Drilling device for deep machining of flange plate

Abstract

The invention relates to the field of flange plate machining, in particular to a drilling device for deep machining of a flange plate, which comprises a base, a mounting frame, a vertical air cylinder, a drill bit, a workbench, an operation table and a clamping air cylinder, a positioning mechanism is arranged on the base, and the positioning mechanism comprises a positioning plate arranged below the operation table and the flange plate; a first guide rod and a second guide rod are fixedly connected to the positioning plate, a guide hole allowing the first guide rod to be inserted therein is formed in the operation table, the second guide rod can be inserted into a bolt hole drilled in the flange plate, and a driving mechanism used for driving the positioning plate to move is installed on the workbench. The problem that the multi-hole-site machining precision of the flange plate is affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of flange processing, and in particular, to a drilling device for deep processing of flanges. Background Art

[0002] A flange, also known as a blind flange, is a part used for connecting shafts to each other, for connecting between pipe ends, and there are also flanges used at the inlets and outlets of equipment for connecting two pieces of equipment, such as a reducer flange. A gasket is placed between two flanges and then fastened with bolts. Therefore, a plurality of connection holes are provided on the flange for fastening and connecting two flanges with bolts.

[0003] In related technologies, a drilling device for flange processing includes a base, on which a mounting frame is fixedly connected. A vertical cylinder is fixedly connected to the mounting frame. A linear movement mechanism is installed at the extending end of the vertical cylinder, and a drill bit is installed on the linear movement mechanism. A workbench is fixedly connected to the base, and an operating table is rotatably installed on the workbench. A rotating motor is fixedly connected to the workbench, and a gear is fixedly connected to the output shaft of the rotating motor. An internal gear ring meshing with the gear is fixedly connected to the operating table. The flange is placed on the operating table. When the rotating motor is started, the rotating motor drives the flange to rotate, so as to facilitate the drill bit to uniformly drill holes on the flange. Two clamping cylinders are fixedly connected to the operating table and are arranged opposite to each other. The extending ends of the two clamping cylinders are both fixedly connected with abutting plates, and the abutting plates are in contact with the flange to fix the flange.

[0004] In view of the above-mentioned related technologies, during the continuous drilling process of the flange, the flange is fixed only by the friction between the abutting plate and the flange. If the acting force applied by the abutting plate is too large, it may damage the flange. If the acting force is too small, relative sliding will occur between the flange and the operating table during the rotation of the operating table driving the flange, resulting in the deviation of the preset drilling positions on the flange, affecting the machining accuracy of multiple holes on the flange. Summary of the Invention

[0005] In order to solve the problem of affecting the machining accuracy of multiple holes on the flange, the present invention provides a drilling device for deep processing of flanges.

[0006] The drilling device for deep processing of flanges provided by the present invention adopts the following technical solutions: A drilling device for deep processing of a flange, comprising a base, a mounting frame, a vertical cylinder, a drill bit, a workbench, an operating table and a clamping cylinder. A positioning mechanism is provided on the base. The positioning mechanism includes a positioning plate arranged below the operating table and the flange. The positioning plate is fixedly connected with a first guide rod and a second guide rod. A guide hole for inserting the first guide rod is formed on the operating table. The second guide rod can be inserted into the bolt hole drilled on the flange. A driving mechanism for driving the positioning plate to move is installed on the workbench.

[0007] Preferably, an installation plate is slidably installed on the workbench. A first arc-shaped chute is formed on the installation plate. A first slider is placed in the first arc-shaped chute. The first slider is fixedly connected with the positioning plate. A first spring is fixedly connected between the positioning plate and the installation plate. There are multiple guide holes, and the multiple guide holes are evenly distributed in a circle around the center of the operating table. A rubber pad is sleeved on the second guide rod. The driving mechanism can drive the installation plate to move.

[0008] Preferably, a rotating motor is fixedly connected to the workbench. A rotating gear is fixedly connected to the output shaft of the rotating motor. A first toothed ring meshing with the rotating gear is fixedly connected to the operating table. The driving mechanism includes a driving reciprocating screw rod rotatably installed on the workbench. A conveyor belt is sleeved on the output shaft of the rotating motor and the driving reciprocating screw rod. The driving reciprocating screw rod penetrates through the installation plate and is threadedly connected with the installation plate.

