Quenching device

Abstract

The utility model discloses a quenching device, which relates to the technical field of heat treatment of workpieces and comprises a frame, a transfer mechanism, an electromagnetic heating coil and a cooling box. A mounting frame is arranged at the top of the rack; the transfer mechanism comprises a transfer frame and a clamp, the transfer frame is mounted on the mounting frame and can move and vertically ascend and descend relative to the mounting frame, and the clamp is mounted on the transfer frame; the electromagnetic heating coil is installed at the top of the rack and located on the working side, a vertically-arranged heating channel is defined by the electromagnetic heating coil, the heating channel is used for allowing the to-be-quenched workpiece clamped by the clamp to stretch in, and the electromagnetic heating coil is used for heating the to-be-quenched workpiece stretching into the heating channel; the cooling box is installed on the rack and located on the working side, an opening is formed in the top of the cooling box, the electromagnetic heating coil is located above the opening and located on one side of the opening, and cooling liquid is contained in the cooling box. The quenching device disclosed by the utility model reduces the labor intensity of workers and is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of workpiece heat treatment equipment, and in particular to a quenching device. Background Technology

[0002] Before being put into use, workpieces are generally quenched to improve their rigidity, hardness, and wear resistance. Currently, the quenching process mostly relies on manual labor to hold the workpieces in a clamping tool for heating, and then manually transfer the heated workpieces to a cooling liquid for cooling. This not only increases the labor intensity and has low efficiency, but manual operation is also prone to errors, such as unstable clamping causing the workpieces to fall off during transfer, which is not safe and reliable. Utility Model Content

[0003] The main purpose of this utility model is to propose a quenching device that aims to solve the technical problems of high labor intensity and lack of safety and reliability caused by relying on manual transfer of workpieces to be quenched.

[0004] To achieve the above objectives, this utility model proposes a quenching device, comprising:

[0005] A frame, wherein a mounting bracket is provided on the top of the frame, and one side of the mounting bracket along the first horizontal direction is the working side;

[0006] The transfer mechanism includes a transfer frame and a clamp for holding the workpiece to be quenched. The transfer frame is mounted on the mounting frame and can move and rise vertically relative to the mounting frame in a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The clamp is mounted on the transfer frame and located on the working side.

[0007] An electromagnetic heating coil is installed on the top of the frame and located on the working side. The electromagnetic heating coil forms a vertically arranged heating channel for the workpiece to be quenched, which is held by the fixture, to extend into. The electromagnetic heating coil is used to heat the workpiece to be quenched that extends into the heating channel.

[0008] A cooling box is mounted on the frame and located on the working side. The top of the cooling box has an opening arranged along the second horizontal direction. The electromagnetic heating coil is located above the opening and on one side of the opening along the second horizontal direction. The cooling box contains coolant. The opening allows the heated workpiece to be quenched to be inserted into the coolant for cooling.

[0009] In one embodiment, the mounting frame includes a guide rod and two support rods, the two support rods extending vertically and being spaced apart at the top of the frame along the second horizontal direction, and the guide rod extending along the second horizontal direction with its two ends respectively connected to the top of the two support rods;

[0010] A slider is slidably connected to the guide rod, and the transfer frame is slidably connected to the slider. The slider and the transfer frame can move relative to the guide rod in the second horizontal direction, and the transfer frame can rise and fall vertically relative to the slider.

[0011] In one embodiment, the slider includes a first connecting block and a second connecting block that are connected to each other, the first connecting block and the guide rod being slidably connected, and the second connecting block being located on the working side;

[0012] The transfer frame includes a vertical rod, which is slidably connected to the second connecting block, and the clamp is disposed at the bottom end of the vertical rod.

[0013] In one embodiment, the transfer frame further includes a vertically extending operating rod located on the side of the mounting frame opposite to the working side. The operating rod is connected to the vertical rod via two limiting rods, which are respectively located above and below the guide rod.

[0014] In one embodiment, one of the support rods near the electromagnetic heating coil is a first support rod, and the other support rod is a second support rod. A limiting member is provided on the side of the first support rod, and a limiting hole is provided on the limiting member.

[0015] A limiting pin is also provided at the bottom of the limiting rod located below the guide rod; the limiting pin can be inserted into the limiting hole to limit the workpiece to be quenched, which is clamped on the fixture, to be confined within the heating channel.

