Casting device for automobile gearbox shell

Abstract

The invention discloses an automobile gearbox shell casting device, and relates to the technical field of automobile shell casting, the automobile gearbox shell casting device comprises a door-shaped support, the inner wall of the door-shaped support is fixedly provided with a lower mold through a plurality of connecting rods, the bottom surface of the lower mold is provided with a bottom plate, an upper mold is arranged above the lower mold, and the upper mold is fixedly connected with the door-shaped support. An air cylinder is fixedly installed on the top face of the door-shaped support, and the output end of the air cylinder is connected with the top face of the upper die. The cooling adjusting assembly is arranged in the lower mold, the cooling adjusting assembly comprises a main cooling pipe, the distance between the cooling pipe and the casting shell can be dynamically adjusted by arranging the cooling adjusting assembly, and the casting quality of the gearbox shell is remarkably optimized by combining real-time temperature and thickness detection; and aiming at the problem of local overheating or supercooling caused by wall thickness difference, the device can adaptively adjust the cooling intensity, so that a thick-wall area is quickly cooled, and a thin-wall area is prevented from being supercooled.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile housing casting, and specifically to a casting device for an automobile transmission housing. Background Art

[0002] The transmission housing, which is a structure for installing a transmission drive mechanism and its accessories, mainly generates speed and distance changes through different gear combinations and hydraulic systems inside it, so as to achieve a change in rotational speed. At present, the transmission housing is mainly obtained by casting, that is, a closed polyhedral structure with a certain shape is used as the mold of the preformed part, and the casting material (usually aluminum alloy) heated into a liquid is introduced into the mold. After the liquid casting material cools, a formed housing blank or part is obtained.

[0003] The cooling system of the traditional transmission housing casting mold uses evenly arranged cooling channels, and the coolant circulates at a constant flow rate. This design can maintain a certain effect in the production of castings with uniform wall thickness, but when facing modern complex transmission housings, problems occur frequently. In actual production, the wall thickness of the transmission housing varies significantly. The thick-walled area is prone to local overheating due to insufficient cooling, forming shrinkage porosity; the thin-walled area often suffers from thermal cracking due to excessive cooling. These problems seriously damage the quality and performance of the castings, resulting in low production yield and high cost. The existing temperature control technologies mostly use uniform cooling channels and are difficult to adapt to complex wall thickness distributions. Some improvement schemes optimize the cooling effect by increasing the number of cooling pipes or adjusting the flow rate, but these methods do not solve the fundamental problem of matching the cooling intensity with the wall thickness difference. The slow heat dissipation in the thick-walled area leads to an extended solidification time, increasing the risk of shrinkage porosity defects; excessive cooling in the thin-walled area exacerbates the thermal stress, inducing thermal cracking and affecting the mechanical properties of the castings. In addition, the traditional cooling system lacks a real-time monitoring and feedback mechanism and cannot dynamically adjust the cooling intensity to adapt to the temperature changes in each area of the housing. During the casting process, factors such as temperature fluctuations and unstable flow rates of the coolant further exacerbate the non-uniformity of the temperature field, resulting in internal tissue defects and dimensional deviations of the castings

[0004] Therefore, based on the above retrieval and combined with the existing technology, a casting device for an automobile transmission housing is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a casting device for an automobile transmission housing to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An automobile transmission housing casting device, comprising: a portal bracket, the inner wall of the portal bracket is fixedly installed with a lower mold through a plurality of connecting rods, the bottom surface of the lower mold is provided with a bottom plate, an upper mold is arranged above the lower mold, the top surface of the portal bracket is fixedly installed with a cylinder, and the output end of the cylinder is connected to the top surface of the upper mold; a cooling adjustment component, the cooling adjustment component is arranged inside the lower mold, and the cooling adjustment component includes: a main cooling pipe, the main cooling pipe is fixedly installed on the inner wall of the lower mold, the main cooling pipe is U-shaped, both side walls of the main cooling pipe are fixedly installed with rectangular blocks, and rectangular grooves are opened on the side walls of the two rectangular blocks. The cooling adjustment component further includes adjustment parts, and multiple groups of adjustment parts are arranged and are respectively arranged in the two rectangular grooves; a detection component, the detection component is arranged in the lower mold and is used to measure the temperature and thickness of the lower mold; a circulation component, the circulation component is arranged on the portal bracket.

