Processing device and processing method for internal combustion engine

Abstract

The invention discloses a processing device and a processing method for an internal combustion engine, comprising a workbench, which is connected to a hanging plate through a left vertical plate and a right vertical plate, a large ring gear being rotatably provided on the left side wall of the right vertical plate, two arc-shaped clamping plates being connected to the left side of the large ring gear, a processing knife and a circular ring being provided above the workbench, an air bag ring being provided on the right side of the circular ring, a solder paste glue gun being connected below the hanging plate, the right vertical plate being connected to an insertion rod through a second upper and lower telescopic rod, a rotating motor, and first left and right telescopic rods, an electric soldering iron being provided at the left end of the insertion rod, a circular shaft hole being provided in the insertion rod and being communicated with the air bag ring, and a welding gun being rotatably connected to the left side of the circular ring; by providing a structure of the ring gear, the arc-shaped clamping plate, the processing knife, the circular ring, the air bag ring, the solder paste glue gun, the insertion rod, the electric soldering iron, and the circular shaft hole, solder paste is first applied to the intake pipe, which not only facilitates lubrication but also forms a welding surface between the air inlet and the inside of the intake pipe, thereby improving welding firmness and reducing the problem of intake pipe bending.

Description

Technical Field

[0001] The present invention belongs to the technical field of internal combustion engine welding, and in particular relates to a processing device and a processing method for an internal combustion engine. Background Art

[0002] An internal combustion engine is a heat engine that converts heat energy directly into power by burning fuel inside the engine. The main working principle of an internal combustion engine is to mix fuel and air and then burn them in the cylinder. The heat energy released generates high-temperature and high-pressure combustion gas in the cylinder. The expansion of the combustion gas pushes the piston to work, and then the mechanical work is output through the crank-connecting rod mechanism or other mechanisms to drive the driven machine to work.

[0003] During the processing and production of internal combustion engines, the intake pipe needs to be welded to the air intake port of the internal combustion engine cylinder block. Currently, during the welding process of the intake pipe of the internal combustion engine, the intake pipe is generally directly pushed into the air intake port of the internal combustion engine cylinder block, and the joint between the intake pipe and the internal combustion engine cylinder block is welded externally. This method of welding the intake pipe only on the outside can easily lead to insufficient welding firmness or sealing, affecting normal welding quality or causing air leakage. Summary of the Invention

[0004] In view of the deficiencies and defects in the prior art, the purpose of the present invention is to provide a processing device for an internal combustion engine, which solves the problem that the processing device for an internal combustion engine in the prior art only welds the intake pipe on the outside, resulting in insufficient welding firmness or sealing, affecting the normal welding quality or causing air leakage.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a processing device for an internal combustion engine, comprising a workbench, a positioning slot for placing the internal combustion engine is provided above the workbench, a left vertical plate is provided on the left side of the workbench, a right vertical plate is provided on the right side of the workbench, a hanging plate is fixed between the upper parts of the left and right vertical plates, and a clamping mechanism for clamping the internal combustion engine is provided below the hanging plate, a large ring gear is rotatably provided on the left side wall of the right vertical plate, and two arc-shaped clamping plates are connected on the left side of the large ring gear that can be telescopically extended left and right and up and down, a processing knife is connected above the workbench through a first upper and lower telescopic rod, the processing knife is used for cutting threads and chamfering on the intake pipe, and a support rod is connected on the left side of the processing knife on the workbench A circular ring is provided on the right side of the circular ring, and a solder paste gun is connected to the position corresponding to the processing knife through a hanging rod below the hanging plate. A rotating motor is connected to the large ring gear on the right vertical plate through the second upper and lower telescopic rods. The output shaft of the rotating motor is connected to an insertion rod that can be inserted into the air intake of the internal combustion engine through the first left and right telescopic rods. An electric soldering iron that can contact the inner wall of the intake pipe and the left end face of the intake pipe is provided at the left end of the insertion rod. A circular shaft hole is opened in the insertion rod, and the right end of the circular shaft hole of the insertion rod is connected to the air bag ring through a connecting pipe, and the left end of the circular shaft hole leads to the electric soldering iron. An insulation block is provided on the front side of the electric soldering iron, and a welding gun pointing to the edge of the air inlet is rotatably connected to the left side of the circular ring.

