Induction device suitable for simultaneous quenching of multiple shaft parts

Abstract

The invention discloses an induction device suitable for simultaneous quenching of multiple shaft parts. The induction device comprises a plurality of induction coils and a confluence plate, each induction coil comprises an induction end and two connecting ends, an insulating sheet is clamped in the middle of each connecting end, the connecting ends are inserted into a Haff clamp far away from the induction ends, the Haff clamps are fixed with a confluence plate, and the confluence plate is vertically connected with a connecting plate. Then the connecting plate is connected with induction equipment, and then the shaft parts are sequentially inserted into the induction ends; when the current of the induction equipment reaches each induction end, each induction end carries out a heating stage in induction quenching on the shaft parts in the induction end, so that induction quenching can be carried out on a plurality of shaft parts at the same time; and the connecting ends are insulated by using the insulating sheets, so that short-circuit accidents of the connecting ends are prevented, and the safety is relatively high. Therefore, induction quenching can be carried out on a plurality of shaft parts at the same time, and the safety is high.

Description

Technical Field

[0001] The invention relates to an induction device for shaft parts, belongs to the field of induction quenching of multiple parts, and in particular to an induction device suitable for simultaneous quenching of multiple shaft parts. 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 201821551919.X and application date September 21, 2018 discloses a layered multi-turn inductor for high-frequency induction hardening, including a body, the body is provided with a slot, the inductor body is clamped in the slot, the left end of the inductor body is fixedly connected with a fixing seat, the fixing seat is provided with a positioning hole, the positioning hole is clamped with a positioning seat, the positioning seat is provided with a second groove, a spring is contacted and connected in the second groove, the left end of the spring is contacted and connected with a positioning rod, the surface of the positioning rod is fixedly connected with a pull rod, the left end of the positioning rod is clamped with a fixing seat, the body is provided with a first groove, the inner wall of the first groove is fixedly connected with a connecting rod, although this design can perform induction hardening on shaft parts through a circular inductor, it still has the following defects: This design has only one inductor and can only perform induction hardening on one shaft part at a time, so the quenching efficiency is low.

[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 existing in the prior art that only one shaft part can be induction hardened, and to provide an induction device suitable for simultaneous quenching of multiple shaft parts that can be induction hardened at the same time.

[0006] To achieve the above objectives, the technical solution of the present invention is: An induction device suitable for simultaneous quenching of multiple shaft parts, the device comprising multiple induction coils and a busbar; Each induction coil includes an induction end and two connection ends, the induction end is arc-shaped, one end of the induction end is provided with an induction opening, both ends of the induction opening are respectively connected to a connection end, an insulating sheet is sandwiched between the middle parts of the connection ends of two adjacent induction coils, the insulating sheet is parallel to the induction end, one end of the connection end away from the induction opening is inserted into the Huff groove of the Huff clamp, the left wall of the Huff groove is connected to the side wall of the connection end, the right wall of the Huff groove is connected to the side wall of the connection end, the two sides of the Huff groove are respectively provided with Huff plates, the Huff plates are provided with Huff holes, and the positions of the Huff holes correspond to the positions of the confluence holes; The confluence hole is located on the confluence plate, fixing screws are inserted into the confluence hole and the half hole, one side of the confluence plate is connected to one side of the plate insulating sheet, and one end of the confluence plate away from the half clamp is vertically connected to a connecting plate.

[0007] There are two Huff clamps, which are symmetrically arranged along the vertical axis of the device, and each Huff slot faces a direction away from another Huff slot; there are two busbars between the two Huff clamps, and there is a plate insulation sheet between the two busbars.

[0008] The induction coil includes a first induction coil, a second induction coil, a third induction coil and a fourth induction coil; the first induction coil includes a first induction end and a first connection end, the second induction coil includes a second induction end and a second connection end, the third induction coil includes a third induction end and a third connection end, and the fourth induction coil includes a fourth induction end and a fourth connection end.

[0009] The top of the first sensing end is lower than the bottom of the second sensing end, the first sensing end and the third sensing end are symmetrically arranged along the device axis, the top of the third sensing end is lower than the top of the fourth sensing end, and the fourth sensing end and the second sensing end are symmetrically arranged along the device axis.

