Angle steel drilling production line based on power head walking

Abstract

The angle steel drilling production line based on power head walking comprises a fixing mechanism and a drilling mechanism, the fixing mechanism comprises first electric sliding rails which are symmetrically arranged, electric sliding arms are installed on the first electric sliding rails in a sliding mode, U-shaped seats are rotatably installed at the ends of the electric sliding arms, the U-shaped seats are connected with a material fixing seat, and the material fixing seat is connected with the drilling mechanism. A right-angle supporting plate is arranged on the material fixing seat, a side clamping plate and an upper clamping plate are slidably mounted on the outer side of the right-angle supporting plate, and the drilling mechanism comprises second electric sliding rails which are symmetrically arranged; the right-angle supporting plate is matched with the inner angle of the angle steel and is matched with the pneumatic clamping plate, so that the angle steel drilling machine can quickly adapt to the angle steel with different lengths and different placement angles, the universality is high, three-axis high-precision drilling is realized, the drilling machine head is driven by an X-axis, Y-axis and Z-axis electric sliding rail system, the positioning precision is high, the moving speed is high, and the working efficiency is high. And continuous and efficient machining of complex hole position patterns can be achieved.

Description

Technical Field

[0001] This invention relates to the field of metal profile processing equipment technology, and in particular to an angle steel drilling production line based on a power head travel mechanism. Background Technology

[0002] Angle steel is a structural profile widely used in construction, machinery, power, communications and other fields. It often needs to be drilled for bolt connection or installation of accessories.

[0003] Traditional processing methods mainly rely on manual marking, manual clamping, and drilling one hole at a time using bench drills or radial drilling machines. These methods have the following prominent problems: low processing efficiency, high labor intensity, and difficulty in meeting the needs of mass production; hole position accuracy depends on the operator's experience, resulting in poor consistency and affecting assembly quality; angle steel has various sizes and specifications, traditional fixtures have poor versatility, and the adjustment time for changing types is long; long angle steel is difficult to handle, has unstable positioning, and is prone to drilling deviation. Summary of the Invention

[0004] This invention addresses the technical shortcomings of existing angle steel drilling equipment in mass production, such as poor clamping adaptability, unstable positioning reference, limited drilling accuracy, low automation level, and cumbersome changeover adjustments. It provides an angle steel drilling production line based on a power head that moves along its path. This production line integrates an adjustable-spacing double-sided fixing mechanism with a three-axis linkage high-precision drilling mechanism, combined with contour-following support and a bidirectional pneumatic clamping structure, to achieve rapid clamping, stable positioning, and continuous drilling of angle steels of different lengths and cross-sectional orientations.

[0005] This invention provides a drilling production line for angle steel based on a power head, including a fixing mechanism and a drilling mechanism. The fixing mechanism includes a first electric slide rail symmetrically arranged on both sides of the production line, extending along the X-axis, on which an electric slide arm is slidably mounted; a U-shaped seat is rotatably mounted at the end of the electric slide arm, the U-shaped seat being connected to the electric slide arm via a bearing structure and fixedly connected to a material holder; a right-angle support plate is provided on the material holder, the inner angle of the right-angle support plate being 90 degrees, its shape perfectly matching the inner angle of a standard angle steel, used to support the two mutually perpendicular flanges of the angle steel; a side clamping plate and an upper clamping plate are slidably mounted on the outer side of the right-angle support plate, the side clamping plate moving horizontally to clamp the inner side of the vertical flange of the angle steel, and the upper clamping plate moving vertically to press the upper surface of the horizontal flange of the angle steel.

[0006] Furthermore, a first motor is installed on the electric sliding arm. The output shaft of the first motor is connected to the U-shaped seat through a coupling or gear pair, which drives the U-shaped seat to rotate around a rotation axis perpendicular to the plane of the solid material seat, thereby driving the solid material seat and the angle steel it carries to rotate as a whole. This allows the two flanges of the angle steel to switch between a horizontal-vertical posture and a vertical-horizontal posture to adapt to different drilling process requirements or different material placement directions.

[0007] Furthermore, the solid material base is provided with a horizontally extending groove that penetrates the side wall of the solid material base; a connecting arm is slidably fitted inside the groove, one end of the connecting arm is fixedly connected to the side clamping plate, and the other end extends out of the solid material base and is hinged to the piston rod end of the first pneumatic cylinder; the first pneumatic cylinder is horizontally installed on the outer side wall of the solid material base, its cylinder body is fixed, and the extension and retraction direction of the piston rod is consistent with the extension direction of the groove; when the first pneumatic cylinder extends, it pushes the connecting arm to move inward along the groove, causing the side clamping plate to apply a horizontal clamping force from the inside of the vertical flange of the angle steel, pressing the angle steel onto the vertical surface of the right-angle support plate.

