A quenching treatment device for high-hardness steel components

Abstract

This utility model relates to a quenching treatment device for high-hardness steel components. It includes: an input roller conveyor line, a quenching roller conveyor line, an output roller conveyor line, a shifting mechanism, and a local quenching mechanism. The shifting mechanism consists of a suspension, guide rails, a moving seat, a lever, a long-stroke cylinder, and a contact plate. The local quenching mechanism consists of a support column, a servo lifting module vertically mounted on the support column, a lifting platform, and a quenching hood connected to the lifting platform. The bottom of the quenching hood is exposed, and several spray heads are provided inside. The spray heads are connected to a quenching fluid supply system. The quenching hood has roller slots to avoid the rollers and component slots to avoid the steel components. This utility model can perform local quenching of steel components completely autonomously, with a high degree of automation and precise quenching.

Description

Technical Field

[0001] This utility model relates to a local quenching device, and more particularly to a quenching treatment device for high-hardness steel components. Background Technology

[0002] Localized hardening is a heat treatment technique that selectively heats specific areas of a workpiece and then rapidly cools them to achieve high hardness in the target area (typically forming a martensitic structure) while maintaining the original toughness and plasticity of other areas. This allows the part to meet the requirements for differentiated performance. Its core objective is to improve the hardness and wear resistance of critical areas while reducing the risk of overall deformation.

[0003] Steel components are widely used in applications such as building frame structures and equipment installation and positioning structures. Depending on the specific application, some steel components require specific areas with high hardness and wear resistance. Current processes typically address this by welding, riveting, or bolting a separate high-strength metal component to the corresponding area. However, this significantly increases the complexity of the production process and hinders efficiency. Localized hardening can precisely meet this need. However, currently, there is no automated equipment available for locally hardening steel components (especially long, rod-shaped ones). Summary of the Invention

[0004] This invention provides a quenching device for high-hardness steel components, solving the problem in the prior art that there is no corresponding automated equipment for local quenching of steel components.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a quenching treatment device for high-hardness steel components, comprising: an input roller conveyor line, a quenching roller conveyor line, an output roller conveyor line, a shifting mechanism, and a local quenching mechanism. The three conveyor lines are arranged at the same height. The input roller conveyor line is connected to the front end of the quenching roller conveyor line, and the output roller conveyor line is connected to the rear end of the quenching roller conveyor line. The input roller conveyor line and the output roller conveyor line are staggered. The shifting mechanism consists of a suspension fixed across the quenching roller conveyor line and a guide rail fixed horizontally on the suspension. The system comprises a movable seat slidably mounted on the guide rail, a lever mounted on the movable seat, a long-stroke cylinder that drives the movable seat to reciprocate, and an abutment plate fixed to one side of the quenching drum conveyor line. The cylinder rod of the long-stroke cylinder is generally connected to the movable seat by a ball joint. The local quenching mechanism consists of a support column, a servo lifting module vertically mounted on the support column, a lifting platform, and a quenching cover connected to the lifting platform. The bottom of the quenching cover is exposed, and several spray heads are provided inside. The spray heads are connected to a quenching liquid supply system. The quenching cover has a drum slot for avoiding the drum and a component slot for avoiding the steel components.

[0006] This invention uses an input roller conveyor to transport steel components to be quenched at fixed intervals into a quenching roller conveyor. After the components are in place, the quenching roller conveyor pauses operation. Then, a lever on the shifting mechanism pushes the steel component from one side of the quenching roller conveyor to the other side until the steel component abuts against the abutment plate. At this point, the part of the steel component to be quenched is directly below the quenching hood. The local quenching mechanism controls the quenching hood to descend until it completely covers the part of the steel component to be quenched. Then, the quenching liquid supply system activates the spray head to perform local quenching spraying on the steel component. The shifting mechanism resets the lever. After quenching is completed, the quenching hood is raised and reset, and the quenching roller conveyor restarts operation, transporting the steel component to the output roller conveyor.

[0007] Furthermore, the bottom of the movable seat is provided with a mounting plate, the length direction of which is perpendicular to the direction of the guide rail. Two shafts are rotatably mounted at the front and rear ends of the mounting plate, and the levers are fixed on the two shafts. A rotary cylinder is also provided on the mounting plate, with a drive wheel on the rotating shaft of the rotary cylinder and transmission wheels on the two shafts. A synchronous transmission belt connects the drive wheel and the two transmission wheels. Through the above solution, this invention can control the rotary cylinder to drive the two levers to rotate synchronously. When the invention needs to perform the process of pushing the steel component to move, the levers need to be set vertically downwards. When the movable seat moves in the reverse direction to reset, the levers need to be rotated to a near-horizontal position. This is because although the quenching roller conveyor line is paused at this time, the input roller conveyor line is still running, and the steel component on it may partially intrude into the quenching roller conveyor line. The above solution is to avoid collisions between the levers and the steel components. The synchronous transmission belt can be a synchronous belt or a chain belt.

