Automatic hole opening equipment for arc-shaped connecting plate of microwave communication tower

Abstract

The application discloses a microwave communication tower arc-shaped connecting plate automatic hole opening equipment, which comprises an arc-shaped connecting plate body and two moving platforms, the arc-shaped surface of the arc-shaped connecting plate body is a vertical surface, the two moving platforms are arranged on the upper and lower sides of the arc-shaped connecting plate body, and the directions of the two moving platforms are opposite, a transmission shaft is arranged on the moving platform and is slidably connected through the moving platform; the arc-shaped inner wall or the outer wall of the arc-shaped connecting plate body is synchronously extruded and positioned by two adjusting plates, so that the position of the arc-shaped connecting plate body can be quickly adjusted, the arc-shaped center of the arc-shaped connecting plate body is coincided with the vertical line of the drill bit, the drill bit can conveniently drill the arc-shaped connecting plate body along the radial direction of the arc-shaped connecting plate body, the drilling precision is effectively improved, the machining quality is improved, the drilling difficulty is effectively reduced, and the operation mode is simplified.

Description

Technical Field

[0001] This invention relates to the technical field of automated processing in emerging strategic industries, and in particular to an automatic hole-opening device for the arc-shaped connecting plate of a microwave communication tower. Background Technology

[0002] Microwave communication towers are a type of signal transmission tower, also known as signal transmission towers or signal towers. Their main function is to support signal transmission antennas. Microwave communication towers can be used for the transmission and transmission of microwave, ultra-shortwave, and wireless network signals. Microwave communication towers are mostly built at high locations such as the ground, rooftops, and mountaintops. To improve the tower's wind resistance, the tower body is often made of angle steel supplemented with steel plates, or it can be entirely composed of steel pipes. The various components of the tower are connected by bolts.

[0003] The arc-shaped connecting plates on microwave communication towers are mainly used to connect different components on the tower body; their shape is as follows: Figure 1 As shown in the figure, when machining this component, it is necessary to open a fixing hole along the radial direction of its arc to facilitate the insertion of bolts. Since the longitudinal thickness of the arc connecting plate is smaller than its vertical width, and holes need to be opened on the inner wall of the arc, the drilling is difficult and not easy to operate. Furthermore, the existing drilling equipment cannot ensure that the drilling direction of the drill bit is along the radial direction of the arc when drilling, resulting in the drilling tilt, which affects the machining accuracy of the arc connecting plate. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an automatic hole-opening device for the arc-shaped connecting plate of a microwave communication tower.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automatic drilling device for the arc-shaped connecting plate of a microwave communication tower includes an arc-shaped connecting plate body and two moving platforms. The arc-shaped surface of the arc-shaped connecting plate body is a vertical surface. The two moving platforms are respectively located on the upper and lower sides of the arc-shaped connecting plate body, and the two moving platforms are oriented in opposite directions. A drive shaft is provided on the moving platform, passing through the moving platform and slidably connected. A drill bit is provided at the end of the drive shaft facing the arc-shaped connecting plate body. Adjustment plates are inclined on both sides of the drill bit, with the two adjustment plates inclined in opposite directions. The adjustment plates are set on the moving platform. The outer ends of the two adjustment plates synchronously squeeze the arc-shaped inner wall of the arc-shaped connecting plate body, thereby adjusting the arc-shaped position of the arc-shaped connecting plate body so that the center of the arc-shaped connecting plate body is located between the two adjustment plates and coincides with the vertical line where the drill bit is located.

[0007] Furthermore, the drill bit consists of a polygonal tool holder and multiple arc-shaped cutter bodies mounted on the end face of the polygonal tool holder facing the arc-shaped connecting plate body. The multiple arc-shaped cutter bodies are arranged in a ring, and the positions of the multiple arc-shaped cutter bodies on the two drill bits are staggered.

[0008] The bottom of the drive shaft has a polygonal retaining hole, the polygonal tool holder is slidably inserted into the polygonal retaining hole, and the polygonal tool holder is fastened to the drive shaft by bolts.