[0006] As a further improvement of the present invention, the right side of the large ring gear is rotatably connected to the right vertical plate, and the right vertical plate is also rotatably connected to a large gear, which is meshed with the large ring gear and connected to a second motor that drives it to rotate.

[0007] As a further improvement of the present invention, the cross-sectional shape of the electric soldering iron is an inverted L-shape, comprising a left block and a right block connected together, the right block is connected to the extension rod, the height difference between the bottom surfaces of the left block and the right block is greater than the wall thickness of the intake pipe, and the height of the left block is less than the diameter of the air intake port of the internal combustion engine.

[0008] As a further improvement of the present invention, an arc-shaped protrusion capable of being embedded in the chamfer of the air inlet pipe is provided on the edge of the right end surface of the right block of the electric soldering iron.

[0009] As a further improvement of the present invention, the large ring gear is provided with two second left and right telescopic rods, the second left and right telescopic rods are connected to third upper and lower telescopic rods, and two arc-shaped splints are respectively fixedly connected to the third upper and lower telescopic rods.

[0010] As a further improvement of the present invention, a small ring gear is rotatably provided on the circular ring, the welding gun is fixed on the small ring gear, the upper side of the small ring gear is meshed with a small gear, the small gear is rotatably connected to the fixed plate, the fixed plate is fixed on the hanging plate, and the small gear is connected to a third motor that drives it to rotate.

[0011] As a further improvement of the present invention, the clamping mechanism is an electric push rod, and the body of the electric push rod is fixed on the hanging plate.

[0012] A processing method using a processing device for an internal combustion engine comprises the following steps:

[0013] (1) Adjust the extension rod to the right to the limit position, put the intake pipe over the extension rod, and adjust the arc clamp to clamp the intake pipe, place the internal combustion engine in the positioning slot, and clamp it using the clamping mechanism; adjust the first left and right telescopic rods to extend the extension rod to the left through the air intake of the internal combustion engine into the internal combustion engine cylinder body, adjust the second upper and lower telescopic rods downward so that the bottom of the electric soldering iron exceeds the air intake, and adjust the first left and right telescopic rods to the right so that the lower end surface of the electric soldering iron is against the inner wall of the internal combustion engine cylinder body;

[0014] (2) While rotating the large ring gear, move the arc-shaped clamp to the left, so that the intake pipe rotates and moves to the left. When the left end of the intake pipe moves to the upper part of the processing knife, turn on the electric soldering iron, and at the same time, extend the processing knife upward and cut the outer wall of the end of the intake pipe to form a cutting thread. At the same time, apply solder paste to the cutting thread on the intake pipe with a solder paste gun. When the length of the cutting thread on the intake pipe is equal to the depth of the air inlet, retract the processing knife downward and leave the wall of the intake pipe.

[0015] (3) After turning on the electric soldering iron, the heat from the electric soldering iron is transferred to the air bag ring, making the air bag ring temperature higher. When the air inlet pipe passes through the air bag ring, the air bag ring heats the solder paste on the cut thread to improve the flowability of the solder paste and evenly spreads the solder paste;

[0016] (4) After the air intake pipe passes through the air bag ring, it continues to rotate and move to the left until the air intake pipe is inserted into the air inlet and contacts the electric soldering iron, and then the air intake pipe stops moving;

[0017] (5) Turn on the welding gun and rotate the welding gun and the soldering iron. The welding gun welds the joint between the intake pipe and the air intake port of the internal combustion engine from the outside, and the soldering iron heats the intake pipe from the inside, so that the solder paste between the intake pipe and the air intake port melts and welds. At the same time, the insulation block on the soldering iron smoothes the overflowed solder paste. After the welding is completed, turn off the welding gun and the soldering iron. The heat stored in the insulation block can keep the weld of the intake pipe warm to slow down the cooling and reduce cracks.

[0018] As a further improvement of the present invention, in step (2), before cutting the thread, the intake pipe is chamfered, and the horizontal projection length of the chamfered bevel is less than half of the depth of the intake port.