[0016] In one embodiment, a pulley is rotatably connected to the second support rod, a traction rope is wound around the pulley, one end of the traction rope is connected to the slider, and the other end of the traction rope is connected to a counterweight, and the counterweight is located on one side of the frame along the second horizontal direction.

[0017] In one embodiment, the frame is further provided with a counterweight box along the second horizontal direction and on the side close to the counterweight block. The counterweight box forms a guide channel extending vertically, and the counterweight block is suspended in the guide channel.

[0018] In one embodiment, a water pump and a cooling fan are also provided on the top of the frame. A heat sink is provided at the bottom of the cooling fan. The water inlet of the water pump is connected to the cooling tank through an inlet pipe, and the water outlet of the water pump is connected to the cooling tank through an outlet pipe. Both the inlet pipe and the outlet pipe pass through the bottom of the cooling fan and are connected to the heat sink. The cooling fan is used to blow air toward the heat sink.

[0019] In one embodiment, a protective box is provided on the top of the frame, and the protective box is located on the working side away from the electromagnetic heating coil. The water pump and the cooling fan are disposed inside the protective box, and an air inlet is provided on the top of the protective box corresponding to the position of the cooling fan.

[0020] In one embodiment, the protective box is further provided with a surrounding panel on the side near the mounting bracket, the surrounding panel forming an open-top mounting space, and the electromagnetic heating coil is disposed within the mounting space.

[0021] This utility model's quenching device features a compact and space-saving overall structure by mounting the transfer mechanism, electromagnetic heating coil, and cooling box all on a frame. A mounting frame is installed on the top of the frame, and the transfer mechanism's transfer frame is mounted on this frame and can move and rise relative to it. During movement and lifting, the transfer frame synchronously moves and lifts the clamps, allowing the workpiece to be quenched to be precisely moved into the heating channel for heating and into the cooling box for cooling. This eliminates the need for manual handling and reduces labor intensity. Furthermore, the transfer mechanism guides the transfer path of the workpieces, ensuring consistent operation and maintaining uniform quenching efficiency for all workpieces. The clamps also prevent the risk of workpiece slippage due to unstable manual clamping, improving operational safety and reliability.

[0022] In addition, the electromagnetic heating induction coil is located on one side above the opening, with a compact overall layout. The electromagnetic heating induction coil is also closer to the cooling box. After the workpiece to be quenched is heated, it can be quickly transferred to the cooling box for cooling through the transfer mechanism, which further improves the quenching efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a quenching device provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the quenching device provided in one embodiment of the present invention from another perspective;

[0026] Figure 3 This is a partial structural schematic diagram of a quenching device provided in an embodiment of the present invention.

[0027] Explanation of icon numbers:

[0028] 100. Quenching device; 1. Frame; 11. Mounting bracket; 111. Guide rod; 112. Support rod; 112a. First support rod; 112b. Second support rod; 113. Sliding block; 1131. First connecting block; 1132. Second connecting block; 114. Limiting component; 1141. Limiting hole; 115. Pulley; 116. Traction rope; 117. Counterweight; 118. Counterweight box; 1181 1. Guide channel; 119. Protective box; 1191. Enclosure; 1192. Installation space; 2. Transfer mechanism; 21. Transfer frame; 211. Vertical rod; 212. Operating lever; 213. Limiting rod; 214. Limiting pin; 22. Clamp; 3. Electromagnetic heating coil; 31. Heating channel; 4. Cooling box; 41. Opening; 42. Water pump; 43. Cooling fan; 44. Inlet pipe; 45. Outlet pipe;

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model proposes a quenching device 100.

[0034] Please see Figure 1 In one embodiment of this utility model, the quenching device 100 includes a frame 1, a transfer mechanism 2, an electromagnetic heating coil 3, and a cooling box 4. A mounting frame 11 is provided on the top of the frame 1, with one side of the mounting frame 11 along a first horizontal direction serving as the working side. The transfer mechanism 2 includes a transfer frame 21 and a clamp 22 for holding the workpiece to be quenched. The transfer frame 21 is mounted on the mounting frame 11 and can move and rise vertically relative to the mounting frame 11 along a second horizontal direction, with the first horizontal direction perpendicular to the second horizontal direction. The clamp 22 is mounted on the transfer frame 21 and located on the working side. The electromagnetic heating coil 3 is mounted on the top of the frame 1 and positioned... On the working side, the electromagnetic heating coil 3 forms a vertically arranged heating channel 31, which is used for the workpiece to be quenched held by the fixture 22 to extend into. The electromagnetic heating coil 3 is used to heat the workpiece to be quenched that extends into the heating channel 31. The cooling box 4 is installed on the frame 1 and located on the working side. The top of the cooling box 4 has an opening 41 arranged in the second horizontal direction. The electromagnetic heating coil 3 is located above the opening 41 and on one side of the opening 41 along the second horizontal direction. The cooling box 4 contains coolant. The opening 41 allows the heated workpiece to be quenched to be inserted into the coolant so that the workpiece to be quenched can be cooled by the coolant.

