A barrel drilling equipment

Abstract

A cylindrical drilling device relates to the field of mechanical processing and includes: a V-shaped base with multiple conveying wheels provided on both sides along its length for conveying the cylindrical body, the cylindrical body axis being parallel to the length of the base, and support plates provided on both sides of the base; a clamping mechanism including two support rings provided at both ends of the base, four support frames located around the base and inside the support rings, the support frames being arranged at equal intervals along the circumference of the support rings and moving radially, the support frames being provided with multiple clamping blocks with adjustable spacing along their length for clamping the cylindrical body; a drilling mechanism including four movable frames provided around the base and arranged at equal intervals along the circumference, the movable frames moving radially along the support rings, and multiple rotating shafts with adjustable spacing along their length that rotate around their own axes, the ends of the rotating shafts being provided with drill bits for drilling holes in the cylindrical body. This device can simultaneously drill holes around the cylindrical body while ensuring coaxial clamping of the cylindrical body, thereby improving efficiency and ensuring accuracy.

Description

Technical Field

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

[0002] Due to their geometric symmetry, cylindrical barrels can carry large loads, distribute forces evenly, and offer excellent stability, making them widely used in various mechanical structures. To further adapt to different needs, the barrels are often further processed, such as grooving the surface or inner wall, or drilling holes in the sidewalls or ends. Especially when drilling holes in the sidewalls, it is often necessary to ensure that the holes are evenly spaced along the circumference of the barrel, and that the axis of the holes coincides with the axis of the barrel. In the prior art, the cylinder is usually placed directly on the base. After drilling a row of holes on the cylinder, the cylinder is rotated by a certain angle before the subsequent drilling operation is carried out. However, due to the structural characteristics of the cylinder, it is easy to rotate too much or too little when it is rotated. Once the rotation angle deviates, it is easy to cause the spacing between two adjacent rows of holes to be unequal, thereby reducing the installation accuracy and use accuracy of the equipment, affecting the normal operation of the equipment; and if the drill bit is rotated along the circumferential direction of the cylinder for drilling, since the cylinder is usually placed directly on the base, when it is necessary to drill cylinders of different sizes, the drill bit needs to be moved in the vertical direction, which requires high accuracy and is difficult to ensure that the axis of the drill bit is coaxial with the cylinder when it performs circular motion; and according to different usage requirements, the diameters of two adjacent rows of holes are not the same. When drilling with the above two methods, the drill bit needs to be replaced in time, or the drilling operation needs to be divided into multiple processes, which is not conducive to improving production efficiency. Summary of the Invention

[0003] In response to the deficiencies of the above-mentioned related existing technologies, the present application provides a cylinder drilling device that can simultaneously drill holes on the circumference of the cylinder while ensuring coaxial clamping of the cylinder, thereby improving efficiency and ensuring accuracy, and has strong practicality.

[0004] In order to achieve the above object, the present invention adopts the following technologies:

[0005] A cylindrical drilling device comprises a base, a clamping mechanism and a drilling mechanism.

[0006] The base is V-shaped, and multiple conveying wheels are provided on both sides along its length direction. The axes of the conveying wheels are parallel to the corresponding sides of the base for conveying the cylinder, and the axis of the cylinder is parallel to the length direction of the base. Vertically arranged support plates are provided on both sides of the base; the clamping mechanism includes two support rings respectively arranged at both ends of the base, four support frames respectively arranged on the circumferential side of the base and located on the inner sides of the support rings, the support frames are arranged at equal intervals along the circumferential direction of the support rings and are movable along their radial directions, and 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 on the outer sides of the support plates, and the support frames are provided with multiple spaced and adjustable spacing clamping blocks along their length direction for clamping the cylinder; the drilling mechanism includes four movable frames respectively arranged on the circumferential side of the base and arranged at equal intervals along the circumferential direction, the movable frame is movable along the radial direction of the support ring, and multiple rotating shafts with adjustable spacing and rotating around their own axes are provided along their length direction, and a detachable drill bit is provided at the end of the rotating shaft for drilling holes in the cylinder.

[0007] Furthermore, the clamping block is V-shaped and has a T-shaped plate on the outside. Both ends of the T-shaped plate are respectively sleeved on the first screw and the sliding rod and locked with nuts. The first screw and the sliding rod are both installed on the support frame. Both ends of the support frame are sleeved on the support rod. The support rod above the base is installed on the bracket, the bracket is installed on the support plate, the support rod below the base is installed on the bottom plate, the bottom plate is installed on the bottom of the base, and the support rod located on the outside of the support plate is installed on the outer wall of the support plate. A first spring is sleeved on the support rod, and the two ends of the first spring at different positions respectively abut against the support frame and its corresponding support plate, or the bracket, or the 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.

