An angle steel drilling device

Abstract

The utility model provides an angle steel drilling equipment, aims at solving the problem of angle steel drilling equipment structure complex, large floor space, low processing efficiency and high cost in prior art. The device includes: the bed body, is equipped with the pass -through mouth for angle steel to pass through on it; first sliding plate and second sliding plate are symmetrically arranged along the pass -through mouth, are driven by the accurate distance drive component to adjust the drilling accurate distance; and first unit and second drilling unit are installed on first sliding plate and second sliding plate respectively, are driven by the feed drive component to carry out drilling feed, first drilling unit and second drilling unit all adopt multi -station turret drilling power head. The design greatly simplifies the overall structure of equipment, does not need complicated tool changing mechanism or huge multi -spindle box, significantly reduces the floor space of equipment, has the advantages of compact structure, high efficiency, good precision, and is easy to integrate to the automatic production line, realizes the intensive production.

Description

Technical Field

[0001] This utility model relates to the technical field of angle steel processing equipment, specifically to an angle steel drilling device. Background Technology

[0002] To meet the requirements for the installation and erection of transmission line towers, angle steel, as a key component, needs to be drilled along its A and B sides, and the corresponding alignment, end distance, and hole spacing requirements should be ensured.

[0003] Existing CNC angle steel drilling equipment typically employs complex structures to accommodate the processing needs of various types and specifications of angle steel, as well as different hole diameters. For example, some equipment uses a single spindle drilling power head with an inline or turret-type tool magazine layout, requiring frequent tool changes to process holes of different diameters. This results in long processing auxiliary time and low efficiency. Other equipment uses multiple (e.g., three) drilling spindles arranged side by side, each spindle equipped with a different type of drill bit. Spindle switching is achieved by moving the entire power head. While this structure avoids tool changes, the power head is bulky, complex in structure, and has a large moment of inertia, placing high demands on the drive system. Existing technical solutions generally suffer from drawbacks such as complex overall equipment structure, large footprint, high foundation construction requirements, and high manufacturing and maintenance costs, making it difficult to meet the requirements of modern production for equipment integration, high efficiency, and economy.

[0004] Therefore, providing a simplified, smaller, lower-cost, and more specialized angle steel drilling equipment has become a pressing technical problem to be solved in this field. Utility Model Content

[0005] To address the aforementioned shortcomings of existing equipment, this utility model provides an angle steel drilling device, aiming to improve the specialization of angle steel drilling equipment and the utilization rate of the site, while reducing the manufacturing and operating costs of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A drilling machine for angle steel, used for drilling angle steel with mutually perpendicular A-sides and B-sides, includes a bed with a feed port for the angle steel to pass through, characterized in that it further includes: The sliding plate unit includes a first sliding plate and a second sliding plate located on the outer sides of the A and B sides of the angle iron, respectively, and a pitch drive assembly for driving the first sliding plate and the second sliding plate to slide along the width direction of the A and B sides, respectively. The drilling unit includes a first drilling unit and a second drilling unit located on the outer sides of the A and B sides of the angle steel, respectively, and a feed drive assembly for driving the first drilling unit and the second drilling unit to slide in directions perpendicular to the A and B sides, respectively, connected to the first and second sliding plates. Furthermore, both the first drilling unit and the second drilling unit include a multi-station turret drilling power head.

[0007] Furthermore, a guide material support mechanism is provided at the material outlet to support the lower side of the angle steel.

[0008] Furthermore, the guiding material support mechanism consists of rollers, roller seats, material support lugs, and material support cylinders. Two sets of rollers are provided, symmetrically arranged on both sides of the roller seats and rotatably connected to the roller seats. The rotation axes are distributed along the directions parallel to the A and B surfaces of the angle steel, respectively. The material support lugs are universally hinged to the bottom of the roller seats. The piston rod of the material support cylinder is distributed along the vertical direction and its movable end is fixedly connected to the material support lugs.

[0009] Furthermore, the bed is also equipped with a pressing mechanism for vertically pressing the upper side of the angle steel.