[0008] Further, the adjustment part includes: two limiting rods, the two limiting rods are fixedly installed inside the rectangular groove, a sliding block is slidably installed on the outer surface of the limiting rod, a second cooling pipe is arranged on the side wall of the sliding block, a hose is arranged between the second cooling pipe and the main cooling pipe, and an annular electromagnet is fixedly installed on the top surface of the limiting rod, and the annular electromagnet cooperates with the sliding block.

[0009] Further, the detection component includes: two connecting blocks, the two connecting blocks are respectively fixedly installed on the inner wall of the lower mold, moving grooves are opened on the adjacent surfaces of the two connecting blocks, a plurality of circular electromagnets are fixedly installed on the inner walls of the two moving grooves, and moving blocks are slidably installed in the two moving grooves.

[0010] Further, the detection component further includes: a fixing plate, the fixing plate is fixedly installed on the adjacent surfaces of the two moving blocks, temperature sensors are fixedly installed on both sides of the top surface of the fixing plate, and an ultrasonic thickness gauge is fixedly installed on one side of each of the two temperature sensors.

[0011] Further, the circulation component includes: a liquid storage tank, the liquid storage tank is fixedly installed on the front side wall of the portal bracket, a partition plate is fixedly installed on the left side wall of the liquid storage tank, a centrifugal pump is fixedly installed on the top surface of the partition plate, and a coolant cooler is fixedly installed on the front side wall of the portal bracket and on one side of the liquid storage tank.

[0012] Further, the circulation component further includes: a first connecting pipe disposed between the liquid storage tank and the first connecting pipe for delivering the coolant in the liquid storage tank to the centrifugal pump. A second connecting pipe is disposed between one side of the centrifugal pump and the main cooling pipe, and the second connecting pipe is used to deliver the coolant in the centrifugal pump to the main cooling pipe. A third connecting pipe is disposed between the other side of the coolant cooler and the main cooling pipe and is used to deliver the coolant in the main cooling pipe to the coolant cooler. A fourth connecting pipe is disposed between the coolant cooler and the liquid storage tank, and the fourth connecting pipe is used to deliver the coolant in the coolant cooler to the liquid storage tank.

[0013] Further, a distribution box is fixedly installed on the left side wall of the portal bracket, and the distribution box is used to supply power to the equipment.

[0014] Further, a controller is fixedly installed on the right side wall of the portal bracket, and a processor is fixedly installed on one side of the controller.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, by providing a cooling adjustment component, the distance between the cooling pipe and the casting shell can be dynamically adjusted. Combining real-time temperature and thickness detection, the casting quality of the transmission housing is significantly optimized. For the problems of local overheating or overcooling caused by wall thickness differences, the device can adaptively adjust the cooling intensity, enabling the thick-walled area to dissipate heat quickly and the thin-walled area to avoid excessive cooling, thereby effectively reducing shrinkage porosity and hot cracking defects and improving the overall structural uniformity of the casting. At the same time, the closed-loop control system dynamically responds to temperature changes through intelligent algorithms to ensure the stability and reliability of the casting process and greatly improve the product yield rate.

[0017] 2. In the present invention, an integrated coolant circulation and intelligent feedback mechanism is adopted to achieve efficient energy utilization. The coolant is quickly cooled and reused through a precise temperature control module during circulation, significantly reducing energy consumption. The automated detection and adjustment functions reduce the need for manual intervention, not only improving production efficiency but also extending the service life of the mold, and are suitable for large-scale continuous production of various types of shells, with significant economic benefits and industrial application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the left side structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the right side structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the rear side structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the split structure of the lower mold and the bottom plate of the present invention;

[0022] Figure 5 Schematic diagram of the internal structure of the lower mold of the present invention;

[0023] Figure 6 Schematic diagram of the overall structure of the detection component of the present invention;

[0024] Figure 7 Schematic diagram of the overall structure of the cooling adjustment component of the present invention;

[0025] Figure 8 Schematic diagram of the bottom view of the rectangular block of the present invention.

