Modular fast positioning drilling device for electric h-shaped steel column

Abstract

The application discloses a kind of modularization quick positioning drilling device for electric power H-shaped steel column, including positioning template, upper pressing plate, lower corner brace seat, drilling mechanism and feed mechanism;Positioning template is buckled on H-shaped steel column opening face by positioning groove, and is fixed with clamping mechanism;Upper pressing plate is quickly positioned above template by the cooperation of guide cone column and guide round hole;Lower corner brace seat is rotatably arranged at the extension end of electric push rod of upper pressing plate, and after being rotated to below opening face, it is clamped with upper pressing plate to template and opening face;Drilling mechanism is arranged above upper pressing plate, and the distribution of its drill bit is matched with opening position;Feed mechanism drives drilling mechanism to realize drilling by lifting.This application positions all hole positions by template at one time, realizes quick assembly by cooperating with taper face guide, and converts drilling reaction force into internal force of device by clamping mode, with the characteristics of high positioning efficiency, good precision and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of power steel structure processing equipment technology, and more specifically, to a modular rapid positioning drilling device for power H-shaped steel columns. Background Technology

[0002] During the fabrication of H-beam steel columns for power transmission, several bolt holes need to be drilled on the open surface of the steel column according to design requirements for subsequent installation of electrical equipment such as crossarms and fittings.

[0003] Traditional drilling positioning methods rely primarily on manual measurement and marking on steel columns to determine the center position of each hole before drilling. This method is not only inefficient, but also suffers from inconsistent hole positioning accuracy due to human factors, making it unsuitable for mass production. Although some drilling devices using drill templates for positioning exist, these devices typically only allow drilling on one side of H-beams, and the positioning and clamping processes are cumbersome, hindering rapid and precise on-site operations.

[0004] Therefore, there is an urgent need for a device that can quickly position, clamp, and efficiently drill H-shaped steel columns. Summary of the Invention

[0005] To address the above shortcomings, this invention provides a modular rapid positioning drilling device for H-shaped steel columns used in power plants, thereby solving the technical problems of low efficiency and difficulty in guaranteeing accuracy when drilling H-shaped steel columns in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a modular rapid positioning drilling device for H-shaped steel columns used in power transmission projects, comprising: The positioning template has a positioning groove on its lower surface that matches the width of the opening surface of the H-shaped steel column for power transmission. A clamping mechanism is provided on it, and it is detachably fastened and fixed to the opening surface of the H-shaped steel column for power transmission through the positioning groove and the clamping mechanism. It has a number of positioning holes and a number of guide positioning parts, and the position of the positioning holes corresponds to the position of the opening on the H-shaped steel column for power transmission. The upper pressure plate is set above the positioning template. It has several clearance slots corresponding to the positions of the positioning holes. It has a mating part that cooperates with the guide positioning part. Electric push rods are set on both sides of its upper surface along the length direction. The telescopic end of the electric push rods extends downward through the upper pressure plate. The lower corner support is rotatably mounted on the telescopic end of the electric push rod, and is used to rotate to both sides below the opening surface of the electric H-shaped steel column, and cooperate with the upper pressure plate to clamp the opening surface of the electric H-shaped steel column and the positioning template. A drilling mechanism is located above the upper pressure plate and is used to drive several drill bits to rotate and drill holes in the opening surface of the power H-shaped steel column. The feeding mechanism is located between the drilling mechanism and the upper pressure plate. It is used to drive the drilling mechanism to move closer to or away from the upper pressure plate so that the drill bit passes through the clearance slot and the positioning hole to drill a hole in the opening surface of the power H-shaped steel column.

[0007] The positioning groove on the positioning template enables quick engagement and positioning with the opening surface of the H-shaped steel column. Then, the clamping mechanism fixes the template to the opening surface, simplifying the complex process of aligning the holes one by one on site into a one-time positioning of the template, which greatly improves the drilling positioning efficiency.

[0008] The automatic guiding and positioning mechanism enables the upper pressure plate to quickly and accurately align with the template, reducing the difficulty of hoisting and alignment. The clamping action between the upper pressure plate and the lower corner support solidifies the drilling mechanism, upper pressure plate, positioning template, and H-shaped steel column into a rigid whole, transforming the force generated during drilling into the internal force of the device. This effectively avoids the impact of drilling vibration on positioning accuracy and ensures drilling quality. At the same time, the distribution of each drill bit matches the opening position on the opening surface of the H-shaped steel column, enabling the drilling of multiple holes at once, further improving the overall efficiency of drilling operations.

