Machining device and technology for rear wheel damping support

By installing a temperature adjustment mechanism on the bottom of the rear wheel shock absorber machining mold, the problems of insufficient strength and poor cooling effect of traditional processing devices are solved, and faster production speed and higher product quality are achieved.

CN119566227APending Publication Date: 2025-03-07NINGBO BOHUA MASCH PARTS CO LTD
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Patent Information

Application Number
CN202411965124.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-07

AI Technical Summary

Technical Problem

The processing devices of traditional rear wheel shock absorbing brackets lack high strength and rigidity, and the processing mold cooling effect is poor, resulting in extended production cycles and product surface defects.

Method used

Installing a temperature adjustment mechanism at the bottom of the processing mold body can generate heat or refrigeration, and preheating and cooling of the mold, thereby shortening the molding cycle and reducing surface defects.

Benefits of technology

Through the use of the temperature adjustment mechanism, the molding cycle is significantly shortened, the product appearance quality is improved, defects such as shrinkage and air pores are reduced, and production efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a machining device and technology for a rear wheel damping support. The machining device comprises a machining mold body and a temperature adjusting mechanism. And the temperature adjusting mechanism is used for cooling and preheating the machining mold body, a supporting bottom plate is arranged at the bottom of the machining mold body, and the temperature adjusting mechanism is installed at the top of the supporting bottom plate. The temperature adjusting mechanism is installed at the bottom of the machining die body, the temperature adjusting mechanism can generate heat or refrigerate and has the heating and cooling effects on the machining die body, cooling is beneficial for reducing the defects such as shrinkage cavities and air holes in the surface of a product, the appearance quality of the product is improved, the machining die body has the preheating function, and the machining die body can be cooled conveniently. And the molding period can be remarkably shortened by preheating the mold. The temperature of the preheated mold is close to that of the material, so that the time for the material to reach the lowest viscosity in the mold cavity and the curing time are greatly shortened, and the production speed is increased.
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Description

Technical Field

[0001] The invention relates to the technical field of rear wheel shock absorbing bracket processing equipment, in particular to a rear wheel shock absorbing bracket processing device and process. Background Art

[0002] The rear wheel shock absorber bracket, also known as the shock absorber bracket or shock absorber seat, is an important part of the automobile suspension system, especially the suspension system for the rear wheels. The rear wheel shock absorber bracket connects the body and the rear wheel shock absorber. Its main function is to fix and support the shock absorber so that it can work normally, thereby alleviating the bumps and vibrations of the car during driving. At the same time, it also plays a role in dispersing impact force and protecting tires, suspension and body parts from damage.

[0003] However, the processing device of the traditional rear wheel shock absorber bracket does not have high strength and rigidity, and the processing mold of the rear wheel shock absorber bracket lacks a good cooling effect. The lack of cooling function means that the mold needs a longer time to cool naturally after injection molding, which will lead to an extension of the production cycle. At the same time, the mold temperature is too high, which may cause the molecular structure of the injection molding material inside the mold to change, thereby affecting the surface quality of the bracket, such as shrinkage marks, deformation and other defects. Therefore, we need to provide a processing device and process for the rear wheel shock absorber bracket. Summary of the invention

[0004] The purpose of the present invention is to provide a processing device and process for a rear wheel shock absorber bracket, wherein a temperature regulating mechanism is installed at the bottom of the processing mold body, wherein the temperature regulating mechanism can generate heat or refrigeration, and has the effect of heating and cooling the processing mold body. Cooling helps to reduce defects such as shrinkage holes and pores on the surface of the product, and improve the appearance quality of the product, and has a preheating function for the processing mold body. Preheating the mold can significantly shorten the molding cycle. Since the temperature of the preheated mold and the material is close, the time for the material to reach the minimum viscosity and the curing time in the mold cavity will be greatly shortened, thereby speeding up the production speed and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a processing device for a rear wheel shock absorbing bracket is used to process the rear wheel shock absorbing bracket, the rear wheel shock absorbing bracket includes a mounting shaft portion and a double rocker arm bracket; A circular groove is formed at one end of the surface of the mounting shaft portion, and an end of the surface of the mounting shaft portion away from the circular groove is fixedly mounted on the surface of the double rocker frame, hollow grooves are formed at the bottom of both end surfaces of the double rocker frame, an annular groove is formed on the inner wall of the double rocker frame, and arc-shaped convex strips are integrally processed on both sides of the surface of the mounting shaft portion; The processing device of the rear wheel shock-absorbing bracket includes a processing mold body and a temperature regulating mechanism; The temperature regulating mechanism is used for cooling and preheating the processing mold body. A supporting bottom plate is provided at the bottom of the processing mold body, and the temperature regulating mechanism is installed on the top of the supporting bottom plate. The temperature regulating mechanism at least partially fits the bottom of the processing mold body. The processing mold body includes a lower mold and an upper mold located on the top of the supporting base plate. The lower mold is provided with three groups of slider assemblies. The top of the upper mold is provided with a top guard plate. The upper mold, the lower mold and the three groups of slider assemblies form a molding cavity space corresponding to the molding of the rear wheel shock absorber bracket. A funnel frame is installed on the front of the lower mold, and the funnel frame is connected to the space on one side of the installation shaft.