[0026] In the figure: 1, gantry bracket; 2, connecting rod; 3, lower mold; 4, bottom plate; 5, upper mold; 6, cylinder; 7, main cooling pipe; 8, rectangular block; 9, rectangular groove; 10, limiting rod; 11, sliding block; 12, second cooling pipe; 13, hose; 14, annular electromagnet; 15, connecting block; 16, moving groove; 17, circular electromagnet; 18, moving block; 19, fixing plate; 20, temperature sensor; 21, ultrasonic thickness gauge; 22, liquid storage tank; 23, partition; 24, centrifugal pump; 25, connecting pipe one; 26, connecting pipe two; 27, coolant cooler; 28, connecting pipe three; 29, connecting pipe four; 30, distribution box; 31, controller; 32, processor. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In a typical implementation manner of the present application, please refer to Figures 1 to 8 As shown, a casting device for an automotive transmission housing includes: a gantry bracket 1, the inner wall of the gantry bracket 1 is fixedly installed with a lower mold 3 through a plurality of connecting rods 2, the top surface of the lower mold 3 is provided with an automotive transmission housing, the bottom surface of the lower mold 3 is provided with a bottom plate 4, an upper mold 5 is arranged above the lower mold 3, the top surface of the gantry bracket 1 is fixedly installed with a cylinder 6, the output end of the cylinder 6 is connected to the top surface of the upper mold 5, when the cylinder 6 is started, the upper mold 5 will synchronously expand and contract with the expansion and contraction of the output end of the cylinder 6, the left side wall of the gantry bracket 1 is fixedly installed with a distribution box 30 for supplying power to the device, the right side wall of the gantry bracket 1 is fixedly installed with a controller 31, and a processor 32 is fixedly installed on one side of the controller 31;

[0029] A cooling adjustment component, the cooling adjustment component is arranged inside the lower mold 3, and the cooling adjustment component includes:

[0030] The main cooling pipe 7 is fixedly installed on the inner wall of the lower mold 3. The main cooling pipe 7 is U-shaped. Rectangular blocks 8 are fixedly installed on both side walls of the main cooling pipe 7. Rectangular grooves 9 are formed in the side walls of the two rectangular blocks 8. The cooling adjustment assembly further includes adjustment members, and multiple groups of adjustment members are provided and are respectively arranged in the two rectangular grooves 9;

[0031] The detection assembly is arranged in the lower mold 3 and is used to measure the temperature and thickness of the lower mold 3;

[0032] The circulation assembly is arranged on the gantry bracket 1.

[0033] As a preferred implementation manner in this embodiment, please refer to Figure 7 and Figure 8 As shown, the adjustment member includes: limiting rods 10. There are two limiting rods 10, and the limiting rods 10 are fixedly installed inside the rectangular grooves 9. A sliding block 11 is slidably installed on the outer surface of the limiting rods 10. A second cooling pipe 12 is arranged on the side wall of the sliding block 11. A hose 13 is arranged between the second cooling pipe 12 and the main cooling pipe 7. An annular electromagnet 14 is fixedly installed on the top surface of the limiting rods 10, and the annular electromagnet 14 cooperates with the sliding block 11.

[0034] Through the above features, the distance between the second cooling pipe 12 and the automotive transmission housing can be adjusted. Specifically, when the detection assembly detects the thickness and temperature of the automotive transmission housing, when it detects that the local temperature of the automotive transmission housing is too high and exceeds the predetermined value, it will transmit the data to the processor 32, and the controller 31 activates the corresponding annular electromagnet 14 to make the annular electromagnet 14 adsorb the sliding block 11. When the sliding block 11 moves on the limiting rods 10, it achieves the effect of cooling, and the second cooling pipe 12 will move synchronously. On the contrary, when it detects that the local temperature of the automotive transmission housing is too low, the controller 31 will cut off the power supply of the annular electromagnet 14 or reduce the current, so that the sliding block 11 moves downward. When the sliding block 11 moves downward, the second cooling pipe 12 will move downward synchronously, and the second cooling pipe 12 will move away from the automotive transmission housing, thereby heating it up.