[0008] Furthermore, a second pneumatic cylinder is vertically mounted on the top of the solid base. The cylinder body of the second pneumatic cylinder is fixed to the upper end face of the solid base, and its piston rod extends downward and is fixedly connected to the upper clamping plate. When the second pneumatic cylinder extends, it drives the upper clamping plate to move downward in the vertical direction, pressing the upper surface of the horizontal flange of the angle steel. Together with the side clamping plate, it forms a constraint on two degrees of freedom of the angle steel. With the two contact surfaces provided by the right-angle support plate, it restricts the translation of the angle steel in the X, Y, and Z directions and the rotation around the X and Y axes, retaining only the rotational degree of freedom around the Z axis. This degree of freedom is actively controlled by the first motor, thereby achieving complete constraint or release on demand in the six degrees of freedom.

[0009] Furthermore, polyurethane buffer pads are fixedly installed on the inner surfaces of both the side clamping plate and the upper clamping plate. The thickness of the polyurethane buffer pads is 3mm to 8mm, the hardness is Shore A 70 to 90, and the surface is flat without any protruding structures. During the clamping process, the buffer pads are in direct contact with the surface of the angle steel. Through the elastic deformation of the material, the local stress concentration is absorbed, preventing indentations, scratches or plastic deformation from occurring on the surface of the angle steel. At the same time, a sufficient coefficient of friction is maintained to transmit the clamping force.

[0010] Furthermore, both support surfaces of the right-angle support plate are provided with anti-slip patterns. The anti-slip patterns are straight grooves extending along the length of the angle steel, with a groove depth of 0.3mm to 0.8mm and a groove spacing of 2mm to 5mm. The anti-slip patterns increase the static friction coefficient between the angle steel and the support surface, resisting the slippage tendency caused by cutting force during drilling, providing a stable machining reference surface for the drilling head, and avoiding hole position displacement or hole diameter ellipticization caused by workpiece micro-movement.

[0011] The drilling mechanism includes second electric slide rails symmetrically arranged on both sides of the production line. The second electric slide rails extend along the X-axis and have electric slide beams slidably mounted on them. The electric slide beams span above the fixed mechanism, and their two ends are slidably connected to the second electric slide rails on both sides. A third electric slide rail is mounted on the electric slide beam. The third electric slide rail extends along the Y-axis and has an electric slide block slidably mounted on it. The electric slide block has a guide groove that slides with a fourth electric slide rail. The fourth electric slide rail is vertically arranged along the Z-axis and has a bracket fixedly mounted on it. The bracket is a rigid metal frame structure, and a drilling head is fixedly mounted on its lower end. The drilling head includes a spindle motor, a reduction mechanism, and a drill chuck for mounting standard twist drills or carbide drill bits.

[0012] Furthermore, the first electric slide rail is driven by a servo motor and a ball screw to achieve precise movement of the electric slide arm along the X-axis, used to adjust the distance between the left and right fixed mechanisms to accommodate angle steel workpieces of different lengths; the second electric slide rail is driven by an independent servo motor to control the electric slide beam to move along the X-axis, so that the drilling head is aligned with the X coordinate of the target hole; the third electric slide rail is driven by another servo motor to control the electric slide block to move along the Y-axis, achieving Y-coordinate positioning; the fourth electric slide rail is driven by a fourth servo motor, and through ball screw or synchronous belt transmission, controls the support and drilling head to rise and fall along the Z-axis, completing the drilling feed and retraction actions; all four electric slide rail systems are controlled by the same CNC system, forming a complete XYZ three-axis linkage drilling motion platform, with a repeatability of each axis of not less than ±0.02mm.

