Foldable induction quenching method

Abstract

The invention discloses a foldable induction quenching method. The method comprises the following steps: 1, selecting the size of an inductor; the second step of starting the fixing process, including the following two or combinations: in the first step, a bendable pipe in an inductor of a cylindrical part is in an unfolded state, then an arc coil and a Haff clamp are assembled, and then the part is fixed; according to the second type, the bendable pipe in the inductor of the semi-cylinder part is in a folded state, then the arc coil and the Haff clamp are assembled, and then the part is fixed; 3, splicing the inductor; fourthly, alternating current is led into the arc coil, then the alternating current enables the part to be machined to generate induction current to be heated, and the heating stage in induction quenching can be completed; the bendable pipe is changed into the unfolded state or the folded state, so that the arc coil can be matched with the outer surface of the to-be-machined part, and the adaptability is wide; the shape of the bendable pipe can be adjusted, so that the adjustability is better. Therefore, the design is wide in adaptability and good in adjustability.

Description

Technical Field

[0001] The invention relates to a quenching method, belonging to the field of induction quenching of cylindrical and semi-cylindrical parts, and in particular to a foldable induction quenching method. Background Art

[0002] Induction hardening is a new type of metal parts strengthening treatment technology, which uses electromagnetic induction to generate eddy currents in metal parts to heat the parts, and then quickly cools the metal parts to form a high-hardness steel layer on the surface of the metal parts. Induction hardening has the advantages of fast heating speed, fast quenching speed, precise control, and a wide range of applications. It is widely used in the heat treatment of metal parts in the fields of automobiles, machinery manufacturing, aviation, etc.

[0003] A Chinese patent application with application number 202311522653.1 and application date November 15, 2023 discloses a shaft induction quenching device and a foldable induction quenching method thereof, wherein the shaft induction quenching device comprises a connected bus, a busbar and an induction head, a magnetic conductor is provided on the induction head, and a spray cooling component is provided under the induction head. A foldable induction quenching method of the shaft induction quenching device is also provided, comprising: plugging the orifice of the quenching surface of the part with a plug, and mounting the shaft part on the equipment workbench; placing the small and medium outer circle ends of the part on the top and the large outer circle ends on the bottom; installing a quenching device for quenching small and medium outer circles to achieve induction quenching of small and medium outer circles; removing the shaft induction quenching device for quenching small and medium outer circles, placing the large outer circle ends on the top and the small and medium outer circle ends on the bottom; installing a quenching device for quenching large outer circles to achieve induction quenching of large outer circles. Although the design can perform induction quenching of parts through sensors, it still has the following defects: The coil of the inductor of this design is circular, and the entire coil can perform induction hardening on cylindrical parts; however, when performing induction hardening on semi-cylindrical parts, half of the coil performs induction hardening on the semi-cylindrical parts, and the other half of the coil does not play a role. Therefore, the coil is not well adapted to the semi-cylindrical parts, so there is a problem of narrow adaptability in the prior art.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects and problems of narrow adaptability in the prior art and to provide a foldable induction hardening method with wider adaptability.

[0006] To achieve the above objectives, the technical solution of the present invention is: A foldable induction hardening method, the method comprising the following steps: The first step: first take out the part to be processed, which includes a cylindrical part or a semi-cylindrical part, and then measure the diameter of the part to be processed; then select the arc coil of the left device and the right device of the sensor so that the inner diameter of the arc coil is larger than the diameter of the part to be processed; Step 2: Start the fixing process, which includes any one or any combination of the following: The first method: if the part to be processed is a cylindrical part, the bendable tube on the top of the arc coil is in an unfolded state, that is, the left connecting part, the bending part and the right connecting part of the bendable tube are in the same vertical plane or horizontal plane. At this time, the bendable tube and the arc coils on both sides are also in the same vertical plane or horizontal plane; then select the corresponding half clamp, and then insert the vertical tube at the bottom of the arc coil into the groove of the corresponding half clamp in turn, and then fix the cylindrical part inside the arc coil to keep the arc coil and the cylindrical part separated; The second method: if the part to be processed is a semi-cylindrical part, the bendable tube on the top of the arc coil is folded, that is, the left connecting part of the bendable tube is parallel to the right connecting part, and the bending part is in a bent state. At this time, the arc coils are parallel to each other; then select the corresponding half clamp, and then insert the vertical tube at the bottom of the arc coil into the groove of the corresponding half clamp in turn, and then fix the semi-cylindrical part inside the arc coil, so that the arc surface of the semi-cylindrical part faces the arc coil, and keep the arc coil and the semi-cylindrical part separated; Step 3: First align the fixing hole on the half clamp with the screw hole on the busbar, and then screw the screws into the fixing hole and the screw hole in turn. At this time, the two sides of the half clamp are clamped toward the vertical pipe to fix the vertical pipe, and the fixation of the half clamp and the busbar is completed. Then, the insulating sheet is clamped between the two busbars; Step 4: First connect the connecting plate at the bottom of the busbar to the induction device, and then make the induction device pass alternating current into the connecting plate. The alternating current then flows to the busbar, the half clamp, and the vertical pipe in sequence. Then the alternating current reaches the arc coil, and an alternating magnetic field is generated in the arc coil. Then the alternating magnetic field generates an induced current on the surface of the part to be processed. The induced current generates heat to heat the surface of the part to be processed, thereby completing the heating stage in induction quenching.