[0035] As a preferred implementation manner in this embodiment, please refer to Figure 6 and Figure 6As shown in the figure, the detection component includes: two connecting blocks 15, which are respectively and fixedly installed on the inner wall of the lower mold 3. Moving grooves 16 are formed on the adjacent surfaces of the two connecting blocks 15. A plurality of circular electromagnets 17 are fixedly installed on the inner walls of the two moving grooves 16. Moving blocks 18 are slidably installed in the two moving grooves 16. The detection component further includes: a fixing plate 19, which is fixedly installed on the adjacent surfaces of the two moving blocks 18. Temperature sensors 20 are fixedly installed on both sides of the top surface of the fixing plate 19. Ultrasonic thickness gauges 21 are fixedly installed on one side of the two temperature sensors 20.

[0036] Through the above features, the thickness and temperature of the automotive transmission housing can be detected. Specifically, during the casting process of the automotive transmission housing, the circular electromagnets 17 in the moving grooves 16 are energized in sequence to move the moving blocks 18. When the moving blocks 18 move, the fixing plate 19, as well as the temperature sensors 20 and ultrasonic thickness gauges 21 on the fixing plate 19, will all move. When the temperature sensors 20 and ultrasonic thickness gauges 21 move to the lower part of the automotive transmission housing, the moving blocks 18 will stop at this time, so as to detect the temperature and thickness of the automotive transmission housing. When it is found that the temperature exceeds the predetermined value, at this time, the temperature sensors 20 and ultrasonic thickness gauges 21 will transmit the data to the processor 32, and the controller 31 will control the adjusting member to adjust the second cooling pipe 12 according to the thickness and temperature of the automotive transmission housing;

[0037] It is worth mentioning that the specific step - by - step process of adjusting the second cooling pipe according to the thickness and temperature of the automotive transmission housing is as follows:

[0038] 1. The detection component is started

[0039] Temperature sensor 20: Real - time collect the temperature of the contact area between the lower mold 3 and the housing, with a measurement range of 0℃ - 600℃ and an accuracy of ±1℃.

[0040] Ultrasonic thickness gauge 21: Detect the local thickness of the housing with a resolution of 0.1mm and a scanning frequency of 10Hz.

[0041] Movement control: The circular electromagnets 17 are energized in sequence to drive the moving blocks 18 to slide along the moving grooves 16 at a speed of 5cm / s, covering twelve preset detection points (spacing 50mm) under the housing.

[0042] 2. Data transmission

[0043] The temperature and thickness data are transmitted to the processor 32 through the CAN bus of the controller 31, and the processing delay < 50ms.

[0044] Processor 32 preset threshold:

[0045] Temperature threshold: 250°C for the thick-wall area and 180°C for the thin-wall area;

[0046] Thickness threshold: ≥8 mm for the thick-wall area and ≤5 mm for the thin-wall area.

[0047] 3. Data Analysis and Decision Making

[0048] Temperature-Thickness Correlation Analysis

[0049] The processor 32 divides the area according to the thickness data:

[0050] If the thickness ≥8 mm → Marked as the thick-wall area, and the target temperature ≤250°C;

[0051] If the thickness ≤5 mm → Marked as the thin-wall area, and the target temperature ≤180°C.

[0052] Dynamic Mapping: Construct a two-dimensional matrix of the temperature field and thickness, and identify the hot spot area (temperature exceeding the standard by >10°C) and the cold spot area (temperature lower than the target value by >15°C).

[0053] 4. Adjustment Instruction Generation

[0054] Overheating scenario: When the temperature of a certain area > target value + 10°C, trigger the cooling enhancement instruction;

[0055] Overcooling scenario: When the temperature < target value - 15°C, trigger the cooling weakening instruction.

[0056] The instruction is sent to the corresponding adjusting part through the controller 31 (each group of adjusting parts corresponds to a detection point).

[0057] 5. Position Adjustment of the Second Cooling Pipe 12

[0058] Electromagnet Drive

[0059] Cooling enhancement: The controller 31 applies a 24VDC current to the annular electromagnet 14, generating a magnetic suction force of 150N, pulling the sliding block 11 to move up 10 mm along the limiting rod 10 (maximum stroke 20 mm), and making the second cooling pipe 12 approach the shell surface by 3 mm (initial distance 13 mm → 10 mm).

