High-precision automatic rotating platform for large workpieces

Abstract

The utility model provides a high-precision automatic rotating platform for a large workpiece, which relates to the technical field of workpiece processing and comprises a bottom plate, a lifting mechanism is arranged at the top end of the bottom plate, a supporting plate is mounted at the top end of the lifting mechanism, a rotating mechanism is arranged in the supporting plate, a transmission rod is mounted at the top end of a threaded block, and the transmission rod is connected with the threaded block. The top end of the transmission rod extends out of the mounting cavity and is connected with the bottom end of the supporting plate. A lifting mechanism is arranged at the top end of a bottom plate, and the height of a supporting plate and the height of a bearing plate can be adjusted through mutual cooperation of a bottom cavity, a mounting cavity, a first servo motor, a driving gear, a driven gear ring, a threaded rotating sleeve, a threaded block, a transmission rod, a limiting block, a limiting groove, a positioning groove, a positioning block and a telescopic rod of the lifting mechanism; and when a workpiece is machined, the height of the workpiece can be conveniently adjusted, and therefore the practicability of the rotating platform in time is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece processing technical field especially relates to a high accuracy automatic rotating platform of large workpiece. BACKGROUND

[0002] With the development of economy, the continuous improvement of science and technology level, the manufacturing industry of our country develops very quickly, and the large workpiece needs to be placed on the automatic rotating platform during production and processing to improve the production efficiency of the workpiece.

[0003] For example, application No. CN209036044U discloses "a rotatable high-precision large platform type clamp" and specifically discloses that the plate surface of the mounting frame is fixedly connected with a platform plate, the plate surface of the platform plate is fixedly connected with a rotating column, the rotating column penetrates the plate surface of the mounting frame and is arranged, a limiting plate is fixedly connected to the rod body of the rotating column, a lifting slide plate is sleeved on the rod body of the rotating column, a tension spring is fixedly connected between the lifting slide plate and the inner top surface of the mounting frame, a positioning plug rod is fixedly connected to the plate surface of the lifting slide plate, the positioning plug rod is inserted into the positioning hole arranged in the plate surface of the limiting plate, a handle is fixedly connected to the rod body of the rotating column, a stop rod is inserted into the outer wall of the mounting frame, the end surface of the stop rod is fixedly connected to the plate surface of the connecting plate, an elastic member is fixedly connected between the connecting plate and the outer wall of the mounting frame, and the elastic member is sleeved on the outer side of the stop rod. However, in the above-mentioned technology, the height of the platform cannot be adjusted during use, which makes it inconvenient to adjust the height of the workpiece during production and processing, thereby reducing the practicability of the platform during use. Therefore, the utility model provides a high-precision automatic rotating platform for large workpieces to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a high-precision automatic rotating platform for large workpieces, which solves the problem that the height of the platform cannot be adjusted in the prior art, making it inconvenient to adjust the height of the workpiece during production and processing, thereby reducing the practicability of the platform during use.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a high-precision automatic rotating platform for large workpieces, comprising a bottom plate, a lifting mechanism is arranged at the top end of the bottom plate, a supporting plate is installed at the top end of the lifting mechanism, a rotating mechanism is arranged in the supporting plate, and a bearing plate is installed at the top end of the rotating mechanism.

[0006] The lifting mechanism comprises a bottom cavity, a mounting cavity, a first servo motor, a driving gear, a driven gear ring, a threaded sleeve, a threaded block, a transmission rod and a limiting structure, the bottom cavity is installed at the top end of the bottom plate, a mounting cavity is installed on one side of the top end of the bottom cavity, a threaded sleeve is installed inside the bottom cavity and the mounting cavity, a driven gear ring is installed below the outer wall of the threaded sleeve, a driving gear is engaged on one side of the driven gear ring, a first servo motor is installed on one side of the top end of the bottom cavity, the output end of the first servo motor is connected with one end of the driving gear, a threaded block is arranged inside the threaded sleeve, a transmission rod is installed at the top end of the threaded block, the top end of the transmission rod extends to the outside of the mounting cavity, and the top end of the transmission rod is connected with the bottom end of the supporting plate.

[0007] Further improvement lies in that the limiting structure comprises limiting blocks, limiting grooves, positioning grooves and positioning blocks, the limiting blocks are installed above both sides inside the mounting cavity, the limiting grooves are opened on both sides of the transmission rod, one end of the limiting block extends to the inside of the limiting groove, the positioning grooves are opened on the outer wall of the threaded sleeve, and the positioning blocks are installed on both sides of the inner wall of the mounting cavity, one end of the positioning block extends to the inside of the positioning groove.

