A heat treatment apparatus for machining cast steel parts

Abstract

This invention discloses a heat treatment device for processing cast steel parts, belonging to the field of cast steel casting technology. The proposed solution includes a heat treatment mechanism with a mold storage mechanism. The invention uses an electric hydraulic rod to push the outer cover downwards, causing the soft structural layers to align with the support platform, thus sealing the multi-layered outer frame. This allows for heat treatment via a heater and also provides insulation. Next, the outer cover drives a limiting frame upwards to the second outer frame position, moving the lower crossbar to the upper crossbar position. The limiting frame then continues upwards, disengaging from the lower crossbar, allowing the lower crossbar to move downwards under gravity. Finally, the limiting frame moves downwards again and engages with a spring and locking groove, smoothly separating the bottom outer frame and transferring it to the center of the support platform. This bottom-up approach facilitates sequential extraction from below, improving ease of removal.

Description

Technical Field

[0001] This invention relates to the field of casting technology for steel castings, and more particularly to a heat treatment apparatus for processing steel castings. Background Technology

[0002] Investment casting primarily involves creating a fusible model (also known as a mold or casting pattern) from a fusible material (such as wax or plastic). Several layers of a special refractory coating are then applied to this model. After drying and hardening to form a single, integral shell, the model is melted away from the shell using steam or hot water. The shell is then placed in a sand box, surrounded by dry sand. Finally, the mold is placed in a firing furnace for high-temperature firing (if a high-strength shell is used, the shell can be fired directly after demolding without further molding). After firing, molten metal is poured into the mold or shell to obtain the casting.

[0003] In the casting process of steel castings, heat treatment equipment plays a crucial role, responsible for heating the mold shell. To improve heat treatment efficiency and achieve batch processing, it is common practice to use a placement platform to simultaneously heat or hold multiple workpieces at a temperature. When batch heating is required, although the stacking operation of the placement platform itself is not complicated, it becomes particularly inconvenient when retrieving workpieces at the bottom. This is because, in order to remove the bottom workpieces, operators must remove the stacked platforms one by one, a process that is both tedious and laborious.

[0004] Even more challenging is the fact that after the heat treatment process, during the material unloading and stacking stage, operators need to expend enormous physical strength to move the high-temperature workpieces upwards layer by layer. This operation not only greatly increases the difficulty and labor intensity of the work, but may also lead to a decrease in work efficiency, becoming a significant factor restricting the smoothness of the production process and the improvement of production capacity.

[0005] To address the aforementioned problems, this invention proposes a heat treatment apparatus for machining cast steel parts. Summary of the Invention

[0006] The purpose of this invention is to address the problem in the casting process of steel parts where, although the stacking operation of the placement platform is not complex, it becomes particularly inconvenient when retrieving workpieces located at the bottom. This is because, in order to remove the bottom workpieces, operators must remove the stacked platforms one by one, a process that is both tedious and labor-intensive. Furthermore, during the unloading and stacking stages, operators need to exert considerable physical strength to move the high-temperature workpieces upward layer by layer. This operating method not only greatly increases the difficulty and labor intensity of the work but may also lead to a decrease in work efficiency, becoming a significant factor restricting the smoothness of the production process and the improvement of production capacity. Therefore, this invention proposes a heat treatment device for processing steel parts.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A heat treatment apparatus for processing cast steel parts includes a heat treatment mechanism, wherein a mold storage mechanism is provided on the heat treatment mechanism.

[0009] The heat treatment mechanism includes a support platform, and a stacking assembly is mounted on top of the support platform. Two adjustment components are provided on both sides of the stacking assembly. The two adjustment components on the left are positioned lower, and the two adjustment components on the right are positioned higher. When the mold storage mechanisms are stacked on both sides of the support platform, the adjustment components on the left correspond to the bottommost mold storage mechanism, and the adjustment components on the right correspond to the second layer of mold storage mechanism from the bottom up. A limit component is provided on one side of the adjustment components.

[0010] The mold storage mechanism includes a mold release assembly, and locking components are provided on both sides of the mold release assembly.

[0011] Preferably, two alignment frames are fixedly connected above the support platform.

[0012] Preferably, two horizontal guide rails are provided above the support platform, and four vertical guide rails are also provided above the support platform, with the vertical guide rails communicating with the horizontal guide rails.

[0013] Preferably, the stacking assembly includes a fixing frame, which is fixedly connected above the support platform. Two electro-hydraulic rods are fixedly installed above the fixing frame, and an outer cover is fixedly connected to the bottom end of the two electro-hydraulic rods. A heater is fixedly installed on the inner wall of the outer cover on the right side, and a soft structure layer is fixedly connected below the outer cover on the right side. The soft structure layer is located below the adjustment assembly.

