Radial multi-hole drilling assembly for pipe parts and device using the same

Abstract

The present disclosure relates to a radial multi-hole drilling assembly for pipe parts and a device applying the same. The device includes a propulsion mechanism, a rotation mechanism, a drilling mechanism, a clamping mechanism, and a support frame. The propulsion mechanism includes a housing, a hydraulic cylinder body, a hydraulic rod, a push rod, a hydraulic motor, a large bevel gear, a coupling, and a sliding tube. The rotation mechanism drives a gear to rotate through a stepping motor. There are guide grooves on the sliding tube, enabling the drilling mechanism to perform a rotational movement on the sliding tube. The drilling mechanism includes a hydraulic cylinder, an upper cover, a feed hydraulic rod, a fixed rod, a drill bit, a reset end cover, a large gear, a reset spring, a small gear, a small bevel gear, and a lower cover. The rotation of the drill bit is achieved through the rotation of the small gear and the small bevel gear. The clamping mechanism uses a planetary gear reduction structure to complete the rotation operation of the pipe parts and can achieve automated operation under the control of a single-chip microcomputer. The radial multi-hole drilling device for pipe parts given in the present disclosure has a high degree of automation and can improve the processing efficiency.

Description

Technical Field

[0001] The present disclosure relates to the field of machining, and more particularly, to a device capable of radially drilling multiple holes in pipe-like parts. Background Art

[0002] With the development of modern industry, pipe-like parts, as an important industrial tool, have been widely used. In the prior art, for the drilling of internal blind holes in pipe-like parts, a single-hole drilling method is generally used to drill holes in pipe-like parts. As shown in the content disclosed in the document of a device for machining internal blind holes in a housing, CN202220539437.2, however, such single-hole drilling devices generally have the problem of low production efficiency and have not been widely promoted and applied. Summary of the Invention

[0003] The present disclosure provides a radial multi-hole drilling assembly for pipe-like parts and a device using the same, which can solve the problems of the prior art pointed out in the background art. It is not only applicable to multi-hole drilling operations but also to single-hole drilling operations, and has the characteristics of high finished product quality and high automation degree, which can improve the processing efficiency and ensure the personal safety of operators.

[0004] A radial multi-hole drilling assembly for pipe-like parts according to the present disclosure, Basic Solution 1: The assembly includes a propulsion mechanism 1, and its unique feature lies in:

[0005] The propulsion mechanism 1 includes a housing 11, a hydraulic cylinder body 12, a hydraulic rod 13, a push rod 14, a hydraulic motor 15, a large bevel gear 16, a coupling 17, a sliding tube 18, and a bearing A19. Among them, the hydraulic cylinder body 12 is fixed inside the housing 11 by bolts, and the hydraulic rod 13 is installed inside the hydraulic cylinder body 12; the hydraulic rod 13 and the push rod 14 are connected by bolts, and round holes are machined at both the upper and lower ends of the push rod 14 and fixed to the sliding tube 18 by bolts; when the hydraulic rod 13 extends inside the hydraulic cylinder body 12, the hydraulic rod 13 drives the sliding tube 18 to move forward, realizing the telescopic function of the propulsion mechanism 1; the hydraulic motor 15 is fixed inside the sliding tube 18 by bolts, and the output end of the hydraulic motor 15 is connected to the large bevel gear 16 through the coupling 17, thereby providing a rotational torque for the large bevel gear 16; the large bevel gear 16 is fixed inside the sliding tube 18 by the bearing A19, enabling the large bevel gear 16 to rotate relative to the sliding tube 18.

[0006] On the basis of Basic Solution 1, further optimization is carried out to obtain Solution 2: The assembly further includes a rotation mechanism 2;

[0007] The rotation mechanism 2 includes a rotation motor 21, a motor support 22, a support plate 23, a gear 24, an internal gear 25, a connecting plate 26, and a sliding column 27; the rotation motor 21 is fixed to the motor support 22 by bolts, and the motor support 22 is fixed to the inside of the sliding tube 18 by bolts; the output end of the rotation motor 21 is equipped with the gear 24, and the gear 24 meshes with the internal gear 25;

[0008] The push rod 14 of the propulsion mechanism 1 is fixed to the sliding tube 18 by bolts, and the rotation mechanism 2 is axially telescoped along the circular tube 5 through the propulsion mechanism 1.

