High-stability rotary machining device of large machine tool

Abstract

The utility model provides a high-stability rotary machining device of a large machine tool, and relates to the technical field of rotary machining devices, the high-stability rotary machining device of the large machine tool comprises a shell, a rotary table and a supporting frame, a pressing mechanism is arranged at the top end of the supporting frame, a rotary mechanism is arranged in the shell, and limiting mechanisms are symmetrically arranged on the two sides of the shell; after a workpiece is placed on the top of the rotating table, the output end of the second hydraulic cylinder drives the pressing disc to move downwards, pressure is applied to the top of the workpiece through the pressing disc so that the workpiece can be limited from top to bottom, the output end of the first hydraulic cylinder drives the connecting frame to move forwards, and the connecting frame drives the sliding block to move towards the rolling wheels on the sliding rail. The sliding block drives the rotating arm to rotate clockwise with the pin shaft as the circle center, so that the rolling wheel at one end of the rotating arm is attached to the outer wall of the workpiece, the outer side of the workpiece is limited, and the problem that the workpiece is unstable in the rotating process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary processing devices, in particular to a high-stability rotary processing device for large machine tools. Background Art

[0002] A rotary machining device is a key component in large machine tools used to clamp workpieces and enable them to perform stable rotational motion. It is typically composed of a rotary table, a drive motor, a transmission mechanism, and a control system. The rotary table is manufactured from high-strength materials to ensure the stability of the workpiece during machining. The drive motor rotates the table through the transmission mechanism, achieving the workpiece's rotational motion. The control system is responsible for receiving instructions, monitoring the table's status, and adjusting its motion parameters. This device features high precision, high stability, and versatility, and is widely used in machining, automotive manufacturing, aerospace, and other fields, where it is an important guarantee for improving machining efficiency and workpiece quality.

[0003] When a workpiece needs to be processed, the workpiece is clamped on the rotary table. After the motor is started, the worktable is driven to rotate slowly through the reducer. At the same time, the hydraulic system applies a clamping force to the workpiece to ensure that the workpiece remains stable during the processing. However, when used in the processing of large workpieces, due to the large mass of the large workpiece, it is difficult to directly adjust its position after placing it on the rotary table. Often, the center of gravity of the large workpiece does not coincide with the center of gravity of the rotary table, resulting in instability during the rotation of the workpiece. Therefore, the utility model proposes a high-stability rotary processing device for large machine tools to solve the above problems. Utility Model Content

[0004] In response to the above problems, the present utility model proposes a high-stability rotary processing device for large machine tools to solve the problem in the existing technology that the large workpiece has a large mass, it is difficult to directly adjust its position and it does not coincide with the center of gravity of the rotary worktable, resulting in instability during the rotation of the workpiece.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a high-stability rotary processing device for a large machine tool, including a shell, a rotary table and a support frame, the top of the shell is rotatably connected to the rotary table, the back of the shell is fixedly connected to the support frame, the top of the support frame is provided with a clamping mechanism, the interior of the shell is provided with a rotating mechanism, and limiting mechanisms are symmetrically provided on both sides of the shell.

[0006] Further improvements are: the limiting mechanism includes a fixed frame, a rotating arm, a roller, a slide rail and a slider, the two sides of the shell are symmetrically fixedly connected with the fixed frame, the top of the fixed frame is rotatably connected to the rotating arm, one end of the rotating arm is hinged to the roller, the top of the rotating arm is fixedly connected to the slide rail, and the outer side of the slide rail is slidably connected to the slider.

[0007] A further improvement is that a No. 1 hydraulic cylinder is fixedly installed on the top of the fixing frame, the output end of the No. 1 hydraulic cylinder is fixedly connected to a connecting frame, and the bottom of the connecting frame is hinged to the top of the slider through a pin.

[0008] Further improvements are: the clamping mechanism includes a No. 2 hydraulic cylinder and a pressure plate, the No. 2 hydraulic cylinder is fixedly installed on the top of the support frame, the output end of the No. 2 hydraulic cylinder is hinged with a pressure plate, and the pressure plate is parallel to the center position of the rotating table.

[0009] Further improvements are: the rotating mechanism includes a worm wheel, a worm and a rotating motor, the bottom end of the rotating table is fixedly connected to the worm wheel, one side of the inside of the shell is rotatably connected to the worm, the worm wheel and the outer wall of the worm are engaged with each other, a rotating motor is provided on the outside of the shell, the output end of the rotating motor is connected to a reducer, and the reducer is fixedly connected to one end of the worm.

[0010] A further improvement is that: the top of the rotating platform is provided with positioning grooves and mounting holes, and the number is set to two groups, which are symmetrically distributed on both sides of the rotating platform.

[0011] A further improvement is that the positions of the two rollers are symmetrical, and a smooth silicone pad is provided on the outer side of the roller, and the silicone pad is fitted and connected to the outer wall of the workpiece.