[0014] Preferably, two alignment seats are fixedly connected to both sides of the inner wall of the outer cover, and an alignment groove is provided on one side of each alignment seat.

[0015] Preferably, the adjusting assembly includes a nut and a connecting bracket, the nut is fixedly mounted on the outer cover, the nut is internally threaded with a screw rod, and one end of the screw rod is fixedly connected to a handle;

[0016] The screw is rotatably mounted on the connecting frame via a bearing. Two telescopic rods are fixedly connected to one side of the connecting frame, and the two telescopic rods are fixedly connected to the side wall of the outer cover.

[0017] Preferably, the limiting component includes a guide sleeve, which is fixedly installed on the connecting frame. A limiting frame slides inside the guide sleeve. Two springs are fixedly connected to one side of the inner wall of the limiting frame. One end of each spring is fixedly connected to the guide sleeve. Both ends of the limiting frame are inclined surfaces.

[0018] Preferably, the mold-releasing assembly includes an outer frame, four locking blocks are fixedly connected to the upper part of the outer frame, and four locking sleeves are fixedly connected to the lower part of the outer frame, the size of the locking sleeves being adapted to the size of the locking blocks;

[0019] Alignment plates are fixedly connected to both sides of the outer frame, and vertical grids and multiple horizontal grids are fixedly connected inside the outer frame. The vertical grids pass through the horizontal grids to form multiple mold cavities.

[0020] Preferably, the positioning component includes an upper horizontal block, which is fixedly connected to the outer frame. The upper part of the upper horizontal block is inclined, and a positioning groove is formed below the upper horizontal block. Two guide rods are fixedly connected in the positioning groove. A connecting strip is fixedly connected to the bottom end of the two guide rods. A sliding sleeve is fitted on the guide rod, and a lower horizontal block is fixedly connected to the outside of the two sliding sleeves. The lower horizontal block has a conical structure.

[0021] A method of using a heat treatment apparatus for machining cast steel parts includes the following steps:

[0022] S1. When performing heat treatment on the mold, first assemble the mold in the mold cavity formed by the horizontal and vertical grids, and then slide it into the vertical guide rail through the ferrule so that the outer frame is located on the support platform.

[0023] S2. Then, the outer frame is pushed to the right via the horizontal guide rail, so that the outer frame contacts the alignment frame on the right side. Then, the outer frame is placed on the support platform via the vertical guide rail, and the electric hydraulic rod on the right side is extended. The electric hydraulic rod drives the outer cover to move downward, so that the outer cover drives the adjustment component and the limiting component to move downward. When the limiting frame moves downward and contacts the upper horizontal bar, the inclined surface of the upper horizontal bar presses against the limiting frame, so that the limiting frame drives the spring to deform. When the limiting frame is below the upper horizontal bar, the spring drives the limiting frame to lock into the locking groove. At this time, the electric hydraulic rod lifts the outer cover, so that the limiting component directly lifts the outer frame. Then, the outer frames are stacked downward in this manner.

[0024] S3. After the outer frame is stacked on the right side, the outer cover pulls the soft structure layer and joins it on the support platform. At this time, the mold inside the outer frame is heat treated by the heater.

[0025] S4. After heat treatment, the electric hydraulic rod pushes the outer cover downward again, causing the soft structure layer to shrink. At the same time, the limiting frame moves downward to below the lower crossbar. Then the outer cover is lifted, causing the limiting frame to drive the lower crossbar upward. When the lower crossbar moves upward and contacts the upper crossbar, the lower crossbar closes the locking groove. At this time, the limiting frame moves smoothly to the outer frame of the second layer. When the limiting frame passes the upper crossbar again, the lower crossbar is lifted downward by gravity and detaches from the upper crossbar. The limiting frame moves downward again and engages with the locking groove, separating the bottom outer frame. The outer cover is lifted to a certain height, and the bottom outer frame is slid to the left, and the molten material is poured into the mold.

[0026] S5. After pouring, push the outer frame to the left to the alignment frame position on the left. At the same time, push the outer frame of the heat treatment on the right to the left again and pour the molten material in the same way as described above. When stacking the outer frames on the left, use the stacking operation in the manner described in S2.

[0027] S6. After the outer frame is stacked on the left side, turn the screw with the handle to move the connecting frame. The connecting frame moves the limiting component to disengage the limiting frame from the slot. Then, retract the outer cover upwards to the top of the outer frame and transfer the stacked outer frame.