[0019] Before cutting the threads, the intake pipe is chamfered to facilitate the application of solder paste inside the chamfer. During welding, a weld is formed inside the intake pipe, forming a weld on the inside of the intake pipe. It is also convenient to collect heat and transfer it between the intake pipe and the inner wall of the air inlet, ensuring the welding quality.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. By setting up the structure of the ring gear, arc splint, processing knife, circular ring, air bag ring, solder paste glue gun, insertion rod, electric soldering iron, circular shaft hole, and air pipe, before the intake pipe is inserted into the air inlet, the intake pipe is rotated and moved to the left, and when the intake pipe is loaded to the left, the left end of the intake pipe can be chamfered and threaded, and solder paste can be applied on the chamfered and cut threads. The setting of the cut thread can accommodate more solder paste in the thread groove of the cut thread, so that a solder paste can be formed between the air inlet and the inside of the intake pipe. The first is to improve the welding firmness between the intake pipe and the air inlet; the second is the setting of the thread groove, which can form multiple seals in the longitudinal direction after welding to reduce leakage; the third is that cutting the thread groove can reduce the contact friction between the intake pipe and the air inlet, facilitate the insertion of the intake pipe, and reduce the more laborious problem of adding the intake pipe to the air inlet; in addition, adding solder paste to the intake pipe can form a welding point between the intake pipe and the air inlet while forming lubrication, which facilitates the insertion of the intake pipe into the air inlet and saves more effort.

[0022] In addition, the chamfer setting can not only be coated with solder paste inside the chamfer, but also form a weld inside the intake pipe during welding, forming a weld on the inside of the intake pipe, and conveniently collect heat and transfer it between the intake pipe and the inner wall of the air intake port. The setting of the insertion rod and the electric soldering iron allows the insertion rod to be inserted into the air intake port when welding the intake pipe to the air intake port of the internal combustion engine, and the electric soldering iron is attached to the inner wall of the inner shell of the internal combustion engine, so that the intake pipe can be limited and positioned later and the welding process can be completed. In addition, The setting of the electric soldering iron can generate heat when turned on, so that the heat can be conducted from the circular shaft hole to the air bag ring. The air bag ring becomes hot and expands, thereby heating and softening the solder paste, increasing fluidity, and facilitating uniform smoothing of the solder paste. After welding is completed, the heat stored in the gas in the air bag ring and the heat on the electric soldering iron are conducted to the insulation block. The insulation block can insulate the air intake pipe and slow down the cooling, reduce welding cold cracks, and improve welding quality. The air bag ring and the insulation block are used in coordination with each other to improve functional utilization.

[0023] When welding the intake pipe into the air intake port of the internal combustion engine, first extend the insertion rod into the air intake port, and stick the soldering iron to the inner wall of the internal combustion engine inner shell so that the intake pipe can be limited and positioned when it is inserted into the air intake port, and the welding process can be completed.

[0024] In short, when welding the intake pipe and the air inlet, the welding gun can realize the welding of the right side butt joint between the intake pipe and the air inlet, and the soldering iron can realize the welding of the left side butt joint between the intake pipe and the air inlet, as well as the welding within the contact surface between the intake pipe and the air inlet, thereby improving the welding firmness and sealing.

[0025] 2. By providing a large gear and a second motor, the second motor drives the large gear to rotate, and the rotation of the large gear drives the ring gear to rotate.

[0026] 3. By setting the electric soldering iron into an inverted L shape, the inner side of the intake pipe and the left end side of the intake pipe can be heated and welded.

[0027] 5. An arc-shaped protrusion that can be embedded in the chamfer of the air inlet pipe is provided on the right end edge of the right block of the electric soldering iron, so that the solder paste at the chamfer can be reinforced and the welding firmness can be improved.

[0028] By setting a second left and right telescopic rod and a third up and down telescopic rod on the ring gear, the left and right movement and up and down extension of the arc-shaped clamping block can be adjusted. By setting a small ring gear, a small gear, a fixed plate and a third motor, the third motor drives the small gear to rotate, and the small gear rotates and drives the small ring gear to rotate, and the rotation of the small ring gear drives the welding gun to rotate. 8. By using a processing method for a processing device for an internal combustion engine, the intake pipe is first chamfered and threaded, and solder paste is applied to the chamfers and threaded areas. After applying the solder paste, the solder paste is heated and applied. After that, a welding gun is used to weld the right side interface of the intake pipe and the air inlet, and an electric soldering iron is used to weld the left end interface of the intake pipe and the air inlet, and the contact surface of the intake pipe and the air inlet is heated and welded, thereby achieving comprehensive welding of the intake pipe simultaneously, improving the welding firmness while improving the welding sealing of the intake pipe and reducing the number of operating steps.

