A positioning hole drilling device for fabricated steel structure prefabricated parts

Abstract

The application relates to a drilling device for positioning holes of an assembled steel structure prefabricated part, which comprises a drilling platform mechanism and a positioning mechanism, the drilling platform mechanism comprises an adjusting frame, a point finding assembly is fixed on the adjusting frame, the point finding assembly comprises a laser signal receiver, first bottom plates are fixed at the two ends of the adjusting frame, a moving frame is slidably arranged in the adjusting frame, the top end of the moving frame is fixed with one end of four supporting rods, the other end of each supporting rod is fixed with a top plate, a guide light axis parallel to the supporting rods is fixed between the four supporting rods, one end of the guide light axis is fixed on the top plate and the other end is fixed on the moving frame, the large steel material is punched by cooperation of the drilling platform mechanism and the positioning mechanism, the punching position can be found, the punching precision is improved, especially for some steel materials with an arc, the positioning and punching work can be conveniently and accurately completed, and the punching efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment, specifically a drilling device for positioning holes in prefabricated steel structure components. Background Technology

[0002] Prefabricated steel structure buildings refer to buildings whose structural system is composed of steel components. Common applications of steel structures include factories, carports, and bridges. The main methods of connecting the steel components between different parts of the steel structure are screw connections and welding. For steel frame structures with screw connections, screw holes are drilled into the prefabricated steel. However, due to the large volume of the prefabricated steel, traditional lathes cannot process it. The usual method for drilling is to manually measure, determine the drilling position, mark it, and then drill the hole at the marked point. This is not only inefficient but also has poor accuracy, especially for drilling holes in the curved surfaces of some curved steel frames, where it is difficult to accurately find the drilling position.

[0003] A positioning and drilling device for steel structure installation is disclosed in application number CN202122478216.7. This device automatically clamps the steel structure, replacing the traditional manual operation, and then positions and drills the steel structure. However, this device can only position and drill small steel structures and cannot position and drill large curved steel structures. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling device for positioning holes in prefabricated steel structure components to solve the above-mentioned problems.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a drilling device for positioning holes of prefabricated steel structure components, comprising a drilling platform mechanism and a positioning mechanism;

[0006] The drilling platform mechanism includes an adjustment frame, on which a point-finding component is fixed. The point-finding component includes a laser signal receiver. A first base plate is fixed to both ends of the adjustment frame. A movable frame is slidably mounted inside the adjustment frame. The top of the movable frame is fixed to one end of four support rods, and the other end of each support rod is fixed to a top plate. A guide optical axis parallel to the support rods is fixed between the four support rods. One end of the guide optical axis is fixed to the top plate, and the other end is fixed to the movable frame. A lifting platform is slidably mounted on the guide optical axis. A drill bit drive motor is fixed to the lifting platform. A drill bit chuck is fixedly connected to the motor shaft of the drill bit drive motor, and a drill bit is mounted on the drill bit chuck. A lifting rack is fixedly connected to one side of the lifting platform. The lifting rack meshes with a first gear. The first gear is rotatably connected to two support rods via a first rotating shaft. Linkage assemblies are provided on both sides of the top plate, and each linkage assembly controls the lifting of a magnet.

[0007] Two sliding support shafts are fixed on both sides of each first base plate in the drilling platform mechanism. Each sliding support shaft on each side of the first base plate is slidably connected to a slide block. A fastening plate is fixed on one side of the slide block. Each fastening plate has an axle fixed on the side near the first base plate. A roller is rotatably mounted on the axle. A first tension spring connecting seat and a first rack are fixed on the slide block. Two first racks on both sides of the same first base plate mesh with a second gear rotatably mounted on the first base plate. A second tension spring connecting seat is also fixed on the first rack. The second tension spring connecting seat is connected to the first tension spring connecting seat fixed on the slide block on the other side of the first base plate by a tension spring.

