Agricultural implement press quenching device and press quenching method

Abstract

The application relates to the technical field of press quenching devices, and discloses an agricultural implement press quenching device and a press quenching method, wherein the agricultural implement press quenching device comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die bottom plate, and an upper die surface insert block which is detachably installed on the upper die bottom plate and is used for product forming and product quenching, and the upper die surface insert block is provided with a first water outlet hole which is communicated with cooling liquid; the lower die assembly comprises a lower die bottom plate, and a lower die surface insert block which is detachably installed on the lower die bottom plate and is used for product forming and product quenching, and the lower die surface insert block is provided with a second water outlet hole which is communicated with cooling liquid; wherein the lower die bottom plate is further provided with a water outlet for recycling the cooling liquid. The agricultural implement press quenching device reduces device cost, improves cooling speed and enhances quenching performance.

Description

Technical Field

[0001] This application belongs to the technical field of pressure quenching devices, specifically relating to a pressure quenching device for agricultural machinery and a pressure quenching method using the agricultural machinery pressure quenching device. Background Technology

[0002] In the process of agricultural mechanization, the innovation and upgrading of agricultural machinery is a crucial driving force for improving production efficiency. Reversible plows, as key supporting implements for tractors, have seen continuous market demand growth due to their high operating efficiency and excellent tillage effect. Among them, the slats, as the core tillage component of the plow body, directly bear the impact of soil and stones, and their performance directly affects the overall operating quality and service life of the machine. Therefore, slat plows must not only possess excellent wear resistance and impact resistance, but also meet high standards in shape accuracy and dimensional stability to ensure that the reversible plow can evenly till and effectively cover the soil during operation, while reducing maintenance and replacement costs.

[0003] Quenching is an important metal strengthening process that significantly improves the hardness and strength of a workpiece by heating, holding at a certain temperature, and then rapidly cooling it. Applying quenching to grating bars helps to alter their surface structure, enhancing their resistance to soil friction and crop abrasion, thereby greatly extending their service life, reducing replacement frequency, and ensuring the continuity of agricultural production.

[0004] The existing integrated pressure quenching device uses the method of immersing the forming mold as a whole into the water tank for quenching. This immersion quenching method is prone to forming an air film on the surface of the quenched product, resulting in an unsatisfactory quenching effect. In addition, this solution requires a dedicated lifting drive mechanism to realize the mold entering and leaving the water tank as a whole, which not only increases the complexity of the equipment structure, but also increases the manufacturing cost and maintenance difficulty. Summary of the Invention

[0005] The purpose of this application is to provide a pressure quenching device for agricultural machinery, which aims to reduce device costs, increase cooling speed, and enhance quenching performance.

[0006] To achieve the above objectives, this application provides a pressure quenching device for agricultural machinery, comprising an upper mold assembly and a lower mold assembly, wherein the upper mold assembly includes: Upper mold base plate; The upper mold surface insert is detachably installed on the upper mold base plate and used for product forming and product quenching. The upper mold surface insert has a first water outlet hole that communicates with the coolant. The lower mold assembly includes: Lower mold base plate; The lower mold surface insert is detachably installed on the lower mold base plate and used for product forming and product quenching. The lower mold surface insert has a second water outlet hole that communicates with the coolant. The lower mold base plate is also provided with an outlet for recovering the coolant.

[0007] In some embodiments, the upper model surface insert is provided with a first cooling channel inside, and the first water outlet is connected to the first cooling channel; The lower model surface insert has a second cooling channel inside, and the second water outlet is connected to the second cooling channel.

[0008] In some embodiments, the upper mold base plate is provided with a first water inlet channel communicating with the first cooling channel, and the upper mold assembly further includes a first water inlet pipe for conveying the coolant to the first water inlet channel; The lower mold base plate is provided with a second water inlet channel communicating with the second cooling channel, and the lower mold assembly also includes a second water inlet pipe for conveying the coolant to the second water inlet channel.

[0009] In some embodiments, there are multiple first water inlet channels, and the first water inlet pipe includes a first main water inlet pipe and multiple first branch water inlet pipes, with the multiple first branch water inlet pipes connected to the multiple first water inlet channels one by one. There are multiple second water inlet channels, and the second water inlet pipe includes a second main water inlet pipe and multiple second branch water inlet pipes. The multiple second branch water inlet pipes are connected to the multiple second water inlet channels one by one.

