Stepped shaft part heat treatment processing technology and processing equipment thereof

Abstract

The invention discloses a stepped shaft part heat treatment machining process and machining equipment thereof, relates to the technical field of heat treatment, and aims to provide a stepped shaft part heat treatment process with a good heat treatment effect and machining equipment with a good cleaning effect involved in the heat treatment process. The device further comprises a cleaning assembly, a drying assembly, a feeding assembly and a bearing assembly, and the bearing assembly is used for containing the stepped shaft and can be placed in the cleaning assembly, the drying assembly and the quenching furnace; the cleaning assembly is used for soaking and cleaning the stepped shaft placed in the bearing assembly; the cleaning device has the beneficial effects that the cleaning assembly is arranged, the bearing assembly provided with the stepped shaft can be put into the soaking box to be soaked and cleaned, the stepped shaft can be lifted up from the bearing assembly through the lifting assembly so that the contact position of the stepped shaft and the bearing assembly can be cleaned, and the cleaning effect of the cleaning device is improved; and the subsequent heat treatment effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of heat treatment technology, and more specifically, to a heat treatment process for stepped shaft parts and a processing device thereof. Background Art

[0002] A stepped shaft refers to a shaft with shoulders composed of different outer diameters. Most stepped shafts are set to be thick in the middle and thin at both ends. In the field of mechanical processing, stepped shafts are a common transmission component, and their quality and precision are crucial to the performance of the entire mechanical system. Before the heat treatment of the stepped shaft, the cleaning process is an indispensable part. At present, the cleaning of stepped shafts before heat treatment mainly adopts spray cleaning. However, this cleaning method has exposed some obvious problems in practical applications, resulting in poor cleaning effect.

[0003] First, the existing spray cleaning system usually uses water-based metal cleaning agents. Although such cleaning agents are cheap, environmentally friendly, pollution-free and non-toxic, they are prone to produce a large amount of foam during the spray cleaning process, which not only increases the difficulty of cleaning, but may also lead to incomplete cleaning. The overflow of foam may also cause waste of liquid medicine and environmental pollution.

[0004] Secondly, the effect of spray cleaning is affected by many factors. For example, unreasonable placement of workpieces may cause blind spots in cleaning, and too high oil content in the working fluid will affect the degreasing effect of the cleaning agent. In addition, problems such as insufficient cleaning agent concentration, insufficient degreasing time, insufficient degreasing temperature, and residual surfactants or additives in the cleaning agent may all lead to a lot of surface residues after cleaning, affecting the cleaning quality of the stepped shaft.

[0005] In summary, the existing spray cleaning method for stepped shafts before heat treatment has many shortcomings, and a new cleaning device is urgently needed to improve the cleaning effect and production efficiency. The purpose of the present invention is to solve these problems and provide a stepped shaft cleaning device that is suitable for heat treatment process, has good cleaning effect, and is convenient for subsequent heat treatment processing. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a heat treatment process for stepped shaft parts and a processing equipment thereof to solve the technical problems mentioned in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A heat treatment processing equipment for stepped shaft parts includes a quenching furnace, a cleaning component, a drying component, a feeding component and a bearing component, wherein the bearing component is used to place the stepped shaft and can be placed in the cleaning component, the drying component and the quenching furnace; the cleaning component is used to soak and clean the stepped shaft placed in the bearing component; the drying component is used to dry the stepped shaft after being cleaned by the cleaning component; the feeding component is used to feed the bearing component into the cleaning component, and is also used to move the bearing component from the cleaning component into the drying component.

[0008] The present invention is further configured such that the bearing assembly includes a plurality of placement units and a plurality of connection assemblies, and the plurality of placement units are arranged in sequence from top to bottom, and two adjacent groups of the placement units are connected via the connection assemblies.

[0009] The present invention is further configured such that the placement unit includes an installation frame, a plurality of first support seats and a limiting assembly, wherein the plurality of first support seats are installed on the installation frame for supporting the stepped shaft; the limiting assembly cooperates with the plurality of first support seats for limiting the stepped shaft in the first support seats.