[0008] The positioning mechanism includes a first clamping assembly and a second clamping assembly with identical structures. Each clamping assembly includes a second base plate, and a clamping and fixing assembly is fixed to one side of the second base plate. Two measuring belts are connected between the first clamping assembly and the second clamping assembly. Two winding drums are rotatably mounted on the first clamping assembly. The winding drums are fixed on a second rotating shaft, and one end of the second rotating shaft is fixed to the motor shaft of a winding motor. The clamping and fixing assembly includes a support block, which is fixedly connected to the second base plate. The winding motor is fixed to the support block. Two clamping plates are provided on both sides of the support block and slide relative to it. A guide plate is provided on the clamping plate. The measuring belt passes through a hole in the guide plate. The guide plate on one side of the first clamping assembly is fixed to one end of the measuring belt. The measuring belt has a size scale, which starts from zero at the end where the measuring belt is fixed to the guide plate. A laser signal transmitter is slidably mounted on the measuring belt.

[0009] Preferably, the adjustment frame includes two perforated plates and two connecting strips. The two connecting strips connect and fix the two perforated plates. The side of the moving frame closest to one of the perforated plates is fixedly connected to one end of a first supporting optical axis. The first supporting optical axis is slidably connected to the perforated plate on that side. The other side of the moving frame is fixedly connected to one end of a threaded rod. An internally threaded knob is rotatably provided on the perforated plate on that side. The internally threaded knob is threadedly connected to the threaded rod.

[0010] Preferably, the connecting rod assembly includes a pneumatic telescopic rod, one end of the cylinder of the pneumatic telescopic rod is hinged to the top plate, one end of the piston rod of the pneumatic telescopic rod is hinged to one end of the connecting rod, the other end of the connecting rod is fixedly connected to a sliding connecting rod, the sliding connecting rod passes through the first base plate and is fixedly connected to the magnet at one end at the bottom of the first base plate, a support seat is fixed on the first base plate, a support roller is rotatably connected on the support seat, and the support roller can abut against the connecting rod.

[0011] Preferably, the point-finding assembly includes two first sliding rods fixed to a perforated plate on one side of the adjustment frame. A sliding seat is slidably connected to each first sliding rod. A first spring connects the sliding seat to the perforated plate. The sliding seat is fixedly connected to one end of each of the two second sliding rods. The second sliding rods are perpendicular to the first sliding rods. A slide platform is slidably connected to each second sliding rod. A second spring connects the slide platform to the sliding seat. A rotating frame is rotatably mounted on the slide platform. A fan-shaped prism is fixed to one side of the slide platform. The laser signal receiver is fixed to one end of the rotating frame. A weight is fixed to the end of the rotating frame opposite to the laser signal receiver.

[0012] Preferably, a rotating handle is fixed to one end of the first gear, and a drill bit drive motor is also connected to the top plate by a drill platform return spring.

[0013] Preferably, the clamping and fixing assembly in the positioning mechanism includes the support block, which is perpendicular to the second base plate. Second support optical axes are fixedly mounted on both sides of the support block, and clamping plates are slidably mounted on each of the second support optical axes. Each guide plate includes a first guide plate and a second guide plate, which are fixedly mounted on the clamping plates. Each clamping plate is fixedly connected to one end of a second rack near the support block and slidably connected to a second rack fixed on another clamping plate. Both second racks mesh with a third gear, which is fixed to one end of a third rotating shaft. The third rotating shaft is rotatably connected to the support block. A worm gear is fixed to the other end of the third rotating shaft, meshing with a worm. The worm is fixed to a fourth rotating shaft, which is rotatably connected to a support clamp. The support clamp is fixed to the support block, and a gripper control knob is fixed to the other end of the fourth rotating shaft.

[0014] Preferably, one end of the first support plate is fixed to the support block, a winding motor is fixed on the support block, the first support plate and the second base plate are also connected and fixed by a connecting strip, the support block is also fixedly connected to one end of the second support plate on both sides near the clamping plate, the other end of the second support plate is rotatably connected to one end of the guide roller, and the other end of the guide roller is rotatably connected to the second base plate.

[0015] Preferably, a controller is fixedly mounted on the top plate.