[0009] Furthermore, the clamping mechanism includes: Bolt holes are provided at the four corners of both ends of the positioning template and are located on both sides of the positioning groove; Locking pressure plates are set at the four corners below the positioning template to fit the lower surface of the opening surface of the power H-shaped steel column; A locking bolt is installed on the locking pressure plate, passing through the bolt hole and fitted with a nut; After the nut is tightened, the locking plate and the positioning template are clamped and fixed on both sides of the opening surface of the power H-shaped steel column.

[0010] The clamping method using bolts, nuts, and locking plates is simple, reliable, and easy to operate, enabling quick on-site template fixing. The bolt holes are located on both sides of the positioning groove, ensuring that the clamping force is evenly distributed at both ends of the template and preventing displacement during drilling.

[0011] Furthermore, the guiding and positioning part is a guide cone, and the mating part is a guide hole; The guide cones are vertically arranged on the upper surface of the positioning template and are distributed in an array; The guide circular hole is opened on the upper pressure plate and is located in the outer area of ​​the clearance through groove, and corresponds one-to-one with the position of the guide cone column; The upper pressure plate is inserted into the guide hole through the guide cone to achieve positioning and engagement with the positioning template, so that the drill bit of the drilling mechanism can be quickly aligned with each positioning hole.

[0012] The upper end of the guide cone is conical. When the upper pressure plate is hoisted and lowered, the conical surface can automatically guide the position of the upper pressure plate. Even if there is a certain deviation in the initial hoisting position, the upper pressure plate can be accurately placed into the predetermined position through the guiding effect of the conical surface. This achieves two-stage positioning of "coarse positioning → fine guidance", which reduces the requirements for hoisting accuracy. At the same time, the automatic guiding effect of the conical surface simplifies the alignment operation. It can be in place in one go without repeated adjustments, which greatly improves the alignment efficiency.

[0013] Furthermore, the drilling mechanism includes: A transmission box is located above the upper pressure plate, and its lower surface is provided with several output shafts; A drive motor is mounted on the transmission box and is connected to the output end of the transmission box in a transmission connection. A drill chuck is mounted on the output shaft, and a drill bit is mounted on it. The distribution of each drill bit matches the opening position on the opening surface of the power H-beam steel column.

[0014] By distributing the power of a single drive motor to multiple output shafts through a transmission box, multiple drill bits can rotate simultaneously, enabling the drilling of all preset holes on the opening surface of an H-shaped steel column in one go, which greatly improves drilling efficiency.

[0015] The distribution of each drill bit is matched with the hole position, and all holes can be machined in one clamping. There is no need to frequently adjust the drill bit position for alignment during the drilling process, which further shortens the processing cycle and reduces the difficulty of operation.

[0016] Furthermore, the upper surface of the transmission box is provided with lifting lugs at both ends. The two lifting lugs are respectively connected to a hand chain hoist, and the angle of the upper pressure plate is matched with the angle of the positioning template and the opening surface of the power H-shaped steel column through the coordinated adjustment of the two hand chain hoists.

[0017] After the two lifting lugs are connected to the chain hoists, the operator can adjust the tightness of the chain hoists on both sides to precisely control the pitch angle of the entire device in the air. This is to accommodate the non-horizontal placement caused by the flange at one end of the H-shaped steel column, ensuring that the upper pressure plate can be placed on the template in the correct posture.

[0018] Furthermore, the feeding mechanism is an electric push rod II, which is located at the four corners of both ends of the transmission box, with its telescopic end extending downward and fixedly connected to both ends of the upper pressure plate.

[0019] The electric push rods are located at the four corners of both ends of the transmission box, which can provide uniform feed force at the four corners of the drilling mechanism at the same time. This avoids the transmission box tilting or jamming due to unilateral force, ensuring a smooth drilling feed process and guaranteeing the verticality of the drilling.