[0008] Furthermore, a waste liquid tank is provided at the bottom of the quenching roller conveyor line and directly below the quenching hood. The waste liquid tank is connected to a return pipe, and a filter is provided on the return pipe. The waste liquid tank is used to receive quenching waste liquid from the quenching hood and collect it through the return pipe for reuse. The filter is used to remove impurities from the waste liquid.

[0009] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model can perform local quenching of steel components completely autonomously, with a high degree of automation and precise quenching effect. Attached Figure Description

[0010] Appendix Figure 1 This is a top view of the present invention;

[0011] Appendix Figure 2 This is a schematic diagram of the displacement mechanism;

[0012] Appendix Figure 3 This is a diagram showing the location distribution of the shifting mechanism and the two sets of local quenching mechanisms;

[0013] Appendix Figure 4 This is a schematic diagram of the local quenching mechanism;

[0014] Appendix Figure 5 This is a diagram showing the location distribution of the quenching hood and waste liquid tank. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 4 A quenching treatment device for high-hardness steel components includes: an input roller conveyor line 100, a quenching roller conveyor line 200, an output roller conveyor line 300, a shifting mechanism 400, and two sets of local quenching mechanisms 500. The two sets of local quenching mechanisms are located on both sides of the shifting mechanism 400. The three conveyor lines are set at the same height and have the same transmission speed. The front end of the input roller conveyor line is connected to the front end of the quenching roller conveyor line, and the rear end of the output roller conveyor line is connected to the rear end of the quenching roller conveyor line. The input roller conveyor line and the output roller conveyor line are staggered. The shifting mechanism is fixed across the quenching roller conveyor line. The system comprises a suspension 410, a guide rail 420 horizontally fixed to the suspension, a movable seat 430 slidably mounted on the guide rail, a lever 440 mounted on the movable seat, a long-stroke cylinder 450 driving the movable seat to reciprocate, and an abutment plate 460 fixed to one side of the quenching drum conveyor line. The cylinder rod of the long-stroke cylinder is connected to the movable seat by a ball joint connection. The local quenching mechanism consists of a support column 510, a servo lifting module 520 vertically mounted on the support column, a lifting platform 530, and a quenching cover 540 connected to the lifting platform. The bottom of the quenching cover is exposed, and several spray heads 550 are provided inside (see...). Figure 5 The spray head is connected to a quenching liquid supply system, and the quenching cover is provided with a roller slot 541 for avoiding the roller and a component slot 542 for avoiding the steel component.

[0018] See Figure 2 and Figure 3The bottom of the movable seat is equipped with a mounting plate 431, the length of which is perpendicular to the direction of the guide rail. Two shafts 441 are rotatably mounted on the front and rear ends of the mounting plate, with levers fixed on each shaft. A rotary cylinder 470 is also mounted on the mounting plate. A drive wheel 471 is mounted on the rotating shaft of the rotary cylinder, and transmission wheels 442 are mounted on the two shafts. A synchronous transmission belt 480 connects the drive wheel and the two transmission wheels. In this embodiment, the rotary cylinder can be controlled to drive the two levers to rotate synchronously. When the steel component needs to be moved, the levers need to be set vertically downwards. When the movable seat moves in the reverse direction to reset, the levers need to be rotated to a near-horizontal position. This is because although the quenching drum conveyor line is paused at this time, the input drum conveyor line is still running, and some steel components may intrude into the quenching drum conveyor line. The above solution is to avoid collisions between the levers and the steel components. The synchronous transmission belt is specifically a chain belt, and both the drive wheel and the transmission wheel are sprockets.

[0019] For details, see Figure 3 The mounting plate is also equipped with guide rollers 490, which are also connected to the synchronous drive belt. The function of the guide rollers is to change the path of the synchronous drive belt, thereby increasing the contact length between it and the drive pulley, thus enhancing the overload resistance of the drive pulley and preventing slippage.

