Cylinder drilling equipment

Abstract

Cylinder drilling equipment relates to the field of machining and comprises a V-shaped base, a plurality of conveying wheels are arranged on the two sides of the base in the length direction of the base and used for conveying a cylinder, the axis of the cylinder is parallel to the length direction of the base, and supporting plates are arranged on the two sides of the base; the clamping mechanism comprises two supporting rings arranged at the two ends of the base respectively and four supporting frames located on the circumferential side of the base and located on the inner sides of the supporting rings, the supporting frames are arranged in the circumferential direction of the supporting rings at equal intervals and move in the radial direction of the supporting rings, and a plurality of clamping blocks with adjustable intervals are arranged on the supporting frames in the length direction of the supporting frames and used for clamping the barrel; the drilling mechanism comprises four moving frames which are arranged on the peripheral side of the base and arranged at equal intervals in the circumferential direction, the moving frames move in the radial direction of the supporting ring, a plurality of rotating shafts which are adjustable in interval and rotate around the axes of the rotating shafts are arranged in the length direction of the moving frames, and drill bits are arranged at the ends of the rotating shafts so as to drill holes in the barrel. According to the device, coaxial clamping of the barrel can be guaranteed while synchronous drilling is conducted on the peripheral side of the barrel, the efficiency is improved, and the precision is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and in particular relates to a cylinder drilling device. Background Art

[0002] Due to its geometric symmetry, a cylindrical cylinder can bear a large load, and the force is evenly distributed when stressed, with good stability, and is widely used in various mechanical structures. In order to further meet different requirements, further processing is usually carried out on the cylinder, such as grooving on the surface or inner wall of the cylinder, opening holes on the side wall or end of the cylinder, etc. Especially when drilling holes on the side wall of the cylinder, it is mostly necessary to ensure that the holes are arranged at equal intervals along the circumferential direction of the cylinder, and there is a coincidence point between the axis of the hole and the axis of the cylinder. In the prior art, the cylinder is usually directly placed on the base. After drilling a row of holes on the cylinder, the cylinder is rotated by a certain angle, and then the subsequent drilling operation is carried out. However, due to the structural characteristics of the cylinder, when it is rotated, the phenomenon of excessive or insufficient rotation angle is likely to occur. Once the rotation angle deviates, it is easy to cause the distance between adjacent rows of holes not to be equal, thereby reducing the installation accuracy and use accuracy of the equipment, and affecting the normal operation of the equipment; and if the drilling is carried out by rotating the drill bit along the circumferential direction of the cylinder, since the cylinder is usually directly placed on the base, when drilling cylinders of different sizes, it is necessary to move the drill bit in the vertical direction, which requires high precision and it is difficult to ensure that the axis of the drill bit during circular motion is coaxial with the cylinder; and according to different usage requirements, the diameters of adjacent rows of holes are not the same. When using the above two methods for drilling, it is necessary to replace the drill bit in time, or divide the drilling operation into multiple processes, which is not conducive to improving production efficiency. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned related prior art, the present application provides a cylinder drilling device, which can ensure coaxial clamping of the cylinder while synchronously drilling on the circumferential side of the cylinder, improve efficiency and ensure accuracy, and has strong practicability.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A cylinder drilling device, comprising: a base, a clamping mechanism, and a drilling mechanism.

[0005] The base is V-shaped, and a plurality of conveying wheels are provided on both sides along its length direction. The axes of the conveying wheels are parallel to the corresponding side surfaces of the base for conveying the cylinder body, and the axis of the cylinder body is parallel to the length direction of the base. Vertical support plates are provided on both sides of the base; the clamping mechanism includes two support rings respectively provided at both ends of the base and four support frames respectively provided on the periphery of the base and inside the support rings. The support frames are arranged at equal intervals along the circumferential direction of the support ring and are movably arranged along its radial direction. Two of the support frames are located on the upper and lower sides of the base, and the other two support frames are respectively located outside the support plates. A plurality of clamping blocks are arranged at intervals and with adjustable spacing along the length direction of the support frames for clamping the cylinder body; the drilling mechanism includes four moving frames respectively provided on the periphery of the base and arranged at equal intervals along the circumferential direction. The moving frames are movably arranged along the radial direction of the support ring, and a plurality of rotating shafts with adjustable spacing and rotating around their own axes are arranged along the length direction of the moving frames. Detachable drill bits are provided at the ends of the rotating shafts for drilling the cylinder body.

