Rotary driving device for precision machining

Abstract

The utility model relates to the technical field of driving, in particular to a rotary driving device for precision machining, which comprises a shell and a frame, the frame is fixedly connected below the shell, a speed change mechanism is arranged in the shell, a motor is fixedly connected to the outer wall of the shell, a second rotating rod is rotatably connected to the interior of the shell through a bearing, and the second rotating rod is fixedly connected to the outer wall of the shell through a bearing. And the lower end of the second rotating rod is fixedly connected with a second bevel gear set, the surface of the shell is rotationally connected with a protection plate through a hinge, and a locking mechanism is arranged in the protection plate. A first handle is rotated, the first handle drives a first screw rod to rotate, the first screw rod drives a first threaded block to move, the first threaded block drives a driving frame to move, the driving frame drives a circular ring to slide, the circular ring slides on the outer wall of a first rotating rod, the contact position of the circular ring and a disc is changed, and the rotating speed of the disc is changed; therefore, the rotating speed of the external input shaft is adjusted, and the rotating speed can be conveniently adjusted according to actual use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of driving, in particular to a rotary driving device for precision machining. Background Art

[0002] As a common reducer, the slewing drive device achieves the deceleration effect by driving the slewing bearing through the motor.

[0003] For example, the rotary drive device for precision machining with patent number CN220082085U includes a shell, a rotary bearing is arranged on the upper part of the shell, a transmission assembly is arranged on the lower part, the transmission assembly includes a deceleration chamber, a deceleration gear linked to the rotary bearing is arranged in the deceleration chamber, a transmission shaft is arranged in the middle of the deceleration gear, one end of the transmission shaft is connected to the deceleration gear, and the other end extends to the outside of the deceleration chamber and is provided with a connecting plate. The above document still has deficiencies. When in use, a connecting plate is added to the outside of the transmission shaft, a through hole is opened on the connecting plate, and a pin is inserted in the through hole to connect the transmission of the drive motor. The output end is connected, and pins are provided in multiple through holes. Multiple pins are used to increase the connection points between the connecting plate and the drive motor. Compared with the key connection between a single drive shaft and the drive motor, multiple connection points have higher stability and can reduce the vibration of the drive shaft itself during the transmission process, thereby improving the processing accuracy. However, when the driving device in the above document is in use, the output speed of the motor is fixed after deceleration, which is not convenient for adjusting the speed according to actual use requirements. At the same time, the shell in the above document is designed as a closed structure. When damage occurs inside the shell, it is not convenient to repair the inside of the shell. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to adjust the rotation speed according to actual use requirements, and proposes a rotary drive device for precision machining.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rotary drive device for precision machining is designed, comprising a shell and a frame, wherein the frame is fixedly connected to the bottom of the shell, a speed change mechanism is arranged inside the shell, a motor is fixedly connected to the outer wall of the shell, a second rotating rod is rotatably connected to the inside of the shell through a bearing, a second bevel gear set is fixedly connected to the lower end of the second rotating rod, a protective plate is rotatably connected to the surface of the shell through a hinge, and a locking mechanism is arranged inside the protective plate.

[0007] Preferably, the speed change mechanism includes a first screw, the outer walls of both ends of the first screw are rotatably connected to the shell through bearings, a first handle is fixedly connected to the end of the first screw, the outer wall of the first screw is threadedly connected to a first threaded block, a driving frame is fixedly connected to the lower part of the first threaded block, the driving frame is fitted with the outer wall of the ring, the ring is slidingly connected to the outer wall of the first rotating rod, the outer walls of both ends of the first rotating rod are rotatably connected to the shell through bearings, the first rotating rod is fixedly connected to the output shaft of the motor, the outer wall of the ring is fitted with a disc, and the disc is fixedly connected to the upper end of the second rotating rod.

[0008] Preferably, the locking mechanism includes a second handle, which is rotatably connected to the protective plate via a bearing, the end of the second handle is fixedly connected to the first bevel gear group, the left and right sides of the first bevel gear group are fixedly connected to the second screw, the outer walls of both ends of the second screw are rotatably connected to the protective plate via a bearing, the outer wall of the second screw is threadedly connected to the second threaded block, the surface of the second threaded block is rotatably connected to a support rod via a pin shaft, the end of the support rod is rotatably connected to a cross rod via a pin shaft, the outer wall of the cross rod is fixedly connected to a locking rod, and the outer wall of the locking rod is clearance-matched with a locking hole set in the shell.

[0009] Preferably, a third rotating rod is fixedly connected to the left side of the second bevel gear set, and the outer wall of the third rotating rod is rotatably connected to the frame through a bearing.

