A kind of opening device for processing cylindrical parts

Abstract

The utility model discloses a kind of hole opening devices for cylindrical part machining, is related to cylindrical part machining technical field.The utility model includes cutting machine, and further include: rotating part, the rotating part is installed in the right side of the front of cutting machine, the rotating part is used to assist the rotation of cylindrical part;Auxiliary part, the auxiliary part is installed in the left side of rotating part.The utility model is by setting rotating part, specifically is to start motor two, make pinion drive gear rotation, and by the circular arc notch of gear drive circular boss to slide outward from inside to clamp cylindrical part, then start motor one, make special-shaped fixed plate rotation, so it can clamp cylindrical part and drive it to rotate, and can be controlled by motor one to the rotation of cylindrical part, the outer surface of cylindrical part needing to be drilled is rotated to the bottom of cutting machine, facilitate cutting machine to set up several round holes on the outer surface of cylindrical part, guarantee the drilling efficiency of device.

Description

Technical Field

[0001] This utility model belongs to the field of cylindrical part processing technology, and in particular relates to a hole-opening device for processing cylindrical parts. Background Technology

[0002] Cylindrical parts refer to mechanical parts that are cylindrical or nearly cylindrical in shape. Cylindrical parts usually have inner and outer diameters and a certain length. They are often used in mechanical equipment as components for support, guidance, connection or force transmission. Cylindrical parts are widely used in automobiles, aviation, engineering machinery and other fields, such as bearing sleeves, bushings, piston pins, etc. Cylindrical parts are characterized by simple structure, high machining accuracy, smooth surface, and the ability to withstand large radial or axial loads. Most cylindrical parts are made of metal or high-strength plastic and are processed by turning, cutting, welding and other processes. When machining cylindrical parts, several round holes are made on the outer surface to facilitate the assembly of several cylindrical parts into a whole. However, when machining cylindrical parts, they are usually just placed on a machining platform for cutting. The rotation of the cylindrical parts needs to be repeatedly adjusted to complete the opening of the round holes, which affects the efficiency of the device in opening holes in cylindrical parts. Therefore, we propose an opening device for machining cylindrical parts. Utility Model Content

[0003] The purpose of this invention is to provide a hole-opening device for processing cylindrical parts. Specifically, by activating a second motor, a small gear drives a large gear to rotate. The large gear's arc groove causes a circular protrusion to slide outwards, clamping the cylindrical part from the inside. Then, a first motor is activated, causing a shaped fixing plate to rotate. This clamps the cylindrical part and drives it to rotate circumferentially. The rotation of the cylindrical part can be controlled by the first motor, rotating the outer surface of the cylindrical part to be holed to the bottom of the cutting machine. This facilitates the cutting machine opening several circular holes on the outer surface of the cylindrical part, ensuring the device's hole-opening efficiency. This solves the problem that existing methods of processing cylindrical parts require opening several circular holes on the outer surface to facilitate assembly of multiple cylindrical parts into a single unit. However, during processing, the cylindrical parts are usually simply placed on a processing platform for cutting, requiring repeated adjustments to the rotation of the cylindrical parts to complete the hole opening, thus affecting the device's hole-opening efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a hole-opening device for machining cylindrical parts, including a cutting machine and: A rotating part is mounted on the right side of the front of the cutting machine, and the rotating part is used to assist the rotation of the cylindrical part; An auxiliary part is installed on the left side of the rotating part. The auxiliary part is used to extend the support of the cylindrical part from the bottom and assist the rotating part in clamping the cylindrical part. The rotation of the rotating part is used to assist the cutting machine in cutting several circular holes on the outer surface of the cylindrical part.

[0005] Furthermore, the rotating part includes a rotating assembly disposed on the right side of the front of the cutting machine, the rotating assembly being used to clamp the cylindrical part from the inside; A limiting component is installed on the left side of the rotating component, and the limiting component is used to limit the movement of the rotating component; The limiting component enables the rotating component to operate more smoothly.

