Steel structural part drilling device

Abstract

The invention relates to the technical field of machining, and discloses a steel structural part drilling device which comprises a table top, a continuous drilling mechanism, an automatic synchronous conveying mechanism and a centering clamping mechanism. A back plate is fixedly arranged on the top of the rear side wall of the table top, the back plate is perpendicular to the table top, and the continuous drilling mechanism is arranged on the upper portion of the front side wall of the back plate. By arranging the automatic synchronous conveying mechanism, the movable teeth can be closed and separated from the driving gear during drilling, so that the conveying belt is kept fixed during drilling, a clamp and a workpiece on the surface of the conveying belt are kept fixed during drilling, and after drilling is completed, the movable teeth are opened and engaged with the driving gear; the driving gear drives the conveying belt to rotate anticlockwise, the conveying belt drives the clamp and the workpiece on the surface of the conveying belt to move when rotating, the workpiece which is not punched is conveyed to the bottom of the drill bit, and therefore automatic synchronous feeding is achieved, feeding continuity during drilling is guaranteed, and the drilling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a steel structure drilling device. Background Art

[0002] The drilling device for steel structure parts is a device used to make holes in steel structure materials. Common drilling devices include electric drills, drilling machines, etc. These devices play an important role in steel structure processing and are widely used in construction, bridges, machinery and other fields. Portable electric drills are commonly used drilling tools in steel structure processing, suitable for small-scale, low-precision drilling operations. According to the type of power supply, electric drills can be divided into wired electric drills and cordless electric drills. Drilling machines are more professional drilling equipment in steel structure processing, with higher precision and efficiency. Common types of drilling machines include vertical drilling machines, horizontal drilling machines and gantry drilling machines. These drilling machines are usually equipped with a movable workbench and drill bits, which can realize multi-axis and multi-directional drilling operations.

[0003] The existing drilling device has low drilling efficiency when drilling a large number of workpieces, and the workpiece is prone to deflection during drilling, which affects the drilling quality and accuracy. Therefore, a steel structure drilling device is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problems that the existing drilling device has low drilling efficiency when drilling a large number of workpieces, and the workpieces are easily deflected during drilling, which affects the drilling quality and accuracy. A steel structure drilling device is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A steel structure drilling device, comprising a table, a continuous drilling mechanism, an automatic synchronous feeding mechanism and a centering clamping mechanism; A back plate is fixedly provided on the top of the rear side wall of the table, and the back plate is vertically arranged with the table. The continuous drilling mechanism is arranged on the upper part of the front side wall of the back plate. The automatic synchronous feeding mechanism is arranged circumferentially on the outside of the table. A plurality of clamps are arranged on the upper surface of the automatic synchronous feeding mechanism. A workpiece is detachably provided on the inner top of the clamp. The spacing between adjacent clamps is consistent. The centering clamping mechanism is arranged on the upper and lower sides of the clamp and the workpiece. A plurality of brackets are fixedly provided on the bottom of the table. When drilling, the clamp and the workpiece are evenly placed on the surface of the automatic synchronous feeding mechanism. The operation of the continuous drilling mechanism drives the automatic synchronous feeding mechanism to transport the clamp and the workpiece, so as to ensure the continuity of feeding, thereby realizing continuous drilling and improving the drilling efficiency. At the same time, the operation of the drilling mechanism drives the centering clamping mechanism to fix the workpiece and the clamp, so as to improve the stability of the workpiece during drilling and avoid the deflection of the workpiece during drilling, which affects the drilling quality.

[0006] Furthermore, the continuous drilling mechanism includes a rotary motor, which is fixedly arranged at the top of the rear side wall of the back plate, and the output end of the rotary motor is connected to a driving shaft, which is arranged perpendicularly to the back plate, and the front end of the driving shaft extends to the front side wall of the back plate, and the front end of the driving shaft is connected to a rotating disk, and the edge of the front side wall of the rotating disk is fixedly connected to a connecting rod, which is arranged perpendicularly to the rotating disk, and a transmission rod is arranged perpendicularly to the connecting rod. When drilling, the rotary motor is started, and the rotating disk is driven to start rotating through the driving shaft. When the rotating disk rotates, the connecting rod connected to the edge of its front side wall is driven to rotate accordingly, and when the connecting rod rotates, the transmission rod is driven to start periodic up and down movement with the rotation of the connecting rod.

[0007] Furthermore, a pair of slide rails are symmetrically arranged on both sides of the front side wall of the back plate, a slider is slidably connected to the front outer side of the slide rail, a cross plate is horizontally and fixedly connected between the front side walls of the slider, a connecting rod is arranged on the top of the front side wall of the cross plate, the connecting rod is arranged parallel to the connecting rod, and the other end of the transmission rod is rotatably sleeved on the outer side wall of the connecting rod. When the transmission rod moves, the connecting rod is driven to move up and down, and when the connecting rod moves, the cross plate is driven to start moving, so that the sliders on both sides of the cross plate slide up and down along the slide rails.