[0010] Furthermore, the pressing mechanism includes a pressing cylinder, a pressing lug, a pressing slide plate, a front pressing clamp plate, a middle pressing clamp plate, and a rear pressing clamp plate. The cylinder body of the pressing cylinder is fixedly connected to the bed, the piston rod axis is distributed vertically and its movable end is fixedly connected to the pressing lug, the pressing lug is universally hinged to the pressing slide plate, the pressing slide plate is slidably connected to the bed in the vertical direction, the middle pressing clamp plate is fixedly connected below the pressing slide plate, and the front pressing clamp plate and the rear pressing clamp plate are detachably fixedly connected to the front and rear sides of the middle pressing clamp plate respectively in the angle steel feeding direction. The lower ends of the front pressing clamp plate and the rear pressing clamp plate are provided with inclined surfaces that fit the inner surfaces of the A and B sides of the angle steel at an angle.

[0011] Furthermore, drilled relief grooves are formed on both sides of the front and rear clamping plates and the middle clamping plate near the angle steel, on the A and B sides respectively.

[0012] Furthermore, the alignment drive assembly consists of an alignment servo motor and an alignment ball screw fixedly connected to the bed. The length of the alignment ball screw is distributed along the movement direction of the first or second slide plate, and one end of the alignment ball screw is connected to the output shaft of the alignment servo motor. The screw nut of the alignment ball screw is fixedly connected to the first or second slide plate.

[0013] Furthermore, the feed drive assembly includes a feed servo motor and a feed ball screw. The feed servo motor is fixedly connected to the first slide plate or the second slide plate. The screw length of the feed ball screw is distributed along the sliding direction of each drilling unit and one end is connected to the output shaft of the feed servo motor. The screw nut of the feed ball screw is fixedly connected to the first drilling unit or the second drilling unit.

[0014] Furthermore, both the first drilling unit and the second drilling unit consist of a slide, a multi-station turret drilling power head, and a drilling servo motor. The slide is slidably connected to the first slide plate and the second slide plate in directions perpendicular to the A and B surfaces of the angle steel, respectively. The multi-station turret drilling power head is fixedly connected to the slide plate, and the drilling servo motor is connected to the multi-station turret drilling power head via a transmission connection.

[0015] Furthermore, the bed is also provided with a distance limiting component for restricting the sliding of the first slide plate and the second slide plate along the width direction of the A or B surface of the angle steel. The first slide plate and the second slide plate are provided with feed limiting components for restricting the sliding of the first drilling unit and the second drilling unit along the directions perpendicular to the A and B surfaces of the angle steel, respectively.

[0016] The technical solution provided by this utility model has the following advantages compared with the prior art: 1. The existing technologies, such as the dual-spindle power head + inline tool magazine layout or the dual-spindle power head layout with three spindles side by side, are integrated into a dual-spindle turret drilling power head layout structure with symmetrical sides, so as to meet the processing requirements of drilling multiple diameter holes on the A and B sides of various types of angle steel. 2. The drill bit on the multi-station turret drilling power head can drive the first slide plate to slide along the width direction of the A or B side of the angle steel through the alignment drive assembly, thereby facilitating the adjustment of the drilling position in the width direction of the angle steel flange. It can also drive the slide plate to slide in the direction perpendicular to the A or B side of the angle steel through the feed drive assembly, so that the drilling operation can be performed after the drilling position is adjusted to the alignment position required by the angle steel part. 3. The bed is equipped with a distance limiting block and the distance driving assembly is equipped with a first buffer pad. The two work together to limit the extreme position of the multi-station turret drilling power head in the width direction of the angle steel flange. The first slide and the second slide are equipped with feed limiting blocks and the feed driving assembly is equipped with a second buffer pad. The two work together to limit the extreme position of the multi-station turret drilling power head in the direction perpendicular to the A or B surface of the angle steel. In addition, with the drilling relief groove on the clamping chuck plate, the drill bit can be ensured to penetrate the angle steel flange while avoiding the problem of drill bit damage caused by contact between the drill bit and the clamping chuck plate. 4. When irregularly shaped angle steel enters the equipment, the rigid support and clamping device will cause stress concentration or unstable contact, resulting in inaccurate workpiece positioning or even deformation, which seriously affects the drilling accuracy. The material support roller and pressure clamp plate used in this device are connected to the drive mechanism through a universal hinge structure, so they can swing freely within a certain range, thereby automatically conforming to the actual contour of the angle steel, achieving uniform and stable support and clamping, ensuring the stability and accuracy of the workpiece during processing, and effectively eliminating the adverse effects of angle steel shape error on drilling accuracy. 5. This device has a simple layout and occupies a small area. It can be combined with related equipment such as feeding channels, conveying robots, finished product channels, typing units, and shearing units on the angle steel production line to form a highly integrated automated production line from raw angle steel to finished angle steel. This enables an intensive production mode of multi-variety angle steel with multiple processes, while improving the utilization rate of the equipment production site. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view of the structure of this utility model; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 BB section view; Figure 5 for Figure 3 Enlarged view of a portion of point C in the middle; Figure 6 for Figure 3 Enlarged view of a portion of point D; Figure 7 This is a schematic diagram of the device without the multi-station turret drilling power head, guide material support mechanism, and pressure material mechanism installed. Figure 8 This is a schematic diagram of the distance drive component structure; Figure 9 A schematic diagram of the alignment drive component from another perspective; Figure 10 This is a schematic diagram of the feed drive component structure; Figure 11 Schematic diagrams of the first and second drilling units; Figure 12 This is a schematic diagram of the first and second drilling units from another perspective. Figure 13 A schematic diagram showing the connection between the guiding material support mechanism and the pressing mechanism; Figure 14 for Figure 13 The left view; Figure 15 for Figure 13Top view; Figure 16 Schematic diagram of the guiding material support mechanism; Figure 17 A three-dimensional sectional view of the guiding material support mechanism; Figure 18 This is a schematic diagram of the pressing mechanism; Figure 19 This is the front view of the pressing mechanism; Figure 20 for Figure 19 EE section view; Figure 21 for Figure 19 FF section view in the image.