[0010] Preferably, a connecting tube is fixedly connected to the end of the third rotating rod.

[0011] Preferably, a second sliding block is fixedly connected to the outer wall of the cross bar, the second sliding block is slidably connected to the outer wall of the second sliding bar, and both ends of the second sliding bar are fixedly connected to the protective plate.

[0012] The utility model proposes a rotary drive device for precision machining, which has the beneficial effects of: through the cooperation among the first screw, the first handle, the first threaded block, the driving frame, the ring, the first rotating rod and the disc, the first handle is rotated, the first handle drives the first screw to rotate, the first screw drives the first threaded block to move, the first threaded block drives the driving frame to move, the driving frame drives the ring to slide, the ring slides on the outer wall of the first rotating rod, the contact position between the ring and the disc changes, so that the rotation speed of the disc changes, and then the rotation speed of the external input shaft is adjusted, so that the rotation speed can be adjusted according to actual use requirements.

[0013] Through the cooperation between the second handle, the first bevel gear group, the second screw, the second threaded block, the support rod, the cross bar and the locking rod, the second handle drives the first bevel gear group to rotate, the first bevel gear group drives the two second screws to rotate, the second screw drives the second threaded block to move, the second threaded block drives the support rod to move, the support rod drives the cross bar to move, the second slider and the second slider guide the movement of the cross bar, the cross bar drives the locking rod to move, the locking rod is separated from the groove set in the shell, the protective plate is rotated, and the interior of the shell is repaired. When the interior of the shell is damaged, it is convenient to repair the interior of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the connection between the first screw rod, the driving frame and the circular ring in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the connection between the support rod, the cross rod and the locking rod in the utility model.

[0018] In the figure: 1, shell, 2, frame, 3, speed change mechanism, 301, first screw rod, 302, first handle, 303, first threaded block, 304, drive frame, 305, ring, 306, first rotating rod, 307, disk, 3a1, first slider, 3a2, first slide bar, 4, locking mechanism, 401, second handle, 402, first bevel gear set, 403, second screw rod, 404, second threaded block, 405, support rod, 406, cross bar, 407, locking rod, 5, motor, 6, second rotating rod, 7, second bevel gear set, 8, protective plate, 9, third rotating rod, 10, connecting tube, 11, second slider, 12, second slide bar. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] See attached Figure 1-4In this embodiment, a rotary drive device for precision machining includes a housing 1 and a frame 2. The frame 2 is fixedly connected to the bottom of the housing 1. A speed change mechanism 3 is arranged inside the housing 1. The speed change mechanism 3 adjusts the speed output by the motor 5. The motor 5 is fixedly connected to the outer wall of the housing 1. The second rotating rod 6 is rotatably connected to the inside of the housing 1 through a bearing. The lower end of the second rotating rod 6 is fixedly connected to the second bevel gear set 7. The second rotating rod 6 drives the second bevel gear set 7 to rotate. The surface of the housing 1 is rotatably connected to a protective plate 8 through a hinge. A locking mechanism 4 is arranged inside the protective plate 8. The locking mechanism 4 locks the protective plate 8. A third rotating rod 9 is fixedly connected to the left side of the second bevel gear set 7. The second bevel gear set 7 drives the third rotating rod 9 to rotate. The outer wall of the third rotating rod 9 is rotatably connected to the frame 2 through a bearing. A connecting cylinder 10 is fixedly connected to the end of the third rotating rod 9. The third rotating rod 9 drives the connecting cylinder 10 to rotate.

[0022] The speed change mechanism 3 includes a first screw rod 301, a first handle 302, a first threaded block 303, a driving frame 304, a ring 305, a first rotating rod 306 and a disk 307. The outer walls of both ends of the first screw rod 301 are rotatably connected to the housing 1 through bearings. The first handle 302 is fixedly connected to the end of the first screw rod 301, and the first handle 302 drives the first screw rod 301 to rotate. The outer wall of the first screw rod 301 is threadedly connected with the first threaded block 303. The first screw 301 drives the first threaded block 303 to move. The driving frame 304 is fixedly connected to the lower part of the first threaded block 303. The first threaded block 303 drives the driving frame 304 to move. 4 is fitted with the outer wall of the ring 305, the driving frame 304 drives the ring 305 to slide, the ring 305 is slidably connected with the outer wall of the first rotating rod 306, the ring 305 slides on the outer wall of the first rotating rod 306, the first rotating rod 306 drives the ring 305 to rotate when rotating, the outer walls of both ends of the first rotating rod 306 are rotatably connected with the housing 1 through bearings, the first rotating rod 306 is fixedly connected with the output shaft of the motor 5, the motor 5 drives the first rotating rod 306 to rotate, the outer wall of the ring 305 is fitted with the disk 307, the ring 305 drives the disk 307 to rotate, the disk 307 is fixedly connected to the upper end of the second rotating rod 6, and the disk 307 drives the second rotating rod 6 to rotate;

