angle;

[0020] Figure 2 This is a perspective view of the present invention viewed from an oblique angle.

[0021] Figure 3 This is a perspective view showing the connection between the rotating disk and the angle adjustment disk of this utility model.

[0022] In the diagram: 1. Tabletop; 2. Rotating column; 3. Rotary disk; 4. Angle adjustment disk; 5. Fixed support plate; 6. Fixed rod; 7. Motor; 8. Rotating shaft; 9. Support rod; 10. First U-shaped seat; 11. First electric push rod; 12. Second U-shaped seat; 13. Threaded seat; 14. Screw; 15. Clamping plate; 16. Knob; 17. Electromagnetic shaft lock; 18. L-shaped connecting rod; 19. Annular receiving bin; 20. Support plate. Detailed Implementation

[0023] A rotary table for CNC machining, such as Figure 1-3 As shown, the device includes a tabletop 1. Support plates 20 are fixedly installed on both sides of the lower surface of the tabletop 1 to stably support the tabletop 1. A rotating column 2 is vertically rotatably installed on the upper surface of the tabletop 1. A rotating disk 3 is fixedly installed at the upper end of the rotating column 2. An angle adjustment disk 4 is installed above the rotating disk 3. An angle adjustment mechanism is provided between the rotating disk 3 and the angle adjustment disk 4. The angle adjustment mechanism includes a support rod 9 fixedly installed in the middle of the upper surface of the rotating disk 3. A first U-shaped seat 10 is fixedly installed at the center of the lower surface of the angle adjustment disk 4. The upper end of the support rod 9 is rotatably connected to the first U-shaped seat 10. A first electric push rod 11 is provided on one side between the rotating disk 3 and the angle adjustment disk 4. A second U-shaped seat 12 is fixedly installed on one side of the upper surface of the rotating disk 3 and one side of the lower surface of the angle adjustment disk 4. The two ends of the first electric push rod 11 are rotatably connected to the two second U-shaped seats 12 respectively.

[0024] Clamping mechanisms are provided on both sides of the upper surface of the angle adjustment disk 4. The clamping mechanism includes a threaded seat 13 fixedly installed on the upper surface of the angle adjustment disk 4. The threaded seat 13 has a screw 14 inside its thread. One end of the screw 14 is rotatably equipped with a clamping plate 15, and the other end of the screw 14 is fixedly equipped with a knob 16. The bottom of the clamping plate 15 is slidably in contact with the upper surface of the angle adjustment disk 4. When the operator rotates the knob 16, the screw 14 can be rotated in the threaded seat 13, so that the clamping plate 15 slides along the surface of the angle adjustment disk 4 and clamps the parts.

[0025] A fixed support plate 5 is provided below the tabletop 1. Fixed rods 6 are fixed between the four corners of the upper surface of the fixed support plate 5 and the bottom of the tabletop 1. A motor 7 is fixed on the upper surface of the fixed support plate 5. A rotating shaft 8 is fixed at the output end of the motor 7. The upper end of the rotating shaft 8 is fixedly connected to the lower end of the rotating column 2. The shaft wall of the rotating shaft 8 is provided with a limiting mechanism, which includes an electromagnetic shaft lock 17 sleeved around the rotating shaft 8. L-shaped connecting rods 18 are fixed on both sides of the electromagnetic shaft lock 17, and the lower ends of the two L-shaped connecting rods 18 are fixedly connected to the upper surface of the fixed support plate 5. When it is not necessary to lock the rotating shaft 8, the electromagnetic shaft lock 17 is disconnected from the power supply, and its internal clamps will not contact the rotating shaft 8.

[0026] An annular receiving bin 19 is fixedly provided on the upper surface of the table 1 and below the edge of the rotating disk 3. The rotating column 2 is located at the center of the annular receiving bin 19. The chips generated during the processing fall into the annular receiving bin 19 on the table 1 due to gravity, which is convenient for centralized collection and processing.

