Drilling device for steel structural part machining and method thereof

Abstract

The invention relates to the technical field of steel structure production, in particular to a drilling device for steel structure part machining and a method thereof.The drilling device comprises a workbench, a limiting plate fixedly connected to the workbench and a first linear driver fixedly connected to the limiting plate; the first linear driver is used for driving the first contact plate to be slidably connected with the top of the workbench. The other end, away from the first contact plate, of the workbench is fixedly connected with the first connecting plate. The structures of a second contact plate and a third contact plate are matched with the structure of the joint of an H-shaped steel web and a flange, an L-shaped frame rotates through a stepping motor to form a concave structure, a to-be-punched flange is wrapped, a first electromagnetic spring is matched to drive a force application plate to conduct extrusion, stable supporting of the upper end and the lower end of the flange is achieved, and H-shaped steel is prevented from moving or deforming during punching; and the third contact plate and the second contact plate drive the second polishing assembly to move in the H-shaped steel through rollers at the tops, so that the machining position is rapidly adjusted, and the inner side and the top of the H-shaped structure are detected at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure production, in particular to a drilling device for steel structure machining and a method thereof. BACKGROUND

[0002] The patent with publication (announcement) number CN118385639B discloses a drilling device for steel structure machining. The present application provides a drilling device for steel structure machining with automatic adjustment of drill bit feed amount. The drilling device for steel structure machining comprises a base, a machine body, a drilling machine, a liquid tank and the like. The machine body is connected to the base. The liquid tank is connected to the machine body through a pipeline. The drilling machine is slidingly connected to the machine body. The drilling device further comprises a rotating rod, a transmission assembly, a rotating shaft and a variable speed shaft.

[0003] In the prior art, during the process of moving the drilling machine close to the surface of the steel structure by rotating the rotating rod, the moving speed of the drilling machine changes from fast to slow. The feed amount of the drilling machine changes from large to small. The workers have sufficient time to accurately align the drilling machine with the drilling position, thereby improving the drilling precision. When the device drills the H-shaped steel, the upper and lower flanges of the H-shaped steel are connected through the web, and the outer edges of the two flanges are in a hollow state. When drilling the flanges, the drill bit exerts force on the surface of the flanges, which easily causes the flanges to bend and deform.

[0004] Therefore, a drilling device for steel structure machining and a method thereof are proposed to solve the problems in the prior art. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a workbench, a limiting plate fixedly connected to the workbench, a first linear actuator fixedly connected to the limiting plate, The first linear actuator is used to drive the first contact plate to slide with the top of the workbench. The other end of the workbench away from the first contact plate is fixedly connected with the first connecting plate; The workbench is provided with a first polishing assembly and a second polishing assembly; The first polishing assembly and the second polishing assembly are the same in structure; The second polishing assembly comprises a second contact plate, and the second contact plate and the third contact plate are both connected with a contact assembly; A first driving motor is bolted to the top of the second contact plate. The output shaft of the first driving motor is fixedly connected with a worm on a worm and gear assembly; The worm center of the worm and gear assembly is fixedly connected with a bevel gear set; Another bevel gear on the bevel gear set is fixedly connected with a lead screw, which is threadedly connected with a driving plate; The top of the driving plate is fixedly connected with the bottom of a matching assembly; The matching assembly comprises a third contact plate, and the bottom of the third contact plate is fixedly connected with the driving plate; A stepper motor is arranged on the third contact plate, and an output shaft of the stepper motor drives the L-shaped frame to be rotationally connected with the top of the third contact plate; First electromagnetic springs are fixedly connected with the four corners of the bottom of the L-shaped frame, and force plates are fixedly connected with the bottom of the first electromagnetic springs.

[0006] In a possible implementation manner, the force plate is rotationally connected with a driving grinding ring, and the driving grinding ring is provided with a connecting hole in the center; The force plate is fixedly connected with a monitoring assembly, and the bottom of the third contact plate is screw-connected with a connecting motor; An inner plate is fixedly connected in the third contact plate, the top of the inner plate is embedded with a circular truncated cone groove, and the top of the third contact plate is embedded with a rubber ring.

[0007] In a possible implementation manner, a slanted flow guide plate is arranged in the space in the third contact plate, a suction cavity is formed between the bottom of the flow guide plate and the inner bottom of the third contact plate, a micro water pump is screw-connected in the suction cavity, the water outlet of the micro water pump is communicated with a spray head, and the upper end of the spray head extends outward through the circular truncated cone groove to above the circular truncated cone groove; The suction cavity is provided with a filter frame, and the filter frame is located at the end of the flow guide plate.

