CN221870539U

CN221870539U - Round tube chamfering equipment

Info

Publication number: CN221870539U
Application number: CN202420433750.7U
Authority: CN
Inventors: 秦振翰; 秦忠贤
Original assignee: Suzhou Jinbangdi Pipe Technology Co ltd
Current assignee: Suzhou Jinbangdi Pipe Technology Co ltd
Priority date: 2024-03-06
Filing date: 2024-03-06
Publication date: 2024-10-22
Anticipated expiration: 2034-03-06

Abstract

The application relates to the technical field of round tube machining, in particular to round tube chamfering equipment, which comprises a frame, a support frame, a chuck and a chamfering mechanism, wherein the support frame is arranged at one end of the frame, and the chuck is arranged on the support frame; the chamfering mechanism is arranged at one end of the frame far away from the supporting frame; the connecting mechanism comprises a connecting block and a connecting assembly, the supporting frame is arranged on the connecting block, a connecting groove is formed in the frame in a penetrating mode, and the connecting block is slidably arranged in the connecting groove; the connecting component is arranged on the supporting frame and is connected with the frame. The application has the effect of improving efficiency.

Description

Round tube chamfering equipment

Technical Field

The application relates to the technical field of round tube machining, in particular to round tube chamfering equipment.

Background

The metal round tube is a metal part commonly used by people, and is related to life or many industries, and chamfering treatment is needed to be carried out on the round tube in the using process of people in many times.

At present, the round tube chamfering equipment comprises a frame, wherein a support frame is fixedly connected to one end of the frame, and a chuck is fixedly connected to the support frame; the frame is far away from the fixing frame one end is provided with a chamfering mechanism. Placing a round pipe needing chamfering on a chuck and clamping the round pipe through the chuck; and then chamfering the round tube clamped by the chuck by using a chamfering mechanism. And under normal conditions, in order to guarantee the chamfering efficiency of the chamfering mechanism to the round pipe, the distance existing between the chamfering mechanism and the supporting frame is limited.

Because the chuck is fixed on the support frame, the support frame is fixed in the frame, when the chuck is close to one end of the chamfering mechanism for maintenance, the maintenance is convenient because of the existence of the chamfering mechanism, thereby leading to the change of the whole maintenance time and reducing the efficiency.

Disclosure of utility model

In order to improve maintenance efficiency, the application provides round tube chamfering equipment.

The application provides round tube chamfering equipment, which adopts the following technical scheme:

The round tube chamfering equipment comprises a frame, a support frame, a chuck and a chamfering mechanism, wherein the support frame is arranged at one end of the frame, and the chuck is arranged on the support frame; the chamfering mechanism is arranged at one end of the frame far away from the supporting frame; the connecting mechanism comprises a connecting block and a connecting assembly, the supporting frame is arranged on the connecting block, a connecting groove is formed in the frame in a penetrating mode, and the connecting block is slidably arranged in the connecting groove; the connecting component is arranged on the supporting frame and is connected with the frame.

By adopting the technical scheme, the connecting blocks on the support frame slide into the connecting grooves, and then the support frame is fixed on the frame by the connecting components; placing a round pipe to be chamfered on a chuck of a supporting frame, then clamping the round pipe by the chuck, and finally chamfering the round pipe clamped by the chuck by using a chamfering mechanism; the connecting mechanism can facilitate the support frame to be detached from the rack and maintain the support frame and the chuck, so that the maintenance efficiency of the chuck is improved; and when connecting the support frame in the frame, can increase the counter weight of support frame to improve the stability of support frame in the frame when chamfering the pipe of chuck centre gripping of chamfering mechanism, and then improve the stability of pipe when chamfering.

Optionally, the spread groove is the dovetail, the connecting block vertical section is trapezoidal, just the connecting block is close to the cross section of support frame one end is less than the connecting block is kept away from the cross section of support frame one end.

Through adopting above-mentioned technical scheme, the vertical section that sets up is trapezoidal connecting block and dovetail can prescribe a limit to the connecting block, reduces the motion of connecting block in vertical direction to improve the stability of connecting block in the frame, and then improve the stability of support frame on the connecting block.

Optionally, the connecting assembly includes connecting plate and connecting bolt, the connecting plate sets up on the support frame, connecting bolt passes the connecting plate with frame threaded connection.

