Drilling machine tool for machining flanges

Abstract

The drilling machine tool comprises a bottom shell, a top shell is fixed to the top face of the bottom shell, a square opening is formed in the top shell, a bottom plate is fixed to the bottom end of the interior of the top shell, a square opening is formed in the middle of the top face of the bottom plate, and the square opening of the bottom plate is aligned with the square opening of the top shell. A frame plate is fixed to the top face of the bottom plate, two sliding grooves are formed in the top face of the frame plate, four groove holes are formed in the top face of the frame plate, an annular hole is formed in the middle of the top face of the frame plate, cross blocks are installed on the inner walls of the sliding grooves of the frame plate in a sliding mode, and arc blocks are fixed to the top faces of the cross blocks respectively. U-shaped blocks are fixed to the bottoms of the sides, away from each other, of the arc blocks correspondingly, L-shaped rods are hinged to the inner walls of the U-shaped blocks, and a long frame is fixed to the top end in the bottom shell, a flange is clamped and positioned through the arc blocks, and therefore the problem that due to the fact that the flange deviates on the frame plate, hole sites in the surface of the flange deviate is solved.

Description

Technical Field

[0001] The invention relates to the technical field of flange drilling, in particular to a drilling machine tool for machining flanges. Background Art

[0002] Flanges are parts that connect pipes to each other. There are holes on the flanges for bolts to connect the two flanges. The main function of the drilling machine for processing flanges is to drill the holes on the flanges and cut the flange surface through the rotating drill bit to make the hole size on the flange uniform, thereby improving the sealing performance and service life of the flange.

[0003] Patent publication number CN220093820U discloses a drilling machine for machining flanges, comprising a base, a fixing plate, a support frame, and a pad. The drilling assembly comprises a rotating shaft, a servo motor, a worm, a worm gear, a disc, a mounting frame, an electric push rod, a drilling motor, a vertical plate, a hydraulic rod, and a clamping block. This utility model belongs to the field of flange machining technology and specifically relates to a drilling machine that can quickly clamp and secure flanges of varying sizes and thicknesses, drill holes in flanges of varying diameters by adjusting the mounting frame to different positions, and precisely rotate the disc to the appropriate angle, improving both the machining effect and efficiency of the flanges.

[0004] However, the drilling machines currently used for processing flanges have the following problems: since the flange position is offset during the drilling process of the flange, it is easy to cause inaccurate hole positions on the flange surface, which in turn leads to the problem of flange surface hole position offset. Therefore, we propose a drilling machine for processing flanges. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a drilling machine for machining flanges in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a drilling machine tool for processing flanges, comprising a bottom shell, the top surface of the bottom shell is fixed with a top shell, the interior of the top shell is provided with a square opening, the bottom end of the interior of the top shell is fixed with a bottom plate, the middle of the top surface of the bottom plate is provided with a square opening, the square opening of the bottom plate is aligned with the square opening of the top shell, the top surface of the bottom plate is fixed with a frame plate, the top surface of the frame plate is provided with two slide grooves, the top surface of the frame plate is provided with four slot holes, the middle of the top surface of the frame plate is provided with a ring hole, the inner wall of the slide groove of the frame plate is slidably mounted with a cross block, the top surface of the cross block is respectively fixed with an arc block, the bottom of the side of the arc block away from each other is respectively fixed with a U-shaped block, the inner wall of the U-shaped block is hinged with an L-shaped rod, the top of the bottom shell The U-shaped block pushes the arc block to move toward the middle, and the arc block drives the cross block to move toward the middle, and the cross block slides toward the middle in the sliding groove of the shelf plate. The arc block clamps both sides of the flange during the movement toward the middle, and the arc block pushes the flange to the middle of the shelf plate.

[0007] According to the above technical solution, the frame plate is provided with four support columns, and the support columns of the frame plate are respectively located on the side where the arc blocks are away from each other. The L-shaped rod is respectively located inside the two sliding grooves of the frame plate, and the L-shaped rod is located on the side where the cross blocks are away from each other.

[0008] According to the above technical solution, the arc blocks are located on the left and right sides of the annular hole, the long block is located below the annular hole, and the electric telescopic rod is located on the left inside the long frame.

