CN112621244B

CN112621244B - Cutting, chamfering and welding integrated machine for machining automobile air conditioner pipe fitting

Info

Publication number: CN112621244B
Application number: CN202011524523.8A
Authority: CN
Inventors: 丁杰; 李国仁
Original assignee: Zhejiang Gaojin Electronic Technology Co ltd
Current assignee: Zhejiang Gaojin Electronic Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-12-10
Anticipated expiration: 2040-12-22
Also published as: CN112621244A

Abstract

The invention discloses a cutting, chamfering and welding integrated machine for machining automobile air conditioner pipe fittings, which comprises a bottom plate, a conveying belt and a mechanical arm, a conveyor belt is fixedly arranged on one side of the upper surface of the bottom plate, a mechanical arm is fixedly arranged on the upper surface of the bottom plate close to the middle part, the movable end of the mechanical arm clamps a first pipe fitting, a supporting plate is arranged above one side of the bottom plate, the bottom of the supporting plate is fixedly connected with a driving mechanism, a cutting chamfering mechanism is fixedly arranged at the top of the supporting plate, a high-frequency induction coil is arranged on one side of the upper surface of the bottom plate, which is far away from the supporting plate, a clamping mechanism is arranged below the high-frequency induction coil, a second pipe fitting is arranged at the top of the clamping mechanism, and the top of the second pipe fitting is positioned in the middle of the high-frequency induction coil, so that the cutting chamfering precision and efficiency are improved, and the air conditioner pipe fitting is accurately clamped and positioned, so that the high-frequency brazing precision is improved.

Description

Cutting, chamfering and welding integrated machine for machining automobile air conditioner pipe fitting

Technical Field

The invention relates to the technical field of automobile accessory production, in particular to a cutting, chamfering and welding integrated machine for machining an automobile air conditioner pipe fitting.

Background

The automobile air conditioner is used for adjusting and controlling the temperature, the humidity, the air cleanliness and the air flow in an automobile compartment to be in the optimal state, so that a comfortable riding environment is provided for passengers, and the travel fatigue is reduced; the ventilation device creates good working conditions for a driver and plays an important role in ensuring safe driving; generally comprises a refrigerating device, a heating device and a ventilation device; the combined device fully utilizes the limited space in the automobile, has simple structure and convenient operation, and is an internationally popular modern automobile air-conditioning system; the automobile air conditioner is internally provided with a plurality of groups of metal pipe fittings, and in the machining process of the automobile air conditioner pipe fittings, the cutting and chamfering are needed to be carried out on the sections of the metal pipe fittings, so that the high-frequency brazing is convenient to carry out; when high frequency is brazed, because the air conditioner pipe fitting lacks accurate centre gripping location to the precision of brazing is influenced.

Therefore, the cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting is provided.

Disclosure of Invention

The invention aims to provide a cutting, chamfering and welding integrated machine for machining an automobile air conditioner pipe fitting, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a vehicle air conditioner pipe fitting processing is with cutting chamfer welding all-in-one, includes bottom plate, conveyer belt and arm, bottom plate upper surface one side fixed mounting has the conveyer belt, the bottom plate upper surface is close to middle part fixed mounting and has the arm, the end clamp that moves of arm has first pipe fitting, bottom plate one side top is equipped with the backup pad, backup pad bottom fixedly connected with actuating mechanism, backup pad top fixed mounting has cutting chamfer mechanism, the high frequency induction coil is installed to one side that the backup pad was kept away from to the bottom plate upper surface, high frequency induction coil below is equipped with fixture, the second pipe fitting is installed at the fixture top, and the top of second pipe fitting is located high frequency induction coil's middle part.

Preferably, the driving mechanism comprises a movable plate, side plates, a screw rod, a first driving motor and slide rods, the bottom of the supporting plate is fixedly connected with the movable plate, the middle of the movable plate is provided with a threaded hole, the two sides of the movable plate are symmetrically provided with through holes, the upper surface of the bottom plate is symmetrically and fixedly connected with the side plates, the middle parts of the inner sides of the two side plates are rotatably connected with the screw rod through bearings, the movable block is in threaded connection with the screw rod through the threaded hole, one of the side plates away from the second pipe fitting is fixedly provided with the first driving motor, one end of the screw rod close to the first driving motor penetrates through the side plates and is fixedly connected with the output end of the first driving motor, the two side plates are symmetrically and fixedly connected with the slide rods, and the two sides of the movable block are respectively in sliding connection with the two slide rods through the through holes.