[0006] Further, the clamping block is V-shaped, and a T-shaped plate is provided on the outer side. The two ends of the T-shaped plate are respectively sleeved on the first screw rod and the sliding rod and locked with nuts. The first screw rod and the sliding rod are both installed on the support frame. The two ends of the support frame are respectively sleeved on the support rods. The support rod located above the base is installed on the support, and the support is installed on the support plate. The support rod located below the base is installed on the bottom plate, and the bottom plate is installed on the bottom of the base. The support rod located outside the support plate is installed on the outer wall of the support plate. A first spring is sleeved on the support rod. The two ends of the first spring at different positions respectively abut against the support frame and its corresponding support plate, or support, or bottom plate and are always in a compressed state. A first retaining ring is provided at the end of the support rod for abutting against the support frame.

[0007] Further, rotating rings are provided on both sides of the support ring. Two limit rods arranged in central symmetry are detachably connected to the inner side of the rotating ring. The limit rod includes a first arc section and a second arc section connected to each other. One end of the first arc section is tangent to the inner wall of the rotating ring, the second arc section is concentric with the rotating ring, and the distance between the second arc section and the center of the support ring is less than the distance between the first arc section and the center of the support ring; two push rods are arranged along the width direction of the support frame, and the axes of the push rods are parallel to the length direction of the support frame. During application, the limit rods on the same rotating ring are in contact with the push rods on two parallel support frames.

[0008] Further, straight line sections are provided at the ends of the first arc section and the second arc section. A clamping groove is provided on the side surface of the rotating ring, and the straight line sections are fitted in the clamping groove. The straight line section located at the end of the second arc section protrudes from the inner side of the second arc section. A clamping block is arranged on the side surface of the straight line section, a baffle is provided on the end surface of the clamping block, a push rod is provided on the surface of the baffle, and the push rod passes through the convex plate. The convex plate is installed on the rotating ring. A second spring is sleeved on the push rod, and the two ends of the second spring respectively abut against the convex plate and the baffle and are always in a compressed state.

[0009] Further, a gear ring is provided on the circumferential side of one of the rotating rings. The gear ring meshes with the driving gear. The driving gear is installed on the transmission shaft. The transmission shaft is installed on the chassis and is connected to the output end of the power device. The power device is installed on the chassis, and the chassis is connected to the support ring.

[0010] Further, two convex blocks arranged centrally symmetrically are provided on the side surface of the other rotating ring. The convex blocks are sleeved on the guide rods. The guide rods are arc-shaped, and one end is connected to the mounting block. The mounting block is installed on the support ring. A third spring is sleeved on the guide rods. The two ends of the third spring respectively abut against the mounting block and the convex block and are always in a compressed state. When the clamping block clamps the cylinder body, the elastic force direction of the third spring is opposite to the rotating direction of the rotating ring. A second retaining ring is provided at the other end of the guide rod for abutting against the convex block. A push block is provided on the side surface of one of the rotating rings. During application, the push block pushes the convex block.

[0011] Further, two blocks arranged centrally symmetrically are provided on the circumferential side of the support ring. A thrust block is provided on the side surface of the other rotating ring, and the thrust block and the convex block are respectively located on both sides of the push block. When the convex block abuts against the second retaining ring, the thrust block abuts against the block.

[0012] Further, a chute is provided on the surface of the moving frame along its length direction. A slider is slidably fitted in the chute. The rotating shaft is rotatably installed in the slider. The two ends of the slider are respectively sleeved on the second screw rod and the cross bar and are locked with nuts. The second screw rod and the cross bar are both installed on the moving frame. The two ends of the moving frame are respectively sleeved on the connecting rod and are connected to the moving end of the linear mechanism. The connecting rod and the linear mechanism are respectively installed under the base and on the support plate.

[0013] Further, two symmetrically arranged stop rods are further provided at one end of the base for abutting against the end of the cylinder body. One end of the stop rod is connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed under the base.

[0014] The beneficial effects of the present invention are as follows: The clamping mechanism can clamp cylinder bodies of different sizes and ensure that the cylinder body is always located on the axis of the support ring after being firmly clamped, so as to ensure the clamping accuracy of the cylinder body, and further ensure the position accuracy during drilling; and it can simultaneously perform synchronous drilling operations on the circumferential side of the cylinder body, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are only for illustrating the selected embodiments, not all possible implementation schemes, and are not intended to limit the scope of the present invention.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the embodiment of the present application.

