Segmented local heating device for automobile half axle spline machining

Abstract

The invention relates to a segmented local heating device for automobile half shaft spline machining, which comprises a main frame, an inclined plane halfpace is arranged on the main frame, and an inclined support and the inclined side face of the inclined plane halfpace are consistent in inclination angle and are in a coplanar state; the power supply module is used for supplying power; the induction heating mechanism comprises a detachable heat preservation cylinder and a detachable induction heating coil; the heat preservation cylinder is used for containing a target half shaft head during heating, and the induction heating coil heats a spline of the target half shaft head during power supply; the feeding mechanism comprises a feeding groove and a pushing unit; the feeding groove is obliquely arranged and used for placing a target half shaft, and when the target half shaft is placed on the feeding groove, the target half shaft is coaxial with the heat preservation cylinder; the pushing unit is used for pushing the target half shaft so that a spline on the head of the target half shaft can be located in the heat preservation barrel. The technical problems that in the automobile half shaft heating process, the automation degree is low, the heating position is difficult to adjust, adaptability is insufficient, heating efficiency is low, and heating quality is poor are solved.

Description

Technical Field

[0001] The present application relates to the technical field of heat treatment of automobile half-axles, and in particular to a segmented local heating device for processing automobile half-axle splines. Background Art

[0002] Automotive axles are crucial components that transmit transmission power to the drive wheels. Due to the complex and ever-changing driving environment, the requirements for axles are stringent. To improve their performance, quality, and service life, forging and carburizing processes are often used in the spline areas of these axles. The forging process involves forging and upsetting the ends of the axle steel parts to create a thicker end. The ends are then milled to create the splines. During forging and upsetting, the ends are typically heated locally to improve forging efficiency and quality. Carburizing involves austenitizing the surface of the steel part through high-frequency quenching, followed by rapid cooling to produce a martensitic structure, resulting in a high-hardness, wear-resistant layer. Tempering is then performed to achieve high fatigue strength. However, high-frequency quenching only hardens the surface, not the deepest hardening. Therefore, low-temperature heating of the spline areas is required to induce a phase transformation within the workpiece, achieving a hardened effect throughout the entire part. In the manufacturing and maintenance process of automobiles, heat treatment of the half-shaft spline head is a crucial link.

[0003] Traditional heating methods typically heat the entire axle, rather than localizing it. This overall heating method not only consumes a large amount of energy, but also can cause changes in material properties due to uneven temperature distribution, which in turn affects the overall strength and service life of the axle. Excessive heating can also cause unnecessary deformation or stress in parts that do not require heating, increasing the workload for subsequent processing corrections. Traditional heating methods often use direct flame heating or resistance heating, both of which are slow to heat up and cannot quickly reach the required temperature conditions. Currently, some low-temperature localized heating technologies have emerged on the market, but they also have corresponding problems.

[0004] Chinese utility model patent publication number CN213086026U discloses a stress relief annealing device for automobile half-shaft splines, which includes: a workbench, a support seat, a rotating mechanism and a heating mechanism; the support seat is arranged in the front center of the workbench, and is used to support and place the automobile half-shaft to be processed; the rotating mechanism is arranged on the workbench, and is used to drive the automobile half-shaft to rotate coaxially; the heating mechanism heats the part of the automobile half-shaft to be heated; the heating mechanism includes a heating device and a heating coil, and the spiral heating coil through which the automobile half-shaft passes is connected to the heating device and heated by it. The annealing device has a simple structure and can be used for the stress relief annealing process production of half-shaft products. However, the annealing equipment has the following disadvantages: 1. The equipment cannot realize the functions of automatic feeding and returning; 2. When the equipment heats the target semi-axle product, the heating position of the target semi-axle cannot be adjusted arbitrarily or conveniently; 3. The induction heating coil of the equipment cannot be replaced quickly and cannot adapt to semi-axle products of different specifications; 4. When the semi-axle product of the equipment is heated, it cannot protect heat, which accelerates heat loss and causes uneven temperature distribution due to the rapid heat loss, resulting in energy waste and poor heat treatment effect. Summary of the Invention

[0005] This application mainly solves the technical problems of low automation, difficult adjustment of heating position, insufficient adaptability, low heating efficiency and poor heating quality in the heating process of the head of automobile half-axle products.

[0006] In an embodiment of the present application, a segmented local heating device for machining a half-shaft spline of an automobile is provided, which is used to locally heat the head of a target half-shaft. The segmented local heating device for machining a half-shaft spline of an automobile comprises: A main frame, wherein an oblique bracket is provided on the side of the main frame, and an inclined step is provided on the top of the main frame, wherein the oblique side surfaces of the oblique bracket and the inclined step have the same inclination angle and are in a coplanar state; A power supply module, which is arranged on the main frame and is used for supplying power; The induction heating mechanism comprises an inclined base plate, a lifting and adjusting mechanism, a heating box, at least one insulation cylinder and at least one induction heating coil; the inclined base plate is fixedly inclined along the inclined platform, the lifting and adjusting structure and the heating box are fixedly arranged on the inclined base plate from top to bottom, the induction heating coil is detachably connected to the lifting and adjusting mechanism, and the insulation cylinder is detachably arranged in the heating box; the induction heating coil is electrically connected to the power supply module, and when the power supply module supplies power to the induction heating coil, the induction heating coil heats the target semi-shaft inside the induction coil based on electromagnetic induction; a heating hole is provided in the insulation cylinder, and the heating hole is used to accommodate the target semi-shaft head and the induction heating coil when locally heating the target semi-shaft head, and the lifting and adjusting mechanism is used to change the heated position of the target semi-shaft by adjusting the position of the induction heating coil in the insulation cylinder; At least one feeding mechanism, at least one of the feeding mechanisms is arranged parallel to each other on the oblique side surface of the oblique bracket, and includes a feeding trough and a pushing unit; the feeding trough is arranged obliquely for placing the target semi-shaft; the pushing unit is arranged at the bottom end of the feeding trough, and is used to push the target semi-shaft so that the head of the target semi-shaft is located in the heating hole of the insulation cylinder; The inner diameter of the heating hole of the heat preservation cylinder is larger than the outer diameter of the induction heating coil, and the inner diameter of the induction heating coil is larger than the outer diameter of the spline of the target half-shaft head; The heat preservation cylinder, the induction heating coil and the feeding mechanism all correspond to each other one by one.