[0008] In a possible implementation manner, a grinding outer frame is fixedly connected with the side wall of the bottom of the circular truncated cone groove, a grinding inner roller is rotationally connected in the grinding outer frame, and the grinding inner roller is fixedly connected with the output shaft of the connecting motor; The side wall of the circular truncated cone groove is screw-connected with an electric push rod, the telescopic end of the electric push rod is fixedly connected with an embedded plate, a drill bit is rotationally connected with the embedded plate, and the bottom key groove of the drill bit is slidingly inserted into the connecting key of the transmission shaft at the upper end of the grinding inner roller.

[0009] In a possible implementation manner, the monitoring assembly comprises a connecting plate, and the connecting plate is fixedly connected with the side wall of the force plate; A second linear driver is fixedly connected with the connecting plate, and the output shaft of the second linear driver is rotationally connected with the connecting positions of the first connecting rod and the second connecting rod; The first connecting rod and the second connecting rod are rotationally connected with each other to form a V-shaped connecting piece, and the left and right ends of a plurality of V-shaped connecting pieces are rotationally connected with each other.

[0010] In a possible implementation manner, a rectangular frame is rotationally connected with the connecting positions of a plurality of first connecting rods and second connecting rods, a second electromagnetic spring is fixedly connected in the rectangular frame, the bottom of the second electromagnetic spring is fixedly connected with a sliding frame, the sliding frame is slidingly connected with the rectangular frame, and a distance sensor is embedded in the bottom of the sliding frame.

[0011] In a possible implementation manner, the contact assembly comprises a second connecting plate, and the second connecting plate is fixedly connected with the side walls of the third contact plate and the second contact plate.

[0012] In a possible implementation manner, the second connecting plate is slidably connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the sliding plate.

[0013] In a possible implementation manner, the second connecting plate is fixedly connected with an outer cylinder, and the outer cylinder is fixedly connected with a reset spring inside; The reset spring is fixedly connected with the connecting rod, and the connecting rod is slidably inserted into the outer cylinder; The outer cylinder is fixedly connected with a second distance sensor inside.

[0014] In a possible implementation manner, a drilling method for steel structure part machining comprises the following steps; Step one: place the H-shaped steel on the top of the workbench, control the first linear driver to drive the first contact plate to move to extrude and fix one end of the H-shaped steel, so that the left and right ends of the H-shaped steel are in contact with the first contact plate and the first connecting plate respectively, and the initial fixation of the H-shaped steel is completed; Step two: then place the first polishing assembly and the second polishing assembly in the space between the flange and the web of the H-shaped steel, and punch holes in the flange of the H-shaped steel through the first polishing assembly and the second polishing assembly.

[0015] Compared with the prior art, the drilling device and method for steel structure part machining have the following beneficial effects: 1、The structure of the second contact plate and the third contact plate is consistent with the structure of the connection between the web and the flange of the H-shaped steel, the L-shaped frame forms a concave structure through the rotation of the stepping motor, and the flange to be punched is wrapped, and the stable support of the upper and lower ends of the flange is realized through the extrusion of the first electromagnetic spring driving force plate, so that the movement or deformation of the H-shaped steel during punching is prevented; the second polishing assembly is driven to move in the H-shaped steel through the rollers on the top of the third contact plate and the second contact plate, so that the rapid adjustment of the machining position and the simultaneous detection of the inner side and the top of the H-shaped structure are realized. The first linear driver drives the first contact plate and the first connecting plate to extrude the left and right ends of the H-shaped steel, and cooperates with the limiting plate on the workbench to form a three-point positioning structure, so that the H-shaped steel is ensured not to deviate during machining.

[0016] 2、The second connecting plate, the sliding plate, the connecting rod and the reset spring in the contact assembly can adapt to the deformation of the connection between the web and the flange of the H-shaped steel, and the deformation data is monitored in real time through the second distance sensor.

[0017] 3、The rubber ring seals the punching area to form a sealed space, avoids the splashing of the cooling liquid and the fragments, and makes the fragments and the cooling liquid automatically flow back and slide downward through the influence of gravity, flow into the suction cavity through the circular cone groove and the flow guide plate; after the fragments are ground by the grinding outer frame and the grinding inner roller, the fragments are intercepted by the filter frame for recycling, and the cooling liquid can be recycled, so that the machining is environmentally friendly.