[0008] Further improvement lies in that the cross section of the limiting block is smaller than that of the limiting groove, and a sliding structure is formed between the limiting block and the limiting groove.

[0009] Further improvement lies in that a plurality of telescopic rods are installed at the top end of the bottom plate, and the plurality of telescopic rods are symmetrically distributed about the central axis of the bottom plate.

[0010] Further improvement lies in that the rotating mechanism comprises a second servo motor, a first bevel gear, a second bevel gear, a worm, a worm wheel and a guide structure, the second servo motor is installed at the bottom end of the supporting plate, the first bevel gear is installed at the bottom end inside the supporting plate, the output end of the second servo motor is connected with the bottom end of the first bevel gear, the second bevel gear is engaged above the first bevel gear, the worm is installed on one side of the second bevel gear, the worm wheel is engaged at one end of the worm, and the top end of the worm wheel is connected with the bottom end of the bearing plate.

[0011] Further improvement lies in that the guide structure comprises guide grooves and guide blocks, two groups of guide grooves are opened inside the supporting plate, and a guide block is arranged inside each guide groove, and the top end of the guide block is connected with the bottom end of the bearing plate.

[0012] The utility model discloses a beneficial effect is: through setting up the lifting mechanism in the top of bottom plate, utilize the mutual cooperation between the bottom cavity, installation cavity, first servo motor, driving gear, driven gear ring, threaded sleeve, threaded block, transmission rod, limit block, limit slot, positioning groove, locating block and telescopic rod of lifting mechanism, can adjust the height of support plate and bearing plate and handle, make when the workpiece processing, can conveniently adjust the height of it and handle, thereby greatly improve the practicality of the rotating platform in time, through setting up the rotating mechanism in the inside of support plate, utilize the mutual cooperation between the second servo motor, first bevel gear, second bevel gear, worm, worm wheel, guide slot and guide block of rotating mechanism, can drive bearing plate and workpiece and rotate, the guide of multiple guide blocks and the self -lock between worm and worm wheel, make workpiece more stable when rotating, thus make workpiece higher precision when rotating, thereby greatly improve the accuracy of the rotating platform when using. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is whole structure schematic diagram of the utility model;

[0014] Figure 2 It is whole structure schematic diagram of the second servo motor of the utility model;

[0015] Figure 3 It is whole structure schematic diagram of the lifting mechanism of the utility model;

[0016] Figure 4 It is whole structure schematic diagram of the rotating mechanism of the utility model.

[0017] Among them: 1, bottom plate, 2, support plate, 3, bearing plate, 4, bottom cavity, 5, installation cavity, 6, first servo motor, 7, driving gear, 8, driven gear ring, 9, threaded sleeve, 10, threaded block, 11, transmission rod, 12, limit block, 13, limit slot, 14, positioning groove, 15, locating block, 16, second servo motor, 17, first bevel gear, 18, second bevel gear, 19, worm, 20, worm wheel, 21, guide slot, 22, guide block, 23, telescopic rod. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the utility model, the utility model will be further detailed below in conjunction with examples, and this embodiment is only used to explain the utility model, and does not constitute the limitation of the protection scope of the utility model.

[0019] According to Figure 1 , 2、3、4, the embodiment proposes a large workpiece high-precision automatic rotating platform, including the bottom plate 1, the top of the bottom plate 1 is provided with lifting mechanism, the top of the lifting mechanism is installed with support plate 2, the inside of the support plate 2 is provided with rotating mechanism, the top of the rotating mechanism is installed with bearing plate 3.