[0007] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred solution, the lifting and adjusting mechanism includes an oblique mounting plate, a wheel disc unit and two first slide rail units; The inclined mounting plate is parallel to the inclined base plate, and the wheel unit and the two first slide rail units are arranged between the inclined mounting plate and the inclined base plate; The wheel disc unit includes a wheel disc, a bearing seat, a screw and a screw sleeve. There are two bearing seats, both of which are fixedly arranged on the inclined base plate. The wheel disc is fixedly connected to the screw. The screw sleeve is fixedly arranged on the inclined mounting plate. The screw passes through the two bearing seats respectively and is rotatably connected to the two bearing seats. The screw is threadedly connected to the screw sleeve. The screw sleeve, the wheel disc, the screw, the screw sleeve and the two bearing seats are coaxially arranged. The first slide rail unit includes a first rail and a first slider. The first rail is fixedly arranged on the inclined base plate. The first slider is fixedly arranged on the inclined mounting plate. The first rail is arranged parallel to the screw rod. The first rail is slidably connected to the first slider.

[0008] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the power supply module includes an external terminal, which is arranged on the upper surface of the inclined step platform; the end of the induction heating coil is provided with a coil sleeve, and the external terminal is electrically connected to the coil sleeve through a cable; An insulating bracket is provided on the oblique mounting plate. A buckle and a fastening nut are provided on the insulating bracket. The insulating bracket can detachably mount the coil sleeve via the buckle and the fastening nut.

[0009] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the heat preservation cylinder includes a cylinder body and ridges, and the ridges are arranged on the side wall of the cylinder body and are integrally connected to the cylinder body; The heating hole is provided in the barrel and passes through the barrel, and the ridge is provided with a wiring groove with an upper end open and a lower end closed, the wiring groove being in communication with the heating hole; the wiring groove is used to accommodate the input and output wires of the induction heating coil; The center line of the bottom of the wiring groove, the axis of the heating hole and the axis of the barrel are coplanar.

[0010] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the heating box includes a heating box cover and a heating box body, and the heating box cover is detachably connected to the heating box body; The heating box cover is provided with at least one top hole, and the bottom of the heating box body is provided with at least one bottom hole; the top hole, the bottom hole, the insulation cylinder, the induction heating coil and the feeding mechanism are all in one-to-one correspondence; The top hole position includes a top mounting hole and a top positioning hole, the top mounting hole is a circular through hole shape, used to install the top of the barrel body, and the top positioning hole is a rectangular through hole shape, used to install the top of the convex ridge; the bottom hole position includes a bottom mounting hole and a bottom positioning groove, the bottom mounting hole is a circular through hole shape, used to install the bottom of the barrel body, and the bottom positioning groove is a rectangular countersunk hole shape, used to install the bottom of the convex ridge.

[0011] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the heating box cover is divided into a first box cover and a second box cover which are independent of each other, and the heating box body is divided into a first box body and a second box body, the first box cover corresponds to the first box body, and the second box cover corresponds to the second box body; The insulation cylinder is integrally cast; the insulation cylinder has at least two specifications, and the inner diameters of the heating holes of the insulation cylinders of different specifications are different, and the outer diameters of the insulation cylinders of different specifications are the same; the induction heating coil has at least two different specifications, and the outer diameters of the induction heating coils of different specifications are different; each specification of the insulation cylinder corresponds to at least one specification of the induction heating coil; The specifications of the heat preservation cylinders in the first box body and the second box body are the same or different.

[0012] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the feeding mechanism is installed on the oblique side surface of the oblique body bracket through a feeding base plate; Two symmetrically arranged channel steel bases are fixedly provided on the feed base plate, and the feed trough and the pushing unit are both installed on the two channel steel bases.

[0013] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the feeding mechanism includes a feeding push rod, a chain transmission unit and a second slide rail unit; The feed trough includes two fixed trough plates and a movable trough plate that are obliquely symmetrically arranged, a gap is provided between the fixed trough plate and the movable trough plate, one end of the feed push rod passes through the gap between the two trough plates, and the other end is connected to the second slide rail unit; the fixed trough plate and the movable trough plate are respectively installed on the two channel steel bases through a fixed bracket and a material moving bracket; The second slide rail unit includes two second slide rails and two second sliders, the two second slide rails are parallel to the feed trough and are respectively fixedly arranged on the two channel steel bases, the two second sliders are respectively slidably connected to the two second slide rails, the upper ends of the two second sliders are fixedly connected by a connecting plate, the feed push rod is installed above the connecting plate, and the lower side of the connecting plate is connected to the chain transmission unit through a driving arm; The chain transmission unit includes a feed motor, a feed chain, a driving sprocket and a driven sprocket. A motor mounting plate is fixedly provided on the side of the channel steel base. The feed motor is mounted on the motor mounting plate. The driving sprocket and the driven sprocket are both located between the two channel steel bases. The output end of the feed motor is connected to the driving sprocket, and the driving sprocket and the driven sprocket are connected via a feed chain. The lower end of the driving arm is provided with a chain clamping plate, and the chain clamping plate is detachably clamped on the feeding chain.