[0008] Furthermore, a mounting block is fixedly provided at the bottom of the front side wall of the horizontal plate, a mounting plate is fixedly provided at the bottom of the mounting block, a drilling motor is fixedly provided at the bottom center of the mounting plate, a drill bit is detachably provided at the bottom output end of the drilling motor, the drill bit is vertically provided to the mounting plate, and the position of the drill bit matches the fixture and the workpiece. When the horizontal plate moves, the mounting block is driven to move accordingly, so that the mounting plate at the bottom of the mounting block moves accordingly, and when the mounting plate moves, the drilling motor at the bottom of the mounting plate starts to move up and down, and the drilling motor is started at this time, so that the drill bit starts to rotate at high speed, and when the drilling motor moves downward, the drill bit moves downward accordingly, and starts drilling the workpiece below, and when the drilling motor rises, the drill bit is separated from the workpiece, thereby realizing continuous drilling of the workpiece and effectively improving the drilling efficiency.

[0009] Furthermore, the automatic synchronous feeding mechanism includes a conveyor belt, which is arranged on the outside of the table in a circular manner, and the inner wall of the conveyor belt is evenly provided with a plurality of inner teeth, and two transmission rollers are connected to the inner ends of the conveyor belt through the inner teeth, and a transmission shaft is fixedly provided at the axis of the transmission roller, and the transmission shaft is vertically arranged with the back plate, and fixed frames are provided at both ends of the transmission shaft, and the transmission shaft is rotatably connected with the fixed frame, and the height of the fixed frame matches the height of the bracket, and a reinforcing rod is fixedly connected to the middle of the adjacent fixed frame. After the drilling is completed, the conveyor belt starts to move counterclockwise, and the transmission roller meshed with it is driven by the inner teeth to start rotating around the transmission shaft, and at this time, the clamp and workpiece on the top of the conveyor belt move accordingly.

[0010] Furthermore, a connecting plate is fixedly provided at the bottom left side of the back plate, and a driving gear is rotatably connected to the front side wall of the left end of the connecting plate, and the driving gear is meshed with the inner wall of the conveyor belt through the inner teeth. A cross bar is fixedly provided on the left side wall of the horizontal plate, and a vertical bar is fixedly connected to the left end of the cross bar, and the vertical bar is perpendicular to the table top. A plurality of movable teeth are provided at the bottom of the left side wall of the vertical bar, and the bottom of the vertical bar is meshed with the driving gear through the movable teeth. When drilling, the cross plate moves downward, driving the cross bar downward, causing the vertical bar at the left end of the cross bar to move downward accordingly. At this time, the movable teeth close and disengage from the drive gear, so that the conveyor belt remains fixed during drilling, thereby keeping the fixture and workpiece on the surface of the conveyor belt fixed during drilling. When the drilling is completed, the cross plate moves upward, driving the cross bar and the vertical bar to move upward accordingly. At this time, the movable teeth open and engage with the drive gear, causing the drive gear to start rotating counterclockwise, driving the conveyor belt to start rotating counterclockwise. When the conveyor belt rotates, it drives the fixture and workpiece on its surface to start moving, and transports the un-drilled workpiece to the bottom of the drill bit, thereby realizing automatic synchronous loading and ensuring the continuity of loading during drilling.

[0011] Furthermore, an inner groove is provided at the connection between the vertical rod and the movable tooth, the inner side wall of the inner groove is rotatably connected to a movable shaft, the movable shaft is vertically arranged to the back plate, the inner end of the movable tooth is fixedly connected to the outer wall of the movable shaft, the outer end of the movable tooth is arranged in a conical shape, the outer end of the movable tooth is arranged in an oblique upward direction, a stop block is fixedly provided on the outer edge of the bottom of the inner side wall of the inner groove, and a tension spring is connected between the upper side wall of the movable tooth and the top of the inner side wall of the inner groove. When the vertical rod moves downward, it drives the movable tooth to move downward. At this time, the lower side of the movable tooth contacts the driving gear and is pushed upward, causing the movable tooth to rotate upward around the movable axis and be retracted into the inner groove. At this time, the tension spring is compressed, generating a pulling force in the opposite direction. When the vertical rod moves upward, the movable tooth moves upward accordingly. When the upper side of the movable tooth contacts the driving gear and is pushed downward, the movable tooth is reset under the elastic force of the tension spring. The block can fix the movable tooth when the movable tooth is pushed downward, so that the movable tooth remains in an open state when it moves upward, thereby driving the driving gear meshing with it to start rotating.