[0010] The first connecting end includes a first horizontal end and a first vertical end, one end of the first horizontal end is connected to one end of the sensing opening, the other end of the first horizontal end is vertically connected to the first vertical end, and the other end of the first vertical end is inserted into the Hough groove; The second connecting end includes a second horizontal end and a second vertical end, one end of the second horizontal end is connected to one end of the sensing opening, the other end of the second horizontal end is vertically connected to the second vertical end, and the other end of the second vertical end is inserted into the Hough groove; The third connecting end includes a third horizontal end and a third vertical end, one end of the third horizontal end is connected to one end of the sensing opening, the other end of the third horizontal end is vertically connected to the third vertical end, and the other end of the third vertical end is inserted into the Hough groove; The fourth connecting end includes a fourth horizontal end and a fourth vertical end, one end of the fourth horizontal end is connected to one end of the sensing opening, the other end of the fourth horizontal end is vertically connected to the fourth vertical end, and the other end of the fourth vertical end is inserted into the Hough groove.

[0011] The outer surface of the sensing end is evenly distributed with water spray holes, the middle of the sensing end is a sensing cavity, the sensing cavity is connected to one end of the connecting cavity in the middle of the connecting end, and the other end of the connecting cavity is connected to one end of the water inlet pipe.

[0012] The sensing end is provided with an inclined surface, the top of the inclined surface is evenly distributed with top water spray holes, and the bottom of the inclined surface is evenly distributed with bottom water spray holes.

[0013] The angle between the inclined surface and the center line of the sensing end is forty-five degrees, the angle between the top water spray hole and the center line of the sensing end is forty-five degrees, and the angle between the bottom water spray hole and the center line of the sensing end is forty-five degrees.

[0014] A pipe joint is arranged at one end of the water inlet pipe away from the connecting cavity.

[0015] The Haff plate is evenly provided with two Haff holes, each of which corresponds to a confluence hole, and a fixing screw is inserted into each of the Haff holes and the confluence hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is an induction device suitable for quenching multiple shaft parts at the same time. The device includes multiple induction coils and a busbar. The induction coils include induction ends and connection ends. An insulating sheet is sandwiched between the connection ends. The connection ends are inserted into the half clamp. The half clamp is fixed to the busbar. One end of the busbar is fixed to the connecting plate. When used, a specified number of connection ends are first inserted into the half clamp, and then the half clamp is fixed to the busbar. Then the connecting plate is connected to the connector of the induction device, and then the shaft parts are inserted into the induction end in sequence. A certain gap needs to be maintained between the shaft parts and the induction end. Then the induction device generates current, and the current flows to the connecting plate, the busbar half clamp and multiple induction coils in sequence. Then the induction coil generates an induced current on the surface of the shaft parts, and then the induced current generates heat to complete the heating stage of the induction quenching of the shaft parts. The advantages of the present invention also include: First point: the materials of multiple sensing ends are the same, and their resistance is roughly the same, so each sensing end has a current of roughly the same size, and then the current generates an induced current in the shaft parts located in the sensing end, and the heating stage of induction quenching is completed by the thermal effect of the induced current, so multiple shaft parts can be induction hardened at the same time, and the quenching efficiency is high; Second point: There is a gap between the induction end and the shaft parts to prevent the induction end from connecting to the shaft parts, which may cause current breakdown of the shaft parts and damage them; Insulating sheets are used between the connection ends of each induction coil to prevent short circuits between the connection ends, and insulating sheets are also used between the busbars to prevent short circuits between the busbars; Therefore, the present invention has high safety; Third point: The connection between the induction coil and the split clamp is detachable. When the induction coil is damaged, the induction coil can be replaced without the need to repair the entire device, remove welds, etc.; After induction hardening is completed, the induction coil and the split clamp are removed and stored separately, which can reduce the volume of the present invention and thus save storage space; Fourth point: The diameter of the induction end is selected according to the shaft parts to be processed, that is, the diameters of multiple induction ends can be different; When the difference in the diameters of the induction ends is not significant, the resistance of the induction ends is approximately the same, that is, the magnitude of the current is approximately the same, and the effect of induction hardening on all shaft parts is the same; Therefore, the present invention can perform induction hardening on multiple shaft parts simultaneously and has high safety.

[0017] 2. In an induction device suitable for simultaneously quenching multiple shaft parts of the present invention, the induction coil includes a first induction coil, a second induction coil, a third induction coil, and a fourth induction coil. The top of the first induction end is lower than the bottom of the second induction end. The first induction end and the third induction end are symmetrically arranged along the axis of the device. The top of the third induction end is lower than the top of the fourth induction end. The fourth induction end and the second induction end are symmetrically arranged along the axis of the device. During application, the first induction coil, the second induction coil, and the third induction coil, the fourth induction coil are respectively located on both sides of the busbar and are arranged in a "field" shape, which can save the space occupied during induction hardening. Therefore, the present invention has less limitation on the production site. Therefore, the present invention occupies less space.

