A precision rotary body flexible support device

Abstract

The present invention discloses a flexible support device for a precision rotating body, which relates to the technical field of support devices. This flexible support device for a precision rotating body includes a support device. Through the support device, an elastic arc plate and a lower pressing plate are successively pressed into the rotating body, so that the elastic arc plate and the lower pressing plate are exactly distributed on both sides of the pre-drilled hole, achieving a good support effect; by adjusting the distance between the elastic arc plate and the lower pressing plate, the elastic arc plate and the lower pressing plate are exactly located on the upper and lower sides of the position where drilling is to be prepared. The elastic arc plate and the lower pressing plate play a supporting role for the rotating body. On the basis of not interfering with drilling, the short distance between the elastic arc plate and the lower pressing plate can play a good supporting role when drilling the rotating body, reducing the degree of depression during drilling. When the elastic arc plate and the lower pressing plate are taken out, they can flatten the unevenly sunken parts of the rotating body.

Description

Technical Field

[0001] The present invention relates to the technical field of support devices, and particularly to a precision rotary body flexible support device. Background Art

[0002] Suppose two points at both ends of an object, and connect the two points to form a line passing through the object. The object rotates around this line as the rotation center. When each part of the object rotates to a fixed position, it has the same shape. This is a standard rotary body.

[0003] Weak-rigidity cylindrical workpieces have thin walls and are prone to deformation, requiring high clamping force. Generally, the internal support method is adopted. Existing internal support parts are paired with workpieces one by one, with low versatility. Moreover, the distance between the internal support part and the port is relatively far. During the hole-opening process of the cylindrical workpiece, small deformations are likely to occur, which is not conducive to the removal of the support part. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a precision rotary body flexible support device, which can be applicable to rotary bodies with different inner diameters, has a good support effect, and prevents excessive deformation during the hole punching of the rotary body.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A precision rotary body flexible support device includes a rotary body, the rotary body is of a cylindrical structure, and a support device is arranged inside the rotary body;

[0006] The support device includes:

[0007] An upper support mechanism, which is of a cover-like structure, the support mechanism has a telescopic structure, and the support mechanism can move towards the axis direction of the rotary body under the action of pressure;

[0008] A vertical movement mechanism, which can move up and down along the vertical direction;

[0009] A lower support mechanism, which is of a ring structure, the lower support mechanism can be telescoped under the action of pressure, and the upper support mechanism and the lower support mechanism are distributed on both sides of the punching position and support the inner wall of the rotary body.

[0010] Preferably, a bottom plate is arranged directly below the rotary body, a tapered rod is fixedly connected to the top of the bottom plate, a rectangular hole is penetrated through the bottom plate, the lower support mechanism is located between the upper support mechanism and the vertical movement mechanism, the top of the vertical movement mechanism is fixedly connected to the bottom of the lower support mechanism, and a bottom hole is opened at the bottom of the tapered rod.

[0011] Preferably, the upper support mechanism includes a lower pressing plate, the top of the lower pressing plate is fixedly connected with an upper pressing plate, the inner wall of the lower pressing plate is fixedly connected with a connecting plate, one side of the connecting plate close to the axis of the rotating body is fixedly connected with a moving rod, one side of the moving rod close to the axis of the rotating body is fixedly connected with a sliding block, the sliding block is slidably connected with a limiting cylinder, a first spring is arranged on the outer side of the limiting cylinder, and one side of the first spring far from the axis of the rotating body is fixedly connected with one side of the connecting plate close to the axis of the rotating body.

[0012] Preferably, the vertical moving mechanism includes a motor, the output end of the motor is fixedly connected with a lead screw, the lead screw is in threaded connection with a nut, the outer side of the nut is fixedly connected with a threaded cylinder, the side of the threaded cylinder is fixedly connected with a cross plate, the top of the cross plate is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected with a moving ring, the moving ring is slidably connected with a limiting box, the top of the moving ring is fixedly connected with a top rod, a first round hole is formed through the top of the limiting box, a second round hole is formed through the bottom of the limiting box, the vertical rod passes through the second round hole, and the top of the top rod is fixedly connected with a lower support mechanism.