[0008] Furthermore, a rotating ring is provided on both sides of the support ring, and two limit rods arranged in a central symmetrical manner are detachably connected on the inner side of the rotating ring. The limit rod includes a first arc segment and a second arc segment connected to each other, the inner side of one end of the first arc segment is tangent to the inner wall of the rotating ring, the second arc segment is concentric with the rotating ring, and the distance between the second arc segment and the center of the support ring is smaller than the distance between the first arc segment and the center of the support ring; two push rods are provided on the support frame along its width direction, and the axis of the push rods is parallel to the length direction of the support frame. When in use, the limit rod on the same rotating ring contacts the push rods on the two parallel support frames.

[0009] Furthermore, the ends of the first arc segment and the second arc segment are both provided with a straight segment, and a groove is provided on the side of the rotating ring. The straight segment fits in the groove, and the straight segment located at the end of the second arc segment protrudes from the inner side of the second arc segment. A block is passed through the side of the straight segment, and a baffle is provided on the end face of the block. A push rod is provided on the surface of the baffle, and the push rod is passed 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.

[0010] Furthermore, a gear ring is provided on the circumferential side of one of the rotating rings, which meshes with the driving gear. The driving gear is mounted on the transmission shaft, the transmission shaft is mounted on the chassis and connected to the output end of the power equipment, the power equipment is mounted on the chassis, and the chassis is connected to the support ring.

[0011] Furthermore, two protrusions are provided on the side of another rotating ring in a centrally symmetrical manner. The protrusions are sleeved on the guide rod. The guide rod is 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 rod. The two ends of the third spring respectively abut against the mounting block and the protrusion, and are always in a compressed state. When the clamping block clamps the cylinder, the elastic force direction of the third spring is opposite to the rotation direction of the rotating ring. A second retaining ring is provided at the other end of the guide rod for abutting against the protrusion. A push block is provided on the side of one of the rotating rings. When in use, the push block pushes the protrusion.

[0012] Furthermore, two stoppers are arranged symmetrically around the support ring, and a thrust block is provided on the side of the other rotating ring, and the thrust block and the protrusion are respectively located on both sides of the push block. When the protrusion abuts against the second retaining ring, the thrust block abuts against the stopper.

[0013] Furthermore, a slide groove is provided on the surface of the movable frame along its length direction, and a slider is slidably fitted in the slide groove. The rotating shaft is rotatably installed in the slider. The two ends of the slider are respectively sleeved on the second screw and the cross bar and locked with nuts. The second screw and the cross bar are both installed on the movable frame. Both ends of the movable frame are sleeved on the connecting rod and 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.

[0014] Furthermore, two symmetrically arranged blocking rods are provided at one end of the base for abutting against the end of the cylinder. One end of the blocking rod is connected to the moving end of the vertical lifting mechanism, and the vertical lifting mechanism is installed below the base.

[0015] The beneficial effects of the present invention are that: the clamping mechanism can clamp cylinders of different sizes, and ensure that the cylinder is always located on the axis of the support ring after being firmly clamped, thereby ensuring the clamping accuracy of the cylinder and then ensuring the position accuracy during drilling; and it can simultaneously perform synchronous drilling operations on the circumference of the cylinder, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0017] Figure 1 It is a schematic three-dimensional diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 This is a side view of an embodiment of the present application.

[0019] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism of an embodiment of the present application.

[0020] Figure 4 This is the installation intention of the support frame of the embodiment of the present application.

[0021] Figure 5 This is a side view of the support frame of an embodiment of the present application installed on the base.

[0022] Figure 6 This is a three-dimensional schematic diagram of a support frame according to an embodiment of the present application.

[0023] Figure 7 This is a schematic diagram of a rotating ring installed on a support ring according to an embodiment of the present application.

[0024] Figure 8 for Figure 7 A magnified schematic diagram of .

[0025] Figure 9 This is a three-dimensional schematic diagram of one of the rotating rings in an embodiment of the present application.

[0026] Figure 10 This is a three-dimensional schematic diagram of another rotating ring in an embodiment of the present application.