[0009] Scheme 2 is further optimized to obtain Scheme 3:

[0010] The assembly further includes a drilling mechanism 3;

[0011] The drilling mechanism 3 includes a hydraulic cylinder 31, an upper cover 32, a feed hydraulic rod 33, a fixed rod 34, a bearing B35, a drill bit 36, a reset end cover 37, a large gear 38, a reset spring 39, a small gear 310, a small bevel gear 311, a bearing C312, and a lower cover 313;

[0012] The feed hydraulic cylinder 31 is fixed to the upper cover 32 by bolts, and the feed hydraulic rod 33 is installed inside the feed hydraulic cylinder 31;

[0013] The front end of the feed hydraulic rod 33 is connected to the fixed rod 34 by bolts, so that the feed hydraulic rod 33 and the fixed rod 34 move synchronously; the feed hydraulic cylinder 33 is installed on the drill bit 36 through two bearings B35, and the upper end of the drill bit 36 is installed with a reset end cover 37 by bolts; a reset spring 39 is installed between the reset end cover 37 and the large gear 38. When the supply of hydraulic oil stops, the reset spring 39 makes the drill bit 36 return to its original position.

[0014] The small gear 310 is fixed to the small bevel gear 311 by bolts, and both sides of the small bevel gear 311 are fixed between the upper cover 32 and the lower cover 313 through two bearings C312; the small bevel gear 311 is in interference fit with the small gear 310, and the small bevel gear 311 transmits the torque to the small gear 310; splines are machined on the outside of the drill bit 36, and the feed movement of the drill bit (36) can be realized when the drill bit 36 rotates;

[0015] The support plate 23 is fixed to the drilling mechanism 3 by bolts, playing a role in fixedly supporting the drilling mechanism 3;

[0016] The internal gear 25 is connected to the drilling mechanism 3 by bolts; through the torque output by the rotation motor 21, the drilling mechanism 3 rotates relative to the sliding tube 18, which is used to realize the radial precise positioning of multiple drill bits;

[0017] The connecting plate 26 is fixed to the drilling mechanism 3 by bolts. Four sliding columns 27 are installed on the connecting plate 26. The sliding columns 27 are in contact with the guide rails machined at the front end of the sliding tube 18, providing support for the rotation of the drilling mechanism 3 relative to the sliding columns 27.

[0018] The front end of the sliding tube 18 is machined with a circular track. The drilling mechanism 3 is installed on the circular track through the sliding columns 27, and the circular track enables the drilling mechanism 3 to run along a fixed trajectory.

[0019] Scheme 4 is obtained by further optimizing Scheme 3:

[0020] The assembly further includes a clamping mechanism 4;

[0021] The clamping mechanism 4 includes a stepper motor 41, a clamping base 42, a planetoid gear 43, a key 44, a large planet gear 45, a rotating pin 46, a turntable 47, a chuck 48, and a clamping pliers 49. The stepper motor 41 is fixed to the clamping base 42 by bolts, and the output shaft of the stepper motor 41 is installed with the planetoid gear 43. A key 44 is installed between the output shaft of the stepper motor 41 and the planetoid gear 43 to transmit the output torque of the stepper motor 41 to the planetoid gear 43 through the key 44. The planetoid gear 43 meshes with three large planet gears 45, and the large planet gears 45 are connected to the turntable 47 through the rotating pins 46. The turntable 47 is connected to the chuck 48 by threads.

[0022] Another aspect of the present disclosure is to propose a radial multi-hole drilling device for pipe parts, applying the assembly described in Scheme 4, and a support frame 6;

[0023] Three clamping pliers 49 are installed on the chuck 48, and circular pipes 5 with different diameters can be clamped by manual adjustment. The support frame 6 is used to carry the assembly described in Scheme 4. The support frame is assembled by profiles for easy installation and disassembly. A guide rail groove is provided on the support frame for fixing an external mechanism.

[0024] Furthermore, the stepper motor in the clamping mechanism 4 can work under the instruction of the single-chip microcomputer control system to achieve automatic multi-hole radial drilling processing.

[0025] The method of operating the radial multi-hole drilling device for pipe parts includes the following steps:

[0026] In the first step, the circular pipes 5 with different diameters are fixed to the three-jaw chuck by manually adjusting the clamping pliers 49;

[0027] In the second step, turn on the main power supply. The hydraulic system starts, and all motors are turned on. The hydraulic system supplies oil to the hydraulic cylinder body 12, and the hydraulic oil pushes the hydraulic rod 13 to move forward, thereby driving the drilling mechanism 3 to move into the circular tube 5. When the drilling mechanism 3 reaches the designated position, the hydraulic system stops supplying oil to the hydraulic cylinder body 12, and the drilling mechanism 3 stops moving at the designated position.