[0060] Cooling weakening: Reduce the current to 12VDC, the magnetic suction force weakens to 75N, the sliding block 11 moves down 5 mm due to gravity, and the second cooling pipe 12 moves away from the shell to 15 mm.

[0061] 6. Coolant Flow Rate Adjustment

[0062] The change in the position of the second cooling pipe 12 affects the local heat transfer efficiency:

[0063] When the distance is 10 mm, the cooling efficiency is increased by 40% (flow rate 2 L / min → 2.8 L / min);

[0064] When the distance is 15 mm, the cooling efficiency decreases by 30% (flow rate 2 L / min → 1.4 L / min).

[0065] Hose compensation: Hose 13 is made of silicone material, resistant to -50°C to 200°C, with a stretch rate of 200%, ensuring no leakage when the second cooling pipe moves.

[0066] 7. Dynamic feedback and closed-loop control

[0067] Real-time monitoring

[0068] The temperature sensor 20 updates data every 2 seconds, and the ultrasonic thickness gauge 21 scans the thickness every five seconds.

[0069] If the temperature fluctuation > ±5°C / min, trigger the high-frequency monitoring mode (temperature sampling rate 1 Hz, thickness sampling rate 2 Hz).

[0070] 8. PID parameter adjustment

[0071] The controller 31 adopts the fuzzy PID algorithm and dynamically adjusts parameters according to the error:

[0072] Proportional coefficient (Kp): 2.5 in the thick-wall area and 1.8 in the thin-wall area;

[0073] Integral time (Ti): 8 s in the thick-wall area and 12 s in the thin-wall area;

[0074] Derivative time (Td): 3 s in the thick-wall area and 5 s in the thin-wall area.

[0075] The output control quantity is converted into the electromagnet current (0 - 24V linear mapping).

[0076] 9. Coolant circulation and thermal balance

[0077] Circulation system operation

[0078] The centrifugal pump 24 drives the circulation of the coolant (50% ethylene glycol solution) at a speed of 2800 rpm, with a flow rate of 20 L / min and a pressure of 0.8 MPa.

[0079] The coolant cooler (27) maintains the outlet temperature at 25 ± 2°C, with a heat dissipation power of 5 kW.

[0080] Thermal load matching

[0081] The temperature rise of the coolant in the thick-wall area is 15°C (inlet 25°C → outlet 40°C);

[0082] The temperature rise in the thin-wall area is 8°C (inlet 25°C → outlet 33°C).

[0083] The coolant returns to the coolant cooler through connecting pipe three 28, and after being cooled down, it flows back to the liquid storage tank 22 through connecting pipe four 29, with a circulation period of 3 minutes.

[0084] 10. Abnormal Handling and Safety Mechanism

[0085] Over-temperature Protection

[0086] If the temperature in a certain area > 300 °C lasts for 10 seconds, an emergency shutdown is triggered:

[0087] The cylinder 6 raises the upper mold 5 to interrupt the casting;

[0088] The centrifugal pump (24) runs at full speed (35 L / min) for rapid cooling.

[0089] 11. Alarm for Thickness Deviation

[0090] If the thickness deviation > ±0.5 mm, the ultrasonic thickness gauge 21 sends an alarm signal to the controller 31 to indicate mold wear or abnormal positioning.

[0091] As a preferred implementation manner in this embodiment, please refer to Figures 1 to 3 As shown, the circulation component includes: a liquid storage tank 22, which is fixedly installed on the front side wall of the gantry bracket 1. A partition 23 is fixedly installed on the left side wall of the liquid storage tank 22. A centrifugal pump 24 is fixedly installed on the top surface of the partition 23. A coolant cooler 27 is fixedly installed on the front side wall of the gantry bracket 1 and on one side of the liquid storage tank 22. The circulation component further includes: a connecting pipe one 25, which is arranged between the liquid storage tank 22 and the connecting pipe one 25 for transporting the coolant in the liquid storage tank 22 to the centrifugal pump 24. A connecting pipe two 26 is arranged between the centrifugal pump 24 and one side of the main cooling pipe 7, and the connecting pipe two 26 is used to transport the coolant in the centrifugal pump 24 to the main cooling pipe 7. A connecting pipe three 28 is arranged between the coolant cooler 27 and the other side of the main cooling pipe 7 and is used to transport the coolant in the main cooling pipe 7 to the coolant cooler 27. A connecting pipe four 29 is arranged between the coolant cooler 27 and the liquid storage tank 22, and the connecting pipe four 29 is used to transport the coolant in the coolant cooler 27 to the liquid storage tank 22.