[0010] In some embodiments, both the first cooling channel and the second cooling channel are multiple and arranged vertically.

[0011] In some embodiments, the upper model insert has a plurality of crisscrossing first water channels on its molding surface, and the first water outlet is located at the intersection of the first water channels. The lower model insert has multiple crisscrossing second water channels on its molding surface, and the second water outlet is located at the intersection of the second water channels.

[0012] In some embodiments, the lower mold assembly includes a filter screen that is mounted on the lower mold base plate and covers the outlet.

[0013] In some embodiments, the lower mold assembly further includes a plurality of feeding positioners, which are mounted on the lower mold base plate; And / or, the upper mold assembly further includes multiple mold guide sleeves, and the lower mold assembly further includes multiple mold guide pillars, the mold guide pillars corresponding one-to-one with the mold guide sleeves and providing guiding engagement.

[0014] In some embodiments, the upper mold assembly further includes an upper mold cover, which is mounted on the upper mold base plate and surrounds the outside of the upper mold surface insert; And / or, the lower mold assembly further includes a lower mold cover, which is installed on the lower mold base plate and surrounds the outside of the lower mold surface insert.

[0015] A second aspect of this application provides a pressure quenching method, wherein the pressure quenching method employs the agricultural machinery pressure quenching device described above, and includes: Step 1: Place the heated raw material into the lower mold assembly; Step 2: Start the press and drive the upper mold assembly to move downward, so that the upper mold surface insert and the lower mold surface insert press against each other to complete the workpiece forming; Step 3: Coolant is introduced into the agricultural machinery quenching device, so that the coolant flows out from the first water outlet and the second water outlet and comes into direct contact with the workpiece to complete the workpiece quenching.

[0016] The agricultural machinery press quenching device according to the present invention includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base plate and an upper mold surface insert detachably mounted on the upper mold base plate. The upper mold surface insert has a first water outlet hole communicating with the coolant. The lower mold assembly includes a lower mold base plate and a lower mold surface insert detachably mounted on the lower mold base plate. The lower mold surface insert has a second water outlet hole communicating with the coolant. The lower mold base plate also has a water outlet for recycling the coolant. The coolant flows out from the water outlet hole on the insert to quench and cool the workpiece between the upper and lower molds. The coolant is recycled through the water outlet of the lower mold base plate. Due to the adoption of the technical means of detachably fixing the insert to the base plate and having a water outlet hole on the insert for coolant to flow out, the insert can achieve product quenching while forming the product. This effectively solves the technical problems of complex equipment structure, unsatisfactory quenching effect and low efficiency in the existing immersion quenching technology, and achieves the technical effects of reducing equipment manufacturing difficulty and rapid cooling at the moment of forming.

[0017] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of an embodiment of the agricultural machinery pressure quenching device of the present invention; Figure 2 This is a schematic diagram of the structure of an embodiment of the upper mold component of the present invention; Figure 3 This is a top view of the upper mold assembly of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the structure of an embodiment of the lower mold assembly of the present invention; Figure 6 This is a top view of the lower mold assembly of the present invention; Figure 7 for Figure 6 A magnified view of a section at point B in the middle.

[0019] Explanation of reference numerals in the attached figures 100 agricultural machinery pressure quenching device; Upper mold assembly 10; upper mold base plate 11; upper mold surface insert 12; first water outlet 121; first water channel 122; first water inlet pipe 13; first main water inlet pipe 131; first branch water inlet pipe 132; mold guide sleeve 14; upper mold cover 15; Lower mold assembly 20; lower mold base plate 21; lower mold surface insert 22; second water outlet 221; second water channel 222; water outlet 23; second water inlet pipe 24; second main water inlet pipe 241; second branch water inlet pipe 242; drain pipe 25; filter screen 26; feeding positioner 27; mold guide pillar 28; lower mold cover 29. Detailed Implementation

[0020] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] In the embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0023] This invention proposes an agricultural machinery pressing and quenching device 100 for stamping and forming of workpieces and surface heat treatment.