Preferably, the cutting chamfering mechanism comprises a second driving motor, a supporting seat, a first rotating rod, a driving wheel, a driven wheel, a second rotating rod, a cutting wheel and a grinding wheel, a second driving motor is fixedly arranged on one side of the top of the supporting plate, supporting seats are symmetrically and fixedly connected with the top of the supporting plate, the middle parts of the supporting seats are rotatably connected with a first rotating rod through bearings, one end of one of the first rotating rods, which is close to the second driving motor, is fixedly connected with the output end of the second driving motor, one ends of the two first rotating rods, which are close to the first pipe fitting, respectively penetrate through the two supporting seats to be fixedly connected with a driving wheel and a driven wheel, the driving wheel and the driven wheel are in transmission connection through a belt, one side of the driven wheel close to the first pipe fitting is fixedly connected with a second rotating rod, and a cutting wheel is fixedly mounted at one end of the second rotating rod, which is close to the first pipe fitting, and a grinding wheel is fixedly mounted in the middle of one side of the cutting wheel, which is close to the first pipe fitting.

Preferably, the clamping mechanism comprises an installation cylinder, a baffle, a support rod, a fixed cylinder, a first swing arm, an arc-shaped clamping plate, a sliding cylinder, a second swing arm, a cylinder and a connecting plate, the installation cylinder is fixedly connected to the upper surface of the bottom plate, the outer surface of the second pipe fitting is in sliding insertion connection with the installation cylinder, the inner wall of the installation cylinder is close to the middle part and is fixedly connected with the baffle, the bottom of the second pipe fitting is in contact with the baffle, the support rod is fixedly connected to the top of the baffle, the support rod is close to the top part and is symmetrically and fixedly connected with the fixed cylinder, the outer side of the fixed cylinder is hinged with the first swing arm through hinges at equal intervals, the arc-shaped clamping plate is arranged at equal intervals on the inner side of the second pipe fitting, the outer side of the arc-shaped clamping plate is in close contact with the inner wall of the second pipe fitting, two matched first swing arms are hinged with the same arc-shaped clamping plate through hinges respectively, the support rod is connected with the sliding cylinder near the bottom in a sliding manner, the sliding barrel outside has the second swing arm through hinge equidistance is articulated, and the second swing arm passes through the hinge and is articulated with arc splint, fixed surface is connected with the cylinder on the bottom plate, the symmetrical fixedly connected with connecting plate of cylinder output, and two connecting plate tops slide and pass baffle and sliding barrel fixed connection.

Preferably, a strip-shaped groove is formed in the inner wall of the sliding barrel, the supporting rod is close to the strip-shaped key fixedly connected with the bottom, and the inner wall of the strip-shaped groove is in sliding insertion connection with the strip-shaped key.

Preferably, a control panel is fixedly mounted on one side of the upper surface of the bottom plate, and the conveyor belt, the mechanical arm, the first driving motor, the second driving motor, the high-frequency induction coil and the air cylinder are electrically connected with the control panel.

Preferably, the first driving motor is a servo motor.

Preferably, the contact part of the movable end of the mechanical arm and the first pipe fitting is made of rubber materials.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the required cutting length of the workpiece to be machined is adjusted through the mechanical arm, the mechanical arm is controlled to assist the air conditioner to machine the pipe fitting to perform the automatic chamfering cutting process, and the driving mechanism is controlled, so that the grinding wheel can horizontally move at a constant speed during chamfering, and compared with a manual machining mode, the chamfering cutting precision and efficiency are improved.

Through running fixture and arm simultaneously, when welding air conditioner pipe fitting, carry out accurate centre gripping location to air conditioner pipe fitting to promote the precision of high frequency brazing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the driving mechanism of the present invention;

FIG. 3 is a schematic structural view of a cutting and chamfering mechanism according to the present invention;

FIG. 4 is a schematic view of the internal structure of the mounting barrel of the present invention;

FIG. 5 is a schematic view of a clamping mechanism according to the present invention;

FIG. 6 is a schematic view of a bar key structure according to the present invention.