[0009] Preferably, a cleaning mechanism is arranged above the operating table. A fixed rod is fixedly connected to the workbench. A fixing plate is fixedly connected to the fixed rod. A placing plate is installed on the fixing plate. The cleaning mechanism includes a cleaning reciprocating screw rod rotatably installed on the placing plate. A threaded cylinder is sleeved on the cleaning reciprocating screw rod. A cleaning plate capable of contacting the flange is fixedly connected to the threaded cylinder. A cleaning guide rod penetrating through the threaded cylinder is fixedly connected to the placing plate. A transmission mechanism is installed on the fixed rod. The operating table can drive the cleaning reciprocating screw rod to rotate through the transmission mechanism.

[0010] Preferably, a second arc-shaped chute is formed on the fixing plate. A second slider is placed in the second arc-shaped chute. The second slider is fixedly connected with the placing plate. The positioning plate and the placing plate are fixedly connected through a telescopic rod. An arc-shaped sliding hole for the telescopic rod to pass through is formed on the operating table.

[0011] Preferably, the transmission mechanism includes a transmission sleeve sleeved on a fixed rod. A transmission gear is fixedly connected to the transmission sleeve. A second toothed ring meshing with the transmission gear is fixedly connected to the operation table. A transmission shaft is rotatably installed on the placement plate. The transmission shaft and the cleaning reciprocating screw are connected through a bevel gear set. A half gear is fixedly connected to the transmission sleeve. A first gear meshing with the half gear is fixedly connected to the transmission shaft.

[0012] Preferably, a dust collection box located below the flange is fixedly connected to the base.

[0013] Preferably, a scraping mechanism is installed on the base. The scraping mechanism includes a scraping guide rod fixedly connected to the base. A connecting plate is slidably installed on the scraping guide rod. A connecting port is formed in the connecting plate. A bidirectional screw is rotatably installed in the connecting port. Two scraping plates are slidably installed in the connecting port. The two scraping plates are respectively located on both sides of the second guide rod. Two ends of the bidirectional screw respectively penetrate into the scraping plates and are respectively threadedly connected to the scraping plates. A transmission component is installed on the base. The vertical air cylinder can drive the connecting plate to move through the transmission component. A moving component for driving the two scraping plates to approach or move away from each other is installed on the scraping guide rod.

[0014] Preferably, the transmission component includes a first screw rotatably installed on the base. The first screw penetrates into the connecting plate and is threadedly connected to the connecting plate. A second screw is fixedly connected to the first screw. An extending end of the vertical air cylinder is fixedly connected to a transmission plate. The second screw penetrates into the transmission plate and is threadedly connected to the transmission plate.

[0015] Preferably, the moving component includes a support plate fixedly connected to the scraping guide rod. A rack is fixedly connected to the support plate. A moving gear meshing with the rack is fixedly connected to the bidirectional screw.

[0016] In summary, the present invention includes at least the following beneficial technical effects: 1. When continuous drilling of the flange is required, first place the flange on the operation table, then use the clamping air cylinder to clamp and limit the flange, and finally use the drill bit to drill the flange. After one hole position is processed, start the driving mechanism. The driving mechanism drives the positioning plate to move. The positioning plate drives the first guide rod and the second guide rod to move. The first guide rod is inserted into the guiding hole, and the second guide rod is inserted into the bolt hole drilled in the flange. Rotate the operation table. The operation table drives the flange to rotate. At the same time, the positioning plate, the first guide rod and the second guide rod are used in cooperation to limit the operation table and the flange, avoiding the relative sliding between the flange and the operation table and solving the problem of affecting the machining accuracy of multiple hole positions of the flange. 2. Start the driving mechanism. The driving mechanism drives the mounting plate to move, and the mounting plate drives the positioning plate to move, so that the first guide rod is inserted into the guiding hole, and the second guide rod is inserted into the bolt hole drilled on the flange. During the insertion of the second guide rod, the rubber pad can clean the debris and burrs in the bolt hole. During the rotation of the flange, the positioning plate slides on the mounting plate. When the second guide rod disengages from the bolt hole, the first spring drives the positioning plate to return to the initial position, and the second guide rod can continue to clean the next bolt hole; 3. During the rotation of the operating platform, the operating platform drives the cleaning reciprocating screw to rotate through the transmission mechanism. The cleaning reciprocating screw drives the threaded cylinder to move, and the threaded cylinder drives the cleaning plate to move. The cleaning plate cleans the metal debris on the surface of the flange. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the drilling device for deep processing of the flange in the embodiment of the present invention.