[0012] Furthermore, the centering clamping mechanism includes a sliding plate, which is slidably arranged on both side walls of the mounting plate, a positioning plate is fixedly arranged on the bottom of the sliding plate, an inner hole is opened in the center of the positioning plate, the bottom end of the drill bit extends to the lower side of the inner hole, positioning blocks are fixedly arranged on both sides of the bottom of the positioning plate, upper inclined surfaces are symmetrically arranged on the inner edges of the bottoms of the opposite side walls of the positioning blocks, and lower inclined surfaces are arranged on the tops of both side walls of the clamp, the spacing between the positioning blocks matches the width of the clamp, the inclination of the upper inclined surface matches the lower inclined surface, a spring pin is arranged between the positioning plate and the mounting plate, the top end of the spring pin extends to the top of the mounting plate and is slidably connected thereto, and a spring is arranged around the outside of the spring pin. When the mounting plate moves downward, it drives the sliding plate downward, so that the positioning plate at the bottom of the sliding plate moves downward accordingly. When the positioning plate moves downward, it drives the positioning block downward accordingly. When the positioning block moves downward, the upper inclined surface at the bottom of the positioning block contacts the lower inclined surfaces on both sides of the fixture, thereby generating a horizontal thrust on the fixture, so that the fixture moves between the positioning blocks. When the angle moves, it drives the workpiece on the top of the fixture to move accordingly, thereby realizing self-centering of the workpiece in the horizontal direction. As the mounting plate continues to move downward, the positioning plate is subjected to an upward thrust. At this time, the spring pin and the mounting plate slide relative to each other, and the spring surrounding the spring pin is compressed, generating a downward elastic force on the positioning plate, thereby further fixing the fixture in the vertical direction and improving the stability of the workpiece during drilling.

[0013] The top end of the lifting paddle shift pin is fixedly provided with a toothed wheel, and the other end of the toothed wheel is connected with a toothed wheel at the bottom end of the lifting paddle shift pin. When the cross plate moves downward, it drives the upper movable rod and the upper rack to slide toward each other along the slide groove. When the upper rack moves toward each other, it drives the transmission gear meshing with it to start rotating, so that the lower rack meshing with the transmission gear moves upward, driving the lower movable rod and the push rod to move upward. When the push rod moves upward, it drives the top plate upward, thereby supporting the clamp on the top of the conveyor belt and further improving the stability of the workpiece during drilling.

[0014] Furthermore, a plurality of top teeth are evenly arranged on the top of the top plate, and the top teeth mesh with the inner teeth, and the top plate is located directly below the positioning plate. When the top plate moves upward, the top teeth are driven to move upward, so that the top teeth mesh with the inner teeth of the inner wall of the conveyor belt, thereby further fixing the conveyor belt and preventing the workpiece from being deflected during drilling, thereby affecting the drilling quality.

[0015] Beneficial effects of the present invention: 1. The steel structure drilling device of the present invention is provided with an automatic synchronous feeding mechanism, so that the horizontal plate can move downward during drilling, driving the horizontal bar to move downward, so that the vertical bar at the left end of the horizontal bar moves downward accordingly, and the movable teeth are closed and disengaged from the driving gear, so that the conveyor belt remains fixed during drilling, thereby keeping the fixture and workpiece on the surface of the conveyor belt fixed during drilling. When the drilling is completed, the horizontal plate moves upward, driving the horizontal bar and the vertical bar to move upward accordingly, and the movable teeth open and mesh with the driving gear, so that the driving gear starts to rotate counterclockwise, driving the conveyor belt to start rotating counterclockwise, and when the conveyor belt rotates, it drives the fixture and workpiece on its surface to start moving, and transports the un-drilled workpiece to the bottom of the drill bit, thereby realizing automatic synchronous feeding, ensuring the continuity of feeding during drilling, and improving drilling efficiency.

[0016] 2. The drilling device for steel structure parts of the present invention is provided with a centering clamping mechanism, which can drive the sliding plate to move downward when the mounting plate moves downward, so that the positioning plate at the bottom of the sliding plate moves downward accordingly, and the positioning plate moves downward, which drives the positioning block to move downward accordingly. When the positioning block moves downward, the upper inclined surface at the bottom of the positioning block contacts the lower inclined surfaces on both sides of the clamp, thereby generating a horizontal thrust on the clamp, so that the clamp moves between the positioning blocks, and drives the workpiece on the top of the clamp to move accordingly when the angle moves, thereby realizing self-centering of the workpiece in the horizontal direction. As the mounting plate continues to move downward, the positioning plate is subjected to an upward thrust. At this time, the spring pin and the mounting plate slide relative to each other, and the spring surrounding the outside of the spring pin is compressed, generating a downward elastic force on the positioning plate, thereby further fixing the clamp in the vertical direction, thereby improving the stability of the workpiece during drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the steel structure drilling device; Figure 2 It is a side view structural schematic diagram of the steel structure drilling device; Figure 3 It is a schematic diagram of the connection structure of the upper rack and the lower rack of the steel structure drilling device; Figure 4 The present invention is a schematic diagram of the connection structure between the movable teeth and the driving gear of the steel structure drilling device.

[0018] Description of reference numerals: 1, table; 2, back plate; 3, conveyor belt; 4, fixture; 5, workpiece; 6, bracket; 7, fixed frame; 8, reinforcing rod; 9, transmission shaft; 10, transmission roller; 11; inner teeth; 12, lower inclined surface; 13, rotating disk; 14, connecting rod; 15, transmission rod; 16, slide rail; 17, slider; 18, cross plate; 19, connecting rod; 20, mounting block; 21, mounting plate; 22, sliding plate; 23, spring pin; 24, spring; 25, positioning plate; 26. Positioning block; 27. Upper inclined plane; 28. Drilling motor; 29. ​​Inner hole; 30. Drill bit; 31. Cross bar; 32. Vertical bar; 33. Movable teeth; 34. Connecting plate; 35. Driving gear; 36. Top plate; 37. Top bar; 38. Top teeth; 39. Upper movable rod; 40. Upper rack; 41. Transmission gear; 42. Lower rack; 43. Lower movable rod; 44. Slide; 45. Inner groove; 46. Movable shaft; 47. Tension spring; 48. Rotating motor; 49. Stop block. DETAILED DESCRIPTION