[0028] Compared with the prior art, the present invention provides a heat treatment apparatus for machining cast steel parts, which has the following beneficial effects:

[0029] 1. This heat treatment device for processing cast steel parts uses an electric hydraulic rod to push the outer cover downwards, causing the soft structural layers to merge with the support platform, thus sealing the multi-layered outer frame. This allows for heat treatment via a heater and also provides insulation. Next, the outer cover drives the limiting frame upwards to the second layer of the outer frame, moving the lower crossbar to the upper crossbar. The limiting frame then continues to move upwards, disengaging from the lower crossbar, allowing the lower crossbar to move downwards under gravity. Finally, the limiting frame moves downwards again and engages with the locking groove using a spring, smoothly separating the bottommost outer frame and transferring it to the center of the support platform. This bottom-up approach facilitates easy extraction from below, improving the convenience of removal.

[0030] 2. This heat treatment device for processing cast steel parts automatically positions the outer frame and outer cover by pushing the outer frame's sleeve into the vertical guide rail and then along the horizontal guide rail to contact the positioning frame. This improves operational convenience. Then, the outer cover is pushed down by an electric hydraulic rod, causing the outer cover to move downwards along the adjusting and limiting components. This creates a squeezing motion between the limiting frame and the upper horizontal bar. When the limiting frame is positioned below the upper horizontal bar, a spring causes the limiting frame to engage with the positioning groove, allowing the outer cover to be lifted directly upwards. In this manner, outer frames are stacked sequentially from bottom to top, achieving automatic stacking operations. This facilitates operation and saves physical labor.

[0031] 3. This heat treatment device for processing cast steel parts can lift the outer frame by pushing it to the right side of the support platform and then using a stacking assembly in conjunction with a limiting assembly. Layers can be stacked upwards sequentially. After heat treatment, the outer frame can be removed downwards sequentially using the stacking assembly, limiting assembly, and locking assembly, allowing the bottom layer to separate and be easily transferred to the left. After transfer, molten material can be poured into the mold and transferred to the left side of the support platform, where it can be stacked again. This continuous stacking operation improves efficiency. Furthermore, after heat treatment on the right side, stacking can be performed on the left side, and the stacked outer frame can be transferred to a fixed platform on the side via a vertical guide rail. This allows for staggered operations. After removing the right outer frame, the stacked outer frame can be directly transferred back to the right side, enabling continuous operation and further improving work efficiency. Attached Figure Description

[0032] Figure 1 This is a perspective view of a heat treatment apparatus for processing cast steel parts according to the present invention;

[0033] Figure 2 This is a cross-sectional perspective view of a heat treatment apparatus for processing cast steel parts according to the present invention;

[0034] Figure 3 This is a perspective view of the support platform of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0035] Figure 4 This is a perspective view of a stacked assembly of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0036] Figure 5 This is a top perspective view of the outer casing of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0037] Figure 6 This is a perspective view of the outer frame of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0038] Figure 7 This is a perspective view of the stacking of mold-releasing components in a heat treatment apparatus for processing cast steel parts according to the present invention;

[0039] Figure 8 This is a perspective view of the outer casing of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0040] Figure 9 This is a perspective view of the adjustment component of a heat treatment apparatus for processing cast steel parts according to the present invention.

[0041] Figure 10 This is a perspective view of the connecting frame of a heat treatment apparatus for processing cast steel parts according to the present invention;

[0042] Figure 11 This is a perspective view of the mold-releasing assembly of a heat treatment apparatus for machining cast steel parts according to the present invention.

[0043] Figure 12 This is a perspective view of the clamping assembly of a heat treatment device for processing cast steel parts according to the present invention.

[0044] In the diagram: 100, Heat treatment mechanism; 101, Support platform; 102, Stacking assembly; 1021, Fixing frame; 1022, Electro-hydraulic rod; 1023, Outer cover; 1024, Soft structure layer; 1025, Heater; 1026, Alignment groove; 1027, Alignment seat; 103, Horizontal guide rail; 104, Vertical guide rail; 105, Alignment frame; 106, Adjustment assembly; 1061, Nut; 1062, Handle; 1063, Screw; 1064, Telescopic rod; 1065, Connection Frame; 107. Limiting component; 1071. Limiting frame; 1072. Guide sleeve; 1073. Spring; 200. Mold storage mechanism; 201. Mold release component; 2011. Outer frame; 2012. Horizontal grid; 2013. Locking block; 2014. Locking sleeve; 2015. Alignment plate; 2016. Vertical grid; 202. Locking component; 2021. Upper horizontal stop; 2022. Locking groove; 2023. Guide rod; 2024. Sliding sleeve; 2025. Lower horizontal stop; 2026. Connecting strip. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Example 1: Refer to Figures 1-12 A heat treatment apparatus for processing cast steel parts includes a heat treatment mechanism 100, and a mold storage mechanism 200 is provided on the heat treatment mechanism 100.