In the figure: 1. a base plate; 2. a conveyor belt; 3. a mechanical arm; 4. a first pipe member; 5. a support plate; 6. a drive mechanism; 61. moving the plate; 62. a side plate; 63. a screw rod; 64. a first drive motor; 65. a slide bar; 7. a chamfering mechanism is cut; 71. a second drive motor; 72. a supporting seat; 73. a first rotating lever; 74. a driving wheel; 75. a driven wheel; 76. a second rotating rod; 77. a cutting wheel; 78. a grinding wheel; 8. a high-frequency induction coil; 9. a clamping mechanism; 91. mounting the cylinder; 92. a baffle plate; 93. a support bar; 94. a fixed cylinder; 95. a first swing arm; 96. an arc-shaped splint; 97. a sliding cylinder; 98. a second swing arm; 99. a cylinder; 910. a connecting plate; 10. a second pipe member; 11. a strip-shaped groove; 12. a bar key; 13. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, a cutting, chamfering and welding integrated machine for machining an automobile air conditioner pipe fitting in the figure comprises a bottom plate 1, a conveyor belt 2 and a mechanical arm 3, wherein the conveyor belt 2 is fixedly installed on one side of the upper surface of the bottom plate 1, the mechanical arm 3 is fixedly installed on the upper surface of the bottom plate 1 close to the middle part, the mechanical arm 3 clamps a pipe fitting to be machined on the conveyor belt 2, so that multiple procedures of cutting, chamfering and welding are completed in an auxiliary manner, the mechanical arm 3 is a conventional technology and is not repeated herein, a first pipe fitting 4 is clamped at the movable end of the mechanical arm 3, a support plate 5 is arranged above one side of the bottom plate 1, a driving mechanism 6 is fixedly connected to the bottom of the support plate 5, a tool for cutting and chamfering can be moved linearly by operating the driving mechanism 6, the horizontal position of the support plate 5 is adjusted according to the required cutting length of the first pipe fitting 4, the cutting chamfering mechanism 7 is fixedly installed at the top of the supporting plate 5, the cutting chamfering mechanism 7 is operated to facilitate cutting chamfering of the first pipe fitting 4, the high-frequency induction coil 8 is installed on one side, away from the supporting plate 5, of the upper surface of the bottom plate 1, the clamping mechanism 9 is arranged below the high-frequency induction coil 8, the second pipe fitting 10 is installed at the top of the clamping mechanism 9, the top of the second pipe fitting 10 is located in the middle of the high-frequency induction coil 8, after the second pipe fitting 10 completes the cutting chamfering process, the second pipe fitting 10 is conveyed to the clamping mechanism 9 through the mechanical arm 3 and then clamped through the clamping mechanism 9, after the second pipe fitting 10 is loosened by the mechanical arm 3, the first pipe fitting 4 is taken from the conveying belt 2, after the cutting chamfering process is also completed by the first pipe fitting 4, the first pipe fitting 4 is clamped through the mechanical arm 3, one end face of the first pipe fitting 4 is aligned with and tightly contacted with the end face of the second pipe fitting 10, by operating the high-frequency induction coil 8, a high-frequency brazing process is performed, so that the first pipe fitting 4 and the second pipe fitting 10 are welded.

Referring to fig. 1 and 2, the driving mechanism 6 includes a moving plate 61, side plates 62, a screw rod 63, a first driving motor 64 and two sliding rods 65, the bottom of the supporting plate 5 is fixedly connected with the moving plate 61, a threaded hole is formed in the middle of the moving plate 61, through holes are symmetrically formed in two sides of the moving plate 61, the side plates 62 are symmetrically and fixedly connected to the upper surface of the bottom plate 1, the screw rod 63 is rotatably connected to the middle of the inner sides of the two side plates 62 through a bearing, the moving block is in threaded connection with the screw rod 63 through the threaded hole, the first driving motor 64 is fixedly installed on the outer side of one side plate 62 far away from the second pipe 10, one end of the screw rod 63 close to the first driving motor 64 penetrates through the side plate 62 and is fixedly connected to the output end of the first driving motor 64, the sliding rods 65 are symmetrically and fixedly connected to the inner sides of the two side plates 62, and two sides of the moving block are respectively in sliding connection with the two sliding rods 65 through the through holes, when the driving mechanism 6 is operated, the first driving motor 64 is operated to rotate the screw 63, and since the moving plate 61 is restricted by the two sliding rods 65, when the screw 63 rotates, the moving plate 61 moves linearly along the axial direction of the screw 63, and the supporting plate 5 is driven to adjust the horizontal position.