[0013] Specifically, the fixing mechanism and the drilling mechanism are spatially independent. The fixing mechanism is located in the bottom working area of ​​the production line, and the drilling mechanism is suspended above it. There is no mechanical interference between the two during movement. After the angle steel is placed on the right-angle support plates of the two sets of fixed bases, the electric sliding arm is moved inward by the first electric slide rail, accurately supporting both ends of the angle steel. Subsequently, the first and second pneumatic cylinders act sequentially to complete lateral and upward clamping. If the initial placement direction of the angle steel does not meet the drilling requirements, the first motor is activated to drive the U-shaped base to rotate 90 degrees, thus aligning the angle steel... Flange attitude switching; after the drilling program starts, the second, third and fourth electric slide rails work together to guide the drilling head to move sequentially to the coordinates of each preset hole position, executing S1: X-axis positioning, S2: Y-axis positioning, S3: Z-axis rapid traverse to the workpiece surface, S4: spindle start and drilling at the set feed speed on the Z-axis, S5: Z-axis tool retraction, S6: move to the next hole position, and repeating the cycle until all holes are machined; after machining is completed, the pneumatic cylinder resets, the clamping plate is released, and the electric sliding arm can retract outward to leave operating space for unloading.

[0014] The beneficial effects of this invention are: The clamping system has multi-dimensional adaptive capabilities: the distance between the two sets of fixing mechanisms can be adjusted by the first electric slide rail to adapt to angle steels of different lengths; the U-shaped seat can be rotated by the first motor to switch the flange orientation of the angle steel; the contour structure of the right-angle support plate matches the inner angle of the angle steel to provide a stable support benchmark; the side clamping plate and the upper clamping plate can be driven by the first pneumatic cylinder and the second pneumatic cylinder respectively to implement bidirectional clamping, so as to realize the fast and reliable clamping of angle steels of any specification without the need to change special clamps.

[0015] The drilling motion system achieves high-precision three-axis linkage: the drilling head is driven by an XYZ three-axis system consisting of a second electric slide rail, a third electric slide rail, and a fourth electric slide rail. Each axis uses a servo motor and a high-precision ball screw drive. The position feedback is controlled by a closed-loop encoder to ensure that the hole position coordinate positioning error does not exceed ±0.05mm. It supports automatic processing of arbitrarily distributed hole patterns without manual intervention.

[0016] The integrity of the workpiece surface is effectively protected: the polyurethane buffer pads set on the inner sides of the side clamping plate and the upper clamping plate form an elastic contact interface during the clamping process, avoiding direct metal-to-metal compression; the anti-slip texture on the surface of the right-angle support plate provides sufficient friction without damaging the bottom surface of the angle steel, meeting the requirements of subsequent spraying or galvanizing processes that require surface quality.

[0017] The entire process is automated: from angle steel feeding, spacing adaptive adjustment, posture rotation, bidirectional pneumatic clamping, three-axis drilling to unloading, all processes are automatically executed by the CNC system according to the preset program. A single clamping can complete the processing of all holes of the entire angle steel, significantly reducing manual operation links and making it suitable for continuous and batch production scenarios.

[0018] The equipment has a reasonable structural layout and is easy to maintain: the fixing mechanism and the drilling mechanism are located in separate upper and lower spaces, without obstructing each other, which makes it easy for operators to observe the status of the workpiece and perform loading and unloading operations; each electric slide rail is modularly designed, and pneumatic components are centrally arranged, making fault points easy to identify. Daily cleaning and maintenance can be carried out locally without stopping the machine, improving the availability of the equipment.

[0019] In summary, this invention organically integrates an electrically driven adjustable-spacing clamping unit, a motor-driven angle steel posture rotation mechanism, a contour support and pneumatic bidirectional clamping assembly, and a high-precision three-axis linkage drilling power head to construct a compact, precisely controlled, highly adaptable, and fully automated angle steel drilling production line. This invention solves multiple technical bottlenecks in the versatility, precision, efficiency, and automation of traditional equipment, and is suitable for the efficient processing of angle steel components in fields such as building steel structures, power transmission towers, communication base station supports, and mechanical equipment frames. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first structure of the fixing mechanism of the present invention; Figure 3 This is a schematic diagram of the second structure of the fixing mechanism of the present invention; Figure 4 This is a side view of the fixing mechanism of the present invention; Figure 5 This is a schematic diagram of the drilling mechanism of the present invention.

[0021] Legend: 1. Fixing mechanism; 2. Drilling mechanism; 3. First electric slide rail; 4. Electric slide arm; 5. U-shaped seat; 6. Material fixing seat; 7. First motor; 8. Right-angle support plate; 9. Slide groove; 10. Side clamping plate; 11. Connecting arm; 12. First pneumatic cylinder; 13. Second pneumatic cylinder; 14. Upper clamping plate; 15. Second electric slide rail; 16. Electric slide beam; 17. Third electric slide rail; 18. Electric slide seat; 19. Fourth electric slide rail; 20. Bracket; 21. Drilling head. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Specific implementation examples are given below.

