Ultrahigh-precision rotary table with damping effect

Abstract

The utility model relates to the technical field of ultrahigh-precision rotary tables, in particular to an ultrahigh-precision rotary table with a damping effect. The ultrahigh-precision rotary table with the damping effect comprises a workbench, a mounting hole is formed in the top of the workbench in a penetrating mode, a screw rod is rotationally arranged in the mounting hole through a bearing, a worm wheel is arranged on the outer ring of the screw rod and located at the bottom of the workbench, a second motor is arranged at the bottom of the workbench, and the second motor is connected with the screw rod. A worm is arranged on the right side of the output end of the second motor, the worm is meshed with the worm gear, and the worm is rotationally arranged at the bottom of the workbench through a rotating shaft seat; the second motor drives the screw rod to rotate, when the screw rod rotates, the screw rod can drive the internal thread sleeve to move upwards, then the supporting table at the top of the internal thread sleeve is driven to move upwards, the effect of changing the height of the supporting table is achieved, and the reliability of height adjustment of the supporting table can be guaranteed through the self-locking performance of the worm gear and the worm.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-high precision turntables, in particular to an ultra-high precision turntable with a shock-absorbing effect. Background Art

[0002] The high-precision turntable is a measuring instrument used in the basic disciplines of engineering and technological science. It is widely used in national defense and military industry, medical equipment, automobile manufacturing, satellite navigation and positioning, robots, drones, intelligent manufacturing, agriculture, geological exploration, marine surveying and other fields.

[0003] The Chinese patent with announcement number CN215510945U discloses an ultra-high precision turntable with shock-absorbing effect, a frame, the frame includes a workbench, a motor and rotating teeth, the surface of the workbench is connected to the motor, and the output end of the motor is movably connected to the rotating teeth: a movable mechanism, the movable mechanism includes a screw, a rotating shaft, a connecting rod, a fixed column, a connecting column, a rotating handle and a rotating box, the surface of the workbench is movably connected to the movable mechanism, and the surface of the rotating teeth is movably connected to the screw. The utility model facilitates stabilizing the rotation of the rotating disk through the cooperation of the fixed groove, the abutment spring, the abutment block, the fixed plate and the rotating disk, and reduces the vibration of the rotating disk when it rotates by abutting the surface of the fixed plate with the abutment block, thereby ensuring the use effect of the device, improving the practicality of the device, and effectively increasing the accuracy of the measurement results;

[0004] The above-mentioned prior art solution has the following defects: the movable teeth are driven to rotate by rotating the rotating handle, and then the connecting column is driven to move up and down, so as to achieve the effect of changing the height of the rotating box. However, since there is no locking assembly, when the rotating box carries an object, its weight will cause the rotating box to drive the rotating handle to rotate in the opposite direction, thereby causing it to move downward, thereby reducing the reliability of the height adjustment of the device. In view of the above situation, technical innovation is carried out on the basis of the existing ultra-high precision turntable with shock-absorbing effect. Utility Model Content

[0005] The purpose of the utility model is to provide an ultra-high precision turntable with a shock-absorbing effect to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an ultra-high precision turntable with a shock-absorbing effect, comprising:

[0007] A workbench, a mounting hole is formed through the top of the workbench, a screw is rotatably arranged in the mounting hole through a bearing, a worm wheel is arranged on the outer ring of the screw, the worm wheel is located at the bottom of the workbench, a second motor is arranged at the bottom of the workbench, a worm is arranged on the right side of the output end of the second motor, and the worm is meshed with the worm wheel, wherein:

[0008] The worm is rotatably arranged at the bottom of the workbench through a rotating shaft seat, and the worm is located at the front side of the worm wheel.

[0009] Preferably, an outer side wall of the screw rod is threadedly connected with an internal threaded sleeve, the internal threaded sleeve is located above the workbench, and a support platform is arranged on the top of the internal threaded sleeve.

[0010] Preferably, hollow columns are evenly arranged on the top of the workbench, support columns are arranged inside the hollow columns, and the support columns are arranged at the bottom of the support platform.