[0010] The present invention is further configured such that the cleaning component includes an ultrasonic generator, a transducer, an immersion box and a lifting component, wherein the lifting component is slidably arranged on the immersion box, wherein the immersion box is used to contain cleaning liquid and to place the carrying component; the ultrasonic generator is used to generate an ultrasonic signal; the transducer is used to convert the ultrasonic signal into mechanical vibration energy, so that the cleaning liquid contained in the immersion box cleans the stepped shaft; the lifting component is used to lift the stepped shaft on the carrying component to make it leave the carrying component, thereby allowing the cleaning liquid to clean the contact portion of the stepped shaft with the carrying component.

[0011] The present invention is further configured such that the lifting assembly includes a first transverse movement mechanism, a first lifting mechanism and a plurality of lifting units, the first lifting mechanism is connected to the first transverse movement mechanism, the plurality of lifting units are all installed on the first lifting mechanism, and the plurality of lifting units are respectively arranged corresponding to the plurality of placement units, wherein the first transverse movement mechanism is used to drive the plurality of lifting units to move laterally so that the lifting units are inserted into the bearing assembly; the first lifting mechanism is used to drive the plurality of lifting units to move longitudinally so that the lifting units lift the step shaft on the bearing assembly upward away from the bearing assembly.

[0012] The present invention is further configured such that the lifting unit includes a lifting plate and a plurality of second support seats, the plurality of second support plates are mounted on the lifting plate, and the second support seats are provided with an arc groove that cooperates with the stepped shaft.

[0013] The present invention is further configured such that the drying component includes a drying box, a drying fan, a water collecting tank and a drain pipe, two drying fans are provided, and are respectively connected to the two sides of the drying box, the water collecting tank is fixedly installed in the drying box, one end of the drain pipe is connected to the water collecting tank, and the other end passes through the drying box and is arranged outside the drying box.

[0014] The present invention is further configured such that the drying assembly also includes a first box cover and a first oil cylinder, the first box cover is hinged to the drying box, the first oil cylinder is rotatably installed on one side of the drying box, and its telescopic end is rotatably connected to the first box cover.

[0015] The present invention is further configured such that the drying assembly further includes a door, and the door is hingedly mounted on one side of the drying box.

[0016] The present invention is further configured such that the feeding assembly includes a second transverse movement mechanism, a second lifting mechanism and a hydraulic clamp, wherein the second lifting mechanism is installed on the second transverse movement mechanism, and the hydraulic clamp is connected to the second lifting mechanism, wherein the hydraulic clamp is used to clamp the load-bearing assembly; the second lifting mechanism is used to drive the hydraulic clamp and the load-bearing assembly to move up and down; the second transverse movement mechanism is used to drive the second lifting mechanism, the hydraulic clamp and the load-bearing assembly to move laterally, thereby moving the load-bearing assembly from the outside into the cleaning assembly, or from the cleaning assembly into the drying assembly.

[0017] The present invention is further configured such that a handle is provided on the installation frame to facilitate clamping by the hydraulic clamp.

[0018] The present invention is further configured such that the limit assembly includes a pull rod, a plurality of limit plates and a plurality of connecting rods, the pull rod is slidably connected to the mounting frame, the plurality of limit plates are respectively rotatably connected to a plurality of first support seats, one end of the connecting rod is rotatably connected to the limit plate, and the other end is rotatably connected to the pull rod.

[0019] The present invention is further configured such that two groups of the limit assemblies are provided and symmetrically installed on both sides of the installation frame, and a connecting rod is connected between the two pull rods.

[0020] The present invention is further configured such that a first through hole and a second through hole are provided on the pull rod, and a threaded hole is provided on the mounting frame. When the first through hole corresponds to the threaded hole and is connected by bolts, the limit plate is closed and installed on the first support seat to limit the stepped shaft. When the second through hole corresponds to the threaded hole and is connected by bolts, the limit plate is expanded to release the limitation on the stepped shaft.

[0021] The present invention is further configured such that the placement unit also includes four supporting feet and four supporting columns, the four supporting feet are fixedly mounted on the lower surface of the mounting frame, the four supporting columns are fixedly mounted on the upper surface of the mounting frame, and the four supporting columns are each provided with a limiting column, and the four supporting feet are provided with limiting holes that cooperate with the limiting columns.

[0022] The present invention is further configured such that when two adjacent groups of the placement units are stacked, the support legs of the upper placement units cooperate with the limiting columns of the lower placement units.