[0018] 4、The drill bit drills from the bottom, and after penetrating, the tip thereof is inserted into the connecting hole of the upper driving grinding ring. The rotating friction of the drill bit drives the driving grinding ring to rotate, thereby polishing the top edge of the hole drilled in the steel structure, and reducing the secondary processing procedure. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings: Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the second polishing assembly structure of the present application Figure 1 ; Figure 3 is a schematic diagram of the second polishing assembly structure of the present application Figure 2 ; Figure 4 is a schematic diagram of the third contact plate inner structure of the present application Figure 1 ; Figure 2 is a schematic diagram of the third contact plate inner structure of the present application Figure 6 ; Figure 1 is a schematic diagram of the monitoring assembly structure of the present application Figure 7 ; Figure 2 is a schematic diagram of the monitoring assembly structure of the present application Figure 8 ; Figure 1 is a schematic diagram of the contact assembly structure of the present application Figure 9 ; Figure 2 is a schematic diagram of the contact assembly structure of the present application Figure 10 ; Figure 1 is a schematic diagram of the force applying plate bottom structure of the present application.

[0020] In the figure: 1, workbench; 2, limiting plate; 3, first linear driver; 4, first contact plate; 5, first connecting plate; 6, first polishing assembly; 7, second polishing assembly; 72, second contact plate; 72, contact assembly; 73, first driving motor; 74, worm gear; 75, bevel gear set; 76, driving plate; 77, matching assembly; 721, second connecting plate; 722, sliding plate; 723, connecting rod; 724, outer cylinder; 725, return spring; 771, third contact plate; 772, L-shaped frame; 773, first electromagnetic spring; 774, force plate; 775, monitoring assembly; 776, engagement motor; 777, inner plate; 778, circular table groove; 7781, rubber ring; 779, guide plate; 7710, suction cavity; 7711, filter frame; 7712, nozzle; 7761, grinding inner roller; 7762, grinding outer frame; 7763, electric push rod; 7764, drill bit; 7751, connecting plate; 7752, second linear driver; 7753, first connecting rod; 7754, second connecting rod; 7755, rectangular frame; 7756, second electromagnetic spring; 7757, sliding frame; 7758, distance sensor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figure 10 - Figure 1 The drilling device for steel structure machining and the method thereof in the embodiment include a workbench 1, a limiting plate 2 fixedly connected on the workbench 1, and a first linear driver 3 fixedly connected on the limiting plate 2; the workbench 1 is provided with a controller for controlling electric components; The first linear driver 3 is used to drive a first contact plate 4 to slide on the top of the workbench 1; the first contact plate 4 and a first engagement plate 5 are used to extrude and fix the left and right ends of the H-shaped steel, facilitating subsequent punching and machining of the H-shaped steel. The other end of the workbench 1 away from the first contact plate 4 is fixedly connected with the first engagement plate 5. The workbench 1 is provided with a first polishing assembly 6 and a second polishing assembly 7, and the first polishing assembly 6 and the second polishing assembly 7 can punch the left and right ends of the H-shaped steel at the same time.

[0023] Please refer to Figure 10 - Figure 2 The first polishing assembly 6 and the second polishing assembly 7 are the same in structure; the second polishing assembly 7 includes a second contact plate 71, and the side walls of the second contact plate 71 and a third contact plate 771 are both connected with a contact assembly 72; the structures of the second contact plate 71 and the third contact plate 771 are consistent with the connection structures of the web and the flange of the H-shaped steel structure. The top left and right ends of the second contact plate 71 are fixedly connected with a guide telescopic rod (for example,Figure 1 The outer cylinder of the guide telescopic rod is fixedly connected to the top of the second contact plate 71, the inner cylinder of the guide telescopic rod is fixedly connected to the bottom of the third contact plate 771, the inner cylinder and the outer cylinder are slidably connected, and the stability of the third contact plate 771 is improved when the third contact plate 771 moves; The first driving motor 73 is fixedly connected to the top of the second contact plate 71, the output shaft of the first driving motor 73 is fixedly connected to the worm of the worm gear 74, power is applied to the worm gear 74 to drive the worm gear 74 to rotate through the first driving motor 73, and the bevel gear set 75 and the worm gear 74 are rotatably connected to the upper end of the second contact plate 71; The worm of the worm gear 74 is fixedly connected to the bevel gear set 75 at the center of the worm; Another set of bevel gears of the bevel gear set 75 is fixedly connected to a lead screw, and the lead screw is threadedly connected to the driving plate 76; Specifically, the top of the driving plate 76 is fixedly connected to the bottom of the matching assembly 77.