[0035] It should be noted that the first horizontal direction is... Figure 1 The front-back direction, the second horizontal direction is Figure 1 The left and right directions are in the middle, and the vertical direction is... Figure 1 The up and down directions in the middle.

[0036] The quenching device 100 of this utility model has a compact and space-saving overall structure by mounting the transfer mechanism 2, electromagnetic heating coil 3, and cooling box 4 on the frame 1. A mounting frame 11 is set on the top of the frame 1, and the transfer frame 21 of the transfer mechanism 2 is mounted on the mounting frame 11 and can move and rise relative to the mounting frame 11. When the transfer frame 21 moves and rises, it synchronously drives the clamp 22 to move and rise, so that the workpiece to be quenched can be accurately moved into the heating channel 31 for heating and into the cooling box 4 for cooling by clamping the workpiece by the clamp 22. There is no need for manual clamping and handling of the workpiece to be quenched, which reduces the intensity of manual labor. Furthermore, the transfer mechanism 2 is used to transfer the workpiece to be quenched, and the transfer path of the workpiece to be quenched is planned, so that the operation is uniform, the quenching efficiency of each workpiece to be quenched is consistent and higher, and the clamp 22 is used to hold the workpiece to be quenched, which avoids the risk of workpiece falling off due to unstable manual clamping, and also improves the safety and reliability of operation.

[0037] In addition, the electromagnetic heating induction coil is located on one side above the opening 41, with a compact overall layout. The electromagnetic heating induction coil is also closer to the cooling box 4. After the workpiece to be quenched is heated, it can be quickly transferred to the cooling box 4 for cooling through the transfer mechanism 2, which further improves the quenching efficiency.

[0038] It should be noted that the workpiece to be quenched in this embodiment is illustrated using a positioning pin as an example. In actual use, the workpiece to be quenched can also be other ferrous mechanical components such as bolts, nuts, and shafts, which will not be elaborated here.

[0039] Furthermore, the frame 1 is also equipped with an electrically connected power supply and an electromagnetic heating controller, which are electrically connected to the electromagnetic heating coil 3. The electromagnetic heating controller switches the DC power from the power supply at a high frequency and then passes it through the electromagnetic heating coil 3, thereby generating a high-speed changing alternating magnetic field in the electromagnetic heating coil 3. When the ferrous workpiece is placed inside the electromagnetic heating coil 3, the surface of the container cuts the alternating magnetic field lines, generating an alternating current (i.e., eddy current) in the ferrous workpiece. The eddy current causes the charge carriers in the ferrous workpiece to move at high speed and randomly. The charge carriers collide and rub against each other, generating heat energy, thereby heating the ferrous workpiece.

[0040] In a preferred embodiment, the coolant is liquid water.

[0041] In one embodiment, the mounting frame 11 includes a guide rod 111 and two support rods 112. The two support rods 112 extend vertically and are spaced apart at the top of the frame 1 along a second horizontal direction. The guide rod 111 extends along the second horizontal direction and its two ends are respectively connected to the top of the two support rods 112. A slider 113 is slidably connected to the guide rod 111. The transfer frame 21 is slidably connected to the slider 113. The slider 113 and the transfer frame 21 can move relative to the guide rod 111 along the second horizontal direction, and the transfer frame 21 can move vertically up and down relative to the slider 113.

[0042] In this embodiment, by setting a guide rod 111, two support rods 112 extend vertically and are connected to the top of the frame 1 at intervals in the left and right directions, providing stable support for the entire transfer mechanism 2 and the guide rod 111, increasing the stability of the structure; and by setting a slider 113 on the guide rod 111, the transfer frame 21 is slidably connected to the slider 113, and the slider 113 can slide along the guide rod 111, so that the transfer frame 21 can slide along the guide rod 111 at the same time as the slider 113, that is, move in the left and right directions. The guide rod 111 provides a precise guiding function and also helps to ensure that the transfer frame 21 remains stable and on the same path when moving in the left and right directions; in addition, the slidable connection between the transfer frame 21 and the slider 113 allows the transfer frame 21 to rise and fall relative to the slider 113, so as to flexibly adjust the position of the workpiece to be quenched held on the fixture 22, which is more flexible.