[0048] The heat treatment mechanism 100 includes a support platform 101, which supports the outer frame 2011. A fixing platform can be mounted on one side of the support platform 101 to place the stacked outer frames 2011. Two alignment frames 105 are fixedly connected to the top of the support platform 101, which limit the outer frame 2011 so that the outer frame 2011 can smoothly align with the outer cover 1023. A stacking assembly 102 is mounted on the top of the support platform 101. The stacking assembly 102 includes a fixing frame 1021, which is fixedly connected to the top of the support platform 101. Two electro-hydraulic rods 1022 are fixedly installed on the top of the fixing frame 1021. The bottom ends of the two electro-hydraulic rods 1022 are fixedly connected to the outer cover 1023. The pressure rod 1022 can drive the outer cover 1023 to move up and down, so that the outer cover 1023 closes the outer frame 2011. At this time, heat treatment can be carried out by the heater 1025 to improve the heat treatment efficiency. The heater 1025 is fixedly installed on the inner wall of the right side of the outer cover 1023. A soft structure layer 1024 is fixedly connected to the lower part of the right side of the outer cover 1023. The soft structure layer 1024 can be a fabric layer. So when the soft structure layer 1024 contacts the support platform 101, the outer cover 1023 can also be adjusted downward. The soft structure layer 1024 is located below the adjustment component 106. Two alignment seats 1027 are fixedly connected to both sides of the inner wall of the outer cover 1023. One side of the alignment seat 1027 is provided with an alignment groove 1026. Both sides of the stacking component 102 are provided with Two adjusting components 106 are provided. Each adjusting component 106 includes a nut 1061 and a connecting bracket 1065. The nut 1061 is fixedly installed on the outer cover 1023. A screw 1063 is threadedly connected to the inside of the nut 1061. A handle 1062 is fixedly connected to one end of the screw 1063. The handle 1062 serves as the force application point, thereby controlling the threaded transmission between the screw 1063 and the nut 1061. This allows the screw 1063 to drive the limiting component 107 out of the locking groove 2022 via the connecting bracket 1065, thus removing the fixation to the outer frame 2011 and facilitating the vertical adjustment of the left side of the outer cover 1023. The screw 1063 is rotatably mounted on the connecting bracket 1065 via a bearing. Two telescopic rods are fixedly connected to one side of the connecting bracket 1065. 1064. The telescopic rod 1064 ensures the stable extension and retraction of the connecting frame 1065. The two telescopic rods 1064 are fixedly connected to the side wall of the outer cover 1023. The two adjusting components 106 on the left are set slightly lower, and the two adjusting components 106 on the right are set slightly higher. When the mold storage mechanisms 200 are stacked on both sides of the support platform 101, the adjusting components 106 on the left correspond to the bottommost mold storage mechanism 200, and the adjusting components 106 on the right correspond to the second layer of mold storage mechanisms 200 from the bottom up. A limiting component 107 is provided on one side of the adjusting component 106. The limiting component 107 includes a guide sleeve 1072, which is fixedly installed on the connecting frame 1065. The limiting frame 1071 slides inside the guide sleeve 1072.Two springs 1073 are fixedly connected to one side of the inner wall of the limiting frame 1071. The restoring force of the springs 1073 can drive the limiting frame 1071 to reset, so that the limiting frame 1071 engages with the locking groove 2022, which facilitates the subsequent lifting of the outer frame 2011. One end of the two springs 1073 is fixedly connected to the guide sleeve 1072. Both ends of the limiting frame 1071 are inclined. By making the ends of the limiting frame 1071 inclined, the limiting frame 1071 can smoothly compress against the upper crossbar 2021, so that the limiting frame 1071 can smoothly move down to correspond with the locking groove 2022.

