A tube sheet tube end machining device and machining method

Abstract

The application discloses a tube panel tube end processing device, which comprises a fixed frame, the upper side of the fixed frame is provided with a longitudinal displacement platform, the upper side of the longitudinal displacement platform is provided with a transverse displacement platform, the upper side of the transverse displacement platform is provided with a height adjusting mechanism, the height adjusting mechanism is connected with an adaptive device, the adaptive device is connected with a tube end processing device, and the tube end processing device is spaced apart from the transverse displacement platform; the adaptive device comprises four suspension mechanisms, the four suspension mechanisms are symmetrically arranged on opposite sides of the tube end processing device, the lower end of each suspension mechanism is rotationally connected with the height adjusting mechanism through a lower ball seat, and the upper end of each suspension mechanism is rotationally connected with a side support of the tube end processing device through an upper ball seat; the adaptive device is arranged, so that the tube end processing device can adapt to the tube panel tube end upwarp structure, and the back-and-forth repeated movement of the transverse displacement platform is avoided, thereby saving the processing time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water wall panel processing, in particular to a tube panel end processing device and a processing method. BACKGROUND

[0002] The water wall is the main heating part of the boiler, which is composed of several rows of steel pipes and distributed around the boiler furnace. Its interior is flowing water or steam, and the outside accepts the heat of the boiler furnace flame. It mainly absorbs the radiant heat of high-temperature combustion products in the furnace, and the working medium rises in it and is heated and evaporated.

[0003] The water wall tube end automatic processing production line is used for excess cutting, beveling (chamfering, internal boring) and header drilling of flat tube panels and header pipe joints. The mechanical beveling method is used to complete the excess cutting, beveling (chamfering, internal boring) and header drilling of flat tube panels and header pipe joints made of heat-resistant steel, carbon steel, stainless steel and alloy steel.

[0004] The flat tube panel generally includes a row of parallel and uniformly arranged water cooling pipes, and the two water cooling pipes are connected by a connecting wall. Some tube ends also have a certain angle of warping. The prior art, such as the utility model patent with the publication number CN213259108U, discloses a mechanical processing clamp that can self-adaptively adjust the pressure, which is published on May 25, 2021. In the utility model, the first clamping plate, the second clamping plate and the workbench clamp the pipe material. When the pipe material is not clamped correctly, the first pressure sensor and the second pressure sensor detect different pressures, and the controller changes the pressure of the first clamping plate and the second clamping plate on the pipe material to correct the pipe material and ensure the quality of pipe cutting. The device is suitable for correcting and clamping a single pipe, but it is difficult to adapt to the structural characteristics of the tube panel tube row, so a high-efficiency beveling device that can adapt to the specific structure of the tube panel tube row is needed. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art, and to provide a tube panel end processing device. By setting an adaptive device, the tube end processing device can adapt to the warping structure of the tube panel end, and at the same time, the back and forth movement of the horizontal displacement platform is avoided, and the processing time is saved.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0007] The utility model provides a tube panel tube end processing device, including fixed frame, the upper side of fixed frame is equipped with longitudinal displacement platform, the upper side of longitudinal displacement platform is equipped with transverse displacement platform, the upper side of transverse displacement platform is equipped with height adjusting mechanism, height adjusting mechanism connects adaptive device, adaptive device is connected with tube end processing device, and there is space interval between tube end processing device and transverse displacement platform;Tube end processing device includes installation casing and be connected with the tube end clamping mechanism and beveling device of installation casing;Adaptive device includes four suspension mechanisms, four suspension mechanisms are symmetrically arranged on the opposite sides of installation casing, the lower end of suspension mechanism is rotatably connected with height adjusting mechanism through lower ball seat, and the upper end of suspension mechanism is rotatably connected with the side support of installation casing through upper ball seat.Cutting process is specifically, and the tube end of the processing is inserted to the tube end clamping mechanism certain depth, and beveling device is automatically extended by program setting and is cut off the excess of tube end and is automatically retreated, and this beveling process is similar to the machining process of numerical control machine tool, and it is prior art.