[0020] Furthermore, the positioning method of the positioning template is as follows: Based on the pre-set opening positions on the power H-beam column and the distance from the center of the positioning hole to the end face of the positioning template, the distance between the end face of the positioning template and the end face of the power H-beam column is calculated. Based on the calculated distance, mark the positioning lines on both ends of the positioning template on the opening surface of the power H-shaped steel column; Then the positioning template can be quickly fastened onto the opening surface of the power H-shaped steel column, so that the two ends of the positioning template are aligned with the positioning line.

[0021] By transforming the complex problem of "aligning each hole individually" into a simple "aligning template ends", the precise positioning of all holes can be completed on-site by simply measuring and marking two positioning lines and then snapping the templates together. This significantly reduces the skill requirements and time costs of on-site operations. Furthermore, the precision of all holes is guaranteed by the manufacturing precision of the templates, avoiding human error.

[0022] Furthermore, the length of the positioning template is greater than the length of the upper pressure plate, and the bolts and nuts are installed on the positioning template at the outer ends of the upper pressure plate to avoid the bolts and nuts interfering with the fit between the upper pressure plate and the positioning template.

[0023] By limiting the length of the positioning template to be greater than the length of the upper pressure plate, the bolts and nuts of the clamping mechanism are located on the outer sides of both ends of the upper pressure plate, ensuring that the upper pressure plate can fully fit with the positioning template and avoiding inaccurate positioning caused by fastener interference. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the modular rapid positioning drilling device for H-shaped steel columns for power transmission, as described in this invention. Figure 2 yes Figure 1 A side view diagram; Figure 3 This is a top view of the upper pressure plate; Figure 4 yes Figure 3 Schematic sectional view along the middle AA direction; Figure 5 yes Figure 3 A schematic diagram of the cross-section along the middle BB direction; Figure 6 This is a top view of the positioning template; Figure 7 This is a side sectional view of the positioning template; In the diagram: 1. Drilling mechanism; 11. Transmission box; 12. Drive motor; 13. Output shaft; 14. Drill chuck; 15. Drill bit; 16. Lifting lug; 2. Feed mechanism; 21. Electric push rod II; 3. Upper pressure plate; 31. Clearance slot; 32. Guide hole; 33. Electric push rod I; 4. Lower corner support; 5. Positioning template; 51. Positioning groove; 52. Positioning hole; 53. Guide cone; 54. Locking pressure plate; 55. Locking bolt; 56. Nut. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-7 The present invention provides a modular rapid positioning drilling device for H-shaped steel columns for power transmission, including a drilling mechanism 1, a feeding mechanism 2, an upper pressure plate 3, a lower corner support 4, and a positioning template 5.

[0027] The positioning template 5 is made of metal material (such as Q235 steel plate) with a thickness of 10mm to 20mm. The specific thickness is determined according to the specifications of the H-shaped steel column being processed and the number of holes to ensure that the template has sufficient rigidity and does not deform during the drilling process.

[0028] The lower surface of the positioning template 5 is provided with a positioning groove 51. The width of the positioning groove 51 matches the width of the opening surface of the power H-shaped steel column, so that the positioning template 5 can be quickly fastened to the opening surface of the H-shaped steel column through the positioning groove 51. After fastening, the positioning template 5 is limited in the width direction of the opening surface and cannot produce relative shaking, ensuring the precise correspondence between the positioning hole 52 and the opening position.

[0029] In this embodiment, the installation method of the positioning template 5 is as follows: During operation, the distance between the end face of the positioning template 5 and the end face of the power H-beam steel column is calculated based on the preset opening position on the power H-beam steel column and the distance from the center of the positioning hole 52 to the end face of the positioning template 5. Based on the calculated distance and the length of the positioning template 5 itself, mark the positioning lines on both ends of the positioning template 5 on the opening surface of the power H-shaped steel column; The positioning groove 51 of the positioning template 5 is fastened to the opening surface of the power H-shaped steel column, so that the two ends of the positioning template 5 are aligned with the positioning line, thereby quickly installing the positioning template 5 and quickly positioning each drilling position.

[0030] The positioning template 5 is also equipped with a clamping mechanism for clamping and fixing the positioning template 5 to the opening surface. The clamping mechanism includes: bolt holes at the four corners at both ends of the positioning template 5, the bolt holes being located on both sides of the positioning groove 51; locking pressure plates 54 located at the four corners below the positioning template 5, the locking pressure plates 54 being attached to the lower surface of the opening surface of the power H-shaped steel column; and locking bolts 55 installed on the locking pressure plates 54, the locking bolts 55 passing through the bolt holes and being fitted with nuts 56.