[0009] According to the above technical solution, a frame is fixed to the top inner side of the bottom shell, a servo electric cylinder is fixedly installed on the inner wall of the frame, a plate is fixed to the bottom surface of the telescopic end of the servo electric cylinder, four motors are fixed to the bottom surface of the plate, and a drill bit is fixed to the bottom surface of the rotating shaft of each motor. The drill bit is located above the slot hole of the frame plate, and the drill bit is used to drill the flange surface.

[0010] According to the above technical solution, an outer cover is fixed on the edge of the bottom surface of the sheet, and hole blocks are provided in the middle of the left and right sides of the outer cover. Two cylinders are fixed on the top surface of the bottom plate, and the cylinders pass through and are fixed on the bottom surface of the frame plate. The outer wall of the cylinder is slidably connected with the inner wall of the hole block of the outer cover, and the outer cover is used to limit the downward movement of the drill bit.

[0011] According to the above technical solution, a cooling device is provided on the top of the outer wall of the long block, which is used to cool the drill surface. A vibration damping device is provided on the front of the cooling device, which is used to reduce vibration when the long block moves.

[0012] According to the above technical solution, the cooling device includes a U-shaped frame, which is fixed on the top of the outer wall of the long block. A cross nozzle is fixedly installed on the middle of the top surface of the U-shaped frame. A laser sensor is fixedly installed on the top surface of the cross nozzle. A hose is installed on the bottom of the front of the cross nozzle. The cross nozzle is used to spray coolant onto the surface of the drill bit. The cross nozzle drives the laser sensor to move downward. The cross nozzle moves to the top of the annular hole. The laser emitted by the laser sensor senses the drill bit, and the cross nozzle sprays coolant.

[0013] According to the above technical solution, a vertical plate is fixed on the front of the U-shaped frame, and several groups of rubber supports are fixed on the front of the vertical plate. The rubber supports are used to clamp the hose. An L-shaped plate is fixed to the bottom of the back of the vertical plate. The vertical plate drives the rubber support to move downward, and the vertical plate drives the L-shaped plate to move downward. The L-shaped plate holds up the hose, and the rubber support drives the hose to move downward. The rubber support limits the hose. The L-shaped plate is used to limit the hose so that the hose will not be entangled on the surface of the electric telescopic rod.

[0014] According to the above technical solution, the vibration damping device includes an L-shaped slip ring, which is fixed on both sides of the front of the L-shaped plate. Vertical frames are fixed on the left and right sides of the inner wall of the square opening of the bottom plate. Notches are respectively opened on the top surfaces of the vertical frames. A round rod is fixed to the bottom end of the vertical frame. The inner wall of the L-shaped slip ring is slidably connected to the outer wall of the round rod. A spring is arranged between the L-shaped slip ring and the vertical frame. The spring is sleeved on the round rod. The L-shaped slip ring slides downward on the round rod. The L-shaped slip ring drives the spring to move downward. Under the restriction of the vertical frame, the spring begins to contract. The compressed elastic force of the spring is used to reduce the vibration when the long block moves.

[0015] According to the above technical solution, a convex plate is fixed on each side of the L-shaped slip ring away from each other, the outer wall of the convex plate is slidably connected to the inner wall of the recess of the vertical frame, the top surface of the convex plate is fixed with a pad, and the bottom surface of the pad is fixed with an arc-shaped rubber block. The convex plate drives the pad to move downward, and the pad drives the arc-shaped rubber block to move downward. The arc-shaped rubber block contacts the vertical frame during the downward movement, and the arc-shaped rubber block is used to prevent the L-shaped rod from hitting the top surface of the bottom plate.

[0016] The present invention adopts the above technical solution, which can bring the following beneficial effects: (1) The present invention is equipped with an electric telescopic rod through a bottom shell, a top shell, a bottom plate, a frame plate, a ring hole, a cross block, an arc block, a U-shaped block, an L-shaped rod, a long block and a long frame. The long block drives the L-shaped rod to move downward. Under the restriction of the cross block, the L-shaped rod rotates upward in the notch of the long block, and the L-shaped rod rotates downward in the U-shaped block. The U-shaped block pushes the arc block to move toward the middle, and the arc block drives the cross block to move toward the middle. The cross block slides toward the middle in the sliding groove of the frame plate. The arc block clamps both sides of the flange during the movement toward the middle. The arc block pushes the flange to the middle of the frame plate. The arc block clamps the positioning flange to prevent the flange from shifting on the frame plate and causing the hole position of the flange surface to shift.