[0019] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0020] like Figure 1-4As shown, a drilling device for steel structure parts comprises a table 1, a continuous drilling mechanism, an automatic synchronous feeding mechanism and a centering clamping mechanism; A back plate 2 is fixedly provided on the top of the rear side wall of the table top 1, and the back plate 2 is vertically arranged with the table top 1. The continuous drilling mechanism is arranged on the upper part of the front side wall of the back plate 2. The automatic synchronous feeding mechanism is arranged around the outside of the table top 1. A plurality of clamps 4 are provided on the upper surface of the automatic synchronous feeding mechanism. A workpiece 5 is detachably provided on the inner top of the clamp 4, and the intervals between adjacent clamps 4 are consistent. The centering clamping mechanism is arranged on the upper and lower sides of the clamp 4 and the workpiece 5. A plurality of brackets 6 are fixedly provided on the bottom of the table top 1. When drilling, the fixture 4 and the workpiece 5 are evenly placed on the surface of the automatic synchronous feeding mechanism. The operation of the continuous drilling mechanism drives the automatic synchronous feeding mechanism to transport the fixture 4 and the workpiece 5 to ensure the continuity of feeding, thereby achieving continuous drilling and improving the drilling efficiency. At the same time, the operation of the drilling mechanism drives the centering clamping mechanism to fix the workpiece 5 and the fixture 4, thereby improving the stability of the workpiece 5 during drilling and avoiding the workpiece 5 from being skewed during drilling, which affects the drilling quality.

[0021] The continuous drilling mechanism includes a rotary motor 48, which is fixedly arranged at the top of the rear side wall of the back plate 2. The output end of the rotary motor 48 is connected to a driving shaft, which is arranged perpendicularly to the back plate 2. The front end of the driving shaft extends to the front side wall of the back plate 2. The front end of the driving shaft is connected to a rotating disk 13, and the edge of the front side wall of the rotating disk 13 is fixedly connected to a connecting rod 14, which is arranged perpendicularly to the rotating disk 13. A transmission rod 15 is rotatably sleeved on the outer side of the front end of the connecting rod 14, and the transmission rod 15 is arranged perpendicularly to the connecting rod 14. When drilling, the rotary motor 48 is started, and the rotating disk 13 is driven to rotate through the driving shaft. When the rotating disk 13 rotates, the connecting rod 14 connected to the edge of its front side wall is driven to rotate accordingly. When the connecting rod 14 rotates, the transmission rod 15 is driven to start periodic up and down movement as the connecting rod 14 rotates.

[0022] A pair of slide rails 16 are symmetrically arranged on both sides of the front side wall of the back plate 2, and a slider 17 is slidably connected to the front outer side of the slide rail 16, and a cross plate 18 is horizontally and fixedly connected between the front side walls of the slider 17, and a connecting rod 19 is arranged on the top of the front side wall of the cross plate 18, and the connecting rod 19 is arranged parallel to the connecting rod 14, and the other end of the transmission rod 15 is rotatably sleeved on the outer side wall of the connecting rod 19. When the transmission rod 15 moves, it drives the connecting rod 19 to move up and down, and when the connecting rod 19 moves, it drives the cross plate 18 to start moving, so that the sliders 17 on both sides of the cross plate 18 slide up and down along the slide rail 16.

[0023] The bottom of the front side wall of the horizontal plate 18 is fixedly provided with a mounting block 20, the bottom of the mounting block 20 is fixedly provided with a mounting plate 21, the bottom center of the mounting plate 21 is fixedly provided with a drilling motor 28, and the bottom output end of the drilling motor 28 is detachably provided with a drill bit 30, the drill bit 30 is vertically arranged with the mounting plate 21, and the position of the drill bit 30 matches the fixture 4 and the workpiece 5. When the horizontal plate 18 moves, the mounting block 20 is driven to move accordingly, so that the mounting plate 21 at the bottom of the mounting block 20 moves accordingly, and when the mounting plate 21 moves, the drilling motor 28 at the bottom of the mounting plate 21 starts to move up and down, and the drilling motor 28 is started at this time, so that the drill bit 30 starts to rotate at a high speed, and when the drilling motor 28 moves downward, the drill bit 30 moves downward accordingly, and starts drilling the workpiece 5 below, and when the drilling motor 28 rises, the drill bit 30 is separated from the workpiece 5, thereby realizing continuous drilling operation of the workpiece 5, effectively improving the drilling efficiency.