[0009] Furthermore, a reinforcing column is provided between multiple arc-shaped cutter bodies on the drill bit. The reinforcing column slides through the polygonal cutter holder. Multiple guide grooves are provided on the outer wall of the reinforcing column. Guide ribs are provided on the side wall of the arc-shaped cutter bodies facing the reinforcing column. The guide ribs are slidably installed in the guide grooves, so that the multiple arc-shaped cutter bodies guide the reinforcing column. At the same time, the reinforcing column supports the multiple arc-shaped cutter bodies in the opposite direction. Multiple cutting grooves are provided at the end of the reinforcing column facing the arc-shaped connecting plate body.

[0010] A mounting plate is fixed to the outer end of the reinforcing column, and a spring connects the mounting plate to the polygonal tool holder.

[0011] Furthermore, the drill bit is provided with fixing plates on both the front and rear sides. The fixing plates are fixed on the moving platform. Half gears are rotatably provided on both the left and right sides of the fixing plates. The two half gears mesh with each other. The adjusting plate is fixed on the half gears. The fixing plates and the half gears are fastened together by bolts.

[0012] Furthermore, it also includes two base frames, which are located on the outside of the two mobile platforms respectively. The mobile platforms are equipped with multiple legs, the outer ends of which slide through the base frames. Multiple leaf springs connect the mobile platforms and the base frames. Limiting plates are provided on the outer ends of the legs. A main motor is fixed on the base frame, and the output end of the main motor is connected to the drive shaft.

[0013] Furthermore, it also includes a positioning plate, with side pressure plates on both the front and rear sides of the positioning plate. The side pressure plates are rotatably connected to the positioning plate, and the end of the arc-shaped connecting plate body contacts the side wall of the positioning plate. The two side pressure plates respectively contact the front and rear outer walls of the arc-shaped connecting plate body.

[0014] Furthermore, it also includes a back plate, and a sliding column is provided laterally on the outer wall of the positioning plate. The outer end of the sliding column slides through the back plate. A sub-plate is provided at the outer end of the sliding column. The sub-plate and the back plate are fixedly connected by bolts and lock nuts. A sliding sleeve is slidably fitted on the outer wall of the sliding column. Connecting frames are rotatably provided on both the front and rear sides of the sliding sleeve. The outer end of the connecting frame is rotatably connected to the outer wall of the side pressure plate. A cylinder is connected between the sliding sleeve and the positioning plate.

[0015] Furthermore, the base frame is vertically slidably mounted on the back plate, and a bidirectional motor is fixed in the middle of the back plate. A dual-output reducer is driven on the output ends of the bidirectional motor on both the front and rear sides. The dual-output reducer is fixed on the back plate, and a threaded rod is provided on the output ends of the upper and lower sides of the dual-output reducer. The threads of the two threaded rods are in opposite directions, and the outer ends of the threaded rods pass through the base frame and are threadedly connected.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by using two adjusting plates to simultaneously squeeze and position the inner or outer wall of the arc-shaped connecting plate body, the position of the arc-shaped connecting plate body can be quickly adjusted so that its arc center coincides with the vertical line where the drill bit is located. This makes it easier for the drill bit to drill holes in the arc-shaped connecting plate body along the radial direction of the arc, effectively improving drilling accuracy and processing quality, while also effectively reducing drilling difficulty and simplifying the operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present 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 recorded in the present 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 front structure of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged schematic diagram of the central frame structure;

[0020] Figure 3 yes Figure 2 A schematic diagram of the central frame structure viewed from below;

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of the central drive shaft;

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of the middle drill bit structure;

[0023] Figure 6 yes Figure 5 Enlarged structural diagram of the center drill bit (viewed from below);

[0024] Figure 7 yes Figure 6 Enlarged structural diagram of the centrally reinforced column;

[0025] Figure 8 yes Figure 1 Enlarged schematic diagram of the middle side pressure plate;