[0016] In summary, the present invention has the following beneficial effects: The present invention uses the drilling platform mechanism and the positioning mechanism to drill holes in large steel materials, which can find the drilling position and improve the drilling accuracy. In particular, for some curved steel materials, the present invention can conveniently and accurately complete the positioning and drilling operation, thereby improving the drilling efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the invention 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 the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 This is a top view of the drilling rig mechanism in an embodiment of the present invention;

[0020] Figure 3 This is an embodiment of the present invention. Figure 2 Sectional view along the AA direction;

[0021] Figure 4 This is an isometric view of the drilling rig mechanism in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the point-finding component in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the first clamping assembly in an embodiment of the present invention;

[0024] Figure 7 This is an embodiment of the present invention. Figure 6 Cross-sectional view along the BB direction;

[0025] Figure 8 This is an embodiment of the present invention. Figure 6 Sectional view along the CC direction;

[0026] Figure 9 This is an embodiment of the present invention. Figure 6 Cross-sectional view along the DD direction;

[0027] Figure 10 This is an embodiment of the present invention. Figure 6 Top view;

[0028] Figure 11 This is an axonometric view of the sector-shaped prism in an embodiment of the present invention.

[0029] In the diagram: 11. First base plate; 12. Adjusting frame; 13. Support rod; 14. First support optical axis; 15. Lifting platform; 16. Top plate; 17. Moving frame; 18. Adhesive plate; 19. Slide seat; 20. Sliding support shaft; 21. First rack; 22. Second tension spring connecting seat; 23. Tension spring; 24. First tension spring connecting seat; 25. Second gear; 26. Support roller; 27. Support seat; 28. Connecting rod; 29. ​​Pneumatic telescopic rod; 30. Guide optical axis; 31. Controller; 32. Rotating handle; 33. Magnet; 34. Drill bit drive motor; 35. Lifting rack; 36. First rotating shaft; 37. First gear; 38. Sliding connecting rod; 39. Wheel axle; 40. Roller; 41. Slide table; 42. Weight; 43. First sliding rod; 44. Rotating frame; 45. Second sliding rod; 46. 47. Spring; 48. Drill bit chuck; 50. Drill bit; 51. Second base plate; 52. Support block; 53. Clamping plate; 54. Second support optical axis; 55. First guide plate; 56. Second guide plate; 57. First support plate; 58. Clamping jaw control knob; 59. Second support plate; 60. Guide roller; 61. Rewinding motor; 62. Connecting bar; 63. Second rotating shaft; 64. Winding drum; 66. Fourth rotating shaft; 67. Worm; 68. Worm wheel; 69. Third rotating shaft; 70. Drill platform return spring; 71. Internal thread knob; 72. Threaded rod; 73. Measuring belt; 74. Sliding seat; 75. Second spring; 76. Sector prism; 77. Laser signal receiver; 78. Laser signal transmitter; 79. Third gear; 80. Second rack; 81. Support clamp; 90. Drill platform mechanism; 100. Positioning mechanism. Detailed Implementation

[0030] Combined with appendix Figures 1-11 The aforementioned prefabricated steel structure positioning hole drilling device includes a drilling platform mechanism 90 and a positioning mechanism 100.

[0031] The drilling platform mechanism 90 includes an adjusting frame 12, on which a point-finding component is fixed. The point-finding component includes a laser signal receiver 77. A first base plate 11 is fixed to both ends of the adjusting frame 12. A movable frame 17 is slidably provided inside the adjusting frame 12. The top end of the movable frame 17 is fixed to one end of four support rods 13, and the other end of each support rod 13 is fixed to a top plate 16. A guide optical axis 30 parallel to the support rods 13 is fixed between the four support rods 13. One end of the guide optical axis 30 is fixed to the top plate 16, and the other end is fixed to... On the movable frame 17, a lifting platform 15 is slidably mounted on the guide optical axis 30. A drill bit drive motor 34 is fixed on the lifting platform 15. A drill bit chuck 47 is fixedly connected to the motor shaft of the drill bit drive motor 34. A drill bit 48 is mounted on the drill bit chuck 47. One side of the lifting platform 15 is fixedly connected to a lifting rack 35. The lifting rack 35 meshes with a first gear 37. The first gear 37 is rotatably connected to two support rods 13 through a first rotating shaft 36. Linkage assemblies are provided on both sides of the top plate 16. Each linkage assembly controls the lifting of a magnet 33.