[0007] In the third step, the insulating sheet is clamped between the two busbars by first clamping the insulating sheet between the two busbars and then wrapping the two busbars with insulating cloth.

[0008] In the third step, clamping the insulating sheet between the two busbars is clamping a mica sheet between the two busbars, and wrapping the two busbars with insulating cloth is wrapping the two busbars with yellow wax cloth.

[0009] In the fourth step, the connecting plate connected to the bottom of the busbar is connected to the induction device by first connecting the connecting plate connected to the bottom of the busbar to the induction device, and then connecting the water inlet pipe connected to the vertical pipe to the water inlet device, and then allowing the water inlet device to pass water into the water inlet pipe, and the water then flows into the arc coil, and then the water is sprayed out from the multiple water spray holes of the arc coil, and the water then falls to the surface of the part to be processed to complete the cooling stage in induction quenching.

[0010] In the fourth step, the water flows into the circular arc coil again, flows toward the water spraying part of the circular arc coil, flows toward the inclined surface of the water spraying part, and then sprays out from the water spraying holes on the inclined surface.

[0011] In the fourth step, the inclined surface where the water flows toward the water spraying part again is the inclined surface where the water flows toward both sides of the water spraying part again, and the inclined surfaces are symmetrically distributed along the center of the water spraying part.

[0012] In the fourth step, the inclined surfaces on both sides of the water spray part are inclined surfaces with an angle of forty-five degrees with the vertical plane, and the water flow sprayed from the water spray holes on the inclined surfaces is water flow sprayed from the water spray holes on the inclined surfaces at an angle of forty-five degrees.

[0013] In the third step, screwing the screws into the fixing holes and the screw holes in sequence means screwing the screws into the fixing holes on the left fixing plate and the screw holes on the busbar in sequence, and then screwing the screws into the fixing holes on the right fixing plate and the screw holes on the busbar in sequence.

[0014] In the third step, screwing the screws into the fixing holes on the left fixing plate and the screw holes on the busbar in sequence means screwing the screws into the two fixing holes on the left fixing plate and the two screw holes on the busbar in sequence, and screwing the screws into the fixing holes on the right fixing plate and the screw holes on the busbar in sequence means screwing the screws into the two fixing holes on the right fixing plate and the two screw holes on the busbar in sequence.

[0015] In the fourth step, the connecting plate connected to the bottom of the busbar and the sensing device is connected to the three connecting holes at the bottom of the busbar and the connectors of the sensing device.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a foldable induction hardening method of the present invention, the method comprises the following steps: the first step: firstly selecting an arc coil of an inductor of suitable size according to the part to be processed; the second step: starting the fixing process, the fixing process comprises any one or any combination of the following: the first step: if the part to be processed is a cylindrical part, the bendable tube at the top of the arc coil is in an unfolded state, that is, the arc coil and the bendable tube are in a vertical plane or a horizontal plane, and then the vertical tube at the bottom of the arc coil is fixed with a half clamp, and then the cylindrical part is fixed inside the arc coil; the second step: if the part to be processed is a semi-cylindrical part, The first step is to fix the semi-cylindrical part inside the arc coil; the second step is to fix the half clamp to the busbar; the third step is to connect the connecting plate at the bottom of the busbar to the induction device to pass current through the arc coil, and then generate a magnetic field by the current, and then the magnetic field generates an induced current on the surface of the part to be processed, and the induced current heats the surface of the part to be processed to complete the heating stage in the induction quenching. The advantages of the present invention also include: First point: When the bendable tube is in the unfolded state, the arc coil is circular, so it can match the surface of the cylindrical part; when the bendable tube is in the folded state, the arc coil is semicircular, so it can match the surface of the semi-cylindrical part; the arc coil can perfectly adapt to the shape of the outer surface of the part, and the arc coil as a whole can heat the part in the induction quenching stage, so it has a wide adaptability; Second point: By adjusting the bendable tube to an unfolded state or a folded state, it can be adapted to cylindrical parts or semi-cylindrical parts, so the adjustability is better; Third point: The arc coil and the vertical pipe are connected to the busbar through the half clamp. When the arc coil is damaged, the arc coil and the vertical pipe can be removed from the half clamp and replaced with a new arc coil without repairing the entire inductor or cleaning the weld, so it is easy to repair; Fourth point: The busbars are separated by mica sheets and the outside of the busbars are wrapped with yellow wax cloth, which can prevent accidents such as short circuits and leakage, so the safety is relatively high.