[0023] The first handle 302 is turned, and the first handle 302 drives the first screw 301 to rotate. The first screw 301 drives the first threaded block 303 to move. The first threaded block 303 drives the driving frame 304 to move. The driving frame 304 drives the ring 305 to slide. The ring 305 slides on the outer wall of the first rotating rod 306. The contact position between the ring 305 and the disk 307 changes, so that the rotation speed of the disk 307 changes, and then the rotation speed of the external input shaft is adjusted, so that the rotation speed can be adjusted according to actual usage requirements.

[0024] The locking mechanism 4 includes a second handle 401, a first bevel gear set 402, a second screw rod 403, a second threaded block 404, a support rod 405, a cross rod 406 and a locking rod 407. The second handle 401 is rotatably connected to the protective plate 8 through a bearing. The end of the second handle 401 is fixedly connected to the first bevel gear set 402. The second handle 401 drives the first bevel gear set 402 to rotate. The left and right sides of the first bevel gear set 402 are fixedly connected to the second screw rod 403. The first bevel gear set 402 drives the two second screw rods 403 to rotate. The outer walls of the two ends of the second screw 403 are rotatably connected to the protective plate 8 through bearings. The outer wall of the second screw 403 is threadedly connected to the second threaded block 404. The second screw 403 drives the second threaded block 404 to move. The surface of 404 is connected to a support rod 405 through a pin shaft rotation, and the second threaded block 404 drives the support rod 405 to move. The end of the support rod 405 is connected to a cross bar 406 through a pin shaft rotation, and the support rod 405 drives the cross bar 406 to move. The outer wall of the cross bar 406 is fixedly connected to a locking rod 407, and the cross bar 406 drives the locking rod 407 to move. The outer wall of the locking rod 407 is matched with the lock hole gap set in the shell 1, and the locking rod 407 is matched with the lock hole set in the shell 1 to fix the position of the protective plate 8. The outer wall of the cross bar 406 is fixedly connected to a second slider 11, and the second slider 11 is slidably connected to the outer wall of the second slide bar 12. The second slider 11 and the second slide bar 12 guide the movement of the cross bar 406, and both ends of the second slide bar 12 are fixedly connected to the protective plate 8.

[0025] The second handle 401 drives the first bevel gear set 402 to rotate, the first bevel gear set 402 drives the two second screws 403 to rotate, the second screw 403 drives the second threaded block 404 to move, the second threaded block 404 drives the support rod 405 to move, the support rod 405 drives the cross bar 406 to move, the second slider 11 and the second slider 12 guide the movement of the cross bar 406, the cross bar 406 drives the locking rod 407 to move, the locking rod 407 is separated from the groove set in the shell 1, the protective plate 8 is rotated, and the interior of the shell 1 is repaired. When the interior of the shell 1 is damaged, it is convenient to repair the interior of the shell 1.

[0026] Working principle:

[0027] When the rotary drive device for precision machining is in use, the connecting tube 10 is connected to the external input shaft, and the motor 5 is started. The motor 5 drives the first rotating rod 306 to rotate, the first rotating rod 306 drives the ring 305 to rotate, the ring 305 drives the disk 307 to rotate, the disk 307 drives the second rotating rod 6 to rotate, the second rotating rod 6 drives the second bevel gear set 7 to rotate, the second bevel gear set 7 drives the second rotating rod 9 to rotate, the second rotating rod 9 drives the connecting tube 10 to rotate, and then drives the external input shaft to rotate, rotate the first handle 302, the first handle 302 drives the first screw 301 to rotate, the first screw 301 drives the first threaded block 303 to move, the first threaded block 303 drives the driving frame 304 to move, the driving frame 304 drives the ring 305 to slide, the ring 305 slides on the outer wall of the first rotating rod 306, and the contact position of the ring 305 and the disk 307 The rotation speed of the disc 307 changes, and then the rotation speed of the external input shaft is adjusted, so that the rotation speed can be adjusted according to actual use requirements. When the interior of the shell 1 needs to be repaired, the second handle 401 is turned, and the second handle 401 drives the first bevel gear set 402 to rotate, and the first bevel gear set 402 drives the two second screws 403 to rotate, and the second screw 403 drives the second threaded block 404 to move, and the second threaded block 404 drives the support rod 405 to move, and the support rod 405 drives the cross bar 406 to move. The second slider 11 and the second slider 12 guide the movement of the cross bar 406, and the cross bar 406 drives the locking rod 407 to move, and the locking rod 407 is separated from the groove set in the shell 1, and the protective plate 8 is rotated to repair the interior of the shell 1. When the interior of the shell 1 is damaged, it is convenient to repair the interior of the shell 1.