[0014] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the feeding mechanism further includes a material moving unit and a storage unit, and the angle between the fixed groove plate and the movable groove plate is a right angle or an obtuse angle less than 120°; The material moving unit includes a material moving cylinder and at least two sliding shafts, the material moving cylinder and the at least two sliding shafts are installed on the material moving bracket, the cylinder body of the material moving cylinder is fixedly connected to the material moving bracket, the end of the piston rod is connected to the movable groove plate, the two sliding shafts are slidably connected to the material moving bracket, and one end of the two sliding shafts is connected to the material moving bracket and the other end is freely set; the two sliding shafts are parallel to the piston rod of the material moving cylinder; The storage unit includes a front support plate, a rear support plate and a rear baffle, wherein the front support plate, the rear support plate and the rear baffle are all fixedly connected to a fixed bracket, the front support plate and the rear support plate are both located on the outer side of the fixed groove plate, and the inner sides of the front support plate and the rear support plate are lower than the upper edge of the fixed groove plate, and the outer sides of the front support plate and the rear support plate are bent in an upward arc; the rear baffle is located at the lower end surface of the rear support plate, and the upper edge of the rear baffle is higher than the upper edges of the rear support plate and the fixed groove plate; A gap is provided between the front supporting plate and the rear supporting plate.

[0015] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, an adjustment unit is provided below the upper end of the feed chute, and the adjustment unit is used to adjust the position of the target half-shaft on the feed chute so that the upper end of the target half-shaft is aligned with the heating hole of the insulation cylinder, and the adjustment unit includes an adjustment roller, an adjustment screw and an adjustment base; The regulating roller is in contact with the feed trough; The adjusting base is fixedly mounted on the feeding base plate; An adjusting screw is provided between the adjusting roller and the adjusting base, and the adjusting screw is connected to the adjusting roller and the adjusting base via threads.

[0016] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the segmented local heating device for automobile half-shaft spline processing further includes a furnace body and a power distribution cabinet; The power supply module further includes a 300KW medium frequency power supply, a capacitor and a busbar, wherein the 300KW medium frequency power supply is used to connect an external power supply line, the 300KW medium frequency power supply, the capacitor and the busbar are electrically connected in sequence, and the busbar is electrically connected to the induction heating coil; The 300KW medium frequency power supply is arranged in the power distribution cabinet; the capacitor and the busbar are arranged in the furnace body. According to the segmented local heating device for automobile half-shaft spline processing of the above embodiment, by setting the main frame and its bevel bracket and inclined ladder, the entire device structure is stable and can ensure that the insulation cylinder and the target half-shaft maintain precise coaxiality, thereby bringing a more accurate positioning effect and avoiding the problem of uneven heating or failure due to poor alignment; by adopting the power supply module to directly power the induction heating mechanism and placing the induction heating coil in the insulation cylinder, it is ensured that there is enough space between the coil and the half-shaft during the heating process to maintain a stable magnetic field, thereby ensuring the uniformity and consistency of heating, and when the power supply module is powered, the half-shaft spline in the insulation cylinder can be quickly and evenly heated locally, which not only improves the heating efficiency, but also because it is a local heating Heat is generated, energy consumption is reduced, and the risk of deformation in the non-heating area is reduced; with the inclined working surface of the iterative bracket and the inclined ladder, combined with the design of the inclined feed trough and the pushing unit on the feeding mechanism, the target semi-axis can be automatically and smoothly advanced, and automatic feeding and discharging can be realized, thereby improving the degree of automation; the insulation cylinder and the induction heating coil are both detachable, and a set of insulation cylinders and induction heating coils of various specifications are provided, which can improve the adaptability of the device of the present application, and at the same time, insulation cylinders of different specifications can be used with the heating box; and the insulation cylinder can perform temperature protection on the heating part of the target semi-axis when the target semi-axis is induction heated, so that the temperature distribution of the target semi-axis is uniform, thereby improving the heating effect and heat treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic front view of the structure of a segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application; Figure 2 Schematic diagram of the overall structure of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (I); Figure 3 Schematic diagram of the overall structure of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (II); Figure 4 Schematic diagram of the overall structure of the feeding mechanism of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (I); Figure 5 Schematic diagram of the overall structure of the feeding mechanism of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (II); Figure 6 Schematic diagram of the overall structure of the feeding mechanism of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (III); Figure 7Schematic diagram of the overall structure of the induction heating mechanism of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (I); Figure 8 Schematic diagram of the overall structure of the induction heating mechanism of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application (II); Figure 9 A schematic diagram of the overall structure of a heating box cover of a segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application; Figure 10 This is a schematic diagram of the overall structure of a heating box of a segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application; Figure 11 A schematic diagram of the overall structure of the insulation cylinder of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application; Figure 12 This is a schematic diagram of the overall structure of the insulation cylinder of the segmented local heating device for automobile half-shaft spline processing provided in an embodiment of the present application after being cut open.