[0024] The automatic synchronous feeding mechanism includes a conveyor belt 3, which is arranged on the outside of the table 1 in a circular manner. The inner wall of the conveyor belt 3 is evenly provided with a plurality of inner teeth 11. Two transmission rollers 10 are connected to the inner ends of the conveyor belt 3 through the inner teeth 11. A transmission shaft 9 is fixedly arranged at the axis of the transmission roller 10. The transmission shaft 9 is arranged vertically with the back plate 2. A fixing frame 7 is arranged at both ends of the transmission shaft 9. The transmission shaft 9 is rotatably connected with the fixing frame 7. The height of the fixing frame 7 matches the height of the bracket 6. A reinforcing rod 8 is fixedly connected to the middle of the adjacent fixing frame 7. After the drilling is completed, the conveyor belt 3 starts to move counterclockwise, and the transmission roller 10 meshing with it is driven by the inner teeth 11 to start rotating around the transmission shaft 9. At this time, the clamp 4 and the workpiece 5 on the top of the conveyor belt 3 move accordingly.

[0025] A connecting plate 34 is fixedly provided at the bottom left side of the back plate 2, and a driving gear 35 is rotatably connected to the front side wall of the left end of the connecting plate 34, and the driving gear 35 is meshed with the inner wall of the conveyor belt 3 through the inner teeth 11. A cross bar 31 is fixedly provided on the left side wall of the cross plate 18, and a vertical bar 32 is fixedly connected to the left end of the cross bar 31, and the vertical bar 32 is vertically arranged to the table top 1. A plurality of movable teeth 33 are provided at the bottom of the left side wall of the vertical bar 32, and the bottom of the vertical bar 32 is meshed with the driving gear 35 through the movable teeth 33. When drilling, the cross plate 18 moves downward, driving the cross bar 31 to move downward, so that the vertical bar 32 at the left end of the cross bar 31 moves downward accordingly. At this time, the movable teeth 33 are closed and disengaged from the driving gear 35, so that the conveyor belt 3 remains fixed during drilling, thereby keeping the fixture 4 and the workpiece 5 on the surface of the conveyor belt 3 fixed during drilling. When the drilling is completed, the cross plate 18 moves upward, driving the cross bar 31 and the vertical bar 32 to move upward accordingly. At this time, the movable teeth 33 open and mesh with the driving gear 35, so that the driving gear 35 starts to rotate counterclockwise, driving the conveyor belt 3 to start rotating counterclockwise. When the conveyor belt 3 rotates, it drives the fixture 4 and the workpiece 5 on its surface to start moving, and transports the un-drilled workpiece 5 to the bottom of the drill bit 30, thereby realizing automatic synchronous loading and ensuring the continuity of loading during drilling.

[0026] An inner groove 45 is provided at the connection between the vertical rod 32 and the movable tooth 33, and the inner side wall of the inner groove 45 is rotatably connected with a movable shaft 46, and the movable shaft 46 is vertically arranged to the back plate 2. The inner end of the movable tooth 33 is fixedly connected to the outer wall of the movable shaft 46, and the outer end of the movable tooth 33 is arranged in a conical shape, and the outer end of the movable tooth 33 is arranged in an oblique upward direction. A stopper 49 is fixedly provided on the outer edge of the bottom of the inner side wall of the inner groove 45, and a tension spring 47 is connected between the upper side wall of the movable tooth 33 and the top of the inner side wall of the inner groove 45. When the vertical rod 32 moves downward, it drives the movable tooth 33 to move downward. At this time, the lower side of the movable tooth 33 contacts the driving gear 35 and is pushed upward, so that the movable tooth 33 rotates upward around the movable shaft 46 and is received in the inner groove 45. At this time, the tension spring 47 is compressed to generate a pulling force in the opposite direction. When the vertical rod 32 moves upward, the movable tooth 33 moves upward accordingly. When the upper side of the movable tooth 33 contacts the driving gear 35, it is pushed downward. At this time, the movable tooth 33 is reset under the elastic force of the tension spring 47. The stopper 49 can fix the movable tooth 33 when the movable tooth 33 is pushed downward, so that the movable tooth 33 remains in an open state when it moves upward, thereby driving the driving gear 35 meshing with it to start rotating.

[0027] The centering clamping mechanism includes a sliding plate 22, which is slidably arranged on both side walls of the mounting plate 21, and a positioning plate 25 is fixedly arranged at the bottom of the sliding plate 22. An inner hole 29 is opened in the center of the positioning plate 25, and the bottom end of the drill bit 30 extends to the lower side of the inner hole 29. Positioning blocks 26 are fixedly arranged on both sides of the bottom of the positioning plate 25, and upper inclined surfaces 27 are symmetrically arranged on the inner edge of the bottom of the opposite side walls of the positioning blocks 26. Lower inclined surfaces 12 are arranged on the top of the side walls of the clamp 4. The spacing between the positioning blocks 26 matches the width of the clamp 4, and the inclination of the upper inclined surface 27 matches the lower inclined surface 12. A spring pin 23 is arranged between the positioning plate 25 and the mounting plate 21, and the top end of the spring pin 23 extends to the top of the mounting plate 21 and is slidably connected thereto, and a spring 24 is arranged around the outside of the spring pin 23. When the mounting plate 21 moves downward, it drives the sliding plate 22 downward, so that the positioning plate 25 at the bottom of the sliding plate 22 moves downward accordingly. When the positioning plate 25 moves downward, it drives the positioning block 26 downward. When the positioning block 26 moves downward, the upper inclined surface 27 at the bottom contacts the lower inclined surfaces 12 on both sides of the clamp 4, generating a horizontal thrust on the clamp 4, so that the clamp 4 moves between the positioning blocks 26. When the angle moves, it drives the workpiece 5 on the top of the clamp 4 to move accordingly, thereby realizing self-centering of the workpiece 5 in the horizontal direction. As the mounting plate 21 continues to move downward, the positioning plate 25 is subjected to an upward thrust. At this time, the spring pin 23 and the mounting plate 21 slide relative to each other, and the spring 24 surrounding the outside of the spring pin 23 is compressed, generating a downward elastic force on the positioning plate 25, thereby further fixing the clamp 4 in the vertical direction, thereby improving the stability of the workpiece 5 during drilling.