[0028] In the third step, the output shaft of the rotating motor 21 rotates, drives the internal gear 25 to rotate through the gear 24, and rotates the drilling mechanism 3 to the machining position.

[0029] In the fourth step, the hydraulic system supplies oil to the hydraulic motor 15, and transmits the torque to the drilling mechanism 3 through the large bevel gear 16. Inside the drilling mechanism 3, the drill bit 36 is driven to rotate through gear transmission.

[0030] In the fifth step, the hydraulic system supplies oil to the hydraulic cylinder 31, drives the feed hydraulic rod 33 to move forward, and thus realizes the function of the drill bit 36 drilling a circular hole.

[0031] In the sixth step, repeat the second step to the fifth step until the drilling operation ends. Turn off the control system, motors, and external power supply.

[0032] One or more of the above technical solutions adopted in one or more embodiments of this specification can achieve the following beneficial effects:

[0033] First of all, the components and the multi-hole drilling device given in this disclosure are innovative as a whole. Adopting the working mode of radial multi-hole drilling, it can realize the processing of multiple radial hole positions in a tube-like part at one time, improving the processing efficiency of the inner hole of the tube-like part.

[0034] Secondly, the internal of the multi-hole drilling device given in this disclosure adopts bevel gear transmission, which can change the direction of torque transmission, enabling multiple drill bits to drill smoothly in different directions.

[0035] Thirdly, for the propulsion mechanism given in this disclosure, it is driven in a hydraulic manner, enabling the drill bit to operate smoothly and accurately position to the drilling position.

[0036] In addition, for the clamping mechanism given in this disclosure, the planetary gear reduction mechanism is used to adjust the angle of the tube-like part. During the process of machining holes, the drilling position can be adjusted at any time, improving the processing efficiency.

[0037] Furthermore, for the drilling mechanism given in this disclosure, the hydraulic drive mode is used to provide power for the feed movement of drilling. The hydraulic drive mode saves the space structure of the drilling mechanism.

[0038] In summary, the radial multi-hole drilling device for pipe parts provided by the present disclosure uses a hydraulic system as the drilling power, and can use a single-chip microcomputer control system to achieve automated multi-hole radial drilling. It is not only applicable to multi-hole drilling operations, but also applicable to single-hole drilling operations, and has the characteristics of high finished product quality and high automation degree, which can improve the processing efficiency and ensure the personal safety of operators.

[0039] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure.

[0040] Other features and aspects of the present disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to explain the technical solutions of the present disclosure.

[0042] Figure 1 It is a front view schematic diagram of the radial multi-hole drilling device for pipe parts described in the present disclosure.

[0043] Figure 2 It is a front view schematic diagram of the propulsion mechanism described in the present disclosure.

[0044] Figure 3 It is a front view schematic diagram of the rotating mechanism described in the present disclosure.

[0045] Figure 4 It is a side view schematic diagram of the rotating mechanism described in the present disclosure.

[0046] Figure 5 It is a front view schematic diagram of the drilling mechanism described in the present disclosure.

[0047] Figure 6 It is a front view schematic diagram of the clamping mechanism described in the present disclosure.

[0048] In the figure, 1 - propulsion mechanism, 2 - rotation mechanism, 3 - drilling mechanism, 4 - clamping mechanism, 5 - circular tube, 6 - support frame, 11 - housing, 12 - hydraulic cylinder body, 13 - hydraulic rod, 14 - push rod, 15 - hydraulic motor, 16 - large bevel gear, 17 - coupling, 18 - sliding tube, 19 - bearing A, 21 - rotation motor, 22 - motor support, 23 - support plate, 24 - gear, 25 - internal gear, 26 - connecting plate, 27 - sliding column, 31 - hydraulic cylinder, 32 - upper cover, 33 - feed hydraulic rod, 34 - fixed rod, 35 - bearing B, 36 - drill bit, 37 - reset end cover, 38 - large gear, 39 - reset spring, 310 - small gear, 311 - small bevel gear, 312 - bearing C, 313 - lower cover, 41 - stepper motor, 42 - clamping base, 43 - minor planet gear, 44 - key, 45 - major planet gear, 46 - rotating pin, 47 - turntable, 48 - chuck, 49 - clamping pliers. Detailed implementation manners

[0049] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0050] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0051] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present disclosure can be implemented without some specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present disclosure.