[0013] Preferably, the lower support mechanism includes an elastic arc plate, a second spring is fixedly connected to the inner wall of the elastic arc plate, one end of the second spring close to the axis of the rotating body is fixedly connected with a connecting block, the bottom of the connecting block is fixedly connected with the top of the top rod, there are four connecting blocks in total, an arc plate is arranged between two connecting blocks, and both ends of the arc plate are fixedly connected with one side of the two connecting blocks close to each other.

[0014] Preferably, there are four lower pressing plates and four upper pressing plates respectively. One lower pressing plate and one upper pressing plate form a set of telescopic parts, which are in the shape of petals, and the four sets of telescopic parts are evenly distributed in the circumferential direction of the rotating body.

[0015] Preferably, the radius of the top of the upper pressing plate is smaller than that of the bottom, the radius of the top of the upper pressing plate is smaller than the inner diameter of the rotating body, and the radius of the bottom of the upper pressing plate is larger than the inner diameter of the rotating body.

[0016] Preferably, the upper pressing plate, the lower pressing plate and the moving rod are limited by the limiting cylinder, and the upper pressing plate and the lower pressing plate can only move horizontally along the axis direction of the limiting cylinder.

[0017] The present invention provides a precision rotating body flexible support device, which has the following beneficial effects:

[0018] (1) For this precision rotating body flexible support device, through the support device, the elastic arc plate and the lower pressing plate are successively pressed into the rotating body, so that the elastic arc plate and the lower pressing plate are exactly distributed on both sides of the pre-drilled hole, achieving a good support effect. The rotating body has a thin wall, which can prevent large deformation of the rotating body during drilling.

[0019] (2) The precision rotary body flexible support device, through the upper support mechanism, the radius of the top of the upper pressure plate is smaller than the inner diameter of the rotary body, and the radius of the bottom of the upper pressure plate is larger than the inner diameter of the rotary body. The upper pressure plate and the lower pressure plate can only move horizontally along the axis direction of the limiting cylinder. The arc surface of the upper pressure plate squeezes against the inner wall of the rotary body, and the upper pressure plate continuously moves to adapt to the rotary body. The upper support mechanism has an elastic telescopic structure, and the upper pressure plate and the lower pressure plate can adapt to rotary bodies with different inner diameters, with high versatility.

[0020] (3) The precision rotary body flexible support device, through the lower support mechanism, the elastic arc plate is inserted into the rotary body. The deformation of the second spring is much smaller than that of the first spring, and the extrusion force of the elastic arc plate on the inner wall of the rotary body is slightly smaller, facilitating the movement of the elastic arc plate along the inner wall of the rotary body. The four arc plates and the four connecting blocks are connected in pairs to form a circular ring mechanism, improving the compressive resistance of the connecting blocks. The four elastic arc plates move towards the axis direction of the rotary body, and the elastic arc plates penetrate into the rotary body.

[0021] (4) The precision rotary body flexible support device, through the upper support mechanism and the lower support mechanism, adjusts the distance between the elastic arc plate and the lower pressure plate, so that the elastic arc plate and the lower pressure plate are exactly located on the upper and lower sides of the position where drilling is to be prepared. The elastic arc plate and the lower pressure plate play a supporting role for the rotary body. Without interfering with drilling, the distance between the elastic arc plate and the lower pressure plate is short, which can play a good supporting role during the drilling of the rotary body, reducing the degree of depression during drilling. When the elastic arc plate and the lower pressure plate are taken out, they can flatten the concave and uneven parts of the rotary body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a separated view of the support device of the present invention and the rotary body;

[0024] Figure 3 is a schematic structural diagram of the support device of the present invention;

[0025] Figure 4 is a separated view of the support device of the present invention and the bottom plate;

[0026] Figure 5 is an exploded view of the support device of the present invention;

[0027] Figure 6 is a schematic structural diagram of the upper support mechanism of the present invention;

[0028] Figure 7 is an exploded view of the upper support mechanism of the present invention;

[0029] Figure 8 is an exploded view of the part where the lower pressure plate, the moving rod and the limiting cylinder are located in the present invention;

[0030] Figure 9 This is a schematic structural diagram of the lower support mechanism of the present invention;

[0031] Figure 10 This is a schematic structural diagram of the vertical moving mechanism of the present invention;

[0032] Figure 11 This is an exploded view of the vertical moving mechanism of the present invention.