[0008] The improvement and advantages of the above scheme are:

[0009] First, adaptive device connects tube end processing device, and there is space interval between tube end processing device and transverse displacement platform, so that tube end processing device can move within a certain range, when the tube end clamping mechanism clamps the tube end of single tube, tube end processing device can be inclined along the tube end lifting direction of tube panel, so that beveling device can be more accurately and flexibly aligned to tube end processing;

[0010] Second, when beveling processing is completed, the tube end clamping mechanism releases the single tube of tube panel, and the longitudinal displacement platform drives tube end processing device to continue walking along the radial direction of single tube, the fixed clamping block of tube end clamping mechanism is attached to the lower surface of tube panel, and tube end processing device automatically walks along the radial direction of the fluctuation of tube panel contour, which avoids the repeated motion of transverse displacement platform and saves processing time;

[0011] Third, adaptive device includes four suspension mechanisms, four suspension mechanisms are symmetrically arranged on the opposite sides of installation casing, the lower end of suspension mechanism is rotatably connected with height adjusting mechanism through lower ball seat, and the upper end of suspension mechanism is rotatably connected with the side support of installation casing through upper ball seat, so that tube end processing device can float at any angle up and down and left and right, which is widely applicable and stable.

[0012] In one embodiment, the suspension mechanism includes a sleeve, a spring, and a telescopic rod. The sleeve is sleeved with the telescopic rod, and the spring is arranged inside the sleeve. This structure allows one to be damaged without affecting the use of others, facilitating replacement and maintenance.

[0013] In one embodiment, the height adjustment mechanism includes an adjustment drive device, a quadrilateral linkage mechanism, a longitudinal guide rail, and two sliding support plates. The longitudinal guide rail is fixedly connected to the transverse displacement platform and connects to two guide sliders. The two sliding support plates are laterally slidably connected to the transverse displacement platform. The two guide sliders are respectively connected to two opposite corners of the quadrilateral linkage mechanism, and the two sliding support plates are respectively connected to the other two opposite corners of the quadrilateral linkage mechanism. Each sliding support plate connects to two suspension mechanisms. The adjustment drive device can be a hydraulic cylinder. When the hydraulic cylinder extends, it deforms the quadrilateral linkage mechanism, causing the quadrilateral linkage mechanism to increase the longitudinal distance between the two guide sliders, causing the two sliding support plates to move towards each other, increasing the angle of the four suspension mechanisms, making them closer to vertical, thereby increasing the height of the pipe end processing device. The above solution has an ingenious structure, using only one adjustment drive device to drive the synchronous movement of the four suspension mechanisms, thus completing the height adjustment. The adjustment is convenient and the support is stable.

[0014] The pipe end clamping mechanism 5 includes a fixed clamping block, a movable clamping block, and a clamping drive cylinder. The telescopic rod of the clamping drive cylinder is rotatably connected to one end of a guide rod, and the other end of the guide rod is rotatably connected to the movable clamping block. The fixed clamping block is fixedly connected to the mounting housing, and the movable clamping block is movably connected to the mounting housing. After the clamping drive cylinder extends, it causes the movable clamping block to move downward through the guide rod, and the movable clamping block and the fixed clamping block cooperate to clamp the pipe end of the screen. The fixed clamping block has guide inclined walls on both sides. The fixed clamping block has a mounting through hole, and a trigger device is connected through the mounting through hole. The beveling device includes a beveling cutter and a beveling drive device. The beveling cutter is installed between the movable clamping block and the fixed clamping block, and the beveling drive device is installed in the mounting housing and connected to the beveling cutter.

