CN220636370U - Flange face processingequipment - Google Patents

Abstract

The utility model discloses a flange surface machining device, which relates to the technical field of flange machining and comprises a mounting base, a flange fixing unit and an end surface machining unit; the upper end of the mounting base is fixedly connected with an L-shaped mounting frame; the flange fixing unit comprises an electric turntable, a sector pillar, a hoisting top disc, an inner supporting sliding frame and a rubber block, wherein the electric turntable is embedded and installed in the middle of the upper end of the installation base, and three vertical sector pillars are fixedly connected with the upper end circumference array of the electric turntable; the end face processing unit is arranged at the lower side of the horizontal end of the mounting frame. The flange workpiece can be fixed from the inside of the flange hole, so that the flange surface is not affected to be machined, the fixing device can automatically shrink, the workpiece can be conveniently placed at any time, the flange workpiece fixing device also comprises a reliable end surface machining unit, the flat end surface of the flange and the annular surface with the neck can be effectively machined, and the practicability of the flange workpiece fixing device is improved.

Description

Flange face processingequipment

Technical Field

The utility model relates to the technical field of flange machining, in particular to a flange surface machining device.

Background

A flange is a component for mechanical connection, and is one of the indispensable accessories of a fluid delivery system consisting of bearings, pipes, valves and the like. The flange has the advantages of tight connection, convenient disassembly and assembly, strong sealing performance, safety, reliability and the like, and is widely applied in the industrial field; the flatness of the flange is critical to the performance and safety of pipelines and machine equipment, and uneven flange connection is easy to cause leakage, so that the performance and reliability of the equipment are affected, and therefore, the flange surface is required to be milled during production;

the device for processing the flange surface in the prior art is used for clamping and fixing the flange from the outside of the circumference side of the flange, the clamping of the clamp can lead to the fact that the flange surface cannot be effectively and completely polished and processed, even damage can be caused by the collision of a cutter with the clamp, the existing device only conveniently processes one relatively flat end of the flange, and the flange surface processing device is inconvenient to process one side with the neck bulge.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides a flange surface machining device which is provided with a reliable flange fixing unit, can fix a flange workpiece from the inside of a flange hole, so that the flange surface can be machined, can automatically shrink, is convenient for accommodating the workpiece at any time, is also provided with a reliable end surface machining unit, can effectively machine both a flat end surface of the flange and an annular surface with a neck, improves the practicability of the device, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a flange surface machining device comprises a mounting base, a flange fixing unit and an end surface machining unit;

and (2) mounting a base: is fixedly connected with the upper end of an L-shaped mounting frame is arranged;

flange fixing unit: the lifting device comprises an electric turntable, fan-shaped supporting columns, lifting top plates, T-shaped sliding grooves, inner supporting sliding frames and rubber blocks, wherein the electric turntable is embedded in the middle of the upper end of a mounting base, three vertical fan-shaped supporting columns are fixedly connected to the upper end circumference array of the electric turntable, a certain interval exists between every two adjacent fan-shaped supporting columns, the lifting top plates are fixedly connected to the upper ends of the fan-shaped supporting columns, three T-shaped sliding grooves are formed in the lower end circumference array of the lifting top plates, the T-shaped sliding grooves are formed in the outer side of the circle centers of the lifting top plates in a divergent mode, the three lifting top plates respectively correspond to gaps between the fan-shaped supporting columns vertically, the inner supporting sliding frames are arranged in the three gaps, the middle lower sections of the inner supporting sliding frames are of outward L-shaped structures, the rubber blocks are fixedly arranged at the inner corners of the L-shaped structures, the middle upper sections of the inner supporting sliding frames are of inward T-shaped structures, the upper ends of the trapezoid structures are in the T-shaped sliding grooves in a sliding mode, and transmission assemblies are arranged inside the upper ends of the inner supporting sliding frames;

an end face processing unit: is arranged at the lower side of the horizontal end of the mounting frame.