[0028] A slide groove 44 is vertically provided in the middle of the rear side wall of the back plate 2, an upper movable rod 39 is fixedly connected to the bottom of the cross plate 18, and the other end of the upper movable rod 39 passes through the slide groove 44 and is connected to the upper rack 40, a top plate 36 is movably provided on the top of the table top 1, the top plate 36 is arranged parallel to the table top 1, a top rod 37 is fixedly provided at the bottom center of the top plate 36, the top rod 37 is arranged perpendicular to the table top 1, and the bottom end of the top rod 37 passes through the table top 1 and extends to the top of the table top 1. At the bottom, the bottom end of the top rod 37 is fixedly connected to a lower movable rod 43, and the other end of the lower movable rod 43 extends to the bottom of the rear side wall of the back panel 2. The other end of the lower movable rod 43 is fixedly connected to a lower rack 42, and the lower rack 42 is arranged parallel to the top rod 37. The upper rack 40 is arranged parallel to the lower rack 42, and the upper rack 40 and the lower rack 42 are centrally meshed with a transmission gear 41 that is connected to the rear side wall of the back panel 2 for rotation. When the cross plate 18 moves downward, it drives the upper movable rod 39 and the upper rack 40 to slide toward each other along the slide groove 44. When the upper rack 40 moves toward each other, it drives the transmission gear 41 meshing therewith to start rotating, so that the lower rack 42 meshing with the transmission gear 41 moves upward, driving the lower movable rod 43 and the top rod 37 to move upward. When the top rod 37 moves upward, it drives the top plate 36 to move upward, thereby supporting the clamp 4 on the top of the conveyor belt 3, and further improving the stability of the workpiece 5 during drilling.

[0029] A plurality of top teeth 38 are evenly arranged on the top of the top plate 36, and the top teeth 38 mesh with the inner teeth 11. The top plate 36 is located directly below the positioning plate 25. When the top plate 36 moves upward, the top teeth 38 are driven to move upward, so that the top teeth 38 mesh with the inner teeth 11 on the inner wall of the conveyor belt 3, thereby further fixing the conveyor belt 3, preventing the workpiece 5 from being deflected during drilling, which affects the drilling quality.

[0030] Working principle: when drilling, the rotating motor 48 is started, and the rotating disk 13 is driven to rotate through the driving shaft. When the rotating disk 13 rotates, it drives the connecting rod 14 connected to the edge of its front side wall to rotate accordingly. When the connecting rod 14 rotates, it drives the transmission rod 15 to start periodic up and down movement with the rotation of the connecting rod 14. When the transmission rod 15 moves, it drives the connecting rod 19 to move up and down accordingly. When the connecting rod 19 moves, it drives the cross plate 18 to start moving, so that the sliders 17 on both sides of the cross plate 18 slide up and down along the slide rail 16. When the cross plate 18 moves, it drives the mounting block 20 to move accordingly, so that the mounting plate 21 at the bottom of the mounting block 20 moves accordingly. When the mounting plate 21 moves, it drives the drilling motor 28 at the bottom of the mounting plate 21 to start moving up and down. At this time, the drilling motor 28 is started, so that the drill bit 30 starts to rotate at high speed. When the drilling motor 28 moves downward, the drill bit 30 moves downward accordingly, and drilling of the workpiece 5 below begins. When the drilling motor 28 rises, the drill bit 30 is separated from the workpiece 5, thereby realizing continuous drilling operation of the workpiece 5, effectively improving the drilling efficiency.

[0031] When drilling, the horizontal plate 18 moves downward, driving the horizontal rod 31 to move downward, so that the vertical rod 32 at the left end of the horizontal rod 31 moves downward accordingly. When the vertical rod 32 moves downward, it drives the movable tooth 33 to move downward. At this time, the lower side of the movable tooth 33 contacts the driving gear 35 and is pushed upward, so that the movable tooth 33 rotates upward around the movable shaft 46 and is received in the inner groove 45. At this time, the tension spring 47 is compressed to generate an elastic force in the opposite direction, and the movable tooth 33 is separated from the driving gear 35, so that the conveyor belt 3 remains fixed during drilling, thereby keeping the fixture 4 and the workpiece 5 on the surface of the conveyor belt 3 fixed during drilling. When the drilling is completed, the horizontal plate 18 moves upward, driving the horizontal rod 31 and the vertical rod 32 to move upward accordingly. When the vertical rod 32 moves upward, the movable tooth 33 moves upward accordingly. When the upper side of the movable tooth 33 contacts the driving gear 35, it is pushed downward. At this time, the movable tooth 33 is reset under the elastic force of the tension spring 47. The stopper 49 can fix the movable tooth 33 when the movable tooth 33 is pushed downward, so that the movable tooth 33 remains in an open state when it moves upward and meshes with the driving gear 35, so that the driving gear 35 starts to rotate counterclockwise, driving the conveyor belt 3 to start rotating counterclockwise. When the conveyor belt 3 rotates, it drives the clamp 4 and the workpiece 5 on its surface to start moving, and transports the un-drilled workpiece 5 to the bottom of the drill bit 30, thereby realizing automatic synchronous feeding and ensuring the continuity of feeding during drilling.