[0015] In the above scheme, the guide rod converts the horizontal reciprocating motion of the clamping drive cylinder into the vertical displacement of the movable clamping block. The movable clamping block and the fixed clamping block cooperate vertically to clamp or release the single pipe. The fixed clamping block is provided with guide inclined walls on both sides, which makes it easier for the fixed clamping block to adhere to the lower surface of the pipe screen, so that the pipe end processing device can automatically move radially along the undulating shape of the pipe screen. After the pipe end is clamped, the beveling tool rotates and feeds laterally to remove the excess material at the pipe end. The triggering device is selected as a stroke position switch.

[0016] The longitudinal displacement platform includes a stepper motor, which is connected to a longitudinally arranged ball screw, which is connected to a screw nut, which is connected to a longitudinal displacement plate. The longitudinal displacement plate is slidably connected to the fixed frame via a longitudinally arranged first slide rail. The transverse displacement platform includes a stepper motor, which is connected to a transversely arranged ball screw, which is connected to a screw nut, which is connected to a transverse displacement plate. The transverse displacement plate is supported and connected to the longitudinal displacement plate via a transversely arranged second slide rail.

[0017] The application provides a processing method of a tube panel tube end processing device, which comprises the following steps:

[0018] S1, the transverse displacement platform drives the tube end processing device to move along the axial direction of the tube end until the tube panel extends to the pre-clamping distance position of the tube end clamping mechanism, then the longitudinal displacement platform drives the tube end processing device to move along the radial direction of the single tube tube end until the lower bus of the single tube tube end touches the trigger device of the tube end clamping mechanism, the trigger device sends a signal, and the longitudinal displacement platform stops moving;

[0019] S2, the tube end clamping mechanism clamps the single tube tube end, and the beveling device performs beveling processing on the tube end of the single tube;

[0020] S3, after the beveling processing is completed, the tube end clamping mechanism releases the single tube of the tube panel, the longitudinal displacement platform drives the tube end processing device to continue moving along the radial direction of the single tube, the fixed clamping block of the tube end clamping mechanism closely abuts against the lower surface of the tube panel, and the tube end processing device automatically moves along the radial direction of the fluctuation of the tube panel contour until the bus of the next single tube touches the trigger device.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] 1. The self-adaptive device is connected to the tube end processing device, and there is a space interval between the tube end processing device and the transverse displacement platform, so that the tube end processing device can move within a certain range, and when the tube end clamping mechanism clamps the single tube tube end, the tube end processing device can be inclined along the tube panel tube end lifting direction, so that the beveling device can be more accurately and flexibly aligned with the tube end processing;

[0023] 2. After the beveling processing is completed, the tube end clamping mechanism releases the single tube of the tube panel, the longitudinal displacement platform drives the tube end processing device to continue moving along the radial direction of the single tube, the fixed clamping block of the tube end clamping mechanism closely abuts against the lower surface of the tube panel, and the tube end processing device automatically moves along the radial direction of the fluctuation of the tube panel contour, thereby avoiding repeated back and forth movement of the transverse displacement platform and saving processing time;

[0024] 3. The self-adaptive device comprises four suspension mechanisms, which are symmetrically arranged on opposite sides of the mounting shell, the lower end of the suspension mechanism is rotationally connected with the height adjusting mechanism through a lower ball seat, and the upper end of the suspension mechanism is rotationally connected with the side support of the mounting shell through an upper ball seat, so that the tube end processing device can float at any angle up and down and left and right, has wide applicability and is stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front view of an embodiment of the tube panel tube end processing device of the application;

[0026] Figure 2 It is a left view of an embodiment of the tube panel tube end processing device of the application;

[0027] Figure 3 Figure is a top view of a tube panel end processing device embodiment of the present application;

[0028] Figure 4 Figure is a partial top view of a tube panel end processing device embodiment of the present application;