[0019] in: 1-Bed, 101-Feed inlet, 102-First guide rail, 103-First slider; 2-First skateboard; 3-Second skateboard; 4-Pitch drive assembly, 401-Pitch servo motor, 402-Pitch ball screw, 403-Bearing housing, 404-First buffer pad, 405-First transmission housing, 406-First driving pulley, 407-First driven pulley, 408-First synchronous belt; 5-First drilling unit, 501-Slide plate, 502-Multi-station turret drilling power head, 503-Drilling servo motor, 504-Second transmission box, 505-Second guide rail, 506-Second slider, 507-Second driving pulley, 508-Second driven pulley, 509-Second synchronous belt; 6-Second drilling unit; 7-Feed drive assembly, 701-Feed servo motor, 702-Fixed base, 703-Coupling, 704-Feed ball screw, 705-Flange, 706-Second buffer pad; 8-Guide material support mechanism, 801-Material support roller, 802-Roller seat, 803-Material support ear seat, 804-Material support cylinder, 805-First pin, 806-First spherical bearing, 807-First tightening screw; 9-Pressure mechanism, 901-Pressure seat, 902-Cylinder seat, 903-Pressure cylinder, 904-Pressure ear seat, 905-Pressure slide plate, 906-Front pressure clamp plate, 907-Middle pressure clamp plate, 908-Rear pressure clamp plate, 909-Second pin, 910-Second spherical bearing, 911-Second tightening screw, 912-Third pin, 913-Fastening bolt, 914-Drilled relief groove, 915-Pressure guide plate, 916-Limit switch, 917-Signaling component; 10-Precision distance limiting block; 11-Feed limit block; 12 - angle steel. DETAILED DESCRIPTION OF EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0021] It should be noted that, in this embodiment, in Figure 1 , the direction shown by the arrow is the machining direction of the angle steel 12, that is, the front-rear direction. The two mutually perpendicular flanges of the angle steel 12 are surface A and surface B respectively.

[0022] As Figures 1-21 shows, the present utility model provides an angle steel drilling device, comprising a bed 1, a first sliding plate 2, a second sliding plate 3, a first drilling unit 5 and a second drilling unit 6, wherein the first sliding plate 2 and the second sliding plate 3, as well as the first drilling unit 5 and the second drilling unit 6 are all arranged along Figure 2 the shown vertical center line is bilaterally symmetrical and distributed at a 90° included angle. The device also comprises a pitch alignment driving assembly 4 for driving the first sliding plate 2 or the second sliding plate 3 to be slidably connected to the bed 1 along the surface A or surface B of the angle steel 12, a feed driving assembly 7 for driving the first drilling unit 5 or the second drilling unit 6 to be slidably connected to the first sliding plate 2 or the second sliding plate 3 along a direction perpendicular to the surface A or surface B of the angle steel 12, and a guiding material supporting mechanism 8 and a material pressing mechanism 9 respectively arranged below and above the material passing opening 101.