[0024] Specifically, when the H-shaped steel is punched, the H-shaped steel is placed on the workbench 1, then the first contact plate 4 is driven to move by the first linear driver 3, the first contact plate 4 is fixedly connected to the H-shaped steel through the first connecting plate 5, then the second polishing assembly 7 is placed between the upper and lower two groups of flanges of the H-shaped steel, then the first driving motor 73 is controlled to drive the worm gear 74 to rotate, the worm gear 74 drives the lead screw to drive the third contact plate 771 to move upwards through the bevel gear set 75, so that the third contact plate 771 is in contact with the connection between the flanges and the web of the H-shaped steel and the inner side wall of the two groups of flanges close to each other.

[0025] Please refer to Figure 10 - Figure 1 The matching assembly 77 comprises a third contact plate 771, the bottom of the third contact plate 771 is fixedly connected to the driving plate 76, the third contact plate 771 is driven to move by the driving plate 76, and the height of the third contact plate 771 is adjusted; The top of the third contact plate 771 and the bottom of the second contact plate 71 are both provided with a rotating groove, a roller is rotatably connected to the rotating groove, the top of the roller is flush with the top of the third contact plate 771, the outer end of the roller is provided with a rubber layer, friction is generated by the contact between the rubber layer and the H-shaped steel, a motor is arranged in the rotating groove, the motor is used to drive the roller to rotate and drive the third contact plate 771 to move in the H-shaped steel; A stepping motor is arranged on the third contact plate 771, the output shaft of the stepping motor is rotatably connected to the top of the third contact plate 771 and the L-shaped frame 772, the L-shaped frame 772 is driven to rotate by the stepping motor, the L-shaped frame 772 and the third contact plate 771 form a concave structure, and the third contact plate 771 and the L-shaped frame 772 are convenient for wrapping the flanges to be punched; The bottom of the L-shaped frame 772 is fixedly connected with a first electromagnetic spring 773 at four corners, and the bottom of the first electromagnetic spring 773 is fixedly connected with a force plate 774; the first electromagnetic spring 773 applies a pushing force to drive the force plate 774 to move downward to be in extrusion contact with the top of the flange, and the top of the third contact plate 771 is in extrusion contact with the flange, so that the upper and lower ends of the flange are supported; The bottom of the force plate 774 is rotatably connected with a driving grinding ring 7741, and the center of the driving grinding ring 7741 is provided with a connecting hole 7742; when the drill bit 7764 punches the H-shaped steel, the drill bit 7764 penetrates the flange of the H-shaped steel and is inserted into the connecting hole 7742 in the driving grinding ring 7741, the connecting hole 7742 and the drill bit 7764 generate a friction force, and the driving grinding ring 7741 is driven to rotate, and the driving grinding ring 7741 can grind the outer edge of the hole top of the flange; Please refer to Figure 10 - Figure 1 The side wall of the force plate 774 is fixedly connected with a monitoring assembly 775, and the bottom of the third contact plate 771 is bolted with a connecting motor 776; The third contact plate 771 is fixedly connected with an inner plate 777, and the top of the inner plate 777 is embedded with a circular truncated cone groove 778; the top of the third contact plate 771 is embedded with a rubber ring 7781; The inner space of the third contact plate 771 is provided with an inclined deflector 779, and the space between the bottom of the deflector 779 and the inner bottom of the third contact plate 771 forms a suction cavity 7710; a micro water pump is bolted in the suction cavity 7710, the water outlet of the micro water pump is communicated with a spray head 7712, and the upper end of the spray head 7712 extends outward above the circular truncated cone groove 778 through the circular truncated cone groove 778; The suction cavity 7710 is provided with a filter frame 7711, and the third contact plate 771 is provided with a transfer channel above the filter frame 7711, so that the filter frame 7711 can be easily lifted and transferred upward; the filter frame 7711 is located at the end of the deflector 779; the side wall of the third contact plate 771 is provided with two groups of one-way valves communicated with the suction cavity 7710, so that the external equipment can easily extract and inject the liquid in the suction cavity 7710, and the cooling liquid in the suction cavity 7710 can be easily replaced; In work, the stepping motor drives the L-shaped frame 772 to rotate upward, the L-shaped frame 772 covers the flange of the H-shaped steel, the first electromagnetic spring 773 drives the force plate 774 to move downward to extrude the top of the flange of the H-shaped steel, and the upper and lower ends of the flange of the H-shaped steel to be punched are fixedly supported; Then control the adapter motor 776 drive grinding inner roller 7761 rotation, grinding inner roller 7761 drive drill bit 7764 rotation, drill bit 7764 through the electric push rod 7763 drive gradually move up to the H-shaped steel flange hole punching, while the micro water pump will be the cooling liquid upward suction through the nozzle 7712 transmission to the upper hole punching area, and because the third contact plate 771 on the rubber ring 7781 will be wrapped in the flange bottom hole punching area, the hole punching area is closed, the hole punching generated debris or cooling liquid and will fall down to the circular table groove 778, cooling liquid entrainment hole punching generated debris down to the grinding outer frame 7762, grinding outer frame 7762 and through the cooperation of grinding inner roller 7761 on the hole punching generated debris grinding fall to the lower baffle 779, then down to the filter frame 7711, then the cooling liquid into the suction cavity 7710 inside, after processing is completed, the filter frame 7711 outside and can filter frame 7711 in the powder recycling.