[0018] Figure 2 is the structural schematic diagram of the operating platform in the embodiment of the present invention.

[0019] Figure 3 is the structural schematic diagram of the positioning mechanism in the embodiment of the present invention.

[0020] Figure 4 is the structural schematic diagram of the driving mechanism in the embodiment of the present invention.

[0021] Figure 5 is the structural schematic diagram of the cleaning mechanism in the embodiment of the present invention.

[0022] Figure 6 is the structural schematic diagram of the mounting plate in the embodiment of the present invention.

[0023] Figure 7 is the structural schematic diagram of the transmission mechanism in the embodiment of the present invention.

[0024] Figure 8 is the structural schematic diagram of the scraping mechanism in the embodiment of the present invention.

[0025] Figure 9 is the structural schematic diagram of the moving part in the embodiment of the present invention.

[0026] Description of the reference numerals: 1. Base; 11. Mounting frame; 12. Vertical cylinder; 13. Drill bit; 14. Workbench; 141. Fixed rod; 142. Fixed plate; 143. Placing plate; 15. Operating table; 151. Guide hole; 152. First toothed ring; 153. Second toothed ring; 16. Clamping cylinder; 17. Rotating motor; 171. Rotating gear; 18. Dust collecting box; 2. Positioning mechanism; 21. Positioning plate; 22. First guide rod; 23. Second guide rod; 24. Mounting plate; 25. First spring; 3. Driving mechanism; 31. Driving reciprocating screw; 32. Conveyor belt; 4. Cleaning mechanism; 41. Cleaning reciprocating screw; 42. Threaded cylinder; 43. Cleaning plate; 44. Telescopic rod; 5. Transmission mechanism; 51. Transmission sleeve; 511. Transmission gear; 512. Half gear; 52. Transmission shaft; 521. First gear; 6. Scraping mechanism; 61. Scraping guide rod; 62. Connecting plate; 63. Bidirectional screw; 631. Moving gear; 64. Scraper; 65. First screw; 66. Second screw; 67. Transmission plate; 68. Support plate; 69. Rack. Detailed implementation mode

[0027] The following will Figure 1 - attached Figure 9 further elaborate on the present invention.

[0028] An embodiment of the present invention discloses a drilling device for deep processing of flange plates. Refer to Figures 1 to 3, The drilling device for deep processing of flange plates includes a base 1, a mounting frame 11, a vertical cylinder 12, a drill bit 13, a workbench 14, an operating table 15, and a clamping cylinder 16. The mounting frame 11 is fixedly connected to the base 1, the vertical cylinder 12 is fixedly connected to the mounting frame 11, a linear movement mechanism is installed on the extending end of the vertical cylinder 12, the linear movement mechanism is connected to the drill bit 13, the workbench 14 is fixedly connected to the base 1, the operating table 15 is rotatably installed on the workbench 14, the clamping cylinder 16 is fixedly connected to the operating table 15, there are two clamping cylinders 16 arranged back to back, a clamping plate is fixedly connected to the extending end of the clamping cylinder 16, a positioning mechanism 2 is arranged on the base 1, the positioning mechanism 2 includes a positioning plate 21 arranged below the operating table 15 and the flange plate, a first guide rod 22 and a second guide rod 23 are fixedly connected to the positioning plate 21, a guide hole 151 for inserting the first guide rod 22 is opened on the operating table 15, the second guide rod 23 can be inserted into the bolt hole drilled on the flange plate, and a driving mechanism 3 for driving the movement of the positioning plate 21 is installed on the workbench 14; when continuous drilling of the flange plate is required, first place the flange plate on the operating table 15, then use the clamping cylinder 16 to clamp and limit the flange plate, and finally use the drill bit 13 to drill the flange plate. When one hole position is processed, start the driving mechanism 3, the driving mechanism 3 drives the positioning plate 21 to move, the positioning plate 21 drives the first guide rod 22 and the second guide rod 23 to move, the first guide rod 22 is inserted into the guide hole 151, the second guide rod 23 is inserted into the bolt hole drilled on the flange plate, rotate the operating table 15, the operating table 15 drives the flange plate to rotate, and at the same time, the positioning plate 21, the first guide rod 22 and the second guide rod 23 are used in cooperation to limit the operating table 15 and the flange plate, avoiding the occurrence of relative sliding between the flange plate and the operating table 15 and solving the problem of affecting the processing accuracy of multiple hole positions of the flange plate.