[0031] When nut 56 is tightened, locking plate 54 and positioning template 5 are clamped together on both sides of the opening surface of the power H-shaped steel column, fixing positioning template 5 on the opening surface. This ensures that when the upper pressure plate 3 and positioning template 5 are guided and assembled, the positioning template 5 will not be relatively displaced between the opening surfaces, thereby ensuring the positional accuracy of each positioning hole 52.

[0032] The positioning template 5 is also provided with several positioning holes 52 and several guide positioning parts. The positioning holes 52 are arranged in an array on the positioning template 5, and their distribution positions correspond one-to-one with the opening positions arranged in an array on the power H-beam steel column. The guide positioning parts are guide cones 53, which are vertically arranged on the upper surface of the positioning template 5 and arranged in an array on the positioning template 5. The upper end of the guide cone 53 is tapered to provide automatic alignment during mating.

[0033] The upper pressure plate 3 is positioned above the positioning template 5 and is made of metal (such as Q235 steel plate) with a thickness of 10mm to 15mm. The upper pressure plate 3 has several clearance slots 31, the positions of which correspond one-to-one with the positions of the positioning holes 52. The size of the clearance slots 31 is larger than the diameter of the drill bit 15, allowing the drill bit 15 to pass through freely. The clearance slots 31 also facilitate the operator's observation of the cutting status and drill bit condition during the drilling process, as well as the timely addition of cutting fluid to the drilling location.

[0034] The upper pressure plate 3 is also provided with a mating part that cooperates with the guide cone 53, which is a guide circular hole 32. The guide circular hole 32 is opened on the upper pressure plate 3, located in the outer area of ​​the clearance groove 31, and corresponds one-to-one with the position of the guide cone 53. The diameter of the guide circular hole 32 matches the maximum outer diameter of the guide cone 53. The upper pressure plate 3 is inserted into the guide circular hole 32 through the guide cone 53 to achieve positioning and mating with the positioning template 5.

[0035] In use, when the upper pressure plate 3 approaches the positioning template 5 from top to bottom, the conical surface at the upper end of the guide cone 53 first enters the guide hole 32. By inserting the upper end of the guide cone 53 into the guide hole 32, the position of the upper pressure plate 3 is roughly positioned. Then, as the upper pressure plate 3 continues to fall, the conical surface makes sliding contact with the hole wall of the guide hole 32. The tilt angle of the conical surface gradually eliminates the positional error of the upper pressure plate 3, guiding the guide hole 32 to accurately fit into the guide cone 53. Finally, the upper pressure plate 3 is accurately positioned above the positioning template 5, realizing the positioning cooperation between the two. This ensures the precise alignment of each drill bit 15 with the drilling position, so that it can accurately pass through the corresponding clearance slot 31 and positioning hole 52 to perform drilling work at the preset drilling position.

[0036] Electric push rods 33 are provided on both sides of the upper surface of the upper pressure plate 3. The telescopic ends of the electric push rods 33 extend downward through the upper pressure plate 3. The number of electric push rods 33 is preferably 4-6, which are respectively provided on both sides of the upper surface of the upper pressure plate 3 and are evenly distributed along the length of the upper pressure plate to ensure uniform distribution of clamping force.

[0037] The lower corner support 4 is rotatably mounted on the telescopic end of the electric push rod 33 through the mounting hole. Specifically, the lower end of the telescopic end of the electric push rod 33 passes through the mounting hole on the lower corner support 4, and the end of the telescopic end is provided with a limiting block. The outer diameter of the limiting block is larger than the diameter of the mounting hole to prevent the lower corner support 4 from coming off the telescopic end.

[0038] The lower corner support 4 has an extended position and a retracted position: in the retracted position, the lower corner support 4 avoids the opening surface of the power H-shaped steel column; in the extended position, the lower corner support 4 rotates to both sides below the opening surface of the power H-shaped steel column.

[0039] In use, manually adjust the lower corner support 4 to the retracted position. After the upper pressure plate 3 is positioned above the positioning template 5, manually adjust the lower corner support 4 from the retracted position to the extended position. At this time, the lower corner support 4 rotates below the opening surface of the power H-beam column. Then, control the extension end of the electric push rod 33 to retract, and the limit block pushes the lower corner support 4 upward, so that the upper pressure plate 3 and the lower corner support 4 together clamp the opening surface of the power H-beam column and the positioning template 5.