[0017] Figure 2 It is a side view of the embodiment of the present application.

[0018] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism according to an embodiment of the present application.

[0019] Figure 4 This is an installation diagram of the support frame according to an embodiment of the present application.

[0020] Figure 5 This is a side view of the support frame according to an embodiment of the present application installed on the base.

[0021] Figure 6 This is a three-dimensional schematic diagram of the support frame according to an embodiment of the present application.

[0022] Figure 7 This is a schematic diagram of the rotating ring installed on the support ring according to an embodiment of the present application.

[0023] Figure 8 is Figure 7 an enlarged schematic diagram of part A of

[0024] Figure 9 This is a three-dimensional schematic diagram of one of the rotating rings according to an embodiment of the present application.

[0025] Figure 10 This is a three-dimensional schematic diagram of another rotating ring according to an embodiment of the present application.

[0026] Figure 11 This is a three-dimensional schematic diagram of the drilling mechanism according to an embodiment of the present application.

[0027] Explanation of reference numerals: 100 - base, 200 - clamping mechanism, 300 - drilling mechanism, 101 - conveying wheel, 102 - support plate, 103 - bracket, 104 - bottom plate, 105 - stop bar, 201 - support ring, 202 - support frame, 203 - clamping block, 204 - T-shaped plate, 205 - first screw, 206 - sliding rod, 207 - support rod, 208 - first spring, 209 - first retaining ring, 210 - rotating ring, 211 - limiting rod, 212 - push rod, 213 - gear ring, 214 - driving gear, 215 - transmission shaft, 216 - chassis, 217 - card slot, 218 - card block, 219 - baffle, 220 - ejector rod, 221 - convex plate, 222 - second spring, 223 - convex block, 224 - guide rod, 225 - mounting block, 226 - third spring, 227 - second retaining ring, 228 - push block, 229 - stop block, 230 - thrust block, 301 - moving frame, 302 - rotating shaft, 303 - chute, 304 - slider, 305 - second screw, 306 - cross bar, 307 - connecting rod. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following describes the implementation manners of the present invention in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0029] As Figures 1 to 11 shown, an embodiment of the present application provides a cylinder drilling device, including: a base 100, a clamping mechanism 200, a drilling mechanism 300, etc.

[0030] The base 100 is in a V shape, and a plurality of conveying wheels 101 are provided on both sides thereof along its length direction. The axes of the conveying wheels 101 are parallel to the corresponding side surfaces of the base 100 for conveying the cylinder, and the axis of the cylinder is parallel to the length direction of the base 100. Vertical support plates 102 are provided on both sides of the base 100; the clamping mechanism 200 includes two support rings 201 respectively provided at both ends of the base 100, and four support frames 202 respectively provided on the periphery of the base 100 and inside the support rings 201. The support frames 202 are arranged at equal intervals along the circumferential direction of the support rings 201 and are movably provided along their radial directions. Two of the support frames 202 are located on the upper and lower sides of the base 100, and the other two support frames 202 are respectively located outside the support plates 102. A plurality of clamping blocks 203 are arranged at intervals along the length direction of the support frames 202, and the spacing is adjustable, for clamping the cylinder. When clamping the cylinder, the support frames 202 on the upper and lower sides of the base 100 first move towards each other. After the clamping blocks 203 on the upper and lower sides of the base 100 clamp the cylinder, the support frames 202 outside the support plates 102 then move towards each other to further clamp the cylinder, making the cylinder more stable; the drilling mechanism 300 includes four moving frames 301 respectively provided on the periphery of the base 100 and arranged at equal intervals along the circumferential direction. The moving frames 301 are movably provided along the radial direction of the support rings 201, and a plurality of rotating shafts 302 with adjustable spacing and rotating around their own axes are provided along their length directions. Removably connected drill bits are provided at the ends of the rotating shafts 302 for drilling the cylinder. When different sizes of holes need to be drilled, only the drill bit needs to be replaced.