[0024] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0025] In some specific embodiments of the present invention, such as Figures 1 to 7As shown, the agricultural machinery pressing and quenching device 100 includes an upper mold assembly 10 and a lower mold assembly 20. Specifically, the upper mold assembly 10 includes an upper mold base plate 11 and an upper mold surface insert 12. The upper mold surface insert 12 is detachably installed on the upper mold base plate 11 and is used for product forming and product quenching. The upper mold surface insert 12 has a first water outlet 121 communicating with the coolant. The lower mold surface insert 22 is detachably installed on the lower mold base plate 21 and is used for product forming and product quenching. The lower mold surface insert 22 has a second water outlet 221 communicating with the coolant. The lower mold base plate 21 also has a water outlet 23 for recovering the coolant.

[0026] Specifically, such as Figure 2 and Figure 3 As shown, the upper mold base plate 11 serves as the mounting base for the upper mold components and is the main frame of the upper mold structure. The lower surface of the upper mold base plate 11 has mounting slots or positioning holes for accommodating and positioning the upper mold surface insert 12. The upper mold surface insert 12 is detachably fixed to the upper mold base plate 11 using threaded fasteners. Similarly, as... Figure 5 and Figure 6 As shown, the lower mold base plate 21 serves as the mounting base for the lower mold components and is the main frame of the lower mold structure. The lower surface of the lower mold base plate 21 has mounting grooves or positioning holes for accommodating and positioning the lower mold surface insert 22. The lower mold surface insert 22 is detachably fixed to the lower mold base plate 21 using threaded fasteners. This detachable connection method facilitates the quick replacement of the corresponding upper mold surface insert 12 according to different specifications or models of the agricultural machinery implements to be processed, thereby improving the equipment's versatility and maintenance convenience, and reducing production costs.

[0027] The upper mold surface insert 12 and the lower mold surface insert 22 are inserts that directly contact the product during molding. The lower surface of the upper mold surface insert 12 and the upper surface of the lower mold surface insert 22 are respectively machined into molding working surfaces that match the contour of the upper surface of the workpiece. To achieve rapid quenching of the high-temperature workpiece after molding, the upper mold surface insert 12 has at least one first cooling channel inside. The inlet of the first cooling channel is connected to the external coolant through a pipe, and the outlet is connected to the first water outlet 121 opened on the upper mold surface insert 12. Similarly, the lower mold surface insert 22 has at least one second cooling channel inside. The inlet of the second cooling channel is connected to the external coolant through a pipe, and the outlet is connected to the second water outlet 221 opened on the lower mold surface insert 22.

[0028] In embodiments of the present invention, such as Figure 4 and Figure 7As shown, both the first and second cooling channels are multiple and vertically arranged. These channels are arrayed within the insert to cover the entire forming surface area, ensuring uniform cooling of the workpiece surface by the coolant. Specifically, the inlets of the multiple cooling channels are located on the surfaces where the insert and the base plate meet. A seal is used to achieve a tight fit between the insert and the base plate. This sealing design ensures that all coolant enters the cooling channels under pressure. Corresponding water inlet channels are provided on the base plate to introduce coolant into each channel inlet. The outlets of the multiple cooling channels are located on the forming surface of the insert. When the coolant flows in through the cooling channel inlets, flows downwards or upwards along the vertical channels, it flows directly out from the outlet holes on the forming surface and contacts the workpiece surface that is in close contact with the insert's forming surface. During the die-clamping process, the forming surfaces of the upper and lower inserts are in close contact with the workpiece surface. At this time, the coolant flows out through the first water outlet 121 and the second water outlet 221 and directly contacts the workpiece surface, ensuring that while the workpiece is being pressed and formed, the heat on the workpiece surface can be carried away evenly and quickly, thus achieving rapid quenching.

[0029] In this embodiment of the invention, the product surface is machined as an integral insert. This insert must ensure both the product's shape and the function of partial quenching. Therefore, the upper mold surface insert 12 and the lower mold surface insert 22 are made of hot-formed steel with resistance to thermal deformation and high hardness. The product surface is machined with high precision using CNC machining to ensure that the insert maintains dimensional stability and resists thermal fatigue under repeated high-temperature stamping and rapid quenching conditions, while also meeting the wear resistance and lifespan requirements for long-term use. The insert is fixed to the mold base plate via a detachable connection. This split-structure design reduces the difficulty and cost of mold manufacturing and facilitates quick insert replacement and routine maintenance. Furthermore, by quickly replacing the corresponding inserts for different specifications of agricultural machinery grids, the versatility and applicability of the pressure quenching device can be effectively improved.