[0023] Specifically, a material passing opening 101 is provided at the upper part of the middle position of the bed 1 and the material pressing mechanism 9 for the angle steel 12 to pass through from front to back. The lower part of the material passing opening 101 is along Figure 2 two inclined surfaces which are bilaterally symmetrical about the vertical center line of the bed 1 shown in the figure, form 90° with each other and form 45° with the horizontal plane respectively. First guide rails 102 are symmetrically arranged on the left and right sides of the bed 1 about the vertical center line of the bed 1, the length of the first guide rails 102 is distributed parallel to the width direction of the surface A or surface B of the angle steel 12, and the first sliding plate 2 and the second sliding plate 3 are slidably connected to the first guide rails 102 on the left and right sides respectively through a group of first sliding blocks 103, so as to be slidably connected with the bed 1.

[0024] the pitch alignment driving assembly 4 is as Figure 4 and Figures 7-9As shown, the system includes a precision servo motor 401, a precision ball screw 402, a bearing housing 403, a first buffer pad 404, and a first transmission housing 405. The first transmission housing 405 houses a first driving pulley 406, a first driven pulley 407, and a first synchronous belt 408. The bearing housing 403 is fixedly connected to the first transmission housing 405 and coaxially distributed with the first driven pulley 407. The screw nut of the precision ball screw 402 is fixedly connected to either the first sliding plate 2 or the second sliding plate 3. The length of the screw of the precision ball screw 402 is parallel to the length of the first guide rail 102. The sliding direction of the first slide plate 2 is distributed in the degree direction. One end of the precision ball screw 402 in the length direction passes through the bearing seat 403 and is coaxially fixedly connected to the first driven pulley 407. The precision servo motor 401 is coaxially fixed to the first driving pulley 406. The first synchronous pulley 408 is connected between the first driving pulley 406 and the first driven pulley 408. Thus, the precision ball screw 402 is driven to rotate by the precision servo motor 401, which in turn drives the screw nut and the first slide plate 2 to slide along the width direction of the A side of the angle steel 12 or drives the second slide plate 3 to slide along the width direction of the B side.

[0025] And, as Figure 8 As shown, a first buffer pad 404, coaxially sleeved on the outside of the screw, is also fixedly connected to one side of the bearing housing 403. The first buffer pad 404 can be used to limit the extreme positions of the movement of the first slide plate 2 and the second slide plate 3 along the flange width direction of the angle steel 12; as shown Figure 7 As shown, a distance limiting block 10 is fixedly connected to the bed 1. The distance limiting block 10 is located on the side near the lower end of the first guide rail 102. The distance limiting block 10 can limit the extreme position of the first slide plate 2 and the second slide plate 3 moving downward along the width direction of the flange of the angle steel 12.

[0026] like Figure 11 and Figure 12As shown, both the first drilling unit 5 and the second drilling unit 6 consist of a slide 501, a multi-station turret drilling power head 502, a drilling servo motor 503, and a second transmission housing 504. The lower end of the slide 501 is fixedly connected to a second guide rail 505, the length of which is distributed along a plane perpendicular to the A or B surface of the angle steel 12. A second slider 506 is slidably connected to the second guide rail 505, and the second slider 506 is fixedly connected to the first slide plate 2 or the second slide plate 3. The drilling servo motor 503 is fixedly connected to the second transmission housing 504 above the slide 501. A second drive pulley 50 is installed inside the second transmission housing 504. 7. The second driven pulley 508 and the second synchronous belt 509 connected between them; the output shaft of the drilling servo motor 503 passes through the inside of the second transmission housing 504 and is coaxially and fixedly connected to the second driven pulley 508; the main body of the multi-station turret drilling power head 502 is fixedly connected above the slide 501, and its input shaft is coaxially and fixedly connected to the second driven pulley 508. The drilling servo motor 503 can drive the multi-station turret drilling power head 502 to rotate through the second driving pulley 507, the second driven pulley 508 and the second synchronous belt 509 connected between them, thereby allowing the selection of drill bits with different shaft diameters.