The installation base is used for the installation of each part of flange fixed unit, the mounting bracket is used for the installation of each part of terminal surface processing unit, the fan-shaped pillar is used for the installation and the support of hoist and mount top disc, hoist and mount top disc is installed to interior support balladeur train through three T shape spout of seting up, the T shape structure of interior support balladeur train upper end makes it can with T shape spout sliding connection, thereby make interior support balladeur train can follow the radius of hoist and mount top disc and slide for the route, interior support balladeur train can be outwards pushed out under drive assembly's effect, the rubber piece of turning side can be pushed up on the inner wall of flange hole, and the rubber piece has great frictional force for the metal inner wall of flange hole, thereby can fix the flange work piece of suit in the fan-shaped pillar outside, the outside is carried out the support to the outside horizontal segment of interior support balladeur train lower extreme, electric turntable is used for driving fan-shaped pillar and flange work piece and rotates, thereby can rotate flange face and knife contact, the mill processing to the flange face is realized, the terminal surface processing unit is used for controlling the cutter of different sides and goes up and down, thereby can all carry out effectual processing to the terminal surface of flange.

Further, drive assembly in the flange fixed unit contains telescopic link one, activity kicking block, gangbar and even axle movable sleeve, the centre of a circle position department fixedly connected with vertical telescopic link one of hoist and mount kicking disc lower extreme, the lower extreme fixed connection of telescopic link one is in the upside middle part of activity kicking block, at the middle part of three limit of activity kicking block to and the square mounting groove has all been seted up to the side inwards of interior bracing balladeur train upside horizontal end, and a even axle movable sleeve is all installed through a connecting axle to the inside of every side mounting groove, and a gangbar is fixedly connected with between two adjacent even axle movable sleeves. The telescopic rod is used for installing the movable jacking block, the movable jacking block can push or pull the inner supporting sliding frame through the linkage rod in the up-and-down moving process, and the connecting shaft movable sleeve is used for keeping the movable connection of the linkage rod, the inner supporting sliding frame and the movable jacking block, so that the inner supporting sliding frame can effectively slide in and slide out.

Further, the flange fixing unit further comprises a spring and a first hydraulic cylinder, the spring is sleeved outside the first telescopic rod, the first hydraulic cylinder is installed at the upper end of the electric turntable in the central area of the clamping of the three fan-shaped supporting columns, and the telescopic end of the first hydraulic cylinder faces upwards. The spring can produce a decurrent elasticity to the movable kicking block to can be after the flexible end of pneumatic cylinder one is received, the movable kicking block can be under the effect of spring decurrent removal, thereby guarantee that three internal stay balladeur train keeps in the state of drawing in, make things convenient for the dress of flange work piece to put.

Further, the terminal surface processing unit contains pneumatic cylinder two, telescopic link two, main cutter handle and fixing bolt, pneumatic cylinder two is installed to the upside of mounting bracket horizontal end, pneumatic cylinder two is vertical corresponding with the centre of a circle of hoist and mount top disc, the telescopic link of pneumatic cylinder two just with the upper end middle part fixed connection of main cutter handle down, the upper end of main cutter handle just uses pneumatic cylinder two telescopic link to be provided with two telescopic links two as central symmetry, the upper and lower both ends of telescopic link two respectively with the downside of mounting bracket and the upside fixed connection of main cutter handle, the mid-mounting of main cutter handle has the milling blade, and the milling blade is fixed mutually with main cutter handle through a row of fixing bolt of side. The second hydraulic cylinder is used for controlling the main cutter handle and the cutter to be close to the flange face, the main cutter handle is used for installing the cutter with larger size to carry out milling processing to the smooth end face of flange, fixing bolts are used for fixing the cutter, and the second telescopic rod is used for bearing the force received when the cutter contacts with the rotating flange face, so that the telescopic rod of the hydraulic cylinder is protected.

Further, the end face machining unit further comprises a third hydraulic cylinder and an auxiliary cutter handle, the third hydraulic cylinder is installed at the right position of the horizontal end of the mounting frame, the telescopic end of the third hydraulic cylinder is downward and fixedly connected to the middle of the upper end of the auxiliary cutter handle, and the auxiliary cutter handle is transversely arranged and is vertical to the left main cutter handle in space. The hydraulic cylinder is used for controlling the auxiliary cutter handle and the cutter to process the annular surface around the neck of the flange, so that the annular end surface of one side of the neck of the flange can be processed.

Further, the chip removing machine comprises a chip removing machine and a bolt mounting groove, wherein the chip removing machine is mounted in the middle of the vertical section of the mounting frame, the suction port of the chip removing machine faces to the lifting top disc, and the bolt mounting groove is formed in each of four corners of the upper end of the mounting base. The chip suction machine is used for sucking milling chips on the flange surface, and the bolt mounting groove is used for mounting a bolt fastener so as to fix the whole device.