[0017] Therefore, the present invention has high utilization rate and is easy to use.

[0018] 2. In a foldable induction hardening method of the present invention, in the fourth step, water inlet pipes are provided on both sides of the vertical pipe, and water is introduced into the vertical pipe and the circular arc coil through the water inlet pipe, and the water is then sprayed out from multiple water spray holes on the circular arc coil. When the water falls to the outer surface of the part to be processed, it absorbs the heat of the outer surface of the part to be processed, so that the surface of the part to be processed is cooled, so the cooling stage in the induction hardening can be completed; in the aforementioned process, the circular arc coil moves back and forth along the length direction of the part to be processed, so the heating stage of the induction hardening can be completed while the cooling stage of the induction hardening can be completed, and the parts that have passed the heating stage do not need to be transferred and placed in the cooling pool, thereby improving the cooling efficiency. Therefore, the cooling efficiency of the present invention is relatively high.

[0019] 3. In the foldable induction hardening method of the present invention, in the third step, screwing the screws into the fixing holes is screwing the screws into the multiple fixing holes on the left fixing plate and the right fixing plate in sequence, and the left fixing plate and the right fixing plate clamp the vertical tube from both sides of the vertical tube, so the fixing effect of the vertical tube is better; in the fourth step, the connection holes on the busbar cooperate with the connectors of the induction equipment, so a stable conductive effect can be achieved. Therefore, the fixing effect of the present invention is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a flow chart of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the present invention.

[0022] Figure 3 yes Figure 2 Schematic diagram of the structure of the bendable tube.

[0023] Figure 4 yes Figure 3 Front view of .

[0024] Figure 5 yes Figure 2 Schematic diagram of the structure of the device in the middle right.

[0025] Figure 6 yes Figure 5 Schematic diagram of the structure of the device in the middle left.

[0026] Figure 7 yes Figure 6 main view.

[0027] Figure 8 yes Figure 2 Schematic diagram of the structure of the medium arc coil.

[0028] Fig. 9 yes Figure 8 Right view of .

[0029] Fig.10 yes Fig. 9 Schematic diagram of the structure of the middle water spray hole.

[0030] Fig.11 yes Figure 2 Schematic diagram of the structure of the middle manifold.

[0031] Fig.12 yes Fig.11 Right view of .

[0032] Fig.13 yes Figure 2 Schematic diagram of the structure of the middle half clamp.

[0033] Fig.14 yes Fig.13 Right view of .

[0034] Fig.15 yes Fig.14 Schematic diagram of the structure of the middle right fixing plate.

[0035] Fig.16 yes Figure 1 Schematic diagram of the structure of the middle pipe joint.