[0030] Because the agricultural machinery pressing and quenching device 100 combines the cooling part for quenching with the mold part for forming, the interval between the forming process and the quenching process is short. Cooling can begin at the moment of forming, and a fluid coolant is used for quenching. Compared with the traditional immersion quenching method, it has higher cooling efficiency and more uniform cooling effect, which helps to improve the surface hardening quality and overall mechanical properties of the workpiece.

[0031] like Figure 2 and Figure 3As shown, the upper mold base plate 11 is provided with a first water inlet channel communicating with the first cooling channel. The upper mold assembly 10 also includes a first water inlet pipe 13 for supplying coolant to the first water inlet channel. Specifically, the first water inlet channel passes through the upper mold base plate 11 and forms an inlet end and an outlet end on the upper mold base plate 11. A water inlet connector is welded to the upper mold base plate 11 at the inlet end corresponding to the first water inlet channel. The first water inlet pipe 13 is connected to the water inlet connector by threads. The outlet end of the first water inlet channel is connected to the inlet end of the first cooling channel of the upper mold surface insert 12. In order to achieve a uniform cooling effect and ensure that the coolant flows evenly in the first cooling channel, multiple first water inlet channels are provided to achieve zoned cooling control of different parts of the upper mold surface insert 12 and avoid uneven cooling affecting the quenching effect. To achieve orderly liquid supply to multiple first water inlet channels, the first water inlet pipe 13 adopts a branch pipeline design and includes a first main water inlet pipe 131 and multiple first branch water inlet pipes 132, with each branch water inlet pipe 132 corresponding to one of the multiple first water inlet channels. The first main water inlet pipe 131 is connected to external coolant, and the inlet ends of the multiple branch water inlet pipes 132 are all connected in parallel to the first main water inlet pipe 131, while the outlet ends are connected to the inlet ends of the multiple first water inlet channels one by one via threaded fasteners. Specifically, the multiple first water inlet channels are arranged at intervals along the length of the upper mold base plate 11. Each first water inlet channel has a first liquid inlet and a first liquid outlet. The first liquid inlet is located on the side of the upper mold base plate 11, and the first liquid outlet is located on the contact surface where the upper mold base plate 11 and the upper mold surface insert 12 fit together. Understandably, in the same first water inlet channel, the number of first liquid inlets and first liquid outlets can be in a one-to-one correspondence, or one first liquid inlet can correspond to multiple first liquid outlets. Specifically, there is one first liquid inlet connected to the outlet end of the first water inlet pipe 132, while there can be one or more first liquid outlets. When there is only one first liquid outlet, a unique flow channel is formed inside the first water inlet channel. When there are multiple first liquid outlets, multiple flow channels are formed inside the first water inlet channel through diversion. Through the pipeline diversion design, the coolant can enter multiple first water inlet channels and first cooling flow channels in different areas simultaneously, so as to achieve uniform cooling of the upper model surface insert 12 and thus improve the quenching effect of the workpiece.

[0032] Similarly, as Figure 5 and Figure 6As shown, the lower mold base plate 21 is provided with a second water inlet channel communicating with the second cooling channel. The lower mold assembly 20 also includes a second water inlet pipe 24 for supplying coolant to the second water inlet channel. Specifically, the second water inlet channel passes through the lower mold base plate 21 and forms an inlet end and an outlet end on the lower mold base plate 21. A water inlet connector is welded to the lower mold base plate 21 at the inlet end corresponding to the second water inlet channel. The second water inlet pipe 24 is connected to the water inlet connector by threads. The outlet end of the second water inlet channel is connected to the inlet end of the second cooling channel of the lower mold surface insert 22. In order to achieve a uniform cooling effect and ensure that the coolant flows evenly in the second cooling channel, multiple second water inlets are provided to achieve zoned cooling control of different parts of the lower mold surface insert 22 and avoid uneven cooling affecting the quenching effect. To achieve orderly liquid supply to multiple second water inlet channels, the second water inlet pipe 24 adopts a branch pipeline design and includes a second main water inlet pipe 241 and multiple second branch water inlet pipes 242, with each branch water inlet pipe 242 corresponding to a different second water inlet channel. The second main water inlet pipe 241 is connected to external coolant, and the inlet ends of the multiple branch water inlet pipes 242 are all connected in parallel to the second main water inlet pipe 241, while their outlet ends are connected to the inlet ends of the multiple second water inlet channels one by one via threaded fasteners. Specifically, the multiple second water inlet channels are arranged at intervals along the length of the lower mold base plate 21. Each second water inlet channel has a second liquid inlet and a second liquid outlet. The second liquid inlet is located on the side of the lower mold base plate 21, and the second liquid outlet is located on the contact surface where the lower mold base plate 21 and the lower mold surface insert 22 fit together. Understandably, in the same second water inlet channel, the number of second liquid inlets and second liquid outlets can be in a one-to-one correspondence, or one second liquid inlet can correspond to multiple second liquid outlets. Specifically, there is one second liquid inlet connected to the outlet end of the second water inlet pipe 242, while there can be one or more second liquid outlets. When there is only one second liquid outlet, a unique flow channel is formed inside the second water inlet channel. When there are multiple second liquid outlets, multiple flow channels are formed inside the second water inlet channel through diversion. Through the pipeline diversion design, the coolant can enter multiple second water inlet channels and second cooling flow channels in different areas simultaneously, so as to achieve uniform cooling of the lower model surface insert 22 and thus improve the quenching effect of the workpiece.