Referring to fig. 1 and 3, the cutting chamfering mechanism 7 includes a second driving motor 71, supporting seats 72, first rotating rods 73, a driving wheel 74, a driven wheel 75, second rotating rods 76, a cutting wheel 77 and a grinding wheel 78, the second driving motor 71 is fixedly installed on one side of the top of the supporting plate 5, the supporting seats 72 are symmetrically and fixedly connected to the top of the supporting plate 5, the middle portions of the supporting seats 72 are rotatably connected to the first rotating rods 73 through bearings, one end of one of the first rotating rods 73 close to the second driving motor 71 is fixedly connected to the output end of the second driving motor 71, one ends of the two first rotating rods 73 close to the first pipe 4 respectively penetrate through the two supporting seats 72 and are fixedly connected to the driving wheel 74 and the driven wheel 75, the driving wheel 74 and the driven wheel 75 are connected through a belt, the second rotating rod 76 is fixedly connected to one side of the driven wheel 75 close to the first pipe 4, a cutting wheel 77 is fixedly installed at one end of the second rotating rod 76 close to the first pipe fitting 4, a grinding wheel 78 is fixedly installed at the middle part of one side of the cutting wheel 77 close to the first pipe fitting 4, when the cutting chamfering mechanism 7 is operated, the first rotating rod 73 drives the driving wheel 74 to rotate at a high speed by operating the second driving motor 71, the driving wheel 74 and the driven wheel 75 are driven by a belt, so that the driven wheel 75 rotates synchronously with the driving wheel 74, the second rotating rod 76 drives the cutting wheel 77 and the grinding wheel 78 to rotate at a high speed simultaneously, when the first pipe fitting 4 is cut, the support plate 5 is kept static, the mechanical arm 3 drives the first pipe fitting 4 to calibrate, the surface to be cut of the first pipe fitting 4 is aligned with the end surface of the cutting wheel 77, the first pipe fitting 4 is positioned above the cutting wheel 77, and when the cutting wheel 77 rotates at a high speed, the mechanical arm 3 drives the first pipe fitting 4 to vertically move downwards, thereby cutting the first pipe 4 and then withdrawing the first pipe 4; when the end face edge of the first pipe fitting 4 needs to be chamfered, the mechanical arm 3 rotates the first pipe fitting 4 to enable the edge of the end face of the first pipe fitting 4 to incline for a certain angle, then the first pipe fitting 4 keeps static, the end face of the grinding wheel 78 is enabled to be close to the first pipe fitting 4 while rotating at a high speed by operating the driving mechanism 6, and edge chamfering processing is conducted on the end face of the grinding wheel 78.