[0040] Preferably, a damping pad is provided in the mounting hole of the lower corner support 4. The damping pad is fitted onto the telescopic end of the electric push rod 33 to increase the damping when the lower corner support 4 rotates, and to prevent the lower corner support 4 from rotating accidentally due to force during the clamping process, which would result in incomplete clamping.

[0041] The drilling mechanism 1 is located above the upper pressure plate 3 and includes a transmission box 11 and a drive motor 12.

[0042] A transmission box 11 is positioned above the upper pressure plate 3, and its lower surface is provided with several output shafts 13. A drive motor 12 is mounted on the transmission box 11 and is connected to the output end of the transmission box 11 for transmission. A drill chuck 14 is mounted on the output shaft 13, and a drill bit 15 is mounted on the drill chuck 14. The distribution of each drill bit 15 matches the opening position on the opening surface of the power H-beam steel column.

[0043] In this embodiment, the upper surface of the transmission box 11 is provided with lifting lugs 16 at both ends, and the two lifting lugs 16 are respectively connected to a hand chain hoist. The upper end of the hand chain hoist can be fixed on the hoisting bracket or the overhead crane hook. Through the coordinated adjustment of the two hand chain hoists, the aerial posture of the upper pressure plate 3 and the drilling mechanism 1 installed on it can be precisely controlled.

[0044] In use, two hand-operated hoists can be suspended from the hooks of the hoisting bracket or overhead crane. The hoists are then connected to the two lifting lugs respectively. The hoisting bracket or overhead crane is then used to move the device above the opening surface of the H-beam power column. At this point, based on the angle of the opening surface of the H-beam power column, the posture of the upper pressure plate 3 is adjusted by operating the two hand-operated hoists, so that the posture of the upper pressure plate 3 is close to the posture of the opening surface of the H-beam power column and the positioning template 5.

[0045] Then, by simultaneously operating two hand chain hoists or using an overhead crane to control the lifting, the drilling mechanism 1 and the upper pressure plate 3 are lowered as a whole, thereby ensuring that the upper pressure plate 3 is lowered above the positioning template 5 and that the guide cone 53 is inserted into the corresponding guide hole 32; continue to lower, so that the lower pressure plate 3 is fully in contact with the positioning template 5, and ensure that the lifting chain of the hand chain hoist is in a slack state (leaving sufficient feed to ensure the smooth progress of drilling), so that the device can be quickly assembled on the opening surface of the power H-shaped steel column.

[0046] The feed mechanism 2 is located between the drilling mechanism 1 and the upper pressure plate 3, and is used to drive the drilling mechanism 1 to move closer to or away from the upper pressure plate 3. The feed mechanism 2 is an electric push rod 21, which is located at the four corners of both ends of the transmission box 11. Its telescopic end extends downward and is fixedly connected to both ends of the upper pressure plate 3.

[0047] As a preferred embodiment, a linear guide pair (not shown in the figure) is also provided between the upper pressure plate 3 and the drilling mechanism 1. The guide rails of the linear guide pair are vertically set on both ends of the transmission box 11, and the sliders of the linear guide pair are fixed to both ends of the upper surface of the upper pressure plate 3 to guide the lifting and lowering movement of the drilling mechanism 1 and ensure the directionality and verticality of the drilling feed.

[0048] Drilling operation method: Start the drive motor 12. The drive motor 12 drives each output shaft 13 to rotate synchronously through the transmission box 11, which in turn drives each drill bit 15 to rotate. Control the extension end of the electric push rod 21 to extend, push the transmission box 11 to move downward as a whole. The rotating drill bit 15 passes through the clearance slot 31 of the upper pressure plate 3 and the positioning hole 52 of the positioning template 5 to drill the opening surface of the power H-shaped steel column.

[0049] In addition, the length of the positioning template 5 is greater than the length of the upper pressure plate 3, and the locking bolts 55 and nuts 56 are installed on the positioning template 5 at the outer ends of the upper pressure plate 3 to avoid the locking bolts 55 and nuts 56 interfering with the fit between the upper pressure plate 3 and the positioning template 5.