[0026] The following components are labeled in the attached diagram: 1. Arc-shaped connecting plate body; 2. Moving platform; 3. Drive shaft; 4. Drill bit; 5. Adjustment plate; 6. Polygonal tool holder; 7. Arc-shaped tool body; 8. Reinforcing column; 9. Mounting plate; 10. Spring; 11. Fixing plate; 12. Half gear; 13. Base frame; 14. Support leg; 15. Leaf spring; 16. Limiting plate; 17. Main motor; 18. Positioning plate; 19. Side pressure plate; 20. Back plate; 21. Sliding column; 22. Sub-plate; 23. Sliding sleeve; 24. Connecting frame; 25. Cylinder; 26. Bidirectional motor; 27. Dual output reducer; 28. Threaded rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0030] like Figures 1 to 3As shown, the present invention discloses an automatic drilling device for an arc-shaped connecting plate of a microwave communication tower, comprising an arc-shaped connecting plate body 1 and two moving platforms 2. The arc-shaped surface of the arc-shaped connecting plate body 1 is a vertical surface. The two moving platforms 2 are respectively located on the upper and lower sides of the arc-shaped connecting plate body 1, and the two moving platforms 2 are in opposite directions. A drive shaft 3 is provided on the moving platform 2, and the drive shaft 3 passes through the moving platform 2 and is slidably connected. A drill bit 4 is provided at the end of the drive shaft 3 facing the arc-shaped connecting plate body 1. Adjustment plates 5 are inclined on both the left and right sides of the drill bit 4, and the inclination directions of the two adjustment plates 5 are opposite. The adjustment plates 5 are set on the moving platform 2, and the outer ends of the two adjustment plates 5 synchronously squeeze the arc-shaped inner wall of the arc-shaped connecting plate body 1, thereby adjusting the arc-shaped position of the arc-shaped connecting plate body 1, so that the center of the arc of the arc-shaped connecting plate body 1 is located between the two adjustment plates 5 and coincides with the vertical line where the drill bit 4 is located.

[0031] Specifically, the arc-shaped connecting plate body 1 is composed of multiple arcs, and these arcs are distributed sequentially vertically. When drilling is required on the arc-shaped positions of the arc-shaped connecting plate body 1, the two moving platforms 2 are controlled to move closer to each other. The moving platforms 2 drive the transmission shaft 3, drill bit 4, and adjusting plate 5 on them to move synchronously. The outer ends of the two adjusting plates 5 on the moving platforms 2 simultaneously press against the inner or outer arc-shaped wall of the arc-shaped connecting plate body 1. At this time, the center of the arc of the arc-shaped connecting plate body 1 shifts towards the two adjusting plates 5, and finally makes the center of the arc of the arc-shaped connecting plate body 1 coincide with the vertical line where the drill bit 4 is located. At this time, the positioning work of the two adjusting plates 5 on the arc-shaped connecting plate body 1 is completed. The upper and lower sides of the arc-shaped connecting plate body 1 are squeezed and positioned, thereby fixing the arc-shaped connecting plate body 1 in the vertical direction simultaneously. This achieves the synchronous positioning and fixing of the arc-shaped connecting plate body 1. The drive shafts 3 on the two moving platforms 2 are pushed to move synchronously toward the arc-shaped connecting plate body 1. The two drill bits 4 move relative to each other and their movement direction is along the radial direction of the arc of the arc-shaped connecting plate body 1. The drive shaft 3 rotates, and the drive shaft 3 drives the drill bits 4 to rotate and drill holes in the arc-shaped connecting plate body 1 through the drill bits 4. The two drill bits 4 drill holes in the arc-shaped connecting plate body 1 relative to each other, thereby drilling holes in the arc-shaped connecting plate body 1 from two directions, thus realizing the automatic hole opening work of the arc-shaped connecting plate body 1.