[0023] The present invention is further configured such that the connecting assembly includes a first connecting screw, a second connecting screw, a connecting plate, a first nut and a second nut, the first connecting screw and the second connecting screw are respectively fixedly mounted on the supporting foot and the supporting column, the first connecting screw passes through the connecting plate and is threadedly connected to the first nut, and the second connecting screw passes through the connecting plate and is threadedly connected to the second nut.

[0024] The present invention is further configured such that the first transverse movement mechanism includes a first movable plate and a first oil cylinder, the first movable plate is slidably arranged on the immersion box, the first oil cylinder is fixedly arranged on the immersion box, and its telescopic end is connected to the first movable plate.

[0025] The present invention is further configured such that the first lifting mechanism includes a second movable plate and a second oil cylinder, the second oil cylinder is fixedly mounted on the first movable plate, and its telescopic end passes through the first movable plate and is connected to the second movable plate, and the lifting unit is connected to the second movable plate.

[0026] The present invention is further configured such that the second transverse movement mechanism includes a support frame, a third movable plate and a third oil cylinder, the support frame is mounted outside the immersion box and the drying box, the third movable plate is slidably mounted on the support frame, the third oil cylinder is fixedly mounted on the support frame, and its telescopic end is connected to the third movable plate.

[0027] The present invention is further configured such that the second lifting mechanism includes a fourth movable plate and a fourth oil cylinder, the fourth oil cylinder is fixedly mounted on the third movable plate, and its telescopic end passes through the third movable plate and is connected to the fourth movable plate, and the hydraulic clamp is mounted on the fourth movable plate.

[0028] A heat treatment process for stepped shaft parts, comprising: S1: Place the stepped shaft in the bearing assembly, stack several placement units and connect them through the connecting assembly, and put the limit plate in the released limit state.

[0029] S2: The bearing assembly is fed into the cleaning assembly through the feeding assembly, and the stepped shaft in the bearing assembly is immersed and cleaned.

[0030] S3: The cleaned load-bearing component is fed from the cleaning component to the drying component through the feeding component, and the stepped shaft on the load-bearing component is dried.

[0031] S4: The load-bearing components are transported from the drying components to the quenching furnace for quenching by a forklift.

[0032] S5: The quenched load-bearing components are sent to the tempering furnace for tempering by a forklift.

[0033] The present invention is further configured that step S2 comprises: S201: slowly placing the support component into a soaking box filled with cleaning liquid through the feeding component.

[0034] S202: The ultrasonic generator emits an ultrasonic signal, and converts the ultrasonic signal into mechanical vibration energy through the transducer, so that the cleaning fluid cleans the stepped shaft.

[0035] S203: Lift the stepped shaft upward from the bearing assembly through the lifting assembly, so that the cleaning liquid cleans the contact point between the stepped shaft and the first supporting seat, and resets the stepped shaft after the cleaning is completed.

[0036] The present invention is further configured that step 4 comprises: S401: Open the door of the drying box and manually adjust the limit assembly to a limit state for the stepped shaft.

[0037] S402: The load-bearing assembly is transported from the drying assembly to a quenching furnace for quenching by a forklift.

[0038] Compared with the prior art, the present invention provides a heat treatment process for stepped shaft parts and a processing device thereof, which has the following beneficial effects: 1. The present invention is provided with a cleaning component, which can put the load-bearing component equipped with the stepped shaft into the immersion box for immersion cleaning, and can also lift the stepped shaft from the load-bearing component through the lifting component to clean the contact point between the stepped shaft and the load-bearing component, thereby improving the cleaning effect and further improving the subsequent heat treatment effect.

[0039] 2. The present invention is provided with a bearing assembly, which includes a limiting assembly for limiting the stepped shaft. When cleaning, the limiting assembly is in a released limiting state so that the lifting assembly can lift the stepped shaft from the bearing assembly to facilitate cleaning of the stepped shaft; during quenching, the limiting assembly is in a limiting state to prevent the quenching liquid from rolling during quenching, causing the stepped shaft to deviate from the bearing assembly or even fall off.