[0006] Optionally, a support frame is fixedly installed on the top of the support base plate, the top of the support frame is fixedly installed on the bottom of the processing mold body, and a plurality of air holes are opened on both sides of the support frame, and the temperature adjustment mechanism is located in the support frame.

[0007] Optionally, the temperature regulating mechanism includes a frame embedded in the supporting base plate, a curved tube body is fixedly installed inside the frame, the water inlet end of the curved tube body is connected to a water tank, a semiconductor refrigeration plate is embedded in the top of the water tank, the surface of the curved tube body is connected to a driving pump, the driving pump is fixedly installed on the top of the water tank, the drainage end of the curved tube body is connected to the water tank, a partition is provided inside the water tank, a preheating mechanism is installed inside the frame, and one side of the water tank is connected to a water inlet valve and a drainage valve.

[0008] Optionally, the partition member includes a first plate body and a second plate body fixedly installed in the water tank, and the bottom of the first plate body and the second plate body are both provided with flow grooves, the two flow grooves are arranged far away from each other, and the drainage end of the curved tube body is far away from the water inlet end of the curved tube body.

[0009] Optionally, the preheating mechanism includes a mounting accessory fixedly mounted in the frame, a heating pipe is mounted on one side of the mounting accessory, the heating pipe is located inside the frame and is used for heating treatment inside the bent pipe.

[0010] A rear wheel shock absorbing bracket processing technology comprises the following steps: Prepare high-quality steel molds for casting rear wheel shock absorber brackets, and select aluminum alloy as the raw material for casting rear wheel shock absorber brackets; The aluminum alloy material is placed in a furnace for smelting, and industrial pure aluminum is placed in a cleaned crucible, heated with the furnace until it is melted, and the temperature is raised to 730°C for smelting; Slowly introduce the smelted metal material liquid into the gate of the steel mold and completely fill the mold cavity; The molten metal gradually solidifies in the mold, and a cooling system is set at the bottom of the mold to cool the mold; Waiting for the casting to completely solidify and cool, wherein before casting, a layer of mold release agent is applied on the surface of the mold for subsequent removal of the casting, and the demolded casting is treated to obtain a treated casting; The processed castings are subjected to quality inspection and unqualified castings are processed.

[0011] Optionally, prepare a high-quality steel mold for casting the rear wheel shock absorber bracket, and use aluminum alloy as the raw material for casting the rear wheel shock absorber bracket; including: The raw material is aluminum alloy raw material. The preheated master alloy is added into the aluminum melt, and the master alloy is pressed to the bottom of the crucible with a bell jar until all the master alloy is completely melted.

[0012] Optionally, the molten metal material liquid is slowly introduced into the gate of the steel mold and completely fills the mold cavity, including: The melted molten metal is scooped out of the furnace and slowly poured into the gate of the steel mold, and the casting speed is controlled within the range of 0.1~1.1m / s. At this time, the flow parameters of the molten metal are collected, and the resistance coefficient of the molten metal is determined according to the flow parameters of the molten metal and the diameter of the gate of the steel mold. The gas control mode is determined according to the resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas, and the balanced interaction between the molten metal and the gate is dynamically regulated according to the gas control mode.