[0033] In the figure: 1. Rotating body, 2. Support device, 21. Bottom plate, 22. Tapered rod, 23. Rectangular hole, 24. Upper support mechanism, 241. Lower pressing plate, 242. Upper pressing plate, 243. Shifting rod, 244. Slide block, 245. Limiting cylinder, 246. First spring, 247. Connecting plate, 248. Rod, 25. Vertical moving mechanism, 251. Motor, 252. Lead screw, 253. Nut, 254. Threaded cylinder, 255. Shifting ring, 256. Jacking rod, 257. Limiting box, 258. First round hole, 259. Second round hole, 26. Lower support mechanism, 261. Elastic arc plate, 262. Second spring, 263. Connecting block, 264. Arc plate, 3. Horizontal plate, 4. Vertical rod, 5. Bottom hole. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0036] Please refer to Figures 1-8 , the present invention provides a technical solution: a precision rotating body flexible support device, including a rotating body 1, the rotating body 1 is a cylindrical structure, and a support device 2 is arranged inside the rotating body 1;

[0037] The support device 2 includes:

[0038] The upper support mechanism 24 is a lid-like structure. The upper support mechanism 24 has a telescopic structure and can move in the axial direction of the rotary body 1 under the action of pressure. A bottom plate 21 is arranged directly below the rotary body 1. A tapered rod 22 is fixedly connected to the top of the bottom plate 21. A rectangular hole 23 is formed through the bottom plate 21. The lower support mechanism 26 is located between the upper support mechanism 24 and the vertical movement mechanism 25. The top of the vertical movement mechanism 25 is fixedly connected to the bottom of the lower support mechanism 26. A bottom hole 5 is formed at the bottom of the tapered rod 22. The upper support mechanism 24 includes a lower pressing plate 241. An upper pressing plate 242 is fixedly connected to the top of the lower pressing plate 241. A connecting plate 247 is fixedly connected to the inner wall of the lower pressing plate 241. A moving rod 243 is fixedly connected to one side of the connecting plate 247 close to the axis of the rotary body 1. A slider 244 is fixedly connected to one side of the moving rod 243 close to the axis of the rotary body 1. The slider 244 is slidably connected to a limiting cylinder 245. A first spring 246 is arranged outside the limiting cylinder 245. One side of the first spring 246 away from the axis of the rotary body 1 is fixedly connected to one side of the connecting plate 247 close to the axis of the rotary body 1. There are four lower pressing plates 241 and four upper pressing plates 242 respectively. One lower pressing plate 241 and one upper pressing plate 242 form a set of telescopic components, which are petal-shaped. The four sets of telescopic components are evenly distributed in the circumferential direction of the rotary body 1. The radius of the top of the upper pressing plate 242 is smaller than the radius of its bottom. The radius of the top of the upper pressing plate 242 is smaller than the inner diameter of the rotary body 1. The radius of the bottom of the upper pressing plate 242 is larger than the inner diameter of the rotary body 1. The upper pressing plate 242, the lower pressing plate 241 and the moving rod 243 are limited by the limiting cylinder 245. The upper pressing plate 242 and the lower pressing plate 241 can only move horizontally along the axis direction of the limiting cylinder 245.

[0039] During use, the upper pressing plate 242 is pressed into the rotary body 1. The four upper pressing plates 242 can form a bowl-shaped structure. The arc surface of the upper pressing plate 242 is in contact with the inner wall of the rotary body 1, and the first spring 246 is compressed. The four upper pressing plates 242 and the four lower pressing plates 241 move simultaneously in the axial direction of the rod 248. The upper pressing plate 242 continuously moves to adapt to the rotary body 1. Finally, the upper pressing plate 242 and the lower pressing plate 241 completely enter the rotary body 1. The upper pressing plate 242 and the lower pressing plate 241 clamp the rotary body 1, but do not affect the movement of the upper pressing plate 242 and the lower pressing plate 241 in the rotary body 1. The upper support mechanism 24 has an elastic telescopic structure. The upper pressing plate 242 and the lower pressing plate 241 can adapt to rotary bodies 1 with different inner diameters, and have high versatility.