[0011] Preferably, a groove is provided on the top of the support platform, a mounting groove is provided on the bottom of the inner wall of the groove, a first motor is arranged in the mounting groove, a first square rod is arranged on the top of the output end of the first motor, a square hole is provided on the top of the first square rod, a second square rod is arranged in the square hole, and a turntable is arranged on the top of the second square rod.

[0012] Preferably, the inner side walls of the square hole are provided with limit grooves on both sides, and the second square rod is provided with a group of limit blocks on both sides, and the limit blocks are arranged in the limit grooves.

[0013] Preferably, dampers are evenly arranged in a circular array at the bottom of the inner wall of the groove, a spring is arranged on the outer ring of the damper, the top of the spring is fixedly connected to the telescopic end of the damper, a ball is rollingly inlaid on the top of the telescopic end of the damper, and the top of the ball fits with the bottom of the turntable.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model drives the screw to rotate by the second motor, and the hollow column and the support column cooperate with each other. When the screw rotates, the internal threaded sleeve will be driven to move upward, and then the support platform on the top of the internal threaded sleeve will be driven to move upward, so as to achieve the effect of changing the height of the support platform. The self-locking property of the worm gear and the worm can ensure the reliability of the height adjustment of the support platform.

[0016] The turntable is driven to rotate by the first motor, and the ball bearings can assist the turntable to rotate stably. When the turntable vibrates due to the rotation, the shock absorber composed of a damper and a spring can make the turntable have good shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an ultra-high precision turntable with a shock-absorbing effect according to the utility model;

[0018] Figure 2 This is a right side sectional view of an ultra-high precision turntable with a shock absorbing effect according to the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged view of part A.

[0020] In the figure: 1. workbench; 11. hollow column; 12. support column; 13. screw; 14. internal threaded sleeve; 2. support platform; 21. turntable; 22. first motor; 23. first square rod; 24. second square rod; 25. damper; 26. spring; 27. ball; 3. second motor; 31. worm; 32. worm wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3An ultra-high precision turntable with a shock-absorbing effect comprises a workbench 1, a mounting hole is formed through the top of the workbench 1, a screw 13 is rotatably arranged in the mounting hole through a bearing, a worm wheel 32 is fixedly arranged on the outer ring of the screw 13, the worm wheel 32 is located at the bottom of the workbench 1, a second motor 3 is fixedly arranged at the bottom of the workbench 1, a worm 31 is fixedly arranged on the right side of the output end of the second motor 3, the worm 31 is meshed with the worm wheel 32, the worm 31 is rotatably arranged at the bottom of the workbench 1 through a rotating shaft seat, the worm 31 is located at the front side of the worm wheel 32, an inner threaded sleeve 14 is screwed to the outer wall of the screw 13, and the inner threaded sleeve 14 is located at Above the workbench 1, a support platform 2 is fixedly arranged on the top of the internally threaded sleeve 14, a hollow column 11 is evenly fixedly arranged on the top of the workbench 1, a support column 12 is slidably arranged inside the hollow column 11, and the support column 12 is fixedly arranged at the bottom of the support platform 2, and the worm 31 is driven to rotate by the second motor 3, and the worm 31 drives the screw 13 to rotate through the worm gear 32. Through the mutual cooperation of the hollow column 11 and the support column 12, when the screw 13 rotates, the internally threaded sleeve 14 will be driven to move upward, and then the support platform 2 on the top of the internally threaded sleeve 14 will be driven to move upward, so as to achieve the effect of changing the height of the support platform 2, and the worm gear 32 and the worm gear 32 are used to rotate the screw 13. The self-locking property of the rod 31 can ensure the reliability of the height adjustment of the support platform 2. A groove is provided on the top of the support platform 2, and a mounting groove is provided on the bottom of the inner wall of the groove. A first motor 22 is fixedly arranged in the mounting groove, and a first square rod 23 is fixedly arranged on the top of the output end of the first motor 22. A square hole is provided on the top of the first square rod 23, and a second square rod 24 is slidably arranged in the square hole. A turntable 21 is fixedly arranged on the top of the second square rod 24, and a limit groove is provided on the left and right sides of the inner wall of the square hole. A group of limit blocks are fixedly arranged on the left and right sides of the second square rod 24, and the limit blocks are slidably arranged in the limit groove. The bottom of the inner wall of the groove is annular The array is evenly and fixedly provided with dampers 25, the outer ring of the damper 25 is fixedly provided with a spring 26, the top of the spring 26 is fixedly connected to the telescopic end of the damper 25, the top of the telescopic end of the damper 25 is rollingly inlaid with a ball 27, the top of the ball 27 is in contact with the bottom of the turntable 21, the first square rod 23 is driven to rotate by the first motor 22, the first square rod 23 drives the turntable 21 to rotate through the second square rod 24, the ball 27 can assist the turntable 21 to rotate stably, when the turntable 21 vibrates due to rotation, the shock absorber composed of the damper 25 and the spring 26 can make the turntable 21 have good shock absorption.