[0020] The lifting mechanism includes bottom cavity 4, installation cavity 5, first servo motor 6, driving gear 7, driven gear ring 8, threaded sleeve 9, threaded block 10, transmission rod 11 and limiting structure, the bottom cavity 4 is installed on the top of the bottom plate 1, one side of the top of the bottom cavity 4 is provided with installation cavity 5, the inside of the bottom cavity 4 and installation cavity 5 is provided with threaded sleeve 9, the lower outer wall of the threaded sleeve 9 is provided with driven gear ring 8, one side of the driven gear ring 8 is engaged with driving gear 7, one side of the top of the bottom cavity 4 is provided with first servo motor 6, the output end of the first servo motor 6 is connected with one end of the driving gear 7, the inside of the threaded sleeve 9 is provided with threaded block 10, the top of the threaded block 10 is installed with transmission rod 11, the top of the transmission rod 11 extends to the outside of the installation cavity 5, the top of the transmission rod 11 is connected with the bottom end of the support plate 2, when using, start the first servo motor 6 to drive the driving gear 7 to rotate, since the driving gear 7 and the driven gear ring 8 are engaged with each other, under the cooperation of the positioning groove 14 and the positioning block 15, the driven gear ring 8 drives the threaded sleeve 9 to rotate, so as to drive the threaded block 10 to move, and then under the limiting of the limiting block 12 and the limiting groove 13, the threaded block 10 drives the transmission rod 11 to move, and then under the guidance of the telescopic rod 23, the transmission rod 11 drives the support plate 2 and the bearing plate 3 to move, the workpiece is moved to the appropriate height, the height of the support plate 2 and the bearing plate 3 can be adjusted, so that the height of the workpiece can be conveniently adjusted during processing, thereby greatly improving the practicability of the rotating platform.

[0021] The limiting structure includes limiting block 12, limiting groove 13, positioning groove 14 and positioning block 15, the limiting block 12 is installed on the top of the inside of the installation cavity 5, the limiting groove 13 is opened on both sides of the transmission rod 11, one end of the limiting block 12 extends to the inside of the limiting groove 13, the positioning groove 14 is opened on the outer wall of the threaded sleeve 9, the positioning block 15 is installed on both sides of the inner wall of the installation cavity 5, one end of the positioning block 15 extends to the inside of the positioning groove 14, the cross section of the limiting block 12 is smaller than the cross section of the limiting groove 13, the limiting block 12 and the limiting groove 13 constitute a sliding structure, when using, the limiting block 12 and the limiting groove 13 can be limited during the movement of the transmission rod 11, so that the transmission rod 11 moves more stably, the positioning groove 14 and the positioning block 15 can be limited during the rotation of the threaded sleeve 9, so that the threaded sleeve 9 rotates more stably.

[0022] The top end of the bottom plate 1 is provided with a plurality of telescopic rods 23, which are symmetrically distributed about the central axis of the bottom plate 1. The telescopic rods 23 can guide the support plate 2 when moving, so that the support plate 2 is more stable when moving.

[0023] The rotating mechanism comprises a second servo motor 16, a first bevel gear 17, a second bevel gear 18, a worm 19, a worm wheel 20 and a guide structure. The second servo motor 16 is installed at the bottom end of the support plate 2. The first bevel gear 17 is installed at the bottom end inside the support plate 2. The output end of the second servo motor 16 is connected with the bottom end of the first bevel gear 17. The upper side of the first bevel gear 17 is engaged with the second bevel gear 18. The second bevel gear 18 is provided with the worm 19 on one side. One end of the worm 19 is engaged with the worm wheel 20. The top end of the worm wheel 20 is connected with the bottom end of the bearing plate 3. When in use, the second servo motor 16 drives the first bevel gear 17 to rotate. Since the first bevel gear 17 and the second bevel gear 18 are engaged with each other, the second bevel gear 18 drives the worm 19 to rotate. Since the worm 19 and the worm wheel 20 are engaged with each other, the worm 19 drives the worm wheel 20 to rotate. Then, under the guidance of the guide groove 21 and the guide block 22, the worm wheel 20 drives the support plate 2 to rotate, thereby driving the workpiece to rotate. The guidance of the plurality of guide blocks 22 and the self-locking between the worm 19 and the worm wheel 20 make the workpiece more stable when rotating, so that the workpiece has higher precision when rotating, thereby greatly improving the accuracy of the rotating platform when in use.

[0024] The guide structure comprises a guide groove 21 and a guide block 22. Two groups of the guide grooves 21 are formed in the inside of the support plate 2. The guide grooves 21 are provided with the guide blocks 22 inside. The top end of the guide block 22 is connected with the bottom end of the bearing plate 3. When in use, the guide groove 21 and the guide block 22 can guide the bearing plate 3 when rotating, so that the bearing plate 3 is more stable when rotating.