[0032] Since the longitudinal thickness of the arc-shaped connecting plate body 1 is smaller than its vertical width, the drilling depth of a single drill bit 4 can be effectively reduced by the relative drilling treatment of the two drill bits 4. This avoids the drill bit 4 from swaying and causing the hole to tilt and shift when the drilling depth is large, and also prevents the drill bit 4 from breaking. This facilitates the protection of the drill bit 4 and improves the stability of the drilling operation.

[0033] By using two adjusting plates 5 to simultaneously press and position the inner or outer wall of the arc-shaped connecting plate body 1, the position of the arc-shaped connecting plate body 1 can be quickly adjusted so that its arc center coincides with the vertical line where the drill bit 4 is located. This makes it easier for the drill bit 4 to drill holes in the arc-shaped connecting plate body 1 along the radial direction of the arc, effectively improving drilling accuracy and processing quality, while also effectively reducing drilling difficulty and simplifying the operation.

[0034] like Figures 4 to 6 As shown, as a preferred embodiment of the above, the drill bit 4 is composed of a polygonal tool holder 6 and a plurality of arc-shaped cutter bodies 7 mounted on the end face of the polygonal tool holder 6 facing the arc-shaped connecting plate body 1. The plurality of arc-shaped cutter bodies 7 are arranged in a ring, and the positions of the plurality of arc-shaped cutter bodies 7 on the two drill bits 4 are staggered.

[0035] The bottom of the drive shaft 3 has a polygonal locking hole, the polygonal tool holder 6 is slidably inserted into the polygonal locking hole, and the polygonal tool holder 6 is fastened to the drive shaft 3 by bolts.

[0036] Specifically, the drill bit 4 can be quickly fixed on the drive shaft 3 using the polygonal tool holder 6 and bolts. Multiple arc-shaped cutter bodies 7 can perform cutting and drilling on the arc-shaped connecting plate body 1. At the same time, since the positions of the multiple arc-shaped cutter bodies 7 on the two drill bits 4 are staggered, when the two drill bits 4 approach each other, the multiple arc-shaped cutter bodies 7 on the two drill bits 4 intersect each other. At this time, the poor parts of the multiple arc-shaped cutter bodies 7 on the two drill bits 4 can form a complete circle. By adopting this method, it is convenient to perform comprehensive cutting on the opening tail material at the docking point of the two drill bits 4, avoid tail material residue, and improve the integrity of the inner wall of the drill hole.

[0037] like Figures 6 to 7 As shown, in a preferred embodiment, a reinforcing column 8 is provided between multiple arc-shaped cutter bodies 7 on the drill bit 4. The reinforcing column 8 slides through the polygonal cutter holder 6. Multiple guide grooves are provided on the outer wall of the reinforcing column 8. Guide ribs are provided on the side wall of the arc-shaped cutter body 7 facing the reinforcing column 8. The guide ribs are slidably installed in the guide grooves, so that the multiple arc-shaped cutter bodies 7 guide the reinforcing column 8. At the same time, the reinforcing column 8 supports the multiple arc-shaped cutter bodies 7 in the opposite direction. Multiple cutting grooves are provided on the end of the reinforcing column 8 facing the arc-shaped connecting plate body 1.

[0038] A mounting plate 9 is fixed to the outer end of the reinforcing column 8, and a spring 10 is connected between the mounting plate 9 and the polygonal knife holder 6.

[0039] Specifically, in its natural state, the end of the reinforcing column 8 facing the arc-shaped connecting plate body 1 is close to the outer end of the arc-shaped cutter body 7. When the drill bit 4 rotates, the reinforcing column 8, the mounting plate 9, and the spring 10 rotate synchronously. When multiple arc-shaped cutters 7 drill holes in the arc-shaped connecting plate body 1, uncuttable columnar tailings will be generated between the multiple arc-shaped cutters 7. At this time, the cutting position of the reinforcing column 8 contacts the columnar tailings. Since the reinforcing column 8 rotates synchronously and rotates relative to the tailings, the reinforcing column 8 can cut the columnar tailings, thereby preventing the tailings from remaining between the multiple arc-shaped cutters 7.

