Induction heating device for deep groove of end cover

Abstract

The utility model discloses an induction heating device for an end cover deep groove, which comprises a power connection plate, a confluence plate, a fixing plate, a heating device, a water spraying device and an air blowing device, one end of the fixing plate is connected with the power connection plate through the confluence plate, the other end of the fixing plate is connected with the water spraying device and the air blowing device, and the heating device is connected with the confluence plate. The heating device is used for heating end cover deep groove parts; blowing holes of the blowing device correspond to the tail end of the heating device, and water spraying holes of the water spraying device correspond to the heating device. The induction heating device for the deep groove of the end cover, provided by the utility model, is suitable for carrying out heat treatment on the deep groove, is fixed by arranging the base, can be directly used for clamping and positioning a quench machining tool, and improves the operation efficiency.

Description

Technical Field

[0001] The utility model relates to the field of heat treatment, in particular to an induction heating device for deep grooves of end covers. Background Art

[0002] Powder metallurgy (PM), an advanced manufacturing technology, boasts advantages such as material conservation, low energy consumption, lightweight construction, and high efficiency, and is increasingly being used in the automotive industry. This leading technology, through the forming and sintering of metal powders (or mixtures of metal and non-metallic powders), is used to manufacture a variety of metal materials, composite materials, and components. This significantly reduces vehicle production costs and improves production efficiency, making it a key tool for cost reduction, efficiency improvement, and lightweighting in the automotive industry. Consequently, PM materials are widely used in automotive parts.

[0003] However, due to the particularity of the powder metallurgy manufacturing process, there are many small gaps in the matrix of the parts, which are prone to cracking during quenching, and it is difficult to form a continuous hardened zone at the bottom of the deep groove of the parts. For the end cap, the end cap material structure has pores, and the hardened layer at the root of the deep groove is likely to be shallow, and the transition layer is too close to the bottom of the deep groove. In other words, the tensile stress and compressive stress in the transition zone are too close to the bottom of the deep groove, causing surface cracks. Cracks may also occur in the transition zone, and the deep groove is difficult to heat evenly. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is that the powder metallurgy-made end cap material has pores in its structure, the hardened layer at the root of the deep groove is easily shallow, the tensile stress and compressive stress are too close to the bottom of the deep groove in the transition zone, causing surface cracks, and cracks may also occur in the transition zone. In addition, the deep groove is difficult to heat evenly. The present invention provides an induction heating device for the deep groove of the end cap, which is suitable for heat treatment of the deep groove. It is provided with a fixed base and can be directly used for clamping and positioning of the quenching machine tool, thereby improving operating efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides an induction heating device for the deep groove of the end cover, comprising a power connection plate, a busbar, a fixing plate, a heating device, a water spraying device and an air blowing device. One end of the fixing plate is connected to the power connection plate through the busbar, and the other end of the fixing plate is connected to the water spraying device and the air blowing device. The heating device is connected to the busbar and is used for heating the deep groove of the end cover; the air blowing hole of the air blowing device corresponds to the tail end of the heating device, and the water spraying hole of the water spraying device corresponds to the heating device.

[0006] Furthermore, the heating device includes an induction heating head, which is configured to be wound by an induction coil.

[0007] Furthermore, the induction heating head is configured to be wound with copper wire for generating an alternating magnetic field.

[0008] Furthermore, the heating device also includes a magnetic conductor, which is arranged inside the induction coil.

[0009] Furthermore, the blowing hole at one end of the blowing device corresponds to the tail end of the heating device, and the other end is connected to the external blowing device, and the blowing device is fixed by a fixing plate.

[0010] Furthermore, the water spray hole at one end of the water spray device corresponds to the tail end of the heating device, and the other end is connected to the water inlet device.

[0011] Furthermore, the fixed plate includes a first section and a second section, one end of the first section is fixedly connected to the busbar, and the other end of the first section is rotatably connected to one end of the second section; the second section is non-linear.

[0012] Furthermore, the second section of the fixing plate is configured to clamp the water spraying device.

[0013] Furthermore, the induction coil is connected to the busbar and the power board through a connecting pipe. The induction coil and the connecting pipe are hollow structures for water cooling.

[0014] Technical Effects

[0015] The utility model discloses an induction heating device for deep grooves of end covers, which is suitable for heat treatment of deep grooves, so that the deep grooves are evenly induction heated. At the same time, an air blowing pipe is added to ensure that the parts are kept dry before heating, thereby ensuring that the deep grooves are heated evenly, forming continuous hardening, and can be fully cooled to avoid the generation of cracks. At the same time, a position for placing the workpiece (workpiece clamp) is set on the machine tool, so that the inductor does not contact the workpiece during the working movement process, and can be directly used for clamping and positioning of the quenching machine tool, thereby improving operating efficiency.

[0016] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an induction heating device for a deep groove of an end cover according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the following description, specific details such as specific internal procedures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0020] like Figure 1 As shown, an embodiment of the present invention provides an induction heating device for a deep groove of an end cover, comprising a power connection plate 1, a busbar 2, a fixing plate 3, a heating device 5, a water spraying device 7 and an air blowing device 6. One end of the fixing plate 3 is connected to the power connection plate 1 through the busbar 2, and the other end of the fixing plate 3 is connected to the water spraying device 7 and the air blowing device 6. The heating device is connected to the busbar and is used for heating the deep groove portion of the end cover; the air blowing hole of the air blowing device corresponds to the tail end of the heating device to ensure that the air is blown in the deep groove portion of the end cover, and the water spraying hole of the water spraying device corresponds to the heating device.