[0006] Furthermore, the auxiliary part includes an adjustment assembly mounted on the bottom left side of the rotating assembly, the adjustment assembly being used to support the cylindrical part from the bottom to provide additional support for the rotating assembly; A quick-release assembly is installed at the bottom of the rotating assembly and is used to quickly install the adjusting assembly and the rotating assembly. The lifting and lowering of the adjustment component is used to adjust the cylindrical part to a height that is convenient for the rotating component to clamp, thereby assisting the rotating component in its operation.

[0007] Furthermore, the rotating assembly includes a Y-shaped plate disposed on the right side of the cutting machine. A shaped fixing plate is rotatably connected to the top left side of the Y-shaped plate. Four sliding rods are slidably connected to the left side of the shaped fixing plate. A small gear is rotatably connected to the top left side of the shaped fixing plate. A large gear is rotatably connected to the center left side of the shaped fixing plate. The large gear has four arc-shaped slots inside. Circular protrusions are slidably connected inside the arc-shaped slots. The circular protrusions are installed on the outer surface of the left side of the sliding rods. The large gear and the small gear are meshed with each other. A motor one is installed at the center right side of the shaped fixing plate, and a motor two is installed at the top right side of the shaped fixing plate. By setting a large gear, the large gear can drive the slide bar to move through the arc groove when it rotates, thereby simultaneously controlling the four slide bars to move closer or further apart from each other. The outer surface of the slide rod has several slots, which can increase the friction between the slide rod and the inner surface of the cylindrical part.

[0008] Furthermore, the limiting component includes four sliding grooves, all of which are formed on the left outer surface of the irregularly shaped fixing plate. The four sliding grooves are arranged in a circumferential array with the irregularly shaped fixing plate as the center, and the inner surface of the sliding groove is slidably connected to the outer surface of the sliding rod. By setting the sliding of the slide rail and the slide bar, the movement of the slide bar can be limited to prevent the slide bar from deflecting during movement and causing the slide bar to jam with the arc groove. The limiting component also includes four limiting protrusions, which are installed at the center of the left side of the round protrusion. The limiting protrusions are used to position the irregular fixed plate and the large gear to prevent the large gear from shifting during operation and affecting the round protrusion's ability to drive the slide bar to unfold.

[0009] Furthermore, the adjustment assembly 31 includes a concave top plate, a rectangular bottom plate at the bottom of the concave top plate, rotating rods rotatably connected to the front and back sides of the left bottom of the concave top plate, C-shaped sliding plates rotatably connected to the right bottom sides of the two rotating rods rotatably connected to each other, rotating rod 2 rotatably connected to the center of the side of the two rotating rods rotatably connected to each other, rotating rod 2 rotatably connected to the top left side of the rectangular bottom plate, slide rails installed on the front and back sides of the right bottom of the concave top plate, slide rails slidably connected to the top right side of rotating rod 2, a lead screw rotatably connected to the center of the top of the rectangular bottom plate, the lead screw threadedly connected to the C-shaped sliding plate, and a motor 3 installed at the center of the right side of the rectangular bottom plate, the coupling of the left output end of the motor 3 being installed on the outer surface of the right side of the lead screw; Start motor three to move the C-shaped slide to the left, causing the bottom right side of rotating rod one to rotate to the left, which in turn drives rotating rod two to rotate. This causes the top right side of rotating rod two to move to the left along the inner surface of the slide rail. In this way, the rotation of rotating rod one and rotating rod two can drive the concave top plate to move upward, thereby enabling the concave top plate to push the cylindrical parts upward. This makes it easy to adjust the cylindrical parts to a range that is convenient for the rotating assembly to work, ensuring that the rotating assembly can work smoothly. The concave curved surface at the top of the concave top plate is designed to better fit the cylindrical part and prevent the cylindrical part from sliding outward from the top of the concave top plate.