[0032] When the mounting plate 21 moves downward, it drives the sliding plate 22 downward, so that the positioning plate 25 at the bottom of the sliding plate 22 moves downward accordingly. When the positioning plate 25 moves downward, it drives the positioning block 26 downward. When the positioning block 26 moves downward, the upper inclined surface 27 at the bottom contacts the lower inclined surfaces 12 on both sides of the clamp 4, generating a horizontal thrust on the clamp 4, so that the clamp 4 moves between the positioning blocks 26. When the angle moves, it drives the workpiece 5 on the top of the clamp 4 to move accordingly, thereby realizing the self-centering of the workpiece 5 in the horizontal direction. As the mounting plate 21 continues to move downward, the positioning plate 25 is subjected to an upward thrust. At this time, the spring pin 23 and the mounting plate 21 slide relative to each other, and the spring 24 surrounding the spring pin 23 is compressed, generating a downward elastic force on the positioning plate 25, thereby The clamp 4 is further fixed to improve the stability of the workpiece 5 during drilling. When the cross plate 18 moves downward, it drives the upper movable rod 39 and the upper rack 40 to slide toward each other along the slide groove 44. When the upper rack 40 moves toward each other, it drives the transmission gear 41 meshing therewith to start rotating, so that the lower rack 42 meshing with the transmission gear 41 moves upward, driving the lower movable rod 43 and the top rod 37 to move upward. When the top rod 37 moves upward, it drives the top plate 36 to move upward, thereby supporting the clamp 4 at the top of the conveyor belt 3, further improving the stability of the workpiece 5 during drilling. When the top plate 36 moves upward, it drives the top teeth 38 to move upward, so that the top teeth 38 mesh with the inner teeth 11 on the inner wall of the conveyor belt 3, thereby further fixing the conveyor belt 3 to prevent the workpiece 5 from being deflected during drilling and affecting the drilling quality.

[0033] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A steel structure drilling device, characterized in that: It comprises a table (1), a continuous drilling mechanism, an automatic synchronous feeding mechanism and a centering clamping mechanism; A back plate (2) is fixedly arranged on the top of the rear side wall of the table top (1), and the back plate (2) is arranged perpendicular to the table top (1). The continuous drilling mechanism is arranged on the upper part of the front side wall of the back plate (2). The automatic synchronous feeding mechanism is arranged circumferentially on the outside of the table top (1). A plurality of clamps (4) are arranged on the upper surface of the automatic synchronous feeding mechanism. A workpiece (5) is detachably arranged on the inner top of the clamp (4), and the spacing between adjacent clamps (4) is consistent. The centering clamping mechanism is arranged on the upper and lower sides of the clamp (4) and the workpiece (5). A plurality of brackets (6) are fixedly arranged on the bottom of the table top (1).

2. A steel structure drilling device according to claim 1, characterized in that The continuous drilling mechanism comprises a rotating motor (48), the rotating motor (48) is fixedly arranged at the top of the rear side wall of the back plate (2), the output end of the rotating motor (48) is connected to a driving shaft, the driving shaft is arranged perpendicularly to the back plate (2), the front end of the driving shaft extends to the front side wall of the back plate (2), the front end of the driving shaft is connected to a rotating disk (13), the front side wall edge of the rotating disk (13) is fixedly connected to a connecting rod (14), the connecting rod (14) is arranged perpendicularly to the rotating disk (13), and a transmission rod (15) is rotatably sleeved on the outer side of the front end of the connecting rod (14), and the transmission rod (15) is arranged perpendicularly to the connecting rod (14).

3. A steel structure drilling device according to claim 2, characterized in that A pair of slide rails (16) are symmetrically arranged on both sides of the front side wall of the back plate (2); a slider (17) is slidably connected to the front outer side of the slide rail (16); a cross plate (18) is horizontally and fixedly connected between the front side walls of the slider (17); a connecting rod (19) is arranged at the top of the front side wall of the cross plate (18); the connecting rod (19) is arranged parallel to the connecting rod (14); and the other end of the transmission rod (15) is rotatably sleeved on the outer side wall of the connecting rod (19).