[0049] The mold storage mechanism 200 includes a mold unloading assembly 201, which includes an outer frame 2011. Four locking blocks 2013 are fixedly connected to the upper part of the outer frame 2011, and four retaining sleeves 2014 are fixedly connected to the lower part of the outer frame 2011. When the outer frames 2011 are stacked, the locking blocks 2013 engage with the retaining sleeves 2014, thus maintaining accurate alignment between the outer frames 2011. Simultaneously, the retaining sleeves 2014 can also enter the horizontal guide rail 103 and the vertical guide rail 104, thereby guiding the movement of the outer frames 2011 and ensuring smooth alignment between the outer frames 2011 and the alignment frame 105. The size of the sleeve 2014 is adapted to the size of the clip 2013. Alignment plates 2015 are fixedly connected to both sides of the outer frame 2011. The alignment plates 2015 engage with the alignment grooves 1026, thus maintaining the alignment of the outer frame 2011. Vertical grids 2016 and multiple horizontal grids 2012 are fixedly connected inside the outer frame 2011. The vertical grids 2016 pass through the horizontal grids 2012 to form multiple mold cavities. The vertical grids 2016 and horizontal grids 2012 are combined to form mold cavities, allowing for the separate storage of molds. Both sides of the mold placement assembly 201... A locking assembly 202 is provided, including an upper horizontal stop 2021, which is fixedly connected to the outer frame 2011. The upper surface of the upper horizontal stop 2021 is sloped, and a locking groove 2022 is formed at the bottom of the upper horizontal stop 2021. Two guide rods 2023 are fixedly connected to the locking groove 2022, and a connecting strip 2026 is fixedly connected to the bottom end of the two guide rods 2023. A sliding sleeve 2024 is fitted on the guide rod 2023, and the sliding sleeve 2024 can slide smoothly up and down on the surface of the guide rod 2023, thereby allowing the lower horizontal stop 2025 to move smoothly. Furthermore, the lower crossbar 2025 is a conical surface, which allows the limiting frame 1071 to press against the lower crossbar 2025, enabling the limiting frame 1071 to move smoothly below the lower crossbar 2025. At the same time, the limiting frame 1071 rises, causing the lower crossbar 2025 to follow the movement and come into contact with the upper crossbar 2021. At this time, the limiting frame 1071 presses against the conical surface of the lower crossbar 2025 again, allowing the limiting frame 1071 to smoothly pass through the locking groove 2022 to complete the upward movement. The two sliding sleeves 2024 are externally fixedly connected to the lower crossbar 2025, which has a conical structure.

[0050] In this embodiment: the electric hydraulic rod 1022 pushes the outer cover 1023 downward, causing the soft structure layer 1024 to align with the support platform 101, thus sealing the multi-layer outer frame 2011. This allows for heat treatment via the heater 1025 and also provides insulation. Next, the outer cover 1023 moves the limiting frame 1071 downward below the lower crossbar 2025. Then, the limiting frame 1071 moves upward, causing the lower crossbar 2025 to contact the upper crossbar 2021, allowing the limiting frame 1071 to move from bottom to top to the second layer. At position 2011 of the outer frame, the limiting bracket 1071 moves the lower crossbar 2025 to position 2021. At this time, the limiting bracket 1071 continues to move upward and disengage from the lower crossbar 2025, causing the lower crossbar 2025 to move downward by gravity. Then, the limiting bracket 1071 moves downward again and engages with the locking groove 2022 in conjunction with the spring 1073. At this time, the bottom outer frame 2011 can be easily separated and moved to the middle of the support platform 101 to the left. By adopting the bottom-up method, it is convenient to pull out the outer frame from the bottom in sequence, which improves the ease of removal.

[0051] Example 2: Refer to Figures 3-4 and Figures 9-12 A heat treatment device for processing cast steel parts includes a support platform 101. Two horizontal guide rails 103 are provided above the support platform 101, and four vertical guide rails 104 are also provided above the support platform 101. The vertical guide rails 104 are connected to the horizontal guide rails 103.

[0052] The stacking assembly 102 includes a fixing frame 1021, which is fixedly connected to the top of the support platform 101. Two electro-hydraulic rods 1022 are fixedly installed on the top of the fixing frame 1021. An outer cover 1023 is fixedly connected to the bottom end of the two electro-hydraulic rods 1022. A heater 1025 is fixedly installed on the inner wall of the outer cover 1023 on the right side. A soft structure layer 1024 is fixedly connected below the outer cover 1023 on the right side. The soft structure layer 1024 is located below the adjustment assembly 106.

[0053] The limiting component 107 includes a guide sleeve 1072, which is fixedly installed on the connecting frame 1065. A limiting frame 1071 slides inside the guide sleeve 1072. Two springs 1073 are fixedly connected to one side of the inner wall of the limiting frame 1071. One end of the two springs 1073 is fixedly connected to the guide sleeve 1072. Both ends of the limiting frame 1071 are inclined surfaces.