[0026] Please refer to Figure 10 - Figure 1 , the circular table groove 778 bottom side wall fixedly connected with the grinding outer frame 7762, the grinding outer frame 7762 is rotatably connected with the grinding inner roller 7761, and the grinding inner roller 7761 is fixedly connected with the adapter motor 776 output shaft; The circular table groove 778 side wall is bolted with the electric push rod 7763, the telescopic end of the electric push rod 7763 is fixedly connected with an embedded plate, and the embedded plate is rotatably connected with the drill bit 7764; the bottom key groove of the drill bit 7764 is slidably inserted into the connecting key of the upper end transmission shaft of the grinding inner roller 7761.

[0027] Please refer to Figure 10 - Figure 1 , the monitoring assembly 775 comprises a connecting plate 7751, and the connecting plate 7751 is fixedly connected with the side wall of the force applying plate 774; The second linear driver 7752 is fixedly connected to the connecting plate 7751, and the output shaft of the second linear driver 7752 is rotatably connected with the first connecting rod 7753 and the second connecting rod 7754; The first connecting rod 7753 and the second connecting rod 7754 are rotatably connected into a V-shaped connecting piece, and the left and right ends of the plurality of V-shaped connecting pieces are rotatably connected with each other; The connecting portions of the plurality of first connecting rods 7753 and the second connecting rods 7754 are rotatably connected with a rectangular frame 7755, the second electromagnetic spring 7756 is fixedly connected in the rectangular frame 7755, the bottom of the second electromagnetic spring 7756 is fixedly connected with a sliding frame 7757, the sliding frame 7757 is slidably connected with the rectangular frame 7755, and a distance sensor 7758 is embedded in the bottom of the sliding frame 7757; In work, the distance sensor 7758 at the connection of the first connecting rod 7753 and the second connecting rod 7754 can be used to monitor the distance of the top of the H-shaped steel structure, the second linear driver 7752 is controlled to drive the multiple groups of V-shaped connectors to expand or shrink, so that the quadrilateral shape surrounded by the multiple groups of the first connecting rod 7753 and the second connecting rod 7754 changes, and the four corners of the quadrilateral quickly drive the multiple groups of the distance sensor 7758 to move irregularly to adjust the position, and multiple points on the top of the H-shaped steel flange are monitored; Then the second electromagnetic spring 7756 is controlled to drive the sliding frame 7757 to move downward, and the sliding frame 7757 can also extrude multiple points on the top of the H-shaped steel flange.