[0013] Optionally, the casting is waited to be completely solidified and cooled, wherein before casting, a layer of mold release agent is applied on the surface of the mold for subsequent removal of the casting, and the demolded casting is treated to obtain the treated casting, including: Real-time monitoring of the solidification state of the molten metal in the steel mold; If the smelted metal liquid is in a completely solidified state, it is further cooled to form a corresponding casting; The completely solidified and cooled casting is taken out. At this time, the casting is in the steel mold, and the mold cavity in the steel mold is gradually opened. As the mold cavity is gradually opened, the casting is gradually exposed. The casting is separated from the casting under the action of the ejector to complete the demolding of the casting relative to the steel mold; at this time, the mold cavity in the steel mold is detected, and the area to be cleaned is determined based on the detection of the mold cavity in the steel mold. The corresponding cleaning mode is determined according to the area, location and casting of the area to be cleaned, and the mold cavity in the steel mold is dynamically cleaned along the cleaning mode; The casting surface is ground and polished, the surface image of the casting is collected, the abnormal area is defined based on the recognition of the surface image of the casting, the corresponding abnormal type is defined based on the recognition of the abnormal area, and the quality score of the casting is determined based on the abnormal type, the area and the position of the abnormal area.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention installs a temperature regulating mechanism at the bottom of the processing mold body, wherein the temperature regulating mechanism can generate heat or refrigeration, and has the effect of heating and cooling the processing mold body. Cooling helps to reduce defects such as shrinkage holes and pores on the surface of the product, and improve the appearance quality of the product. The processing mold body has a preheating function, and the preheating mold can significantly shorten the molding cycle. Since the temperature of the preheated mold and the material is close, the time for the material to reach the minimum viscosity in the mold cavity and the curing time will be greatly shortened, thereby accelerating the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a local structural stereogram of the present invention; Figure 3 It is a three-dimensional diagram of the explosion structure of the lower mold of the present invention; Figure 4 A three-dimensional diagram of the shock-absorbing bracket of the present invention; Figure 5 A bottom view of the shock-absorbing bracket of the present invention; Figure 6 It is a three-dimensional diagram of the preheating mechanism of the present invention; Figure 7 It is a three-dimensional diagram of the water tank of the present invention; Figure 8 A three-dimensional diagram of the air extraction member of the present invention; Fig. 9 It is a three-dimensional diagram of a partition member of the present invention.

[0016] In the figure: 1, installation shaft; 2, double rocker frame; 3, circular groove; 4, hollow groove; 5, annular groove; 6, arc convex strip; 7, processing mold body; 71, lower mold; 711, dovetail slide; 72, slider assembly; 721, left slide mechanism; 7211, left slider; 722, right slide mechanism; 7221, right slider; 723, tail fork slide mechanism; 7231, tail fork slider; 73, upper mold; 74. Funnel frame; 8. Temperature regulating mechanism; 81. Frame; 82. Bending tube; 83. Water tank; 84. Semiconductor cooling sheet; 85. Driving pump; 86. Partition piece; 861. First plate; 862. Second plate; 863. Flow trough; 87. Preheating mechanism; 871. Mounting accessories; 872. Heating pipe; 9. Support base plate; 10. Support frame; 11. Air vents; 13. Heat dissipation fins. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-9 The present invention provides a technical solution: a rear wheel shock absorber bracket includes a mounting shaft 1 and a double rocker arm bracket 2.

[0019] A circular groove 3 is provided at one end of the surface of the mounting shaft portion 1, and the end of the surface of the mounting shaft portion 1 away from the circular groove 3 is fixedly mounted to the surface of the double rocker frame 2. Hollow grooves 4 are provided at the bottom of both end surfaces of the double rocker frame 2, and an annular groove 5 is provided on the inner wall of the double rocker frame 2, and arc-shaped convex strips 6 are integrally processed on both sides of the surface of the mounting shaft portion 1.

[0020] The mounting shaft 1 is integrally formed with the double rocker frame 2, a circular groove 3 is provided on one side of the mounting shaft 1 for convenient assembly and connection with external equipment, and hollow grooves 4 are provided at the bottom of both end surfaces of the double rocker frame 2, thereby saving resources and achieving lightweight processing, an annular clamping groove 5 is provided for convenient assembly and connection with external equipment, and two arc-shaped convex strips 6 are convenient for clamping and use with other accessories. Optionally, the mounting shaft 1 is formed on the double rocker frame 2 using an insert or a core.

[0021] The processing device of the rear wheel shock-absorbing bracket includes a processing mold body 7 and a temperature regulating mechanism 8 .