Referring to fig. 1, 4 and 5, the clamping mechanism 9 includes an installation cylinder 91, a baffle 92, a support rod 93, a fixed cylinder 94, a first swing arm 95, an arc-shaped clamp plate 96, a sliding cylinder 97, a second swing arm 98, a cylinder 99 and a connection plate 910, the installation cylinder 91 is fixedly connected to the upper surface of the bottom plate 1, the outer surface of the second pipe 10 is slidably inserted into the installation cylinder 91, the baffle 92 is fixedly connected to the inner wall of the installation cylinder 91 near the middle portion, the bottom of the second pipe 10 is in contact with the baffle 92, the support rod 93 is fixedly connected to the top of the baffle 92, the fixed cylinder 94 is symmetrically and fixedly connected to the support rod 93 near the top portion, the first swing arms 95 are hinged to the outer side of the fixed cylinder 94 at equal intervals through hinges, the arc-shaped clamp plates 96 are arranged at equal intervals on the inner side of the second pipe 10, the outer sides of the arc-shaped clamp plates 96 are in close contact with the inner wall of the second pipe 10, two first swing arms 95 are hinged to the same arc-shaped clamp plate 96 through hinges respectively, the supporting rod 93 is connected with a sliding barrel 97 near the bottom in a sliding manner, the outer side of the sliding barrel 97 is hinged with a second swing arm 98 at equal intervals through a hinge, the second swing arm 98 is hinged with an arc-shaped clamping plate 96 through a hinge, the upper surface of the bottom plate 1 is fixedly connected with an air cylinder 99, the output end of the air cylinder 99 is symmetrically and fixedly connected with connecting plates 910, the tops of the two connecting plates 910 slide to penetrate through a baffle 92 and be fixedly connected with the sliding barrel 97, when the clamping mechanism 9 is operated, a second pipe fitting 10 is firstly inserted into the mounting barrel 91, the connecting plates 910 drive the sliding barrel 97 to move upwards along the axial direction of the supporting rod 73 through the operation of the air cylinder 99, because the inner sides of the arc-shaped clamping plate 96 are movably mounted with the fixed barrel 94 through two first swing arms 95, the first swing arm 95 and the second swing arm 98 form a parallelogram, when the sliding barrel 97 moves upwards, the first swing arm 95 is driven to move upwards and drive the second swing arm 98 to rotate for a certain angle, thereby drive three arc splint 96 simultaneously and remove to the direction of keeping away from bracing piece 93, and then make three arc splint 96 outdiffusion and press from both sides tightly the inner wall of second pipe fitting 10, make it difficult emergence when high frequency brazing rotate.

Referring to fig. 6, a strip-shaped groove 11 is formed in the inner wall of the sliding cylinder 97, a strip-shaped key 12 is fixedly connected to the support rod 93 near the bottom, and the inner wall of the strip-shaped groove 11 is slidably inserted into the strip-shaped key 12, so that the sliding cylinder 97 is not easy to rotate when sliding along the support rod 93.

Referring to fig. 1, a control panel 13 is fixedly installed on one side of the upper surface of the bottom plate 1, and the conveyor belt 2, the mechanical arm 3, the first driving motor 64, the second driving motor 71, the high-frequency induction coil 8 and the cylinder 99 are all electrically connected to the control panel 13, so that the overall device can be controlled and adjusted uniformly, and the control panel 13 is an existing control circuit and is not described herein again.

Referring to fig. 2, the first driving motor 64 is a servo motor, which can rotate forward and backward with high precision.

Referring to fig. 3, the contact portion between the moving end of the mechanical arm 3 and the first pipe 4 is made of rubber, which not only plays an insulating role and does not affect the high-frequency brazing process, but also enhances the stability of the mechanical arm 3 for clamping the first pipe 4.