[0040] 3. In the heat treatment process disclosed in the present invention, before quenching, the stepped shaft is firstly fully cleaned and dried by a cleaning component and a drying component to improve the subsequent quenching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of a heat treatment process for stepped shaft parts and its processing equipment in the present invention; Figure 2It is a schematic diagram of the structure of the cleaning component in the present invention; Figure 3 It is a schematic diagram of the structure of the lifting assembly in the present invention; Figure 4 It is a structural schematic diagram of the cleaning component in the present invention from another angle; Figure 5 It is a structural schematic diagram of the bearing assembly in the present invention; Figure 6 It is a schematic diagram of the placement unit structure in the present invention; Figure 7 It is a schematic diagram of the connection structure of the connection component and two installation frames in the present invention; Figure 8 It is a structural schematic diagram of the drying component in the present invention; Fig. 9 It is a structural schematic diagram of the water collecting tank in the present invention; Fig.10 It is a structural schematic diagram of the feeding assembly in the present invention;.

[0042] In the figure: 1, quenching furnace; 2, cleaning assembly; 21, ultrasonic generator; 22, transducer; 23, soaking box; 24, lifting assembly; 241, first transverse movement mechanism; 242, first lifting mechanism; 243, lifting unit; 2411, first moving plate; 2412, first oil cylinder; 2421, second moving plate; 2422, second oil cylinder; 2431, lifting plate; 2432, second support seat; 2433, arc groove; 3. Drying assembly; 31. Drying box; 32. Drying fan; 33. Water collecting tank; 34. Drain pipe; 35. First box cover; 36. Telescopic oil cylinder; 37. Box door; 4. Feeding assembly; 41. Second transverse movement mechanism; 42. Second lifting mechanism; 43. Hydraulic clamp; 411. Support frame; 412. Third moving plate; 413. Third oil cylinder; 421. Fourth moving plate; 422. Fourth oil cylinder; 5. Carrying assembly; 51. Placement unit; 52. Connecting assembly; 511. Installation frame; 512. First support seat; 513. Limiting assembly; 514. Support foot; 515. Support column; 516. Limiting column; 517. Limiting hole; 518. Handle; 5131. Pull rod; 5132. Limiting plate; 5133. Connecting rod; 5134. Connecting rod; 5135. First through hole; 5136. Second through hole; 5137. Threaded hole; 521. First connecting screw; 522. Second connecting screw; 523. Connecting plate; 524. First nut; 525. Second nut. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0045] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0046] Heat treatment process of stepped shaft parts, including: S1: Place the stepped shaft in the bearing assembly, stack several placement units and connect them through the connecting assembly, and put the limit plate in the release state; S2: feeding the bearing assembly into the cleaning assembly through the feeding assembly, and immersing and cleaning the stepped shaft in the bearing assembly; S201: slowly placing the bearing assembly into a soaking box filled with cleaning liquid through a feeding assembly; S202: The ultrasonic generator emits an ultrasonic signal, and converts the ultrasonic signal into mechanical vibration energy through a transducer, so that the cleaning liquid cleans the stepped shaft; S203: Lift the stepped shaft upward from the bearing assembly through the lifting assembly, so that the cleaning liquid cleans the contact point between the stepped shaft and the first supporting seat, and resets the stepped shaft after the cleaning is completed.

[0047] S3: The cleaned load-bearing component is fed from the cleaning component to the drying component through the feeding component, and the stepped shaft on the load-bearing component is dried; S4: Use a forklift to transport the load-bearing component from the drying component to the quenching furnace for quenching; S401: Open the door of the drying box, and manually adjust the limit assembly to a limit state for the stepped shaft; S402: The load-bearing assembly is transported from the drying assembly to a quenching furnace for quenching by a forklift.

[0048] S5: The quenched load-bearing components are sent to the tempering furnace for tempering by a forklift.

[0049] See also Figure 1-10, heat treatment processing equipment for stepped shaft parts, including a quenching furnace 1, a cleaning component 2, a drying component 3, a feeding component 4 and a bearing component 5, wherein the bearing component 5 is used to place the stepped shaft, which can be placed in the cleaning component 2, the drying component 3 and the quenching furnace 1; the cleaning component 2 is used to soak and clean the stepped shaft placed in the bearing component 5; the drying component 3 is used to dry the stepped shaft after being cleaned by the cleaning component 2; the feeding component 4 is used to feed the bearing component 5 into the cleaning component 2, and is also used to move the bearing component 5 from the cleaning component 2 to the drying component 3.