[0029] In addition, when soldering, the electric soldering iron can reasonably utilize the heat generated by the electric soldering iron to provide heat to the air bag ring. The air bag ring heats the solder paste, which facilitates the softening of the solder paste and improves fluidity. In addition, the air bag ring preheats the welding point of the intake pipe to improve the subsequent welding quality. After welding is completed, the heat stored in the air bag ring is also transferred to the electric soldering iron and the insulation block, thereby slowly cooling the welding point and improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic cross-sectional view of the present invention;

[0033] Figure 3 for Figure 1 Enlarged view at point A;

[0034] Figure 4 for Figure 2 Enlarged view at point B;

[0035] Figure 5 for Figure 2 Enlarged view at point C;

[0036] Figure 6 It is a structural diagram of the electric soldering iron;

[0037] Figure 7 It is a structural diagram of the large ring gear;

[0038] In the figure: 1. workbench; 2. positioning slot; 3. left vertical plate; 4. right vertical plate; 5. hanging plate; 6. clamping mechanism; 7. large ring gear; 8. arc-shaped clamping plate; 9. first vertical telescopic rod; 10. processing knife; 11. support rod; 12. circular ring; 13. air bag ring; 14. hanging rod; 15. solder paste glue gun; 16. second vertical telescopic rod; 17. rotating motor; 18. first left and right telescopic rods; 19. insertion rod; 20. electric soldering iron; 201. left block; 202. right block; 22. insulation block; 23. welding gun; 24. large gear; 25. arc-shaped protrusion; 26. second left and right telescopic rods; 27. third vertical telescopic rod; 28. small ring gear; 29. ​​small gear; 30. fixing plate; 31. internal combustion engine; 32. intake pipe; 33. third motor; 34. connecting pipe. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 The present invention will be described in further detail. For a clearer illustration, only the structures related to the invention of the present invention are shown in the figures.

[0040] For the convenience of description, the coordinate system is defined as follows Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0041] The embodiment of the present invention discloses a processing device for an internal combustion engine. Figure 1 、 Figure 2 and Figure 7 A processing device for an internal combustion engine includes a workbench 1, a positioning slot 2 for placing an internal combustion engine 31 is provided above the workbench 1, a left vertical plate 3 is fixed to the left side of the workbench 1, a right vertical plate 4 is fixed to the right side of the workbench 1, a hanging plate 5 is fixed between the upper parts of the left vertical plate 3 and the right vertical plate 4, and a clamping mechanism 6 for clamping the internal combustion engine 31 is fixed below the hanging plate 5. The clamping mechanism 6 is an electric push rod, and the body of the electric push rod is fixed to the hanging plate 5. Figure 2 and Figure 5As shown, a large ring gear 7 is rotatably provided on the left side wall of the right vertical plate 4, and the right side of the large ring gear 7 is rotatably connected to the right vertical plate 4. A large gear 24 is also rotatably connected to the right vertical plate 4, and the large gear 24 is meshed with the large ring gear 7. The large gear 24 is connected to the second motor that drives it to rotate; the second motor drives the large gear 24 to rotate, and the rotation of the large gear 24 thereby drives the ring gear to rotate.

[0042] like Figure 2 As shown, an arcuate clamping plate 8 is connected to the upper and lower sides of the left side of the large ring gear 7, which can be telescopically extended left and right and up and down. Specifically, two second telescopic rods 26 are fixed to the large ring gear 7, one above and one below. Each second telescopic rod 26 is connected to a third telescopic rod 27, and the two arcuate clamping plates 8 are respectively fixed to the bottom of the third telescopic rods 27. By providing the second telescopic rods 26 and the third telescopic rods 27 on the ring gear, the left and right movement and the vertical extension and contraction of the arcuate clamping block can be adjusted.

[0043] like Figure 4 As shown, a processing knife 10 is connected above the workbench 1 through a first upper and lower telescopic rod 9. The processing knife 10 is used to cut threads and chamfer the air intake pipe 32. The cross-sectional shape of the processing knife 10 is a sharp angle with a bevel. The inclination of the bevel of the processing knife 10 matches the inclination of the chamfer. By adjusting the height of the processing knife 10, the air intake pipe 32 can be rotated to form a chamfer.