[0043] In actual use, the workpiece to be quenched is first clamped on the fixture 22. Then, the fixture 22 is moved along the second horizontal direction to the position directly above the heating channel 31 by the transfer frame 21. Then, the transfer frame 21 is lowered relative to the slider 113 to insert the workpiece to be quenched into the heating channel 31 for heating. After heating, the heated workpiece to be quenched is first lifted by the transfer frame 21. After lifting, the workpiece to be quenched is moved by the transfer frame 21 to the position above the opening 41 and away from the heating channel 31. Then, the transfer frame 21 is lowered relative to the slider 113 to insert the workpiece to be quenched into the coolant in the cooling box 4 from the opening 41 for cooling. After cooling is completed, the quenching process of the workpiece to be quenched is completed. Then, the quenched workpiece is removed from the fixture 22.

[0044] Please combine Figure 1 and Figure 2 In one embodiment, the slider 113 includes a first connecting block 1131 and a second connecting block 1132 connected to each other. The first connecting block 1131 and the guide rod 111 are slidably connected, and the second connecting block 1132 is located on the working side. The transfer frame 21 includes a vertical rod 211, which is slidably connected to the second connecting block 1132. The clamp 22 is disposed at the bottom end of the vertical rod 211.

[0045] In this embodiment, the slider 113 is composed of a first connecting block 1131 and a second connecting block 1132 connected to each other. The second connecting block 1132 is located on the working side. When the first connecting block 1131 slides relative to the guide rod 111, the second connecting block 1132 and the vertical rod 211 slide synchronously along the guide rod 111. The vertical rod 211 can also slide vertically relative to the second connecting block 1132. That is, the vertical rod 211 moves left and right and moves up and down independently, which increases the operational flexibility of the entire transfer mechanism 2.

[0046] In one embodiment, the transfer frame 21 further includes an operating rod 212 extending vertically. The operating rod 212 is located on the side of the mounting frame 11 away from the working side. The operating rod 212 is connected to the vertical rod 211 through two limiting rods 213, and the two limiting rods 213 are located above and below the guide rod 111, respectively.

[0047] In this embodiment, by setting an operating lever 212 and connecting it to the vertical rod 211, the vertical rod 211 can be manually moved left and right and raised and lowered up and down using the operating lever 212. Furthermore, the two limiting rods 213 can limit the excessive raising and lowering of the vertical rod 211 to a certain extent, allowing the workpiece to be quenched, held on the fixture 22, to be accurately inserted into the heating channel 31 and the coolant, resulting in better reliability.

[0048] In another embodiment, a first cylinder can be installed on the guide rod 111, and the output shaft of the first cylinder is connected to the slider 113, thereby automatically driving the slider 113 to move along the second horizontal direction on the guide rod 111. In addition, a second cylinder can be installed at the bottom of the slider 113, the second cylinder is vertically installed and its output shaft is connected to the limiting rod 213 located below the guide rod 111, thereby driving the limiting rod 213 to rise and fall, further realizing the vertical rod 211 to rise and fall, thereby realizing the automated movement and lifting of the transfer mechanism 2, and further freeing up manual labor.

[0049] In one embodiment, one of the support rods 112 near the electromagnetic heating coil 3 is a first support rod 112a, and the other support rod 112 is a second support rod 112b. A limiting member 114 is provided on the side of the first support rod 112a, and a limiting hole 1141 is provided on the limiting member 114. A limiting pin 214 is also provided at the bottom of the limiting rod 213 located below the guide rod 111. The limiting pin 214 can be inserted into the limiting hole 1141 to limit the workpiece to be quenched held on the fixture 22 within the heating channel 31.

[0050] In this embodiment, the insertion and engagement of the limiting pin 214 and the limiting hole 1141 ensures that the workpiece to be quenched, which is clamped on the fixture 22, can be accurately positioned in the heating channel 31, ensuring that the workpiece is in the optimal position when electromagnetic induction heating is performed, thereby improving the uniformity and efficiency of heating, and thus improving the final quenching quality.