Compared with the prior art, the utility model has the beneficial effects that: the flange surface processing device has the following advantages:

1. the flange fixing device has the advantages that the flange fixing device is reliable, flange workpieces can be fixed from the inside of the flange hole, the flange faces are not affected, the fixing device can automatically shrink, and the workpieces can be conveniently contained at any time: the T-shaped structure enables the inner support sliding frame to slide along the radius of the lifting top disc as a path, the inner support sliding frame can be pushed outwards under the action of the transmission assembly, the rubber blocks at the corner sides can be propped against the inner wall of the flange hole, and the rubber blocks have larger friction force relative to the metal inner wall of the flange hole, so that a flange workpiece sleeved on the outer side of the fan-shaped support column can be fixed, the lower end of the inner support sliding frame extends outwards to support the flange, the electric turntable is used for driving the fan-shaped support column and the flange workpiece to rotate, so that the flange surface can be rotated to be contacted with a knife grinder, and the grinding and milling processing of the flange surface can be realized; the spring can generate downward elasticity to the movable jacking block, so that the movable jacking block can move downward under the action of the spring after the telescopic end of the first hydraulic cylinder is retracted, and therefore the three inner supporting sliding frames are kept in a furled state, and the flange workpiece is conveniently contained;

2. the flange end face machining device has the advantages that the flange end face machining device is reliable, the flat end face of the flange and the annular face with the neck can be effectively machined, and the practicability of the flange end face machining device is improved: the second hydraulic cylinder is used for controlling the main cutter handle and the cutters to be close to the flange surface, the main cutter handle is used for installing the cutters with larger sizes so as to mill the flat end surface of the flange, and the third hydraulic cylinder is used for controlling the auxiliary cutter handle and the cutters to be close to the annular surface around the neck of the flange so as to process the annular end surface on one side of the neck of the flange; the fixing bolt is used for fixing the cutter, and the telescopic rod II is used for bearing the force received when the cutter contacts the rotating flange surface, so that the telescopic rod of the hydraulic cylinder is protected;

3. the flange fixing device has the advantages that the flange fixing unit is reliable, a flange workpiece can be fixed from the inside of a flange hole, the flange surface is not affected, the fixing device can automatically shrink, the workpiece can be conveniently contained at any time, the flange fixing device is also provided with the reliable end surface machining unit, the flat end surface of the flange and the annular surface with the neck can be effectively machined, and the practicability of the flange fixing device is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the inclined underside of the present utility model;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic view of a portion of the present utility model;

FIG. 5 is a schematic view of a partial two-structure of the present utility model.

In the figure: 1 mounting base, 2 mounting frame, 3 flange fixing unit, 31 electric turntable, 32 fan-shaped pillar, 33 lifting top disk, 34T shaped chute, 35 inner supporting carriage, 36 rubber block, 37 telescopic link I, 38 movable top block, 39 linkage rod, 310 connecting shaft movable sleeve, 311 spring, 312 hydraulic cylinder I, 4 end face processing unit, 41 hydraulic cylinder II, 42 telescopic link II, 43 main cutter handle, 44 fixing bolt, 45 hydraulic cylinder III, 46 auxiliary cutter handle, 5 chip sucking machine, 6 bolt mounting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present embodiment provides a technical solution: a flange surface machining device comprises a mounting base 1, a flange fixing unit 3 and an end surface machining unit 4;

mounting base 1: an L-shaped mounting frame 2 is fixedly connected to the upper end of the lower part;

flange fixing unit 3: the electric turntable 31 is embedded and installed in the middle of the upper end of the installation base 1, the three vertical fan-shaped support columns 32 are fixedly connected to the upper end circumferential array of the electric turntable 31, a certain interval exists between every two adjacent fan-shaped support columns 32, the upper ends of the fan-shaped support columns 32 are fixedly connected with the lifting top plate 33, three T-shaped sliding grooves 34 are formed in the lower end circumferential array of the lifting top plate 33, the T-shaped sliding grooves 34 are formed in a divergent mode from the center of the lifting top plate 33 to the outside, the three lifting top plates 33 respectively correspond to gaps among the fan-shaped support columns 32 vertically, one inner supporting sliding frame 35 is arranged in each of the three gaps, the middle and lower sections of the inner supporting sliding frame 35 are of an outward L-shaped structure, the rubber block 36 is installed and fixed at the inner corner of the L-shaped structure, the middle and upper sections of the inner supporting sliding frame 35 are of an inward T-shaped structure, the upper ends of the trapezoid structures are in the T-shaped sliding grooves 34, and a transmission assembly is installed inside the upper ends of the inner supporting sliding frame 35;

end face processing unit 4: is arranged at the lower side of the horizontal end of the mounting frame 2.