[0027] In summary: First, the high-precision aluminum alloy die-cast part is placed on the upper surface of the angle adjustment plate 4. By operating the knob 16 of the clamping mechanism, the screw 14 is rotated in the threaded seat 13, so that the clamping plate 15 slides along the surface of the angle adjustment plate 4 and clamps the part, thus fixing the workpiece. Next, the motor 7 is started, and the rotating shaft 8 at its output end drives the rotating column 2 to rotate, which in turn drives the rotating plate 3 to rotate synchronously with the angle adjustment plate 4, completing the circumferential position adjustment of the part and meeting the multi-station processing requirements.

[0028] When it is necessary to adjust the tilt angle of the part, the first electric push rod 11 of the angle adjustment mechanism extends and retracts, and pushes the angle adjustment disk 4 to swing around the rotation connection point between the support rod 9 and the first U-shaped seat 10 through the second U-shaped seat 12 at both ends, so as to achieve precise adjustment of the tilt angle of the part processing.

[0029] During processing, the generated chips fall into the annular receiving bin 19 on the table 1 due to gravity, which is convenient for centralized collection and processing. When it is necessary to fix the rotation position, the power supply of the electromagnetic shaft lock 17 is turned on, which makes the electromagnetic shaft lock 17 magnetic. The clamp inside the electromagnetic shaft lock 17 locks the rotating shaft 8 to suppress rotation and ensure the positional accuracy during processing. The support plates 20 on both sides of the lower surface of the table provide stable support for the entire worktable and ensure the smoothness of the processing.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary table for CNC machining comprising a table top (1), characterised in that: The upper surface of the table (1) is vertically rotatably provided with a rotating column (2), and a rotating disk (3) is fixedly provided at the upper end of the rotating column (2). An angle adjustment disk (4) is provided above the rotating disk (3), and an angle adjustment mechanism is provided between the rotating disk (3) and the angle adjustment disk (4). A clamping mechanism is provided on both sides of the upper surface of the angle adjustment disk (4). A fixed support plate (5) is provided below the tabletop (1). A fixed rod (6) is fixed between the four corners of the upper surface of the fixed support plate (5) and the bottom of the tabletop (1). A motor (7) is fixed on the upper surface of the fixed support plate (5). A rotating shaft (8) is fixed at the output end of the motor (7). The upper end of the rotating shaft (8) is fixedly connected to the lower end of the rotating column (2). A limiting mechanism is provided on the shaft wall of the rotating shaft (8).

2. The rotary table for CNC machining according to claim 1, characterized in that: The angle adjustment mechanism includes a support rod (9) fixedly disposed in the middle of the upper surface of the rotating disk (3), a first U-shaped seat (10) fixedly disposed at the center of the lower surface of the angle adjustment disk (4), the upper end of the support rod (9) being rotatably connected to the first U-shaped seat (10), a first electric push rod (11) disposed on one side between the rotating disk (3) and the angle adjustment disk (4), and a second U-shaped seat (12) fixedly disposed on one side of the upper surface of the rotating disk (3) and one side of the lower surface of the angle adjustment disk (4), and the two ends of the first electric push rod (11) being rotatably connected to the two second U-shaped seats (12) respectively.

3. The rotary table for CNC machining according to claim 1, characterized in that: The clamping mechanism includes a threaded seat (13) fixedly disposed on the upper surface of the angle adjustment disc (4). The threaded seat (13) has a screw (14) with an internal thread. One end of the screw (14) is rotatably provided with a clamping plate (15), and the other end of the screw (14) is fixedly provided with a knob (16).

4. The rotary table for CNC machining according to claim 3, characterized in that: The bottom of the clamp (15) is slidably in contact with the upper surface of the angle adjustment disc (4).

5. The rotary table for CNC machining according to claim 1, characterized in that: The limiting mechanism includes an electromagnetic shaft lock (17) sleeved around the rotating shaft (8). Both sides of the electromagnetic shaft lock (17) are fixedly provided with L-shaped connecting rods (18), and the lower ends of the two L-shaped connecting rods (18) are fixedly connected to the upper surface of the fixed support plate (5).

6. The rotary table for CNC machining according to claim 1, characterized in that: An annular receiving bin (19) is fixedly provided on the upper surface of the table (1) and below the edge of the rotating disk (3), and the rotating column (2) is located at the center of the annular receiving bin (19).

7. The rotary table for CNC machining according to claim 1, characterized in that: Support plates (20) are fixedly provided on both sides of the lower surface of the table (1).

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