[0092] With the above features, the coolant can be recycled. Specifically, when casting the automotive transmission housing, the staff turns on the centrifugal pump 24 through the controller 31. At this time, the centrifugal pump 24 transports the coolant in the liquid storage tank 22 to the main cooling pipe 7 through the connecting pipe one 25 and the connecting pipe two 26. After that, during the process of the coolant in the main cooling pipe 7 passing through the automotive transmission housing, the temperature rises. At this time, it flows into the coolant cooler 27 through the connecting pipe three 28 for cooling, and then flows back to the liquid storage tank 22 through the connecting pipe four 29 to form a cycle.

[0093] Working principle:

[0094] During use, the operator first starts the distribution box 30 to supply power to the device, and the controller 31 and the processor 32 complete initialization. The cylinder 6 drives the upper mold 5 to press down, closing with the lower mold 3 to form a cavity, and starts casting the automotive transmission housing. The circular electromagnet 17 in the detection component is energized in sequence, driving the moving block 18 to slide along the moving groove 16 at a speed of 5 cm / s to cover 12 preset detection points (spacing 50 mm) below the housing. The temperature sensor 20 (measurement range 0°C to 600°C, accuracy ±1°C) on the fixed plate 19 collects the temperature of the contact area in real time, and the ultrasonic thickness gauge 21 scans the thickness of the housing with a resolution of 0.1 mm. The data is transmitted to the processor 32 through the CAN bus, and the processing delay < 50 ms. Thick wall area (≥8 mm): target temperature ≤ 250°C; thin wall area (≤5 mm): target temperature ≤ 180°C. When the temperature of a certain area > target value + 10°C, a cooling enhancement instruction is triggered; if the temperature < target value - 15°C, a cooling weakening instruction is triggered. The instruction is sent to the corresponding regulating part. The controller 31 applies a 24 VDC current to the annular electromagnet 14 to generate a magnetic suction force of 150 N, pulling the sliding block 11 to move up 10 mm along the limiting rod 10, bringing the second cooling pipe 12 closer to the housing to 10 mm (initial distance 13 mm), and the cooling efficiency is increased by 40% (flow rate 2 L / min → 2.8 L / min). When the current drops to 12 VDC, the magnetic suction force weakens to 75 N, the sliding block 11 moves down 5 mm, and the second cooling pipe 12 moves away from the housing to 15 mm, and the flow rate drops to 1.4 L / min. The hose 13 is made of silicone material (elongation rate 200%) to ensure no leakage during movement. The centrifugal pump 24 drives the coolant (50% ethylene glycol solution) at a speed of 2800 rpm, with a flow rate of 20 L / min and a pressure of 0.8 MPa. The coolant enters the main cooling pipe 7 through the connecting pipe two 26, and the temperature rises after absorbing heat: the temperature rise in the thick wall area is 15°C (inlet 25°C → outlet 40°C); the temperature rise in the thin wall area is 8°C (inlet 25°C → outlet 33°C). The high-temperature coolant enters the coolant cooler 27 through the connecting pipe three 28, is cooled to 25 ± 2°C, and then returns to the liquid storage tank 22 through the connecting pipe four 29 to complete a 3-minute cycle. The temperature sensor 20 updates the data every 2 seconds, and the ultrasonic thickness gauge 21 scans the thickness every 5 seconds. If the temperature fluctuation > ±5°C / min, switch to the high-frequency monitoring mode (temperature sampling rate 1 Hz, thickness 2 Hz). Proportional coefficient in the thick wall area is 2.5, integral time is 8 s, and differential time is 3 s; proportional coefficient in the thin wall area is 1.8, integral time is 12 s, and differential time is 5 s. If the temperature of a certain area > 300°C for 10 seconds, the cylinder 6 raises the upper mold 5 to interrupt casting, and the centrifugal pump 24 runs at full speed of 35 L / min for emergency cooling. Thickness out-of-tolerance alarm: when the thickness deviation > ±0.5 mm, the ultrasonic thickness gauge 21 sends an alarm signal to indicate abnormal mold.