[0012] The beneficial effects of the present invention are as follows: after the workpiece is placed on the top of the rotary table, the output end of the No. 2 hydraulic cylinder drives the pressure plate to move downward, so that the bottom end of the pressure plate fits with the top of the workpiece, and pressure is applied to the top of the workpiece by the pressure plate to limit the workpiece from top to bottom. The output end of the No. 1 hydraulic cylinder drives the connecting frame to move forward, and the connecting frame drives the slider to move toward the roller on the slide rail, and the slider drives the rotating arm to rotate clockwise with the pin as the center of the circle, so that the roller at one end of the rotating arm fits with the outer wall of the workpiece to limit the outside of the workpiece, so as to solve the problem in the prior art that the large workpiece has a large mass and is difficult to directly adjust its position and does not coincide with the center of gravity of the rotary worktable, resulting in instability during the rotation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the rotating mechanism structure of the present utility model.

[0016] Among them: 1. Shell; 2. Rotating table; 3. Support frame; 4. Fixed frame; 5. Rotating arm; 6. Roller; 7. Slide rail; 8. Slider; 9. Hydraulic cylinder No. 1; 10. Connecting frame; 11. Hydraulic cylinder No. 2; 12. Pressure plate; 13. Worm gear; 14. Worm; 15. Rotating motor. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0018] according to Figure 1 、 2 As shown in Figure 3, this embodiment proposes a high-stability rotary processing device for a large machine tool, including a shell 1, a rotary table 2 and a support frame 3. The top of the shell 1 is rotatably connected to the rotary table 2, and the back of the shell 1 is fixedly connected to the support frame 3. The top of the support frame 3 is provided with a clamping mechanism, the interior of the shell 1 is provided with a rotating mechanism, and the two sides of the shell 1 are symmetrically provided with limiting mechanisms. The workpiece is placed on the top of the rotary table 2, and the clamping mechanism applies pressure to the top of the workpiece to limit the workpiece from top to bottom. The rotating mechanism drives the workpiece to rotate and adjust the position through the rotary table 2, and the two limiting mechanisms are respectively fitted with the two sides of the workpiece to limit the outside of the workpiece, so that the workpiece is more stable during rotation.

[0019] The limiting mechanism includes a fixed frame 4, a rotating arm 5, a roller 6, a slide rail 7 and a slider 8. The two sides of the housing 1 are symmetrically fixedly connected with the fixed frame 4. The top of the fixed frame 4 is rotatably connected to the rotating arm 5. One end of the rotating arm 5 is hinged with a roller 6. The top of the rotating arm 5 is fixedly connected to the slide rail 7. The outer side of the slide rail 7 is slidably connected to the slider 8. The top of the fixed frame 4 is fixedly installed with a No. 1 hydraulic cylinder 9. The output end of the No. 1 hydraulic cylinder 9 is fixedly connected to a connecting frame 10. The bottom of the connecting frame 10 is connected by a pin. It is hinged to the top of the slider 8, and the output end of the No. 1 hydraulic cylinder 9 drives the connecting frame 10 to move forward. The connecting frame 10 drives the slider 8 to move toward the roller 6 on the slide rail 7. The slider 8 drives the rotating arm 5 to rotate clockwise with the pin as the center, so that the roller 6 at one end of the rotating arm 5 fits with the outer wall of the workpiece to limit the outer side of the workpiece. The output end of the No. 1 hydraulic cylinder 9 drives the connecting frame 10 to move backward and reset, and the rotating arm 5 can be driven to rotate counterclockwise through the connecting frame 10 and the slider 8. The rotating arm 5 can drive the roller 6 to separate from the outer wall of the workpiece.

[0020] The clamping mechanism includes a No. 2 hydraulic cylinder 11 and a pressure plate 12. The No. 2 hydraulic cylinder 11 is fixedly installed on the top of the support frame 3. The output end of the No. 2 hydraulic cylinder 11 is hinged with the pressure plate 12. The pressure plate 12 is parallel to the center position of the turntable 2. After the workpiece is placed on the top of the turntable 2, the output end of the No. 2 hydraulic cylinder 11 drives the pressure plate 12 to move downward, so that the bottom end of the pressure plate 12 is in contact with the top of the workpiece. Pressure is applied to the top of the workpiece through the pressure plate 12 to limit the workpiece from top to bottom.

[0021] The rotating mechanism includes a worm gear 13, a worm 14 and a rotating motor 15. The bottom end of the rotating table 2 is fixedly connected to the worm gear 13, and the worm 14 is rotatably connected to one side of the inside of the shell 1. The outer wall of the worm gear 13 and the worm 14 are engaged with each other. A rotating motor 15 is provided on the outside of the shell 1. The output end of the rotating motor 15 is connected to a reducer, and the reducer is fixedly connected to one end of the worm 14. The output end of the rotating motor 15 can drive the worm 14 to rotate inside the shell 1. The worm 14 is engaged with the outer wall of the worm gear 13, and the worm gear 13 is fixed to the rotating table 2 as a whole. The rotating motor 15 can drive the rotating table 2 to rotate at the top of the shell 1. The workpiece is installed on the top of the rotating table 2 to adjust the position of the workpiece.

