Casting forming method for alloy automobile hub

Abstract

The invention relates to the technical field of hub machining, in particular to an alloy automobile hub casting forming method which comprises the following steps that firstly, a mold cavity is subjected to mold design, and the mold cavity in the needed shape is machined; 2, the raw materials are converted into a liquid state at the furnace temperature according to the proportion and flow into a mold cavity to be subjected to solidification forming machining; thirdly, the liquid metal is injected into a casting mold to be solidified, and the solidified liquid metal is subjected to shelling treatment; step 4, carrying out heat treatment on the unshelled raw materials, and spraying a to-be-dyed coating onto the material subjected to heat treatment; fifthly, the materials are assembled, and a drilling device is used for machining a plurality of mounting holes in the assembled materials; and sixthly, the drilled material continues to be screwed and polished, casting of the alloy automobile hub can be completed, and the multiple installation round holes can be rapidly machined in the hub through the method.

Description

Technical Field

[0001] This invention relates to the field of wheel hub processing technology, and more specifically to a method for casting and forming alloy automobile wheel hubs. Background Technology

[0002] A wheel hub is a cylindrical metal component that supports the tire and is centrally mounted on an axle. In the past, passenger car wheel hub bearings were mostly paired single-row tapered roller or ball bearings. With technological advancements, passenger cars now widely use wheel hub units, and the application and usage of wheel hub bearing units have increased significantly, evolving to the third generation: The first generation consisted of double-row angular contact bearings; the second generation had a flange on the outer raceway for securing the bearing, allowing for simple mounting of the bearing onto the axle and securing it with a nut, simplifying vehicle maintenance; the third generation wheel hub bearing units integrate the bearing unit with an anti-lock braking system. The hub unit is designed with an inner and outer flange. The inner flange is bolted to the drive shaft, and the outer flange mounts the entire bearing together, completing the wheel hub assembly. However, current technology cannot quickly machine multiple mounting holes onto the wheel hub. Summary of the Invention

[0003] The purpose of this invention is to provide a method for casting alloy automotive wheel hubs, which can quickly machine multiple mounting holes onto the wheel hub.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A method for casting alloy automotive wheel hubs, the method comprising the following steps:

[0006] Step 1: Design the mold cavity and machine the mold cavity of the required shape;

[0007] Step 2: The raw materials are melted into liquid at the furnace temperature according to the proportion and flowed into the mold cavity for solidification and molding.

[0008] Step 3: The liquid metal is poured into the mold to solidify, and the solidified liquid metal is then descrambled.

[0009] Step 4: Heat-treat the dehulled raw material and spray the desired dyeing coating onto the heat-treated material.

[0010] Step 5: Assemble the materials and use a drilling device to machine multiple mounting holes in the assembled materials;

[0011] Step 6: Polish the material after drilling to complete the casting of the alloy car wheel hub.

[0012] The drilling method of the aforementioned alloy automotive wheel hub casting and forming method includes the following steps:

[0013] S1. Place the assembled wheel hub directly under the cross brace;

[0014] S2. Start the reduction motor to drive the linkage gear to rotate;

[0015] S3. Multiple perforated gears can be driven to rotate via the linkage gear.

[0016] S4. Multiple perforated gears will drive multiple rotating drill bits to rotate.

[0017] S5. Move the multiple rotating drill bits toward the hub to machine multiple mounting holes onto the hub.

[0018] The purpose of the heat treatment is to give the alloy better properties.

[0019] Multiple rotary drill bits are rotatably connected to the cross support plate, and each rotary drill bit is fixedly connected to a perforated gear. A geared motor is fixedly connected to the cross support plate, and the output shaft of the geared motor is rotatably connected to the cross support plate. A linkage gear is fixedly connected to the output shaft of the geared motor, and the linkage gear meshes with multiple perforated gears for transmission.

[0020] Preferably, a horizontal support ring is fixedly connected to the horizontal support plate, a liquid storage cavity is fixedly connected to the horizontal support ring, a plurality of drain vertical pipes are fixedly connected to the liquid storage cavity, the plurality of drain vertical pipes are slidably connected to a plurality of perforated gears, and a sliding cover with a tube is slidably connected to the liquid storage cavity.