[0029] Figure: 1, fixed frame; 2, longitudinal displacement platform; 3, transverse displacement platform; 4, height adjustment mechanism; 5, tube end clamping mechanism; 6, beveling device; 7, suspension mechanism; 8, lower ball seat; 9, upper ball seat; 10, adjustment driving device; 11, quadrilateral linkage mechanism; 12, longitudinal guide rail; 13, sliding support plate; 14, guide slider; 15, fixed clamping block; 16, movable clamping block; 17, clamping drive cylinder; 18, trigger device; 19, stepper motor one; 20, ball screw one; 21, screw nut one; 22, longitudinal displacement plate; 23, first slide rail; 24, stepper motor two; 25, ball screw two; 26, screw nut two; 27, transverse displacement plate; 28, second slide rail. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "horizontal", "vertical" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In the field of boiler water wall production and processing, the excess of the tube end of the flat tube panel of the water wall needs to be cut or beveled, and the flat tube panel generally includes a row of parallel and uniformly arranged water cooling tubes, two water cooling tubes are connected by a connecting wall, and some tube ends also have a certain angle of warping, so a high-efficiency beveling device that can adapt to the specific structure of the tube panel is needed.

[0033] The application provides a tube panel tube end processing device, which comprises a fixed frame 1, the upper side of the fixed frame 1 is provided with a longitudinal displacement platform 2, the upper side of the longitudinal displacement platform 2 is provided with a transverse displacement platform 3, the upper side of the transverse displacement platform 3 is provided with a height adjusting mechanism 4, the height adjusting mechanism 4 is connected with an adaptive device, the adaptive device is connected with a tube end processing device, and the tube end processing device is spaced apart from the transverse displacement platform; the tube end processing device comprises a mounting shell and a tube end clamping mechanism 5 and a beveling device 6 connected with the mounting shell; the adaptive device comprises four suspension mechanisms 7, the four suspension mechanisms 7 are symmetrically arranged on opposite sides of the mounting shell, the lower end of the suspension mechanism 7 is rotationally connected with the height adjusting mechanism 4 through a lower ball seat 8, and the upper end of the suspension mechanism 7 is rotationally connected with the side support of the mounting shell through an upper ball seat 9. The chip removal process is specifically as follows: the tube end to be processed is inserted into the tube end clamping mechanism 5 to a certain depth, the beveling device 6 is automatically extended and the tool is inserted according to the program, and the excess of the tube end is removed and then the beveling device 6 is automatically retracted. The beveling process is similar to the machining process of a numerical control machine tool, and is a prior art.

[0034] The improvement point and the advantage of the above scheme are that:

[0035] First, the adaptive device is connected with the tube end processing device, and the tube end processing device is spaced apart from the transverse displacement platform 3, so that the tube end processing device can move within a certain range, and when the tube end clamping mechanism 5 clamps the tube end of a single tube, the tube end processing device can be inclined along the direction in which the tube panel tube end is raised, so that the beveling device 6 can be more accurately and flexibly aligned with the tube end.

[0036] Second, when the beveling process is completed, the tube end clamping mechanism 5 releases the single tube of the tube panel, the longitudinal displacement platform 2 drives the tube end processing device to continue to move along the radial direction of the single tube, the fixed clamping block 15 of the tube end clamping mechanism 5 is attached to the lower surface of the tube panel, and the tube end processing device automatically moves along the radial direction of the tube panel contour fluctuation, thereby avoiding repeated movement of the transverse displacement platform 3 and saving processing time.

[0037] Third, the adaptive device comprises four suspension mechanisms 7, the four suspension mechanisms 7 are symmetrically arranged on opposite sides of the mounting shell, the lower end of the suspension mechanism 7 is rotationally connected with the height adjusting mechanism 4 through a lower ball seat 8, and the upper end of the suspension mechanism 7 is rotationally connected with the side support of the mounting shell through an upper ball seat 9, so that the tube end processing device can be floated at any angle up and down and left and right, has wide applicability and is stable.