[0018] 3. In an induction device suitable for simultaneously quenching multiple shaft parts of the present invention, the connection end is communicated with the water inlet pipe. The induction end includes a 45-degree inclined surface, and spray holes are evenly distributed on the inclined surface. During application, water is introduced into the induction end through the water inlet pipe, and then the water sprays out from the spray holes and falls onto the surface of the shaft parts to complete the cooling stage in induction hardening without the need to put the shaft parts into a cooling pool. Therefore, the cooling efficiency is improved. Therefore, the present invention has high cooling efficiency.

[0019] 4. In the induction device suitable for simultaneous quenching of multiple shaft parts of the present invention, the two sides of the Huff groove are Huff plates, and each Huff plate has two Huff holes evenly distributed. The Huff plate is provided with two confluence holes corresponding to the Huff holes, and fixing screws are inserted into the Huff holes and the confluence holes. When used, the fixing screws are inserted into the Huff holes and the confluence holes in turn. At this time, the Huff plates clamp the connection ends from both sides of the connection ends to fix the connection ends. At the same time, the Huff clamps also have the function of transmitting current. Therefore, the connection of the present invention is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

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

[0022] Figure 3 yes Figure 1 Left view of .

[0023] Figure 4 yes Figure 3 Application diagram.

[0024] Figure 5 yes Figure 1 Top view of the .

[0025] Figure 6 yes Figure 1 Schematic diagram of the structure of the first induction coil.

[0026] Figure 7 yes Figure 6 Left view of .

[0027] Figure 8 yes Figure 1 Schematic diagram of the structure of the second induction coil.

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

[0029] Fig.10 yes Figure 1 Schematic diagram of the structure of the third induction coil.

[0030] Fig.11 yes Fig.10 Left view of .

[0031] Fig.12 yes Figure 1 Schematic diagram of the structure of the fourth induction coil.

[0032] Fig.13 yes Fig.12 Left view of .

[0033] Fig.14It is a structural schematic diagram of Example 3.

[0034] Fig.15 yes Fig.14 AA section view in.

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

[0036] Fig.17 yes Fig.16 Left view of .

[0037] Fig.18 yes Figure 1 Schematic diagram of the structure of the middle half clamp.

[0038] Fig.19 yes Fig.18 Left view of .

[0039] Fig. 20 It is a structural schematic diagram of Example 5.

[0040] Fig.21 yes Figure 1 Schematic diagram of the structure of the middle pipe joint.

[0041] In the figure: induction coil 1, first induction coil 11, first induction end 111, first connection end 112, first horizontal end 113, first vertical end 114, second induction coil 12, second induction end 121, second connection end 122, second horizontal end 123, second vertical end 124, third induction coil 13, third induction end 131, third connection end 132, third horizontal end 133, third vertical end 134, fourth induction coil 14, fourth induction end 141, fourth connection end 142 , fourth horizontal end 143, fourth vertical end 144, conduit plate 2, conduit hole 21, connecting plate 22, connecting hole 221, sensing end 3, connecting end 31, connecting cavity 311, sensing opening 32, water spray hole 33, top water spray hole 331, bottom water spray hole 332, sensing cavity 34, inclined surface 35, insulating sheet 4, plate insulating sheet 41, Huff clamp 5, Huff groove 51, Huff plate 52, Huff hole 53, fixing screw 531, partition 54, water inlet pipe 6, pipe joint 61, shaft parts 7. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] See also Figure 1 — Fig.21 , an induction device suitable for simultaneous quenching of multiple shaft parts, the device comprising a plurality of induction coils 1 and a busbar 2; Each induction coil 1 includes an induction end 3 and two connection ends 31, the induction end 3 is arc-shaped, one end of the induction end 3 is provided with an induction opening 32, and the two ends of the induction opening 32 are respectively connected to a connection end 31, an insulating sheet 4 is sandwiched between the middle parts of the connection ends 31 of two adjacent induction coils 1, and the insulating sheet 4 is parallel to the induction end 3, and the end of the connection end 31 away from the induction opening 32 is inserted into the Huff groove 51 of the Huff clip 5, the left wall of the Huff groove 51 is connected to the side wall of the connection end 31, and the right wall of the Huff groove 51 is connected to the side wall of the connection end 31, and the two sides of the Huff groove 51 are respectively provided with Huff plates 52, and the Huff plates 52 are provided with Huff holes 53, and the position of the Huff holes 53 corresponds to the position of the confluence hole 21; The conduit hole 21 is located on the conduit plate 2, and fixing screws 531 are inserted into the conduit hole 21 and the half hole 53. One side of the conduit plate 2 is connected to one side of the plate insulating sheet 41, and the end of the conduit plate 2 away from the half clamp 5 is vertically connected to the connecting plate 22.