[0032] Two sliding support shafts 20 are fixed on both sides of each first base plate 11 in the drilling mechanism 90. The sliding support shafts 20 on each side of the first base plate 11 are slidably connected to the slide block 19. A fastening plate 18 is fixed on one side of the slide block 19. Each fastening plate 18 has a wheel axle 39 fixed on the side close to the first base plate 11. A roller 40 is rotatably mounted on the wheel axle 39. A first tension spring connecting seat 24 and a first rack 21 are fixed on the slide block 19. The two first racks 21 on both sides of the same first base plate 11 mesh with a second gear 25 rotatably mounted on the first base plate 11. A second tension spring connecting seat 22 is also fixed on the first rack 21. The second tension spring connecting seat 22 is connected to the first tension spring connecting seat 24 fixed on the slide block 19 on the other side of the first base plate 11 by a tension spring 23.

[0033] The positioning mechanism 100 includes a first clamping assembly and a second clamping assembly with identical structures. Each clamping assembly includes a second base plate 50, and a clamping and fixing assembly is fixed to one side of the second base plate 50. Two measuring belts 73 are connected between the first clamping assembly and the second clamping assembly. Two winding drums 64 are rotatably mounted on the first clamping assembly. The winding drums 64 are fixed on a second rotating shaft 63, and one end of the second rotating shaft 63 is fixed to the motor shaft of the winding motor 61. The clamping and fixing assembly includes a support block 51, and the support block 51 is connected to... The second base plate 50 is fixedly connected, the winding motor 61 is fixed to the support block 51, and two clamping plates 52 are provided on both sides of the support block 51 and slide relative to it. A guide plate is provided on the clamping plate 52, and the measuring belt 73 passes through the hole on the guide plate. The guide plate on one side of the first clamping assembly is fixed to one end of the measuring belt 73. The measuring belt 73 is provided with a size scale, and the size scale on the measuring belt 73 starts from zero at the end where the measuring belt 73 is fixed to the guide plate. A laser signal transmitter 78 is slidably provided on the measuring belt 73.

[0034] Advantageously, the adjusting frame 12 includes two perforated plates and two connecting strips. The two connecting strips connect and fix the two perforated plates. The side of the moving frame 17 closest to one of the perforated plates is fixedly connected to one end of the first supporting optical axis 14. The first supporting optical axis 14 is slidably connected to the perforated plate on that side. The other side of the moving frame 17 is fixedly connected to one end of the threaded rod 72. An internally threaded knob 71 is rotatably provided on the perforated plate on that side. The internally threaded knob 71 is threadedly connected to the threaded rod 72.

[0035] Advantageously, the connecting rod assembly includes a pneumatic telescopic rod 29, one end of the cylinder of the pneumatic telescopic rod 29 is hinged to the top plate 16, one end of the piston rod of the pneumatic telescopic rod 29 is hinged to one end of the connecting rod 28, the other end of the connecting rod 28 is fixedly connected to a sliding connecting rod 38, the sliding connecting rod 38 passes through the first base plate 11 and is fixedly connected to the magnet 33 at one end at the bottom of the first base plate 11, a support seat 27 is fixed on the first base plate 11, a support roller 26 is rotatably connected to the support seat 27, and the support roller 26 can abut against the connecting rod 28.

[0036] Advantageously, the point-finding assembly includes two first sliding rods 43 fixed to a perforated plate on one side of the adjustment frame 12. A sliding seat 74 is slidably connected to the first sliding rod 43. A first spring 46 is connected between the sliding seat 74 and the perforated plate. The sliding seat 74 is fixedly connected to one end of two second sliding rods 45. The second sliding rods 45 are perpendicular to the first sliding rods 43. A slide table 41 is slidably connected to the second sliding rod 45. A second spring 75 is connected between the slide table 41 and the sliding seat 74. A rotating frame 44 is rotatably mounted on the slide table 41. A fan-shaped prism 76 is fixed to one side of the slide table 41. A laser signal receiver 77 is fixed to one end of the rotating frame 44. A weight 42 is fixed to the end of the rotating frame 44 opposite to the laser signal receiver 77.