[0040] When the two drill bits 4 cross each other, the two drill bits 4 rotate synchronously, causing the two reinforcing columns 8 to rotate synchronously and remain relatively stationary. At this time, as the drill bits 4 move, the two reinforcing columns 8 abut against each other, so the reinforcing columns 8 slide on the drill bits 4. The reinforcing columns 8 push the spring 10 through the mounting plate 9 to produce elastic deformation, thereby achieving the mutual cross-working of multiple arc-shaped cutter bodies 7 on the two drill bits 4 while avoiding tail material between multiple arc-shaped cutter bodies 7. At the same time, the reinforcing columns 8 can play a supporting role for the arc-shaped cutter bodies 7.

[0041] like Figure 3 As shown, in a preferred embodiment, the drill bit 4 is provided with fixing plates 11 on both the front and rear sides. The fixing plates 11 are fixed on the moving platform 2. Half gears 12 are rotatably provided on both the left and right sides of the fixing plates 11. The two half gears 12 mesh with each other. The adjusting plate 5 is fixed on the half gears 12. The fixing plates 11 and the half gears 12 are fastened together by bolts.

[0042] Specifically, since there is a difference in the arc radius on the arc-shaped connecting plate body 1, it is necessary to adjust the opening size of the two adjusting plates 5. Loosen the bolts between the fixing plate 11 and the half gear 12. Since the two adjusting plates 5 are connected by the two half gears 12 on the fixing plate 11, the two adjusting plates 5 are in a state of synchronous rotation when rotating, thus ensuring that the drill bit 4 is always located on the vertical surface in the middle of the two adjusting plates 5 when the two adjusting plates 5 are adjusted, which makes it convenient to fix the relative position of the two adjusting plates 5 and the drill bit 4.

[0043] like Figures 2 to 3 As shown, as a preferred embodiment of the above, it also includes two base frames 13, which are located on the outside of the two mobile platforms 2 respectively. The mobile platform 2 is provided with multiple support legs 14, the outer ends of which slide through the base frames 13. Multiple leaf springs 15 are connected between the mobile platform 2 and the base frames 13. The outer ends of the support legs 14 are provided with limiting plates 16. A main motor 17 is fixed on the base frame 13, and the output end of the main motor 17 is connected to the transmission shaft 3.

[0044] Specifically, the base frame 13 is pushed to move toward the arc-shaped connecting plate body 1. The base frame 13 can drive the moving platform 2 to move synchronously through the leaf spring 15. When the adjusting plate 5 contacts the arc-shaped inner or outer wall of the arc-shaped connecting plate body 1, the adjusting plate 5 stops moving. At this time, the base frame 13 continues to move, the leaf spring 15 undergoes elastic deformation, and the support leg 14 guides the base frame 13 and the moving platform 2. The base frame 13 pushes the transmission shaft 3 and the drill bit 4 to move toward the arc-shaped connecting plate body 1. The main motor 17 can drive the transmission shaft 3 and the drill bit 4 to rotate, so that the drill bit 4 can drill holes in the arc-shaped connecting plate body 1, realizing the working effect of positioning before drilling. The limiting plate 16 can limit the outer end of the support leg 14, thereby limiting the position of the moving platform 2 on the base frame 13.

[0045] like Figure 8 As shown, as a preferred embodiment of the above, it also includes a positioning plate 18. The positioning plate 18 is provided with side pressure plates 19 on both the front and rear sides. The side pressure plates 19 are rotatably connected to the positioning plate 18. The end of the arc-shaped connecting plate body 1 contacts the side wall of the positioning plate 18. The two side pressure plates 19 respectively contact the front and rear outer walls of the arc-shaped connecting plate body 1.

[0046] Specifically, the positioning plate 18 can be used to position the arc-shaped connecting plate body 1, thereby positioning the opening position of the arc-shaped surface on the arc-shaped connecting plate body 1. The two side pressure plates 19 can be used to position the arc-shaped connecting plate body 1 in the front-back direction on the horizontal plane, so that the arc-shaped connecting plate body 1 can complete the drilling work while maintaining the vertical direction, avoiding the arc-shaped connecting plate body 1 from shifting or tilting, and improving the stability of the drilling work.