[0031] Specifically, as Figures 1 - 5As shown, the clamping block 203 is V-shaped to increase the contact points between the clamping block 203 and the cylinder body, making the clamping more stable. And a T-shaped plate 204 is provided on the outer side of the clamping block 203. The two ends of the T-shaped plate 204 are respectively sleeved on the first screw rod 205 and the slide rod 206 and locked with nuts. When clamping cylinder bodies of different lengths, only need to loosen the nuts, move the clamping block 203 along the slide rod 206, and then lock it with nuts again. The first screw rod 205 and the slide rod 206 are both installed on the support frame 202. Both ends of the support frame 202 are sleeved on the support rods 207. The support rod 207 located above the base 100 is installed on the support 103, and the support 103 is installed on the support plate 102. The support rod 207 located below the base 100 is installed on the bottom plate 104, and the bottom plate 104 is installed on the bottom of the base 100. The support rod 207 located outside the support plate 102 is installed on the outer wall of the support plate 102. A first spring 208 is sleeved on the support rod 207. The two ends of the first spring 208 respectively abut against the support frame 202 and the support plate 102, the support 103, and the bottom plate 104, and is always in a compressed state. A first retaining ring 209 is provided at the end of the support rod 207 for abutting against the support frame 202. Under the action of the first spring 208, the support frame 202 always has a tendency to move away from the base 100. When clamping the cylinder body, only need to apply a force on the support frame 202 towards the axis of the support ring 201. And after the drilling of the cylinder body is completed, release the force applied to the support frame 202.

[0032] Specifically, as Figures 3 - 6As shown in the figure, in order to facilitate the automatic clamping of the cylinder body, rotating rings 210 are provided on both sides of the support ring 201. Two limit rods 211 that are symmetrically arranged about the center and are detachably connected are provided on the inner side of the rotating ring 210. The limit rod 211 includes a first arc segment and a second arc segment that are connected to each other. One end of the first arc segment is tangent to the inner wall of the rotating ring 210, the second arc segment is concentric with the rotating ring 210, and the distance between the second arc segment and the center of the support ring 201 is less than the distance between the first arc segment and the center of the support ring 201; two push rods 212 are provided on the support frame 202 along its width direction, and the axis of the push rod 212 is parallel to the length direction of the support frame 202. When it is necessary to clamp the cylinder body, if one of the rotating rings 210 is driven to rotate, the limit rod 211 will gradually come into contact with the push rods 212 on the two support frames 202 located on the upper and lower sides of the base 100 respectively. As the rotating ring 210 continues to rotate, the support frame 202 will be forced to move radially along the support ring 201, so as to realize the clamping of the cylinder body and make the axis of the cylinder body coaxial with the axis of the support ring 201. During this process, the push rod 212 will first come into contact with the first arc segment of the limit rod 211, and under the action of the first arc segment, the push rod 212 will be forced to move. After the push rod 212 comes into contact with the second arc segment, even if the rotating ring 210 continues to rotate, it will not drive the push rod 212 to continue to move. Then, the other rotating ring 210 is driven to rotate again, so that the limit rod 211 on this rotating ring 210 comes into contact with the push rod 212 located outside the support plate 102, forcing the support frame 202 outside the support plate 102 to move towards the support plate 102, thereby further realizing the clamping of the cylinder body and ensuring the stability of the cylinder body.

[0033] Specifically, as Figure 3 shown, a gear ring 213 is provided on the circumferential side of one of the rotating rings 210. The gear ring 213 meshes with the driving gear 214. The driving gear 214 is installed on the transmission shaft 215. The transmission shaft 215 is installed on the chassis 216 and is connected to the output end of the power device, such as a motor, etc. The power device is installed on the chassis 216, and the chassis 216 is connected to the support ring 201. When it is necessary to drive the rotating ring 210 to rotate, only need to drive the transmission shaft 215 to rotate through the power device. Under the meshing transmission of the driving gear 214 and the gear ring 213, the rotating ring 210 will be driven to rotate.