[0024] See Figures 1 to 5 As shown, the present invention provides an angle steel drilling production line based on a power head, the overall structure of which consists of two main parts: a fixing mechanism 1 and a drilling mechanism 2. The fixing mechanism 1 is symmetrically arranged on both sides of the production line and is used to support, position and clamp the angle steel to be processed. The drilling mechanism 2 spans above the fixing mechanism 1 and achieves high-precision drilling operations through three-axis linkage. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings and the reference numerals of each component. like Figure 1 and Figure 2As shown, the fixing mechanism 1 includes a symmetrically arranged first electric slide rail 3, which extends horizontally along the X-axis and is fixedly installed on the equipment base. An electric slide arm 4 is slidably installed on the first electric slide rail 3. The electric slide arm 4 can move precisely along the X-axis under the drive of a servo motor to adjust the distance between the left and right fixed units, thereby adapting to angle steel workpieces of different lengths. A U-shaped seat 5 is rotatably installed at the end of the electric slide arm 4. The U-shaped seat 5 is connected to the electric slide arm 4 through a bearing structure and is fixedly connected to the fixed material seat 6. To achieve the angle steel posture adjustment, a first motor 7 is installed on the electric slide arm 4. The output shaft of the first motor 7 is connected to the U-shaped seat 5 through a coupling or gear pair, which can drive the U-shaped seat 5 to rotate around a rotation axis perpendicular to the plane of the fixed material seat 6, thereby driving the fixed material seat 6 and the angle steel it carries to rotate 90 degrees as a whole, so that the two flanges of the angle steel can switch between horizontal-vertical and vertical-horizontal to meet different drilling process requirements or adapt to different material placement directions. like Figure 2 , Figure 3 and Figure 4As shown, the solid base 6 is provided with a right-angle support plate 8. The inner angle of the right-angle support plate 8 is 90 degrees, and its shape perfectly matches the inner angle of the standard angle steel. It is used to support the two mutually perpendicular flanges of the angle steel. Both support surfaces of the right-angle support plate 8 are provided with anti-slip patterns. The anti-slip patterns are straight grooves extending along the length of the angle steel. The groove depth is 0.3mm to 0.8mm, and the groove spacing is 2mm to 5mm. This effectively increases the static friction coefficient between the angle steel and the support surface and prevents the angle steel from slipping due to cutting force during drilling. Side clamping plates 10 and upper clamping plates 14 are slidably installed on the outside of the right-angle support plate 8. The side clamping plates 10 are used to apply horizontal clamping force from the inside of the vertical flange of the angle steel, and the upper clamping plates 14 are used to press the upper surface of the horizontal flange of the angle steel from above. To realize the horizontal movement of the side clamping plates 10, the solid base 6 is provided with a horizontally extending groove 9 that penetrates the solid base. A connecting arm 11 is slidably fitted into the slide groove 9 on the side wall of the base 6. One end of the connecting arm 11 is fixedly connected to the side clamping plate 10, and the other end extends out of the outer side of the base 6 and is hinged to the piston rod end of the first pneumatic cylinder 12. The first pneumatic cylinder 12 is horizontally installed on the outer side wall of the base 6, with its cylinder body fixed and the piston rod extending in the same direction as the slide groove 9. When the first pneumatic cylinder 12 extends, it pushes the connecting arm 11 to move inward along the slide groove 9, causing the side clamping plate 10 to press the angle steel onto the vertical surface of the right-angle support plate 8. At the same time, a second pneumatic cylinder 13 is vertically installed on the top of the base 6. The piston rod of the second pneumatic cylinder 13 extends downward and is fixedly connected to the upper clamping plate 14. When the second pneumatic cylinder 13 extends, it drives the upper clamping plate 14 to press down vertically, pressing the upper surface of the horizontal flange of the angle steel. Polyurethane buffer pads with a thickness of 3mm to 8mm and a hardness of Shore A are fixedly installed on the inner surfaces of both the side clamping plate 10 and the upper clamping plate 14. 70 to 90, with a flat surface without protrusions, absorbs local stress concentration through the elastic deformation of the material during the clamping process, preventing indentations, scratches or plastic deformation on the surface of the angle steel, while maintaining a sufficient coefficient of friction to transmit clamping force; like Figure 1 and Figure 5 As shown, the drilling mechanism 2 includes second electric slide rails 15 symmetrically arranged on both sides of the production line. The second electric slide rails 15 extend along the X-axis direction, and an electric slide beam 16 is slidably mounted on them. The electric slide beam 16 spans above the fixed mechanism 1, and its two ends are slidably connected to the second electric slide rails 15 on both sides respectively. A third electric slide rail 17 is mounted on the electric slide beam 16. The third electric slide rail 17 extends along the Y-axis direction, and an electric slide block 18 is slidably mounted on it. The electric slide block 18 is provided with a guide groove, which slides and engages with a fourth electric slide rail 19. The fourth electric slide rail 19 is vertically arranged along the Z-axis direction, and a bracket 20 is fixedly mounted on it. The bracket 20 is a rigid metal frame structure, and a drilling head 21 is fixedly mounted at its lower end. The drilling head 21 includes a spindle motor, a reduction mechanism, and a drill chuck, which is used to install a standard twist drill or a carbide drill bit. During operation, the operator or loading robot places the angle steel onto the right-angle support plates 8 of the two sets of fixed bases 6. The control system drives the two electric sliding arms 4 to move inward synchronously along the first electric slide rail 3 according to the length information of the angle steel until both ends of the angle steel are accurately supported