[0021] Preferably, two lifting slide plates are slidably connected to the horizontal support plate, and each of the two lifting slide plates is fixedly connected to a support table. Two telescopic rods I are fixedly connected to the support table, and both telescopic rods I are fixedly connected to the horizontal support plate.

[0022] Preferably, each of the two lifting slide plates is fixedly connected to a telescopic rod II, and the inner end of each of the two telescopic rod II is fixedly connected to a centering curved plate. Each of the two centering curved plates is fixedly connected to two transverse limiting sliding posts, and the two sets of two transverse limiting sliding posts are slidably connected to the two lifting slide plates respectively.

[0023] Preferably, a horizontal support slide plate is slidably connected to the support table, and two material leakage holes are evenly arranged on the horizontal support slide plate.

[0024] Preferably, a recycling bin is fixedly connected to the support table, a horizontal drain pipe is fixedly connected to the recycling bin, and a filter plate is slidably connected inside the recycling bin.

[0025] Preferably, a bearing seat is fixedly connected to the empty recycling bin, and a transverse lead screw is rotatably connected to the bearing seat. The transverse lead screw is connected to the transverse support slide plate by a thread. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0027] Figure 1 This is a schematic diagram of a process for casting alloy automotive wheel hubs.

[0028] Figure 2 This is a flowchart illustrating the drilling method using a drilling device;

[0029] Figure 3 This is a schematic diagram of the overall structure of the drilling device of the present invention;

[0030] Figure 4 This is a partial structural schematic diagram of the drilling device of the present invention;

[0031] Figure 5 This is a schematic diagram of an embodiment in which multiple mounting holes are machined onto the wheel hub;

[0032] Figure 6 This is a schematic diagram of a specific structure of an embodiment in which multiple mounting holes are machined onto the wheel hub;

[0033] Figure 7 This is a schematic diagram of an embodiment for storing and discharging coolant;

[0034] Figure 8 This is a structural schematic diagram of an embodiment for fixing the wheel hub;

[0035] Figure 9 This is a schematic diagram of an embodiment that moves the wheel hub and collects waste;

[0036] Figure 10 This is a schematic diagram of an embodiment for separating waste and coolant. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1 The present invention will be described in further detail below.

[0038] The following is in conjunction with the appendix Figure 1 Detailed description: A method for casting alloy automotive wheel hubs, the method comprising the following steps:

[0039] Step 1: Design the mold cavity and machine the mold cavity of the required shape;

[0040] Step 2: The raw materials are melted into liquid at the furnace temperature according to the proportion and flowed into the mold cavity for solidification and molding.

[0041] Step 3: The liquid metal is poured into the mold to solidify, and the solidified liquid metal is then descrambled.

[0042] Step 4: Heat-treat the dehulled raw material and spray the desired dyeing coating onto the heat-treated material.

[0043] Step 5: Assemble the materials and use a drilling device to machine multiple mounting holes in the assembled materials;

[0044] Step 6: Polish the material after drilling to complete the casting of the alloy car wheel hub.

[0045] The following is in conjunction with the appendix Figure 2 Detailed description: The drilling method of the alloy automobile wheel hub casting process includes the following steps:

[0046] S1. Place the assembled wheel hub directly under the cross support plate 101;

[0047] S2. Start the reduction motor 104 to drive the linkage gear 105 to rotate;

[0048] S3, The linkage gear 105 can drive multiple perforated gears 103 to rotate.

[0049] S4. Multiple perforated gears 103 will drive multiple rotating drill bits 102 to rotate.

[0050] S5. Move the multiple rotating drill bits 102 toward the hub to machine multiple mounting holes onto the hub.

[0051] According to the instruction manual Figure 1 In detail, the purpose of the heat treatment is to give the alloy stronger properties.

[0052] According to the instruction manual Figure 3-6 In detail, multiple rotary drill bits 102 are rotatably connected to the cross support plate 101 through multiple bearing holes. Each rotary drill bit 102 is fixedly connected to a perforated gear 103 by welding. A reduction motor 104 is fixedly connected to the cross support plate 101 through a flange plate. The output shaft of the reduction motor 104 is rotatably connected to the cross support plate 101 through a round hole. A linkage gear 105 is fixedly connected to the output shaft of the reduction motor 104 through a keyway and a snap ring. The linkage gear 105 meshes with the multiple perforated gears 103 for transmission.