[0038] In an embodiment, the suspension mechanism 7 comprises a sleeve, a spring and a telescopic rod, the sleeve is sleeved with the telescopic rod, the spring is arranged in the sleeve, and the suspension mechanism 7 adopts such a structure, so that the damage of one does not affect the use of others, and the replacement and maintenance are facilitated.

[0039] In one embodiment, the height adjustment mechanism 4 includes an adjustment drive device 10, a quadrilateral linkage mechanism 11, a longitudinal guide rail 12, and two sliding support plates 13. The longitudinal guide rail 12 is fixedly connected to the transverse displacement platform 3, and the longitudinal guide rail 12 is connected to two guide sliders 14. The two sliding support plates 13 are laterally slidably connected to the transverse displacement platform 3. The two guide sliders 14 are respectively connected to two opposite corners of the quadrilateral linkage mechanism 11, and the two sliding support plates 13 are respectively connected to the other two opposite corners of the quadrilateral linkage mechanism 11. Each sliding support plate 13 is connected to two suspension mechanisms 7. The adjustment drive device 10 can be a hydraulic cylinder. When the hydraulic cylinder extends, it deforms the quadrilateral linkage mechanism 11, which drives the longitudinal distance between the two guide sliders 14 to increase, causing the two sliding support plates 13 to move towards each other, making the angle of the four suspension mechanisms 7 larger and closer to vertical, thereby increasing the height of the pipe end processing device. The above solution has an ingenious structure. One adjustment drive device 10 can drive the synchronous movement of the four suspension mechanisms 7 to complete the height adjustment, which is convenient and provides stable support.

[0040] The pipe end clamping mechanism 5 includes a fixed clamping block 15, a movable clamping block 16, and a clamping drive cylinder 17. The telescopic rod of the clamping drive cylinder 17 is rotatably connected to one end of the guide rod, and the other end of the guide rod is rotatably connected to the movable clamping block 16. The fixed clamping block 15 is fixedly connected to the mounting housing, and the movable clamping block 16 is movably connected to the mounting housing. After the clamping drive cylinder 17 extends, it causes the movable clamping block 16 to move downward through the guide rod. The movable clamping block 16 and the fixed clamping block 15 cooperate to clamp the pipe end of the screen. The fixed clamping block 15 has guide inclined walls on both sides. The fixed clamping block 15 has a mounting through hole, and a trigger device 18 is connected through the mounting through hole. The beveling device 6 includes a beveling cutter and a beveling drive device. The beveling cutter is installed between the movable clamping block 16 and the fixed clamping block 15, and the beveling drive device is installed in the mounting housing and connected to the beveling cutter.

[0041] In the above scheme, the guide rod converts the horizontal reciprocating motion of the clamping drive cylinder 17 into the vertical displacement of the movable clamping block 16. The movable clamping block 16 and the fixed clamping block 15 cooperate vertically to clamp or release the single pipe. The fixed clamping block 15 is provided with guide inclined walls on both sides, which makes it easier for the fixed clamping block 15 to adhere to the lower surface of the pipe screen, so that the pipe end processing device can automatically move radially along the undulating shape of the pipe screen. After the pipe end is clamped, the beveling tool removes the excess material at the pipe end by rotating and making a transverse cut. The trigger device 18 is selected as a stroke position switch.

[0042] The longitudinal displacement platform 2 comprises a step motor 19 connected with a longitudinally arranged ball screw 20, the ball screw 20 is connected with a screw nut 21, the screw nut 21 is connected with a longitudinal displacement plate 22; the longitudinal displacement plate 22 is slidably connected with the fixed frame 1 through a longitudinally arranged first slide rail 23; the transverse displacement platform 3 comprises a step motor 24 connected with a transversely arranged ball screw 25, the ball screw 25 is connected with a screw nut 26, the screw nut 26 is connected with a transverse displacement plate 27, the transverse displacement plate 27 is supported and connected with the longitudinal displacement plate 22 through a transversely arranged second slide rail 28.