[0010] Furthermore, the quick-release assembly includes two irregularly shaped protrusions, which are respectively installed on the front and back sides of the bottom of the Y-shaped plate. A quick-release insert is inserted into the side of each irregularly shaped protrusion near the center of the bottom of the rectangular base plate. The two quick-release inserts are respectively installed at two corners of the bottom of the rectangular base plate. A rectangular slot is formed at the center of the interior of each irregularly shaped protrusion. A sliding plate is slidably connected within the rectangular slot of the irregularly shaped protrusion. Two pull rods are installed at the center of the sliding plate. The back of each pull rod passes through the quick-release insert, and the front of each pull rod extends outward through the irregularly shaped protrusion and is slidably connected. A handle is installed on the side of each pull rod away from the quick-release insert. A spring is sleeved on the outer surface of each pull rod. The front of the spring is installed on the inner surface of the rectangular slot of the irregularly shaped protrusion, and the back of the spring is installed on the outer surface of the sliding plate. By setting a spring, the spring can drive the pull rod to return to its original position and insert into the quick-release plate after it is no longer compressed, thus completing the quick connection between the irregular protrusion and the quick-release plate. The quick-release assembly includes two rectangular support blocks and a U-shaped support plate. The U-shaped support plate is installed on the left side of the bottom of the rectangular base plate, and the rectangular support blocks are installed on the left bottom of the irregular protrusion. A roller is rotatably connected to the right bottom of the irregular protrusion. The roller of the irregular protrusion facilitates the movement of the irregular protrusion, thereby completing the installation and removal of the irregular protrusion and the quick-release insert.

[0011] This utility model has the following beneficial effects: 1. This utility model incorporates a rotating part, specifically by starting motor two, which causes the small gear to drive the large gear to rotate. The large gear's arc groove drives the circular protrusion to slide outward, clamping the cylindrical part from the inside. Then, motor one is started, causing the irregularly shaped fixing plate to rotate. This clamps the cylindrical part and drives it to rotate circumferentially. Furthermore, the rotation of the cylindrical part can be controlled by motor one, rotating the outer surface of the cylindrical part that needs to be perforated to the bottom of the cutting machine. This facilitates the cutting machine to open several circular holes on the outer surface of the cylindrical part, ensuring the device's perforation efficiency.

[0012] 2. This utility model, by setting an auxiliary part, specifically inserts a quick-release plate into the interior of the irregular protrusion, then releases the handle, causing the spring to rebound after losing its compression. The rebound of the spring pushes the slide plate and the pull rod to slide backward, inserting the pull rod into the quick-release plate. In this way, the Y-shaped plate can be installed on the outside of the rectangular base plate, preventing the Y-shaped plate from sliding outward due to vibrations generated during equipment operation, and ensuring that the rotating part can stably maintain its working state in its original position.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the Y-shaped plate structure of this utility model; Figure 3 This is a schematic diagram of the large gear structure of this utility model; Figure 4 This is a schematic diagram of the concave top plate structure of this utility model; Figure 5 This is a cross-sectional schematic diagram of the irregular protrusion of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Cutting machine; 2. Rotating part; 21. Rotating assembly; 211. Y-shaped plate; 212. Irregularly shaped fixing plate; 213. Slide rod; 214. Round protrusion; 215. Small gear; 216. Large gear; 217. Arc groove; 218. Motor 1; 219. Motor 2; 22. Limiting assembly; 221. Slide groove; 222. Limiting protrusion; 3. Auxiliary part; 31. Adjusting assembly; 311 312. Rectangular base plate; 313. Rotating rod one; 314. Rotating rod two; 315. Slide rail; 316. C-shaped sliding plate; 317. Lead screw; 318. Motor three; 32. Quick-release assembly; 321. Irregularly shaped protrusion; 322. Quick-release insert plate; 323. Slide plate; 324. Pull rod; 325. Handle; 326. Spring; 327. Rectangular support block; 328. U-shaped support plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1-5 As shown, this utility model is a hole-opening device for processing cylindrical parts, including a cutting machine 1 and further comprising: Rotating part 2 is installed on the right side of the front of the cutting machine 1. Rotating part 2 is used to assist the rotation of the cylindrical part. Auxiliary part 3 is installed on the left side of rotating part 2. Auxiliary part 3 is used to extend the support of the cylindrical part from the bottom and assist rotating part 2 in clamping the cylindrical part. The rotation of the rotating part 2 is used to assist the cutting machine 1 in cutting several round holes on the outer surface of the cylindrical part.