[0044] like Figure 1 、 Figure 3 and Figure 4 As shown, a circular ring 12 is fixedly connected to the left side of the processing knife 10 on the workbench 1 through a support rod 11, and an air bag ring 13 is fixedly connected to the right side of the circular ring 12. The air bag ring 13 is annular and filled with gas. A solder paste glue gun 15 is connected to the position corresponding to the processing knife 10 below the hanging plate 5 through a hanging rod 14. The solder paste glue gun 15 can dispense solder paste, and flux and adhesive can be mixed into the solder paste. A rotating motor 17 is connected to the large ring gear 7 on the right vertical plate 4 through a second upper and lower telescopic rod 16. The rotating motor 17 is fixed to the right vertical plate 4.

[0045] like Figure 4As shown, the output shaft of the rotating motor 17 is connected to an insertion rod 19 capable of extending into the air intake of the internal combustion engine 31 via first left and right telescopic rods 18. A soldering iron 20 is secured to the left end of the insertion rod 19, capable of contacting the inner wall and left end surface of the intake pipe 32. The soldering iron 20 can be a conventional electric soldering iron, which heats when powered. The soldering iron's structure and principle are similar to those of conventional soldering irons. The soldering iron 20 has a customizable head shape and an inverted L-shaped cross-section. The soldering iron 20 comprises a left block 201 and a right block 202, which are connected to the insertion rod 19. The height difference between the bottom surfaces of the left block 201 and the right block 202 is greater than the wall thickness of the intake pipe 32, and the height of the left block 201 is less than the diameter of the air intake of the internal combustion engine 31. This allows for heat welding of the inner side and left end of the intake pipe 32.

[0046] The insertion rod 19 is provided with a circular shaft hole (not shown in the drawings). The right end of the circular shaft hole of the insertion rod 19 is connected to the air bag ring 13 through the air pipe 34, and the left end of the circular shaft hole leads to the electric soldering iron 20. Figure 4 As shown, a heat preservation block 22 is provided on the front side of the electric soldering iron 20. The heat preservation block 22 is made of a heat preservation material with slow heat dissipation, such as aluminum alloy. Figure 1 and Figure 3 As shown, the left side of the ring 12 is rotatably connected to a welding gun 23 pointing to the edge of the air inlet.

[0047] In addition, if Figure 6 As shown, an arc-shaped protrusion 25 is provided on the right end edge of the right side block 202 of the electric soldering iron 20, which can be embedded in the chamfer of the air inlet pipe 32; thereby, the solder paste at the chamfer can be reinforced to improve the welding firmness.

[0048] In addition, if Figure 4 As shown, a small ring gear 28 is rotatably provided on the ring 12, and the welding gun 23 is fixed to the small ring gear 28. The upper side of the small ring gear 28 is meshed with a small gear 29. The small gear 29 is rotatably connected to a fixed plate 30, and the fixed plate 30 is fixed to the hanging plate 5. The small gear 29 is connected to a third motor 33 that drives it to rotate. The third motor 33 drives the small gear 29 to rotate, and the rotation of the small gear 29 drives the small ring gear 28 to rotate. The rotation of the small ring gear 28 thereby drives the welding gun 23 to rotate. The first vertical telescopic rod 9, the second vertical telescopic rod 16, the third vertical telescopic rod 27, the first left and right telescopic rod 18, and the second left and right telescopic rod 26 can adopt the structure of an electric push rod, a hydraulic push rod, or a pneumatic push rod.

[0049] By setting the structure of the ring gear, arc-shaped clamping plate 8, processing knife 10, circular ring 12, air bag ring 13, solder paste glue gun 15, insertion rod 19, electric soldering iron 20, circular shaft hole, and air pipe, before the air intake pipe 32 is inserted into the air inlet, the air intake pipe 32 is rotated and moved to the left, and when the air intake pipe 32 is loaded to the left, the left end of the air intake pipe 32 can be chamfered and threaded, and solder paste can be applied to the chamfered and cut threads. The setting of the cut thread can accommodate more solder paste in the thread groove of the cut thread, so that there is a gap between the air inlet and the inside of the air intake pipe 32. A welding surface can be formed to improve the welding firmness between the intake pipe 32 and the air inlet. Secondly, the setting of the thread groove can form multiple seals in the longitudinal direction after welding to reduce leakage. Thirdly, cutting the thread groove can reduce the contact friction between the intake pipe 32 and the air inlet, facilitate the insertion of the intake pipe 32, and reduce the more laborious problem of the intake pipe 32 when adding the air inlet. In addition, adding solder paste to the intake pipe 32 can form a welding point between the intake pipe 32 and the air inlet, and can form lubrication at the same time, which facilitates the insertion of the intake pipe 32 and saves more effort.