[0028] Please refer to Figure 10 - ​ The contact assembly 72 comprises a second connecting plate 721, which is fixedly connected with the third contact plate 771 and the sidewall of the second contact plate 71; The second connecting plate 721 is slidably connected with a connecting rod 723, and the other end of the connecting rod 723 is fixedly connected with a sliding plate 722; The second connecting plate 721 is fixedly connected with an outer cylinder 724, the outer cylinder 724 is fixedly connected with a reset spring 725 inside, the reset spring 725 is fixedly connected with the connecting rod 723, and the connecting rod 723 is slidably inserted into the outer cylinder 724; The outer cylinder 724 is fixedly connected with a second distance sensor inside; The sliding plate 722, the connecting rod 723, the outer cylinder 724 and the reset spring 725 are provided in multiple groups; Specifically, in work, the roller at the top of the third contact plate 771 is controlled to operate, the roller drives the second polishing assembly 7 to move as a whole to adjust the position of the H-shaped steel structure, multiple second connecting plates 721 are in contact with the connection between the web and the flange, when the connection is deformed and protrudes or is recessed, the force borne by the second connecting plate 721 changes, the second connecting plate 721 drives the connecting rod 723 to move in the outer cylinder 724 by a second distance sensor and senses the change, and it can be known whether the connection between the web and the flange of the H-shaped steel structure is deformed.

[0029] The mounting mode, the connecting mode or the setting mode disclosed in the embodiment are all common mechanical connection modes, as long as the beneficial effects can be achieved, and therefore the specific structural components and working principles will not be described in detail.

[0030] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it should be taken in its broadest possible sense. For example, the terms "a", "an", and "the" include both singular and plural referents unless the context clearly dictates otherwise. The terms "comprises", "comprising", "includes", "including" and the like can be used in conjunction with the term "consisting of to include the elements or steps listed after such conjunctive language, but not to the exclusion of other elements or steps. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. The term "plurality" means two or more. The term "consisting essentially of to provide that the composition or process include additional steps, elements, compounds, compositions of matter, or materials not specifically recited. The use of the terms "first", "second", and the like does not imply any particular ordering, but rather are used to denote distinct and separate steps. Where the context requires, the singular forms "a", "an" and "the" include their corresponding plural referents unless the context clearly dictates otherwise. Terms such as "above" and "below" refer to positions relative to the orientation of the figures and are used for purposes of illustration and description only. Terms such as "first" and "second" are used to identify various elements, but the elements should not be limited by these terms. The use of the terms "first" and "second" are not necessarily intended to connote chronological order, but rather serve as labels to distinguish one element from another. The use of the terms "a", "an", and "the" and / or the use of articles in the singular and plural sense are intended to cover a

[0031] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, alternatives and variations will be apparent to those skilled in the art once the general inventive concepts have been made known. Accordingly, the scope of the claims should not be limited to the described embodiments.

Claims

1. A drilling device for processing steel structural parts, comprising a workbench (1), a limiting plate (2) fixedly connected to the workbench (1), and a first linear drive (3) fixedly connected to the limiting plate (2); The first linear drive (3) is used to drive the first contact plate (4) to be slidably connected to the top of the workbench (1); The other end of the workbench (1) away from the first contact plate (4) is fixedly connected to the first connecting plate (5); Its characteristics are: A first grinding assembly (6) and a second grinding assembly (7) are provided on the workbench (1); The first grinding assembly (6) and the second grinding assembly (7) have the same structure; The second polishing assembly (7) comprises a second contact plate (71), and the side walls of the second contact plate (71) and the third contact plate (771) are both connected to contact assemblies (72); The top of the second contact plate (71) is bolted to a first drive motor (73), and the output shaft of the first drive motor (73) is fixedly connected to the worm on the worm gear (74); The center of the worm wheel on the worm gear (74) is fixedly connected to the bevel gear set (75); Another set of bevel gears on the bevel gear set (75) is fixedly connected to a screw rod, and the screw rod is connected to the internal thread of the drive plate (76); The top of the drive plate (76) is fixedly connected to the bottom of the matching component (77); The mating assembly (77) includes a third contact plate (771), and the bottom of the third contact plate (771) is fixedly connected to the driving plate (76); A stepper motor is provided on the third contact plate (771), and the output shaft of the stepper motor drives the L-shaped frame (772) to be rotatably connected to the top of the third contact plate (771); The four corners of the bottom of the L-shaped frame (772) are respectively fixedly connected to first electromagnetic springs (773), and the bottom of the first electromagnetic spring (773) is fixedly connected to a force application plate (774).