The installation base 1 is used for installing each part of the flange fixing unit 3, the installation frame 2 is used for installing each part of the end face machining unit 4, the fan-shaped supporting columns 32 are used for installing and supporting the lifting top plate 33, the lifting top plate 33 is used for installing the inner supporting sliding frame 35 through the three T-shaped sliding grooves 34, the T-shaped structure at the upper end of the inner supporting sliding frame 35 enables the inner supporting sliding frame 35 to be in sliding connection with the T-shaped sliding grooves 34, the inner supporting sliding frame 35 can slide along the radius of the lifting top plate 33, the inner supporting sliding frame 35 can be pushed out outwards under the action of a transmission component, rubber blocks 36 at the corner sides can be propped against the inner wall of a flange hole, the rubber blocks 36 have larger friction force relative to the metal inner wall of the flange hole, so that flange workpieces sleeved on the outer side of the fan-shaped supporting columns 32 can be fixed, the lower end of the inner supporting sliding frame 35 outwards extends to support the flange, the electric rotating disc 31 is used for driving the fan-shaped supporting columns 32 and the flange workpieces to rotate, the flange faces can rotate to be in contact with the cutter blades, the cutter blades can be milled on the flange faces, and the end faces can be machined effectively.

The transmission component in the flange fixing unit 3 comprises a telescopic rod I37, a movable top block 38, a linkage rod 39 and a connecting shaft movable sleeve 310, wherein a vertical telescopic rod I37 is fixedly connected to the circle center position of the lower end of the lifting top disc 33, the lower end of the telescopic rod I37 is fixedly connected to the middle part of the upper side of the movable top block 38, square mounting grooves are formed in the middle parts of three sides of the movable top block 38 and inwards facing sides of the upper horizontal end of the inner supporting sliding frame 35, one connecting shaft movable sleeve 310 is mounted in the inner part of each side mounting groove through a connecting shaft, and one linkage rod 39 is fixedly connected between two adjacent connecting shaft movable sleeves 310. The first telescopic rod 37 is used for installing the movable top block 38, the movable top block 38 can push or pull the inner support sliding frame 35 through the linkage rod 39 in the up-and-down moving process, and the connecting shaft movable sleeve 310 is used for keeping the movable connection between the linkage rod 39 and the inner support sliding frame 35 as well as between the linkage rod 39 and the movable top block 38, so that the inner support sliding frame 35 can slide in and slide out effectively.

The flange fixing unit 3 further comprises a spring 311 and a first hydraulic cylinder 312, the spring 311 is sleeved outside the first telescopic rod 37, the first hydraulic cylinder 312 is installed at the upper end of the electric turntable 31 in the central area clamped by the three fan-shaped struts 32, and the telescopic end of the first hydraulic cylinder 312 faces upwards. The spring 311 can generate a downward elastic force to the movable top block 38, so that after the telescopic end of the first hydraulic cylinder 312 is retracted, the movable top block 38 can move downward under the action of the spring, thereby ensuring that the three internal support sliding frames 35 are kept in a furled state, and facilitating the loading and unloading of flange workpieces.

The end face machining unit 4 comprises a second hydraulic cylinder 41, a second telescopic rod 42, a main cutter handle 43 and a fixing bolt 44, the second hydraulic cylinder 41 is installed on the upper side of the horizontal end of the mounting frame 2, the second hydraulic cylinder 41 vertically corresponds to the center of the lifting top disc 33, the telescopic end of the second hydraulic cylinder 41 faces downwards and is fixedly connected with the middle of the upper end of the main cutter handle 43, two telescopic rods 42 are symmetrically arranged at the upper end of the main cutter handle 43 by taking the telescopic rod of the second hydraulic cylinder 41 as a center, the upper end and the lower end of the telescopic rod 42 are fixedly connected with the lower side of the mounting frame 2 and the upper side of the main cutter handle 43 respectively, a milling blade is installed in the middle of the main cutter handle 43, and the milling blade is fixed with the main cutter handle 43 through a row of fixing bolts 44 on the side face. The second hydraulic cylinder 41 is used for controlling the main cutter handle 43 and the cutter to be close to the flange surface, the main cutter handle 43 is used for installing the cutter with larger size so as to mill the flat end surface of the flange, the fixing bolt 44 is used for fixing the cutter, and the second telescopic rod 42 is used for bearing the force received when the cutter contacts the rotating flange surface, so that the telescopic rod of the second hydraulic cylinder 41 is protected.