[0018] In the picture: 1. Power distribution cabinet; 101. Ladder; 102. Platform; 103. Railing; 104. First cabinet door; 2. Furnace body; 201. Water channel; 202. Capacitor; 203. Busbar; 204. Second cabinet door; 3. Italic bracket; 4. Inclined platform; 401. External terminal; 5. Induction heating mechanism; 501. Induction heating coil; 502. Coil casing; 503. Cable; 504. Heating box cover; 5041. First box cover; 5042. Second box cover; 505. Heating box body; 5051. First box body; 5052. Second box body; 506. Wheel; 507. Inclined base plate; 508. First track; 509. First slider; 510. Inclined mounting plate; 511. Insulating bracket; 512. Bearing seat; 513. Screw; 514. Buckle; 515. Fastening nut; 516. Top mounting hole; 517. Top positioning hole; 518. Bottom mounting hole; 519. Bottom positioning slot; 6. Feed mechanism; 601. Feed bracket; 6011. Fixed bracket; 6012. Transfer bracket; 602. Feed trough; 6021. Fixed trough plate; 6022. Transfer trough plate; 603. Adjusting roller; 604. Adjusting screw; 605. Adjusting base; 606. Second track; 608. Second slider; 609. Driving sprocket; 610. Feed chain; 611. Driven sprocket; 612. Feed base plate; 614. Front support plate; 615. Rear support plate; 616. Rear baffle; 617. Channel steel base; 618. Motor mounting plate; 619. Feed motor; 620. Connecting plate; 621. Feed push rod; 622. Driving arm; 623. Cylinder bracket; 624. Transfer cylinder; 625. Sliding shaft; 626. Chain clamp; 7. Target half-shaft; 701. Half-shaft to be heated; 702. Heated half-shaft; 8. Insulation cylinder; 801. Cylinder body; 802. Ridge; 803. Heating hole; 804. Wire trough. DETAILED DESCRIPTION

[0019] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0020] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0021] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0022] Please refer to Figure 1 、 Figure 2and Figure 3 In order to solve the technical problems of low automation, difficult adjustment of heating position, insufficient adaptability, low heating efficiency and poor heating quality in the heating process of the head of automobile half-shaft products, a segmented local heating device for automobile half-shaft spline processing is provided in an embodiment of the present application, which is used to locally heat the head of the target half-shaft 7. The segmented local heating device for automobile half-shaft spline processing includes a main frame, a power supply module, an induction heating mechanism 5 and at least one feeding mechanism 6, which are described in detail below.

[0023] The main frame has an italic bracket 3 on its side and an inclined platform 4 on its top. The inclined sides of the italic bracket 3 and the inclined platform 4 have the same inclination angle and are in a coplanar state.

[0024] The power supply module is set on the main frame and is used for power supply.

[0025] The induction heating mechanism 5 includes an inclined base plate 507, a lifting and adjusting mechanism, a heating box, at least one insulation tube 8 and at least one induction heating coil 501; the inclined base plate 507 is fixedly inclined along the inclined platform 4, the lifting and adjusting structure and the heating box are fixedly arranged on the inclined base plate 507 from top to bottom, the induction heating coil 501 is detachably connected to the lifting and adjusting mechanism, and the insulation tube 8 is detachably arranged in the heating box; the induction heating coil 501 is electrically connected to the power supply module, and when the power supply module supplies power to the induction heating coil 501, the induction heating coil 501 heats the target semi-axis 7 inside the induction coil based on electromagnetic induction; a heating hole 803 is provided in the insulation tube 8, and the heating hole 803 is used to accommodate the head of the target semi-axis 7 and the induction heating coil 501 when locally heating the head of the target semi-axis 7, and the lifting and adjusting mechanism is used to change the heated position of the target semi-axis 7 by adjusting the position of the induction heating coil 501 in the insulation tube 8.

[0026] At least one feeding mechanism 6 is arranged parallel to each other on the oblique side surface of the oblique bracket 3, including a feeding trough 602 and a pushing unit; the feeding trough 602 is arranged obliquely for placing the target semi-shaft 7; the pushing unit is arranged at the bottom end of the feeding trough 602, for pushing the target semi-shaft 7 so that the head of the target semi-shaft 7 is in the heating hole 803 of the insulation cylinder 8.

[0027] Among them, the inner diameter of the heating hole 803 of the insulation tube 8 is larger than the outer diameter of the induction heating coil 501, and the inner diameter of the induction heating coil 501 is larger than the outer diameter of the head spline of the target half shaft 7; the insulation tube 8, the induction heating coil 501 and the feeding mechanism 6 are all in one-to-one correspondence.

[0028] In some embodiments, the inner diameter of the heating hole 803 is larger than the outer diameter of the induction heating coil 501, which in turn is larger than the outer diameter of the head of the target axle 7. The inner diameter of the heating hole 803 is slightly larger than the outer diameter of the induction heating coil 501, which in turn is slightly larger than the outer diameter of the spline on the head of the target axle 7, thereby preventing burns caused by direct contact between the head of the target axle 7 and the induction heating coil 501.

[0029] The low-temperature heating device for the head of the automobile half-axle spline provided in this embodiment adopts a bevel structure design, so that the feeding mechanism 6 and the induction heating mechanism 5 are in the same plane and remain coaxial, thereby ensuring that the head of the target half-axle 7 to be heated is always in the center position of the heating hole 803, avoiding the heating position deviation phenomenon caused by the up and down movement of the insulation tube 8; in conjunction with the inclined working surface of the bevel bracket 3 and the bevel ladder 4, combined with the design of the inclined feed trough 602 and the pushing unit on the feeding mechanism 6, the target half-axle 7 can be automatically and smoothly pushed forward, and automatic feeding and discharging can be realized, thereby improving the degree of automation.