[0044] There are two Huff clamps 5 , which are symmetrically arranged along the vertical axis of the device, and each Huff groove 51 faces away from another Huff groove 51 ; there are two busbars 2 between the two Huff clamps 5 , and there is a plate insulating sheet 41 between the two busbars 2 .

[0045] The induction coil 1 includes a first induction coil 11, a second induction coil 12, a third induction coil 13 and a fourth induction coil 14; the first induction coil 11 includes a first induction end 111 and a first connection end 112, the second induction coil 12 includes a second induction end 121 and a second connection end 122, the third induction coil 13 includes a third induction end 131 and a third connection end 132, and the fourth induction coil 14 includes a fourth induction end 141 and a fourth connection end 142.

[0046] The top of the first sensing end 111 is lower than the bottom of the second sensing end 121, the first sensing end 111 and the third sensing end 131 are symmetrically arranged along the device axis, the top of the third sensing end 131 is lower than the top of the fourth sensing end 141, and the fourth sensing end 141 and the second sensing end 121 are symmetrically arranged along the device axis.

[0047] The first connecting end 112 includes a first horizontal end 113 and a first vertical end 114, one end of the first horizontal end 113 is connected to one end of the sensing opening 32, the other end of the first horizontal end 113 is vertically connected to the first vertical end 114, and the other end of the first vertical end 114 is inserted into the Hough groove 51; The second connecting end 122 includes a second horizontal end 123 and a second vertical end 124, one end of the second horizontal end 123 is connected to one end of the sensing opening 32, the other end of the second horizontal end 123 is vertically connected to the second vertical end 124, and the other end of the second vertical end 124 is inserted into the Hough groove 51; The third connecting end 132 includes a third horizontal end 133 and a third vertical end 134, one end of the third horizontal end 133 is connected to one end of the sensing opening 32, the other end of the third horizontal end 133 is vertically connected to the third vertical end 134, and the other end of the third vertical end 134 is inserted into the Hough groove 51; The fourth connecting end 142 includes a fourth horizontal end 143 and a fourth vertical end 144 . One end of the fourth horizontal end 143 is connected to one end of the sensing opening 32 , the other end of the fourth horizontal end 143 is vertically connected to the fourth vertical end 144 , and the other end of the fourth vertical end 144 is inserted into the Hough groove 51 .

[0048] Water spray holes 33 are evenly distributed on the outer surface of the sensing end 3, and the middle part of the sensing end 3 is a sensing cavity 34, which is connected to one end of a connecting cavity 311 in the middle of the connecting end 31, and the other end of the connecting cavity 311 is connected to one end of a water inlet pipe 6.

[0049] The sensing end 3 is provided with an inclined surface 35 , the top of the inclined surface 35 is evenly distributed with top water spray holes 331 , and the bottom of the inclined surface 35 is evenly distributed with bottom water spray holes 332 .

[0050] The angle between the inclined surface 35 and the center line of the sensing end 3 is forty-five degrees, the angle between the top water spray hole 331 and the center line of the sensing end 3 is forty-five degrees, and the angle between the bottom water spray hole 332 and the center line of the sensing end 3 is forty-five degrees.

[0051] A pipe joint 61 is disposed at one end of the water inlet pipe 6 away from the connecting cavity 311 .

[0052] Two Haff holes 53 are evenly arranged on the Haff plate 52 , each Haff hole 53 corresponds to a confluence hole 21 , and a fixing screw 531 is inserted into each Haff hole 53 and the confluence hole 21 .

[0053] The supplementary description of the present invention is as follows: The materials of the present invention are as follows: the induction coil 1 is made of square tube copper to ensure good conductivity; the insulating sheet 4 between the connection ends 31 is a mica sheet, and the insulating sheet 4 can be fixed to the connection ends 31 for a long time without removing the connection ends 31, so that the present invention is more convenient to use; the busbar 2 and the connecting plate 22 are made of a whole piece of copper plate to ensure good conductivity, and the shape of the connecting plate 22 needs to match the connector size of the induction device; a board insulating sheet 41 is arranged between the busbars 2, and the board insulating sheet 41 is a mica sheet. The outside of the busbar 2 is wrapped and fastened with yellow wax cloth, which improves the connection stability while insulating; the board insulating sheet 41, the busbar 2 and the yellow wax cloth can also be fixed for a long time without multiple disassembly and assembly, so as to improve the convenience of the present invention when used.