[0017] (2) The present invention sets a cooling device so that the U-shaped frame, the cross nozzle and the laser sensor cooperate with the hose. The cross nozzle drives the laser sensor to move downward, and the cross nozzle moves to above the ring hole. The laser emitted by the laser sensor senses the drill bit, and the cross nozzle sprays coolant to cool the drill bit, thereby preventing the drill bit from overheating and causing the drill bit of the drilling machine to be easily damaged.

[0018] (3) The present invention sets a cooling device so that the vertical plate and the rubber support cooperate with the L-shaped plate. The vertical plate drives the rubber support to move downward, and the vertical plate drives the L-shaped plate to move downward. The L-shaped plate holds up the hose, and the rubber support drives the hose to move downward. The rubber support limits the hose to prevent the hose from being entangled on the electric telescopic rod and causing the hose to be easily bent and damaged.

[0019] (4) The present invention sets a vibration reduction device so that the L-shaped slip ring, the vertical frame and the round rod cooperate with the spring. The L-shaped slip ring slides downward on the round rod, and the L-shaped slip ring drives the spring to move downward. Under the restriction of the vertical frame, the spring begins to contract. The elastic force of the spring compression reduces the shaking of the long block when it moves downward. The spring limits the downward movement of the long block to prevent the arc block from excessively clamping the flange and causing damage to the flange surface.