4. A steel structure drilling device according to claim 3, characterized in that A mounting block (20) is fixedly arranged at the bottom of the front side wall of the horizontal plate (18), a mounting plate (21) is fixedly arranged at the bottom of the mounting block (20), a drilling motor (28) is fixedly arranged at the bottom center of the mounting plate (21), a drill bit (30) is detachably arranged at the bottom output end of the drilling motor (28), the drill bit (30) is arranged vertically to the mounting plate (21), and the position of the drill bit (30) matches the fixture (4) and the workpiece (5).

5. A steel structure drilling device according to claim 4, characterized in that The automatic synchronous feeding mechanism comprises a conveyor belt (3), the conveyor belt (3) is arranged in a circular manner outside the table top (1), the inner wall of the conveyor belt (3) is evenly provided with a plurality of inner teeth (11), the inner ends of the conveyor belt (3) are connected to two transmission rollers (10) through the inner teeth (11), a transmission shaft (9) is fixedly arranged at the axis of the transmission roller (10), the transmission shaft (9) is arranged perpendicular to the back plate (2), fixed frames (7) are arranged at both ends of the transmission shaft (9), the transmission shaft (9) is rotatably connected to the fixed frame (7), the height of the fixed frame (7) matches the height of the bracket (6), and a reinforcing rod (8) is fixedly connected to the middle of the adjacent fixed frame (7).

6. A steel structure drilling device according to claim 5, characterized in that A connecting plate (34) is fixedly provided at the bottom left side of the back plate (2); a driving gear (35) is rotatably connected to the front side wall of the left end of the connecting plate (34); the driving gear (35) is meshed with the inner wall of the conveyor belt (3) through the inner teeth (11); a cross bar (31) is fixedly provided at the left side wall of the horizontal plate (18); a vertical bar (32) is fixedly connected to the left end of the cross bar (31); the vertical bar (32) is vertically arranged with the table top (1); a plurality of movable teeth (33) are provided at the bottom left side wall of the vertical bar (32); the bottom of the vertical bar (32) is meshed with the driving gear (35) through the movable teeth (33).

7. A steel structure drilling device according to claim 6, characterized in that An inner groove (45) is provided at the connection between the vertical rod (32) and the movable tooth (33); the inner side wall of the inner groove (45) is rotatably connected to a movable shaft (46); the movable shaft (46) is vertically arranged to the back plate (2); the inner end of the movable tooth (33) is fixedly connected to the outer wall of the movable shaft (46); the outer end of the movable tooth (33) is arranged in a conical shape; the outer end of the movable tooth (33) is arranged in an oblique upward direction; a stopper (49) is fixedly arranged at the outer edge of the bottom of the inner side wall of the inner groove (45); and a tension spring (47) is connected between the upper side wall of the movable tooth (33) and the top of the inner side wall of the inner groove (45).

8. A steel structure drilling device according to claim 5, characterized in that The centering clamping mechanism comprises a sliding plate (22), the sliding plate (22) being slidably arranged on the side walls of both sides of the mounting plate (21), a positioning plate (25) being fixedly arranged at the bottom of the sliding plate (22), an inner hole (29) being opened at the center of the positioning plate (25), the bottom end of the drill bit (30) extending to the lower side of the inner hole (29), and positioning blocks (26) being fixedly arranged on both sides of the bottom of the positioning plate (25), and upper inclined surfaces being symmetrically arranged at the inner edges of the bottoms of the opposite side walls of the positioning blocks (26). (27), lower inclined surfaces (12) are arranged on the top of the side walls on both sides of the clamp (4), the spacing between the positioning blocks (26) matches the width of the clamp (4), the inclination of the upper inclined surface (27) matches the lower inclined surface (12), a spring pin (23) is arranged between the positioning plate (25) and the mounting plate (21), the top end of the spring pin (23) extends to the top of the mounting plate (21) and is slidably connected thereto, and a spring (24) is arranged around the outside of the spring pin (23).

9. A steel structure drilling device according to claim 8, characterized in that A slide groove (44) is vertically provided in the middle of the rear side wall of the back plate (2); an upper movable rod (39) is fixedly connected to the bottom of the horizontal plate (18); the other end of the upper movable rod (39) passes through the slide groove (44) and is connected to the upper rack (40); a top plate (36) is movably provided on the top of the table top (1); the top plate (36) is arranged parallel to the table top (1); a top rod (37) is fixedly provided at the bottom center of the top plate (36); the top rod (37) is arranged perpendicular to the table top (1); the bottom end of the top rod (37) passes through the table top (1) and extends to the table top (1), the bottom end of the top rod (37) is fixedly connected to a lower movable rod (43), the other end of the lower movable rod (43) extends to the bottom of the rear side wall of the back plate (2), the other end of the lower movable rod (43) is fixedly connected to a lower rack (42), the lower rack (42) is arranged parallel to the top rod (37), the upper rack (40) is arranged parallel to the lower rack (42), the upper rack (40) and the lower rack (42) are centrally meshed with each other at the side walls facing each other, and the transmission gear (41) is rotatably connected to the rear side wall of the back plate (2).

10. A steel structure drilling device according to claim 9, characterized in that A plurality of top teeth (38) are evenly arranged on the top of the top plate (36), the top teeth (38) meshing with the inner teeth (11), and the top plate (36) is located directly below the positioning plate (25).

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