[0054] Embodiment 1: See also Figure 1 — Fig.21 An induction device suitable for simultaneous quenching of multiple shaft parts, the device comprises a plurality of induction coils 1 and a busbar 2; each induction coil 1 comprises an induction end 3 and two connection ends 31, the induction end 3 is arc-shaped, one end of the induction end 3 is provided with an induction opening 32, both ends of the induction opening 32 are respectively connected to a connection end 31, an insulating sheet 4 is sandwiched between the middle parts of the connection ends 31 of two adjacent induction coils 1, the insulating sheet 4 is parallel to the induction end 3, and the end of the connection end 31 away from the induction opening 32 is inserted into the Huff groove 51 of the Huff clamp 5, The left wall of the Haff groove 51 is connected to the side wall of the connection end 31, and the right wall of the Haff groove 51 is connected to the side wall of the connection end 31. Haff plates 52 are respectively arranged on both sides of the Haff groove 51, and Haff holes 53 are arranged on the Haff plates 52. The position of the Haff holes 53 corresponds to the position of the confluence hole 21. The confluence hole 21 is located on the confluence plate 2. Fixing screws 531 are inserted into the confluence hole 21 and the Haff holes 53. One side of the confluence plate 2 is connected to one side of the plate insulating sheet 41. The end of the confluence plate 2 away from the Haff clamp 5 is vertically connected to the connecting plate 22. There are two Haff clamps 5. The two Haff clamps 5 are symmetrically arranged along the vertical axis of the device. Each Haff groove 51 faces the direction away from another Haff groove 51. There are two confluence plates 2 between the two Haff clamps 5, and there is a plate insulating sheet 41 between the two confluence plates 2.

[0055] When in use, first count the number of shaft parts 7 to be processed, then take out the same number of induction coils 1, then put the connection ends 31 into the Haff grooves 51 in turn, then put the insulating sheets 4 between the connection ends 31 of adjacent induction coils 1, the insulating sheets 4 are parallel to the induction ends 3, then insert the fixing screws 531 into the Haff holes 53 and the confluence holes 21 in turn, at this time, the inner wall of the Haff groove 51 clamps all the connection ends 31 to achieve the fixation of the connection ends 31, and at the same time achieves the fixation of the Haff clamp 5 and the confluence plate 2; then connect the connection holes 221 on the connecting plate 22 to the connector of the induction device, then insert the shaft parts 7 to be processed into the induction end 3 in turn, so that there is a certain gap between the shaft parts 7 and the inner wall of the induction end 3 to prevent the current on the induction end 3 from damaging the shaft parts 7, then fix the shaft parts 7, and then turn on the induction device, generate current in the induction device, and the current flows through in turn Connecting plate 22, busbar 2, half clamp 5, and then the current flows into each connection end 31, and then the current flows into each induction end 3. At this time, the current generates an alternating magnetic field, and the shaft parts 7 located in the alternating magnetic field generate a high-density induced current. The induced current generates heat, so the surface of the shaft parts 7 quickly heats up to complete the heating stage in induction quenching; at this time, the induction end 3 can be moved back and forth along the axis of the shaft parts 7 to enhance the heating effect, and then the heated shaft parts 7 are subjected to a cooling stage to complete the induction quenching of the shaft parts 7; an insulating sheet 4 is used to space two adjacent connection ends 31 to prevent a short circuit accident between the connection ends 31; a plate insulating sheet 41 is used to space two busbars 2 to prevent a short circuit accident between the busbars 2; the size of the half groove 51 is selected according to the number of shaft parts 7 to be processed so that the half groove 51 can firmly clamp all the connection ends 31.

[0056] Embodiment 2: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig.13The induction coil 1 includes a first induction coil 11, a second induction coil 12, a third induction coil 13 and a fourth induction coil 14; the first induction coil 11 includes a first induction end 111 and a first connection end 112, the second induction coil 12 includes a second induction end 121 and a second connection end 122, the third induction coil 13 includes a third induction end 131 and a third connection end 132, and the fourth induction coil 14 includes a fourth induction end 141 and a fourth connection end 142. The top of the first induction end 111 is lower than the bottom of the second induction end 121, the first induction end 111 and the third induction end 131 are symmetrically arranged along the axis of the device, the top of the third induction end 131 is lower than the top of the fourth induction end 141, and the fourth induction end 141 and the second induction end 121 are symmetrically arranged along the axis of the device. The first connecting end 112 includes a first horizontal end 113 and a first vertical end 114, one end of the first horizontal end 113 is connected to one end of the sensing opening 32, the other end of the first horizontal end 113 is vertically connected to the first vertical end 114, and the other end of the first vertical end 114 is inserted into the Hough groove 51; the second connecting end 122 includes a second horizontal end 123 and a second vertical end 124, one end of the second horizontal end 123 is connected to one end of the sensing opening 32, the other end of the second horizontal end 123 is vertically connected to the second vertical end 124, and the other end of the second vertical end 124 is inserted into the Hough groove 51; The third connecting end 132 includes a third horizontal end 133 and a third vertical end 134, one end of the third horizontal end 133 is connected to one end of the sensing opening 32, the other end of the third horizontal end 133 is vertically connected to the third vertical end 134, and the other end of the third vertical end 134 is inserted into the Haff groove 51; the fourth connecting end 142 includes a fourth horizontal end 143 and a fourth vertical end 144, one end of the fourth horizontal end 143 is connected to one end of the sensing opening 32, the other end of the fourth horizontal end 143 is vertically connected to the fourth vertical end 144, and the other end of the fourth vertical end 144 is inserted into the Haff groove 51.