The working principle is as follows: the mechanical arm 3 clamps the pipe to be machined on the conveyor belt 2, so that a plurality of procedures of cutting, chamfering and welding are completed in an auxiliary mode, the mechanical arm 3 clamps the pipe to be machined after the pipe to be machined is subjected to cutting and chamfering, brazing flux is coated on the pipe, the mechanical arm 3 is an existing technology and is not repeated, a tool for cutting and chamfering can be moved linearly conveniently by operating the driving mechanism 6, and the horizontal position of the supporting plate 5 is adjusted according to the required cutting length of the first pipe 4; the cutting and chamfering mechanism 7 is operated to facilitate the cutting and chamfering of the first pipe fitting 4; after second pipe fitting 10 accomplished the process of cutting the chamfer, carry second pipe fitting 10 to fixture 9 back through arm 3, carry out the centre gripping to second pipe fitting 10 through fixture 9, arm 3 loosens behind second pipe fitting 10, first pipe fitting 4 of taking from conveyer belt 2, treat that first pipe fitting 4 also accomplishes the process of cutting the chamfer back, through arm 3 centre gripping first pipe fitting 4, align and in close contact with an terminal surface of first pipe fitting 4 and the terminal surface of second pipe fitting 10, through operation high frequency induction coil 8, carry out the high frequency brazing process, make first pipe fitting 4 accomplish the welding with second pipe fitting 10. When the driving mechanism 6 is operated, the screw 63 is rotated by operating the first driving motor 64, and since the moving plate 61 is limited by the two slide bars 65 to rotate, when the screw 63 rotates, the moving plate 61 can move linearly along the axial direction of the screw 63, and further the supporting plate 5 is driven to adjust the horizontal position; when the cutting chamfering mechanism 7 is operated, the second driving motor 71 is operated, so that the first rotating rod 73 drives the driving wheel 74 to rotate at a high speed, the driving wheel 74 and the driven wheel 75 are driven by a belt, the driven wheel 75 synchronously rotates along with the driving wheel 74, the second rotating rod 76 drives the cutting wheel 77 and the grinding wheel 78 to simultaneously rotate at a high speed, when the first pipe fitting 4 is cut, the supporting plate 5 is kept static, the mechanical arm 3 drives the first pipe fitting 4 to be calibrated, the surface of the first pipe fitting 4 to be cut is aligned with the end surface of the cutting wheel 77, the first pipe fitting 4 is positioned above the cutting wheel 77, when the cutting wheel 77 rotates at a high speed, the mechanical arm 3 drives the first pipe fitting 4 to vertically move downwards, so that the first pipe fitting 4 is cut, and then the first pipe fitting 4 is withdrawn; when the end face edge of the first pipe fitting 4 needs to be chamfered, the mechanical arm 3 rotates the first pipe fitting 4 to enable the edge of the end face of the first pipe fitting 4 to incline for a certain angle, then the first pipe fitting 4 keeps static, the end face of the grinding wheel 78 is enabled to be close to the first pipe fitting 4 while rotating at a high speed by operating the driving mechanism 6, and edge chamfering processing is carried out on the end face of the grinding wheel; when the clamping mechanism 9 is operated, the second pipe fitting 10 is firstly inserted into the mounting cylinder 91, and the air cylinder 99 is operated, so that the connecting plate 910 drives the sliding cylinder 97 to move upwards along the axial direction of the supporting rod 73, because the inner side of the arc-shaped clamping plate 96 is movably mounted with the fixed cylinder 94 through two first swing arms 95 respectively, the first swing arm 95 and the second swing arm 98 form a parallelogram, when the sliding cylinder 97 moves upwards, the first swing arm 95 is driven to move upwards and drive the second swing arm 98 to rotate by a certain angle, thereby simultaneously driving the three arc-shaped clamping plates 96 to move towards the direction far away from the supporting rod 93, further enabling the three arc-shaped clamping plates 96 to diffuse outwards and clamp the inner wall of the second pipe fitting 10, and enabling the rotation of the three arc-shaped clamping plates not to easily occur when the high-frequency brazing is carried out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vehicle air conditioner pipe fitting processing is with cutting chamfer welding all-in-one, includes bottom plate (1), conveyer belt (2) and arm (3), its characterized in that: the automatic pipe fitting cutting machine is characterized in that a conveying belt (2) is fixedly mounted on one side of the upper surface of the bottom plate (1), a mechanical arm (3) is fixedly mounted on the upper surface of the bottom plate (1) close to the middle of the upper surface of the bottom plate (1), a first pipe fitting (4) is clamped at the moving end of the mechanical arm (3), a supporting plate (5) is arranged above one side of the bottom plate (1), a driving mechanism (6) is fixedly connected to the bottom of the supporting plate (5), a cutting chamfering mechanism (7) is fixedly mounted at the top of the supporting plate (5), a high-frequency induction coil (8) is mounted on one side, far away from the supporting plate (5), of the upper surface of the bottom plate (1), a clamping mechanism (9) is arranged below the high-frequency induction coil (8), a second pipe fitting (10) is mounted at the top of the clamping mechanism (9), and the top of the second pipe fitting (10) is located in the middle of the high-frequency induction coil (8);

the driving mechanism (6) comprises a movable plate (61), side plates (62), a screw rod (63), a first driving motor (64) and a sliding rod (65), the bottom of the supporting plate (5) is fixedly connected with the movable plate (61), the middle part of the movable plate (61) is provided with a threaded hole, through holes are symmetrically formed in two sides of the movable plate (61), the upper surface of the bottom plate (1) is symmetrically and fixedly connected with the side plates (62), the middle parts of the inner sides of the two side plates (62) are rotatably connected with the screw rod (63) through bearings, the movable plate (61) is in threaded connection with the screw rod (63) through the threaded hole, the outer side of one side plate (62) far away from the second pipe fitting (10) is fixedly provided with the first driving motor (64), and one end, close to the first driving motor (64), of the screw rod (63) penetrates through the side plate (62) to be fixedly connected with the output end of the first driving motor (64), the inner sides of the two side plates (62) are symmetrically and fixedly connected with sliding rods (65), and two sides of the moving plate (61) are respectively in sliding connection with the two sliding rods (65) through holes;