[0052] As shown by Figures 1 to 6 This radial multi - hole drilling device for pipe - type parts includes a propulsion mechanism 1, a rotation mechanism 2, a drilling mechanism 3, a clamping mechanism 4, a circular tube 5, and a support frame 6.

[0053] The described propulsion mechanism 1 includes a housing 11, a hydraulic cylinder block 12, a hydraulic rod 13, a push rod 14, a hydraulic motor 15, a large bevel gear 16, a coupling 17, a sliding tube 18, and a bearing A19. Among them, the hydraulic cylinder block 12 is fixed inside the housing 11 by bolts, and the hydraulic rod 13 is installed inside the hydraulic cylinder block 12. The hydraulic rod 13 and the push rod 14 are connected by bolts. Round holes are machined at both the upper and lower ends of the push rod 14 and fixed to the sliding tube 18 by bolts. When the hydraulic rod 13 extends inside the hydraulic cylinder block 12, the hydraulic rod 13 drives the sliding tube 18 to move forward, realizing the telescopic function of the propulsion mechanism 1. The hydraulic motor 15 is fixed inside the sliding tube 18 by bolts. The output end of the hydraulic motor 15 is connected to the large bevel gear 16 through a coupling A17, thereby providing a large rotational torque for the large bevel gear 16. The large bevel gear 16 is fixed inside the sliding tube 18 by the bearing A19, enabling the large bevel gear 16 to rotate relative to the sliding tube 18.

[0054] The described rotation mechanism 2 includes a rotation motor 21, a motor support 22, a support plate 23, a gear 24, an internal gear 25, a connecting plate 26, and a sliding column 27. Among them, the rotation motor 21 is fixed on the motor support 22 by bolts, and the motor support 22 is fixed to the inside of the sliding tube 18 by bolts. The output end of the rotation motor 21 is equipped with a gear 24, and the gear 24 meshes with the internal gear 25. The internal gear 25 is connected to the drilling mechanism 3 by bolts. Through the torque output by the rotation motor 21, the drilling mechanism 3 rotates relative to the sliding tube 18. The connecting plate 26 is fixed to the drilling mechanism 3 by bolts. Four sliding columns 27 are installed on the connecting plate 26, and the sliding columns 27 are in contact with the guide rails machined at the front end of the sliding tube 18, providing support for the rotation of the drilling mechanism 3 relative to the sliding columns 27. The support plate 23 is fixed to the drilling mechanism 3 by bolts, playing a role in fixedly supporting the drilling mechanism 3.

[0055] The described drilling mechanism 3 includes a hydraulic cylinder 31, an upper cover 32, a feed hydraulic rod 33, a fixed rod 34, a bearing B 35, a drill bit 36, a reset end cover 37, a large gear 38, a reset spring 39, a small gear 310, a small bevel gear 311, a bearing C 312, and a lower cover 313; among them, the feed hydraulic cylinder 31 is fixed to the upper cover 32 by bolts, and the feed hydraulic rod 33 is installed inside the feed hydraulic cylinder 31; the front end of the feed hydraulic rod 33 is connected to the fixed rod 34 by bolts, so that the feed hydraulic rod 33 and the fixed rod 34 move synchronously; the feed hydraulic cylinder 33 is installed on the drill bit 36 through two bearings B 35, and the upper end of the drill bit 36 is installed with a reset end cover 37 by bolts; a reset spring 39 is installed between the reset end cover 37 and the large gear 38, and when the supply of hydraulic oil stops, the reset spring 39 makes the drill bit 36 return to its original position; the small gear 310 is fixed to the small bevel gear 311 by bolts, and both sides of the small bevel gear 311 are fixed between the upper cover 32 and the lower cover 313 through two bearings C 312; the small bevel gear 311 is in interference fit with the small gear 310, and the small bevel gear 311 transmits the torque to the small gear 310; splines are machined on the outside of the drill bit 36, and when the drill bit 36 rotates, the feed movement of the drill bit 36 can be realized.

[0056] The described clamping mechanism 4 includes a stepper motor 41, a clamping base 42, a small planet gear 43, a key 44, a large planet gear 45, a rotating pin 46, a turntable 47, a chuck 48, and a clamping pliers 49; among them, the stepper motor 41 is fixed to the clamping base 42 by bolts, and the output shaft of the stepper motor 41 is installed with a small planet gear 43; a key 44 is installed between the output shaft of the stepper motor 41 and the small planet gear 43, and the output torque of the stepper motor 41 is transmitted to the small planet gear 43 through the key 44; the small planet gear 43 meshes with three large planet gears 45, and the large planet gears are connected to the turntable through rotating pins; the turntable is connected to the chuck by threads; three clamping pliers 49 are installed on the chuck, and round tubes with different diameters can be clamped by manual adjustment.