[0034] Specifically, as Figures 3 - 10As shown in the figure, two bumps 223 arranged centrally symmetrically are provided on the side surface of another rotating ring 210. The bumps 223 are sleeved on a guide rod 224. The guide rod 224 is arc-shaped and one end thereof is connected to a mounting block 225. The mounting block 225 is mounted on a support ring 201. A third spring 226 is sleeved on the guide rod 224. Two ends of the third spring 226 respectively abut against the mounting block 225 and the bump 223 and are always in a compressed state. When the clamping block 203 clamps the cylinder body, the elastic force direction of the third spring 226 is opposite to the rotation direction of the rotating ring 210. A second retaining ring 227 is provided at the other end of the guide rod 224 for abutting against the bump 223. A push block 228 is provided on the side surface of one of the rotating rings 210. When one of the rotating rings 210 rotates, as described above, the support frames 202 located on the upper and lower sides of the base 100 will move towards each other. After one of the rotating rings 210 rotates a predetermined angle, the push block 228 will abut against the bump 223. At this time, the push rods 212 on the support frames 202 located on the upper and lower sides of the base 100 will contact the second arc section of the limiting rod 211. At this time, the rotation of the rotating ring 210 will not drive the support frames 202 on the upper and lower sides of the base 100 to continue moving. As one of the rotating rings 210 continues to rotate, the push block 228 will push the bump 223 to move synchronously and drive the other rotating ring 210 to start rotating. Then the support frames 202 located outside the support plate 102 will move towards each other. At this time, the third spring 226 is further compressed. After the clamping blocks 203 on both sides of the support plate 102 clamp the cylinder body, the rotation of the rotating ring 210 can be stopped. And after the cylinder body is stably clamped, under the blockage of the cylinder body itself, the further rotation of the rotating ring 210 will also be blocked. After the drilling of the cylinder body is completed, one of the rotating rings 210 is rotated in the reverse direction, and the other rotating ring 210 rotates synchronously in the reverse direction under the action of the third spring 226. At this time, the clamping blocks 203 located on the upper and lower sides of the base 100 will not loosen the cylinder body, while the clamping blocks 203 located on the side surface of the support plate 102 will loosen the cylinder body. After the clamping blocks 203 on the side surface of the support plate 102 are completely reset, one of the rotating rings 210 will continue to rotate, while the other rotating ring 210 stops rotating. At this time, the limiting rod 211 on one of the rotating rings 210 will gradually release the limit on the push rods 212 on the upper and lower sides of the base 100, so that the support frames 202 move away from each other, and the cylinder body returns to the base 100 again. Through the above structure, only one driving source is needed to realize the staged rotation of the two rotating rings 210, which is more convenient and fast. And the staged rotation of the two rotating rings 210 can also avoid the interference in the clamping process caused by the prior movement of the clamping blocks 203 on the side surface of the support plate 102. When clamping cylinder bodies with different diameters, only different specifications of limiting rods 211 need to be replaced.

[0035] Specifically, as Figures 7 - 8As shown, in order to facilitate the installation of the limit rod 211, straight sections are provided at the ends of both the first arc section and the second arc section. A clamping groove 217 is provided on the side surface of the rotating ring 210, and the straight sections are fitted into the clamping groove 217. And in order to prevent the push rod 212 from sliding out of the limit rod 211, the straight section at the end of the second arc section protrudes from the inner side of the second arc section, so as to be able to block the push rod 212. A clamping block 218 is inserted through the side surface of the straight section, a baffle 219 is provided on the end surface of the clamping block 218, a push rod 220 is provided on the surface of the baffle 219, the push rod 220 is inserted through the convex plate 221, the convex plate 221 is installed on the rotating ring 210, a second spring 222 is sleeved on the push rod 220, and both ends of the second spring 222 are respectively abutted against the convex plate 221 and the baffle 219 and are always in a compressed state. When installing the limit rod 211, an acting force opposite to the elastic force of the second spring 222 is applied to the push rod 220 to further compress the second spring 222. Then, the limit rod 211 is clamped into the clamping groove 217. Then, the acting force applied to the push rod 220 is released, and the clamping block 218 will penetrate into the straight section of the limit rod 211 under the action of the second spring 222, realizing the installation of the limit rod 211.

[0036] Specifically, as Figures 7 - 10 shown, two stoppers 229 arranged in central symmetry are provided on the peripheral side of the support ring 201. A thrust block 230 is provided on the side surface of the other rotating ring 210. And in order to avoid interference with the push block 228, the thrust block 230 and the convex block 223 are respectively located on both sides of the push block 228. When, when the other rotating ring 210 is reset, the convex block 223 abuts against the second retaining ring 227, and at this time, the thrust block 230 abuts against the stopper 229, reducing the collision force received by the second retaining ring 227 and reducing the possibility of its damage.