[0020] (5) The present invention sets a vibration reduction device so that the convex plate and the pad cooperate with the arc-shaped rubber block. The convex plate drives the pad to move downward, and the pad drives the arc-shaped rubber block to move downward. The arc-shaped rubber block contacts the vertical frame during the downward movement, preventing the L-shaped rod from hitting the bottom plate and causing the L-shaped rod to be easily deformed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 is a schematic diagram of the internal components of the present invention; Figure 3 It is a cross-sectional schematic diagram of the bottom shell of the present invention; Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of point A in the middle; Figure 5 is a schematic diagram of a cooling device of the present invention; Figure 6 is a schematic diagram of the vibration reduction device of the present invention; Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. bottom shell; 2. top shell; 201. frame; 202. servo cylinder; 203. sheet; 204. outer cover; 205. cylinder; 206. motor; 207. drill bit; 3. bottom plate; 4. frame plate; 5. ring hole; 6. cross block; 7. arc block; 8. U-shaped block; 9. L-shaped rod; 10. long block; 11. long frame; 12. electric telescopic rod; 13. cooling device; 131. U-shaped frame; 132. cross nozzle; 133. laser sensor; 134. hose; 135. vertical plate; 136. rubber support; 137. L-shaped plate; 14. vibration damping device; 141. L-shaped slip ring; 142. vertical frame; 143. round rod; 144. spring; 145. convex plate; 146. pad; 147. arc-shaped rubber block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-Figure 7 , one embodiment of the present invention is: a drilling machine tool for processing flanges, including a bottom shell 1, a top shell 2 is fixed on the top surface of the bottom shell 1, a square opening is opened inside the top shell 2, a bottom plate 3 is fixed to the bottom end of the top shell 2, a square opening is opened in the middle of the top surface of the bottom plate 3, the square opening of the bottom plate 3 is aligned with the square opening of the top shell 2, a frame plate 4 is fixed on the top surface of the bottom plate 3, two slide grooves are opened on the top surface of the frame plate 4, four slots are opened on the top surface of the frame plate 4, a ring hole 5 is opened in the middle of the top surface of the frame plate 4, a cross block 6 is slidably installed on the inner wall of the slide groove of the frame plate 4, an arc block 7 is fixed on the top surface of the cross block 6, a U-shaped block 8 is fixed on the bottom of the side away from each other, the inner wall of the U-shaped block 8 is hinged with an L-shaped rod 9, a long Frame 11, the bottom end of the long frame 11 passes through and is fixed with an electric telescopic rod 12, and a long block 10 is fixed to the top surface of the telescopic end of the electric telescopic rod 12. The long block 10 is located inside the square opening of the bottom plate 3, and a notch is provided on the top surface of the long block 10. The inner wall of the notch of the long block 10 and the end of the L-shaped rod 9 away from the U-shaped block 8 are hinged to each other, and the arc block 7 is used to clamp both sides of the flange. The frame plate 4 is provided with four supporting columns, and the supporting columns of the frame plate 4 are respectively located on the side where the arc blocks 7 are away from each other. The L-shaped rods 9 are respectively located in the two slide grooves of the frame plate 4, and the L-shaped rods 9 are located on the side where the cross blocks 6 are away from each other. The arc blocks 7 are located on the left and right sides of the annular hole 5, and the long block 10 is located below the annular hole 5. The electric telescopic rod 12 is located on the left side of the long frame 11; A frame 201 is fixed to the top of the bottom shell 1, and a servo electric cylinder 202 is fixedly installed on the inner wall of the frame 201. A sheet 203 is fixed to the bottom surface of the telescopic end of the servo electric cylinder 202, and four motors 206 are fixed to the bottom surface of the sheet 203. A drill bit 207 is fixed to the bottom surface of the rotating shaft of the motor 206. The drill bit 207 is located above the slot of the frame plate 4. The drill bit 207 is used to drill the flange surface. An outer cover 204 is fixed to the edge of the bottom surface of the sheet 203. A hole block is provided in the middle of the left and right sides of the outer cover 204. Two cylinders 205 are fixed to the top surface of the bottom plate 3. The cylinder 205 passes through and is fixed to the bottom surface of the frame plate 4. The outer wall of the cylinder 205 is slidably connected to the inner wall of the hole block of the outer cover 204. The outer cover 204 is used to limit the downward movement of the drill bit 207; The bottom shell 1 supports the top shell 2, the top shell 2 supports the bottom plate 3, the bottom plate 3 supports the frame plate 4, the operator puts the flange on the ring hole 5, the frame plate 4 supports the flange, the operator starts the electric telescopic rod 12 on the long frame 11, the telescopic end of the electric telescopic rod 12 begins to move downward, the telescopic end of the electric telescopic rod 12 drives the long block 10 to move downward, the long block 10 moves downward in the square opening of the bottom plate 3, the long block 10 drives the L-shaped rod 9 to move downward, under the restriction of the cross block 6, the L-shaped rod 9 rotates upward in the recess of the long block 10, the L-shaped rod 9 rotates downward in the U-shaped block 8, the U-shaped block 8 pushes the arc block 7 to move toward the middle, the arc block 7 drives the cross block 6 to move toward the middle, the cross block 6 slides toward the middle in the slide groove of the frame plate 4, the arc block 7 clamps both sides of the flange in the process of moving toward the middle, and the arc block 7 pushes the flange to the middle of the frame plate 4. The frame 201 is supported, and the operator starts the servo electric cylinder 202 on the frame 201. The telescopic end of the servo electric cylinder 202 begins to move downward, and the telescopic end of the servo electric cylinder 202 drives the plate 203 to move downward, and the plate 203 drives the outer cover 204 to move downward, and the outer cover 204 moves downward on the cylinder 205. At the same time, the plate 203 drives the motor 206 to move downward, and the motor 206 drives the drill bit 207 to move downward. The operator starts the motor 206 on the plate 203, and the rotating shaft of the motor 206 starts to rotate. The rotating shaft of the motor 206 drives the drill bit 207 to rotate, and the drill bit 207 drills the flange surface, so that when the drilling machine tool is processing the flange, the arc block 7 clamps the positioning flange, so that the flange will not shift on the frame plate 4, thereby avoiding the problem of the flange surface hole position shifting due to the flange shifting on the frame plate 4 when the drilling machine tool is processing the flange; A cooling device 13 is provided on the top of the outer wall of the long block 10 for cooling the surface of the drill bit 207 . A vibration damping device 14 is provided on the front of the cooling device 13 for reducing vibration when the long block 10 moves.