[0050] In addition, the chamfer is set, not only can solder paste be applied inside the chamfer, but also a weld is formed inside the intake pipe 32 during welding, forming a weld on the inner side of the intake pipe 32, and it is convenient to collect the heat of the electric iron and transfer it to the space between the intake pipe 32 and the inner wall of the air inlet, so that the solder paste between the intake pipe 32 and the inner wall of the air inlet can be melted and welded. The setting of the insertion rod 19 and the electric soldering iron 20, when the intake pipe 32 is processed and welded in the air inlet of the internal combustion engine 31, the insertion rod 19 is first inserted into the air inlet, and the electric soldering iron 20 is attached to the inner wall of the inner shell of the internal combustion engine 31, so that the intake pipe 32 can be limited and positioned later. In addition, the setting of the electric soldering iron 20 can generate heat when it is turned on, so that the heat can be conducted from the circular shaft hole to the air bag ring 13. The air bag ring 13 becomes hot and expands, thereby heating and softening the solder paste, increasing fluidity, and facilitating the uniform smoothing of the solder paste. After welding is completed, the heat stored in the gas in the air bag ring 13 and the heat on the electric soldering iron 20 are conducted to the heat preservation block 22. The heat preservation block 22 can insulate and slowly cool the air inlet pipe 32, reduce welding cold cracks, and improve welding quality. The air bag ring 13 and the electric heating block utilize each other to improve functional utilization.

[0051] When the intake pipe 32 is processed and welded into the air intake port of the internal combustion engine 31, the insertion rod 19 is first inserted into the air intake port, and the electric soldering iron 20 is attached to the inner wall of the inner shell of the internal combustion engine 31 so that the intake pipe 32 can be limited and positioned when it is inserted into the air intake port, and the welding process can be completed.

[0052] In short, when welding the air intake pipe 32 and the air intake port, the welding gun 23 can realize the welding of the right side joint between the air intake pipe 32 and the air intake port, and the electric soldering iron 20 can realize the welding of the left side joint between the air intake pipe 32 and the air intake port and the welding within the contact surface between the air intake pipe 32 and the air intake port, thereby improving the welding firmness and sealing.

[0053] A processing method using a processing device for an internal combustion engine comprises the following steps:

[0054] (1) Adjust the insertion rod 19 to the right to the limit position, put the air intake pipe 32 over the insertion rod 19, and adjust the arc clamping plate 8 to clamp the air intake pipe 32, place the internal combustion engine 31 in the positioning slot 2, and clamp it using the clamping mechanism 6; adjust the first left and right telescopic rods 18 to extend the insertion rod 19 to the left through the air intake of the internal combustion engine 31 into the housing of the internal combustion engine 31, adjust the second upper and lower telescopic rods 16 downward so that the bottom of the electric soldering iron 20 exceeds the air intake, and adjust the first left and right telescopic rods 18 to the right so that the lower end surface of the electric soldering iron 20 abuts against the inner wall of the housing of the internal combustion engine 31;

[0055] (2) While rotating the large ring gear 7, move the arc-shaped clamping plate 8 to the left, so that the air intake pipe 32 rotates and moves to the left. When the left end of the air intake pipe 32 moves to the upper part of the processing knife 10, turn on the electric soldering iron 20, and at the same time, the processing knife 10 extends upward and cuts the outer wall of the end of the air intake pipe 32 to form a cutting thread. At the same time, the solder paste gun 15 applies solder paste to the cutting thread on the air intake pipe 32. When the length of the cutting thread on the air intake pipe 32 is equal to the depth of the air inlet, the processing knife 10 retracts downward and leaves the wall of the air intake pipe 32;