[0050] When in use, the stepped shaft is manually placed on the load-bearing component 5, and then the load-bearing component 5 is placed at the starting end of the feeding component 4, and the load-bearing component 5 is moved into the cleaning component 2 filled with cleaning liquid through the feeding component 4 for thorough cleaning. After cleaning, the load-bearing component 5 is sent to the drying component 3 for drying through the feeding component 4. After drying, the worker opens the drying component 3, and uses a forklift to send the load-bearing component 5 in the drying component 3 into the quenching furnace 1 for quenching. After quenching, the forklift sends the load-bearing component 5 into the external tempering furnace for tempering, and after tempering, it is placed at room temperature for natural cooling.

[0051] Bearing components: See also Figure 5-7The bearing assembly 5 includes a plurality of placement units 51 and a plurality of connection assemblies 52, and the plurality of placement units 51 are arranged in sequence from top to bottom, and two adjacent groups of placement units 51 are connected by the connection assemblies 52. The placement unit 51 includes a mounting frame 511, a plurality of first support seats 512 and a limiting assembly 513, wherein the plurality of first support seats 512 are all mounted on the mounting frame 511 for supporting the stepped shaft; the limiting assembly 513 cooperates with the plurality of first support seats 512 for limiting the stepped shaft in the first support seats 512. The limiting assembly 513 includes a pull rod 5131, a plurality of limiting plates 5132 and a plurality of connecting rods 5133, the pull rod 5131 is slidably connected to the mounting frame 511, the plurality of limiting plates 5132 are respectively rotatably connected to the plurality of first support seats 512, one end of the connecting rod 5133 is rotatably connected to the limiting plate 5132, and the other end is rotatably connected to the pull rod 5131. There are two groups of limiter assemblies 513, which are symmetrically installed on both sides of the mounting frame 511, and a connecting rod 5134 is connected between the two pull rods 5131. The pull rod 5131 is provided with a first through hole 5135 and a second through hole 5136, and the mounting frame 511 is provided with a threaded hole 5137. When the first through hole 5135 corresponds to the threaded hole 5137 and is connected by bolts, the limiter plate 5132 is closed and installed on the first support seat 512 to limit the stepped shaft. When the second through hole 5136 corresponds to the threaded hole 5137 and is connected by bolts, the limiter plate 5132 is unfolded to release the limit on the stepped shaft. The placement unit 51 further includes four support legs 514 and four support columns 515. The four support legs 514 are fixedly mounted on the lower surface of the installation frame 511, and the four support columns 515 are fixedly mounted on the upper surface of the installation frame 511. The four support columns 515 are all provided with limit columns 516. The four support legs 514 are provided with limit holes 517 that cooperate with the limit columns 516. When two adjacent groups of placement units 51 are stacked, the support legs 514 of the upper placement unit 51 cooperate with the limit columns 516 of the lower placement unit 51. The connecting assembly 52 includes a first connecting screw 521, a second connecting screw 522, a connecting plate 523, a first nut 524 and a second nut 525. The first connecting screw 521 and the second connecting screw 522 are respectively fixedly mounted on the supporting foot 514 and the supporting column 515. The first connecting screw 521 passes through the connecting plate 523 and is threadedly connected to the first nut 524. The second connecting screw 522 passes through the connecting plate 523 and is threadedly connected to the second nut 525.

[0052] When in use, the worker first aligns the first through hole 5135 on the pull rod 5131 with the threaded hole 5137 on the mounting frame 511 and connects them through bolts. At this time, the limit plate 5132 is in a released limit state, and the stepped shaft is placed on the first support seat 512, and the shoulder of the stepped shaft is fitted with the first support seat 512 for limit. After placing one placement unit 51, the second placement unit 51 is installed above the placement unit 51, and the four supporting feet 514 on the upper mounting frame 511 are inserted into the limiting columns 516 of the four supporting columns 515 on the lower mounting frame 511 to complete the stacking of the two groups of placement units 51, and the connecting piece 523 is matched with the first connecting screw 521 and the second connecting screw 522, the first nut 524 is threadedly connected to the first connecting screw 521, and the second nut 525 is threadedly connected to the second connecting screw 522.