[0025] Working principle: Put the flange on the ring hole 5, the frame plate 4 supports the flange, the telescopic end of the electric telescopic rod 12 drives the long block 10 to move downward, the long block 10 moves downward in the square opening of the bottom plate 3, the long block 10 drives the L-shaped rod 9 to move downward, under the restriction of the cross block 6, the L-shaped rod 9 rotates upward in the notch of the long block 10, the L-shaped rod 9 rotates downward in the U-shaped block 8, the U-shaped block 8 pushes the arc block 7 to move toward the middle, the arc block 7 drives the cross block 6 to move toward the middle, the cross block 6 is in the slide groove of the frame plate 4 The arc block 7 slides toward the middle, and the arc block 7 clamps both sides of the flange during the movement toward the middle. The arc block 7 pushes the flange to the middle of the frame plate 4. The telescopic end of the servo electric cylinder 202 drives the plate 203 to move downward, and the plate 203 drives the outer cover 204 to move downward. The outer cover 204 moves downward on the cylinder 205. The plate 203 drives the motor 206 to move downward, and the motor 206 drives the drill bit 207 to move downward. The rotating shaft of the motor 206 drives the drill bit 207 to rotate, and the drill bit 207 drills the flange surface.

[0026] See also Figure 1-Figure 7 In another embodiment of the present invention, based on the above embodiment, the cooling device 13 includes a U-shaped frame 131, which is fixed to the top of the outer wall of the long block 10. A cross nozzle 132 is fixedly installed through the middle of the top surface of the U-shaped frame 131. A laser sensor 133 is fixedly installed on the top surface of the cross nozzle 132. A hose 134 is installed at the bottom of the front of the cross nozzle 132. The cross nozzle 132 is used to spray coolant onto the surface of the drill bit 207. While the long block 10 drives the L-shaped rod 9 to move downward, the long block 10 drives the U-shaped frame 131 to move downward, the U-shaped frame 131 drives the cross nozzle 132 to move downward, the cross nozzle 132 drives the hose 134 to move downward, the hose 134 is connected to the liquid storage tank, the cross nozzle 132 drives the laser sensor 133 to move downward, the cross nozzle 132 moves to above the annular hole 5, when the drill bit 207 rotates and moves downward, the laser emitted by the laser sensor 133 senses the drill bit 207, and the cross nozzle 132 sprays coolant to cool the drill bit 207, thereby avoiding the problem of the drill bit 207 being easily damaged due to overheating of the drilling machine when processing the flange.

[0027] A vertical plate 135 is fixed to the front of the U-shaped frame 131. A plurality of rubber supports 136 are fixed to the front of the vertical plate 135. The rubber supports 136 are used to clamp the hose 134. An L-shaped plate 137 is fixed to the bottom of the back of the vertical plate 135. The L-shaped plate 137 is used to restrict the hose 134 so that the hose 134 will not be entangled with the surface of the electric telescopic rod 12. While the U-shaped frame 131 drives the cross nozzle 132 to move downward, the U-shaped frame 131 drives the vertical plate 135 to move downward, the vertical plate 135 drives the rubber support 136 to move downward, the vertical plate 135 drives the L-shaped plate 137 to move downward, the L-shaped plate 137 holds up the hose 134, and the rubber support 136 drives the hose 134 to move downward. The rubber support 136 limits the hose 134, thereby avoiding the problem of the hose 134 being easily bent and damaged due to being entangled on the electric telescopic rod 12 when the drilling machine tool is processing the flange.

[0028] The vibration reduction device 14 includes an L-shaped slip ring 141, which is fixed to both sides of the front of the L-shaped plate 137. Vertical frames 142 are fixed to the left and right sides of the inner wall of the square opening of the bottom plate 3. The top surfaces of the vertical frames 142 are respectively provided with notches. A round rod 143 is fixed to the bottom end of each vertical frame 142. The inner wall of the L-shaped slip ring 141 is slidably connected to the outer wall of the round rod 143. A spring 144 is provided between the L-shaped slip ring 141 and the vertical frame 142. The spring 144 is sleeved on the round rod 143. The compressed elastic force of the spring 144 is used to reduce the vibration of the long block 10 when it moves. When the vertical plate 135 drives the L-shaped plate 137 to move downward, the L-shaped plate 137 drives the L-shaped slip ring 141 to move downward, the vertical frame 142 supports the round rod 143, and the L-shaped slip ring 141 slides downward on the round rod 143. The L-shaped slip ring 141 drives the spring 144 to move downward. Under the restriction of the vertical frame 142, the spring 144 begins to contract. The elastic force of the compression of the spring 144 reduces the shaking of the long block 10 when it moves downward. At the same time, when the spring 144 is compressed, the spring 144 limits the downward movement of the long block 10, so that the arc block 7 will not excessively clamp the flange, thereby avoiding the problem of excessive clamping of the flange by the drilling machine tool and causing damage to the flange surface.