By adopting the technical scheme, the connecting bolt passes through the connecting plate to be in threaded connection with the rack, so that the support frame is fixed on the rack; the connecting component is simple in structure and convenient to operate.

Optionally, an auxiliary limiting mechanism is arranged on the stand, the auxiliary limiting mechanism comprises a limiting block, a reinforcing block and an adjusting component, the limiting block is arranged on the stand, and the connecting block is abutted against the limiting block; the reinforcing block is arranged on the frame in a sliding mode through the adjusting component, and the connecting block is provided with a reinforcing groove which is connected with the reinforcing block in a clamping mode.

By adopting the technical scheme, the connecting block is slipped into the connecting groove, and the connecting block is abutted against the limiting block; then, starting an adjusting component, and driving the reinforcing block to move by the adjusting component so as to enable the reinforcing block to be clamped with the reinforcing groove on the connecting block; finally, the support frame and the frame are connected through the connecting component; the auxiliary limiting mechanism can position the connecting block in the connecting groove and can improve the stability of the connecting block in the connecting groove.

Optionally, the adjusting assembly comprises an adjusting motor, a first gear and a first rack, the adjusting motor is arranged on the rack, and the first gear is connected to an output shaft of the adjusting motor in a key manner; the first rack is arranged on the reinforcing block and meshed with the first gear.

By adopting the technical scheme, the regulating motor is started, the output shaft of the regulating motor drives the first gear to rotate, and the first rack meshed with the first gear drives the reinforcing block to move.

Optionally, a positioning mechanism is arranged on the support frame, the positioning mechanism comprises a guide rail, a sliding block, a lifting block, a positioning block and a lifting cylinder, the guide rail is arranged on the support frame, and the guide rail is positioned between the chuck and the chamfering mechanism; the sliding block is arranged on the guide rail in a sliding way, the lifting block is arranged on the sliding block, and the positioning block is arranged on one side, far away from the chamfering mechanism, of the lifting block; the cylinder body of the lifting cylinder is arranged on the supporting frame, and the piston rod is connected with the lifting block.

By adopting the technical scheme, the lifting cylinder is started, the piston rod of the lifting cylinder drives the lifting block to move, and the lifting block drives the positioning block to move, so that the positioning block is aligned to the chuck; then, the round tube is placed on the chuck, and when the round tube abuts against the positioning block, the round tube is clamped by the chuck; starting the lifting cylinder, so that the lifting cylinder does not contact the positioning block any more, and chamfering the round tube clamped by the chuck by the chamfering mechanism; the positioning mechanism that sets up can make every pipe need the position of chamfer all be in the same position, and the chamfering machine of being convenient for carries out the chamfer to the pipe, therefore, the positioning mechanism who sets up reduces the adjustment time of pipe to raise the efficiency.

Optionally, the supporting frame comprises a fixed block, a supporting block, a fixed plate and a fixed piece, wherein the fixed block is arranged on the connecting block, and the chuck and the guide rail are both arranged on the fixed block; the supporting block is arranged on the fixed block, the fixed plate is arranged on the supporting block through the fixed piece, and the cylinder body of the lifting cylinder is arranged on the fixed plate.

By adopting the technical scheme, when the lifting cylinder is damaged, the fixing piece is not connected with the fixing plate and the supporting block, the fixing plate is separated from the supporting block, and then the fixing plate is taken down to repair the lifting cylinder; therefore, the detachable support frame is arranged to facilitate maintenance of the lifting cylinder, so that the time is saved and the efficiency is improved.

Optionally, the supporting block is provided with a stabilizing mechanism, the stabilizing mechanism includes a first clamping block, a stabilizing block and an adjusting component, the first clamping block is arranged on the fixing plate, and the supporting block is provided with a first clamping groove clamped with the first clamping block; the stabilizing block is arranged on the supporting block through the adjusting component, and a stabilizing groove which is connected with the stabilizing block in a clamping mode is formed in the first clamping block.

By adopting the technical scheme, the first clamping block on the fixed plate is clamped with the first clamping groove on the supporting block, and then the stabilizing block is driven to move through the adjusting component, so that the stabilizing block is clamped with the stabilizing groove on the first clamping block, and the connection between the stabilizing block and the first clamping block is realized; the stability of fixed plate on the supporting shoe can be improved to the firm mechanism that sets up.