[0033] To achieve orderly recovery and recycling of coolant and prevent coolant accumulation in the working area, the lower mold base plate 21 is provided with a drainage channel communicating with the outlet 23. The lower mold assembly 20 also includes a drain pipe 25 communicating with the drainage channel. The inlet end of the drainage channel corresponds to and communicates with the outlet 23 on the lower mold base plate 21, and the outlet end of the drainage channel extends to the side or bottom surface of the lower mold base plate 21. A drain connector is welded to the lower mold base plate 21 at the outlet end of the corresponding drainage channel, and the drain pipe 25 is connected to the drain connector by threads. To improve drainage efficiency and increase coolant flowability, multiple outlets 23, drainage channels, and drain pipes 25 are provided and are connected in a one-to-one manner to ensure smooth discharge of coolant. In some specific embodiments, there are four outlets 23, which are spaced apart along the length of the lower mold base plate 21. Four drainage channels are provided inside the lower mold base plate 21. The inlet end of the drainage channel communicates with the outlet 23, and the outlet end of the drainage channel is threadedly connected to the drain pipe 25 through a drain connector.

[0034] like Figure 5 and Figure 6 As shown, the lower mold assembly 20 includes a filter screen 26, which is installed on the lower mold base plate 21 and covers the outlet 23. To prevent oxide scale, workpiece debris, or impurities generated during the quenching process from entering the drainage system with the coolant, causing blockage of the drainage channel or affecting the recycling of the coolant, this embodiment of the invention adds a filter structure to the lower mold assembly 20. Specifically, the filter structure is the filter screen 26. After the coolant is filtered through the filter screen 26, it flows back to the water tank through the drain pipe 25, realizing the recycling of the quenching coolant.

[0035] like Figure 5 and Figure 6 As shown, the lower mold assembly 20 includes multiple feeding positioners 27, which are mounted on the lower mold base plate 21. The feeding positioners 27 are used to control the feeding accuracy of the product raw materials, ensuring that the feeding is controlled within a certain range each time, thereby ensuring the stability of the production process and the consistency of the products.

[0036] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the upper mold assembly 10 also includes multiple mold guide sleeves 14, and the lower mold assembly 20 also includes multiple mold guide pillars 28. The mold guide pillars 28 correspond one-to-one with the mold guide sleeves 14 and are guided and fitted together. The mold guide pillars 28 are fixedly installed on the upper surface of the lower mold base plate 21 and extend vertically upwards. The mold guide sleeves 14 are fixedly installed on the upper mold base plate 11, and their inner holes are adapted to the outer diameter of the corresponding mold guide pillars 28. During the closing process of the upper and lower molds, the mold guide pillars 28 gradually insert into the corresponding mold guide sleeves 14. Through their sliding fit, the upper mold surface insert 12 and the lower mold surface insert 22 can be accurately aligned, ensuring repeatability and positioning accuracy, thereby ensuring the stability of the molded product. The number of mold guide sleeves 14 and mold guide pillars 28 can be two or four. Taking mold guide sleeve 14 as an example, when there are two mold guide sleeves 14, the mold guide sleeves 14 are fixedly installed at two opposite corners of the lower mold base plate 21. When there are four mold guide sleeves 14, the mold guide sleeves 14 are fixedly installed at all four apex corners of the mold guide sleeves 14. The mold guide pillars 28 and mold guide sleeves 14 are in a one-to-one correspondence, and their installation positions are the same as those of the mold guide sleeves 14, which will not be elaborated here.