the clamping mechanism (9) comprises an installation cylinder (91), a baffle (92), a support rod (93), a fixed cylinder (94), a first swing arm (95), an arc-shaped clamping plate (96), a sliding cylinder (97), a second swing arm (98), an air cylinder (99) and a connecting plate (910), wherein the upper surface of the bottom plate (1) is fixedly connected with the installation cylinder (91), the outer surface of the second pipe fitting (10) is in sliding insertion connection with the installation cylinder (91), the inner wall of the installation cylinder (91) is close to the middle fixedly connected with the baffle (92), the bottom of the second pipe fitting (10) is in contact with the baffle (92), the top of the baffle (92) is fixedly connected with the support rod (93), the support rod (93) is close to the top symmetrically and fixedly connected with the fixed cylinder (94), the outer side of the fixed cylinder (94) is hinged with the first swing arm (95) through a hinge at equal distance, the inner side of the second pipe fitting (10) is provided with the arc-shaped clamping plate (96) at equal distance, and arc splint (96) outside and second pipe fitting (10) inner wall in close contact with, matched with two first swing arm (95) is articulated with same arc splint (96) through the hinge respectively, bracing piece (93) are close to bottom sliding connection and have a slide cylinder (97), the slide cylinder (97) outside articulates through the hinge equidistance has second swing arm (98), and second swing arm (98) are articulated through hinge and arc splint (96), fixed surface is connected with cylinder (99) on bottom plate (1), cylinder (99) output symmetry fixedly connected with connecting plate (910), and two connecting plate (910) top slides and pass baffle (92) and slide cylinder (97) fixed connection.

2. The cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting as claimed in claim 1, wherein: the cutting chamfering mechanism (7) comprises a second driving motor (71), supporting seats (72), first rotating rods (73), a driving wheel (74), a driven wheel (75), second rotating rods (76), a cutting wheel (77) and a grinding wheel (78), wherein the second driving motor (71) is fixedly installed on one side of the top of the supporting plate (5), the supporting seats (72) are symmetrically and fixedly connected to the top of the supporting plate (5), the middle of each supporting seat (72) is rotatably connected with the corresponding first rotating rod (73) through a bearing, one end, close to the second driving motor (71), of each first rotating rod (73) is fixedly connected with the output end of the corresponding second driving motor (71), one ends, close to the first pipe fittings (4), of the two first rotating rods (73) respectively penetrate through the two supporting seats (72) and are fixedly connected with the driving wheel (74) and the driven wheel (75), and the driving wheel (74) is connected with the driven wheel (75) through a belt in a transmission manner, one side of the driven wheel (75) close to the first pipe fitting (4) is fixedly connected with a second rotating rod (76), one end of the second rotating rod (76) close to the first pipe fitting (4) is fixedly provided with a cutting wheel (77), and the middle of one side of the cutting wheel (77) close to the first pipe fitting (4) is fixedly provided with a grinding wheel (78).

3. The cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting as claimed in claim 1, wherein: a strip-shaped groove (11) is formed in the inner wall of the sliding barrel (97), the supporting rod (93) is close to the bottom fixedly connected with a strip-shaped key (12), and the inner wall of the strip-shaped groove (11) is in sliding insertion connection with the strip-shaped key (12).

4. The cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting as claimed in claim 3, wherein: the device is characterized in that a control panel (13) is fixedly mounted on one side of the upper surface of the bottom plate (1), and the conveyor belt (2), the mechanical arm (3), the first driving motor (64), the second driving motor (71), the high-frequency induction coil (8) and the air cylinder (99) are all electrically connected with the control panel (13).

5. The cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting as claimed in claim 4, wherein: the first drive motor (64) is a servo motor.

6. The cutting, chamfering and welding integrated machine for machining the automobile air conditioner pipe fitting as claimed in claim 4, wherein: the contact part of the moving end of the mechanical arm (3) and the first pipe fitting (4) is made of rubber materials.