[0095] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept.

Claims

1. A casting device for an automotive transmission housing, characterized in that: include: A gate-shaped bracket, wherein a lower mold is fixedly mounted on the inner wall of the gate-shaped bracket through a plurality of connecting rods, a bottom plate is arranged on the bottom surface of the lower mold, an upper mold is arranged above the lower mold, and a cylinder is fixedly mounted on the top surface of the gate-shaped bracket, and an output end of the cylinder is connected to the top surface of the upper mold; A cooling adjustment component is arranged inside the lower mold, and the cooling adjustment component includes: A main cooling pipe, the main cooling pipe is fixedly installed on the inner wall of the lower mold, the main cooling pipe is U-shaped, and rectangular blocks are fixedly installed on both side walls of the main cooling pipe, and rectangular grooves are opened on the side walls of the two rectangular blocks. The cooling adjustment assembly also includes an adjustment member, and the adjustment member is provided in multiple groups, which are respectively arranged in the two rectangular grooves; A detection component is disposed in the lower mold and is used to measure the temperature and thickness of the lower mold; A circulation component is arranged on a gate-shaped bracket.

2. The casting device for an automotive transmission housing according to claim 1, wherein: Adjustment parts include: A limit rod, two of which are provided, and the limit rods are fixedly installed inside the rectangular groove, a sliding block is slidably installed on the outer surface of the limit rod, a second cooling pipe is provided on the side wall of the sliding block, a hose is provided between the second cooling pipe and the main cooling pipe, and an annular electromagnet is fixedly installed on the top surface of the limit rod, and the annular electromagnet cooperates with the sliding block.

3. The casting device for an automotive transmission housing according to claim 1, wherein: The detection components include: Two connecting blocks are respectively fixedly mounted on the inner wall of the lower mold, adjacent surfaces of the two connecting blocks are provided with movable grooves, multiple circular electromagnets are fixedly mounted on the inner walls of the two movable grooves, and movable blocks are slidably mounted in the two movable grooves.

4. The casting device for an automotive transmission housing according to claim 3, characterized in that: The detection components also include: A fixed plate is fixedly mounted on adjacent surfaces of the two moving blocks, temperature sensors are fixedly mounted on both sides of the top surface of the fixed plate, and an ultrasonic thickness gauge is fixedly mounted on one side of the two temperature sensors.

5. A casting device for an automotive transmission housing according to claim 1, characterized in that: The loop components include: A liquid storage tank is fixedly mounted on the front side wall of the gate-shaped bracket, a partition is fixedly mounted on the left side wall of the liquid storage tank, a centrifugal pump is fixedly mounted on the top surface of the partition, and a coolant cooler is fixedly mounted on the front side wall of the gate-shaped bracket and on one side of the liquid storage tank.

6. The casting device for an automotive transmission housing according to claim 5, characterized in that: The loop component also includes: A connecting pipe 1 is provided between the liquid storage tank and the connecting pipe 1, and is used to transport the coolant in the liquid storage tank to the centrifugal pump. A connecting pipe 2 is provided between the centrifugal pump and one side of the main cooling pipe, and is used to transport the coolant in the centrifugal pump to the main cooling pipe. A connecting pipe 3 is provided between the coolant cooler and the other side of the main cooling pipe, and is used to transport the coolant in the main cooling pipe to the coolant cooler. A connecting pipe 4 is provided between the coolant cooler and the liquid storage tank, and is used to transport the coolant in the coolant cooler to the liquid storage tank.

7. A casting device for an automotive transmission housing according to claim 1, characterized in that: A distribution box is fixedly mounted on the left side wall of the door-shaped bracket, and the distribution box is used to supply power to the equipment.

8. The casting device for an automotive transmission housing according to claim 1, characterized in that: A controller is fixedly mounted on the right side wall of the door-shaped bracket, and a processor is fixedly mounted on one side of the controller.

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