[0037] Advantageously, a rotating handle 32 is fixed to one end of the first gear 37, and a drill bit drive motor 34 is also connected to the top plate 16 by a drill table return spring 70.

[0038] Advantageously, the clamping and fixing assembly in the positioning mechanism 100 includes the support block 51, which is perpendicular to the second base plate 50. Second support optical axes 53 are fixedly disposed on both sides of the support block 51, and clamping plates 52 are slidably disposed on each of the second support optical axes 53. Each guide plate includes a first guide plate 54 and a second guide plate 55, which are fixed to the clamping plate 52. Each clamping plate 52 is fixedly connected to one end of a second rack 80 on the side closest to the support block 51 and to the other end of the rack 80. The second rack 80 fixed on the clamping plate 52 is slidably connected, and both second racks 80 mesh with the third gear 79. The third gear 79 is fixed at one end of the third rotating shaft 69, which is rotatably connected to the support block 51. The other end of the third rotating shaft 69 is fixed with a worm gear 68, which meshes with a worm 67. The worm 67 is fixed on the fourth rotating shaft 66, which is rotatably connected to the support clamp 81. The support clamp 81 is fixed on the support block 51, and the other end of the fourth rotating shaft 66 is fixed with a gripper control knob 57.

[0039] Advantageously, one end of the first support plate 56 is fixed to the support block 51, and a winding motor 61 is fixed on the support block 51. The first support plate 56 and the second base plate 50 are also connected and fixed by a connecting strip 62. The support block 51 is also fixedly connected to one end of the second support plate 59 on both sides near the clamping plate 52. The other end of the second support plate 59 is rotatably connected to one end of the guide roller 60, and the other end of the guide roller 60 is rotatably connected to the second base plate 50.

[0040] Advantageously, a controller 31 is fixedly provided on the top plate 16.

[0041] How to use this invention:

[0042] In the initial state: the two clamping plates 52 in the clamping and fixing components of the first clamping assembly and the second clamping assembly are at their farthest distance; the laser signal transmitter 78 is attached to the first guide plate 54 of the first clamping assembly where one end of the measuring belt 73 is fixed; the pneumatic telescopic rod 29 in the drill platform mechanism 90 is in its maximum extension state; the magnet 33 is in its closest state to the first base plate 11; the slides 19 on both sides of the first base plate 11 are pressed against the first base plate 11 by the first spring 46 under the action of the tension spring 23; the second spring 75 is in its minimum compression state; the drill platform return tension spring 70 and tension spring 23 are in their minimum tension state; and the winding motor 61 and the drill bit drive motor 34 are in the stopped state.

[0043] The arc-shaped steel frame to be drilled is erected on the ground with its arch facing upwards. The second base plate 50 of the first clamping assembly is placed against the ground at one end of the steel frame. The support block 51 of the clamping and fixing assembly abuts against that section of the steel frame. The jaw control knob 57 is rotated, causing the fourth rotating shaft 66 to rotate. The fourth rotating shaft 66 rotates the worm gear 67, which in turn rotates the worm wheel 68. The worm wheel 68 rotates the third rotating shaft 69, which in turn rotates the third gear 79. The third gear 79 causes the two meshing second racks 80 to slide relative to each other. The second racks 80 cause the clamping plates 52 fixed to them to slide, bringing the two clamping plates 52 closer together and clamping one end of the steel structure. The winding motor 61 is started, causing the second rotating shaft 63 to rotate. The rotation of the shaft 63 drives the winding drum 64 to rotate, and the rotation of the winding drum 64 releases the measuring tape 73 wound on the winding drum 64. At this time, take the second clamp assembly and walk to the other end of the steel frame. When the length of the measuring tape 73 between the second clamp assembly and the first clamp assembly exceeds the steel frame, control the winding motor 61 to stop rotating. Place the second clamp assembly and the second base plate 50 on the ground and clamp them to the end of the steel frame. Control the winding motor 61 to reverse and tighten the measuring tape 73. Stop the rotation of the winding motor 61. The winding motor 61 is a self-locking motor, which can keep the measuring tape 73 taut after stopping. Slide the laser signal transmitter 78 on the measuring tape 73 to the designated position according to the scale on the measuring tape 73, and turn on the laser signal transmitter 78. The laser signal transmitter 78 emits a laser signal.