[0036] In the figure: left device 1, right device 2, arc coil 21, water spray hole 212, convergence plate 22, inner diameter 23, screw hole 221, right angle part 222, water spray part 223, inclined surface 224, connecting surface 225, vertical pipe 23, connecting plate 24, connecting hole 241, flexible tube 3, left connecting part 31, bending part 32, right connecting part 33, half clamp 4, groove 41, fixing hole 42, screw 43, left fixing plate 44, right fixing plate 45, insulating sheet 5, insulating cloth 6, water inlet pipe 7, pipe joint 71, cylindrical part 8, semi-cylindrical part 81. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] See also Figure 1 — Fig.16 , a foldable induction hardening method, the method comprising the following steps: Step 1: first take out the part to be processed, which includes a cylindrical part 8 or a semi-cylindrical part 81, and then measure the diameter of the part to be processed; then select the arc coil 21 of the left device 1 and the right device 2 of the sensor, so that the inner diameter 23 of the arc coil 21 is larger than the diameter of the part to be processed; Step 2: Start the fixing process, which includes any one or any combination of the following: The first method: if the part to be processed is a cylindrical part 8, the bendable tube 3 on the top of the arc coil 21 is in an unfolded state, that is, the left connecting portion 31, the bending portion 32 and the right connecting portion 33 of the bendable tube 3 are in the same vertical plane or horizontal plane. At this time, the bendable tube 3 and the arc coils 21 on both sides thereof are also in the same vertical plane or horizontal plane; then the corresponding half clamp 4 is selected, and then the vertical tube 23 at the bottom of the arc coil 21 is inserted into the corresponding groove 41 of the half clamp 4 in turn, and then the cylindrical part 8 is fixed inside the arc coil 21, and the arc coil 21 and the cylindrical part 8 are kept separated; The second method: if the part to be processed is a semi-cylindrical part 81, the bendable tube 3 on the top of the arc coil 21 is folded, that is, the left connecting portion 31 and the right connecting portion 33 of the bendable tube 3 are parallel, and the bending portion 32 is in a bent state. At this time, the arc coils 21 are parallel to each other; then the corresponding half clamp 4 is selected, and then the vertical tube 23 at the bottom of the arc coil 21 is inserted into the groove 41 of the corresponding half clamp 4 in turn, and then the semi-cylindrical part 81 is fixed inside the arc coil 21, so that the arc surface of the semi-cylindrical part 81 faces the arc coil 21, and the arc coil 21 and the semi-cylindrical part 81 are kept separated; Step 3: First align the fixing hole 42 on the half clamp 4 with the screw hole 221 of the busbar 22, and then screw the screw 43 into the fixing hole 42 and the screw hole 221 in sequence. At this time, both sides of the half clamp 4 are clamped toward the vertical pipe 23 to fix the vertical pipe 23, and the fixation of the half clamp 4 and the busbar 22 is completed. Then, the insulating sheet 5 is clamped between the two busbars 22; Step 4: first connect the connecting plate 24 at the bottom of the busbar 22 to the induction device, and then allow the induction device to pass an alternating current into the connecting plate 24. The alternating current then flows to the busbar 22, the half clamp 4, and the vertical pipe 23 in sequence, and then the alternating current reaches the arc coil 21, and an alternating magnetic field is generated in the arc coil 21. Then, the alternating magnetic field generates an induced current on the surface of the part to be processed, and the induced current generates heat to heat the surface of the part to be processed, thereby completing the heating stage in induction quenching.

[0039] In the third step, the insulating sheet 5 is clamped between the two busbars 22 by first clamping the insulating sheet 5 between the two busbars 22 and then wrapping the two busbars 22 with insulating cloth 6 .

[0040] 3. A foldable induction hardening method according to claim 2, characterized in that: in the third step, the step of clamping the insulating sheet 5 between the two busbars 22 is the step of clamping the mica sheet between the two busbars 22, and the step of wrapping the two busbars 22 with insulating cloth 6 is the step of wrapping the two busbars 22 with yellow wax cloth.

[0041] In the fourth step, the connecting plate 24 connected to the bottom of the busbar 22 is connected to the induction device by first connecting the connecting plate 24 connected to the bottom of the busbar 22 to the induction device, and then connecting the water inlet pipe 7 connected to the vertical pipe 23 to the water inlet device, and then allowing the water inlet device to pass water into the water inlet pipe 7, and the water then flows into the arc coil 21, and then the water is sprayed out from the multiple water spray holes 212 of the arc coil 21, and the water then falls to the surface of the part to be processed to complete the cooling stage in the induction quenching.

[0042] In the fourth step, the water flows into the arc coil 21 again, flows toward the water spraying portion 223 of the arc coil 21 , flows toward the inclined surface 224 of the water spraying portion 223 , and then sprays out from the water spraying hole 212 on the inclined surface 224 .

[0043] In the fourth step, the inclined surface 224 on which the water flows toward the water spraying portion 223 again is the inclined surface 224 on both sides of the water spraying portion 223 , and the inclined surfaces 224 are symmetrically distributed along the center of the water spraying portion 223 .

[0044] In the fourth step, the inclined surfaces 224 on both sides of the water spray part 223 are inclined surfaces 224 with an angle of forty-five degrees with the vertical plane, and the water flow sprayed from the water spray holes 212 on the inclined surface 224 is water flow sprayed from the water spray holes 212 on the inclined surface 224 at an angle of forty-five degrees.