[0019] The rotating part 2 includes a rotating assembly 21, which is disposed on the right side of the front of the cutting machine 1. The rotating assembly 21 is used to clamp the cylindrical part from the inside. Limiting component 22 is installed on the left side of rotating component 21 and is used to limit the movement of rotating component 21; The limiting component 22 enables the rotating component 21 to operate more smoothly.

[0020] The auxiliary part 3 includes an adjustment component 31, which is installed on the bottom left side of the rotating component 21. The adjustment component 31 is used to support the cylindrical part from the bottom and provide additional support for the rotating component 21. Quick-release component 32 is installed at the bottom of rotating component 21 and is used to quickly install adjusting component 31 and rotating component 21. The lifting and lowering of the adjusting component 31 is used to adjust the cylindrical part to a height that is easy for the rotating component 21 to clamp, thereby assisting the rotating component 21 in its operation.

[0021] The rotating assembly 21 includes a Y-shaped plate 211, which is located on the right side of the cutting machine 1. A shaped fixing plate 212 is rotatably connected to the top left side of the Y-shaped plate 211. Four sliding rods 213 are slidably connected to the left side of the shaped fixing plate 212. A small gear 215 is rotatably connected to the top left side of the shaped fixing plate 212. A large gear 216 is rotatably connected to the center left side of the shaped fixing plate 212. The large gear 216 has four arc-shaped slots 217 inside. A round protrusion 214 is slidably connected inside the arc-shaped slots 217. The round protrusion 214 is installed on the outer surface of the left side of the sliding rod 213. The large gear 216 and the small gear 215 are meshed with each other. A motor 1 218 is installed at the center right side of the shaped fixing plate 212. A motor 219 is installed at the top right side of the shaped fixing plate 212. Start motor 219, causing small gear 215 to drive large gear 216 to rotate. The circular groove 217 of large gear 216 drives circular protrusion 214 to slide outward to clamp the cylindrical part from the inside. Then start motor 218 to rotate the irregular fixed plate. This clamps the cylindrical part and drives it to rotate in a circle. The rotation of the cylindrical part can be controlled by motor 218. Rotate the outer surface of the cylindrical part that needs to be perforated to the bottom of the cutting machine 1, so that the cutting machine 1 can open several circular holes on the outer surface of the cylindrical part, ensuring the perforation efficiency of the device. The outer surface of the slide rod 213 has several slots, which can increase the friction between the slide rod 213 and the inner surface of the cylindrical part.

[0022] The limiting component 22 includes four sliding grooves 221. All four sliding grooves 221 are formed on the left outer surface of the irregular fixed plate 212. The four sliding grooves 221 are arranged in a circumferential array with the irregular fixed plate 212 as the center. The inner surface of the sliding groove 221 is slidably connected to the outer surface of the sliding rod 213. The limiting component 22 also includes four limiting protrusions 222. The limiting protrusions 222 are installed at the center of the left side of the round protrusion 214. The limiting protrusions 222 are used to position the irregular fixed plate 212 and the large gear 216 to prevent the large gear 216 from shifting during operation and affecting the round protrusion 214 from driving the slide rod 213 to unfold.