[0027] Figure 11 This is a three-dimensional schematic diagram of the drilling mechanism of an embodiment of the present application.

[0028] 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 rod, 201 - support ring, 202 - support frame, 203 - clamping block, 204 - T-shaped plate, 205 - first screw, 206 - slide rod, 207 - support rod, 208 - first spring, 209 - first stop ring, 210 - rotating ring, 211 - limit rod, 212 - push rod, 213 - gear ring, 214 - main Moving gear, 215—transmission shaft, 216—base frame, 217—card slot, 218—card block, 219—baffle, 220—top 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—block, 230—thrust block, 301—moving frame, 302—rotating shaft, 303—slide groove, 304—slider, 305—second screw, 306—cross bar, 307—connecting rod. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] like Figures 1 to 11 As shown, an embodiment of the present application provides a cylindrical drilling device, including: a base 100, a clamping mechanism 200, a drilling mechanism 300, etc.

[0031] The base 100 is V-shaped, and a plurality of conveying wheels 101 are provided on both sides along its length direction. The axes of the conveying wheels 101 are parallel to the corresponding sides of the base 100 and are used to convey the cylinder, and the axis of the cylinder is parallel to the length direction of the base 100. Vertically arranged 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 circumference of the base 100 and located on the inner side of the support ring 201. The support frames 202 are arranged at equal intervals along the circumference direction of the support ring 201 and are arranged to move radially thereof. 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 on the outer sides of the support plate 102. The support frames 202 are provided with a plurality of spaced apart arrangements along its length direction. , and the clamping blocks 203 with adjustable spacing are used to clamp the cylinder, and when clamping the cylinder, the support frames 202 located on the upper and lower sides of the base 100 first move toward each other, and after the clamping blocks 203 on the upper and lower sides of the base 100 clamp the cylinder, the support frames 202 located on the outer sides of the support plate 102 move toward each other again to further clamp the cylinder, making the cylinder more stable; the drilling mechanism 300 includes four movable frames 301 respectively provided on the circumferential side of the base 100 and arranged at equal intervals in the circumferential direction, the movable frame 301 is arranged to move radially along the support ring 201, and a plurality of rotating shafts 302 with adjustable spacing and rotating around their own axes are provided along its length direction, and a detachable drill bit is provided at the end of the rotating shaft 302 for drilling holes in the cylinder, and when holes of different sizes need to be drilled, only the drill bit needs to be replaced.

[0032] Specifically, if Figure 1-Figure 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 outside of the clamping block 203, and 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 it is necessary to clamp cylinders of different lengths, it is only necessary to loosen the nuts, move the clamping block 203 along the slide rod 206, and then lock it with the nuts. The first screw rod 205 and the slide rod 206 are both installed on the support frame 202, and the two ends of the support frame 202 are sleeved on the support rod 207. The support rod 207 above the base 100 is installed on the bracket 103, the bracket 103 is installed on the support plate 102, and the support rod 207 below the base 100 is installed on the bottom plate 1 04, the bottom plate 104 is installed on the bottom of the base 100, and the support rod 207 located on the outside of 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, and the two ends of the first spring 208 respectively abut against the support frame 202 and the support plate 102, the bracket 103, and the bottom plate 104, and are 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 the cylinder needs to be clamped, it is only necessary to apply a force to the support frame 202 toward the axis of the support ring 201. After the drilling of the cylinder is completed, the force applied to the support frame 202 can be released.

[0033] Specifically, if Figure 3-Figure 6As shown, in order to facilitate the automatic clamping of the cylinder, a rotating ring 210 is provided on both sides of the support ring 201, and two limit rods 211 arranged symmetrically and detachably connected to the center of the rotating ring 210 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 connected to each other, the inner side of 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 smaller than the distance between 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, one of the rotating rings 210 is driven to rotate, and the limit rod 211 will gradually align with the two support frames 202 located on the upper and lower sides of the base 100 respectively. The push rod 212 on the rotating ring 210 contacts the push rod 212 on the rotating ring 210. As the rotating ring 210 continues to rotate, the support frame 202 will be forced to move along the radial direction of the support ring 201, thereby clamping the cylinder and making the axis of the cylinder coaxial with the axis of the support ring 201. In this process, the push rod 212 will first contact the first arc segment of the limiting rod 211, and under the action of the first arc segment, the push rod 212 is forced to move. After the push rod 212 contacts 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 again to start rotating, so that the limiting rod 211 on the rotating ring 210 contacts the push rod 212 located on the outside of the support plate 102, forcing the support frame 202 outside the support plate 102 to move toward the support plate 102, thereby further clamping the cylinder and ensuring the stability of the cylinder.