The end face machining unit 4 further comprises a third hydraulic cylinder 45 and a secondary cutter handle 46, the third hydraulic cylinder 45 is installed at the right position of the horizontal end of the mounting frame 2, the telescopic end of the third hydraulic cylinder 45 faces downwards and is fixedly connected to the middle of the upper end of the secondary cutter handle 46, and the secondary cutter handle 46 is transversely arranged and is vertical to the left primary cutter handle 43 in space. The third hydraulic cylinder 45 is used for controlling the auxiliary cutter handle 46 and the annular surface of the cutter, which is close to the periphery of the neck of the flange, to process the annular end surface of the side, provided with the neck, of the flange.

Still include and inhale bits machine 5 and bolt mounting groove 6, the mid-mounting of the vertical section of mounting bracket 2 has and inhale bits machine 5, and the suction inlet of inhaling bits machine 5 is towards hoist and mount footwall 33 department, and bolt mounting groove 6 has all been seted up in the four corners position department of installation base 1 upper end. The chip sucking machine 5 is used for sucking milling chips on the flange surface, and the bolt mounting groove 6 is used for mounting bolt fasteners so as to fix the whole device.

The working principle of the flange surface machining device provided by the utility model is as follows: by using the device, the hand-held flange is sleeved on the outer side of the fan-shaped strut 32, then the first hydraulic cylinder 312 is electrified to work, the telescopic end of the first hydraulic cylinder 312 extends upwards and upwards moves against the movable jacking block 38, the movable jacking block 38 pushes the inner supporting sliding frame 35 outwards through the linkage rod 39, the rubber block 36 at the corner side can be propped against the inner wall of the flange hole, and the rubber block 36 has larger friction force relative to the metal inner wall of the flange hole, so that a flange workpiece sleeved on the outer side of the fan-shaped strut 32 can be fixed, and the lower end of the inner supporting sliding frame 35 outwards extends to support the flange; fix flange work piece from the inside in flange hole to do not influence and process the flange face, and fixing device can shrink voluntarily, be convenient for hold the work piece at any time: the spring 311 can generate a downward elastic force to the movable top block 38, so that after the telescopic end of the first hydraulic cylinder 312 is retracted, the movable top block 38 can move downward under the action of the spring, thereby ensuring that the three internal support sliding frames 35 are kept in a furled state, and facilitating the loading and unloading of flange workpieces. The device is convenient for effectively processing the flat end face of the flange and the annular face with the neck, and improves the practicability of the device: the main cutter handle 43 is used for installing a cutter with larger size so as to mill the flat end surface of the flange, and the auxiliary cutter handle 46 is transversely arranged and is vertical to the main cutter handle 43 of the left main cutter handle 43 in space; after the processing of the flat surface of the flange is completed, the upward surface of the flange is exchanged, and the third hydraulic cylinder 45 is used for controlling the auxiliary cutter handle 46 and the cutter to process the annular surface of the flange, which is close to the periphery of the neck of the flange, so that the annular end surface of the side of the flange, which is provided with the neck, can be processed. In addition, the chip suction machine 5 is used for sucking milling chips on the flange surface, and the bolt mounting groove 6 is used for mounting a bolt fastener, so that the whole device is fixed.

It should be noted that the input ends of the electric rotary table 31, the first hydraulic cylinder 312, the second hydraulic cylinder 41, the third hydraulic cylinder 45 and the chip sucking machine 5 disclosed in the above embodiment are all electrically connected with the output end of the external power supply through an external control switch set, and the control switch set controls the electric rotary table 31, the first hydraulic cylinder 312, the second hydraulic cylinder 41, the third hydraulic cylinder 45 and the chip sucking machine 5 to work by a method commonly used in the prior art.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The utility model provides a flange face processingequipment which characterized in that: comprises a mounting base (1), a flange fixing unit (3) and an end face processing unit (4);

mounting base (1): the upper end of the upper part is fixedly connected with an L-shaped mounting frame (2);