[0022] A temperature regulating mechanism 8 for cooling and preheating the processing mold body 7 is installed at the bottom of the processing mold body 7. A supporting base plate 9 is arranged at the bottom of the processing mold body 7. The temperature regulating mechanism is installed on the top of the supporting base plate 9. The processing mold body 7 includes a lower mold 71 and an upper mold 73 located on the top of the supporting base plate 9. The lower mold 71 is provided with three groups of slider assemblies 72. The top of the upper mold 73 is provided with a top guard plate. The upper mold 73, the lower mold 71 and the three groups of slider assemblies 72 form a molding cavity space corresponding to the molding of the rear wheel shock absorber bracket. A funnel frame 74 is installed on the front of the lower mold 71.

[0023] The three sets of slider assemblies 72 respectively include a tail fork slider mechanism 723, a left slider mechanism 721 and a right slider mechanism 722 that slide relative to each other, and the sliding direction of the tail fork slider mechanism 723 intersects with the sliding direction of the left slider mechanism 721. The left slider 7211 of the left slider mechanism 721 and the right slider 7221 of the right slider mechanism 722 are at least partially engaged to form a complementary plug-in locking structure.

[0024] The tail fork slider 7231 of the tail fork slide bar mechanism 723 slides toward the left slider 7211 and the right slider 7221 and is separated by a preset distance, wherein the lower mold 71 is provided with a dovetail slide 711, and the tail fork slider 7231 slides along the dovetail slide 711 to a stop position. The tail fork slider 7231 and the dovetail slide 711 complement each other, which can avoid overturning and achieve sliding. Based on the same principle, the left slider 7211 and the right slider 7221 slide with the lower mold through their corresponding dovetails.

[0025] Specifically, a temperature regulating mechanism 8 is installed at the bottom of the processing mold body 7, wherein the temperature regulating mechanism 8 can generate heat or refrigeration, and has the effect of heating and cooling the processing mold body 7. Cooling helps to reduce defects such as shrinkage holes and pores on the surface of the product and improve the appearance quality of the product. A good cooling system can make the mold temperature uniform, thereby reducing mold deformation and warping caused by temperature differences, and thus improving the surface finish of the product. High temperature will cause the performance of the mold material to decline, thereby affecting the service life. Appropriate cooling can reduce the mold temperature and delay material aging, thereby extending the service life of the mold and reducing the number of mold replacements and maintenance costs.

[0026] At the same time, the processing mold body 7 has a preheating function, and the preheating mold can significantly shorten the molding cycle. Since the temperature of the preheated mold and the material is close, the time for the material to reach the minimum viscosity and the curing time in the mold cavity will be greatly shortened, thereby speeding up the production speed and improving the overall production efficiency. The temperature difference between the preheated material and the mold is greatly reduced, and each part of the material can be heated and cured more evenly, thereby reducing the internal stress of the product and improving the physical and mechanical properties; the preheating mold can maintain the temperature balance between the mold and the product, reduce the imbalance caused by the temperature difference, and ensure the accuracy and quality of the processed product.

[0027] A support frame 10 is fixedly installed on the top of the support base plate 9 , and the top of the support frame 10 is fixedly installed on the bottom of the processing mold body 7 . A plurality of air holes 11 are opened on both sides of the support frame 10 , and the temperature adjustment mechanism 8 is located in the support frame 10 .

[0028] Furthermore, a support frame 10 is provided at the bottom of the processing mold, and the cold air and the hot air are transferred to the processing mold body 7 in the support frame 10 , and air holes 11 are provided to facilitate the discharge of the gas in the support frame 10 .

[0029] The temperature regulating mechanism 8 includes a frame 81 embedded in the supporting base plate 9, a curved tube body 82 is fixedly installed inside the frame 81, the water inlet end of the curved tube body 82 is connected to a water tank 83, a semiconductor refrigeration plate 84 is embedded in the top of the water tank 83, the surface of the curved tube body 82 is connected to a driving pump 85, the driving pump 85 is fixedly installed on the top of the water tank 83, the drainage end of the curved tube body 82 is connected to the water tank 83, a partition 86 is provided inside the water tank 83, a preheating mechanism 87 is installed inside the frame 81, and one side of the water tank 83 is connected to a water inlet valve and a drainage valve.

[0030] It should be noted that a temperature regulating mechanism 8 is installed at the bottom of the processing mold body 7, wherein the temperature regulating mechanism 8 can generate heat or refrigeration. Cooling helps to reduce defects such as shrinkage holes and air holes on the surface of the product, improve the appearance quality of the product, and has a preheating function for the processing mold body 7. Preheating the mold can significantly shorten the molding cycle.