[0029] Refer to Figures 2 to 6, a mounting plate 24 is slidably mounted on the workbench 14. A first arc-shaped chute is formed in the mounting plate 24. A first slider is placed in the first arc-shaped chute. The first slider is fixedly connected to the positioning plate 21. A first spring 25 is fixedly connected between the positioning plate 21 and the mounting plate 24. A plurality of guiding holes 151 are provided. The plurality of guiding holes 151 are evenly distributed in a circumferential manner around the center of the operating table 15. A rubber pad is sleeved on the second guide rod 23. The driving mechanism 3 can drive the mounting plate 24 to move. When the driving mechanism 3 is started, the driving mechanism 3 drives the mounting plate 24 to move. The mounting plate 24 drives the positioning plate 21 to move, so that the first guide rod 22 is inserted into the guiding hole 151, and the second guide rod 23 is inserted into the bolt hole drilled in the flange. During the insertion of the second guide rod 23, the rubber pad can clean the debris and burrs in the bolt hole. During the rotation of the flange, the positioning plate 21 slides on the mounting plate 24. When the second guide rod 23 disengages from the bolt hole, the first spring 25 drives the positioning plate 21 to return to the initial position, and the second guide rod 23 can continue to clean the next bolt hole.

[0030] Refer to Figures 3 to 6 , a rotating motor 17 is fixedly connected to the workbench 14. A rotating gear 171 is fixedly connected to the output shaft of the rotating motor 17. A first toothed ring 152 meshing with the rotating gear 171 is fixedly connected to the operating table 15. The driving mechanism 3 includes a driving reciprocating screw 31 rotatably mounted on the workbench 14. The output shaft of the rotating motor 17 and the driving reciprocating screw 31 are sleeved with a conveyor belt 32. The driving reciprocating screw 31 passes through the mounting plate 24 and is threadedly connected to the mounting plate 24. When the rotating motor 17 is started, the rotating motor 17 drives the rotating gear 171 to rotate. The rotating gear 171 drives the first toothed ring 152 to rotate. The first toothed ring 152 drives the operating table 15 to rotate. The operating table 15 drives the flange to rotate. At the same time, the rotating motor 17 drives the driving reciprocating screw 31 to rotate through the conveyor belt 32, and the driving reciprocating screw 31 drives the mounting plate 24 to move reciprocally.

[0031] Refer to Figures 3 to 7, a cleaning mechanism 4 is provided above the operating table 15. A fixed rod 141 is fixedly connected to the workbench 14. A fixing plate 142 is fixedly connected to the fixed rod 141. A placing plate 143 is installed on the fixing plate 142. The cleaning mechanism 4 includes a cleaning reciprocating screw 41 rotatably installed on the placing plate 143. A threaded cylinder 42 is sleeved on the cleaning reciprocating screw 41. A cleaning plate 43 capable of contacting the flange is fixedly connected to the threaded cylinder 42. A cleaning guide rod passing through the threaded cylinder 42 is fixedly connected to the placing plate 143. A transmission mechanism 5 is installed on the fixed rod 141. The operating table 15 can drive the cleaning reciprocating screw 41 to rotate through the transmission mechanism 5; during the rotation of the operating table 15, the operating table 15 drives the cleaning reciprocating screw 41 to rotate through the transmission mechanism 5. The cleaning reciprocating screw 41 drives the threaded cylinder 42 to move. The threaded cylinder 42 drives the cleaning plate 43 to move. The cleaning plate 43 cleans the metal debris on the surface of the flange.