[0051] Understandably, when the fixture 22 is located directly above the heating channel 31, the limiting pin 214 is located directly above the limiting hole 1141. When the fixture 22 moves the workpiece to be quenched into the heating channel 31, the limiting pin 214 is inserted into the limiting hole 1141, thereby quickly and accurately limiting the workpiece to be quenched in the heating channel 31 to ensure stable heating and further improve the height position accuracy of the workpiece to be quenched.

[0052] In one embodiment, a pulley 115 is rotatably connected to the second support rod 112b, and a traction rope 116 is wound around the pulley 115. One end of the traction rope 116 is connected to the slider 113, and the other end of the traction rope 116 is connected to a counterweight 117, which is located on one side of the frame 1 along the second horizontal direction.

[0053] In this embodiment, by setting a counterweight 117, after the workpiece to be quenched is heated, the slider 113 is moved by the traction rope 116 under the gravity of the counterweight 117, thereby reducing the force required to manually move the slider 113 to slide and reset in the left and right directions using the operating rod 212. Furthermore, the connection between the traction rope 116 and the slider 113 does not interfere with the up and down movement of the vertical rod 211. In addition, the aforementioned limiting pin 214 and limiting hole 1141 can also ensure that the slider 113 is prevented from sliding to the left due to the gravity of the counterweight 117 when the workpiece to be quenched is heated.

[0054] Please see Figure 3 In one embodiment, a counterweight box 118 is provided on the side of the frame 1 along the second horizontal direction and close to the counterweight block 117. The counterweight box 118 forms a guide channel 1181 extending vertically, and the counterweight block 117 is suspended in the guide channel 1181.

[0055] In this embodiment, by setting a counterweight box 118, the counterweight box 118 forms a guide channel 1181, and the counterweight block 117 is suspended in the guide channel 1181, it can be ensured that the counterweight block 117 maintains linear motion during the up and down lifting process, reducing the swing and offset of the counterweight block 117, so as to avoid the counterweight block 117 colliding with the frame 1 or interfering with the operator.

[0056] In one embodiment, a water pump 42 and a cooling fan 43 are also provided on the top of the frame 1. A heat sink (not shown) is provided at the bottom of the cooling fan 43. The water inlet of the water pump 42 is connected to the cooling tank 4 through the water inlet pipe 44, and the water outlet of the water pump 42 is connected to the cooling tank 4 through the water outlet pipe 45. The water inlet pipe 44 and the water outlet pipe 45 pass through the bottom of the cooling fan 43 and are connected to the heat sink. The cooling fan 43 blows air toward the heat sink.

[0057] By setting up a cooling fan 43 and a water pump 42, the water pump 42 circulates the coolant in the cooling tank 4 through the inlet pipe 44 and the outlet pipe 45. Both the inlet pipe 44 and the outlet pipe 45 are connected to the heat sink below the cooling fan 43. The heat sink can further absorb the heat of the coolant, and the cooling fan 43 blows air towards the heat sink to remove the heat from the heat sink, thus achieving heat dissipation and ensuring that the coolant is kept at a suitable temperature, thereby better dissipating heat from the heated workpiece to be quenched.

[0058] In one embodiment, a protective box 119 is also provided on the top of the frame 1, and the protective box 119 is located on the working side away from the electromagnetic heating coil 3. The heat dissipation mechanism is provided inside the protective box 119, and an air inlet is provided on the top of the protective box 119 corresponding to the position of the cooling fan 43.

[0059] By setting up a protective box 119, the heat dissipation mechanism can be placed inside the protective box 119, which can effectively prevent dust and other impurities from entering these critical components and reduce the risk of equipment failure or performance degradation caused by external pollution. In particular, during the quenching process, when the heated workpiece enters the coolant, the steam and coolant splashing will be generated. The protective box 119 can prevent the steam and splashing coolant from affecting the heat dissipation mechanism and water pump 42, thus improving reliability.

[0060] In addition, the power supply and electromagnetic heating controller are also located inside the protective box 119.

[0061] In one embodiment, a surrounding plate 1191 is provided on the side of the protective box 119 near the mounting bracket 11. The surrounding plate 1191 forms an open-top mounting space 1192, and the electromagnetic heating coil 3 is disposed in the mounting space 1192.