[0023] The adjusting assembly 31 includes a concave top plate 311, a rectangular bottom plate 312 at the bottom of the concave top plate 311, rotating rods 313 rotatably connected to the front and back of the left bottom of the concave top plate 311, a C-shaped sliding plate 316 rotatably connected to the right bottom of the two rotating rods 313 that are close to each other, a rotating rod 314 rotatably connected to the center of the side of the two rotating rods 313 that are close to each other, the rotating rod 314 rotatably connected to the top left of the rectangular bottom plate 312, a slide rail 315 installed on the front and back of the right bottom of the concave top plate 311, the slide rail 315 slidably connected to the top right of the rotating rod 314, a lead screw 317 rotatably connected to the top center of the rectangular bottom plate 312, the lead screw 317 threadedly connected to the C-shaped sliding plate 316, a motor 318 installed at the center right of the rectangular bottom plate 312, and a coupling at the left output end of the motor 318 installed on the right outer surface of the lead screw 317. The concave curved surface at the top of the concave top plate 311 is designed to better fit the cylindrical part and prevent the cylindrical part from sliding outward from the top of the concave top plate 311.

[0024] The quick-release assembly 32 includes two irregularly shaped protrusions 321, which are respectively installed on the front and back of the bottom of the Y-shaped plate 211. A quick-release insert 322 is inserted into one side of each irregularly shaped protrusion 321 near the center of the bottom of the rectangular base plate 312. The two quick-release inserts 322 are respectively installed at two corners of the bottom of the rectangular base plate 312. A rectangular slot is formed in the center of the interior of each irregularly shaped protrusion 321, and a sliding plate 323 is slidably connected within the rectangular slot of the irregularly shaped protrusion 321. Two pull rods 324 are installed at the center of 323. The back of the pull rods 324 passes through the quick-release plate 322, and the front of the pull rods 324 extends outward through the irregular protrusion 321 and is slidably connected. A handle 325 is installed on the side of the two pull rods 324 away from the quick-release plate 322. A spring 326 is sleeved on the outer surface of the pull rods 324. The front of the spring 326 is installed on the inner surface of the rectangular slot of the irregular protrusion 321, and the back of the spring 326 is installed on the outer surface of the front of the slide plate 323. The quick-release plate 322 is inserted into the interior of the irregular protrusion 321. Then, the handle 325 is released, causing the spring 326 to rebound after losing its compression. The rebound of the spring 326 pushes the slide plate 323 and the pull rod 324 to slide backward, inserting the pull rod 324 into the quick-release plate 322. This allows the Y-shaped plate 211 to be installed on the outside of the rectangular base plate 312, preventing the Y-shaped plate 211 from sliding outward due to vibrations generated during equipment operation, and ensuring that the rotating part 2 can stably maintain its working state in its original position. The quick-release assembly 32 includes two rectangular support blocks 327 and a U-shaped support plate 328. The U-shaped support plate 328 is installed on the left side of the bottom of the rectangular base plate 312, and the rectangular support blocks 327 are installed on the left bottom of the irregular protrusion 321. A roller is rotatably connected to the right bottom of the irregular protrusion 321. The roller of the irregular protrusion 321 facilitates the movement of the irregular protrusion 321, thereby completing the installation and removal of the irregular protrusion 321 and the quick-release insert plate 322.