[0045] In the third step, screwing the screw 43 into the fixing hole 42 and the screw hole 221 in sequence is screwing the screw 43 into the fixing hole 42 on the left fixing plate 44 and the screw hole 221 on the convergence plate 22 in sequence, and then screwing the screw 43 into the fixing hole 42 on the right fixing plate 45 and the screw hole 221 on the convergence plate 22 in sequence.

[0046] In the third step, screwing the screws 43 into the fixing holes 42 on the left fixing plate 44 and the screw holes 221 on the convergent plate 22 in sequence means screwing the screws 43 into the two fixing holes 42 on the left fixing plate 44 and the two screw holes 221 on the convergent plate 22 in sequence, and screwing the screws 43 into the fixing holes 42 on the right fixing plate 45 and the screw holes 221 on the convergent plate 22 in sequence means screwing the screws 43 into the two fixing holes 42 on the right fixing plate 45 and the two screw holes 221 on the convergent plate 22 in sequence.

[0047] In the fourth step, the connecting plate 24 connected to the bottom of the busbar 22 and the sensing device is connected by connecting the three connecting holes 241 at the bottom of the busbar 22 and the connectors of the sensing device.

[0048] The supplementary description of the present invention is as follows: The material of the right device 2 in the present invention is: the arc coil 21 is made of a copper tube, and the bendable tube 3 is made of a bendable copper tube. The bendable copper tube has good flexibility, so the bendable tube 3 can be in an unfolded state or a folded state, and the two ends of the bendable tube 3 are welded to the arc coil 21; the busbar 22 and the connecting plate 24 are made of copper plates; because copper has good conductivity, the current can flow from the connecting plate 24 and the busbar 22 to the arc coil 21 and the bendable tube 3, and then the arc coil 21 and the bendable tube 3 generate an induced current on the surface of the cylindrical part 8 or the semi-cylindrical part 81, so that the surface of the cylindrical part 8 or the semi-cylindrical part 81 is heated to complete the heating stage in the induction quenching.

[0049] Embodiment 1: See also Figure 1 — Fig.16 , a foldable induction hardening method, the method comprising the following steps: Step 1: first take out the part to be processed, which includes a cylindrical part 8 or a semi-cylindrical part 81, and then measure the diameter of the part to be processed; then select the arc coil 21 of the left device 1 and the right device 2 of the sensor, so that the inner diameter 23 of the arc coil 21 is larger than the diameter of the part to be processed; Step 2: Start the fixing process, which includes any one or any combination of the following: The first method: if the part to be processed is a cylindrical part 8, the bendable tube 3 on the top of the arc coil 21 is in an unfolded state, that is, the left connecting portion 31, the bending portion 32 and the right connecting portion 33 of the bendable tube 3 are in the same vertical plane or horizontal plane. At this time, the bendable tube 3 and the arc coils 21 on both sides thereof are also in the same vertical plane or horizontal plane; then the corresponding half clamp 4 is selected, and then the vertical tube 23 at the bottom of the arc coil 21 is inserted into the corresponding groove 41 of the half clamp 4 in turn, and then the cylindrical part 8 is fixed inside the arc coil 21, and the arc coil 21 and the cylindrical part 8 are kept separated; The second method: if the part to be processed is a semi-cylindrical part 81, the bendable tube 3 on the top of the arc coil 21 is folded, that is, the left connecting portion 31 and the right connecting portion 33 of the bendable tube 3 are parallel, and the bending portion 32 is in a bent state. At this time, the arc coils 21 are parallel to each other; then the corresponding half clamp 4 is selected, and then the vertical tube 23 at the bottom of the arc coil 21 is inserted into the groove 41 of the corresponding half clamp 4 in turn, and then the semi-cylindrical part 81 is fixed inside the arc coil 21, so that the arc surface of the semi-cylindrical part 81 faces the arc coil 21, and the arc coil 21 and the semi-cylindrical part 81 are kept separated; Step 3: First align the fixing hole 42 on the half clamp 4 with the screw hole 221 of the busbar 22, and then screw the screw 43 into the fixing hole 42 and the screw hole 221 in sequence. At this time, both sides of the half clamp 4 are clamped toward the vertical pipe 23 to fix the vertical pipe 23, and the fixation of the half clamp 4 and the busbar 22 is completed. Then, the insulating sheet 5 is clamped between the two busbars 22; Step 4: first connect the connecting plate 24 at the bottom of the busbar 22 to the induction device, and then allow the induction device to pass an alternating current into the connecting plate 24. The alternating current then flows to the busbar 22, the half clamp 4, and the vertical pipe 23 in sequence, and then the alternating current reaches the arc coil 21, and an alternating magnetic field is generated in the arc coil 21. Then, the alternating magnetic field generates an induced current on the surface of the part to be processed, and the induced current generates heat to heat the surface of the part to be processed, thereby completing the heating stage in induction quenching.