[0047] like Figure 8 As shown, as a preferred embodiment of the above, it also includes a back plate 20, a sliding column 21 is provided laterally on the outer side wall of the positioning plate 18, the outer end of the sliding column 21 slides through the back plate 20, a sub-plate 22 is provided on the outer end of the sliding column 21, the sub-plate 22 is fixedly connected to the back plate 20 by bolts and lock nuts, a sliding sleeve 23 is slidably sleeved on the outer wall of the sliding column 21, a connecting frame 24 is rotatably provided on both the front and rear sides of the sliding sleeve 23, the outer end of the connecting frame 24 is rotatably connected to the outer wall of the side pressure plate 19, and a cylinder 25 is connected between the sliding sleeve 23 and the positioning plate 18.

[0048] Specifically, the positions of the sub-plate 22 and the slide column 21 can be locked and adjusted by the bolts and lock nuts between the sub-plate 22 and the back plate 20, thereby locking and adjusting the position of the positioning plate 18. The cylinder 25 can push the sliding sleeve 23 to slide on the slide column 21. The sliding sleeve 23 can drive the two side pressure plates 19 to move synchronously through the two connecting brackets 24, so that the two side pressure plates 19 can simultaneously squeeze and fix the front and rear side walls of the arc-shaped connecting plate body 1, which facilitates the positioning of the arc-shaped connecting plate body 1 in the longitudinal direction.

[0049] like Figure 1 As shown, in a preferred embodiment, the base frame 13 is vertically slidably mounted on the back plate 20. A bidirectional motor 26 is fixed in the middle of the back plate 20. A dual-output reducer 27 is driven on the output ends of both the front and rear sides of the bidirectional motor 26. The dual-output reducer 27 is fixed on the back plate 20. A threaded rod 28 is provided on the output ends of both the upper and lower sides of the dual-output reducer 27. The threads of the two threaded rods 28 have opposite directions. The outer ends of the threaded rods 28 pass through the base frame 13 and are threadedly connected.

[0050] Specifically, the bidirectional motor 26 drives the threaded rod 28 to rotate through the dual-output reducer 27. The two threaded rods 28 on the dual-output reducer 27 can drive the two base frames 13 to move synchronously in opposite directions, thereby causing the two drill bits 4 to move closer or further away from each other synchronously.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic hole-drilling device for the arc-shaped connecting plate of a microwave communication tower, characterized in that, The system includes an arc-shaped connecting plate body (1) and two moving platforms (2). The arc-shaped surface of the arc-shaped connecting plate body (1) is a vertical surface. The two moving platforms (2) are located on the upper and lower sides of the arc-shaped connecting plate body (1) and are in opposite directions. A transmission shaft (3) is provided on the moving platform (2). The transmission shaft (3) passes through the moving platform (2) and is slidably connected. A drill bit (4) is provided on the end of the transmission shaft (3) facing the arc-shaped connecting plate body (1). Adjustment plates (5) are inclined on both sides of the drill bit (4). The two adjustment plates (5) are inclined in opposite directions. The adjustment plates (5) are set on the moving platform (2). The outer ends of the two adjustment plates (5) synchronously squeeze the arc-shaped inner wall of the arc-shaped connecting plate body (1) to adjust the arc-shaped position of the arc-shaped connecting plate body (1) so that the center of the arc-shaped connecting plate body (1) is located between the two adjustment plates (5) and coincides with the vertical line where the drill bit (4) is located. The drill bit (4) consists of a polygonal tool holder (6) and multiple arc-shaped cutter bodies (7) mounted on the end face of the polygonal tool holder (6) facing the arc-shaped connecting plate body (1). The multiple arc-shaped cutter bodies (7) are arranged in a ring, and the positions of the multiple arc-shaped cutter bodies (7) on the two drill bits (4) are staggered. The bottom of the drive shaft (3) is provided with a polygonal locking hole, the polygonal tool holder (6) is slidably inserted into the polygonal locking hole, and the polygonal tool holder (6) is fastened to the drive shaft (3) by bolts; A reinforcing column (8) is provided between multiple arc-shaped cutter bodies (7) on the drill bit (4). The reinforcing column (8) slides through the polygonal cutter holder (6). Multiple guide grooves are provided on the outer wall of the reinforcing column (8). Guide ribs are provided on the side wall of the arc-shaped cutter body (7) facing the reinforcing column (8). The guide ribs are slidably installed in the guide grooves, so that the multiple arc-shaped cutter bodies (7) guide the reinforcing column (8). At the same time, the reinforcing column (8) supports the multiple arc-shaped cutter bodies (7) in the opposite direction. Multiple cutting grooves are provided at the end of the reinforcing column (8) facing the arc-shaped connecting plate body (1). A mounting plate (9) is fixed to the outer end of the reinforcing column (8), and a spring (10) is connected between the mounting plate (9) and the polygonal knife holder (6). The drill bit (4) is provided with a fixing plate (11) on both the front and rear sides. The fixing plate (11) is fixed on the moving platform (2). The fixing plate (11) is provided with a half gear (12) on both the left and right sides. The two half gears (12) mesh with each other. The adjusting plate (5) is fixed on the half gear (12). The fixing plate (11) and the half gear (12) are fastened together by bolts.