[0025] A specific application of this embodiment is as follows: When in use, first place the cylindrical part at the top center of the concave top plate 311, then start the motor 318, so that the lead screw 317 rotates counterclockwise and drives the bottom right side of the rotating rod 313 to rotate to the left through the C-shaped slide plate 316, so that the top left side of the rotating rod 313 moves to the right, and the rotation of the rotating rod 313 drives the rotating rod 314 to rotate, so that the top right side of the rotating rod 314 slides to the left along the slide rail 315, so that the concave top plate 311 gradually drives the cylindrical part to move upward and adjust it to a position that facilitates the operation of the rotating part 2. Next, move the Y-shaped plate 211 to the right, and fit the irregular protrusion 321 onto the outside of the quick-release plate 322. Then, release the handle 325, so that after the spring 326 loses its compression, the handle 325 drives the pull rod 324 to return to its original position and insert into the inside of the quick-release plate 322, thus completing the connection between the irregular protrusion 321 and the quick-release plate 322, and then quickly install the Y-shaped plate 211 onto the right side of the rectangular base plate 312. Next, start motor 219, which drives pinion 215 to rotate. Pinion 215 then drives large gear 216 at the bottom to rotate through meshing connection. This causes round protrusion 214 to slide along the inner surface of arc groove 217 and drive slide rod 213 to slide outward along the inner surface of slide groove 221, clamping it from the inside of the cylindrical part. This makes it easier for rotating assembly 21 to adjust the rotation of the cylindrical part. Finally, the cutting machine 1 is started to cut the cylindrical part at the bottom. The cutting machine 1 is equipped with a Precitec ProCutter 2.0 laser cutting head. The laser of the cutting machine 1 generates a high-energy laser beam. This laser beam is transmitted to the cutting head of the cutting machine 1 through an optical fiber, and the collimating lens adjusts it into parallel light. The focusing lens then focuses the beam into a tiny spot, forming a high-energy-density beam that instantly melts or vaporizes the workpiece material. Then, the auxiliary gas is ejected at high speed through the nozzle to blow away the molten residue and form a clean cut. Under the control of the CNC system, the cutting head of the cutting machine 1 moves along the preset path to cut the required holes. Then, the motor 218 is started, which drives the irregularly shaped fixing plate 212 to rotate. In turn, the irregularly shaped fixing plate 212 drives the cylindrical part to rotate. The rotation of the cylindrical part is adjusted to facilitate the cutting machine 1 to cut several round holes on the outer surface of the cylindrical part. After the holes are cut, the motor 218 and the cutting machine 1 are turned off, and then the processed cylindrical part is removed.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hole-opening device for machining cylindrical parts, comprising a cutting machine (1), characterized in that, Also includes: Rotating part (2), the rotating part (2) is installed on the right side of the front of the cutting machine (1), the rotating part (2) is used to assist the rotation of the cylindrical part; Auxiliary part (3) is installed on the left side of rotating part (2). The auxiliary part (3) is used to extend the support of the cylindrical part from the bottom and assist the rotating part (2) in clamping the cylindrical part. The rotation of the rotating part (2) is used to assist the cutting machine (1) in cutting several round holes on the outer surface of the cylindrical part.

2. The hole-opening device for machining cylindrical parts according to claim 1, characterized in that, The rotating part (2) includes a rotating assembly (21), which is disposed on the right side of the front of the cutting machine (1). The rotating assembly (21) is used to clamp the cylindrical part from the inside. A limiting component (22) is installed on the left side of the rotating component (21) and is used to limit the movement of the rotating component (21). The limiting component (22) enables the rotating component (21) to operate more smoothly.

3. The hole-opening device for machining cylindrical parts according to claim 2, characterized in that, The auxiliary part (3) includes an adjustment component (31), which is installed on the bottom left side of the rotating component (21). The adjustment component (31) is used to support the cylindrical part from the bottom to provide additional support for the rotating component (21). Quick-release assembly (32), which is installed at the bottom of rotating assembly (21), is used to quickly install the adjusting assembly (31) and rotating assembly (21); The lifting and lowering of the adjustment component (31) is used to adjust the cylindrical part to a height that is easy for the rotating component (21) to clamp, thereby assisting the rotating component (21) in its operation.

4. The hole-opening device for machining cylindrical parts according to claim 3, characterized in that, The rotating assembly (21) includes a Y-shaped plate (211), which is located on the right side of the cutting machine (1). A shaped fixing plate (212) is rotatably connected to the top left side of the Y-shaped plate (211). Four sliding rods (213) are slidably connected to the left side of the shaped fixing plate (212). A small gear (215) is rotatably connected to the top left side of the shaped fixing plate (212). A large gear (216) is rotatably connected to the center left side of the shaped fixing plate (212). The large gear (216) has four arc-shaped slots (217) inside. A circular protrusion (214) is slidably connected in the arc-shaped slot (217). The circular protrusion (214) is installed on the left outer surface of the slide rod (213). The large gear (216) and the small gear (215) are meshed with each other. A motor one (218) is installed at the center of the right side of the irregular fixed plate (212). A motor two (219) is installed at the top right side of the irregular fixed plate (212). The outer surface of the slide rod (213) is provided with several slots, and the slots of the slide rod (213) can increase the friction between the slide rod (213) and the inner surface of the cylindrical part.