[0029] A protruding plate 145 is fixed to each side of the L-shaped slip ring 141 away from each other. The outer wall of the protruding plate 145 is slidably connected to the inner wall of the recess of the vertical frame 142. A pad 146 is fixed to the top surface of the protruding plate 145, and an arc-shaped rubber block 147 is fixed to the bottom surface of the pad 146. The arc-shaped rubber block 147 is used to prevent the L-shaped rod 9 from hitting the top surface of the bottom plate 3. When the L-shaped slip ring 141 drives the spring 144 to move downward, the L-shaped slip ring 141 drives the convex plate 145 to move downward, the convex plate 145 drives the pad 146 to move downward, and the pad 146 drives the arc-shaped rubber block 147 to move downward. The arc-shaped rubber block 147 contacts the vertical frame 142 during the downward movement, so that the L-shaped rod 9 will not hit the bottom plate 3, thereby avoiding the problem of the L-shaped rod 9 hitting the bottom plate 3 when the drilling machine tool is processing the flange, causing the L-shaped rod 9 to be easily deformed and damaged.

[0030] Working principle: The long block 10 drives the U-shaped frame 131 to move downward, the U-shaped frame 131 drives the cross nozzle 132 to move downward, the cross nozzle 132 drives the hose 134 to move downward, the hose 134 is connected to the liquid storage tank, the cross nozzle 132 drives the laser sensor 133 to move downward, the cross nozzle 132 moves to the top of the annular hole 5, the laser emitted by the laser sensor 133 senses the drill bit 207, and the cross nozzle 132 sprays coolant onto the surface of the drill bit 207; The U-shaped frame 131 drives the vertical plate 135 to move downward, the vertical plate 135 drives the rubber support 136 to move downward, the vertical plate 135 drives the L-shaped plate 137 to move downward, the L-shaped plate 137 holds up the hose 134, and the rubber support 136 drives the hose 134 to move downward; The L-shaped plate 137 drives the L-shaped slip ring 141 to move downward, and the L-shaped slip ring 141 slides downward on the round rod 143. The L-shaped slip ring 141 drives the spring 144 to move downward. Under the restriction of the vertical frame 142, the spring 144 begins to contract. The L-shaped slip ring 141 drives the protruding plate 145 to move downward, the protruding plate 145 drives the pad 146 to move downward, the pad 146 drives the arc-shaped rubber block 147 to move downward, and the arc-shaped rubber block 147 contacts the vertical frame 142 during the downward movement.

[0031] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A drilling machine for machining flanges, comprising a bottom shell (1), a top shell (2) being fixed to the top surface of the bottom shell (1), characterized in that: A square opening is provided inside the top shell (2), a bottom plate (3) is fixed at the bottom end inside the top shell (2), a square opening is provided in the middle of the top surface of the bottom plate (3), the square opening of the bottom plate (3) is aligned with the square opening of the top shell (2), a frame plate (4) is fixed on the top surface of the bottom plate (3), two slide grooves are provided on the top surface of the frame plate (4), four slots are provided on the top surface of the frame plate (4), a ring hole (5) is provided in the middle of the top surface of the frame plate (4), the inner wall of the slide groove of the frame plate (4) is slidably mounted with a cross block (6), the top surface of the cross block (6) is respectively fixed with an arc block (7), and the arc blocks (7) are away from each other. A U-shaped block (8) is fixed to the bottom of one side, and an L-shaped rod (9) is hinged to the inner wall of the U-shaped block (8). A long frame (11) is fixed to the top of the inner side of the bottom shell (1). An electric telescopic rod (12) is passed through and fixed to the bottom of the inner side of the long frame (11). A long block (10) is fixed to the top surface of the telescopic end of the electric telescopic rod (12). The long block (10) is located inside the square opening of the bottom plate (3). A notch is provided on the top surface of the long block (10). The inner wall of the notch of the long block (10) is hinged to the end of the L-shaped rod (9) away from the U-shaped block (8). The arc block (7) is used to clamp the two sides of the flange.