[0037] Specifically, as Figure 1 、 Figure 2 、 Figure 11As shown in the figure, a chute 303 is provided on the surface of the moving frame 301 along its length direction. A slider 304 is slidably fitted in the chute 303. The rotating shaft 302 is rotatably installed in the slider 304. Both ends of the slider 304 are sleeved on the second screw 305 and the cross bar 306 respectively and locked with nuts. When it is necessary to adjust the position of the drill bit according to the processing requirements, only the nuts need to be loosened. Then, the slider 304 is slid along the length direction of the cross bar 306 and the slider 304 is locked with nuts again. If it is necessary to drill different numbers of holes, only the number of the slider 304 and the rotating shaft 302 needs to be increased. The second screw 305 and the cross bar 306 are both installed on the moving frame 301. Both ends of the moving frame 301 are sleeved on the connecting rod 307. The connecting rod 307 guides the movement of the moving frame 301 and is connected to the moving end of the linear mechanism. The connecting rod 307 and the linear mechanism are respectively installed under the base 100 and on the support plate 102. During the drilling operation, the linear mechanism drives the four moving frames 301 to move towards the cylinder body and drives the rotating shaft 302 to rotate, then the drilling operation can be completed. For the drive of the rotating shaft 302, the rotating shaft 302 can be directly driven by a power device alone, or the structure of a belt and a pulley can be used to drive the rotating shaft 302. The adjacent two rotating shafts 302 can be driven by a belt. At this time, only one drive source needs to be set on the moving frame 301 to realize the rotation of all the rotating shafts 302 on the moving frame 301. If it is necessary to increase or move the rotating shaft 302, only the belt needs to be replaced.

[0038] Specifically, as Figure 5 shown, two symmetrically arranged stop bars 105 are further provided at one end of the base 100, which are used to abut against the end of the cylinder body. One end of the stop bar 105 is connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed under the base 100. When the cylinder body is conveyed onto the base 100, the cylinder body is blocked by the stop bar 105. After the drilling operation on the cylinder body is completed, the vertical lifting mechanism can be used to drive the stop bar 105 to move downward to release the blocking effect of the stop bar 105, so that the cylinder body is conveyed away by the conveying wheel 101.

[0039] More specifically, as Figure 4 shown, in order to facilitate the clamping of the cylinder body by the clamping block 203, long strip holes are arranged on both the base 100 and the support plate 102 along their length directions, which are used to pass through the clamping block 203, and the drill bit can also pass through the long strip holes to perform the drilling operation.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A cylindrical drilling device, characterized in that, Including: A base (100) in a V shape, on both sides of which along its length direction are provided with a plurality of conveying wheels (101). The axes of the conveying wheels (101) are parallel to the corresponding side surfaces of the base (100) and are used for conveying a cylinder body, and the axis of the cylinder body is parallel to the length direction of the base (100). On both sides of the base (100) are provided with vertically arranged support plates (102); A clamping mechanism (200), including two support rings (201) respectively arranged at both ends of the base (100) and four support frames (202) respectively arranged on the circumferential side of the base (100) and inside the support rings (201). The support frames (202) are arranged at equal intervals along the circumferential direction of the support rings (201) and are arranged to move radially. And two of the support frames (202) are located on the upper and lower sides of the base (100), and the other two support frames (202) are respectively located outside the support plates (102). Along the length direction of the support frames (202) are provided with a plurality of spaced-apart and adjustable-spacing clamping blocks (203) for clamping the cylinder body; A drilling mechanism (300), including four moving frames (301) respectively arranged on the circumferential side of the base (100) and arranged at equal intervals along the circumferential direction. The moving frames (301) are arranged to move radially along the support rings (201), and along the length direction are provided with a plurality of axles (302) with adjustable spacing and rotatable around their own axes. At the end of the axle (302) is provided with a detachably connected drill bit for drilling the cylinder body.

2. The cylinder drilling device according to claim 1, characterized in that, The clamping block (203) is in a V shape, and on the outside is provided with a T-shaped plate (204). The two ends of the T-shaped plate (204) are respectively sleeved on a first screw rod (205) and a slide rod (206) and are locked with nuts. The first screw rod (205) and the slide rod (206) are both installed on the support frame (202). Both ends of the support frame (202) are sleeved on a support rod (207). The support rod (207) located above the base (100) is installed on a bracket (103), and the bracket (103) is installed on the support plate (102). The support rod (207) located below the base (100) is installed on a bottom plate (104), and the bottom plate (104) is installed on the bottom of the base (100). The support rod (207) located outside the support plate (102) is installed on the outer wall of the support plate (102). A first spring (208) is sleeved on the support rod (207). The two ends of the first spring (208) in different positions respectively abut against the support frame (202) and the corresponding support plate (102), or the bracket (103), or the bottom plate (104) and are always in a compressed state. At the end of the support rod (207) is provided with a first retaining ring (209) for abutting against the support frame (202).