[0031] Specifically, the semiconductor refrigeration sheet 84 is started to cool the coolant in the water tank 83, and the water pump is started to suck the cooled coolant into the curved tube body 82. Since the curved tube body 82 is bent in the frame 81, the cooled coolant has a longer travel through the curved tube body 82, so that the curved tube body 82 cools the frame 81, and the drainage end of the curved tube body 82 is connected to the water tank 83 to form a cycle.

[0032] The partition member 86 includes a first plate body 861 and a second plate body 862 fixedly installed in the water tank 83. The bottom of the first plate body 861 and the second plate body 862 are both provided with a flow groove 863. The two flow grooves 863 are arranged far away from each other, and the drainage end of the curved tube body 82 is far away from the water inlet end of the curved tube body 82.

[0033] Among them, the coolant at the drainage end of the curved tube body 82 flows into the side of the first plate body 861 in the water tank 83. The coolant needs to pass through the flow groove 863 at the bottom of the first plate body 861 and then pass through the flow groove 863 at the bottom of the second plate body 862 to extend the path, thereby improving the cooling effect.

[0034] The preheating mechanism 87 includes a mounting fitting 871 fixedly mounted in the frame 81 , a heating pipe 872 is mounted on one side of the mounting fitting 871 , and the heating pipe 872 is located inside the frame 81 and is used for heating the inside of the bent pipe 82 and maintaining a stable temperature.

[0035] Specifically, when preheating treatment is required, the two heating pipes 872 in the frame 81 are started to generate heat in the frame 81, and the heat is transferred to the mold to provide a preheating effect. Preheating the mold can significantly shorten the molding cycle.

[0036] A rear wheel shock absorbing bracket processing technology comprises the following steps: A high-quality steel mold for casting the rear wheel shock absorber bracket is prepared, and aluminum alloy material is selected as the raw material for casting the rear wheel shock absorber bracket.

[0037] The aluminum alloy material is placed in a furnace for smelting, and industrial pure aluminum is placed in a cleaned crucible, heated with the furnace until it is melted, and the temperature is raised to 730°C for smelting.

[0038] Slowly introduce the smelted metal material liquid into the gate of the steel mold and completely fill the mold cavity; The molten metal gradually solidifies in the mold, and a cooling system is set at the bottom of the mold to cool the mold.

[0039] Waiting for the casting to completely solidify and cool, wherein before casting, a layer of mold release agent is applied on the surface of the mold for subsequent removal of the casting, and the demolded casting is treated to obtain a treated casting; The processed castings are subjected to quality inspection and unqualified castings are processed.

[0040] Prepare high-quality steel molds for casting rear wheel shock absorber brackets, and select aluminum alloy materials as the raw materials for casting rear wheel shock absorber brackets; including: Select aluminum alloy raw materials with reliable raw material quality and no impurities and pollution, add the preheated master alloy into the aluminum melt, and use a bell jar to press the master alloy to the bottom of the crucible, and keep it warm for a period of time until all the master alloy is completely melted.

[0041] Specifically, the mold is cleaned, polished and coated with a release agent to ensure smooth demolding of the casting and increase the service life of the mold. Cleaning steps: Use a cleaning agent and a cleaning brush or sponge to thoroughly clean the surface and interior of the mold to remove oil, rust, plastic residue, etc. For difficult-to-clean areas, a high-pressure water gun can be used for rinsing. After that, polishing is performed according to the material and surface requirements of the mold. For example, the mold is finely polished using diamond polishing paste. Polishing operation: Apply the polishing agent evenly to the surface of the mold, and use a polishing wheel, polishing cloth or polishing pad to perform uniform and gentle polishing operations on the surface of the mold.

[0042] After polishing is completed, check the mold surface to see if it has achieved the desired polishing effect. During this period, multiple polishing operations can be performed.

[0043] Steps for applying release agent: The coating method of the mold is to use a spray gun to evenly spray the overall cavity space, and use a brush or cloth to apply to small grooves and other details. Apply the release agent evenly on the mold surface to ensure that all parts that need to be demolded are covered. After the release agent is applied, check and ensure that the release agent is evenly distributed and not missed, and wait for the release agent to dry or solidify. If necessary, additional coating or adjustment operations can be performed to achieve the best demolding effect.