[0056] (3) After the electric soldering iron 20 is turned on, the heat from the electric soldering iron 20 is transferred to the air bag ring 13, causing the temperature of the air bag ring 13 to increase. When the air inlet pipe 32 passes through the air bag ring 13, the air bag ring 13 heats the solder paste on the cut thread to improve the flowability of the solder paste and evenly spreads the solder paste;

[0057] (4) After the air inlet pipe 32 passes through the air bag ring 13, it continues to rotate and move to the left until the air inlet pipe 32 is inserted into the air inlet and contacts the electric soldering iron 20, and then the air inlet pipe 32 stops moving;

[0058] (5) Turn on the welding gun 23 and rotate the welding gun 23 and the electric soldering iron 20. The welding gun 23 welds the joint between the intake pipe 32 and the air intake port of the internal combustion engine 31 from the outside. The electric soldering iron 20 heats the intake pipe 32 from the inside so that the solder paste between the intake pipe 32 and the air intake port melts and welds. At the same time, the heat preservation block 22 on the electric soldering iron 20 smoothes the overflowed solder paste. After the welding is completed, turn off the welding gun 23 and the electric soldering iron 20. The heat stored in the heat preservation block 22 can keep the weld of the intake pipe 32 warm to slow down the cooling and reduce cracks.

[0059] By using a processing method of a processing device for an internal combustion engine 31, the intake pipe 32 is first processed and threaded, and solder paste is applied to the cut threads. After applying the solder paste, the solder paste is heated and applied. Then, a welding gun 23 is used to weld the intake pipe 32 and the right side interface of the air inlet. At the same time, an electric soldering iron 20 is used to weld the intake pipe 32 and the left end interface of the air inlet, and the contact surface of the intake pipe 32 and the air inlet is heated and welded, thereby achieving comprehensive welding of the intake pipe 32 simultaneously, improving the welding firmness, improving the welding sealing of the intake pipe 32, and reducing the number of operating steps.

[0060] Furthermore, during soldering, the soldering iron 20 can utilize the heat generated by the soldering iron 20 to provide heat to the airbag ring 13. The airbag ring 13 heats the solder paste, softening it and improving its fluidity. Furthermore, the airbag ring 13 preheats the weld of the air inlet pipe 32, improving subsequent welding quality. After welding, the heat stored in the airbag ring 13 is transferred to the soldering iron 20 and the insulation block 22, thereby slowly cooling the weld and improving welding quality. Furthermore, before threading, the air inlet pipe 32 is chamfered to facilitate the application of solder paste within the chamfer. During welding, a weld seam is formed inside the air inlet pipe 32, creating a weld on the inside of the air inlet pipe 32. This facilitates the collection and transfer of heat between the air inlet pipe 32 and the inner wall of the air inlet, ensuring welding quality.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

Claims

1. A processing device for an internal combustion engine, comprising a workbench, characterized in that: A positioning slot for placing an internal combustion engine is provided above the workbench, a left vertical plate is provided on the left side of the workbench, a right vertical plate is provided on the right side of the workbench, a hanging plate is fixed between the upper parts of the left and right vertical plates, a clamping mechanism for clamping the internal combustion engine is provided below the hanging plate, a large ring gear is rotatably provided on the left side wall of the right vertical plate, the left side of the large ring gear can be telescopically connected to two arc-shaped clamping plates that can be telescopically extended left and right and up and down, a processing knife is connected to the top of the workbench through the first upper and lower telescopic rods, the processing knife is used for cutting threads and chamfering on the intake pipe, a circular ring is connected to the left side of the processing knife on the workbench through a support rod, an air bag ring is provided on the right side of the circular ring, and an air bag ring is provided below the hanging plate. A solder paste gun is connected through a suspension rod at a position corresponding to the processing knife, and a rotating motor is connected to the large ring gear on the right vertical plate through a second upper and lower telescopic rod. The output shaft of the rotating motor is connected to an insertion rod that can be inserted into the air intake of the internal combustion engine through a first left and right telescopic rod. An electric soldering iron that can contact the inner wall of the intake pipe and the left end face of the intake pipe is provided at the left end of the insertion rod. A circular shaft hole is provided in the insertion rod, and the right end of the circular shaft hole of the insertion rod is connected to the air bag ring through an air connecting pipe, and the left end of the circular shaft hole leads to the electric soldering iron. A heat preservation block is provided on the front side of the electric soldering iron, and a welding gun pointing to the edge of the air intake is rotatably connected to the left side of the circular ring.