Optionally, the adjusting assembly includes an adjusting shaft, a second gear and a second rack, the adjusting shaft is rotatably arranged on the supporting block, and the second gear is connected to the adjusting shaft in a key manner; the second rack is arranged on the stabilizing block and meshed with the second gear.

By adopting the technical scheme, the adjusting shaft is rotated, the second gear on adjustment drives the second rack to move, and the second rack can drive the stabilizing block to move.

Optionally, the chamfering mechanism comprises a moving block, a driving motor, a cutter head and a moving assembly, wherein the moving block is slidably arranged on the frame, the driving motor is arranged on the moving block, and the cutter head is arranged on an output shaft of the driving motor; the moving assembly is arranged on the frame and connected with the moving block.

By adopting the technical scheme, when the round tube is required to be chamfered, the moving assembly is started, the moving assembly drives the moving block to move in the direction of approaching the round tube on the frame, and the driving motor on the moving block drives the tool bit to move, so that the tool bit abuts against the round tube which is required to be chamfered; then, the driving motor is started, and the output shaft of the driving motor drives the tool bit to move and rotate, so that the tool bit carries out chamfering treatment on the round tube.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The connecting mechanism can facilitate the support frame to be detached from the rack and maintain the support frame and the chuck, so that the maintenance efficiency of the chuck is improved; when the support frame is connected to the frame, the counterweight of the support frame can be increased, so that the stability of the support frame on the frame when the chamfering mechanism chamfering a round tube clamped by the chuck is improved, and the stability of the round tube during chamfering is further improved;

2. The auxiliary limiting mechanism can position the connecting block in the connecting groove and can improve the stability of the connecting block in the connecting groove.

Drawings

FIG. 1 is a schematic structural view of a chamfering apparatus for round pipes according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a positioning mechanism according to an embodiment of the present application;

FIG. 3 is a schematic structural view of an auxiliary limiting mechanism according to an embodiment of the present application;

FIG. 4 is a schematic view of an adjusting assembly according to an embodiment of the present application;

FIG. 5 is a schematic view of a stabilizing mechanism according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an adjusting component according to an embodiment of the application.

Reference numerals: 1. a frame; 11. a connecting groove; 12. a material collecting groove; 2. a support frame; 21. a fixed block; 22. a support block; 23. a fixing plate; 24. a fixing member; 3. a chuck; 4. chamfering mechanism; 41. a moving block; 42. a driving motor; 43. a cutter head; 44. a moving assembly; 441. a mounting block; 442. a guide rod; 443. a screw; 444. a moving motor; 5. a connecting mechanism; 51. a connecting block; 52. a connection assembly; 521. a connecting plate; 522. a connecting bolt; 6. an auxiliary restricting mechanism; 61. a limiting block; 62. a reinforcing block; 63. an adjustment assembly; 631. adjusting a motor; 632. a first gear; 633. a first rack; 64. a second clamping block; 7. a positioning mechanism; 71. a guide rail; 72. a slide block; 73. a lifting block; 74. a positioning block; 75. a lifting cylinder; 8. a stabilizing mechanism; 81. a first clamping block; 82. a stabilizing block; 83. an adjustment assembly; 831. an adjustment shaft; 832. a second gear; 833. and a second rack.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses round tube chamfering equipment.

Referring to fig. 1, a round tube chamfering device comprises a frame 1, wherein a support frame 2 is arranged at one end of the frame 1, a connecting mechanism 5 connected with the frame 1 is arranged on the support frame 2, and a chuck 3 is arranged on the support frame 2; one end of the frame 1 far away from the support frame 2 is provided with a chamfering mechanism 4; a material collecting groove 12 is formed in the frame 1 between the chamfering mechanism 4 and the supporting frame 2, a positioning mechanism 7 is arranged on the supporting frame 2, and the positioning mechanism 7 is located between the chuck 3 and the chamfering mechanism 4.

The round tube needing chamfering is placed on the chuck 3 of the supporting frame 2, the round tube is positioned by the positioning mechanism 7, then the round tube is clamped by the chuck 3, finally chamfering is carried out on the round tube clamped by the chuck 3 by the chamfering mechanism 4, and chips generated by processing fall into the collecting groove 12.