[0054] The positioning assembly 202 includes an upper horizontal block 2021, which is fixedly connected to the outer frame 2011. The upper part of the upper horizontal block 2021 is set with an sloping surface, and a positioning groove 2022 is opened at the bottom of the upper horizontal block 2021. Two guide rods 2023 are fixedly connected in the positioning groove 2022. A connecting strip 2026 is fixedly connected to the bottom end of the two guide rods 2023. A sliding sleeve 2024 is sleeved on the guide rods 2023. A lower horizontal block 2025 is fixedly connected to the outside of the two sliding sleeves 2024. The lower horizontal block 2025 has a conical structure.

[0055] The mold-releasing assembly 201 includes an outer frame 2011. Four locking blocks 2013 are fixedly connected to the upper part of the outer frame 2011, and four locking sleeves 2014 are fixedly connected to the lower part of the outer frame 2011. The size of the locking sleeves 2014 is adapted to the size of the locking blocks 2013. Alignment plates 2015 are fixedly connected to both sides of the outer frame 2011. Vertical grids 2016 and multiple horizontal grids 2012 are fixedly connected inside the outer frame 2011. The vertical grids 2016 pass through the horizontal grids 2012 to form multiple mold cavities.

[0056] In this embodiment: by pushing the sleeve 2014 of the outer frame 2011 into the vertical guide rail 104 and then along the horizontal guide rail 103 to contact the positioning frame, the horizontal guide rail 103, in conjunction with the positioning frame, can achieve automatic positioning of the outer frame 2011 and the outer cover 1023, improving the ease of operation. Then, the outer cover 1023 is pushed down by the electric hydraulic rod 1022, causing the outer cover 1023 to drive the adjusting component 106 and the limiting component 107 to move downward, causing the limiting frame 1071 to generate a squeezing motion between it and the upper horizontal bar 2021. When the limiting frame 1071 is positioned below the upper horizontal bar 2021, the spring 1073 drives the limiting frame 1071 to engage with the positioning groove 2022, thereby allowing the outer cover 1023 to directly lift the outer frame 2011 upward. In this manner, the outer frames 2011 are stacked sequentially from bottom to top, realizing automatic stacking operation, which is convenient to operate and saves physical strength.

[0057] Example 3: Reference Figure 1-11 A heat treatment device for processing cast steel parts includes a heat treatment mechanism 100. The heat treatment mechanism 100 includes a support platform 101. A stacking assembly 102 is mounted on the top of the support platform 101. Two adjustment assemblies 106 are provided on both sides of the stacking assembly 102. The two adjustment assemblies 106 on the left side are positioned lower and the two adjustment assemblies 106 on the right side are positioned higher. When the mold storage mechanism 200 is stacked on both sides of the support platform 101, the adjustment assemblies 106 on the left side correspond to the bottommost mold storage mechanism 200, and the adjustment assemblies 106 on the right side correspond to the second layer of mold storage mechanism 200 from bottom to top. A limit assembly 107 is provided on one side of the adjustment assembly 106.

[0058] The mold storage mechanism 200 includes a mold release component 201, and a locking component 202 is provided on both sides of the mold release component 201.

[0059] In this embodiment: by pushing the outer frame 2011 to the right side of the support platform 101, and then using the stacking component 102 in conjunction with the limiting component 107, the outer frame 2011 can be lifted upwards and stacked sequentially. After heat treatment, the outer frame 2011 can be removed downwards sequentially by using the stacking component 102 in conjunction with the limiting component 107 and the locking component 202, so that the bottom outer frame 2011 can be separated and smoothly transferred to the left. After the transfer, molten material can be poured into the mold and transferred to the left side of the support platform 101. At this time, stacking can be carried out again. Stacking operations can be continuously realized in sequence, improving operating efficiency. Moreover, after heat treatment on the right side, stacking can also be carried out on the left side, and the stacked outer frame 2011 can be transferred to the fixed platform set next to it via the vertical guide rail 104. This allows for staggered operations. After the outer frame 2011 on the right side is removed, the stacked outer frame 2011 can be directly transferred to the right side again, thereby realizing continuous operation and further improving work efficiency.

[0060] A method of using a heat treatment apparatus for machining cast steel parts includes the following steps:

[0061] S1. When performing heat treatment on the mold, the mold is first assembled in the mold cavity formed by the horizontal grid 2012 and the vertical grid 2016, and then slid into the vertical guide rail 104 through the sleeve 2014 so that the outer frame 2011 is located on the support table 101.