[0030] Please refer to Figure 2 and Figure 3 In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred solution, the lifting and adjusting mechanism includes an oblique mounting plate 510, a wheel unit and two first slide rail units; the oblique mounting plate 510 is parallel to the oblique base plate 507, and the wheel unit and the two first slide rail units are arranged between the oblique mounting plate 510 and the oblique base plate 507; the wheel unit includes a wheel disc 506, a bearing seat 512, a screw 513 and a screw sleeve, there are two bearing seats 512, both of which are fixedly arranged on the oblique base plate 507, the wheel disc 506 is fixedly connected to the screw 513, and the screw sleeve is fixedly arranged On the inclined mounting plate 510, the screw 513 passes through the two bearing seats 512 respectively and is rotatably connected to the two bearing seats 512. The screw 513 is threadedly connected to the sleeve. The sleeve wheel 506, the screw 513, the sleeve and the two bearing seats 512 are coaxially arranged; the first slide rail unit includes a first track 508 and a first slider 509. The first track 508 is fixedly set on the inclined base plate 507, and the first slider 509 is fixedly set on the inclined mounting plate 510. The first track 508 is arranged parallel to the screw 513, and the first track 508 is slidably connected to the first slider 509.

[0031] In some embodiments, when the height of the coil sleeve 502 needs to be adjusted, the screw 513 can be driven to rotate by rotating the wheel 506, thereby changing the distance between the screw sleeve and the inclined mounting plate 510. Since the first slider 509 is slidingly connected to the first track 508, as the distance between the screw sleeve and the inclined mounting plate 510 changes, the first slider 509 will slide along the first track 508, and finally drive the coil sleeve 502 to move to the specified height.

[0032] Please refer to Figure 7 and Figure 8 In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the power supply module includes an external terminal 401, which is arranged on the upper surface of the inclined step 4; a coil sleeve 502 is provided at the end of the induction heating coil 501, and the external terminal 401 is electrically connected to the induction heating coil 501 through a cable 503 and the coil sleeve 502; an insulating bracket 511 is provided on the inclined mounting plate 510, and a buckle 514 and a fastening nut 515 are provided on the insulating bracket 511. The insulating bracket 511 can induction heat the upper end of the coil 501 through the buckle 514 and the fastening nut 515, and the upper end of the induction heating coil 501 is connected to the coil sleeve 502.

[0033] Please refer to Figure 11 and Figure 12 In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, the insulation cylinder 8 includes a cylinder body 801 and a convex ridge 802, the convex ridge 802 is arranged on the side wall of the cylinder body 801 and is integrally connected to the cylinder body 801; the heating hole 803 is opened in the cylinder body 801 and passes through the cylinder body 801, the convex ridge 802 is provided with a wiring groove 804 with an open upper end and a closed lower end, and the wiring groove 804 is connected to the heating hole 803; the wiring groove 804 is used to accommodate the input and output wires of the induction heating coil 501; the center line of the groove bottom of the wiring groove 804, the axis of the heating hole 803 and the axis of the cylinder body 801 are coplanar.

[0034] In some embodiments, the heating hole 803 is eccentrically arranged on the barrel 801, so that the same diameter barrel 801 can be used, but heating holes 803 of different diameters. In other words, because the position of the wiring groove 804 is fixed relative to the same barrel 801, the distance between the farthest point of the heating holes 803 of different diameters and the axis of the barrel 801 is the same, so that when using the insulation barrel 8 of different specifications, different induction heating coils 501 can be replaced even without changing the installation position of the coil sleeve 502, and the induction heating coil 501 can be in the appropriate position in the heating hole 803. On the other hand, due to the eccentric design of the heating hole 803 of the barrel 801, the target semi-axles 7 of different specifications can also be adjusted less in the debugging process before heating.

[0035] Please refer to Figure 9 and Figure 10 , in the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, the heating box includes a heating box cover 504 and a heating box body 505, and the heating box cover 504 is detachably connected to the heating box body 505; at least one top hole is provided on the heating box cover 504, and at least one bottom hole is provided at the bottom of the heating box body 505; the top hole, the bottom hole, the insulation cylinder 8, the induction heating coil 501 and the feeding mechanism 6 are all in one-to-one correspondence; the top hole includes a top mounting hole 516 and a top positioning hole 517, the top mounting hole 516 is a circular through hole for mounting the top of the cylinder body 801, and the top positioning hole 517 is a rectangular through hole for mounting the top of the convex rib 802; the bottom hole includes a bottom mounting hole 518 and a bottom positioning groove 519, the bottom mounting hole 518 is a circular through hole for mounting the bottom of the cylinder body 801, and the bottom positioning groove 519 is a rectangular countersunk hole for mounting the bottom of the convex rib 802.

[0036] In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, the heating box cover 504 is divided into a first box cover 5041 and a second box cover 5042 which are independent of each other, and the heating box body 505 is divided into a first box body 5051 and a second box body 5052, the first box cover 5041 corresponds to the first box body 5051, and the second box cover 5042 corresponds to the second box body 5052; the insulation tube 8 is cast in one piece; the insulation tube 8 has at least two specifications, and the inner diameters of the heating holes 803 of the insulation tubes 8 of different specifications are different, and the outer diameters of the insulation tubes 8 of different specifications are the same; the induction heating coil 501 has at least two different specifications, and the outer diameters of the coils of the induction heating coils 501 of different specifications are different; each specification of the insulation tube 8 corresponds to at least one specification of the induction heating coil 501; the specifications of the insulation tubes 8 in the first box body 5051 and the second box body 5052 are the same or different.

[0037] Please refer to Figure 4In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred solution, the feeding mechanism 6 is installed on the oblique side surface of the oblique bracket 3 through the feeding base plate 612; two symmetrically arranged channel steel bases 617 are fixedly provided on the feeding base plate 612, and the feeding trough 602 and the pushing unit are both installed on the two channel steel bases 617.