Claims

1. A modular rapid positioning drilling device for H-shaped steel columns used in power plants, characterized in that, include: The positioning template has a positioning groove on its lower surface that matches the width of the opening surface of the H-shaped steel column for power transmission. A clamping mechanism is provided on it, and it is detachably fastened and fixed to the opening surface of the H-shaped steel column for power transmission through the positioning groove and the clamping mechanism. It has a number of positioning holes and a number of guide positioning parts, and the position of the positioning holes corresponds to the position of the opening on the H-shaped steel column for power transmission. The upper pressure plate is set above the positioning template. It has several clearance slots corresponding to the positions of the positioning holes. It has a mating part that cooperates with the guide positioning part. Electric push rods are set on both sides of its upper surface along the length direction. The telescopic end of the electric push rods extends downward through the upper pressure plate. The lower corner support is rotatably mounted on the telescopic end of the electric push rod, and is used to rotate to both sides below the opening surface of the electric H-shaped steel column, and cooperate with the upper pressure plate to clamp the opening surface of the electric H-shaped steel column and the positioning template. A drilling mechanism is located above the upper pressure plate and is used to drive several drill bits to rotate and drill holes in the opening surface of the power H-shaped steel column. The feeding mechanism is located between the drilling mechanism and the upper pressure plate. It is used to drive the drilling mechanism to move closer to or away from the upper pressure plate so that the drill bit passes through the clearance slot and the positioning hole to drill a hole in the opening surface of the power H-shaped steel column.

2. The modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 1, characterized in that, The clamping mechanism includes: Bolt holes are provided at the four corners of both ends of the positioning template and are located on both sides of the positioning groove; Locking pressure plates are set at the four corners below the positioning template to fit the lower surface of the opening surface of the power H-shaped steel column; A locking bolt is installed on the locking pressure plate, passing through the bolt hole and fitted with a nut; After the nut is tightened, the locking plate and the positioning template are clamped and fixed on both sides of the opening surface of the power H-shaped steel column.

3. The modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 1, characterized in that, The guiding and positioning part is a guide cone, and the mating part is a guide hole; The guide cones are vertically arranged on the upper surface of the positioning template and are distributed in an array; The guide circular hole is opened on the upper pressure plate and is located in the outer area of ​​the clearance through groove, and corresponds one-to-one with the position of the guide cone column; The upper pressure plate is inserted into the guide hole through the guide cone to achieve positioning and engagement with the positioning template, so that the drill bit of the drilling mechanism can be quickly aligned with each positioning hole.

4. A modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 1, characterized in that, The drilling mechanism includes: A transmission box is located above the upper pressure plate, and its lower surface is provided with several output shafts; A drive motor is mounted on the transmission box and is connected to the output end of the transmission box in a transmission connection. A drill chuck is mounted on the output shaft, and a drill bit is mounted on it. The distribution of each drill bit matches the opening position on the opening surface of the power H-beam steel column.

5. A modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 4, characterized in that, The upper surface of the transmission box is provided with lifting lugs at both ends. The two lifting lugs are respectively connected to a hand chain hoist. Through the coordinated adjustment of the two hand chain hoists, the angle of the upper pressure plate is matched with the angle of the positioning template and the opening surface of the power H-shaped steel column.

6. A modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 4, characterized in that, The feeding mechanism is an electric push rod II, which is located at the four corners of both ends of the transmission box. Its telescopic end extends downward and is fixedly connected to both ends of the upper pressure plate.

7. A modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 1, characterized in that, The positioning method of the positioning template is as follows: Based on the pre-set opening positions on the power H-beam column and the distance from the center of the positioning hole to the end face of the positioning template, the distance between the end face of the positioning template and the end face of the power H-beam column is calculated. Based on the calculated distance, mark the positioning lines on both ends of the positioning template on the opening surface of the power H-shaped steel column; Then the positioning template can be quickly fastened onto the opening surface of the power H-shaped steel column, so that the two ends of the positioning template are aligned with the positioning line.

8. A modular rapid positioning drilling device for H-shaped steel columns in power plants according to claim 1, characterized in that, The length of the positioning template is greater than the length of the upper pressure plate. The bolts and nuts are installed on the positioning template at the outer ends of the upper pressure plate to avoid interference between the bolts and nuts and the fit between the upper pressure plate and the positioning template.

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