3. The cylindrical drilling device according to claim 1, characterized in that, On both sides of the support ring (201), there are rotation rings (210). Inside the rotation rings (210), two limit rods (211) arranged centrosymmetrically are detachably connected. The limit rods (211) include a first arc segment and a second arc segment connected to each other. One end inside of the first arc segment is tangent to the inner wall of the rotation ring (210). The second arc segment is concentric with the rotation ring (210), and the distance between the center of the second arc segment and the center of the support ring (201) is less than the distance between the center of the first arc segment and the center of the support ring (201). On the support frame (202), there are two push rods (212) along its width direction. The axis of the push rods (212) is parallel to the length direction of the support frame (202). During application, the limit rods (211) on the same rotation ring (210) are in contact with the push rods (212) on two parallel support frames (202).

4. The cylinder drilling device according to claim 3, characterized in that, Both ends of the first arc segment and the second arc segment are provided with straight line segments. There is a slot (217) on the side surface of the rotation ring (210). The straight line segments are fitted in the slot (217). The straight line segment at the end of the second arc segment protrudes from the inner side of the second arc segment. A clamping block (218) is penetrated through the side surface of the straight line segment. A baffle (219) is provided on the end surface of the clamping block (218). A push rod (220) is provided on the surface of the baffle (219). The push rod (220) is penetrated through a convex plate (221). The convex plate (221) is installed on the rotation ring (210). A second spring (222) is sleeved on the push rod (220). Both ends of the second spring (222) are respectively abutted against the convex plate (221) and the baffle (219), and are always in a compressed state.

5. The cylinder drilling device according to claim 3, characterized in that, A gear ring (213) is provided on the circumference of one of the rotation rings (210). The gear ring (213) meshes with a driving gear (214). The driving gear (214) is installed on a transmission shaft (215). The transmission shaft (215) is installed on a chassis (216) and is connected to the output end of a power device. The power device is installed on the chassis (216). The chassis (216) is connected to the support ring (201).

6. The cylindrical drilling device according to claim 3, characterized in that, On the side of another one of the rotating rings (210), there are two bumps (223) arranged in central symmetry. The bumps (223) are sleeved on a guide rod (224). The guide rod (224) is arc-shaped and has one end connected to a mounting block (225). The mounting block (225) is mounted on the support ring (201). A third spring (226) is sleeved on the guide rod (224). Two ends of the third spring (226) respectively abut against the mounting block (225) and the bump (223), and are always in a compressed state. When the clamping block (203) clamps the cylinder body, the elastic force direction of the third spring (226) is opposite to the rotation direction of the rotating ring (210). A second retaining ring (227) is provided at the other end of the guide rod (224) for abutting against the bump (223). On the side of one of the rotating rings (210), there is a push block (228). During application, the push block (228) pushes the bump (223).

7. The cylinder drilling equipment according to claim 6, characterized in that, On the circumferential side of the support ring (201), there are two blocks (229) arranged in central symmetry. On the side of another one of the rotating rings (210), there is a thrust block (230). The thrust block (230) and the bump (223) are respectively located on both sides of the push block (228). When the bump (223) abuts against the second retaining ring (227), the thrust block (230) abuts against the block (229).

8. The cylindrical drilling device according to claim 1, characterized in that, On the surface of the moving frame (301) along its length direction, there is a chute (303). A slider (304) is slidably fitted in the chute (303). The rotating shaft (302) is rotatably mounted in the slider (304). Two ends of the slider (304) are respectively sleeved on a second screw rod (305) and a cross bar (306) and are locked with nuts. The second screw rod (305) and the cross bar (306) are both mounted on the moving frame (301). Two ends of the moving frame (301) are respectively sleeved on a connecting rod (307) and are connected to the moving end of a linear mechanism. The connecting rod (307) and the linear mechanism are respectively mounted under the base (100) and on the support plate (102).

9. The cylindrical drilling device according to claim 1, characterized in that, At one end of the base (100), there are also two symmetrically arranged stop rods (105) for abutting against the end of the cylinder body. One end of the stop rod (105) is connected to the moving end of a vertical lifting mechanism. The vertical lifting mechanism is mounted under the base (100).

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