[0044] Install the drill platform mechanism 90 at one end near the first clamping assembly. Manually pry open the slide blocks 19 on both sides of the first base plate 11 in the drill platform mechanism 90. Place the rollers 40 along the edge of the steel frame. After releasing, the slide blocks 19 will automatically close to the side of the steel frame under the action of the tension spring 23, keeping the first base plate 11 in the middle position of the steel frame. Press the edge of the intersection of the two planes of the fan-shaped prism 76 in the point finding assembly against the surface of the steel frame where the hole needs to be drilled. Rotate the internal thread knob 71. The rotation of the internal thread knob 71 drives the thread rod 72 to move. The thread rod 72 drives the various parts fixed to the moving frame 17 to move together. Adjust the position of the drill bit in the width direction of the steel frame. After installing and adjusting the drill platform mechanism 90, hold the handle on the drill platform mechanism 90 to drive the drill platform mechanism 90 to move together. During the operation, the rotating frame 44 always remains vertical under the action of the weight 42. The laser signal receiver 77 fixed on the rotating frame 44 also always remains vertical. When the drill platform machine When the structure 90 advances above the laser signal transmitter 78 and the laser signal receiver 77 receives the signal from the laser signal transmitter 78, the controller 31 controls the pneumatic telescopic rod 29 to shorten rapidly. The magnet 33 attracts the steel and, after breaking free from the constraints of the pneumatic telescopic rod 29 and the connecting rod 28, quickly attaches to the steel frame and remains fixed there. The magnet 33, through the sliding connecting rod 38 and the fixing ring at the upper end of the sliding connecting rod 38, fixes the first base plate 11 to this position on the steel frame. At this point, drilling can begin. The drill bit drive motor 34 is started, which drives the drill bit chuck 47 and the drill bit 48 to rotate. The rotating handle 32 is turned, which drives the first gear 37 and the first rotating shaft 36 to rotate. The first rotating shaft 36 drives the lifting rack 35 and the parts fixed to the lifting rack 35 to move, ultimately driving the drill bit 48 to complete the drilling. After drilling one hole, the laser signal transmitter 78 is moved to the next position, and drilling can then be performed on other positions.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A drilling device for positioning holes in prefabricated steel structure components, comprising a drilling platform mechanism and a positioning mechanism, characterized in that: The drilling platform mechanism includes an adjustment frame, on which a point-finding component is fixed. The point-finding component includes a laser signal receiver. A first base plate is fixed to both ends of the adjustment frame. A movable frame is slidably mounted inside the adjustment frame. The top of the movable frame is fixed to one end of four support rods, and the other end of each support rod is fixed to a top plate. A guide optical axis parallel to the support rods is fixed between the four support rods. One end of the guide optical axis is fixed to the top plate, and the other end is fixed to the movable frame. A lifting platform is slidably mounted on the guide optical axis. A drill bit drive motor is fixed to the lifting platform. A drill bit chuck is fixedly connected to the motor shaft of the drill bit drive motor, and a drill bit is mounted on the drill bit chuck. A lifting rack is fixedly connected to one side of the lifting platform. The lifting rack meshes with a first gear. The first gear is rotatably connected to two support rods via a first rotating shaft. Linkage assemblies are provided on both sides of the top plate, and each linkage assembly controls the lifting of a magnet. Two sliding support shafts are fixed on both sides of each first base plate in the drilling platform mechanism. Each sliding support shaft on each side of the first base plate is slidably connected to a slide block. A fastening plate is fixed on one side of the slide block. Each fastening plate has an axle fixed on the side near the first base plate. A roller is rotatably mounted on the axle. A first tension spring connecting seat and a first rack are fixed on the slide block. Two first racks on both sides of the same first base plate mesh with a second gear rotatably mounted on the first base plate. A second tension spring connecting seat is also fixed on the first rack. The second tension spring connecting seat is connected to the first tension spring connecting seat fixed on the slide block on the other side of the first base plate by a tension spring. The positioning mechanism includes a first clamping assembly and a second clamping assembly with identical structures. Each clamping assembly includes a second base plate, and a clamping and fixing assembly is fixed to one side of the second base plate. Two measuring belts are connected between the first clamping assembly and the second clamping assembly. Two winding drums are rotatably mounted on the first clamping assembly. The winding drums are fixed on a second rotating shaft, and one end of the second rotating shaft is fixed to the motor shaft of a winding motor. The clamping and fixing assembly includes a support block, which is fixedly connected to the second base plate. The winding motor is fixed to the support block. Two clamping plates are provided on both sides of the support block and slide relative to it. A guide plate is provided on the clamping plate. The measuring belt passes through a hole in the guide plate. The guide plate on one side of the first clamping assembly is fixed to one end of the measuring belt. The measuring belt has a size scale, which starts from zero at the end where the measuring belt is fixed to the guide plate. A laser signal transmitter is slidably mounted on the measuring belt.

2. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: The adjustment frame includes two perforated plates and two connecting strips. The two connecting strips connect and fix the two perforated plates. The side of the moving frame closest to one of the perforated plates is fixedly connected to one end of a first supporting optical axis. The first supporting optical axis is slidably connected to the perforated plate on that side. The other side of the moving frame is fixedly connected to one end of a threaded rod. An internally threaded knob is rotatably provided on the perforated plate on that side. The internally threaded knob is threadedly connected to the threaded rod.

3. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: The linkage assembly includes a pneumatic telescopic rod, one end of the cylinder of the pneumatic telescopic rod is hinged to the top plate, one end of the piston rod of the pneumatic telescopic rod is hinged to one end of the connecting rod, the other end of the connecting rod is fixedly connected to a sliding connecting rod, the sliding connecting rod passes through the first base plate and is fixedly connected to the magnet at one end at the bottom of the first base plate, a support seat is fixed on the first base plate, and a support roller is rotatably connected to the support seat.

4. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: The point-finding assembly includes two first sliding rods fixed to a perforated plate on one side of the adjustment frame. A sliding seat is slidably connected to each first sliding rod. A first spring connects the sliding seat to the perforated plate. The sliding seat is fixedly connected to one end of each of the two second sliding rods. The second sliding rods are perpendicular to the first sliding rods. A sliding platform is slidably connected to each second sliding rod. A second spring connects the sliding platform to the sliding seat. A rotating frame is rotatably mounted on the sliding platform. A fan-shaped prism is fixed to one side of the sliding platform. The laser signal receiver is fixed to one end of the rotating frame. A weight is fixed to the end of the rotating frame opposite to the laser signal receiver.

5. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: A rotating handle is fixed to one end of the first gear, and a drill bit drive motor is also connected to the top plate by a drill platform return spring.

6. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: The clamping and fixing assembly in the positioning mechanism includes the support block, which is perpendicular to the second base plate. Second support optical axes are fixedly mounted on both sides of the support block, and clamping plates are slidably mounted on each of the second support optical axes. Each guide plate includes a first guide plate and a second guide plate, which are fixed to the clamping plates. Each clamping plate is fixedly connected to one end of a second rack near the support block and slidably connected to a second rack fixed to another clamping plate. Both second racks mesh with a third gear, which is fixed to one end of a third rotating shaft. The third rotating shaft is rotatably connected to the support block. A worm gear is fixed to the other end of the third rotating shaft, meshing with a worm. The worm is fixed to a fourth rotating shaft, which is rotatably connected to a support clamp. The support clamp is fixed to the support block, and a gripper control knob is fixed to the other end of the fourth rotating shaft.

7. A drilling device for positioning holes of prefabricated steel structure components according to claim 6, characterized in that: One end of the first support plate is fixed to the support block, and a winding motor is fixed on the support block. The first support plate and the second base plate are also connected and fixed by a connecting strip. The support block is also fixedly connected to one end of the second support plate on both sides near the clamping plate. The other end of the second support plate is rotatably connected to one end of the guide roller, and the other end of the guide roller is rotatably connected to the second base plate.

8. The drilling device for positioning holes of prefabricated steel structure components according to claim 1, characterized in that: A controller is fixedly installed on the top plate.

Images