[0057] During application, when the number of shaft parts 7 to be processed is less than or equal to four, first place the first vertical end 114, the second vertical end 124, the third vertical end 134, and the fourth vertical end 144 into the half-moon groove 51 in sequence. Then place the insulating sheet 4 between the first vertical end 114 and the second vertical end 124, then place the insulating sheet 4 between the second vertical end 124 and the third vertical end 134, and then place the insulating sheet 4 between the third vertical end 134 and the fourth vertical end 144, so as to complete the insulation effect between the first vertical end 114, the second vertical end 124, the third vertical end 134, and the fourth vertical end 144. Then insert all the fixing screws 531 into the half-moon holes 53 and the current collecting holes 21 in sequence. At this time, the half-moon plate 52 moves towards the center of the half-moon groove 51. Therefore, the half-moon plate 52 drives the half-moon groove 51 to clamp the first vertical end 114 and the fourth vertical end 144, and then the first vertical end 114 and the fourth vertical end 144 clamp the second vertical end 124 and the third vertical end 134 through the insulating sheet 4, so as to achieve the fixing effect of the first vertical end 114, the second vertical end 124, the third vertical end 134, and the fourth vertical end 144. Since the lengths of the first vertical end 114 and the third vertical end 134 are shorter, the heights of the first induction end 111 and the third induction end 131 are lower. Since the lengths of the second vertical end 124 and the fourth vertical end 144 are longer, the heights of the second induction end 121 and the fourth induction end 141 are higher. Therefore, the first induction end 111, the third induction end 131, the second induction end 121, and the fourth induction end 141 are arranged in two rows from low to high, which can save a certain amount of space. The first induction end 111 and the third induction end 131 are symmetrically distributed along the axis of the device, and the second induction end 121 and the fourth induction end 141 are symmetrically distributed along the axis of the device. Therefore, the first induction end 111, the second induction end 121, the third induction end 131, and the fourth induction end 141 are distributed in a "field" shape, which can save the space occupied during processing to the greatest extent. Then insert all the shaft parts 7 into the first induction end 111, the second induction end 121, the third induction end 131, and the fourth induction end 141 in sequence, keeping a gap between the shaft part 7 and the first induction end 111, the second induction end 121, the third induction end 131, or the fourth induction end 141. Then move the connecting plate 22, and then the connecting plate 22 drives the current collecting plate 2 and the half-moon clamp 5 to move in sequence, and then the half-moon clamp 5 drives the first induction coil 11, the second induction coil 12, the third induction coil 13, and the fourth induction coil 14 to move. Therefore, the moving effect of the first induction end 111, the second induction end 121, the third induction end 131, and the fourth induction end 141 can be achieved. Thus, the effect of the heating stage of induction hardening for multiple shaft parts 7 at the same time is achieved. The number and position of the induction coils 1 can be set according to actual needs.

[0058] Embodiment 3: The basic content is the same as that of Embodiment 1, the difference is that: Please refer to Figure 1 — Fig.21 , the sensing end 3 is provided with an inclined surface 35, the middle part of the sensing end 3 is a sensing cavity 34, the sensing cavity 34 is connected with one end of the connecting cavity 311 in the middle of the connecting end 31, and the other end of the connecting cavity 311 is connected with one end of the water inlet pipe 6. The sensing end 3 is provided with an inclined surface 35, the top of the inclined surface 35 is evenly distributed with top spray holes 331, and the bottom of the inclined surface 35 is evenly distributed with bottom spray holes 332. The angle between the inclined surface 35 and the center line of the sensing end 3 is forty-five degrees, the angle between the top spray hole 331 and the center line of the sensing end 3 is forty-five degrees, and the angle between the bottom spray hole 332 and the center line of the sensing end 3 is forty-five degrees. The end of the water inlet pipe 6 away from the connecting cavity 311 is provided with a pipe joint 61.