[0025] Working principle: the staff places workpiece above the bearing plate 3, then starts the first servo motor 6 and drives the driving gear 7 to rotate, since the driving gear 7 and the driven gear ring 8 are mutually engaged, under the cooperation of the positioning groove 14 and the positioning block 15, the driven gear ring 8 drives the threaded sleeve 9 to rotate, so as to drive the threaded block 10 to move, then under the limiting of the limiting block 12 and the limiting groove 13, the threaded block 10 drives the transmission rod 11 to move, then under the guidance of the telescopic rod 23, the transmission rod 11 drives the support plate 2 and the bearing plate 3 to move, moves the workpiece to the appropriate height, when it is needed to drive the workpiece to rotate, the second servo motor 16 drives the first bevel gear 17 to rotate, since the first bevel gear 17 and the second bevel gear 18 are mutually engaged, the second bevel gear 18 drives the worm 19 to rotate, since the worm 19 and the worm wheel 20 are mutually engaged, the worm 19 drives the worm wheel 20 to rotate, then under the guidance of the guide groove 21 and the guide block 22, the worm wheel 20 drives the support plate 2 to rotate, and then drives the workpiece to rotate.

[0026] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are just to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall into the scope of the utility model claimed for protection. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision automatic rotating platform for large workpieces, comprising a base plate (1), characterized in that: The top end of the bottom plate (1) is provided with a lifting mechanism, the top end of the lifting mechanism is installed with a supporting plate (2), the inside of the supporting plate (2) is provided with a rotating mechanism, the top end of the rotating mechanism is installed with a bearing plate (3); The lifting mechanism comprises a bottom cavity (4), a mounting cavity (5), a first servo motor (6), a driving gear (7), a driven gear ring (8), a threaded rotating sleeve (9), a threaded block (10), a transmission rod (11) and a limiting structure, the bottom cavity (4) is installed at the top end of the bottom plate (1), one side of the top end of the bottom cavity (4) is installed with the mounting cavity (5), the inside of the bottom cavity (4) and the mounting cavity (5) is installed with the threaded rotating sleeve (9), the lower part of the outer wall of the threaded rotating sleeve (9) is installed with the driven gear ring (8), one side of the driven gear ring (8) is engaged with the driving gear (7), one side of the top end of the bottom cavity (4) is installed with the first servo motor (6), the output end of the first servo motor (6) is connected with one end of the driving gear (7), the inside of the threaded rotating sleeve (9) is provided with the threaded block (10), the top end of the threaded block (10) is installed with the transmission rod (11), the top end of the transmission rod (11) extends to the outside of the mounting cavity (5), and the top end of the transmission rod (11) is connected with the bottom end of the supporting plate (2).

2. The high-precision automatic rotating platform for large workpieces according to claim 1, characterized in that: The limiting structure comprises a limiting block (12), a limiting groove (13), a positioning groove (14) and a positioning block (15), the limiting block (12) is installed above the two sides in the inside of the mounting cavity (5), the limiting grooves (13) are formed on the two sides of the transmission rod (11), one end of the limiting block (12) extends to the inside of the limiting groove (13), the positioning grooves (14) are formed on the outer wall of the threaded rotating sleeve (9), and the positioning blocks (15) are installed on the two sides of the inner wall of the mounting cavity (5). One end of the positioning block (15) extends to the inside of the positioning groove (14).

3. The high-precision automatic rotating platform for large workpieces according to claim 2, characterized in that: The cross section of the limiting block (12) is smaller than that of the limiting groove (13), and a sliding structure is formed between the limiting block (12) and the limiting groove (13).

4. The high-precision automatic rotating platform for large workpieces according to claim 3, characterized in that: A plurality of telescopic rods (23) are installed at the top end of the bottom plate (1), and the plurality of telescopic rods (23) are symmetrically distributed about the central axis of the bottom plate (1).

5. The high-precision automatic rotating platform for large workpieces according to claim 1, characterized in that: The rotating mechanism comprises a second servo motor (16), a first bevel gear (17), a second bevel gear (18), a worm (19), a worm wheel (20) and a guide structure, the second servo motor (16) is installed at the bottom end of the supporting plate (2), the first bevel gear (17) is installed at the bottom end in the inside of the supporting plate (2), the output end of the second servo motor (16) is connected with the bottom end of the first bevel gear (17), the upper part of the first bevel gear (17) is engaged with the second bevel gear (18), one side of the second bevel gear (18) is installed with the worm (19), one end of the worm (19) is engaged with the worm wheel (20), and the top end of the worm wheel (20) is connected with the bottom end of the bearing plate (3).

6. The high-precision automatic rotating platform for large workpieces according to claim 5, characterized in that: The guide structure comprises guide grooves (21) and guide blocks (22), two groups of the guide grooves (21) are arranged in the inside of the support plate (2), the inside of the guide groove (21) is provided with the guide block (22), and the top end of the guide block (22) is connected with the bottom end of the bearing plate (3).

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