[0040] Please refer to Figure 9, the present invention provides a technical solution: a precision rotary body flexible support device, including a lower support mechanism 26, which is a circular ring structure. The lower support mechanism 26 can expand and contract under the action of pressure. The upper support mechanism 24 and the lower support mechanism 26 are distributed on both sides of the punching position and support the inner wall of the rotary body 1. The lower support mechanism 26 includes an elastic arc plate 261. A second spring 262 is fixedly connected to the inner wall of the elastic arc plate 261. One end of the second spring 262 close to the axis of the rotary body 1 is fixedly connected to a connecting block 263. The bottom of the connecting block 263 is fixedly connected to the top of a push rod 256. There are four connecting blocks 263 in total. An arc plate 264 is arranged between two connecting blocks 263. The two ends of the arc plate 264 are respectively fixedly connected to the closer sides of the two connecting blocks 263.

[0041] During use, the elastic arc plate 261 is inserted into the rotary body 1, the elastic arc plate 261 squeezes the inner wall of the rotary body 1, the second spring 262 is compressed, the second spring 262 squeezes the connecting block 263. The distance between the connecting block 263 and the inner wall of the elastic arc plate 261 is half of the distance between the connecting block 263 and the center of the arc plate 264. The deformation amount of the second spring 262 is much smaller than that of the first spring 246. The extrusion force of the elastic arc plate 261 on the inner wall of the rotary body 1 is slightly smaller, which is convenient for the elastic arc plate 261 to move along the inner wall of the rotary body 1. The four arc plates 264 and the four connecting blocks 263 are connected in pairs to form a circular ring mechanism, improving the compressive capacity of the connecting block 263. The four elastic arc plates 261 move towards the axis direction of the rotary body 1, and the elastic arc plates 261 penetrate into the rotary body 1.

[0042] Please refer to Figures 10-11 , the present invention provides a technical solution: a precision rotary body flexible support device, including a vertical moving mechanism 25, which can move up and down along the vertical direction. The vertical moving mechanism 25 includes a motor 251. The output end of the motor 251 is fixedly connected to a lead screw 252. The lead screw 252 is threadedly connected to a nut 253. The outside of the nut 253 is fixedly connected to a threaded cylinder 254. The side of the threaded cylinder 254 is fixedly connected to a cross plate 3. The top of the cross plate 3 is fixedly connected to a vertical rod 4. The top of the vertical rod 4 is fixedly connected to a moving ring 255. The moving ring 255 is slidably connected to a limit box 257. The top of the moving ring 255 is fixedly connected to a push rod 256. A first round hole 258 is opened through the top of the limit box 257, and a second round hole 259 is opened through the bottom of the limit box 257. The vertical rod 4 passes through the second round hole 259. The top of the push rod 256 is fixedly connected to a lower support mechanism 26.