2. A drilling device for machining steel structures according to claim 1, characterized in that: The bottom of the force applying plate (774) is rotatably connected to a driving grinding ring (7741), and a connecting hole (7742) is provided at the center of the driving grinding ring (7741); The side wall of the force application plate (774) is fixedly connected to a monitoring assembly (775), and the bottom of the third contact plate (771) is bolted to a connecting motor (776); An inner plate (777) is fixedly connected to the inner portion of the third contact plate (771); a truncated cone groove (778) is embedded in the top of the inner plate (777); and a rubber ring (7781) is embedded in the top of the third contact plate (771).

3. A drilling device for machining steel structures according to claim 2, characterized in that: An inclined guide plate (779) is provided in the space inside the third contact plate (771). A suction chamber (7710) is formed in the space between the bottom of the guide plate (779) and the bottom of the third contact plate (771). A micro water pump is bolted to the suction chamber (7710). The water outlet of the micro water pump is connected to the nozzle (7712). The upper end of the nozzle (7712) passes through the truncated cone groove (778) and extends outward to above the truncated cone groove (778). A filter frame (7711) is placed in the suction chamber (7710), and the filter frame (7711) is located at the end of the guide plate (779).

4. A drilling device for machining steel structures according to claim 3, characterized in that: The bottom side wall of the truncated cone groove (778) is fixedly connected to a grinding outer frame (7762), a grinding inner roller (7761) is rotatably connected inside the grinding outer frame (7762), and the grinding inner roller (7761) is fixedly connected to the output shaft of the connecting motor (776); The side wall of the frustum groove (778) is bolted with an electric push rod (7763), the telescopic end of the electric push rod (7763) is fixedly connected to an embedded plate, the embedded plate is rotatably connected to a drill bit (7764), and the keyway at the bottom of the drill bit (7764) is slidably inserted into the connecting key of the transmission shaft at the upper end of the grinding inner roller (7761).

5. The drilling device for machining steel structures according to claim 2, characterized in that: The monitoring assembly (775) includes a connecting plate (7751), and the connecting plate (7751) is fixedly connected to the side wall of the force application plate (774); A second linear drive (7752) is fixedly connected to the connecting plate (7751), and an output shaft of the second linear drive (7752) is rotatably connected to a connection between the first connecting rod (7753) and the second connecting rod (7754); The first connecting rod (7753) and the second connecting rod (7754) are rotatably connected to each other to form a V-shaped connecting member, and the left and right ends of multiple groups of V-shaped connecting members are rotatably connected to each other.

6. The drilling device for machining steel structures according to claim 5, characterized in that: A rectangular frame (7755) is rotatably connected to the connection points of the plurality of first connecting rods (7753) and the second connecting rods (7754). A second electromagnetic spring (7756) is fixedly connected inside the rectangular frame (7755). The bottom of the second electromagnetic spring (7756) is fixedly connected to a sliding frame (7757). The sliding frame (7757) is slidably connected to the inside of the rectangular frame (7755). A distance sensor (7758) is embedded in the bottom of the sliding frame (7757).

7. The drilling device for machining steel structures according to claim 1, characterized in that: The contact assembly (72) comprises a second connecting plate (721), and the second connecting plate (721) is fixedly connected to the third contact plate (771) and the side wall of the second contact plate (71).

8. The drilling device for machining steel structures according to claim 7, characterized in that: A connecting rod (723) is slidably connected to the second connecting plate (721), and the other end of the connecting rod (723) is fixedly connected to the sliding plate (722).

9. The drilling device for machining steel structures according to claim 8, characterized in that: An outer cylinder (724) is fixedly connected to the second connecting plate (721), and a return spring (725) is fixedly connected inside the outer cylinder (724); The return spring (725) is fixedly connected to the connecting rod (723), and the connecting rod (723) is slidably inserted into the outer cylinder (724); A second distance sensor is fixedly connected inside the outer cylinder (724).

10. A drilling method for processing steel structure parts, characterized in that The drilling device for machining steel structural parts according to claim 1 is characterized in that it comprises the following steps: Step 1: Place the H-shaped steel on top of the workbench (1), control the first linear actuator (3) to drive the first contact plate (4) to move and squeeze and fix one end of the H-shaped steel, so that the left and right ends of the H-shaped steel are in contact with the first contact plate (4) and the first connecting plate (5) respectively, thereby completing the initial fixation of the H-shaped steel; Step 2: Then place the first grinding assembly (6) and the second grinding assembly (7) in the space between the flange and the web of the H-shaped steel, and use the first grinding assembly (6) and the second grinding assembly (7) to punch holes in the flange of the H-shaped steel.

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