[0053] Cleaning components: See also Figure 1-4The cleaning component 2 includes an ultrasonic generator 21, a transducer 22, an immersion box 23 and a lifting component 24, wherein the lifting component 24 is slidably arranged on the immersion box 23, wherein the immersion box 23 is used to contain the cleaning liquid and to place the bearing component 5; the ultrasonic generator 21 is used to generate an ultrasonic signal; the transducer 22 is used to convert the ultrasonic signal into mechanical vibration energy, so that the cleaning liquid contained in the immersion box 23 cleans the stepped shaft; the lifting component 24 is used to lift the stepped shaft on the bearing component 5 to make it leave the bearing component 5, so that the cleaning liquid cleans the contact part of the stepped shaft with the bearing component 5. The lifting assembly 24 includes a first transverse movement mechanism 241, a first lifting mechanism 242 and a plurality of lifting units 243. The first lifting mechanism 242 is connected to the first transverse movement mechanism 241. The plurality of lifting units 243 are all mounted on the first lifting mechanism 242, and the plurality of lifting units 243 are respectively arranged corresponding to the plurality of placement units 51. The first transverse movement mechanism 241 is used to drive the plurality of lifting units 243 to move transversely, so that the lifting units 243 are inserted into the bearing assembly 5. The first lifting mechanism 242 is used to drive the plurality of lifting units 243 to move longitudinally, so that the lifting units 243 lift the step shaft on the bearing assembly 5 upward away from the bearing assembly 5. The lifting unit 243 includes a lifting plate 2431 and a plurality of second support seats 2432. The plurality of second support plates are all mounted on the lifting plate 2431, and the second support seats 2432 are provided with arc grooves 2433 that cooperate with the step shaft. The first transverse movement mechanism 241 includes a first moving plate 2411 and a first oil cylinder 2412. The first moving plate 2411 is slidably disposed on the soaking box 23. The first oil cylinder 2412 is fixedly disposed on the soaking box 23, and its telescopic end is connected to the first moving plate 2411. The first lifting mechanism 242 includes a second moving plate 2421 and a second oil cylinder 2422. The second oil cylinder 2422 is fixedly mounted on the first moving plate 2411, and its telescopic end penetrates the first moving plate 2411 and is connected to the second moving plate 2421. The lifting unit 243 is connected to the second moving plate 2421.

[0054] During use, cleaning liquid is preset in the immersion box 23, the feeding component 4 feeds the supporting component 5 into the immersion box 23, the ultrasonic generator 21 is started to generate an ultrasonic signal, and the transducer 22 converts the ultrasonic signal into mechanical vibration energy, and the step shaft in the supporting component 5 is cleaned by the cleaning liquid. After the step shaft is cleaned, the lifting unit 243 is driven by the first transverse movement mechanism 241 to move to the supporting component 5, and corresponds to the corresponding placement unit 51, and the lifting unit 243 is driven by the first lifting mechanism 242 to move upward to lift the step shaft out of the supporting component 5. At this time, the fitting between the step shaft and the supporting component 5 can be cleaned. After cleaning, the lifting component 24 drives the step shaft to reset.

[0055] Drying components: See also Figure 8-9 The drying assembly 3 includes a drying box 31, a drying fan 32, a water collecting tank 33 and a drain pipe 34. Two drying fans 32 are provided and are respectively connected to the two sides of the drying box 31. The water collecting tank 33 is fixedly installed in the drying box 31. One end of the drain pipe 34 is connected to the water collecting tank 33, and the other end passes through the drying box 31 and is arranged outside the drying box 31. The drying assembly 3 also includes a first box cover 35 and a telescopic cylinder 36. The first box cover 35 is hinged to the drying box 31. The telescopic cylinder 36 is rotatably installed on one side of the drying box 31, and its telescopic end is rotatably connected to the first box cover 35. The drying assembly 3 also includes a box door 37, and the box door 37 is hinged to one side of the drying box 31.

[0056] When in use, start the telescopic cylinder 36 to drive the first box cover 35 to rotate around the rotating connection between it and the drying box 31, rotate the first box cover 35 to open, place the supporting component 5 in the sump 33 through the feeding component 4, and then close the first box cover 35. Dry the supporting component 5 through the drying fan 32, collect the cleaning liquid dripping on the supporting component 5 through the sump 33, and finally discharge it through the drain pipe 34. Manually open the box door 37, and at this time, the limit component 513 can be adjusted to the limiting state of the stepped shaft.