[0057] The described support frame 6 is a load-bearing device assembled by formed materials, which is easy to process and disassemble; there are guide grooves on the support frame, which are convenient for fixing external devices, with high reliability and strong flexibility.

[0058] During use, the following steps are performed:

[0059] 1. Manually adjust the clamping pliers 49 to fix round tubes 5 with different diameters to the three-jaw chuck.

[0060] 2. Turn on the main power supply, start the hydraulic system, and turn on each motor. The hydraulic system supplies oil to the hydraulic cylinder body 12, and the hydraulic oil pushes the hydraulic rod 13 to move forward, thereby driving the drilling mechanism 3 to move into the round tube 5. When the drilling mechanism 3 reaches the specified position, the hydraulic system stops supplying oil to the hydraulic cylinder body 12, and the drilling mechanism 3 stops moving at the specified position.

[0061] 3. The output shaft of the rotary electric machine 21 rotates, drives the internal gear 25 to rotate through the gear 24, and rotates the drilling mechanism 3 to the machining position.

[0062] 4. The hydraulic system supplies oil to the hydraulic motor 15, and transmits the torque to the drilling mechanism 3 through the large bevel gear 16. Inside the drilling mechanism 3, the drill bit 36 is driven to rotate through gear transmission.

[0063] 5. The hydraulic system supplies oil to the hydraulic cylinder 31, drives the feed hydraulic rod 33 to move forward, and further realizes the function of the drill bit 36 to drill a round hole.

[0064] 6. Repeat steps 2-5 until the drilling operation is completed. Shut down the control system, the motor, and the external power supply, etc., and clean, package, and store the device.

[0065] The embodiments described above are exemplary, not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments.

Claims

1. A radial multi-hole drilling assembly for pipe parts, comprising a propulsion mechanism (1), characterized in that: The assembly further includes a rotating mechanism (2) and a drilling mechanism (3); The propulsion mechanism (1) includes a housing (11), a hydraulic cylinder block (12), a hydraulic rod (13), a push rod (14), a hydraulic motor (15), a large bevel gear (16), a coupling (17), a sliding tube (18), and a bearing A (19); wherein, the hydraulic cylinder block (12) is fixed inside the housing (11) by bolts, and the hydraulic rod (13) is installed inside the hydraulic cylinder block (12); the hydraulic rod (13) is connected to the push rod (14) by bolts, and circular holes are machined at both the upper and lower ends of the push rod (14) and fixed to the sliding tube (18) by bolts; when the hydraulic rod (13) extends inside the hydraulic cylinder block (12), the hydraulic rod (13) drives the sliding tube (18) to move forward, realizing the telescopic function of the propulsion mechanism (1); the hydraulic motor (15) is fixed inside the sliding tube (18) by bolts, and the output end of the hydraulic motor (15) is connected to the large bevel gear (16) through the coupling (17), thereby providing a rotational torque for the large bevel gear (16); the large bevel gear (16) is fixed inside the sliding tube (18) by the bearing A (19), enabling the large bevel gear (16) to rotate relative to the sliding tube (18); The rotating mechanism (2) includes a rotating motor (21), a motor support (22), a support plate (23), a gear (24), an internal gear (25), a connecting plate (26), and a sliding column (27); the rotating motor (21) is fixed on the motor support (22) by bolts, and the motor support (22) is fixed inside the sliding tube (18) by bolts; the output end of the rotating motor (21) is equipped with the gear (24), and the gear (24) meshes with the internal gear (25); The push rod (14) of the propulsion mechanism (1) is fixed to the sliding tube (18) by bolts, and the rotating mechanism (2) is telescoped along the axial direction of the circular tube (5) through the propulsion mechanism (1); The drilling mechanism (3) includes a feed hydraulic cylinder (31), an upper cover (32), a feed hydraulic rod (33), a fixed rod (34), a bearing B (35), a drill bit (36), a reset end cover (37), a large gear (38), a reset spring (39), a small gear (310), a small bevel gear (311), a bearing C (312), and a lower cover (313); The feed hydraulic cylinder (31) is fixed to the upper cover (32) by bolts, and the feed hydraulic rod (33) is installed inside the feed hydraulic cylinder (31); The front end of the feed hydraulic rod (33) is connected to the fixed rod (34) by bolts, enabling the feed hydraulic rod (33) and the fixed rod (34) to move synchronously; the fixed rod (34) is installed on the drill bit (36) through two bearings B (35), and a reset end cover (37) is installed at the upper end of the drill bit (36) by bolts; a reset spring (39) is installed between the reset end cover (37) and the large gear (38), and when the supply of hydraulic oil stops, the reset spring (39) causes the drill bit (36) to return to its original position; The pinion gear (310) is fixed to the bevel pinion gear (311) by bolts. The two sides of the bevel pinion gear (311) are fixed between the upper cover (32) and the lower cover (313) by two bearings C (312); The bevel pinion gear (311) is in interference fit with the pinion gear (310), and the bevel pinion gear (311) transmits torque to the pinion gear (310); The drill bit (36) is externally processed with splines, and the feeding movement of the drill bit (36) can be realized when the drill bit (36) rotates. The support plate (23) is fixed to the drilling mechanism (3) by bolts, playing a role in fixedly supporting the drilling mechanism (3). The internal gear (25) is connected to the drilling mechanism (3) by bolts; By the torque output by the rotating motor (21), the drilling mechanism (3) rotates relative to the sliding pipe (18) to achieve precise radial positioning of multiple drill bits. The connecting plate (26) is fixed to the drilling mechanism (3) by bolts. Four sliding columns (27) are installed on the connecting plate (26). The sliding columns (27) are in contact with the guide rails processed at the front end of the sliding pipe (18), providing support for the rotation of the drilling mechanism (3) relative to the sliding columns (27). The large bevel gear (16) meshes with the small bevel gear (311).