2. The drilling machine tool for machining flanges according to claim 1, characterized in that: The frame plate (4) is provided with four support columns, the support columns of the frame plate (4) are respectively located on the side of the arc blocks (7) away from each other, the L-shaped rods (9) are respectively located inside the two sliding grooves of the frame plate (4), and the L-shaped rods (9) are located on the side of the cross blocks (6) away from each other.

3. The drilling machine tool for machining flanges according to claim 2, characterized in that: The arc block (7) is located on the left and right sides of the annular hole (5), the long block (10) is located below the annular hole (5), and the electric telescopic rod (12) is located on the left side inside the long frame (11).

4. The drilling machine tool for machining flanges according to claim 3, characterized in that: A frame (201) is fixed to the top of the bottom shell (1), a servo electric cylinder (202) is fixedly mounted on the inner wall of the frame (201), a plate (203) is fixed to the bottom surface of the telescopic end of the servo electric cylinder (202), four motors (206) are fixed to the bottom surface of the plate (203), and a drill bit (207) is fixed to the bottom surface of the rotating shaft of each motor (206), the drill bit (207) is located above the slot hole of the frame plate (4), and the drill bit (207) is used to drill the flange surface.

5. The drilling machine tool for machining flanges according to claim 4, characterized in that: An outer cover (204) is fixed to the bottom edge of the sheet plate (203), and a hole block is provided in the middle of the left and right sides of the outer cover (204). Two cylinders (205) are fixed to the top surface of the bottom plate (3), and the cylinders (205) pass through and are fixed to the bottom surface of the frame plate (4). The outer wall of the cylinder (205) is slidably connected to the inner wall of the hole block of the outer cover (204), and the outer cover (204) is used to limit the downward movement of the drill bit (207).

6. The drilling machine tool for machining flanges according to claim 5, characterized in that: A cooling device (13) is provided on the top of the outer wall of the long block (10), and the cooling device (13) is used to cool the surface of the drill bit (207); A vibration damping device (14) is provided on the front side of the cooling device (13), and the vibration damping device (14) is used to reduce vibration when the long block (10) moves.

7. The drilling machine tool for machining flanges according to claim 6, characterized in that: The cooling device (13) includes a U-shaped frame (131), the U-shaped frame (131) is fixed to the top of the outer wall of the long block (10), a cross nozzle (132) is passed through the middle of the top surface of the U-shaped frame (131) and is fixedly installed, a laser sensor (133) is fixedly installed on the top surface of the cross nozzle (132), and a hose (134) is installed at the bottom of the front of the cross nozzle (132). The cross nozzle (132) is used to spray coolant onto the surface of the drill bit (207).

8. The drilling machine tool for machining flanges according to claim 7, characterized in that: A vertical plate (135) is fixed to the front of the U-shaped frame (131), and a plurality of rubber supports (136) are fixed to the front of the vertical plate (135). The rubber supports (136) are used to clamp the hose (134). An L-shaped plate (137) is fixed to the bottom of the back of the vertical plate (135). The L-shaped plate (137) is used to limit the hose (134) so ​​that the hose (134) does not get entangled with the surface of the electric telescopic rod (12).

9. The drilling machine tool for machining flanges according to claim 8, characterized in that: The vibration reduction device (14) includes an L-shaped slip ring (141), which is fixed on both sides of the front of the L-shaped plate (137). Vertical frames (142) are fixed on the left and right sides of the inner wall of the square opening of the bottom plate (3). The top surfaces of the vertical frames (142) are respectively provided with notches. A round rod (143) is fixed to the bottom end of the vertical frames (142). The inner wall of the L-shaped slip ring (141) is slidably connected to the outer wall of the round rod (143). A spring (144) is provided between the L-shaped slip ring (141) and the vertical frame (142). The spring (144) is sleeved on the round rod (143). The compressed elastic force of the spring (144) is used to reduce the vibration of the long block (10) when it moves.

10. The drilling machine tool for machining flanges according to claim 9, characterized in that: A convex plate (145) is fixed to each side of the L-shaped slip ring (141) that is away from each other. The outer wall of the convex plate (145) is slidably connected to the inner wall of the recess of the vertical frame (142). A pad (146) is fixed to the top surface of the convex plate (145). An arc-shaped rubber block (147) is fixed to the bottom surface of the pad (146). The arc-shaped rubber block (147) is used to prevent the L-shaped rod (9) from hitting the top surface of the bottom plate (3).

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