[0037] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the upper mold assembly 10 also includes an upper mold cover 15, which is mounted on the upper mold base plate 11 and surrounds the outer side of the upper mold surface insert 12; the lower mold assembly 20 also includes a lower mold cover 29, which is mounted on the lower mold base plate 21 and surrounds the outer side of the lower mold surface insert 22. The lower mold cover 29 and the upper mold cover 15 reduce heat radiation during the quenching process and prevent quenching cooling water from splashing. The lower mold cover 29 and the upper mold cover 15 are made of heat-resistant material and are placed around the outer periphery of the insert to form a physical barrier.

[0038] Furthermore, to improve the quenching effect, water channels for guiding the flow of coolant are provided on the forming surfaces of both the upper mold surface insert 12 and the lower mold surface insert 22, such as... Figure 4 and Figure 7As shown, the upper model insert 12 has multiple crisscrossing first water channels 122 on its molding surface, and the first water outlet 121 is located at the intersection of the first water channels 122. The lower model insert 22 has multiple crisscrossing second water channels 222 on its molding surface, and the second water outlet 221 is located at the intersection of the second water channels 222. Taking the first cooling channel 122 as an example, the first cooling channel 122 includes a first directional cooling channel opened along the length direction of the upper model surface insert 12 and a second directional cooling channel opened along the width direction of the upper model surface insert 12. Multiple first and second directional cooling channels are provided, forming an interlaced grid structure on the forming surface. A first water outlet 121 is located at the intersection of the first and second directional cooling channels. After the coolant flows out from the cooling channel outlet, it enters the first cooling channel 122 and diffuses outwards along the grid-like cooling channels, thereby achieving coolant coverage of the entire forming surface. This embodiment of the invention ensures the fluidity of the cooling water through the water outlet and cooling channels, achieving quenching of the upper and lower surfaces of the workpiece. The quenching cooling in this embodiment of the invention uses a flowing coolant. The coolant is uniformly contacted with the workpiece through the first water outlet 121, the second water outlet 221, and the water channel on the surface of the insert. At the same time, the specific dimensions of the water outlet and the water channel can be designed according to the actual quenching requirements to achieve control of the coolant flow rate and ensure the controllability of quenching.

[0039] The present invention also proposes a pressure quenching method, which adopts the agricultural machinery pressure quenching device according to the above-described embodiments. The specific structure of the agricultural machinery pressure quenching device is as described in the above embodiments. Since the pressure quenching method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0040] Specifically, the pressure quenching method includes: Step 1: Place the heated raw material into the lower mold assembly 20; Step 2: Start the press and drive the upper mold assembly 10 to move downward, so that the upper mold surface insert 12 and the lower mold surface insert 22 press against each other to complete the workpiece forming; Step 3: Coolant is introduced into the agricultural machinery quenching device 100, so that the coolant flows out from the first water outlet 121 and the second water outlet 221 and comes into direct contact with the workpiece to complete the workpiece quenching.

[0041] Understandably, in the agricultural machinery press-quenching device 100, the forming process is achieved by the upper die assembly 10 and the lower die assembly 20 through stamping, while the heat treatment process is achieved through cooling channels embedded inside the upper and lower die inserts. The forming process and the heat treatment process are functionally independent and can be executed separately or sequentially. Specifically, the agricultural machinery press-quenching device 100 can perform the forming process alone or the heat treatment process alone, or it can complete the stamping first, and then immediately start the heat treatment process after the workpiece is fully formed to achieve rapid quenching of the workpiece surface. The following is a detailed description of the different working processes of the agricultural machinery press-quenching device 100.

[0042] Example 1: Agricultural machinery pressure quenching device 100 is used for direct pressure quenching.

[0043] This embodiment includes the following steps: confirming the product model and raw materials → heating the raw materials → feeding the raw materials and confirming accurate positioning → the press slide descends and the upper mold presses down → the product is formed and quenched → completing pressure holding and the press slide ascends → the mold is fully opened and the parts are manually removed → checking the frame assembly.