[0022] The top of the rotating table 2 is provided with positioning grooves and mounting holes, and the number is set to two groups, symmetrically distributed on both sides of the rotating table 2. By aligning the positioning blocks at the bottom of the workpiece with the positioning grooves and mounting holes, the workpiece is positioned to improve the accuracy of the workpiece placement.

[0023] The positions of the two rollers 6 are symmetrical, and a smooth silicone pad is provided on the outside of the roller 6. The silicone pad is fitted and connected to the outer wall of the workpiece. The roller 6 is fitted to the outer wall of the workpiece through the smooth silicone pad to reduce the friction between the roller 6 and the workpiece, so that the workpiece rotates more smoothly.

[0024] The rotary processing device places the workpiece on the top of the rotary table 2, and the output end of the No. 2 hydraulic cylinder 11 drives the pressure plate 12 to move downward, so that the bottom end of the pressure plate 12 is in contact with the top of the workpiece, and pressure is applied to the top of the workpiece by the pressure plate 12 to limit the workpiece from top to bottom. The output end of the No. 1 hydraulic cylinder 9 drives the connecting frame 10 to move forward, and the connecting frame 10 drives the slider 8 to move toward the roller 6 on the slide rail 7. The slider 8 drives the rotating arm 5 to rotate clockwise with the pin as the center of the circle, so that the roller 6 at one end of the rotating arm 5 is in contact with the outer wall of the workpiece to limit the outer side of the workpiece, so as to solve the problem in the prior art that the large workpiece is heavy and it is difficult to directly adjust its position and it does not coincide with the center of gravity of the rotary worktable, resulting in instability during the rotation of the workpiece.

[0025] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-stability rotary processing device for a large machine tool, comprising a housing (1), a rotary table (2) and a support frame (3), characterized in that: The top of the shell (1) is rotatably connected to a rotating platform (2), the back of the shell (1) is fixedly connected to a support frame (3), the top of the support frame (3) is provided with a pressing mechanism, the interior of the shell (1) is provided with a rotating mechanism, and both sides of the shell (1) are symmetrically provided with limiting mechanisms; The limiting mechanism comprises a fixed frame (4), a rotating arm (5), a roller (6), a slide rail (7) and a slider (8); the fixed frames (4) are symmetrically fixedly connected to both sides of the housing (1); the top of the fixed frame (4) is rotatably connected to the rotating arm (5); one end of the rotating arm (5) is hinged to the roller (6); the top of the rotating arm (5) is fixedly connected to the slide rail (7); and the outer side of the slide rail (7) is slidably connected to the slider (8).

2. The high-stability rotary processing device for large machine tools according to claim 1, characterized in that: A No. 1 hydraulic cylinder (9) is fixedly mounted on the top of the fixed frame (4), an output end of the No. 1 hydraulic cylinder (9) is fixedly connected to a connecting frame (10), and the bottom of the connecting frame (10) is hinged to the top of the slider (8) via a pin.

3. The high-stability rotary processing device for large machine tools according to claim 1, characterized in that: The clamping mechanism comprises a No. 2 hydraulic cylinder (11) and a pressure plate (12); the No. 2 hydraulic cylinder (11) is fixedly mounted on the top of the support frame (3); the output end of the No. 2 hydraulic cylinder (11) is hingedly connected to the pressure plate (12); and the pressure plate (12) is vertically parallel to the center position of the rotating platform (2).

4. The high-stability rotary processing device for a large machine tool according to claim 1, characterized in that: The rotating mechanism comprises a worm wheel (13), a worm (14) and a rotating motor (15); the bottom end of the rotating platform (2) is fixedly connected to the worm wheel (13); one side of the interior of the housing (1) is rotatably connected to the worm wheel (14); the outer walls of the worm wheel (13) and the worm wheel (14) are meshed with each other; a rotating motor (15) is provided on the outside of the housing (1); the output end of the rotating motor (15) is connected to a reducer, and the reducer is fixedly connected to one end of the worm wheel (14).

5. The high-stability rotary processing device for large machine tools according to claim 1, characterized in that: The top of the rotating platform (2) is provided with positioning slots and mounting holes, which are arranged in two groups and are symmetrically distributed on both sides of the rotating platform (2).

6. The high-stability rotary processing device for a large machine tool according to claim 1, characterized in that: The positions of the two rollers (6) are centrally symmetrical, and a smooth silicone pad is provided on the outer side of the roller (6), and the silicone pad is fitted and connected to the outer wall of the workpiece.

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