[0034] Specifically, if Figure 3 As shown, a ring gear 213 is provided on the circumference of one of the rotating rings 210, and the ring gear 213 is engaged with a driving gear 214. The driving gear 214 is mounted on a transmission shaft 215, and the transmission shaft 215 is mounted on a base frame 216 and connected to the output end of a power device, such as a motor. The power device is mounted on the base frame 216, and the base frame 216 is connected to the support ring 201. When it is necessary to drive the rotating ring 210 to rotate, it is only necessary to drive the transmission shaft 215 to rotate through the power device. Under the meshing transmission of the driving gear 214 and the ring gear 213, the rotating ring 210 will be driven to rotate.

[0035] Specifically, if Figure 3-10As shown, two protrusions 223 arranged symmetrically with respect to the center are provided on the side of another rotating ring 210. The protrusion 223 is sleeved on the guide rod 224. The guide rod 224 is arc-shaped, and one end is connected to the mounting block 225. The mounting block 225 is installed on the support ring 201. A third spring 226 is sleeved on the guide rod 224. The two ends of the third spring 226 respectively abut against the mounting block 225 and the protrusion 223, and are always in a compressed state. When the clamping block 203 clamps the cylinder, the elastic direction of the third spring 226 is opposite to the rotation direction of the rotating ring 210. A second retaining ring 227 is provided on the other end of the guide rod 224 for abutting against the protrusion 223. A push block 228 is provided on the side of one of the rotating rings 210. When one rotating ring 210 rotates, as mentioned above, it will drive the support frames 202 located on the upper and lower sides of the base 100 to move toward each other. After one of the rotating rings 210 rotates a predetermined angle, the push block 228 will abut against the protrusion 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 limit 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 to move. As one of the rotating rings 210 continues to rotate, the push block 228 will push the protrusion 223 to move synchronously, and drive the other rotating ring 210 to start rotating, then the support frame 202 located on the outer side of the support plate 102 will be moved. 2 will move toward each other, at this time the third spring 226 is further compressed, and after the clamping blocks 203 on both sides of the support plate 102 clamp the cylinder, the rotating ring 210 can be stopped, and after the clamping of the cylinder is stable, the further rotation of the rotating ring 210 will be prevented by the obstruction of the cylinder itself. After the drilling of the cylinder is completed, one of the rotating rings 210 is rotated in the opposite direction, and the other rotating ring 210 is rotated in the opposite direction synchronously with it under the action of the third spring 226. At this time, the clamping blocks 203 on the upper and lower sides of the base 100 will not loosen the cylinder, while the clamping blocks 203 on the side of the support plate 102 will loosen the cylinder. After the clamping blocks 203 on the side 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 limit 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 returns to the base 100. 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 quick. In addition, the staged rotation of the two rotating rings 210 can also avoid the clamping block 203 on the side of the support plate 102 moving first and causing interference in the clamping process. When it is necessary to clamp cylinders of different diameters, it is only necessary to replace the limit rods 211 of different specifications.

[0036] Specifically, if Figure 7-Figure 8As shown, in order to facilitate the installation of the limiting rod 211, the ends of the first arc segment and the second arc segment are both provided with straight segments, and a groove 217 is provided on the side of the rotating ring 210, and the straight segment is matched with the groove 217. In order to prevent the push rod 212 from sliding out of the limiting rod 211, the straight segment at the end of the second arc segment protrudes from the inner side of the second arc segment, thereby being able to block the push rod 212, and a block 218 is passed through the side of the straight segment, and a baffle 219 is provided on the end face of the block 218. A push rod 220 is provided on the surface of the baffle 219, and the push rod 220 is passed through the convex plate 221. The convex plate 22 The second spring 222 is mounted on the rotating ring 210. The second spring 222 is sleeved on the push rod 220. The two ends of the second spring 222 abut against the convex plate 221 and the baffle 219 respectively and are always in a compressed state. When installing the limiting rod 211, a 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 limiting rod 211 is inserted into the clamping groove 217. Then, the force applied to the push rod 220 is released. The clamping block 218, under the action of the second spring 222, penetrates into the straight section of the limiting rod 211, thereby completing the installation of the limiting rod 211.