on the right-angle support plates 8. Then, the first pneumatic cylinder 12 is activated, pushing the connecting arm 11 to move inward along the slide groove 9, driving the side clamping plate 10 to apply a horizontal clamping force from the inside of the vertical flange of the angle steel. Immediately afterwards, the second pneumatic cylinder 13 is activated, driving the upper clamping plate 14 to press down vertically, pressing the upper surface of the horizontal flange of the angle steel, thereby completing the bidirectional clamping. At this time, the angle steel is restricted to translation in the X, Y, and Z directions and rotation around the X and Y axes, retaining only the rotational degree of freedom around the Z axis, which is actively controlled by the first motor 7. If the initial placement direction of the angle steel does not meet the drilling requirements, the first motor 7 is activated to drive the U-shaped base 5 to rotate 90 degrees, so that the angle steel flange attitude is switched to the required direction. After the drilling program is started, the CNC system controls the second electric slide rail 15, the third electric slide rail 17, and the fourth electric slide rail 19 to work together, guiding the drilling head 21 to perform the following steps in sequence: S1: The second electric slide rail 15 drives the electric slide beam 16 to move along the X-axis, so that the drilling head 21 is aligned with the X coordinate of the target hole position; S2: The third electric slide rail 17 drives the electric slide block 18 to move along the Y-axis, achieving precise Y-coordinate positioning; S3: The fourth electric slide rail 19 drives the support 20 and the drilling head 21 to descend rapidly to near the working position. S4: The main spindle of the drilling head 21 starts, and the fourth electric slide rail 19 drives the drill bit to complete the drilling at the set feed speed; S5: After drilling is completed, the drill bit retracts to a safe height; S6: Move to the next preset hole position and repeat the above process until all holes are processed; Each electric slide rail system is controlled by the same CNC system, using servo motors and high-precision ball screws for transmission. The position feedback is controlled by a closed-loop encoder to ensure that the hole position coordinate positioning error does not exceed ±0.05mm, and supports automatic processing of arbitrarily distributed hole group patterns; After processing, the first pneumatic cylinder 12 and the second pneumatic cylinder 13 retract synchronously, releasing the angle steel; the electric sliding arm 4 can retract outward to a spacious position, leaving operating space for unloading; the entire process requires no manual intervention and is suitable for continuous and batch production scenarios; the fixing mechanism 1 and the drilling mechanism 2 are independent of each other in spatial layout. The fixing mechanism 1 is located in the working area at the bottom of the production line, and the drilling mechanism 2 is suspended above it. There is no mechanical interference between the two during movement, which makes it easy for operators to observe the status of the workpiece and perform loading and unloading operations; each electric sliding rail is modularly designed, pneumatic components are centrally arranged, fault points are easy to identify, and daily cleaning and maintenance can be carried out locally without stopping the machine, improving equipment availability; In summary, this invention organically integrates an electrically driven adjustable-spacing clamping unit, a motor-driven angle steel posture rotation mechanism, a contour support and pneumatic bidirectional clamping assembly, and a high-precision three-axis linkage drilling power head to construct a compact, precisely controlled, highly adaptable, and fully automated angle steel drilling production line. This invention solves multiple technical bottlenecks in the versatility, precision, efficiency, and automation of traditional equipment, and is suitable for the efficient processing of angle steel components in fields such as building steel structures, power transmission towers, communication base station supports, and mechanical equipment frames.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drilling production line for angle steel based on a power head, characterized in that, The system includes a fixing mechanism (1) and a drilling mechanism (2). The fixing mechanism (1) includes a first electric slide rail (3) symmetrically arranged on both sides of the production line. The first electric slide rail (3) extends along the X-axis and an electric slide arm (4) is slidably mounted on it. A U-shaped seat (5) is rotatably mounted on the end of the electric slide arm (4). The U-shaped seat (5) is connected to the electric slide arm (4) through a bearing structure and is fixedly connected to a material holder (6). A right-angle support plate (8) is provided on the material holder (6). The inner angle of the right-angle support plate (8) is 90 degrees and is used to support the two mutually perpendicular flanges of the angle steel. A side clamping plate (10) and an upper clamping plate (14) are slidably mounted on the outer side of the right-angle support plate (8). The side clamping plate (10) moves horizontally to clamp the inner side of the vertical flange of the angle steel, and the upper clamping plate (14) moves vertically to clamp the inner side of the vertical flange of the angle steel. The upper surface of the horizontal flange of the clamping angle steel; the drilling mechanism (2) includes a second electric slide rail (15) symmetrically arranged on both sides of the production line, the second electric slide rail (15) extends along the X-axis direction, and an electric slide beam (16) is slidably installed on it; the electric slide beam (16) spans across the fixed mechanism (1), and its two ends are slidably connected to the second electric slide rail (15) on both sides respectively; a third electric slide rail (17) is installed on the electric slide beam (16), the third electric slide rail (17) extends along the Y-axis direction, and an electric slide seat (18) is slidably installed on it; the electric slide seat (18) is provided with a guide groove, which slides in cooperation with the fourth electric slide rail (19), the fourth electric slide rail (19) is vertically arranged along the Z-axis direction, and a bracket (20) is fixedly installed on it; a drilling head (21) is fixedly installed at the lower end of the bracket (20).

2. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The electric sliding arm (4) is equipped with a first motor (7), the output shaft of which is connected to the U-shaped seat (5) via a coupling or gear pair, and is used to drive the U-shaped seat (5) to rotate around a rotation axis perpendicular to the plane of the solid material seat (6).

3. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The solid material seat (6) is provided with a horizontally extending groove (9) that penetrates the side wall of the solid material seat (6). A connecting arm (11) is slidably fitted inside the groove (9). One end of the connecting arm (11) is fixedly connected to the side clamp (10), and the other end extends out of the solid material seat (6) and is hinged to the piston rod end of the first pneumatic cylinder (12). The first pneumatic cylinder (12) is horizontally installed on the outer side wall of the solid material seat (6), and its cylinder body is fixed. The extension and retraction direction of the piston rod is consistent with the extension direction of the groove (9).

4. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, A second pneumatic cylinder (13) is vertically installed on the top of the solid material seat (6). The cylinder body of the second pneumatic cylinder (13) is fixed to the upper end face of the solid material seat (6), and its piston rod extends downward and is fixedly connected to the upper clamping plate (14).

5. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The inner surfaces of the side clamping plate (10) and the upper clamping plate (14) are both fixedly equipped with polyurethane buffer pads. The thickness of the polyurethane buffer pads is 3mm to 8mm, the hardness is Shore A 70 to 90, and the surface is flat and without protrusions.

6. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The right-angle support plate (8) has anti-slip patterns on both support surfaces. The anti-slip patterns are straight grooves extending along the length of the angle steel. The groove depth is 0.3mm to 0.8mm and the groove spacing is 2mm to 5mm.

7. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The first electric slide rail (3) is driven by a servo motor to drive the ball screw to move the electric slide arm (4) along the X-axis; the second electric slide rail (15), the third electric slide rail (17) and the fourth electric slide rail (19) are driven by independent servo motors respectively, forming an XYZ three-axis linkage system, and the repeatability of each axis is not less than ±0.02mm.

8. The angle steel drilling production line based on power head travel as described in claim 7, characterized in that, The fourth electric slide rail (19) is driven by a ball screw or synchronous belt to control the support (20) and the drilling head (21) to rise and fall along the Z-axis.

9. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The fixing mechanism (1) is located in the working area at the bottom of the production line, and the drilling mechanism (2) is suspended above the fixing mechanism (1). The two do not interfere with each other during movement.

10. The angle steel drilling production line based on power head travel as described in claim 1, characterized in that, The drilling head (21) includes a spindle motor, a reduction mechanism and a drill chuck.

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