[0044] Specifically, confirming the product model and raw materials refers to manually selecting the production parameters corresponding to the product model based on production needs and verifying the correctness of the raw materials. Raw material heating refers to sending the product raw materials into a heating furnace, heating them to the set temperature, and holding them at that temperature for a certain time. Accurate raw material feeding and positioning confirmation refers to manually removing the raw materials after the holding time and accurately placing them into the mold cavity using the feeding positioner 27. Press slide descent and upper mold pressing refers to starting the press, moving the slide and upper mold downwards, during which the mold guide post 28 contacts the mold guide sleeve 14 first to ensure the positional accuracy of the mold when closed, thereby stabilizing the formed workpiece. Product forming and quenching refers to the mold surface insert contacting the product after the mold is fully closed to ensure complete forming; the press sends a bottom signal, activating the coolant system, and water flows over the workpiece surface for quenching. Impurities are then filtered through the lower mold filter screen 26, and the coolant is recovered for recycling. Completing pressure holding and press slide upward refers to the press maintaining the set pressure and keeping the mold closed during quenching to control the amount of part deformation; after the pressure holding time reaches the set requirement, quenching is complete, the press slide moves upward, and the mold opens. "Mold fully open, manual removal" refers to manually removing the product from the mold cavity after the press slide reaches its highest point. "Inspection and framing" refers to inspecting the surface quality and molding condition of the product; once it passes inspection, it is framed and put into storage.

[0045] Example 2: Agricultural machinery pressure quenching device 100 is used for heat treatment of workpieces.

[0046] This embodiment includes the following steps: changing different mold cavity inserts → feeding the workpiece and confirming accurate positioning → the press slide moves down and the upper mold presses down → quenching the workpiece → completing pressure holding and the press slide moves up → the mold is fully opened and the workpiece is manually removed → taking samples for metallographic inspection.

[0047] Specifically, changing different mold cavity inserts refers to replacing the corresponding mold cavity inserts according to production needs to achieve heat treatment processing of workpieces with different shapes. Workpiece feeding and positioning confirmation refers to removing the raw material after heat preservation and accurately placing it into the mold cavity using a mold locator. Press slide descent and upper mold pressing refers to starting the press, moving the slide and upper mold downwards, with the mold guide pillars and guide sleeves contacting first during the descent to ensure positional accuracy when the mold closes. Workpiece forming and quenching refers to the mold surface insert contacting the workpiece after the mold is fully closed, and the coolant system starting to quench the workpiece. Holding pressure and press slide ascending refers to the press maintaining the set pressure and keeping the mold closed during quenching to control part deformation; after the holding time reaches the set requirement, quenching is complete, the press slide ascends, and the mold opens. Mold fully opening and manual removal refers to manually removing the product from the mold cavity after the press slide reaches its highest point. Metallographic sampling refers to taking metallographic samples from the inner surface, center, and outer surface of the workpiece, and then observing the metallographic morphology, microstructure distribution, and grain size of different parts through a metallographic microscope after etching treatment.

[0048] Example 3: Agricultural machinery pressing and quenching device 100 is used for forming workpieces.

[0049] This embodiment includes the following steps: confirming the product model and raw materials → heating the raw materials → feeding the raw materials and confirming accurate positioning → the press slide descends and the upper mold presses down → product forming → completing pressure holding and the press slide ascends → the mold is fully opened and the parts are manually removed → checking the frame assembly.

[0050] Specifically, confirming the product model and raw materials refers to manually selecting the production parameters corresponding to the product model based on production needs and verifying the correctness of the raw materials. Raw material heating refers to sending the product raw materials into a heating furnace, heating them to the set temperature, and holding them at that temperature for a certain time. Accurate raw material feeding and positioning confirmation refers to manually removing the raw materials after the holding period and accurately placing them into the mold cavity using the feeding positioner 27. Press slide descent and upper mold pressing refers to starting the press, with the slide and upper mold moving downwards. During this process, the mold guide post 28 contacts the mold guide sleeve 14 first to ensure the positional accuracy when the mold closes, thereby stabilizing the formed workpiece. Product forming refers to the mold surface insert contacting the product after the mold is fully closed, ensuring complete forming. Pressure holding and press slide upward movement refers to maintaining the set pressure after the press sends the bottom signal. After the pressure holding time reaches the set requirement, the press slide moves upward, and the mold opens. Mold fully open and manual removal refers to manually removing the product from the mold cavity after the press slide reaches its highest point. Inspection and framing refers to inspecting the product's surface quality and forming state; after passing inspection, the product is framed and stored.