[0038] Please refer to Figure 4 、 Figure 5 and Figure 6 In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, the feeding mechanism 6 includes a feeding push rod 621, a chain transmission unit and a second slide rail unit; the feeding trough 602 includes two fixed trough plates 6021 and a movable trough plate 6022 arranged obliquely and symmetrically, and a gap is provided between the fixed trough plate 6021 and the movable trough plate 6022. One end of the feeding push rod 621 passes through the gap between the two trough plates, and the other end is connected to the second slide rail unit; the fixed trough plate 6021 and the movable trough plate 6022 are respectively installed on two channel steel bases 617 through a fixed bracket 6011 and a material moving bracket 6012; the second slide rail unit includes two second slide rails and two second sliders 608, the two second slide rails are parallel to the feeding trough 602 and are respectively fixed on the two channel steel bases 617, and the two second sliders 608 are respectively connected to the fixed trough 6011 and the movable trough plate 6012. The two second slide rails are slidably connected, and the upper ends of the two second sliders 608 are fixedly connected by a connecting plate 620. The feed push rod 621 is installed above the connecting plate 620, and the bottom of the connecting plate 620 is connected to the chain transmission unit through a driving arm 622; the chain transmission unit includes a feed motor 619, a feed chain 610, a driving sprocket 609 and a passive sprocket. A motor mounting plate 618 is fixedly provided on the side of the channel steel base 617, and the feed motor 619 is installed on the motor mounting plate 618. The driving sprocket 609 and the passive sprocket are both located between the two channel steel bases 617. The output end of the feed motor 619 is connected to the driving sprocket 609, and the driving sprocket 609 and the driven sprocket 611 are connected by the feed chain 610; the lower end of the driving arm 622 is provided with a chain clamp 626, and the chain clamp 626 is detachably clamped on the feed chain 610.

[0039] The target half-shaft 7 has two states, namely, the half-shaft to be heated 701 and the heated half-shaft 702. In some embodiments, when the feed motor 619 is started, the driving sprocket 609 starts to operate and drives the feed chain 610 to move. Since the second slider 608 is connected to the feed chain 610 through the driving arm 622 and the chain clamp 626, the second slider 608 will also move accordingly, driving the feed push rod 621 to reciprocate through the connecting plate 620, thereby pushing the head of the half-shaft to be heated 701 into the heating box, or lowering the feed push rod 621 to allow the heated half-shaft 702 to leave the heating box under its own gravity.

[0040] In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, the feeding mechanism 6 also includes a material moving unit and a storage unit, and the angle between the fixed groove plate 6021 and the movable groove plate 6022 is a right angle or an obtuse angle less than 120°; the material moving unit includes a material moving cylinder 624 and at least two sliding shafts 625, and the material moving cylinder 624 and at least two sliding shafts 625 are all installed on the material moving bracket 6012, the cylinder body of the material moving cylinder 624 is fixedly connected to the material moving bracket 6012, and the end of the piston rod is connected to the movable groove plate 6022, the two sliding shafts 625 are slidably connected to the material moving bracket 6012, and one end of the two sliding shafts 625 is connected to the material moving bracket 6012, and the other end is freely set; the two sliding shafts The shaft 625 is parallel to the piston rod of the material transfer cylinder 624; the storage unit includes a front support plate 614, a rear support plate 615 and a rear baffle 616, and the front support plate 614, the rear support plate 615 and the rear baffle 616 are all fixedly connected to the fixed bracket 6011, and the front support plate 614 and the rear support plate 615 are both located on the outside of the fixed groove plate 6021, and the inner sides of the front support plate 614 and the rear support plate 615 are lower than the upper edge of the fixed groove plate 6021, and the outer sides of the front support plate 614 and the rear support plate 615 are bent in an upward arc; the rear baffle 616 is located at the lower end surface of the rear support plate 615, and the upper edge of the rear baffle 616 is higher than the upper edge of the rear support plate 615 and the fixed groove plate 6021; a gap is set between the front support plate 614 and the rear support plate 615.

[0041] In the above-mentioned segmented local heating device for automobile half-axle spline processing, as a preferred embodiment, an adjustment unit is provided below the upper end of the feed trough 602, and the adjustment unit is used to adjust the position of the target half-axle 7 on the feed trough 602 so that the upper end of the target half-axle 7 is aligned with the heating hole 803 of the insulation cylinder 8, and the adjustment unit includes an adjustment roller 603, an adjustment screw 604 and an adjustment base 605; the adjustment roller 603 is in contact with the feed trough 602; the adjustment base 605 is fixedly mounted on the feed base plate 612; an adjustment screw 604 is provided between the adjustment roller 603 and the adjustment base 605, and the adjustment screw 604 is connected to the adjustment roller 603 and the adjustment base 605 by threads.

[0042] In some embodiments, when the position of the target semi-axis 7 needs to be adjusted, it is only necessary to rotate the adjusting screw 604 to adjust the angle of the upper end of the target semi-axis 7 relative to the insulation cylinder 8 when it moves onto the adjusting roller 603 until the upper end of the target semi-axis 7 is completely aligned with the insulation cylinder 8.

[0043] In the above-mentioned segmented local heating device for automobile half-shaft spline processing, as a preferred embodiment, the segmented local heating device for automobile half-shaft spline processing also includes a furnace body 2 and a distribution cabinet 1; the power supply module also includes a 300KW medium frequency power supply, a capacitor 202 and a busbar 203, the 300KW medium frequency power supply is used for an external power supply line, the 300KW medium frequency power supply, the capacitor 202 and the busbar 203 are electrically connected in sequence, and the busbar 203 is electrically connected to the induction heating coil 501; the 300KW medium frequency power supply is arranged in the distribution cabinet 1; the capacitor 202 and the busbar 203 are arranged in the furnace body 2.