[0062] S2. Then, the outer frame 2011 is pushed to the right via the horizontal guide rail 103, so that the outer frame 2011 contacts the alignment frame 105 on the right side. Then, the outer frame 2011 is placed on the support platform 101 via the vertical guide rail 104, and the electric hydraulic rod 1022 on the right side extends. The electric hydraulic rod 1022 drives the outer cover 1023 to move downward, so that the outer cover 1023 drives the adjusting component 106 and the limiting component 107 to move downward. When the limiting frame 1071 moves downward and upward... When the horizontal bar 2021 contacts, the inclined surface of the upper horizontal bar 2021 presses against the limiting frame 1071, causing the limiting frame 1071 to deform the spring 1073. When the limiting frame 1071 is below the upper horizontal bar 2021, the spring 1073 causes the limiting frame 1071 to be inserted into the locking groove 2022. At this time, the electric hydraulic rod 1022 lifts the outer cover 1023, causing the limiting component 107 to directly lift the outer frame 2011. Then, the outer frames 2011 are stacked downwards in this manner.

[0063] S3. After the outer frame 2011 is stacked on the right side, the outer cover 1023 drives the soft structure layer 1024 to merge on the support platform 101. At this time, the heater 1025 performs heat treatment on the mold inside the outer frame 2011.

[0064] S4. After heat treatment, the electric hydraulic rod 1022 pushes the outer cover 1023 downward again, causing the soft structure layer 1024 to shrink. At the same time, the limiting frame 1071 moves downward to below the lower crossbar 2025. Then the outer cover 1023 is lifted, causing the limiting frame 1071 to drive the lower crossbar 2025 upward. When the lower crossbar 2025 contacts the upper crossbar 2021, the lower crossbar closes the locking groove 2022. At this time, the limiting frame 1071 moves smoothly to the outer frame 2011 of the second layer. When the limiting frame 1071 crosses the upper crossbar 2021 again, the lower crossbar 2025 is lifted downward by gravity and detaches from the upper crossbar 2021. The limiting frame 1071 is lowered again and engages with the locking groove 2022, causing the bottom outer frame 2011 to separate. The outer cover 1023 is lifted to a certain height, and the bottom outer frame 2011 is slid to the left, and the molten material is poured into the mold.

[0065] S5. After pouring, push it to the left to the alignment frame 105 position on the left side. At the same time, push the heat-treated outer frame 2011 on the right side to the left again and pour the molten material in the same way as described above. When stacking the outer frame 2011 on the left side, use the stacking operation in the manner described in S2.

[0066] S6. After the outer frame 2011 is stacked on the left side, rotate the screw 1063 by the handle 1062, so that the screw 1063 drives the connecting frame 1065 to move. The connecting frame 1065 drives the limiting component 107 to move, so that the limiting frame 1071 disengages from the slot 2022. Then, the outer cover 1023 is retracted upwards above the outer frame 2011, and then the stacked outer frame 2011 is transferred.

[0067] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A heat treatment apparatus for machining cast steel parts, comprising a heat treatment mechanism, characterized in that, The heat treatment unit is equipped with a mold storage mechanism; The heat treatment mechanism includes a support platform, and a stacking assembly is mounted on top of the support platform. Two adjustment components are provided on both sides of the stacking assembly. The two adjustment components on the left are positioned lower, and the two adjustment components on the right are positioned higher. When the mold storage mechanism is stacked on both sides of the support platform, the adjustment components on the left correspond to the bottommost mold storage mechanism, and the adjustment components on the right correspond to the second layer of mold storage mechanism from the bottom up. A limit component is provided on one side of the adjustment component. The mold storage mechanism includes a mold unloading assembly, and locking components are provided on both sides of the mold unloading assembly; The stacking assembly includes a mounting frame, which is fixedly connected to the top of the support platform. Two electro-hydraulic rods are fixedly installed on the top of the mounting frame. An outer cover is fixedly connected to the bottom of the two electro-hydraulic rods. A heater is fixedly installed on the inner wall of the outer cover on the right side. A soft structure layer is fixedly connected to the bottom of the outer cover on the right side. The soft structure layer is located below the adjustment assembly. The adjusting assembly includes a nut and a connecting frame, and the limiting assembly includes a guide sleeve. The guide sleeve is fixedly installed on the connecting frame, and a limiting frame slides inside the guide sleeve. Two springs are fixedly connected to one side of the inner wall of the limiting frame, and one end of each spring is fixedly connected to the guide sleeve. Both ends of the limiting frame are inclined surfaces. The mold-releasing assembly includes an outer frame, and the positioning assembly includes an upper horizontal block. The upper horizontal block is fixedly connected to the outer frame. The upper part of the upper horizontal block is set with an sloping surface, and a positioning groove is opened at the bottom of the upper horizontal block. Two guide rods are fixedly connected in the positioning groove. Connecting strips are fixedly connected to the bottom ends of the two guide rods. Sliding sleeves are fitted on the guide rods. A lower horizontal block with a conical structure is fixedly connected to the outside of the two sliding sleeves.