Referring to fig. 2 and 3, a connection groove 11 is formed in the frame 1 in a penetrating manner, and the connection groove 11 is a dovetail groove. The connecting mechanism 5 comprises a connecting block 51 which is connected in the connecting groove 11 in a sliding manner, the vertical section of the connecting block 51 is trapezoid, and the cross section of one end of the connecting block 51 close to the support frame 2 is smaller than the cross section of one end of the connecting block 51 far away from the support frame 2. The support frame 2 is provided with a connecting component 52, the connecting component 52 comprises a connecting plate 521 fixedly connected to the support frame 2, and the connecting plate 521 is provided with a connecting bolt 522 which penetrates through the connecting plate 521 and is in threaded connection with the frame 1.

Referring to fig. 2, 3 and 4, a second clamping groove is formed in the bottom wall of the connecting groove 11, an auxiliary limiting mechanism 6 connected with the connecting block 51 is arranged on the frame 1, the auxiliary limiting mechanism 6 comprises a second clamping block 64 clamped with the second clamping groove, and a limiting block 61 is fixedly connected to the second clamping block 64; the frame 1 is connected with a reinforcing block 62 in a sliding manner, and the connecting block 51 is provided with a reinforcing groove which is clamped with the reinforcing block 62. The machine frame 1 is provided with an adjusting assembly 63, the adjusting assembly 63 comprises an adjusting motor 631 fixedly connected to the machine frame 1, and a first gear 632 is connected to an output shaft of the adjusting motor 631 in a key manner; the reinforcement block 62 is fixedly connected with a first rack 633 engaged with the first gear 632.

Firstly, clamping a second clamping block 64 on the limiting block 61 with a second clamping groove on the frame 1, wherein one end of the limiting block 61, which is close to the second clamping block 64, is positioned in the connecting groove 11; then the connecting block 51 is slipped into the connecting groove 11, when the connecting block 51 is abutted against the limiting block 61, the adjusting motor 631 is started, the output shaft of the adjusting motor 631 drives the first gear 632 to rotate, the first gear 632 drives the first rack 633 to move, the first rack 633 drives the reinforcing block 62 to move towards the direction close to the connecting block 51, and the reinforcing block 62 is clamped with the reinforcing groove on the connecting block 51; the connecting bolt 522 is then threaded through the connecting plate 521 to the frame 1.

Referring to fig. 2 and 5, the support frame 2 includes fixing blocks 21 fixedly connected to the connection block 51, two fixing blocks 21 are provided, a connection plate 521 in the connection assembly 52 is fixedly connected to the fixing blocks 21, the chuck 3 is located between the two fixing blocks 21, and both fixing blocks 21 are connected to the chuck 3; the end of each fixed block 21, which is far away from the connecting block 51, is provided with a supporting block 22; one side of the supporting blocks 22 far away from the connecting block 51 is provided with a fixing plate 23, two supporting blocks 22 are abutted against the connecting block 51, the fixing plate 23 is provided with a fixing piece 24, the fixing piece 24 is a fixing bolt, and the fixing bolt penetrates through the fixing plate 23 to be in threaded connection with the supporting blocks 22.

Referring to fig. 5 and 6, in order to mount the support block 22 on the fixing block 21 and to improve the stability of the fixing plate 23 on the support block 22, both ends of the support block 22 are provided with the fixing mechanisms 8, and this embodiment is described taking the fixing mechanism 8 connecting the support block 22 and the fixing plate 23 as an example.

The stabilizing mechanism 8 comprises a first clamping block 81, the first clamping block 81 is fixedly connected to the fixed plate 23, a first clamping groove which is clamped with the first clamping block 81 is formed in one end, close to the fixed plate 23, of the supporting block 22, and a stabilizing groove is formed in the first clamping block 81 positioned in the first clamping groove; the support block 22 is slidably connected with a fixing block 82, and the fixing block 82 is clamped with a fixing groove on the first clamping block 81. The support block 22 is provided with an adjusting assembly 83, the adjusting assembly 83 comprises an adjusting shaft 831 rotatably connected to the support block 22, and a second gear 832 is connected to the adjusting shaft 831 in a key manner; a second rack 833 meshed with the second gear 832 is fixedly connected to the stabilizing block 82.

When the first clamping block 81 is located in the first clamping groove of the supporting block 22 and the fixing plate 23 abuts against the supporting block 22, the adjusting shaft 831 is rotated, the first gear 632 on the adjusting shaft 831 drives the first rack 633 to move, and the first rack 633 drives the fixing block 82 to move in a direction close to the first clamping block 81, so that the fixing block 82 is clamped with the clamping groove on the first clamping block 81.