2. A processing device for an internal combustion engine according to claim 1, characterized in that: The right side of the large ring gear is rotatably connected to the right vertical plate, and the right vertical plate is also rotatably connected to a large gear, which is meshed with the large ring gear and connected to a second motor that drives it to rotate.

3. A processing device for an internal combustion engine according to claim 1, characterized in that: The cross-section of the electric soldering iron is an inverted L-shape, comprising a left block and a right block connected together, the right block being connected to the extension rod, the height difference between the bottom surfaces of the left block and the right block being greater than the wall thickness of the intake pipe, and the height of the left block being less than the diameter of the air intake port of the internal combustion engine.

4. A processing device for an internal combustion engine according to claim 1, characterized in that: An arc-shaped protrusion capable of being embedded in the chamfer of the air inlet pipe is provided on the edge of the right end surface of the right block of the electric soldering iron.

5. The processing device for an internal combustion engine according to claim 1, characterized in that: The large ring gear is provided with two second left and right telescopic rods, the second left and right telescopic rods are connected to the third upper and lower telescopic rods, and the two arc-shaped clamping plates are respectively fixedly connected to the third upper and lower telescopic rods.

6. A processing device for an internal combustion engine according to claim 1, characterized in that: A small ring gear is rotatably provided on the circular ring, the welding gun is fixed on the small ring gear, the upper side of the small ring gear is meshed with a small gear, the small gear is rotatably connected to the fixed plate, the fixed plate is fixed on the hanging plate, and the small gear is connected to the third motor that drives it to rotate.

7. A processing device for an internal combustion engine according to claim 1, characterized in that: The clamping mechanism is an electric push rod, and the body of the electric push rod is fixed on the hanging plate.

8. A processing method using the processing device for an internal combustion engine according to claim 1, characterized in that: The steps include: (1) Adjust the extension rod to the right to the limit position, put the intake pipe over the extension rod, and adjust the arc clamp to clamp the intake pipe, place the internal combustion engine in the positioning slot, and clamp it using the clamping mechanism; adjust the first left and right telescopic rods to extend the extension rod to the left through the air intake of the internal combustion engine into the internal combustion engine cylinder body, adjust the second upper and lower telescopic rods downward so that the bottom of the electric soldering iron exceeds the air intake, and adjust the first left and right telescopic rods to the right so that the lower end surface of the electric soldering iron is against the inner wall of the internal combustion engine cylinder body; (2) While rotating the large ring gear, move the arc-shaped clamp to the left, so that the intake pipe rotates and moves to the left. When the left end of the intake pipe moves to the upper part of the processing knife, turn on the electric soldering iron, and at the same time, extend the processing knife upward and cut the outer wall of the end of the intake pipe to form a cutting thread. At the same time, apply solder paste to the cutting thread on the intake pipe with a solder paste gun. When the length of the cutting thread on the intake pipe is equal to the depth of the air inlet, retract the processing knife downward and leave the wall of the intake pipe. (3) After turning on the electric soldering iron, the heat from the electric soldering iron is transferred to the air bag ring, making the air bag ring temperature higher. When the air inlet pipe passes through the air bag ring, the air bag ring heats the solder paste on the cut thread to improve the flowability of the solder paste and evenly spreads the solder paste; (4) After the air intake pipe passes through the air bag ring, it continues to rotate and move to the left until the air intake pipe is inserted into the air inlet and contacts the electric soldering iron, and then the air intake pipe stops moving; (5) Turn on the welding gun and rotate the welding gun and the soldering iron. The welding gun welds the joint between the intake pipe and the air intake port of the internal combustion engine from the outside, and the soldering iron heats the intake pipe from the inside, so that the solder paste between the intake pipe and the air intake port melts and welds. At the same time, the insulation block on the soldering iron smoothes the overflowed solder paste. After the welding is completed, turn off the welding gun and the soldering iron. The heat stored in the insulation block can keep the weld of the intake pipe warm to slow down the cooling and reduce cracks.

9. The processing method using a processing device for an internal combustion engine according to claim 8, characterized in that: In step (2), before thread cutting, the intake pipe is chamfered, and the horizontal projection length of the chamfered edge is less than half of the depth of the intake port.

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