[0023] Working principle: the worm 31 is driven to rotate by the second motor 3, and the worm 31 drives the screw 13 to rotate through the worm wheel 32. Through the cooperation of the hollow column 11 and the support column 12, when the screw 13 rotates, it will drive the internal threaded sleeve 14 to move upward, and then drive the support platform 2 on the top of the internal threaded sleeve 14 to move upward, so as to achieve the effect of changing the height of the support platform 2. The self-locking property of the worm wheel 32 and the worm 31 can ensure the reliability of the height adjustment of the support platform 2. The first square rod 23 is driven to rotate by the first motor 22, and the first square rod 23 drives the turntable 21 to rotate through the second square rod 24. The ball 27 can assist the turntable 21 to rotate stably. When the turntable 21 vibrates due to rotation, the shock absorber composed of the damper 25 and the spring 26 can make the turntable 21 have good shock absorption.

Claims

1. An ultra-high precision turntable with a shock-absorbing effect, characterized in that: include: A workbench (1), wherein a mounting hole is formed through the top of the workbench (1), a screw (13) is rotatably arranged in the mounting hole through a bearing, a worm wheel (32) is arranged on the outer ring of the screw (13), the worm wheel (32) is located at the bottom of the workbench (1), a second motor (3) is arranged at the bottom of the workbench (1), a worm (31) is arranged on the right side of the output end of the second motor (3), and the worm (31) is meshed with the worm wheel (32), wherein: The worm (31) is rotatably arranged at the bottom of the workbench (1) via a rotating shaft seat, and the worm (31) is located at the front side of the worm wheel (32).

2. The ultra-high precision turntable with shock absorption effect according to claim 1, characterized in that: An internal threaded sleeve (14) is threadedly connected to the outer wall of the screw rod (13); the internal threaded sleeve (14) is located above the workbench (1); and a support platform (2) is arranged on the top of the internal threaded sleeve (14).

3. The ultra-high precision turntable with shock absorption effect according to claim 2, characterized in that: The top of the workbench (1) is evenly provided with hollow columns (11), the interior of the hollow columns (11) is provided with support columns (12), and the support columns (12) are arranged at the bottom of the support platform (2).

4. The ultra-high precision turntable with shock absorption effect according to claim 3, characterized in that: The top of the support platform (2) is provided with a groove, the bottom of the inner side wall of the groove is provided with a mounting groove, a first motor (22) is arranged in the mounting groove, a first square rod (23) is arranged at the top of the output end of the first motor (22), a square hole is provided at the top of the first square rod (23), a second square rod (24) is arranged in the square hole, and a turntable (21) is arranged at the top of the second square rod (24).

5. The ultra-high precision turntable with shock absorption effect according to claim 4, characterized in that: The inner side walls of the square hole are provided with limit grooves on both sides, and the second square rod (24) is provided with a group of limit blocks on both sides, and the limit blocks are arranged in the limit grooves.

6. The ultra-high precision turntable with shock absorption effect according to claim 4, characterized in that: The bottom of the inner side wall of the groove is evenly provided with dampers (25) in an annular array, the outer ring of the damper (25) is provided with a spring (26), the top of the spring (26) is fixedly connected to the telescopic end of the damper (25), the top of the telescopic end of the damper (25) is rollingly inlaid with a ball (27), and the top of the ball (27) is in contact with the bottom of the turntable (21).

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