[0050] In the third step, the insulating sheet 5 is clamped between the two busbars 22 by first clamping the insulating sheet 5 between the two busbars 22, and then the two busbars 22 are wrapped with insulating cloth 6. In the third step, the insulating sheet 5 is clamped between the two busbars 22 by clamping the mica sheet between the two busbars 22, and the insulating cloth 6 is used to wrap the two busbars 22 with yellow wax cloth. Preferably, after the screw 43 is fixed to the fixing hole 42 and the screw hole 221, the outside of the screw 43 is wrapped with insulating tape, and the end of the screw 43 passing through the screw hole 221 is also covered with an insulating washer and a nut to achieve the insulation fixation of the screw 43 and the busbar 22, and prevent the short circuit between the busbars 22 caused by the connection between the screws 43. Preferably, the insulating cloth 6 can be wrapped and fixed with the busbar 22 for a long time for continued use next time.

[0051] Embodiment 2: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig.10In the fourth step, the connecting plate 24 connected to the bottom of the busbar 22 is connected to the induction device by first connecting the connecting plate 24 connected to the bottom of the busbar 22 to the induction device, and then connecting the water inlet pipe 7 connected to the vertical pipe 23 to the water inlet device, and then allowing the water inlet device to pass water into the water inlet pipe 7, and then the water flows into the arc coil 21, and then the water flows out from the multiple water spray holes 212 of the arc coil 21, and then the water flows down to the surface of the part to be processed to complete the cooling stage in the induction quenching. In the fourth step, the water flows into the arc coil 21 again, and the water flows to the water spray part 223 of the arc coil 21, and then the water flows to the inclined surface 224 of the water spray part 223, and then the water flows out from the water spray holes 212 on the inclined surface 224. In the fourth step, the inclined surface 224 to which the water flows again is the inclined surfaces 224 on both sides of the water spraying portion 223, and the inclined surfaces 224 are symmetrically distributed along the center of the water spraying portion 223. In the fourth step, the inclined surfaces 224 on both sides of the water spraying portion 223 are the inclined surfaces 224 on both sides of the water spraying portion 223 with an angle of 45 degrees to the vertical plane, and the water flows out from the water spraying holes 212 on the inclined surface 224 are the water flows out from the water spraying holes 212 on the inclined surface 224 at an angle of 45 degrees.

[0052] When applied, in the fourth step, the end of the vertical pipe 23 away from the arc coil 21 is connected to the water inlet device, and then the water inlet device is made to pass water into the vertical pipe 23, and then the water flows from the vertical pipe 23 to the water spraying part 223, and then the water flows to the inclined surface 224, and then the water flows out from the water spraying hole 212 on the inclined surface 224, and then the water flows down to the surface of the cylindrical part 8 or the semi-cylindrical part 81 to cool the surface of the cylindrical part 8 or the semi-cylindrical part 81 to complete the cooling stage in the induction quenching; when the above process is completed, the arc coil 21 moves back and forth along the length direction of the cylindrical part 8 or the semi-cylindrical part 81 to complete the heating stage and the cooling stage; when the inclined surface 224 is forty-five degrees, the angle of the water sprayed from the water spraying hole 212 is The degree is also forty-five degrees. At this time, the cooling effect of water on the cylindrical part 8 or the semi-cylindrical part 81 is the best. If the angle of water spraying is less than forty-five degrees, the pressure of water spraying to the surface of the cylindrical part 8 or the semi-cylindrical part 81 will be relatively large, the surface of the cylindrical part 8 or the semi-cylindrical part 81 will be rapidly cooled, and the cylindrical part 8 or the semi-cylindrical part 81 will be at risk of cracking; if the angle of water spraying is greater than forty-five degrees, the pressure of water spraying to the surface of the cylindrical part 8 or the semi-cylindrical part 81 will be relatively small, the hardness of the surface of the cylindrical part 8 or the semi-cylindrical part 81 will decrease, and the processing requirements will not be met; when the water is in the arc coil 21 and the flexible tube 3, the arc coil 21 and the flexible tube 3 are also cooled to a certain extent.