[0051] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A pressure quenching device for agricultural implements, comprising an upper mold assembly (10) and a lower mold assembly (20), characterized in that, The upper mold assembly (10) includes: Upper mold base plate (11); The upper mold surface insert (12) is detachably installed on the upper mold base plate (11) and used for product forming and product quenching. The upper mold surface insert (12) has a first water outlet (121) that communicates with the coolant. The lower mold assembly (20) includes: Lower mold base plate (21); The lower mold surface insert (22) is detachably installed on the lower mold base plate (21) and used for product forming and product quenching. The lower mold surface insert (22) is provided with a second water outlet (221) that communicates with the coolant. The lower mold base plate (21) is also provided with an outlet (23) for recovering the coolant.

2. The agricultural machinery pressure quenching device according to claim 1, characterized in that, The upper model surface insert (12) is provided with a first cooling channel inside, and the first water outlet (121) is connected to the first cooling channel; The lower model surface insert (22) is provided with a second cooling channel inside, and the second water outlet (221) is connected to the second cooling channel.

3. The agricultural machinery pressure quenching device according to claim 2, characterized in that, The upper mold base plate (11) is provided with a first water inlet channel communicating with the first cooling channel, and the upper mold assembly (10) further includes a first water inlet pipe (13) for conveying the coolant to the first water inlet channel. The lower mold base plate (21) is provided with a second water inlet channel communicating with the second cooling channel, and the lower mold assembly (20) also includes a second water inlet pipe (24) for conveying the coolant to the second water inlet channel.

4. The agricultural machinery pressure quenching device according to claim 3, characterized in that, There are multiple first water inlet channels. The first water inlet pipe (13) includes a first main water inlet pipe (131) and multiple first branch water inlet pipes (132). The multiple first branch water inlet pipes (132) are connected to the multiple first water inlet channels one by one. There are multiple second water inlet channels. The second water inlet pipe (24) includes a second main water inlet pipe (241) and multiple second branch water inlet pipes (242). The multiple second branch water inlet pipes (242) are connected to the multiple second water inlet channels one by one.

5. The agricultural machinery pressure quenching device according to claim 2, characterized in that, Both the first cooling channel and the second cooling channel are multiple and arranged vertically.

6. The agricultural machinery pressure quenching device according to claim 5, characterized in that, The upper model insert (12) has multiple crisscrossing first water channels (122) on its molding surface, and the first water outlet (121) is located at the intersection of the first water channels. The lower model insert (22) has multiple intersecting second water channels (222) on its molding surface, and the second water outlet (221) is located at the intersection of the second water channels (222).

7. The agricultural machinery press-quenching device according to any one of claims 1 to 6, characterized in that, The lower mold assembly (20) includes a filter screen (26), which is installed on the lower mold base plate (21) and covers the outlet (23).

8. The agricultural machinery press-quenching device according to any one of claims 1 to 6, characterized in that, The lower mold assembly (20) also includes a plurality of feeding positioners (27), which are installed on the lower mold base plate (21). And / or, the upper mold assembly (10) further includes a plurality of mold guide sleeves (14), and the lower mold assembly (20) further includes a plurality of mold guide pillars (28), the mold guide pillars (28) and the mold guide sleeves (14) are corresponding one to one and guided together.

9. The agricultural machinery press-quenching device according to any one of claims 1 to 6, characterized in that, The upper mold assembly (10) also includes an upper mold cover (15), which is installed on the upper mold base plate (11) and surrounds the outside of the upper mold surface insert (12); And / or, the lower mold assembly (20) further includes a lower mold cover (29), which is installed on the lower mold base plate (21) and surrounds the outside of the lower mold surface insert (22).

10. A pressure quenching method, characterized in that, The pressure quenching method employs the agricultural machinery pressure quenching device according to any one of claims 1 to 9, and includes: Step 1: Place the heated raw material into the lower mold assembly (20); Step 2: Start the press and drive the upper mold assembly (10) to move downward, so that the upper mold surface insert (12) and the lower mold surface insert (22) press against each other to complete the workpiece forming; Step 3: Coolant is introduced into the agricultural machinery quenching device, so that the coolant flows out from the first water outlet (121) and the second water outlet (221) and comes into direct contact with the workpiece to complete the workpiece quenching.

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