[0032] Refer to Figures 5 to 7 , a second arc-shaped sliding groove is formed in the fixing plate 142. A second sliding block is placed in the second arc-shaped sliding groove. The second sliding block is fixedly connected to the placing plate 143. The positioning plate 21 and the placing plate 143 are fixedly connected through a telescopic rod 44. An arc-shaped sliding hole for the telescopic rod 44 to pass through is formed in the operating table 15; during the rotation of the operating table 15, the operating table 15 drives the positioning plate 21 to slide. The positioning plate 21 drives the telescopic rod 44 to slide. The telescopic rod 44 drives the placing plate 143 to slide. The placing plate 143 drives the cleaning plate 43 to slide, so that the cleaning plate 43 can slide along the radial direction of the flange to clean the debris around the bolt hole.

[0033] Refer to Figure 5 and Figure 7 , the transmission mechanism 5 includes a transmission sleeve 51 sleeved on the fixed rod 141. A transmission gear 511 is fixedly connected to the transmission sleeve 51. A second tooth ring 153 meshing with the transmission gear 511 is fixedly connected to the operating table 15. A transmission shaft 52 is rotatably installed on the placing plate 143. The transmission shaft 52 and the cleaning reciprocating screw 41 are connected through a bevel gear set. A half gear 512 is fixedly connected to the transmission sleeve 51. A first gear 521 meshing with the half gear 512 is fixedly connected to the transmission shaft 52; during the rotation of the operating table 15, the operating table 15 drives the second tooth ring 153 to rotate. The second tooth ring 153 drives the transmission gear 511 to rotate. The transmission gear 511 drives the transmission sleeve 51 to rotate. The transmission sleeve 51 drives the half gear 512 to rotate. The half gear 512 drives the first gear 521 to rotate. The first gear 521 drives the transmission shaft 52 to rotate. The transmission shaft 52 drives the cleaning reciprocating screw 41 to rotate, so as to clean the flange.

[0034] Refer to Figure 1, a dust collection box 18 located below the flange is fixedly connected to the base 1. The debris after cleaning falls into the dust collection box 18, and the dust collection box 18 collects the debris.

[0035] Refer to Figures 1 to 9 , a scraping mechanism 6 is installed on the base 1. The scraping mechanism 6 includes a scraping guide rod 61 fixedly connected to the base 1. A connecting plate 62 is slidably installed on the scraping guide rod 61. A connecting port is formed on the connecting plate 62. A bidirectional screw 63 is rotatably installed in the connecting port. Two scraping plates 64 are slidably installed in the connecting port. The two scraping plates 64 are respectively located on both sides of the second guide rod 23. The two scraping plates 64 are both arc-shaped plates. The two ends of the bidirectional screw 63 respectively penetrate into the scraping plates 64 and are respectively threadedly connected to the scraping plates 64. A transmission component is installed on the base 1. The vertical cylinder 12 can drive the connecting plate 62 to move through the transmission component. A moving component for driving the two scraping plates 64 to approach or move away from each other is installed on the scraping guide rod 61; during the process of the vertical cylinder 12 driving the drill bit 13 to move downward, the vertical cylinder 12 drives the connecting plate 62 to move downward through the transmission component. At the same time, the moving component drives the two scraping plates 64 to approach each other and contact the second guide rod 23. The connecting plate 62 drives the two scraping plates 64 to move downward, and the two scraping plates 64 clean the rubber pad on the second guide rod 23, making the bolt holes on the flange cleaner.

[0036] Refer to Figures 1 to 9 , the transmission component includes a first screw 65 rotatably installed on the base 1. The first screw 65 penetrates into the connecting plate 62 and is threadedly connected to the connecting plate 62. A second screw 66 is fixedly connected to the first screw 65. The extending end of the vertical cylinder 12 is fixedly connected with a transmission plate 67. The second screw 66 penetrates into the transmission plate 67 and is threadedly connected to the transmission plate 67; when the vertical cylinder 12 is started, the vertical cylinder 12 drives the transmission plate 67 to move. The transmission plate 67 drives the second screw 66 to rotate. The second screw 66 drives the first screw 65 to rotate. The first screw 65 drives the connecting plate 62 to move, and then the rubber pad on the second guide rod 23 can be cleaned.