[0044] Strictly control the casting speed and casting amount of the molten metal; associate the casting speed and casting amount of the molten metal, build a corresponding balance control system according to the casting speed and casting amount of the molten metal and the overall volume of the casting, define the balance relationship according to the balance control system, the molding position of the casting and the type of molten metal, and associate the balance relationship with the casting speed and casting amount of the molten metal to perform dynamic balance control on the casting speed and casting amount of the molten metal.

[0045] At this time, the casting speed and casting amount of the molten metal are introduced to control the casting speed and casting amount of the molten metal as a whole, so as to facilitate multiple interactions of the casting speed, casting amount of the molten metal and the overall volume of the casting, thereby realizing multiple interactions of the casting speed, casting amount of the molten metal and the overall volume of the casting, and then constructing a corresponding balance control system, which is trained through multiple interactions of the casting speed, casting amount of the molten metal and the overall volume of the casting.

[0046] Further control over the balance control system, the molding position of the casting and the type of molten metal enables overall control of the balance control system, the molding position of the casting and the type of molten metal, ensuring the accuracy of the balance relationship, which can be presented through the balance coefficient, and controls the balance ratio of the casting speed and casting amount of the molten metal, achieving dynamic balance control of the casting speed and casting amount of the molten metal.

[0047] The smelted molten metal is scooped out of the furnace or slowly poured into the gate of the steel mold through a drainage device. The casting speed is usually controlled within the range of 0.1~1.1m / s. At this time, the flow parameters of the molten metal are collected, and the resistance coefficient of the molten metal is determined according to the flow parameters of the molten metal and the diameter of the gate of the steel mold. The gas control mode is determined according to the resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas. The balanced interaction between the molten metal and the gate is dynamically regulated according to the gas control mode.

[0048] At this time, the flow parameters of the molten metal and the diameter of the gate of the steel mold are introduced to control the flow parameters of the molten metal and the diameter of the gate of the steel mold as a whole to ensure the resistance coefficient of the molten metal. The resistance coefficient of the molten metal serves as an external auxiliary force coefficient of the molten metal to facilitate the presentation of the resistance degree of the molten metal.

[0049] The resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas are controlled as a whole, realizing multiple interactions of the resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas, ensuring the gas control mode, which can be a gas speed increase flow mode, a gas uniform flow mode and other modes, and dynamically adjusting the balanced interaction between the molten metal and the gate according to the gas control mode, ensuring the reasonable relationship between the molten metal and the gate.

[0050] Specifically, the metal raw materials are placed in a furnace for smelting. The temperature and smelting time are controlled to make the metal reach a state of complete melting and uniform composition. The smelted molten metal is transported from the furnace to the funnel frame 74. The casting process should maintain a smooth flow of the molten metal to avoid splashing, turbulence and gas entrapment. At the same time, the gas control mode is determined according to the resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas, and the balanced interaction between the molten metal and the gate is dynamically regulated according to the gas control mode.

[0051] Control the casting speed and casting amount of the molten metal to ensure that the mold cavity is completely filled, while avoiding under-casting or over-casting. Too fast a casting speed may cause defects such as pores and slag inclusions inside the casting. The casting speed of the double rocker frame part in the processing device is greater than the casting speed of the surrounding part of the mounting shaft to improve the casting efficiency. Specifically, after the processing device is slightly tilted on the equipment, the molten metal is injected, and the injection speed of the molten metal in the early stage is greater than the injection speed of the molten metal in the later stage.

[0052] Wait for the casting to completely solidify and cool down. Before casting, apply a layer of mold release agent on the surface of the mold for subsequent casting removal, and treat the casting after demolding to obtain the treated casting, including: Real-time monitoring of the solidification state of the molten metal in the steel mold; If the smelted metal liquid is in a completely solidified state, it is further cooled to form a corresponding casting; The completely solidified and cooled casting is taken out. At this time, the casting is in the steel mold, and the mold cavity in the steel mold is gradually opened. As the mold cavity is gradually opened, the casting is gradually exposed. The casting is separated from the casting under the action of the ejector to complete the demolding of the casting relative to the steel mold. At this time, the mold cavity in the steel mold is detected, and the area to be cleaned is determined based on the detection of the mold cavity in the steel mold. The corresponding cleaning mode is determined according to the area, location and casting of the area to be cleaned, and the mold cavity in the steel mold is dynamically cleaned along the cleaning mode.