[0057] Feeding components: See also Figure 1 and 10 The feeding assembly 4 includes a second transverse movement mechanism 41, a second lifting mechanism 42 and a hydraulic clamp 43. The second lifting mechanism 42 is installed on the second transverse movement mechanism 41. The hydraulic clamp 43 is connected to the second lifting mechanism 42. The hydraulic clamp 43 is used to clamp the bearing assembly 5; the second lifting mechanism 42 is used to drive the hydraulic clamp 43 and the bearing assembly 5 to move up and down; the second transverse movement mechanism 41 is used to drive the second lifting mechanism 42, the hydraulic clamp 43 and the bearing assembly 5 to move horizontally, so as to move the bearing assembly 5 from the outside into the cleaning assembly 2, or from the cleaning assembly 2 into the drying assembly 3. A handle 518 is provided on the mounting frame 511 to facilitate the hydraulic clamp 43 to clamp. The second transverse movement mechanism 41 includes a support frame 411, a third movable plate 412 and a third oil cylinder 413. The support frame 411 is set outside the soaking box 23 and the drying box 31. The third movable plate 412 is slidably mounted on the support frame 411. The third oil cylinder 413 is fixedly mounted on the support frame 411, and its telescopic end is connected to the third movable plate 412. The second lifting mechanism 42 includes a fourth movable plate 421 and a fourth oil cylinder 422. The fourth oil cylinder 422 is fixedly mounted on the third movable plate 412, and its telescopic end passes through the third movable plate 412 and is connected to the fourth movable plate 421. The hydraulic clamp 43 is mounted on the fourth movable plate 421.

[0058] When in use, the second lifting mechanism 42 is started to drive the hydraulic clamp 43 to move downward to clamp the handle 518 on the load-bearing component 5, and the hydraulic clamp 43 and the load-bearing component 5 are driven to move upward through the second lifting mechanism 42, and the second transverse movement mechanism 41 is started to drive the load-bearing component 5 to move above the cleaning component 2, and the load-bearing component 5 is placed in the cleaning component 2 for cleaning through the second lifting mechanism 42. After cleaning, the second lifting mechanism 42 and the second transverse movement mechanism 41 cooperate to move the load-bearing component 5 from the cleaning component 2 to the drying component 3 for drying. At this time, the hydraulic clamp 43 releases the load-bearing component 5 so that the first box cover 35 rotates and closes.

[0059] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A step shaft parts heat treatment processing equipment, characterized in that: It comprises a quenching furnace (1), a cleaning component (2), a drying component (3), a feeding component (4) and a bearing component (5), wherein: A bearing assembly (5) for placing a stepped shaft, which can be placed in the cleaning assembly (2), the drying assembly (3) and the quenching furnace (1); A cleaning component (2) is used to immerse and clean the stepped shaft placed in the bearing component (5); A drying component (3) is used to dry the stepped shaft after being cleaned by the cleaning component (2); The feeding assembly (4) is used to feed the bearing assembly (5) into the cleaning assembly (2), and is also used to move the bearing assembly (5) from the cleaning assembly (2) into the drying assembly (3).

2. The step shaft parts heat treatment processing equipment according to claim 1 is characterized in that: The bearing assembly (5) comprises a plurality of placement units (51) and a plurality of connection assemblies (52), and the plurality of placement units (51) are arranged in sequence from top to bottom, and two adjacent groups of the placement units (51) are connected via the connection assemblies (52).

3. The step shaft parts heat treatment processing equipment according to claim 2 is characterized in that: The placement unit (51) comprises a mounting frame (511), a plurality of first support seats (512) and a limiting assembly (513), wherein: A plurality of the first support seats (512) are mounted on the mounting frame (511) and are used to support the stepped shaft; The limiting assembly (513) cooperates with a plurality of the first supporting seats (512) and is used to limit the stepped shaft in the first supporting seat (512).

4. The step shaft parts heat treatment processing equipment according to claim 1 is characterized in that: The cleaning assembly (2) comprises an ultrasonic generator (21), a transducer (22), a soaking box (23) and a lifting assembly (24), wherein the lifting assembly (24) is slidably disposed on the soaking box (23), wherein: A soaking box (23) for containing cleaning liquid and for placing the carrying component (5); An ultrasonic generator (21), used for generating an ultrasonic signal; The transducer (22) is used to convert the ultrasonic signal into mechanical vibration energy, so that the cleaning liquid contained in the immersion box (23) cleans the stepped shaft; The lifting assembly (24) is used to lift the stepped shaft on the bearing assembly (5) to remove it from the bearing assembly (5), thereby allowing the cleaning liquid to clean the contact portion of the stepped shaft with the bearing assembly (5).