[0037] Specifically, if Figure 7-10 As shown, two stoppers 229 are provided on the circumference of the support ring 201 and are arranged in a centrally symmetrical manner. A thrust block 230 is provided on the side of the other rotating ring 210. In order to avoid interference with the push block 228, the thrust block 230 and the protrusion 223 are respectively located on both sides of the push block 228. When the other rotating ring 210 is reset, the protrusion 223 abuts against the second stop ring 227, and at this time the thrust block 230 abuts against the stopper 229, reducing the collision force on the second stop ring 227 and reducing the possibility of damage to it.

[0038] Specifically, if Figure 1 、 Figure 2 、 Figure 11The second screw 305 and the cross bar 306 are both mounted on the movable frame 301, and the two ends of the movable frame 301 are respectively mounted on the second screw 305 and the cross bar 306, and are locked with nuts. When the position of the drill bit needs to be adjusted according to processing requirements, it is only necessary to loosen the nuts, and then slide the slider 304 along the length direction of the cross bar 306 and lock the slider 304 with the nuts again. If a different number of holes needs to be drilled, it is only necessary to increase the number of sliders 304 and the rotating shaft 302. The second screw 305 and the cross bar 306 are all mounted on the movable frame 301, and the two ends of the movable frame 301 are both mounted on the connecting rod 307. 01 plays a guiding role in its movement 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. When drilling, the four moving frames 301 are driven toward the cylinder by the linear mechanism, and the rotating shaft 302 is driven to rotate to complete the drilling operation. As for the drive of the rotating shaft 302, the rotating shaft 302 can be driven directly by a power device alone, or by a belt and pulley structure. The two adjacent rotating shafts 302 can be driven by a belt. At this time, only one driving 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 the rotating shaft 302 needs to be added or moved, only the belt needs to be replaced.

[0039] Specifically, if Figure 5 As shown, two symmetrically arranged blocking rods 105 are provided at one end of the base 100 for abutting against the end of the cylinder. One end of the blocking rod 105 is connected to the movable end of the vertical lifting mechanism. The vertical lifting mechanism is installed below the base 100. When the cylinder is transported to the base 100, the blocking rod 105 is used to block the cylinder. After the drilling operation of the cylinder is completed, the blocking rod 105 can be driven downward by the vertical lifting mechanism to release the blocking effect of the blocking rod 105, so that the cylinder is transported away through the conveying wheel 101.

[0040] More specifically, Figure 4 As shown, in order to facilitate the clamping block 203 to clamp the cylinder, long holes arranged along the length direction are provided on the base 100 and the support plate 102 for passing the clamping block 203, and the drill bit can also pass through the long holes for drilling operations.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A barrel drilling device, characterized in that: include: The base (100) is V-shaped, and a plurality of conveying wheels (101) are provided on both sides along the length direction thereof, wherein the axes of the conveying wheels (101) are parallel to the corresponding sides of the base (100) and are used to convey the cylinder, and the axes of the cylinder are parallel to the length direction of the base (100), and vertically arranged support plates (102) are provided on both sides of the base (100); The clamping mechanism (200) comprises two support rings (201) respectively arranged at both ends of the base (100), and four support frames (202) respectively arranged on the circumference of the base (100) and located inside the support rings (201), wherein the support frames (202) are arranged at equal intervals along the circumference of the support ring (201) and are arranged to move along the radial direction thereof, 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 on the outer sides of the support plate (102), and the support frames (202) are provided with a plurality of spaced-apart clamping blocks (203) along the length direction thereof and with adjustable spacing, for clamping the cylinder; The drilling mechanism (300) comprises four movable frames (301) respectively provided on the circumferential sides of the base (100) and arranged at equal intervals along the circumferential direction. The movable frames (301) are arranged to move radially along the support ring (201) and are provided with a plurality of rotating shafts (302) with adjustable spacing and rotating around their own axes along their length directions. The ends of the rotating shafts (302) are provided with detachably connected drill bits for drilling holes in the cylinder. Both ends of the support frame (202) are sleeved on the support rod (207), the support rod (207) located above the base (100) is installed on the bracket (103), the bracket (103) is installed on the support plate (102), the support rod (207) located below the base (100) is installed on the bottom plate (104), the bottom plate (104) is installed at the bottom of the base (100), and the support rod (207) located outside the support plate (102) is installed on the bottom plate (104). 7) Installed on the outer wall of the support plate (102), the support rod (207) is provided with a first spring (208), and the two ends of the first spring (208) at different positions respectively abut against the support frame (202) and the support plate (102) or the bracket (103) or the bottom plate (104) corresponding to the position thereof, and are always in a compressed state, and the end of the support rod (207) is provided with a first retaining ring (209) for abutting against the support frame (202); A rotating ring (210) is provided on both sides of the support ring (201), and two limiting rods (211) arranged symmetrically with respect to the center are detachably connected on the inner side of the rotating ring (210), and the limiting rods (211) include a first arc segment and a second arc segment connected to each other, the inner side of 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 smaller 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 axes of the push rods (212) are parallel to the length direction of the support frame (202). When in use, the limiting rod (211) located on the same rotating ring (210) contacts the push rods (212) on the two support frames (202) that are parallel to each other; The side of the other rotating ring (210) is provided with two protrusions (223) arranged in a central symmetrical manner, and the protrusion (223) is sleeved on the guide rod (224), and the guide rod (224) is arc-shaped, and one end is connected to the mounting block (225), and the mounting block (225) is mounted on the support ring (201). A third spring (226) is sleeved on the guide rod (224), and the two ends of the third spring (226) respectively abut against the mounting block (225) and the protrusion (223), and are always in a compressed state. When the clamping block (203) clamps the cylinder, the elastic force direction of the third spring (226) is opposite to the rotation direction of the rotating ring (210). The other end of the guide rod (224) is provided with a second retaining ring (227) for abutting against the protrusion (223); A push block (228) is provided on the side of one of the rotating rings (210), and when in use, the push block (228) pushes the protrusion (223); Two stoppers (229) are provided on the circumferential side of the support ring (201) and are arranged in a centrally symmetrical manner. A thrust block (230) is provided on the side of the other rotating ring (210), and the thrust block (230) and the protrusion (223) are respectively located on both sides of the push block (228). When the protrusion (223) abuts against the second retaining ring (227), the thrust block (230) abuts against the stopper (229).