The first clamping block 81 in the stabilizing mechanism 8 for connecting the supporting block 22 and the fixed block 21 is fixedly connected to one end of the fixed block 21 far away from the connecting block 51; the first clamping block 81 on the fixed block 21 is clamped with the first clamping groove on the supporting block 22, and then the adjusting shaft 831 is rotated, so that the fixing block 82 is clamped with the fixing groove on the first clamping block 81 connected to the fixed block 21, and the supporting block 22 is connected to the fixed block 21.

Referring to fig. 1 and 2, the positioning mechanism 7 includes guide rails 71 fixed on the fixed blocks 21 by bolts, the guide rails 71 are located between the chuck 3 and the chamfering mechanism 4, one guide rail 71 is connected to each fixed block 21, and one slider 72 is slidingly connected to each guide rail 71; the fixed plate 23 is connected with a lifting air cylinder 75 through a bolt, the cylinder body of the lifting air cylinder 75 is connected with the fixed plate 23, the piston rod of the lifting air cylinder 75 is connected with a lifting block 73, two ends of the lifting block 73 are respectively connected with two sliding blocks 72 through bolts, and a positioning block 74 is fixedly connected to one side of the lifting block 73, which is close to the chuck 3.

Starting a lifting cylinder 75, wherein a piston rod of the lifting cylinder 75 drives a lifting block 73 to move, and a sliding block 72 connected with the lifting block 73 moves on a guide rail 71; the position of the positioning block 74 also changes when the lifting block 73 moves.

Referring to fig. 1, the chamfering mechanism 4 includes a moving block 41 slidably connected thereto, a driving motor 42 is fixedly connected to the moving block 41, and a cutter head 43 is connected to an output shaft of the driving motor 42. The frame 1 is provided with a moving assembly 44, the moving assembly 44 comprises two mounting blocks 441 fixedly connected to the frame 1, the moving block 41 is located between the two mounting blocks 441, and each mounting block 441 is connected with an organ cover connected with the moving block 41. A guide rod 442 is arranged between the two mounting blocks 441, and the moving block 41 is slidably arranged on the guide rod 442; a screw 443 is rotatably connected between the two mounting blocks 441, the screw 443 is rotatably arranged on the mounting block 441, and the screw 443 passes through the moving block 41 and is in threaded connection with the moving block 41; a movable motor 444 is fixedly connected to the frame 1 far away from one end of the fixed block 21, and an output shaft of the movable motor 444 is connected with one end of the screw 443.

Starting a moving motor 444, wherein an output shaft of the moving motor 444 drives a screw 443 to rotate, the screw 443 drives a moving block 41 to move towards the direction approaching to the fixed block 21, and a driving motor 42 on the moving block 41 drives a cutter head 43 to move towards the direction approaching to the fixed block 21 and to abut against the round tube; the driving motor 42 is started, the output shaft of the driving motor 42 drives the cutter head 43 to rotate, and the cutter head 43 can chamfer the round tube.

The embodiment of the application provides a round tube chamfering device, which is implemented by the following principle: firstly, starting a lifting cylinder 75, lifting a block 73 to drive a positioning block 74 to descend so that the positioning block 74 is aligned with a chuck 3, then placing a round pipe to be chamfered on the chuck 3, and enabling the round pipe to abut against the positioning block 74; and then the chuck 3 is made to hold the round tube. The lifting cylinder 75 is started again, so that the lifting block 73 drives the positioning block 74 to lift, and the positioning block 74 does not contact the round pipe any more. Finally, the moving motor 444 and the driving motor 42 are started again, so that the cutter head 43 performs chamfering treatment on the round tube, and scraps generated by the chamfering treatment fall into the collecting groove 12.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The round tube chamfering equipment comprises a frame (1), a support frame (2), a chuck (3) and a chamfering mechanism (4), wherein the support frame (2) is arranged at one end of the frame (1), and the chuck (3) is arranged on the support frame (2); the chamfering mechanism (4) is arranged at one end of the frame (1) far away from the supporting frame (2); the device is characterized by further comprising a connecting mechanism (5), wherein the connecting mechanism (5) comprises a connecting block (51) and a connecting assembly (52), the support frame (2) is arranged on the connecting block (51), a connecting groove (11) is formed in the frame (1) in a penetrating mode, and the connecting block (51) is slidably arranged in the connecting groove (11); the connecting component (52) is arranged on the supporting frame (2) and is connected with the frame (1).