[0059] When in use, first connect the pipe joint 61 to one end of the water pipe, the water in the water pipe enters the pipe joint 61, then the water flows into the water inlet pipe 6, and then the water flows into the connecting cavity 311 and the sensing cavity 34 in sequence, and then the water flows to the inclined surface 35, and then the water is sprayed out from the top water spray hole 331 and the bottom water spray hole 332 to form a water flow, and then the water flows to the shaft parts 7 to cool the shaft parts 7; the angle between the top water spray hole 331 and the center line of the sensing end 3 is forty-five degrees, so the water flow sprayed from the top water spray hole 331 is forty-five degrees, and the angle between the bottom water spray hole 332 and the center line of the sensing end 3 is forty-five degrees, so the water flow from the bottom water spray hole 332 is forty-five degrees. The water flow sprayed out of the water hole 332 is forty-five degrees. When the water flow is forty-five degrees, the cooling effect of the water flow on the shaft parts 7 is the best; if the angle of the water flow spraying is less than forty-five degrees, the pressure of the water flow falling on the shaft parts 7 is relatively large, the surface of the shaft parts 7 will cool down rapidly, and the shaft parts 7 will have the risk of cracking; if the angle of the water flow spraying is greater than forty-five degrees, the pressure of the water flow falling on the surface of the shaft parts 7 will be relatively small, the hardness of the surface of the shaft parts 7 will decrease, and the processing requirements will not be met; when the water is in the sensing end 3 and the connecting end 31, the sensing end 3 and the connecting end 31 are also cooled to a certain extent.

[0060] Embodiment 4: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig.19 , two Haff holes 53 are evenly arranged on the Haff plate 52, each Haff hole 53 corresponds to a confluence hole 21, and a fixing screw 531 is inserted into each Haff hole 53 and the confluence hole 21. Preferably, the outside of the fixing screw 531 is wrapped with insulating tape, and an insulating washer and a nut are sleeved on one end of the fixing screw 531 passing through the confluence hole 21.

[0061] When in use, after all the connection ends 31 are placed in the Haff groove 51, all the fixing screws 531 are inserted into the Haff holes 53 and the confluence holes 21 in turn. At this time, the Haff clamp 5 and the confluence plate 2 are fixed, and the Haff plate 52 moves toward the Haff groove 51 to drive the Haff groove 51 to clamp the connection end 31; the Haff plates 52 are located on both sides of the Haff groove 51, so the effect of clamping the Haff groove 51 from both sides of the Haff groove 51 is achieved. There are two Haff holes 53 evenly distributed on each Haff plate 52, which improves the stability of the Haff plate 52 clamping the Haff groove 51, and also achieves a stable connection effect between the Haff clamp 5 and the confluence plate 2; the outside of the fixing screw 531 is wrapped with insulating tape, and an insulating washer and a nut are sleeved on one end of the fixing screw 531 passing through the confluence hole 21 to insulate the fixing screw 531 from the confluence plate 2 to prevent the fixing screws 531 from being connected and causing a short circuit between the confluence plates 2.

[0062] Embodiment 5: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig. 20 A partition plate 54 is provided in the Hough groove 51 .

[0063] During application, when the number of shaft parts 7 is small, a partition 54 is set in the Haff groove 51 so that the inner wall of the Haff groove 51 and the partition 54 clamp the connecting end 31 to clamp and fix all the connecting ends 31; the position of the partition 54 can be set as needed to achieve the effect of clamping one or more connecting ends 31.

[0064] 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. An induction device suitable for simultaneous quenching of multiple shaft parts, characterized in that: The device comprises a plurality of induction coils (1) and a busbar (2); Each induction coil (1) comprises an induction end (3) and two connection ends (31), the induction end (3) being arc-shaped, one end of the induction end (3) being provided with an induction opening (32), both ends of the induction opening (32) being respectively connected to a connection end (31), an insulating sheet (4) being sandwiched between the middle parts of the connection ends (31) of two adjacent induction coils (1), the insulating sheet (4) being parallel to the induction end (3), the end of the connection end (31) away from the induction opening (32) being inserted into a Haff groove (51) of a Haff clamp (5), the left wall of the Haff groove (51) being connected to the side wall of the connection end (31), the right wall of the Haff groove (51) being connected to the side wall of the connection end (31), the two sides of the Haff groove (51) being respectively provided with Haff plates (52), the Haff plates (52) being provided with Haff holes (53), the position of the Haff holes (53) corresponding to the position of the confluence hole (21); The collecting hole (21) is located on the collecting plate (2), fixing screws (531) are inserted into the collecting hole (21) and the half hole (53), one side of the collecting plate (2) is connected to one side of the plate insulating sheet (41), and one end of the collecting plate (2) away from the half clamp (5) is vertically connected to a connecting plate (22).