[0043] During use, start the motor 251. The output end of the motor 251 drives the lead screw 252 to rotate in sequence. The nut 253 drives the threaded cylinder 254, the cross plate 3, the vertical rod 4, the moving ring 255, the ejector rod 256, the connecting block 263, and the elastic arc plate 261 to move vertically along the axis of the lead screw 252, thereby adjusting the distance between the elastic arc plate 261 and the lower pressing plate 241, so that the elastic arc plate 261 and the lower pressing plate 241 are exactly located on the upper and lower sides of the position where drilling is to be prepared. The elastic arc plate 261 and the lower pressing plate 241 play a supporting role for the rotating body 1. On the basis of not interfering with drilling, at this time, the distance between the elastic arc plate 261 and the lower pressing plate 241 is the shortest, and the supporting ability is also the strongest, which can play a good supporting role when drilling the rotating body 1, reduce the depression degree during drilling, and when removing the elastic arc plate 261 and the lower pressing plate 241, it can also squeeze the uneven concave parts of the rotating body 1 to make it return to its original state as much as possible.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A precision rotary body flexible support device, comprising a rotary body (1), wherein the rotary body (1) is a cylindrical structure, and is characterized in that: A support device (2) is arranged inside the rotary body (1); The support device (2) includes: An upper support mechanism (24), which is in the shape of a cover. The upper support mechanism (24) has a telescopic structure and can move towards the axis direction of the rotary body (1) under the action of pressure; A vertical movement mechanism (25), which can move up and down along the vertical direction; A lower support mechanism (26), which is in the shape of a circular ring. The lower support mechanism (26) can be telescopic under the action of pressure. The upper support mechanism (24) and the lower support mechanism (26) support the inner wall of the rotary body (1); The upper support mechanism (24) includes a lower pressure plate (241). An upper pressure plate (242) is fixedly connected to the top of the lower pressure plate (241). A connecting plate (247) is fixedly connected to the inner wall of the lower pressure plate (241). A moving rod (243) is fixedly connected to one side of the connecting plate (247) close to the axis of the rotary body (1). A slider (244) is fixedly connected to one side of the moving rod (243) close to the axis of the rotary body (1). The slider (244) is slidably connected to a limiting cylinder (245). A first spring (246) is arranged on the outside of the limiting cylinder (245). One side of the first spring (246) far from the axis of the rotary body (1) is fixedly connected to one side of the connecting plate (247) close to the axis of the rotary body (1); The vertical movement mechanism (25) includes a motor (251). A lead screw (252) is fixedly connected to the output end of the motor (251). A nut (253) is threadedly connected to the lead screw (252). A threaded cylinder (254) is fixedly connected to the outside of the nut (253). A cross plate (3) is fixedly connected to the side of the threaded cylinder (254). A vertical rod (4) is fixedly connected to the top of the cross plate (3). A moving ring (255) is fixedly connected to the top of the vertical rod (4). The moving ring (255) is slidably connected to a limiting box (257). A top rod (256) is fixedly connected to the top of the moving ring (255); The lower support mechanism (26) includes an elastic arc plate (261). A second spring (262) is fixedly connected to the inner wall of the elastic arc plate (261). One end of the second spring (262) close to the axis of the rotary body (1) is fixedly connected to a connecting block (263). The bottom of the connecting block (263) is fixedly connected to the top of the top rod (256). There are four connecting blocks (263) in total. An arc plate (264) is arranged between two of the connecting blocks (263). The two ends of the arc plate (264) are respectively fixedly connected to the sides of the two connecting blocks (263) close to each other; A base plate (21) is arranged directly below the rotating body (1). A conical rod (22) is fixedly connected to the top of the base plate (21). A rectangular hole (23) is formed through the base plate (21). The lower support mechanism (26) is located between the upper support mechanism (24) and the vertical movement mechanism (25). The top of the vertical movement mechanism (25) is fixedly connected to the bottom of the lower support mechanism (26). A bottom hole (5) is formed at the bottom of the conical rod (22). The conical rod (22) is connected to the upper support mechanism (24).

2. The precision rotary body flexible support device according to claim 1, wherein: A first round hole (258) is formed through the top of the limit box (257). A second round hole (259) is formed through the bottom of the limit box (257). The vertical rod (4) passes through the second round hole (259). The top of the ejector rod (256) is fixedly connected to the lower support mechanism (26).

3. A precision rotary body flexible support device according to claim 1, characterized in that: There are four lower pressing plates (241) and four upper pressing plates (242). One lower pressing plate (241) and one upper pressing plate (242) form a set of telescopic parts, which are petal-shaped. The four sets of telescopic parts are equidistantly distributed in the circumferential direction of the rotating body (1).

4. A precision rotary body flexible support device according to claim 1, characterized in that: The radius of the top of the upper pressing plate (242) is smaller than the radius of its bottom. The radius of the top of the upper pressing plate (242) is smaller than the inner diameter of the rotating body (1). The radius of the bottom of the upper pressing plate (242) is larger than the inner diameter of the rotating body (1).

5. The flexible support device for a precision rotating body according to claim 1, characterized in that: The upper pressing plate (242), the lower pressing plate (241), and the moving rod (243) are limited by the limit cylinder (245). The upper pressing plate (242) and the lower pressing plate (241) can only move horizontally along the axis direction of the limit cylinder (245).

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