5. The step shaft parts heat treatment processing equipment according to claim 4 is characterized in that: The lifting assembly (24) comprises a first transverse movement mechanism (241), a first lifting mechanism (242) and a plurality of lifting units (243); the first lifting mechanism (242) is connected to the first transverse movement mechanism (241); the plurality of lifting units (243) are mounted on the first lifting mechanism (242); and the plurality of lifting units (243) are respectively arranged corresponding to the plurality of placement units (51), wherein: A first transverse movement mechanism (241) is used to drive a plurality of lifting units (243) to move transversely, thereby allowing the lifting units (243) to be inserted into the bearing assembly (5); The first lifting mechanism (242) is used to drive the plurality of lifting units (243) to move longitudinally, so that the lifting units (243) lift the step axis on the bearing assembly (5) upwardly away from the bearing assembly (5).

6. The step shaft parts heat treatment processing equipment according to claim 1 is characterized in that: The drying assembly (3) comprises a drying box (31), a drying fan (32), a water collecting tank (33) and a drainage pipe (34); two drying fans (32) are provided and are respectively connected to two sides of the drying box (31); the water collecting tank (33) is fixedly installed in the drying box (31); one end of the drainage pipe (34) is connected to the water collecting tank (33), and the other end passes through the drying box (31) and is provided outside the drying box (31).

7. The step shaft parts heat treatment processing equipment according to claim 1 is characterized in that: The feeding assembly (4) comprises a second transverse movement mechanism (41), a second lifting mechanism (42) and a hydraulic clamp (43), wherein the second lifting mechanism (42) is mounted on the second transverse movement mechanism (41), and the hydraulic clamp (43) is connected to the second lifting mechanism (42), wherein: A hydraulic clamp (43) for clamping the bearing assembly (5); A second lifting mechanism (42) is used to drive the hydraulic clamp (43) and the bearing assembly (5) to move up and down; The second transverse movement mechanism (41) is used to drive the second lifting mechanism (42), the hydraulic clamp (43) and the bearing assembly (5) to move transversely, thereby moving the bearing assembly (5) from the outside into the cleaning assembly (2), or from the cleaning assembly (2) into the drying assembly (3).

8. The step shaft parts heat treatment processing equipment according to claim 2 is characterized in that: The placement unit (51) further comprises four supporting feet (514) and four supporting columns (515), wherein the four supporting feet (514) are fixedly mounted on the lower surface of the installation frame (511), and the four supporting columns (515) are fixedly mounted on the upper surface of the installation frame (511), and each of the four supporting columns (515) is provided with a limiting column (516), and the four supporting feet (514) are provided with limiting holes (517) that cooperate with the limiting columns (516).

9. A heat treatment process for stepped shaft parts, characterized in that: include: S1: Place the stepped shaft in the bearing assembly, stack several placement units and connect them through the connecting assembly, and put the limit plate in the release state; S2: feeding the bearing assembly into the cleaning assembly through the feeding assembly, and immersing and cleaning the stepped shaft in the bearing assembly; S3: The cleaned load-bearing component is fed from the cleaning component to the drying component through the feeding component, and the stepped shaft on the load-bearing component is dried; S4: Use a forklift to transport the load-bearing component from the drying component to the quenching furnace for quenching; S5: The quenched load-bearing components are sent to the tempering furnace for tempering by a forklift.

10. A heat treatment process for stepped shaft parts according to claim 9, characterized in that: The step S2 comprises: S201: slowly placing the bearing assembly into a soaking box filled with cleaning liquid through a feeding assembly; S202: The ultrasonic generator emits an ultrasonic signal, and converts the ultrasonic signal into mechanical vibration energy through a transducer, so that the cleaning liquid cleans the stepped shaft; S203: Lift the stepped shaft upward from the bearing assembly through the lifting assembly, so that the cleaning liquid cleans the contact point between the stepped shaft and the first supporting seat, and resets the stepped shaft after the cleaning is completed.

Images