[0037] Refer to Figure 8 and Figure 9 , the moving component includes a support plate 68 fixedly connected to the scraping guide rod 61. A rack 69 is fixedly connected to the support plate 68. A moving gear 631 meshing with the rack 69 is fixedly connected to the bidirectional screw 63; during the movement of the connecting plate 62, the connecting plate 62 drives the bidirectional screw 63 to move. The bidirectional screw 63 drives the moving gear 631 to move. At the same time, the rack 69 drives the moving gear 631 to rotate. The moving gear 631 drives the bidirectional screw 63 to rotate. The bidirectional screw 63 drives the two scraping plates 64 to approach each other and contact the second guide rod 23.

[0038] The implementation principle of a drilling device for deep processing of a flange in an embodiment of the present invention is as follows: When continuous drilling of the flange is required, first place the flange on the operating table 15, then use the clamping cylinder 16 to clamp and limit the flange, and finally use the drill bit 13 to drill the flange. After a hole position is processed, start the rotating motor 17. The rotating motor 17 drives the operating table 15 to rotate. The operating table 15 drives the flange to rotate. At the same time, the rotating motor 17 drives the driving reciprocating screw 31 to rotate. The driving reciprocating screw 31 drives the mounting plate 24 to move. The mounting plate 24 drives the first guide rod 22 to insert into the guide hole 151, and the second guide rod 23 inserts into the bolt hole drilled in the flange. The rubber pad cleans the debris and burrs in the bolt hole. At the same time, the positioning plate 21, the first guide rod 22 and the second guide rod 23 are used in cooperation to limit the operating table 15 and the flange, avoiding the relative sliding between the flange and the operating table 15. And the operating table 15 drives the cleaning reciprocating screw 41 to rotate. The cleaning reciprocating screw 41 drives the cleaning plate 43 to clean the metal debris on the surface of the flange; When the drill bit 13 is aligned with the next hole position to be processed, the vertical cylinder 12 drives the drill bit 13 to move downward. At the same time, the vertical cylinder 12 drives the connecting plate 62 to move downward. The two scraping plates 64 approach each other and contact the second guide rod 23. The connecting plate 62 drives the two scraping plates 64 to move downward to clean the rubber pad on the second guide rod 23.

[0039] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A drilling device for deep processing of flanges, comprising a base (1), a mounting frame (11), a vertical cylinder (12), a drill bit (13), a workbench (14), an operating table (15) and a clamping cylinder (16), characterized in that: The base (1) is provided with a positioning mechanism (2), the positioning mechanism (2) comprising a positioning plate (21) arranged below the operating table (15) and the flange, a first guide rod (22) and a second guide rod (23) being fixedly connected to the positioning plate (21), a guide hole (151) for inserting the first guide rod (22) being provided on the operating table (15), the second guide rod (23) being insertable into a bolt hole drilled on the flange, and a driving mechanism (3) for driving the positioning plate (21) to move being installed on the workbench (14).

2. A flange deep processing drilling device according to claim 1, characterized in that: A mounting plate (24) is slidably mounted on the workbench (14), a first arc-shaped slide groove is provided on the mounting plate (24), a first slider is placed in the first arc-shaped slide groove, the first slider is fixedly connected to the positioning plate (21), a first spring (25) is fixedly connected between the positioning plate (21) and the mounting plate (24), a plurality of guide holes (151) are provided, and the plurality of guide holes (151) are evenly distributed around the center of the operating table (15), a rubber pad is sleeved on the second guide rod (23), and the driving mechanism (3) is capable of driving the mounting plate (24) to move.