[0027] like Figure 10 As shown, the feed drive assembly 7 consists of a feed servo motor 701, a fixed base 702, a coupling 703, a feed ball screw 704, and a flange 705. The fixed base 702 has through holes distributed along the sliding direction of the first drilling unit 5 or the second drilling unit 6. The flange 705 is fixedly connected to the fixed base 702. The feed servo motor 701 is fixedly connected to the fixed base 702, and its output shaft is coaxially fixed with the coupling 703. The feed ball screw 704... One end of the screw of 4 passes through the through hole on the fixed seat 702 and the flange 705 and is coaxially fixedly connected to the coupling 703. The screw nut of the feed ball screw 704 is fixedly connected to the slide 501 of the first drilling unit 5 or the second drilling unit 6. The feed ball screw 704 can be driven to rotate by the feed servo motor 701, thereby driving the slide 501 to slide along the length direction of the second guide rail 505 (that is, along the direction perpendicular to the A or B surface of the angle steel 12).

[0028] And, as Figure 10 As shown, a second buffer pad 706 is also fixedly connected to the side of the fixed seat 702 near the angle steel 12. The second buffer pad 706 is coaxially sleeved on the outside of the screw of the feed ball screw 704. The second buffer pad 706 can limit the extreme positions of the movement of the first drilling unit 5 and the second drilling unit 6 in the direction perpendicular to the A or B surface of the angle steel 12; Figure 7As shown, the first slide plate 2 and the second slide plate 3 are both fixedly connected to the end near the angle steel 12 with a feed limit block 11. The feed limit block 11 can limit the slide plate 501 to slide upwards at the extreme position in the direction perpendicular to the A and B surfaces of the angle steel 12.

[0029] like Figure 1 , Figures 3-5 as well as Figure 13 , Figure 16 , Figure 17 As shown, the guiding material support mechanism 8 consists of a material support roller 801, a roller seat 802, a material support ear seat 803, and a material support cylinder 804. Two sets of material support rollers 801 are symmetrically fixed to the roller seat 802 along the vertical center line of the bed 1. Each set of material support rollers 801 is rotatably connected to the roller seat 802. The rotation axes of the two sets of material support rollers 801 are distributed along the width direction parallel to the A and B surfaces of the angle steel 12, respectively. It should be noted that the inner side of the material support roller 801... The inclined surface is flush with the two inner sides of the lower end of the feed port 101 on the bed 1. The roller seat 802 is fixedly connected to the pressure seat 901 on the pressure mechanism 9. The lower middle end of the roller seat 802 is provided with mounting holes distributed from front to back. A first joint bearing 806 is provided in the mounting holes. The outer ring of the first joint bearing 806 is fixed to the roller seat 802. The upper part of the material support ear seat 803 is provided with a groove that mates with the lower middle end of the roller seat 802. The groove is provided with a groove that mates with the roller seat 802 from front to back. The through hole corresponding to the mounting hole position on 02, the first pin 805 passes through the through hole on the material support lug 803 and the inner ring of the first spherical bearing 806 from front to back. That is, the roller seat 802 can swing within a certain range through the first spherical bearing 806 to adapt to the shape error of the outer surface (support surface) of the A and B surfaces of the angle steel 12, thereby eliminating the influence of the shape error of the outer surface of the angle steel 12; in addition, the piston rod axis of the material support cylinder 804 is distributed vertically and located at the upper end of the piston rod. The moving end is provided with an external thread, and the lower end of the material support ear 803 is also provided with vertically distributed threaded holes. The piston rod of the material support cylinder 804 is threadedly connected to the material support ear 803. Furthermore, the outer side of the material support ear 803 is also provided with a tightening hole communicating with the threaded holes. A first tightening screw 807 is provided in the tightening hole. After the vertical position between the piston rod of the material support cylinder 804 and the material support ear 803 is determined, the two can be fixed by the first tightening screw 807.