[0020] See Figure 5 At the bottom of the quenching roller conveyor line and directly below the quenching hood, there is a waste liquid tank 560. The waste liquid tank is connected to a return pipe 561, and a filter 562 is installed on the return pipe. The waste liquid tank is used to receive quenching waste liquid from the quenching hood and collect it through the return pipe for reuse. The filter is used to remove impurities from the waste liquid.

[0021] For details, see Figure 1 and Figure 2 The input roller conveyor line is provided with a guide plate 110 and a guide groove 120. The rear end of the quenching roller conveyor line is also provided with a baffle 210. The baffle is directly opposite the guide groove and the rear end of the abutment plate is also provided with a proximity sensor 10.

[0022] In this embodiment, steel component 1 requires local quenching at both ends. In this embodiment, the steel component 1 to be quenched is transported to the quenching drum conveyor at fixed intervals via an input drum conveyor. Under the action of the guide plate, the steel component eventually abuts against the baffle, triggering the proximity sensor on it. The quenching drum conveyor pauses several times, and then a long-stroke cylinder extends in control, pushing the moving seat to the other side. The lever on the shifting mechanism can push the steel component from one side of the quenching drum conveyor to the other side until the steel component abuts against the abutment plate. At this point, the part of the steel component to be quenched is exactly located in front of the quenching hood. Below, the local quenching mechanism controls the quenching hood to descend until it completely covers the area of ​​the steel component to be quenched. Then, the quenching fluid supply system activates the spray heads to perform local quenching spraying on the steel component. The spraying time can be freely controlled. Simultaneously, the long-stroke cylinder on the shifting mechanism retracts under control, and the rotary cylinder rotates under control, driving the lever to deflect to one side until the moving seat is fully reset. Then, the rotary cylinder rotates in the opposite direction under control, allowing the lever to return to the vertical downward position. After quenching is completed, the quenching hood rises and resets, and the quenching roller conveyor line restarts, transporting the steel component to the output roller conveyor line. The proximity sensor at the rear end of the contact plate is used to detect whether the steel component has completely left the quenching roller conveyor line. Only when it detects that the quenched steel component has completely left, and the proximity sensor on the baffle detects that a new steel component has arrived, will the quenching roller conveyor line be triggered to pause.

[0023] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A high hardness steel member quenching device characterized by comprising: include: The system comprises an input roller conveyor, a quenching roller conveyor, an output roller conveyor, a shifting mechanism, and a local quenching mechanism. The three conveyor lines are set at equal heights. The input roller conveyor is connected to the front end of the quenching roller conveyor, and the output roller conveyor is connected to the rear end of the quenching roller conveyor. The input and output roller conveyors are staggered. The shifting mechanism consists of a suspension fixed across the quenching roller conveyor, a guide rail fixed horizontally to the suspension, a movable seat slidably mounted on the guide rail, a lever on the movable seat, a long-stroke cylinder driving the movable seat to reciprocate, and an abutment plate fixed to one side of the quenching roller conveyor. The local quenching mechanism consists of a support column, a servo lifting module vertically mounted on the support column, a lifting platform, and a quenching cover connected to the lifting platform. The bottom of the quenching cover is exposed, and it contains several spray heads connected to a quenching liquid supply system. The quenching cover has roller slots for avoiding rollers and component slots for avoiding steel components.

2. The high-hardness steel member quenching apparatus according to claim 1, characterized by: The bottom of the movable seat is provided with a mounting plate, the length direction of the mounting plate is perpendicular to the direction of the guide rail, and two shafts are rotatably provided at the front and rear ends of the mounting plate. The lever is fixed on the two shafts. The mounting plate is also provided with a rotary cylinder. The rotary cylinder has a drive wheel on its rotating shaft and transmission wheels on the two shafts. A synchronous transmission belt connects the drive wheel and the two transmission wheels.

3. The high-hardness steel member quenching apparatus according to claim 2, characterized by: The mounting plate is also provided with guide wheels, which are also connected to the synchronous transmission belt.

4. The high-hardness steel member quenching apparatus according to claim 1, characterized by: At the bottom of the quenching roller conveyor line and directly below the quenching cover, there is a waste liquid tank. The waste liquid tank is connected to a return pipe, and a filter is installed on the return pipe.

5. The apparatus for quenching a high-hardness steel member according to claim 1, characterized by: The input roller conveyor line is provided with a guide plate and a guide groove. The rear end of the quenching roller conveyor line is also provided with a baffle. The baffle is positioned opposite the guide groove, and the rear end of the abutment plate is also provided with a proximity sensor.

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