[0021] The heating device 5 includes an induction heating head 5-1, which is configured to be wound with an induction coil. In this embodiment, the induction heating head is configured to be wound with copper wire and is used to generate an alternating magnetic field, which can heat the inner wall of the part under the action of the proximity effect.

[0022] The heating device further includes a magnetic conductor 5-2, which is disposed inside the induction coil. The magnetic conductor can effectively guide magnetic lines of force and enhance the magnetic field strength, thereby improving heating efficiency.

[0023] The blowing hole at one end of the blowing device corresponds to the rear end of the heating device, and the other end is connected to an external blowing device, which is fixed by a fixing plate. In this embodiment, the blowing device is a blowing pipe, which is used to dry out residual or dripping moisture on the quenched parts before quenching, keeping the parts dry and ensuring uniform heating of the deep grooves.

[0024] The water spray hole at one end of the water spray device corresponds to the tail end of the heating device, and the other end is connected to the water inlet device. In this embodiment, the water spray device is a water sprinkler, which is used to spray cooling medium to quickly reduce the temperature of the workpiece and ensure an effective quenching process.

[0025] The fixed plate consists of a first section and a second section. One end of the first section is fixedly connected to the manifold, and the other end is rotatably connected to one end of the second section. The second section is non-linear. The fixed plate stabilizes the structure and positions the workpiece. The manifold secures the sensor's power strip, preventing any misalignment or deformation while also enhancing the strength of the sensor. The second section of the fixed plate is designed to clamp a water spray device, which can adjust the distance between the sensor and the device.

[0026] In another preferred embodiment of the present invention, the induction coil is connected to the busbar and the power board through a connecting pipe. The induction coil and the connecting pipe are hollow structures for cooling the induction coil with water to prevent the induction coil from burning due to excessive current.

[0027] The utility model is an induction heating device for deep grooves of end covers. After the device and the workpiece fixture are fixed, the operator places the workpiece to be heat treated on the workpiece fixture, then presses a button to start, and the material can be taken out after the quenching is completed. During quenching, heating is first performed, and then water is sprayed for cooling. After the next workpiece is installed on the fixture, a few drops of cooling water after the previous workpiece is heated will drip, causing water to accumulate in the deep groove of the next workpiece. Therefore, the utility model is an induction heating device for deep grooves of end covers. Before heating, compressed air is first used to blow dry the water droplets in the working deep groove using an air blow pipe to keep the parts dry. The heating device is then used for heating. After heating, the water spray device and the connecting pipe of the induction coil are used for water cooling to complete the quenching.

[0028] Blowing away moisture before heating keeps the parts dry, ensuring even heating of the deep grooves, continuous hardening, and sufficient cooling to prevent cracking. Furthermore, blowing away moisture ensures uniform heating of the parts during the minimal induction hardening process, ensuring uniform microstructure and hardness across the quenched area. This significantly reduces workpiece deformation and improves the strength, hardness, and service life of the powder end caps. Furthermore, the use of an air blowpipe reduces the need to manually blow away any residual moisture in the parts, improving production efficiency.

[0029] The utility model discloses an induction heating device for end cover deep grooves, which is suitable for induction heat treatment of end cover materials or parts where water easily accumulates in the deep grooves.

[0030] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. An induction heating device for deep grooves in end caps, characterized in that: It includes a power connection plate, a busbar, a fixing plate, a heating device, a water spraying device and an air blowing device. One end of the fixing plate is connected to the power connection plate through the busbar, and the other end of the fixing plate is connected to the water spraying device and the air blowing device. The heating device is connected to the busbar and is used to heat the deep groove part of the end cover; the air blowing hole of the air blowing device corresponds to the tail end of the heating device, and the water spraying hole of the water spraying device corresponds to the heating device.

2. The induction heating device for deep grooves of end caps according to claim 1, characterized in that: The heating device comprises an induction heating head, and the induction heating head is configured to be wound by an induction coil.

3. The induction heating device for deep grooves of end caps according to claim 2, characterized in that: The induction heating head is configured to be wound with copper wire and is used to generate an alternating magnetic field.

4. The induction heating device for deep grooves of end caps according to claim 2, characterized in that: The heating device further includes a magnetic conductor, which is arranged inside the induction coil.

5. The induction heating device for deep grooves in end caps according to claim 1, characterized in that: The blowing hole at one end of the blowing device corresponds to the tail end of the heating device, and the other end is connected to an external blowing device. The blowing device is fixed by the fixing plate.

6. The induction heating device for deep grooves in end caps according to claim 1, characterized in that: The water spray hole at one end of the water spray device corresponds to the tail end of the heating device, and the other end is connected to the water inlet device.

7. The induction heating device for deep grooves in end caps according to claim 1, characterized in that: The fixed plate includes a first section and a second section, one end of the first section is fixedly connected to the busbar, and the other end of the first section is rotatably connected to one end of the second section; the second section is non-linear.

8. The induction heating device for deep grooves in end caps according to claim 7, characterized in that: The second section of the fixing plate is configured to clamp the water spraying device.

9. The induction heating device for deep grooves in end caps according to claim 4, characterized in that: The induction coil is connected to the busbar and the power board via a connecting pipe. The induction coil and the connecting pipe are hollow structures for water cooling.

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