[0030] like Figures 1-3 , Figure 6 , Figures 13-15 as well as Figures 18-21As shown, the pressing mechanism 9 consists of a pressing seat 901, a cylinder seat 902, a pressing cylinder 903, a pressing ear seat 904, a pressing slide plate 905, and a pressing clamp plate. The pressing seat 901 is fixedly connected to the front end face of the bed 1. The cylinder seat 902 is fixedly connected to the upper end of the pressing seat 901. The cylinder body of the pressing cylinder 903 is fixed to the cylinder seat 902. The piston rod of the pressing cylinder 903 is vertically distributed, and its lower end is universally hinged to the pressing slide plate 905 via the pressing ear seat 904. Its connection structure is similar to that of the material support mechanism. Specifically, a second joint bearing 910 is fixedly connected in the groove at the lower end of the pressing ear seat 904, and a through hole is provided on its outer side. The upper end of the pressing slide plate 905 is provided with mounting holes that are distributed corresponding to the through hole positions. The second pin 909 passes through the pressing seat from front to back. The through hole on the ear seat 904 and the inner ring of the second joint bearing 910 allow the pressure ear seat 904 to swing within a certain range through the second joint bearing 910. This allows the pressure clamp plate to adapt to the shape errors of the inner surfaces of the A and B sides of the angle steel 12, thereby avoiding the problem of machining accuracy being affected by the shape error of the upper pressing surface of the angle steel 12 during drilling. Moreover, the lower end of the piston rod of the pressure cylinder 903 is also provided with external threads, and the upper end face of the pressure ear seat 904 is provided with vertically distributed threaded holes. The two are threaded together, and the outer side of the pressure ear seat 904 is provided with a tightening hole communicating with the threaded hole. A second tightening screw 911 is provided in the tightening hole, which is convenient for adjusting the position of the piston rod of the pressure cylinder 903 and the pressure ear seat 904 in the vertical direction, and then fixing them with the second tightening screw 911.

[0031] The clamping plates consist of a front clamping plate 906, a middle clamping plate 907, and a rear clamping plate 908. The front clamping plate 906 and the rear clamping plate 908 are located on the front and rear sides of the middle clamping plate 907, respectively, and threaded holes are provided between them in corresponding positions. The three plates are fixedly connected by fastening bolts 913 and nuts. On the left and right sides between the front clamping plate 906, the middle clamping plate 907, and the rear clamping plate 908, there are also... Figure 18 The drill bit, after penetrating the flange of the angle steel 12, can extend into the drill hole relief groove 914 to avoid direct contact with the clamping jaws. Furthermore, the lower left and right sides of the front clamping jaws 906 and the rear clamping jaws 908 are inclined surfaces that respectively conform to the A and B surfaces of the angle steel 12. A groove is also formed between the upper parts of the front clamping jaws 906 and the rear clamping jaws 908, and the lower end of the clamping slide 905 is located within the groove. The upper parts of the front clamping jaws 906 and the rear clamping jaws 908, and the lower part of the clamping slide 905, are all provided with mounting holes that are distributed through the front and rear and are correspondingly positioned. A third pin 912 is installed in each mounting hole. It should be noted that when the third pin 912 is installed, there is a certain distance between the lower end of the clamping slide 905 and the upper end of the middle clamping jaws 907. Figure 20As shown, this allows the pressure plate 905 to swing around the third pin 912 within a certain range, enabling the pressure clamp plate to automatically adjust its posture to fully fit the actual side (inner side) of the angle steel 12, further avoiding the problem of drilling accuracy being affected by the shape error of the pressing surface (inner side) of the angle steel 12.

[0032] The left and right sides of the pressing slide plate 905 are also provided with pressing guide plates 915. The pressing guide plates 915 are fixed to the pressing base 901 and have vertically distributed grooves on their inner sides. The left and right sides of the pressing slide plate 905 are slidably connected to the pressing base 901 through the grooves. A limit switch 916 is also provided on the left side of the pressing base 901. A signaling component 917 is also fixedly connected to the left side of the pressing slide plate 905. When the pressing cylinder 903 drives the pressing slide plate 905 to slide up and down, the positioning, pressing and releasing signals of the angle steel 12 can be realized through the signaling component 917 and the limit switch 916.

[0033] This device can be combined with the front-end feeding channel, conveying robot, and the rear-end finished product channel to form an automated production line for angle steel drilling, thereby reducing the equipment's footprint.