[0062] By setting up the enclosure 1191, the enclosure 1191 can shield the alternating magnetic field generated by the electromagnetic heating coil 3 to a certain extent, reducing potential interference to external electronic equipment or operators. At the same time, it can also prevent external metal objects from accidentally approaching the coil, causing safety hazards; and the enclosure 1191 can also prevent steam and splashing coolant from affecting the electromagnetic heating coil 3, thus improving reliability.

[0063] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A quenching apparatus, characterized in that, include: A frame, wherein a mounting bracket is provided on the top of the frame, and one side of the mounting bracket along the first horizontal direction is the working side; The transfer mechanism includes a transfer frame and a clamp for holding the workpiece to be quenched. The transfer frame is mounted on the mounting frame and can move and rise vertically relative to the mounting frame in a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The clamp is mounted on the transfer frame and located on the working side. An electromagnetic heating coil is installed on the top of the frame and located on the working side. The electromagnetic heating coil forms a vertically arranged heating channel for the workpiece to be quenched, which is held by the fixture, to extend into. The electromagnetic heating coil is used to heat the workpiece to be quenched that extends into the heating channel. A cooling box is mounted on the frame and located on the working side. The top of the cooling box has an opening arranged along the second horizontal direction. The electromagnetic heating coil is located above the opening and on one side of the opening along the second horizontal direction. The cooling box contains coolant. The opening allows the heated workpiece to be quenched to be inserted into the coolant for cooling.

2. The quenching apparatus as described in claim 1, characterized in that, The mounting frame includes a guide rod and two support rods. The two support rods extend vertically and are spaced apart at the top of the frame along the second horizontal direction. The guide rod extends along the second horizontal direction and its two ends are respectively connected to the top of the two support rods. A slider is slidably connected to the guide rod, and the transfer frame is slidably connected to the slider. The slider and the transfer frame can move relative to the guide rod in the second horizontal direction, and the transfer frame can rise and fall vertically relative to the slider.

3. The quenching apparatus as described in claim 2, characterized in that, The slider includes a first connecting block and a second connecting block that are connected to each other. The first connecting block is slidably connected to the guide rod, and the second connecting block is located on the working side. The transfer frame includes a vertical rod, which is slidably connected to the second connecting block, and the clamp is disposed at the bottom end of the vertical rod.

4. The quenching apparatus as described in claim 3, characterized in that, The transfer frame also includes a vertically extending operating rod located on the side of the mounting frame away from the working side. The operating rod is connected to the vertical rod via two limiting rods, which are located above and below the guide rod, respectively.

5. The quenching apparatus as described in claim 4, characterized in that, One of the support rods near the electromagnetic heating coil is a first support rod, and the other support rod is a second support rod. A limiting member is provided on the side of the first support rod, and a limiting hole is provided on the limiting member. A limiting pin is also provided at the bottom of the limiting rod located below the guide rod; the limiting pin can be inserted into the limiting hole to limit the workpiece to be quenched, which is clamped on the fixture, to be confined within the heating channel.

6. The quenching apparatus as described in claim 5, characterized in that, A pulley is rotatably connected to the second support rod, and a traction rope is wound around the pulley. One end of the traction rope is connected to the slider, and the other end of the traction rope is connected to a counterweight, which is located on one side of the frame along the second horizontal direction.

7. The quenching apparatus as described in claim 6, characterized in that, The frame is further provided with a counterweight box along the second horizontal direction and on the side close to the counterweight block. The counterweight box forms a guide channel extending vertically, and the counterweight block is suspended in the guide channel.

8. The quenching apparatus according to any one of claims 1 to 7, characterized in that, The top of the frame is also equipped with a water pump and a cooling fan. The bottom of the cooling fan is equipped with a heat sink. The water inlet of the water pump is connected to the cooling tank through an inlet pipe, and the water outlet of the water pump is connected to the cooling tank through an outlet pipe. Both the inlet pipe and the outlet pipe pass through the bottom of the cooling fan and are connected to the heat sink. The cooling fan is used to blow air toward the heat sink.

9. The quenching apparatus as described in claim 8, characterized in that, The top of the frame is also provided with a protective box, which is located on the working side away from the electromagnetic heating coil. The water pump and the cooling fan are located inside the protective box, and the top of the protective box has an air inlet corresponding to the position of the cooling fan.

10. The quenching apparatus as described in claim 9, characterized in that, The protective box is also provided with a surrounding panel on the side near the mounting frame. The surrounding panel forms an open-top mounting space, and the electromagnetic heating coil is placed in the mounting space.

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