2. The automatic hole-drilling device for the arc-shaped connecting plate of a microwave communication tower as described in claim 1, characterized in that, It also includes two base frames (13), which are located on the outside of the two mobile platforms (2). The mobile platform (2) is provided with multiple legs (14), and the outer ends of the legs (14) slide through the base frames (13). Multiple leaf springs (15) are connected between the mobile platform (2) and the base frames (13). The outer ends of the legs (14) are provided with limit plates (16). The base frames (13) are fixed with a main motor (17), and the output end of the main motor (17) is connected to the transmission shaft (3).

3. The automatic hole-drilling device for the arc-shaped connecting plate of a microwave communication tower as described in claim 2, characterized in that, It also includes a positioning plate (18), with side pressure plates (19) on both the front and rear sides of the positioning plate (18). The side pressure plates (19) are rotatably connected to the positioning plate (18), and the end of the arc-shaped connecting plate body (1) contacts the side wall of the positioning plate (18). The two side pressure plates (19) respectively contact the front and rear outer walls of the arc-shaped connecting plate body (1).

4. The automatic hole-drilling device for the arc-shaped connecting plate of a microwave communication tower as described in claim 3, characterized in that, It also includes a back plate (20), a sliding column (21) is provided horizontally on the outer wall of the positioning plate (18), the outer end of the sliding column (21) slides through the back plate (20), the outer end of the sliding column (21) is provided with a sub-plate (22), the sub-plate (22) is fixedly connected to the back plate (20) by bolts and lock nuts, a sliding sleeve (23) is provided on the outer wall of the sliding column (21), a connecting frame (24) is rotatably provided on both the front and rear sides of the sliding sleeve (23), the outer end of the connecting frame (24) is rotatably connected to the outer wall of the side pressure plate (19), and a cylinder (25) is connected between the sliding sleeve (23) and the positioning plate (18).

5. The automatic hole-drilling device for the arc-shaped connecting plate of a microwave communication tower as described in claim 4, characterized in that, The base frame (13) is vertically slidably mounted on the back plate (20). A bidirectional motor (26) is fixed in the middle of the back plate (20). A dual-output reducer (27) is driven on the output ends of the bidirectional motor (26) on both the front and rear sides. The dual-output reducer (27) is fixed on the back plate (20). A threaded rod (28) is provided on the output ends of the dual-output reducer (27) on both the upper and lower sides. The threads of the two threaded rods (28) are opposite in direction. The outer end of the threaded rod (28) passes through the base frame (13) and is threadedly connected.

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