[0053] After the casting is taken out of the mold, the surface of the casting is ground and polished, and the detection equipment collects the surface image of the casting, defines the abnormal area based on the recognition of the surface image of the casting, defines the corresponding abnormal type based on the recognition of the abnormal area, and determines the quality score of the casting based on the abnormal type, the area and the position of the abnormal area.

[0054] At this time, the surface image of the casting is identified so that an abnormal area can be defined based on the identification of the surface image of the casting. The abnormal area is an abnormal surface area in the casting. The type of abnormality may be surface depression, surface burr, etc., and then the quality score of the casting is determined according to the type of abnormality, the area and position of the abnormal area, thereby ensuring the accuracy of the quality score of the casting and presenting the quality grade of the casting through the quality score of the casting.

[0055] Specifically, after the casting is cooled to an appropriate temperature, the mold is opened, the casting is taken out, the demoulding casting is cleaned, the gate, flash, burrs and other unnecessary parts are removed, and the surface is treated by sandblasting, shot blasting and other methods to improve the appearance quality of the casting. The testing equipment performs quality inspection: including dimensional accuracy, surface quality, internal defects (such as through X-ray flaw detection, ultrasonic testing, etc.) and other aspects.

[0056] The device installs a temperature regulating mechanism 8 at the bottom of the processing mold body 7, wherein the temperature regulating mechanism 8 can generate heat or cool. Cooling helps to reduce defects such as shrinkage holes and air holes on the surface of the product, improve the appearance quality of the product, and has a preheating function for the processing mold body 7. Preheating the mold can significantly shorten the molding cycle, start the semiconductor refrigeration plate 84 to cool the coolant in the water tank 83, start the water pump to suck the cooled coolant into the curved tube body 82, and since the curved tube body 82 is bent and arranged in the frame 81, the cooled coolant has a longer travel through the curved tube body 82, thereby realizing the cooling treatment of the frame 81 by the curved tube body 82, and the drainage end of the curved tube body 82 is connected to the water tank 83 to form a cycle.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for a rear wheel shock absorber bracket, characterized in that: The processing device of the rear wheel shock absorbing bracket is used for processing the rear wheel shock absorbing bracket, and the rear wheel shock absorbing bracket comprises a mounting shaft portion (1) and a double rocker arm bracket (2); A circular groove (3) is formed at one end of the surface of the mounting shaft portion (1); an end of the surface of the mounting shaft portion (1) away from the circular groove (3) is fixedly mounted on the surface of the double rocker frame (2); hollow grooves (4) are formed at the bottom of both end surfaces of the double rocker frame (2); an annular groove (5) is formed on the inner wall of the double rocker frame (2); and arc-shaped convex strips (6) are integrally machined on both sides of the surface of the mounting shaft portion (1); The processing device of the rear wheel shock-absorbing bracket comprises a processing mold body (7) and a temperature regulating mechanism (8); The temperature regulating mechanism (8) is used for cooling and preheating the processing mold body (7); a supporting bottom plate (9) is provided at the bottom of the processing mold body (7); the temperature regulating mechanism (8) is installed on the top of the supporting bottom plate (9); the temperature regulating mechanism (8) at least partially fits the bottom of the processing mold body (7); The processing mold body (7) comprises a lower mold and an upper mold located on the top of the supporting bottom plate, the lower mold is provided with three sets of slider assemblies, the top of the upper mold is provided with a top guard plate, the upper mold, the lower mold and the three sets of slider assemblies form a molding cavity space corresponding to the molding of the rear wheel shock absorber bracket, and a funnel frame portion is installed on the front of the lower mold, and the funnel frame portion is connected to the space on one side of the mounting shaft portion (1).

2. The processing device for a rear wheel shock absorber bracket according to claim 1, characterized in that: A support frame (10) is fixedly mounted on the top of the support base plate (9), the top of the support frame (10) is fixedly mounted on the bottom of the processing mold body (7), a plurality of air holes (11) are provided on both sides of the support frame (10), and the temperature adjustment mechanism (8) is located inside the support frame (10).

3. The processing device for a rear wheel shock absorber bracket according to claim 2, characterized in that: The temperature regulating mechanism (8) comprises a frame (81) embedded in the supporting base plate (9); a curved tube (82) is fixedly installed inside the frame (81); a water inlet end of the curved tube (82) is connected to a water tank (83); a semiconductor cooling plate (84) is embedded in the top of the water tank (83); a surface of the curved tube (82) is connected to a driving pump (85); the driving pump (85) is fixedly installed on the top of the water tank (83); a drainage end of the curved tube (82) is connected to the water tank (3); a partition (86) is provided inside the water tank (83); a preheating mechanism (87) is installed inside the frame (81); and a water inlet valve and a drainage valve are connected to one side of the water tank (83).