2. A heat treatment apparatus for machining cast steel parts according to claim 1, characterized in that, Two alignment frames are fixedly connected to the top of the support platform.

3. A heat treatment apparatus for machining cast steel parts according to claim 2, characterized in that, Two horizontal guide rails are provided above the support platform, and four vertical guide rails are also provided above the support platform. The vertical guide rails are connected to the horizontal guide rails.

4. A heat treatment apparatus for machining cast steel parts according to claim 3, characterized in that, Two alignment seats are fixedly connected to both sides of the inner wall of the outer cover, and an alignment groove is opened on one side of the alignment seat.

5. A heat treatment apparatus for machining cast steel parts according to claim 4, characterized in that, The nut is fixedly installed on the outer cover, and the internal thread of the nut is connected to a screw rod, with a handle fixedly connected to one end of the screw rod. The screw is rotatably mounted on the connecting frame via bearings. Two telescopic rods are fixedly connected to one side of the connecting frame, and the two telescopic rods are fixedly connected to the side wall of the outer cover.

6. A heat treatment apparatus for machining cast steel parts according to claim 5, characterized in that, Four clips are fixedly connected to the top of the outer frame, and four clips are fixedly connected to the bottom of the outer frame. The size of the clips is adapted to the size of the clips. Alignment plates are fixedly connected to both sides of the outer frame, and vertical grids and multiple horizontal grids are fixedly connected inside the outer frame. The vertical grids pass through the horizontal grids to form multiple mold cavities.

7. A heat treatment apparatus for machining cast steel parts according to claim 6, characterized in that, A method of using a heat treatment apparatus for machining cast steel parts includes the following steps: S1. When performing heat treatment on the mold, first assemble the mold in the mold cavity formed by the horizontal and vertical grids, and then slide it into the vertical guide rail through the ferrule so that the outer frame is located on the support platform. S2. Then, the outer frame is pushed to the right via the horizontal guide rail, so that the outer frame contacts the alignment frame on the right side. Then, the outer frame is placed on the support platform via the vertical guide rail, and the electric hydraulic rod on the right side is extended. The electric hydraulic rod drives the outer cover to move downward, so that the outer cover drives the adjustment component and the limiting component to move downward. When the limiting frame moves downward and contacts the upper horizontal bar, the inclined surface of the upper horizontal bar presses against the limiting frame, so that the limiting frame drives the spring to deform. When the limiting frame is below the upper horizontal bar, the spring drives the limiting frame to lock into the locking groove. At this time, the electric hydraulic rod lifts the outer cover, so that the limiting component directly lifts the outer frame. Then, the outer frames are stacked downward in this manner. S3. After the outer frame is stacked on the right side, the outer cover pulls the soft structure layer and joins it on the support platform. At this time, the mold inside the outer frame is heat treated by the heater. S4. After heat treatment, the electric hydraulic rod pushes the outer cover downward again, causing the soft structure layer to shrink. At the same time, the limiting frame moves downward to below the lower crossbar. Then the outer cover is lifted, causing the limiting frame to drive the lower crossbar upward. When the lower crossbar moves upward and contacts the upper crossbar, the lower crossbar closes the locking groove. At this time, the limiting frame moves smoothly to the outer frame of the second layer. When the limiting frame passes the upper crossbar again, the lower crossbar is lifted downward by gravity and detaches from the upper crossbar. The limiting frame moves downward again and engages with the locking groove, separating the bottom outer frame. The outer cover is lifted to a certain height, and the bottom outer frame is slid to the left, and the molten material is poured into the mold. S5. After pouring, push the outer frame to the left to the alignment frame position on the left. At the same time, push the outer frame of the heat treatment on the right to the left again and pour the molten material in the same way as described above. When stacking the outer frames on the left, use the stacking operation in the manner described in S2. S6. After the outer frame is stacked on the left side, turn the screw with the handle to move the connecting frame. The connecting frame moves the limiting component to disengage the limiting frame from the slot. Then, retract the outer cover upwards to the top of the outer frame and transfer the stacked outer frame.

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