3. A flange deep processing drilling device according to claim 2, characterized in that: The workbench (14) is fixedly connected to a rotating motor (17), the output shaft of the rotating motor (17) is fixedly connected to a rotating gear (171), the operating table (15) is fixedly connected to a first gear ring (152) meshing with the rotating gear (171), the driving mechanism (3) comprises a driving reciprocating screw (31) rotatably mounted on the workbench (14), a conveyor belt (32) is sleeved on the output shaft of the rotating motor (17) and the driving reciprocating screw (31), and the driving reciprocating screw (31) is inserted into a mounting plate (24) and is threadedly connected to the mounting plate (24).

4. A flange deep processing drilling device according to claim 3, characterized in that: A cleaning mechanism (4) is arranged above the operating table (15); a fixing rod (141) is fixedly connected to the working table (14); a fixing plate (142) is fixedly connected to the fixing rod (141); a placement plate (143) is mounted on the fixing plate (142); the cleaning mechanism (4) comprises a cleaning reciprocating screw (41) rotatably mounted on the placement plate (143); a threaded barrel (42) is sleeved on the cleaning reciprocating screw (41); a cleaning plate (43) capable of contacting a flange is fixedly connected to the threaded barrel (42); a cleaning guide rod penetrating the threaded barrel (42) is fixedly connected to the placement plate (143); a transmission mechanism (5) is mounted on the fixing rod (141); and the operating table (15) can drive the cleaning reciprocating screw (41) to rotate via the transmission mechanism (5).

5. A flange deep processing drilling device according to claim 4, characterized in that: The fixing plate (142) is provided with a second arc-shaped sliding groove, a second sliding block is placed in the second arc-shaped sliding groove, the second sliding block is fixedly connected to the placement plate (143), the positioning plate (21) and the placement plate (143) are fixedly connected via a telescopic rod (44), and the operating table (15) is provided with an arc-shaped sliding hole for the telescopic rod (44) to pass through.

6. A flange deep processing drilling device according to claim 5, characterized in that: The transmission mechanism (5) comprises a transmission sleeve (51) sleeved on a fixed rod (141), a transmission gear (511) being fixedly connected to the transmission sleeve (51), a second gear ring (153) meshing with the transmission gear (511) being fixedly connected to the operating table (15), a transmission shaft (52) being rotatably mounted on the placement plate (143), the transmission shaft (52) being connected to a cleaning reciprocating screw rod (41) via a bevel gear set, a half gear (512) being fixedly connected to the transmission sleeve (51), and a first gear (521) meshing with the half gear (512) being fixedly connected to the transmission shaft (52).

7. A flange deep processing drilling device according to claim 4, characterized in that: The base (1) is fixedly connected to a dust collecting box (18) located below the flange.

8. The flange deep processing drilling device according to claim 2, characterized in that: A scraping mechanism (6) is mounted on the base (1), the scraping mechanism (6) comprising a scraping guide rod (61) fixedly connected to the base (1), a connecting plate (62) slidably mounted on the scraping guide rod (61), a connecting port being provided on the connecting plate (62), a bidirectional screw rod (63) being rotatably mounted in the connecting port, two scraping plates (64) being slidably mounted in the connecting port, the two scraping plates (64) being respectively located on both sides of the second guide rod (23), the two ends of the bidirectional screw rod (63) respectively passing through the scraping plates (64) and being respectively threadedly connected to the scraping plates (64), a transmission component being mounted on the base (1), the vertical cylinder (12) being able to drive the connecting plate (62) to move via the transmission component, and a moving component for driving the two scraping plates (64) to move closer to or farther from each other being mounted on the scraping guide rod (61).

9. A flange deep processing drilling device according to claim 8, characterized in that: The transmission component comprises a first screw rod (65) rotatably mounted on the base (1); the first screw rod (65) is inserted into the connecting plate (62) and is threadedly connected to the connecting plate (62); a second screw rod (66) is fixedly connected to the first screw rod (65); a protruding end of the vertical cylinder (12) is fixedly connected to a transmission plate (67); the second screw rod (66) is inserted into the transmission plate (67) and is threadedly connected to the transmission plate (67).

10. The flange deep processing drilling device according to claim 8, characterized in that: The moving component comprises a support plate (68) fixedly connected to the scraping guide rod (61), a rack (69) fixedly connected to the support plate (68), and a moving gear (631) meshing with the rack (69) fixedly connected to the bidirectional screw rod (63).

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