[0053] Embodiment 3: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig.16 , in the third step, screwing the screw 43 into the fixing hole 42 and the screw hole 221 in sequence means screwing the screw 43 into the fixing hole 42 on the left fixing plate 44 and the screw hole 221 on the convergent plate 22 in sequence, and then screwing the screw 43 into the fixing hole 42 on the right fixing plate 45 and the screw hole 221 on the convergent plate 22 in sequence. In the third step, screwing the screw 43 into the fixing hole 42 on the left fixing plate 44 and the screw hole 221 on the convergent plate 22 in sequence means screwing the screw 43 into the two fixing holes 42 on the left fixing plate 44 and the two screw holes 221 on the convergent plate 22 in sequence, and screwing the screw 43 into the fixing hole 42 on the right fixing plate 45 and the screw hole 221 on the convergent plate 22 in sequence means screwing the screw 43 into the two fixing holes 42 on the right fixing plate 45 and the two screw holes 221 on the convergent plate 22 in sequence. In the fourth step, the connecting plate 24 connected to the bottom of the busbar 22 and the sensing device is connected by connecting the three connecting holes 241 at the bottom of the busbar 22 and the connectors of the sensing device.

[0054] When applied, in the third step, the corresponding half clamp 4 is selected as follows: when the curved portion 32 is in the unfolded state, the two vertical tubes 23 are respectively located in two narrow grooves 41, and the grooves 41 refer to Fig.12 When the curved portion 32 is in the folded state, the two vertical tubes 23 are located in a wider groove 41, and the groove 41 is shown in FIG. Fig.14 ; In the second step, screwing the screws 43 into the fixing holes 42 and the screw holes 221 in sequence is screwing the screws 43 into the two fixing holes 42 on the left fixing plate 44 and the two screw holes 221 on the busbar 22 in sequence, and then screwing the screws 43 into the two fixing holes 42 on the right fixing plate 44 and the two screw holes 221 on the busbar 22. At this time, the left fixing plate 44 and the right fixing plate 45 both move toward the vertical pipe 23, so the left fixing plate 44 and the right fixing plate 45 clamp the vertical pipe 23 from both sides of the vertical pipe 23, thereby achieving the fixing effect of the vertical pipe 23; in the fourth step, the connecting holes 241 on the connecting plate 24 cooperate with the connector of the sensing device, and the position, size and number of the connecting holes 241 can be set according to the connector of the sensing device.

[0055] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A foldable induction hardening method, characterized in that: The method comprises the following steps: The first step is to first take out a part to be processed, wherein the part to be processed includes a cylindrical part (8) or a semi-cylindrical part (81), and then measure the diameter of the part to be processed; then select the circular arc coil (21) of the left device (1) and the right device (2) of the sensor so that the inner diameter (23) of the circular arc coil (21) is larger than the diameter of the part to be processed; Step 2: Start the fixing process, which includes any one or any combination of the following: The first method: if the part to be processed is a cylindrical part (8), the bendable tube (3) on the top of the arc coil (21) is in an unfolded state, that is, the left connecting portion (31), the bending portion (32) and the right connecting portion (33) of the bendable tube (3) are in the same vertical plane or horizontal plane. At this time, the bendable tube (3) and the arc coils (21) on both sides thereof are also in the same vertical plane or horizontal plane; then, a corresponding half clamp (4) is selected, and then the vertical tube (23) at the bottom of the arc coil (21) is inserted into the groove (41) of the corresponding half clamp (4) in turn, and then the cylindrical part (8) is fixed inside the arc coil (21), and the arc coil (21) and the cylindrical part (8) are kept separated; The second method: if the part to be processed is a semi-cylindrical part (81), the bendable tube (3) on the top of the arc coil (21) is folded, that is, the left connecting portion (31) and the right connecting portion (33) of the bendable tube (3) are parallel, and the bending portion (32) is bent. At this time, the arc coils (21) are parallel to each other; then the corresponding half clamp (4) is selected, and then the vertical tube (23) at the bottom of the arc coil (21) is inserted into the groove (41) of the corresponding half clamp (4) in turn, and then the semi-cylindrical part (81) is fixed inside the arc coil (21), so that the arc surface of the semi-cylindrical part (81) faces the arc coil (21), and the arc coil (21) and the semi-cylindrical part (81) are kept separated; Step 3: first align the fixing hole (42) on the half clamp (4) with the screw hole (221) of the busbar (22), and then screw the screw (43) into the fixing hole (42) and the screw hole (221) in sequence. At this time, both sides of the half clamp (4) are clamped in the direction of the vertical pipe (23) to fix the vertical pipe (23), and the fixation of the half clamp (4) and the busbar (22) is completed. Then, the insulating sheet (5) is clamped between the two busbars (22); Step 4: first connect the connection plate (24) at the bottom of the busbar (22) to the induction device, then allow the induction device to pass an alternating current into the connection plate (24), the alternating current then flows to the busbar (22), the half clamp (4), the vertical pipe (23) in sequence, and then the alternating current reaches the circular arc coil (21), and an alternating magnetic field is generated in the circular arc coil (21), and then the alternating magnetic field generates an induced current on the surface of the part to be processed, and the induced current generates heat to heat the surface of the part to be processed, thereby completing the heating stage in the induction quenching.