[0044] In some embodiments, the power distribution cabinet 1 can be used as a manual operation platform 102, comprising a ladder 101, a platform 102, and a railing 103. The ladder 101 is located at the center and rear of the power distribution cabinet 1. An insulated platform 102 is provided above the power distribution cabinet 1 for workers to step on to operate or connect the induction heating mechanism 5. A railing 103 is provided on the edge of the platform 102. A first cabinet door 104 is provided on the side of the power distribution cabinet 1 to facilitate operator maintenance.

[0045] In some embodiments, a water channel 201 is provided within the furnace body 2 to reduce the temperature within the furnace body 2. If necessary, the water channel 201 can be connected to the induction heating mechanism 5 to quench the splines of the heated target half-shaft 7. A second cabinet door 204 is provided on the side of the furnace body 2 to facilitate maintenance by operators. Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments can be implemented by hardware or by computer program. When all or part of the functions in the above embodiments are implemented by computer program, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above functions can be implemented. In addition, when all or part of the functions in the above embodiments are implemented by computer program, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and saved in the memory of the local device by downloading or copying, or the system of the local device is updated. When the program in the memory is executed by the processor, all or part of the functions in the above embodiments can be implemented.

[0046] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.

Claims

1. A segmented local heating device for automobile half-shaft spline processing, used for local heating the head of the target half-shaft, characterized in that: The segmented local heating device for automobile half-shaft spline processing comprises: A main frame, wherein an oblique bracket is provided on the side of the main frame, and an inclined step is provided on the top of the main frame, wherein the oblique side surfaces of the oblique bracket and the inclined step have the same inclination angle and are in a coplanar state; A power supply module, which is arranged on the main frame and is used for supplying power; The induction heating mechanism comprises an inclined base plate, a lifting and adjusting mechanism, a heating box, at least one insulation cylinder and at least one induction heating coil; the inclined base plate is fixedly inclined along the inclined platform, the lifting and adjusting structure and the heating box are fixedly arranged on the inclined base plate from top to bottom, the induction heating coil is detachably connected to the lifting and adjusting mechanism, and the insulation cylinder is detachably arranged in the heating box; the induction heating coil is electrically connected to the power supply module, and when the power supply module supplies power to the induction heating coil, the induction heating coil heats the target semi-shaft inside the induction coil based on electromagnetic induction; a heating hole is provided in the insulation cylinder, and the heating hole is used to accommodate the target semi-shaft head and the induction heating coil when locally heating the target semi-shaft head, and the lifting and adjusting mechanism is used to change the heated position of the target semi-shaft by adjusting the position of the induction heating coil in the insulation cylinder; At least one feeding mechanism, at least one of the feeding mechanisms is arranged parallel to each other on the oblique side surface of the oblique bracket, and includes a feeding trough and a pushing unit; the feeding trough is arranged obliquely for placing the target semi-shaft; the pushing unit is arranged at the bottom end of the feeding trough, and is used to push the target semi-shaft so that the head of the target semi-shaft is located in the heating hole of the insulation cylinder; The inner diameter of the heating hole of the heat preservation cylinder is larger than the outer diameter of the induction heating coil, and the inner diameter of the induction heating coil is larger than the outer diameter of the spline of the target half-shaft head; The heat preservation cylinder, the induction heating coil and the feeding mechanism all correspond to each other one by one.

2. The segmented local heating device for automobile half-shaft spline processing according to claim 1, characterized in that: The lifting and adjusting mechanism includes an oblique mounting plate, a wheel unit and two first slide rail units; The inclined mounting plate is parallel to the inclined base plate, and the wheel unit and the two first slide rail units are arranged between the inclined mounting plate and the inclined base plate; The wheel disc unit includes a wheel disc, a bearing seat, a screw and a screw sleeve. There are two bearing seats, both of which are fixedly arranged on the inclined base plate. The wheel disc is fixedly connected to the screw. The screw sleeve is fixedly arranged on the inclined mounting plate. The screw passes through the two bearing seats respectively and is rotatably connected to the two bearing seats. The screw is threadedly connected to the screw sleeve. The screw sleeve, the wheel disc, the screw, the screw sleeve and the two bearing seats are coaxially arranged. The first slide rail unit includes a first rail and a first slider. The first rail is fixedly arranged on the inclined base plate. The first slider is fixedly arranged on the inclined mounting plate. The first rail is arranged parallel to the screw rod. The first rail is slidably connected to the first slider.

3. The segmented local heating device for automobile half-shaft spline processing according to claim 2, characterized in that: The power supply module includes an external terminal, which is arranged on the upper surface of the inclined platform; a coil sleeve is provided at the end of the induction heating coil, and the external terminal is electrically connected to the coil sleeve through a cable; An insulating bracket is provided on the oblique mounting plate. A buckle and a fastening nut are provided on the insulating bracket. The insulating bracket can detachably mount the coil sleeve via the buckle and the fastening nut.

4. The segmented local heating device for automobile half-shaft spline processing according to claim 1, characterized in that: The heat preservation cylinder comprises a cylinder body and convex ridges, wherein the convex ridges are arranged on the side wall of the cylinder body and are integrally connected to the cylinder body; The heating hole is provided in the barrel and passes through the barrel, and the ridge is provided with a wiring groove with an upper end open and a lower end closed, the wiring groove being in communication with the heating hole; the wiring groove is used to accommodate the input and output wires of the induction heating coil; The center line of the bottom of the wiring groove, the axis of the heating hole and the axis of the barrel are coplanar.