[0034] The working principle and processing flow of this device for drilling holes in angle steel 12 are as follows: The entire drilling process from raw angle steel material conveying to finished angle steel is completed. The finished angle steel is then conveyed from the front feed channel and conveying robot to the rear finished product channel. Finally, the finished angle steel is conveyed manually or by a robot to the finished product area. The entire drilling process is repeated.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drilling machine for angle steel, used for drilling angle steel with mutually perpendicular A-sides and B-sides, comprising a bed, wherein the bed is provided with a feed port for the angle steel to pass through, characterized in that, Also includes: The sliding plate unit includes a first sliding plate and a second sliding plate located on the outer sides of the A and B sides of the angle iron, respectively, and a pitch drive assembly for driving the first sliding plate and the second sliding plate to slide along the width direction of the A and B sides, respectively. The drilling unit includes a first drilling unit and a second drilling unit located on the outer sides of the A and B sides of the angle steel, respectively, and a feed drive assembly for driving the first drilling unit and the second drilling unit to slide in directions perpendicular to the A and B sides, respectively, connected to the first and second sliding plates. Furthermore, both the first drilling unit and the second drilling unit include a multi-station turret drilling power head.

2. The angle steel drilling equipment according to claim 1, characterized in that, The material passage is equipped with a guide and material support mechanism for supporting the lower side of the angle steel.

3. The angle steel drilling equipment according to claim 2, characterized in that, The guiding material support mechanism consists of a material support roller, a roller seat, a material support ear seat, and a material support cylinder. There are two sets of material support rollers, which are symmetrically arranged on both sides of the roller seat and are rotatably connected to the roller seat. The rotation axes are distributed along the directions parallel to the A and B surfaces of the angle steel, respectively. The material support ear seat is universally hinged to the bottom of the roller seat. The piston rod of the material support cylinder is distributed along the vertical direction and its movable end is fixedly connected to the material support ear seat.

4. The angle steel drilling equipment according to claim 1, characterized in that, The bed is also equipped with a pressing mechanism for vertically pressing the upper side of the angle steel.

5. The angle steel drilling equipment according to claim 4, characterized in that, The pressing mechanism includes a pressing cylinder, a pressing lug, a pressing slide plate, a front pressing clamp plate, a middle pressing clamp plate, and a rear pressing clamp plate. The cylinder body of the pressing cylinder is fixedly connected to the bed, the piston rod axis is distributed vertically and the movable end is fixedly connected to the pressing lug, the pressing lug is universally hinged to the pressing slide plate, the pressing slide plate is slidably connected to the bed in the vertical direction, the middle pressing clamp plate is fixedly connected below the pressing slide plate, the front pressing clamp plate and the rear pressing clamp plate are detachably fixedly connected to the front and rear sides of the middle pressing clamp plate in the angle steel feeding direction, and the lower ends of the front pressing clamp plate and the rear pressing clamp plate are provided with inclined surfaces that fit the inner surfaces of the A and B sides of the angle steel at an angle.

6. The angle steel drilling equipment according to claim 5, characterized in that, Drilled relief grooves are formed on both sides of the front and rear clamping plates and the middle clamping plate, near the angle steel on the A and B sides.

7. The angle steel drilling equipment according to claim 1, characterized in that, The alignment drive assembly consists of an alignment servo motor and an alignment ball screw fixedly connected to the bed. The length of the alignment ball screw is distributed along the movement direction of the first or second slide plate, and one end of the alignment ball screw is connected to the output shaft of the alignment servo motor. The screw nut of the alignment ball screw is fixedly connected to the first or second slide plate.

8. The angle steel drilling equipment according to claim 1, characterized in that, The feed drive assembly includes a feed servo motor and a feed ball screw. The feed servo motor is fixedly connected to a first slide plate or a second slide plate. The screw length of the feed ball screw is distributed along the sliding direction of each drilling unit and one end is connected to the output shaft of the feed servo motor. The screw nut of the feed ball screw is fixedly connected to the first drilling unit or the second drilling unit.

9. The angle steel drilling equipment according to claim 1, characterized in that, The first drilling unit and the second drilling unit are both composed of a slide, a multi-station turret drilling power head, and a drilling servo motor. The slide is slidably connected to the first slide plate and the second slide plate in directions perpendicular to the A and B surfaces of the angle steel, respectively. The multi-station turret drilling power head is fixedly connected to the slide plate, and the drilling servo motor is connected to the multi-station turret drilling power head by transmission.

10. The angle steel drilling equipment according to claim 1, characterized in that, It also includes a distance limiting assembly for restricting the sliding of the first and second sliding plates along the width direction of the A or B surface of the angle steel, and a feed limiting assembly for restricting the sliding of the first drilling unit and the second drilling unit along the directions perpendicular to the A and B surfaces of the angle steel, respectively.

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