2. The induction device for simultaneous quenching of multiple shaft parts according to claim 1, characterized in that: The number of the Haff clamps (5) is two, the two Haff clamps (5) are symmetrically arranged along the vertical axis of the device, and each Haff groove (51) faces a direction away from another Haff groove (51); between the two Haff clamps (5) are two busbars (2), and between the two busbars (2) is a plate insulating sheet (41).

3. An induction device suitable for simultaneous quenching of multiple shaft parts according to claim 1 or 2, characterized in that: The induction coil (1) comprises a first induction coil (11), a second induction coil (12), a third induction coil (13) and a fourth induction coil (14); the first induction coil (11) comprises a first induction end (111) and a first connection end (112), the second induction coil (12) comprises a second induction end (121) and a second connection end (122), the third induction coil (13) comprises a third induction end (131) and a third connection end (132), and the fourth induction coil (14) comprises a fourth induction end (141) and a fourth connection end (142).

4. The induction device for simultaneous quenching of multiple shaft parts according to claim 3, characterized in that: The top of the first sensing end (111) is lower than the bottom of the second sensing end (121); the first sensing end (111) and the third sensing end (131) are symmetrically arranged along the axis of the device; the top of the third sensing end (131) is lower than the top of the fourth sensing end (141); and the fourth sensing end (141) and the second sensing end (121) are symmetrically arranged along the axis of the device.

5. The induction device for simultaneous quenching of multiple shaft parts according to claim 4, characterized in that: The first connecting end (112) comprises a first horizontal end (113) and a first vertical end (114); one end of the first horizontal end (113) is connected to one end of the sensing opening (32); the other end of the first horizontal end (113) is vertically connected to the first vertical end (114); and the other end of the first vertical end (114) is inserted into the Hough groove (51); The second connecting end (122) comprises a second horizontal end (123) and a second vertical end (124); one end of the second horizontal end (123) is connected to one end of the sensing opening (32); the other end of the second horizontal end (123) is vertically connected to the second vertical end (124); and the other end of the second vertical end (124) is inserted into the Hough groove (51); The third connecting end (132) comprises a third horizontal end (133) and a third vertical end (134), one end of the third horizontal end (133) is connected to one end of the sensing opening (32), the other end of the third horizontal end (133) is vertically connected to the third vertical end (134), and the other end of the third vertical end (134) is inserted into the Hough groove (51); The fourth connecting end (142) comprises a fourth horizontal end (143) and a fourth vertical end (144); one end of the fourth horizontal end (143) is connected to one end of the sensing opening (32); the other end of the fourth horizontal end (143) is vertically connected to the fourth vertical end (144); and the other end of the fourth vertical end (144) is inserted into the Hough groove (51).

6. An induction device suitable for simultaneous quenching of multiple shaft parts according to claim 1 or 2, characterized in that: Water spray holes (33) are evenly distributed on the outer surface of the sensing end (3), the middle part of the sensing end (3) is a sensing cavity (34), the sensing cavity (34) is connected to one end of a connecting cavity (311) in the middle part of the connecting end (31), and the other end of the connecting cavity (311) is connected to one end of a water inlet pipe (6).

7. The induction device for simultaneous quenching of multiple shaft parts according to claim 6, characterized in that: The sensing end (3) is provided with an inclined surface (35), the top of the inclined surface (35) is evenly distributed with top water spray holes (331), and the bottom of the inclined surface (35) is evenly distributed with bottom water spray holes (332).

8. The induction device for simultaneous quenching of multiple shaft parts according to claim 7, characterized in that: The angle between the inclined surface (35) and the midline of the sensing end (3) is forty-five degrees, the angle between the top water spray hole (331) and the midline of the sensing end (3) is forty-five degrees, and the angle between the bottom water spray hole (332) and the midline of the sensing end (3) is forty-five degrees.

9. The induction device for simultaneous quenching of multiple shaft parts according to claim 8, characterized in that: A pipe joint (61) is provided at one end of the water inlet pipe (6) away from the connecting cavity (311).

10. An induction device suitable for simultaneous quenching of multiple shaft parts according to claim 1 or 2, characterized in that: Two Haff holes (53) are evenly arranged on the Haff plate (52), each Haff hole (53) corresponds to a confluence hole (21), and a fixing screw (531) is inserted into each Haff hole (53) and the confluence hole (21).

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