[0043] The application provides a processing method of a tube panel tube end processing device, comprising the following steps:

[0044] S1, the transverse displacement platform 3 drives the tube end processing device to walk along the axial direction of the tube end until the tube panel extends to the pre-clamping distance position of the tube end clamping mechanism 5, then the longitudinal displacement platform 2 drives the tube end processing device to walk along the radial direction of the single tube tube end until the lower generatrix of the single tube tube end touches the trigger device 18 of the tube end clamping mechanism 5, the trigger device 18 sends a signal, and the longitudinal displacement platform 2 stops walking;

[0045] S2, the tube end clamping mechanism 5 clamps the single tube tube end, and the beveling device 6 performs beveling processing on the tube end of the single tube;

[0046] S3, after the beveling processing is completed, the tube end clamping mechanism 5 releases the tube panel single tube, the longitudinal displacement platform 2 drives the tube end processing device to continue walking along the radial direction of the single tube, the fixed clamping block 15 of the tube end clamping mechanism 5 tightly abuts against the lower surface of the tube panel, the tube end processing device automatically walks along the radial direction of the tube panel contour fluctuation until the generatrix of the next single tube touches the trigger device 18.

[0047] The working process of the application is as follows:

[0048] The single tubes of the tube panel are arranged longitudinally fixedly, and the tube end processing device walks longitudinally to process each tube end automatically in sequence; specifically, the tube panel to be processed is arranged at a fixed distance and a fixed height from the fixed frame 1, the height adjusting device adjusts the tube end processing device to a corresponding height, the transverse displacement platform 3 drives the tube end processing device to walk along the axial direction of the single tube, until the tube panel extends to a pre-clamping distance position of the tube end clamping mechanism 5, then the longitudinal displacement platform 2 drives the tube end processing device to walk along the radial direction of the single tube, until the lower bus of the single tube of the tube panel triggers the trigger device 18, the trigger device 18 sends a signal, the longitudinal displacement platform 2 stops walking, the tube end clamping mechanism 5 clamps the single tube of the tube panel, the bevel device 6 performs bevel processing on the tube end of the single tube, after completion, the tube end clamping mechanism 5 releases the single tube of the tube panel, the longitudinal displacement platform 2 drives the tube end processing device to continue walking along the radial direction of the single tube, in this process, the fixed clamping block 15 walks along the lower surface of the tube panel, and since the self-adapting device is connected with the tube end processing device, the tube end processing device automatically walks along the radial direction of the contour fluctuation of the tube panel, until the bus of the next single tube triggers the trigger device, the above steps are repeated, until the processing of all single tubes is completed.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tube end processing gage fixture for a tube panel, the fixture comprising: The utility model provides a fixed frame (1), the upper side of fixed frame (1) is equipped with longitudinal displacement platform (2), the upper side of longitudinal displacement platform (2) is equipped with transverse displacement platform (3), the upper side of transverse displacement platform (3) is equipped with height adjusting mechanism (4), height adjusting mechanism (4) is connected adaptive device, adaptive device is connected with pipe end processing device, and pipe end processing device has spatial interval with transverse displacement platform, Height adjusting mechanism (4) includes adjusting drive device (10), quadrilateral linkage (11), longitudinal guide rail (12) and two sliding support plates (13), longitudinal guide rail (12) is fixedly connected with transverse displacement platform (3), longitudinal guide rail (12) is connected with two guide sliding blocks (14), and two sliding support plates (13) are transversely slidably connected with transverse displacement platform (3), two guide sliding blocks (14) are connected with two opposite corners of quadrilateral linkage (11) respectively, and two sliding support plates (13) are connected with other two opposite corners of quadrilateral linkage (11) respectively, and each sliding support plate (13) is connected with two suspension mechanisms (7). Pipe end processing device includes mounting shell, pipe end clamping mechanism (5) and beveling device (6) connected with mounting shell, adaptive device includes four suspension mechanisms (7), four suspension mechanisms (7) are symmetrically arranged on opposite sides of mounting shell, lower end of suspension mechanism (7) is rotatably connected with height adjusting mechanism (4) through lower ball seat (8), and upper end of suspension mechanism (7) is rotatably connected with side support of mounting shell through upper ball seat (9), Pipe end clamping mechanism (5) includes fixed clamping block (15), movable clamping block (16) and clamping drive oil cylinder (17), the telescopic rod of clamping drive oil cylinder (17) is rotatably connected with one end of guide rod, and the other end of guide rod is rotatably connected with movable clamping block (16), fixed clamping block (15) is fixedly connected with mounting shell, movable clamping block (16) is movably connected with mounting shell, after clamping drive oil cylinder (17) is stretched out, movable clamping block (16) is displaced downward through guide rod, and movable clamping block (16) is clamped with fixed clamping block (15) cooperatively.