2. The barrel drilling equipment according to claim 1, characterized in that: The clamping block (203) is V-shaped and has a T-shaped plate (204) on the outside. The two ends of the T-shaped plate (204) are respectively sleeved on the first screw rod (205) and the sliding rod (206) and locked with nuts. The first screw rod (205) and the sliding rod (206) are both installed on the support frame (202).

3. The barrel drilling equipment according to claim 1, characterized in that: The ends of the first arc segment and the second arc segment are both provided with a straight segment, a slot (217) is provided on the side of the rotating ring (210), the straight segment is fitted into the slot (217), and the straight segment located at the end of the second arc segment protrudes from the inner side of the second arc segment, a clamping block (218) is passed through the side of the straight segment, a baffle (219) is provided on the end face of the clamping block (218), a push rod (220) is provided on the surface of the baffle (219), the push rod (220) is passed through the convex plate (221), the convex plate (221) is mounted on the rotating ring (210), a second spring (222) is sleeved on the push rod (220), and the two ends of the second spring (222) respectively abut against the convex plate (221) and the baffle (219), and are always in a compressed state.

4. The barrel drilling equipment according to claim 1, characterized in that: A gear ring (213) is provided on the circumference of one of the rotating rings (210), the gear ring (213) meshing with a driving gear (214), the driving gear (214) being mounted on a transmission shaft (215), the transmission shaft (215) being mounted on a chassis (216) and connected to an output end of a power device, the power device being mounted on the chassis (216), and the chassis (216) being connected to the support ring (201).

5. The barrel drilling equipment according to claim 1, characterized in that: The surface of the movable frame (301) is provided with a slide groove (303) along its length direction, and a slider (304) is slidably fitted in the slide groove (303). The rotating shaft (302) is rotatably installed in the slider (304), and the two ends of the slider (304) are respectively sleeved on the second screw rod (305) and the cross rod (306) and locked with nuts. The second screw rod (305) and the cross rod (306) are both installed on the movable frame (301). The two ends of the movable frame (301) are both sleeved on the connecting rod (307) and connected to the movable end of the linear mechanism. The connecting rod (307) and the linear mechanism are respectively installed below the base (100) and on the support plate (102).

6. The barrel drilling equipment according to claim 1, characterized in that: One end of the base (100) is further provided with two symmetrically arranged blocking rods (105) for contacting the end of the cylinder. One end of the blocking rod (105) is connected to the movable end of a vertical lifting mechanism, and the vertical lifting mechanism is installed below the base (100).

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