2. A radial multi-hole drilling assembly for pipe parts according to claim 1, characterized in that: The assembly further includes a clamping mechanism (4); The clamping mechanism (4) includes a stepping motor (41), a clamping base (42), an asteroid gear (43), a key (44), a large planet gear (45), a rotating pin (46), a turntable (47), a chuck (48) and a clamping pliers (49); The stepping motor (41) is fixed to the clamping base (42) by bolts, and the output shaft of the stepping motor (41) is installed with an asteroid gear (43); A key (44) is installed between the output shaft of the stepping motor (41) and the asteroid gear (43), and the output torque of the stepping motor (41) is transmitted to the asteroid gear (43) through the key (44); The asteroid gear (43) meshes with three large planet gears (45), and the large planet gears (45) are connected to the turntable (47) by rotating pins (46); The turntable (47) is connected to the chuck (48) by threads.

3. A radial multi-hole drilling device for pipe parts, characterized in that: Including the assembly described in claim 2, and a support frame (6); Three clamping pliers (49) are installed on the chuck (48), and round pipes (5) with different diameters can be clamped by manual adjustment; The support frame (6) is used to carry the assembly described in claim 2, and the support frame is spliced by profiles; Guide grooves are provided on the support frame for fixing external mechanisms.

4. A radial multi-hole drilling device for pipe parts according to claim 3, characterized in that, The stepping motor in the clamping mechanism (4) can work under the instruction of the single-chip microcomputer control system to realize automatic multi-hole radial drilling processing.

5. A method for operating the radial multi-hole drilling device for pipe parts described in claim 4, including the following steps: The first step is to fix round pipes (5) with different diameters to the three-jaw chuck by manually adjusting the clamping pliers (49). In the second step, turn on the main power supply, start the hydraulic system, and turn on each motor; the hydraulic system supplies oil into the hydraulic cylinder body (12), and the hydraulic oil pushes the hydraulic rod (13) to move forward, thereby driving the drilling mechanism (3) to move into the circular tube (5); when the drilling mechanism (3) reaches the designated position, the hydraulic system stops supplying oil into the hydraulic cylinder body (12), and the drilling mechanism (3) stops moving at the designated position; In the third step, the output shaft of the rotary motor (21) rotates, drives the internal gear (25) to rotate through the gear (24), and rotates the drilling mechanism (3) to the machining position; In the fourth step, the hydraulic system supplies oil into the hydraulic motor (15), and transmits the torque to the drilling mechanism (3) through the large bevel gear (16); inside the drilling mechanism (3), the drill bit (36) is driven to rotate through gear transmission; In the fifth step, the hydraulic system supplies oil into the feed hydraulic cylinder (31), drives the feed hydraulic rod (33) to move forward, and thereby realizes the function of the drill bit (36) to drill a round hole; In the sixth step, repeat the second to fifth steps until the drilling operation is completed; turn off the control system, motors, and external power supply.

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