2. The tube sheet tube end machining gage clamp apparatus of claim 1, wherein, The both sides of fixed clamping block (15) are equipped with guide inclined wall.

3. The tube sheet tube end machining gage clamp apparatus of claim 1, wherein, Fixed clamping block (15) is provided with mounting through hole, and trigger device (18) is connected in the mounting through hole.

4. The tube sheet tube end machining gage clamp apparatus of claim 1 wherein, Beveling device (6) includes beveling cutter and beveling drive device, beveling cutter is installed between movable clamping block (16) and fixed clamping block (15), and beveling drive device is installed in mounting shell and is connected with beveling cutter.

5. The tube sheet tube end machining gage clamp apparatus of claim 1 wherein, The longitudinal displacement platform (2) comprises a step motor I (19), the step motor I (19) is connected with a longitudinally arranged ball screw I (20), the ball screw I (20) is connected with a screw nut I (21), and the screw nut I (21) is connected with a longitudinal displacement plate (22); the longitudinal displacement plate (22) is slidably connected with the fixed rack (1) through a longitudinally arranged first slide rail (23).

6. The tube sheet tube end machining gage clamp apparatus of claim 1, wherein, The transverse displacement platform (3) comprises a step motor II (24), the step motor II (24) is connected with a transversely arranged ball screw II (25), the ball screw II (25) is connected with a screw nut II (26), the screw nut II (26) is connected with a transverse displacement plate (27), and the transverse displacement plate (27) is supported and connected with the longitudinal displacement plate (22) through a transversely arranged second slide rail (28).

7. The tube sheet tube end machining gage clamp apparatus of claim 1 wherein, The suspension mechanism (7) comprises a sleeve, a spring and an extension rod, the sleeve is sleeved with the extension rod, and the spring is arranged in the sleeve.

8. The method of claim 1, wherein the method further comprises: The method comprises the following steps: S1, the transverse displacement platform (3) drives the pipe end processing device to move along the axial direction of the pipe screen pipe end until the pipe screen extends to the pre-clamping distance position of the pipe end clamping mechanism (5), then the longitudinal displacement platform (2) drives the pipe end processing device to move along the radial direction of the single pipe pipe end until the lower generatrix of the single pipe pipe end touches the trigger device (18) of the pipe end clamping mechanism (5), the trigger device (18) sends a signal, and the longitudinal displacement platform (2) stops moving; S2, the pipe end clamping mechanism (5) clamps the single pipe pipe end, and the beveling device (6) bevels the pipe end of the single pipe; S3, after the beveling is completed, the pipe end clamping mechanism (5) releases the pipe screen single pipe, the longitudinal displacement platform (2) drives the pipe end processing device to continue to move along the radial direction of the single pipe, the fixed clamping block (15) of the pipe end clamping mechanism (5) is attached to the lower surface of the pipe screen, the pipe end processing device automatically moves along the radial direction of the pipe screen contour fluctuation until the generatrix of the next single pipe touches the trigger device (18).

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