[0028] Embodiment 2:

[0029] See attached Figure 1-4 : In this embodiment, a rotary drive device for precision machining, the speed change mechanism 3 also includes a first slider 3a1 and a first slide bar 3a2, the first slider 3a1 is fixedly connected to the outer wall of the first threaded block 303, the first threaded block 303 drives the first slider 3a1 to move, the first slider 3a1 is slidably connected to the outer wall of the first slide bar 3a2, the first slider 3a1 slides on the outer wall of the first slide bar 3a2, both ends of the first slide bar 3a2 are fixedly connected to the housing 1, and the first slider 3a1 and the first slide bar 3a2 guide the movement of the first threaded block 303;

[0030] Through the cooperation between the first slider 3a1 and the first slide rod 3a2, the first threaded block 303 drives the first slider 3a1 to move when moving, and the first slider 3a1 slides on the outer wall of the first slide rod 3a2. The first slider 3a1 and the first slide rod 3a2 guide the movement of the first threaded block 303.

[0031] Working principle:

[0032] The first threaded block 303 drives the first slider 3a1 to move when moving. The first slider 3a1 slides on the outer wall of the first slider rod 3a2. The first slider 3a1 and the first slider rod 3a2 guide the movement of the first threaded block 303.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A rotary drive device for precision machining, comprising a housing (1) and a frame (2), wherein the frame (2) is fixedly connected below the housing (1), and characterized in that: A speed change mechanism (3) is arranged inside the housing (1); a motor (5) is fixedly connected to the outer wall of the housing (1); a second rotating rod (6) is rotatably connected to the inside of the housing (1) via a bearing; a second bevel gear set (7) is fixedly connected to the lower end of the second rotating rod (6); a protective plate (8) is rotatably connected to the surface of the housing (1) via a hinge; a locking mechanism (4) is arranged inside the protective plate (8).

2. A rotary drive device for precision machining according to claim 1, characterized in that: The speed change mechanism (3) comprises a first screw rod (301), the outer walls of both ends of the first screw rod (301) are rotatably connected to the housing (1) via bearings, a first handle (302) is fixedly connected to the end of the first screw rod (301), the outer wall of the first screw rod (301) is threadedly connected to a first threaded block (303), a driving frame (304) is fixedly connected below the first threaded block (303), the driving frame (304) is fitted with the outer wall of a circular ring (305), the circular ring (305) is slidably connected to the outer wall of a first rotating rod (306), the outer walls of both ends of the first rotating rod (306) are rotatably connected to the housing (1) via bearings, the first rotating rod (306) is fixedly connected to the output shaft of the motor (5), the outer wall of the circular ring (305) is fitted with a circular disk (307), and the circular disk (307) is fixedly connected to the upper end of the second rotating rod (6).

3. A rotary drive device for precision machining according to claim 1, characterized in that: The locking mechanism (4) comprises a second handle (401), the second handle (401) is rotatably connected to the protective plate (8) via a bearing, the end of the second handle (401) is fixedly connected to a first bevel gear set (402), the left and right sides of the first bevel gear set (402) are fixedly connected to second screws (403), the outer walls of both ends of the second screw (403) are rotatably connected to the protective plate (8) via bearings, the outer wall of the second screw (403) is threadedly connected to a second threaded block (404), the surface of the second threaded block (404) is rotatably connected to a support rod (405) via a pin shaft, the end of the support rod (405) is rotatably connected to a cross rod (406) via a pin shaft, the outer wall of the cross rod (406) is fixedly connected to a locking rod (407), and the outer wall of the locking rod (407) is gap-matched with a locking hole provided in the housing (1).

4. A rotary drive device for precision machining according to claim 1, characterized in that: A third rotating rod (9) is fixedly connected to the left side of the second bevel gear set (7), and the outer wall of the third rotating rod (9) is rotatably connected to the frame (2) via a bearing.

5. A rotary drive device for precision machining according to claim 4, characterized in that: A connecting tube (10) is fixedly connected to the end of the third rotating rod (9).

6. A rotary drive device for precision machining according to claim 3, characterized in that: A second sliding block (11) is fixedly connected to the outer wall of the cross bar (406), the second sliding block (11) is slidably connected to the outer wall of the second sliding bar (12), and both ends of the second sliding bar (12) are fixedly connected to the protective plate (8).

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