5. The hole-opening device for machining cylindrical parts according to claim 4, characterized in that, The limiting component (22) includes four slide grooves (221), all of which are opened on the left outer surface of the irregular fixed plate (212). The four slide grooves (221) are arranged in a circumferential array with the irregular fixed plate (212) as the center. The inner surface of the slide groove (221) is slidably connected to the outer surface of the slide rod (213). The limiting component (22) further includes four limiting protrusions (222). The limiting protrusions (222) are installed at the center of the left side of the round protrusion (214). The limiting protrusions (222) are used to position the irregular fixed plate (212) and the large gear (216) to prevent the large gear (216) from shifting during operation and affecting the round protrusion (214) from driving the slide rod (213) to unfold.

6. The hole-opening device for machining cylindrical parts according to claim 3, characterized in that, The adjustment assembly (31) includes a concave top plate (311), the bottom of which is provided with a rectangular base plate (312). Rotary rods (313) are rotatably connected to both the front and back sides of the left bottom of the concave top plate (311). A C-shaped sliding plate (316) is rotatably connected to the right bottom sides of the two rotary rods (313) that are close to each other. A rotary rod (314) is rotatably connected to the center of the side of the two rotary rods (313) that are close to each other. Rotary rod (314) is rotatably connected to the left top of the rectangular base plate (312). The concave top plate (311) is connected to the right bottom of the front and back sides by a slide rail (315). The slide rail (315) is slidably connected to the right top of the rotating rod (314). The top center of the rectangular bottom plate (312) is rotatably connected to a lead screw (317). The lead screw (317) is threadedly connected to the C-shaped slide plate (316). The center of the right side of the rectangular bottom plate (312) is equipped with a motor (318). The coupling of the left output end of the motor (318) is installed on the right outer surface of the lead screw (317). The concave curved surface at the top of the concave top plate (311) is designed to better fit the cylindrical part and prevent the cylindrical part from sliding outward from the top of the concave top plate (311). The quick-release assembly (32) includes two irregularly shaped protrusions (321), which are respectively installed on the front and back sides of the bottom of the Y-shaped plate (211). Each irregularly shaped protrusion (321) has a quick-release insert (322) inserted into one side near the center of the bottom of the rectangular base plate (312). The two quick-release inserts (322) are respectively installed at the two corners of the bottom of the rectangular base plate (312). A rectangular slot is provided at the center of the interior of each irregularly shaped protrusion (321), and a sliding plate (323) is slidably connected within the rectangular slot of the irregularly shaped protrusion (321). Two pull rods (324) are installed at the center of 23). The back of the pull rod (324) passes through the quick-release plate (322), and the front of the pull rod (324) extends outward through the irregular protrusion (321) and is slidably connected. A handle (325) is installed on the side of the two pull rods (324) away from the quick-release plate (322). A spring (326) is sleeved on the outer surface of the pull rod (324). The front of the spring (326) is installed on the inner surface of the rectangular slot of the irregular protrusion (321), and the back of the spring (326) is installed on the outer surface of the front of the slide plate (323). The quick-release assembly (32) includes two rectangular support blocks (327) and a U-shaped support plate (328). The U-shaped support plate (328) is installed on the left side of the bottom of the rectangular base plate (312). The rectangular support blocks (327) are installed on the left bottom of the irregular protrusion (321). A roller is rotatably connected to the right bottom of the irregular protrusion (321). The roller of the irregular protrusion (321) facilitates the movement of the irregular protrusion (321), thereby completing the installation and removal of the irregular protrusion (321) and the quick-release insert (322).

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