5. The segmented local heating device for automobile half-shaft spline processing according to claim 4, characterized in that: The heating box comprises a heating box cover and a heating box body, wherein the heating box cover is detachably connected to the heating box body; The heating box cover is provided with at least one top hole, and the bottom of the heating box body is provided with at least one bottom hole; the top hole, the bottom hole, the insulation cylinder, the induction heating coil and the feeding mechanism are all in one-to-one correspondence; The top hole position includes a top mounting hole and a top positioning hole, the top mounting hole is a circular through hole shape, used to install the top of the barrel body, and the top positioning hole is a rectangular through hole shape, used to install the top of the convex ridge; the bottom hole position includes a bottom mounting hole and a bottom positioning groove, the bottom mounting hole is a circular through hole shape, used to install the bottom of the barrel body, and the bottom positioning groove is a rectangular countersunk hole shape, used to install the bottom of the convex ridge.

6. The segmented local heating device for automobile half-shaft spline processing according to claim 5, characterized in that: The heating box cover is divided into a first box cover and a second box cover which are independent of each other, and the heating box body is divided into a first box body and a second box body, the first box cover corresponds to the first box body, and the second box cover corresponds to the second box body; The insulation cylinder is integrally cast; the insulation cylinder has at least two specifications, and the inner diameters of the heating holes of the insulation cylinders of different specifications are different, and the outer diameters of the insulation cylinders of different specifications are the same; the induction heating coil has at least two different specifications, and the outer diameters of the induction heating coils of different specifications are different; each specification of the insulation cylinder corresponds to at least one specification of the induction heating coil; The specifications of the heat preservation cylinders in the first box body and the second box body are the same or different.

7. The segmented local heating device for automobile half-shaft spline processing according to claim 1, characterized in that: The feeding mechanism is installed on the oblique side surface of the oblique support through a feeding base plate; Two symmetrically arranged channel steel bases are fixedly provided on the feed base plate, and the feed trough and the pushing unit are both installed on the two channel steel bases.

8. The segmented local heating device for automobile half-shaft spline processing according to claim 7, characterized in that: The feeding mechanism includes a feeding push rod, a chain transmission unit and a second slide rail unit; The feed trough includes two fixed trough plates and a movable trough plate that are obliquely symmetrically arranged, a gap is provided between the fixed trough plate and the movable trough plate, one end of the feed push rod passes through the gap between the two trough plates, and the other end is connected to the second slide rail unit; the fixed trough plate and the movable trough plate are respectively installed on the two channel steel bases through a fixed bracket and a material moving bracket; The second slide rail unit includes two second slide rails and two second sliders, the two second slide rails are parallel to the feed trough and are respectively fixedly arranged on the two channel steel bases, the two second sliders are respectively slidably connected to the two second slide rails, the upper ends of the two second sliders are fixedly connected by a connecting plate, the feed push rod is installed above the connecting plate, and the lower side of the connecting plate is connected to the chain transmission unit through a driving arm; The chain transmission unit includes a feed motor, a feed chain, a driving sprocket and a driven sprocket. A motor mounting plate is fixedly provided on the side of the channel steel base. The feed motor is mounted on the motor mounting plate. The driving sprocket and the driven sprocket are both located between the two channel steel bases. The output end of the feed motor is connected to the driving sprocket, and the driving sprocket and the driven sprocket are connected via a feed chain. The lower end of the driving arm is provided with a chain clamping plate, and the chain clamping plate is detachably clamped on the feeding chain.

9. The segmented local heating device for automobile half-shaft spline processing according to claim 8, characterized in that: The feeding mechanism further includes a material moving unit and a storage unit, and the angle between the fixed slot plate and the movable slot plate is a right angle or an obtuse angle less than 120°; The material moving unit includes a material moving cylinder and at least two sliding shafts, the material moving cylinder and the at least two sliding shafts are installed on the material moving bracket, the cylinder body of the material moving cylinder is fixedly connected to the material moving bracket, the end of the piston rod is connected to the movable groove plate, the two sliding shafts are slidably connected to the material moving bracket, and one end of the two sliding shafts is connected to the material moving bracket and the other end is freely set; the two sliding shafts are parallel to the piston rod of the material moving cylinder; The storage unit includes a front support plate, a rear support plate and a rear baffle, wherein the front support plate, the rear support plate and the rear baffle are all fixedly connected to a fixed bracket, the front support plate and the rear support plate are both located on the outer side of the fixed groove plate, and the inner sides of the front support plate and the rear support plate are lower than the upper edge of the fixed groove plate, and the outer sides of the front support plate and the rear support plate are bent in an upward arc; the rear baffle is located at the lower end surface of the rear support plate, and the upper edge of the rear baffle is higher than the upper edges of the rear support plate and the fixed groove plate; A gap is provided between the front supporting plate and the rear supporting plate.

10. The segmented local heating device for automobile half-shaft spline processing according to claim 8 or 9, characterized in that: An adjustment unit is provided below the upper end of the feed chute, and the adjustment unit is used to adjust the position of the target semi-axis on the feed chute so that the upper end of the target semi-axis is aligned with the heating hole of the insulation cylinder, and the adjustment unit includes an adjustment roller, an adjustment screw and an adjustment base; The regulating roller is in contact with the feed trough; The adjusting base is fixedly mounted on the feeding base plate; An adjusting screw is provided between the adjusting roller and the adjusting base, and the adjusting screw is connected to the adjusting roller and the adjusting base via threads.

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