4. The processing device for a rear wheel shock absorber bracket according to claim 3, characterized in that: The partition member (86) comprises a first plate body (861) and a second plate body (862) fixedly mounted in the water tank (83); the bottoms of the first plate body (861) and the second plate body (862) are both provided with a flow groove (863); the two flow grooves (863) are arranged away from each other, and the drainage end of the curved tube body (82) is away from the water inlet end of the curved tube body (82).

5. The processing device for a rear wheel shock absorber bracket according to claim 3, characterized in that: The preheating mechanism (87) comprises a mounting accessory (871) fixedly mounted in the frame (81); a heating pipe (872) is mounted on one side of the mounting accessory (871); the heating pipe (872) is located inside the frame (81) and is used for heating treatment inside the bent pipe (82).

6. A rear wheel shock absorber bracket processing technology, characterized in that: The following steps are involved: Prepare high-quality steel molds for casting rear wheel shock absorber brackets, and select aluminum alloy as the raw material for casting rear wheel shock absorber brackets; The aluminum alloy material is placed in a furnace for smelting, and industrial pure aluminum is placed in a cleaned crucible, heated with the furnace until it is melted, and the temperature is raised to 730°C for smelting; Slowly introduce the smelted metal material liquid into the gate of the steel mold and completely fill the mold cavity; The molten metal gradually solidifies in the mold, and a cooling system is set at the bottom of the mold to cool the mold; Waiting for the casting to completely solidify and cool, wherein before casting, a layer of mold release agent is applied on the surface of the mold for subsequent removal of the casting, and the demolded casting is treated to obtain a treated casting; The processed castings are subjected to quality inspection and unqualified castings are processed.

7. The rear wheel shock absorber bracket processing technology according to claim 6 is characterized by: The high-quality steel mold for casting the rear wheel shock absorber bracket uses aluminum alloy as the raw material for casting the rear wheel shock absorber bracket; including: The raw material is aluminum alloy raw material. The preheated master alloy is added into the aluminum melt, and the master alloy is pressed to the bottom of the crucible with a bell jar until all the master alloy is completely melted.

8. The rear wheel shock absorber bracket processing technology according to claim 6 is characterized by: The method of slowly introducing the smelted metal material liquid into the gate of the steel mold and completely filling the mold cavity comprises: The melted molten metal is scooped out of the furnace and slowly poured into the gate of the steel mold, and the casting speed is controlled within the range of 0.1~1.1m / s. At this time, the flow parameters of the molten metal are collected, and the resistance coefficient of the molten metal is determined according to the flow parameters of the molten metal and the diameter of the gate of the steel mold. The gas control mode is determined according to the resistance coefficient of the molten metal, the casting formed by the steel mold and the flow path of the gas, and the balanced interaction between the molten metal and the gate is dynamically regulated according to the gas control mode.

9. The rear wheel shock absorber bracket processing technology according to claim 6, characterized in that: The step of waiting for the casting to completely solidify and cool, wherein before casting, a layer of mold release agent is applied on the surface of the mold for subsequent removal of the casting, and the demolded casting is treated to obtain the treated casting, comprising: Real-time monitoring of the solidification state of the molten metal in the steel mold; If the smelted metal liquid is in a completely solidified state, it is further cooled to form a corresponding casting; The completely solidified and cooled casting is taken out. At this time, the casting is in the steel mold, and the mold cavity in the steel mold is gradually opened. As the mold cavity is gradually opened, the casting is gradually exposed. The casting is separated from the casting under the action of the ejector to complete the demolding of the casting relative to the steel mold; at this time, the mold cavity in the steel mold is detected, and the area to be cleaned is determined based on the detection of the mold cavity in the steel mold. The corresponding cleaning mode is determined according to the area, location and casting of the area to be cleaned, and the mold cavity in the steel mold is dynamically cleaned along the cleaning mode; The casting surface is ground and polished, the surface image of the casting is collected, the abnormal area is defined based on the recognition of the surface image of the casting, the corresponding abnormal type is defined based on the recognition of the abnormal area, and the quality score of the casting is determined based on the abnormal type, the area and the position of the abnormal area.

Citation Information

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