2. A foldable induction hardening method according to claim 1, characterized in that: In the third step, the insulating sheet (5) is clamped between the two busbars (22) by first clamping the insulating sheet (5) between the two busbars (22), and then wrapping the two busbars (22) with insulating cloth (6).

3. A foldable induction hardening method according to claim 2, characterized in that: In the third step, clamping the insulating sheet (5) between the two busbars (22) is clamping a mica sheet between the two busbars (22), and wrapping the two busbars (22) with insulating cloth (6) is wrapping the two busbars (22) with yellow wax cloth.

4. A foldable induction hardening method according to claim 1, 2 or 3, characterized in that: In the fourth step, the connecting plate (24) connected to the bottom of the busbar (22) and the induction device are connected by first connecting the connecting plate (24) connected to the bottom of the busbar (22) and the induction device, then connecting the water inlet pipe (7) connected to the vertical pipe (23) and the water inlet device, and then allowing the water inlet device to pass water into the water inlet pipe (7), and the water then flows into the circular arc coil (21), and then the water is sprayed out from the multiple water spray holes (212) of the circular arc coil (21), and the water then falls to the surface of the part to be processed, so as to complete the cooling stage in the induction quenching.

5. A foldable induction hardening method according to claim 4, characterized in that: In the fourth step, the water flows into the circular arc coil (21) again, flows toward the water spraying portion (223) of the circular arc coil (21), and then flows toward the inclined surface (224) of the water spraying portion (223), and then the water sprays out from the water spraying hole (212) on the inclined surface (224).

6. A foldable induction hardening method according to claim 5, characterized in that: In the fourth step, the inclined surface (224) on which the water flows toward the water spray portion (223) again is the inclined surfaces (224) on both sides of the water spray portion (223) on which the water flows toward again, and the inclined surfaces (224) are symmetrically distributed along the center of the water spray portion (223).

7. A foldable induction hardening method according to claim 6, characterized in that: In the fourth step, the inclined surfaces (224) on both sides of the water spraying portion (223) are inclined surfaces (224) at an angle of forty-five degrees to the vertical surface, and the water flow sprayed from the water spraying holes (212) on the inclined surfaces (224) is water flow sprayed from the water spraying holes (212) on the inclined surfaces (224) at an angle of forty-five degrees.

8. A foldable induction hardening method according to claim 1, 2 or 3, characterized in that: In the third step, screwing the screws (43) into the fixing holes (42) and the screw holes (221) in sequence comprises screwing the screws (43) into the fixing holes (42) on the left fixing plate (44) and the screw holes (221) on the convergence plate (22) in sequence, and then screwing the screws (43) into the fixing holes (42) on the right fixing plate (45) and the screw holes (221) on the convergence plate (22) in sequence.

9. A foldable induction hardening method according to claim 8, characterized in that: In the third step, screwing the screws (43) into the fixing holes (42) on the left fixing plate (44) and the screw holes (221) on the convergent plate (22) in sequence means screwing the screws (43) into the two fixing holes (42) on the left fixing plate (44) and the two screw holes (221) on the convergent plate (22) in sequence, and screwing the screws (43) into the fixing holes (42) on the right fixing plate (45) and the screw holes (221) on the convergent plate (22) in sequence means screwing the screws (43) into the two fixing holes (42) on the right fixing plate (45) and the two screw holes (221) on the convergent plate (22) in sequence.

10. A foldable induction hardening method according to claim 9, characterized in that: In the fourth step, the connecting plate (24) connected to the bottom of the busbar (22) and the sensing device is connected by connecting three connecting holes (241) at the bottom of the busbar (22) and the connectors of the sensing device.

Images