2. The round tube chamfering device according to claim 1, characterized in that the connecting groove (11) is a dovetail groove, the vertical section of the connecting block (51) is trapezoid, and the cross section of one end of the connecting block (51) close to the supporting frame (2) is smaller than the cross section of one end of the connecting block (51) far away from the supporting frame (2).

3. The round tube chamfering apparatus according to claim 1, characterized in that the connecting assembly (52) comprises a connecting plate (521) and a connecting bolt (522), the connecting plate (521) being provided on the support frame (2), the connecting bolt (522) being threaded through the connecting plate (521) with the frame (1).

4. A round tube chamfering apparatus according to claim 1, characterized in that an auxiliary limiting mechanism (6) is provided on the frame (1), the auxiliary limiting mechanism (6) comprises a limiting block (61), a reinforcing block (62) and an adjusting assembly (63), the limiting block (61) is provided on the frame (1), and the connecting block (51) abuts against the limiting block (61); the reinforcing block (62) is slidably arranged on the frame (1) through the adjusting component (63), and the connecting block (51) is provided with a reinforcing groove which is clamped with the reinforcing block (62).

5. The round tube chamfering apparatus according to claim 4, characterized in that the adjusting assembly (63) comprises an adjusting motor (631), a first gear (632) and a first rack (633), the adjusting motor (631) being provided on the frame (1), the first gear (632) being keyed to an output shaft of the adjusting motor (631); the first rack (633) is provided on the reinforcing block (62) and is engaged with the first gear (632).

6. A round tube chamfering apparatus according to claim 1, characterized in that a positioning mechanism (7) is provided on the support frame (2), the positioning mechanism (7) comprises a guide rail (71), a slider (72), a lifting block (73), a positioning block (74) and a lifting cylinder (75), the guide rail (71) is provided on the support frame (2), and the guide rail (71) is located between the chuck (3) and the chamfering mechanism (4); the sliding block (72) is arranged on the guide rail (71) in a sliding manner, the lifting block (73) is arranged on the sliding block (72), and the positioning block (74) is arranged on one side, far away from the chamfering mechanism (4), of the lifting block (73); the cylinder body of the lifting cylinder (75) is arranged on the supporting frame (2) and the piston rod is connected with the lifting block (73).

7. A round tube chamfering apparatus according to claim 6, characterized in that the supporting frame (2) comprises a fixed block (21), a supporting block (22), a fixed plate (23) and a fixing piece (24), the fixed block (21) being provided on the connecting block (51), the chuck (3) and the guide rail (71) being provided on the fixed block (21); the support block (22) is arranged on the fixed block (21), the fixed plate (23) is arranged on the support block (22) through the fixed piece (24), and the cylinder body of the lifting cylinder (75) is arranged on the fixed plate (23).

8. The round tube chamfering equipment according to claim 7, characterized in that a stabilizing mechanism (8) is arranged on the supporting block (22), the stabilizing mechanism (8) comprises a first clamping block (81), a stabilizing block (82) and an adjusting component (83), the first clamping block (81) is arranged on the fixing plate (23), and a first clamping groove which is clamped with the first clamping block (81) is formed in the supporting block (22); the stabilizing block (82) is arranged on the supporting block (22) through the adjusting component (83), and a stabilizing groove which is clamped with the stabilizing block (82) is formed in the first clamping block (81).

9. The round tube chamfering apparatus according to claim 8, characterized in that the adjusting assembly (83) comprises an adjusting shaft (831), a second gear (832) and a second rack (833), the adjusting shaft (831) being rotatably provided on the supporting block (22), the second gear (832) being keyed to the adjusting shaft (831); the second rack (833) is arranged on the stabilizing block (82) and is meshed with the second gear (832).

10. A round tube chamfering apparatus according to claim 1, characterized in that the chamfering mechanism (4) comprises a moving block (41), a driving motor (42), a cutter head (43) and a moving assembly (44), the moving block (41) being slidably provided on the frame (1), the driving motor (42) being provided on the moving block (41), the cutter head (43) being provided on an output shaft of the driving motor (42); the moving assembly (44) is arranged on the frame (1) and is connected with the moving block (41).