flange fixing unit (3): the electric turntable comprises an electric turntable (31), fan-shaped supporting columns (32), lifting top plates (33), T-shaped sliding grooves (34), inner supporting sliding racks (35) and rubber blocks (36), wherein the electric turntable (31) is embedded and installed in the middle of the upper end of a mounting base (1), three vertical fan-shaped supporting columns (32) are fixedly connected to the upper end circumference array of the electric turntable (31), a certain interval exists between every two adjacent fan-shaped supporting columns (32), the upper ends of the fan-shaped supporting columns (32) are fixedly connected with the lifting top plates (33), three T-shaped sliding grooves (34) are formed in the circumferential array of the lower ends of the lifting top plates (33), the T-shaped sliding grooves (34) are formed by the circle centers of the lifting top plates (33) in an outward-dispersing mode, the three lifting top plates (33) respectively correspond to gaps between the fan-shaped supporting columns (32) vertically, the inner supporting sliding racks (35) are arranged in the three gaps, the inner supporting sliding racks (35) are installed and the inner supporting racks (36) are fixedly connected to the inner corners of the L-shaped structures, the inner supporting racks (35) are connected to the inner supporting racks (35), and the inner supporting racks are connected to the inner supporting racks (35) respectively;

end face processing unit (4): is arranged at the lower side of the horizontal end of the mounting frame (2).

2. A flange face processing apparatus according to claim 1, wherein: the transmission assembly in the flange fixing unit (3) comprises a telescopic rod I (37), a movable top block (38), a linkage rod (39) and a connecting shaft movable sleeve (310), a vertical telescopic rod I (37) is fixedly connected to the circle center position of the lower end of the lifting top disc (33), the lower end of the telescopic rod I (37) is fixedly connected to the middle part of the upper side of the movable top block (38), square mounting grooves are formed in the middle parts of three sides of the movable top block (38) and inwards facing sides of the upper side horizontal end of the inner supporting sliding frame (35), a connecting shaft movable sleeve (310) is mounted in the inner part of each side mounting groove through a connecting shaft, and one linkage rod (39) is fixedly connected between two adjacent connecting shaft movable sleeves (310).

3. A flange face processing apparatus according to claim 2, wherein: the flange fixing unit (3) further comprises a spring (311) and a first hydraulic cylinder (312), the spring (311) is sleeved outside the first telescopic rod (37), the first hydraulic cylinder (312) is installed at the upper end of the electric turntable (31) and in the central area clamped by the three fan-shaped supporting columns (32), and the telescopic end of the first hydraulic cylinder (312) faces upwards.

4. A flange face processing apparatus according to claim 1, wherein: the end face machining unit (4) comprises a hydraulic cylinder II (41), a telescopic rod II (42), a main cutter handle (43) and a fixing bolt (44), wherein the hydraulic cylinder II (41) is installed on the upper side of the horizontal end of the installation frame (2), the hydraulic cylinder II (41) vertically corresponds to the center of a lifting top disc (33), the telescopic end of the hydraulic cylinder II (41) is downwards fixedly connected with the middle part of the upper end of the main cutter handle (43), two telescopic rods II (42) are symmetrically arranged at the upper end of the main cutter handle (43) by taking the telescopic rod II (41) of the hydraulic cylinder as the center, the upper end and the lower end of the telescopic rod II (42) are fixedly connected with the lower side of the installation frame (2) and the upper side of the main cutter handle (43) respectively, the middle part of the main cutter handle (43) is provided with a milling cutter blade, and the milling blade is fixed with the main cutter handle (43) through a row of fixing bolts (44) on the side face.

5. The flange face machining apparatus according to claim 4, wherein: the end face machining unit (4) further comprises a hydraulic cylinder III (45) and an auxiliary cutter handle (46), the hydraulic cylinder III (45) is installed at the right position of the horizontal end of the mounting frame (2), the telescopic end of the hydraulic cylinder III (45) is downward and fixedly connected to the middle of the upper end of the auxiliary cutter handle (46), and the auxiliary cutter handle (46) is transversely arranged and is vertical to the left main cutter handle (43) in space.

6. A flange face processing apparatus according to claim 1, wherein: still including inhaling bits machine (5) and bolt mounting groove (6), the mid-mounting of the vertical section of mounting bracket (2) has inhales bits machine (5), inhale the suction inlet of bits machine (5) towards hoist and mount top disc (33) department, bolt mounting groove (6) have all been seted up in four corners position department of installation base (1) upper end.