[0053] Furthermore, the cross support plate 101 serves as a load-bearing connection, providing space for the rotation of multiple rotary drill bits 102. The rotation of these drill bits 102 allows multiple mounting holes to be machined onto the hub. Each rotary drill bit 102 has a vertical hole and multiple horizontal holes that are interconnected. Coolant can be added to the vertical hole on the rotary drill bit 102, and then discharged through the multiple horizontal holes, achieving a cooling effect without the need for external cooling components. The center of each of the perforated gears 103 is also provided with a circular hole, which is connected to the vertical circular hole on the rotary drill bit 102. Coolant is added to the vertical circular hole on the rotary drill bit 102 through the circular hole on the perforated gear 103. The multiple perforated gears 103 can drive the multiple rotary drill bits 102 to rotate. After the reduction motor 104 is started, it can drive the linkage gear 105 to rotate. The rotating linkage gear 105 will simultaneously drive the multiple perforated gears 103 to rotate, ultimately driving the multiple rotary drill bits 102 to rotate and complete the machining of multiple mounting circular holes.

[0054] The assembled wheel hub is placed under the cross support plate 101, ensuring that the wheel hub is directly below the multiple rotary drill bits 102. The reduction motor 104 is started, driving the linkage gear 105 to rotate. The rotating linkage gear 105 will simultaneously drive the multiple perforated gears 103 to rotate, ultimately driving the multiple rotary drill bits 102 to rotate. After the multiple rotary drill bits 102 have rotated, the cross support plate 101 is moved downwards, allowing the rotating rotary drill bits 102 to contact the wheel hub and move downwards, completing the machining of the multiple mounting holes. On the hub, when multiple rotary drill bits 102 move downwards, coolant is added to the vertical holes on the multiple rotary drill bits 102 through the round holes on the multiple perforated gears 103. Finally, the coolant will be discharged through the multiple horizontal round holes on the multiple rotary drill bits 102, which can achieve the cooling treatment of the multiple rotary drill bits 102 and ensure that the multiple rotary drill bits 102 are in a low temperature state for drilling. If the multiple rotary drill bits 102 are not cooled, they may become soft, affecting the drilling efficiency.

[0055] According to the instruction manual Figure 3-5 Detailed description of section 7: A horizontal support ring 201 is fixedly connected to the horizontal support connecting plate 101 by welding. A liquid storage cavity 202 is fixedly connected to the horizontal support ring 201 by welding. Multiple drainage vertical pipes 203 are fixedly connected to and communicate with the liquid storage cavity 202 by welding. The multiple drainage vertical pipes 203 are slidably connected to multiple perforated gears 103 respectively. A sliding cover 204 with a tube is slidably connected to the liquid storage cavity 202 through a straight cavity.

[0056] Furthermore, the horizontal support ring 201 provides a fixed space for the liquid storage cavity 202, which can store a large amount of coolant. The coolant in the liquid storage cavity 202 can be discharged through multiple drain risers 203, each equipped with a valve. After opening the valves on the multiple drain risers 203, the coolant in the liquid storage cavity 202 will be discharged through the multiple drain risers 203 and enter the vertical circular holes on the multiple rotary drill bits 102. Finally, it can be discharged through the multiple horizontal circular holes on the multiple rotary drill bits 102, thereby cooling the multiple rotary drill bits 102. The tube-mounted sliding cover 204 can block and seal the opening above the liquid storage cavity 202, preventing debris from entering the liquid storage cavity 202. The tube-mounted sliding cover 204 is equipped with a vertical circular tube, through which coolant is added to the liquid storage cavity 202.

[0057] According to the instruction manual Figure 3 , 4 Detailed descriptions in sections 8 and 9: Two lifting slide plates 301 are slidably connected to the horizontal support plate 101 via a sliding groove. Each of the two lifting slide plates 301 is fixedly connected to a support table 302 by welding. Two telescopic rods I303 are fixedly connected to the support table 302 via flange plates. Both telescopic rods I303 are fixedly connected to the horizontal support plate 101 via flange plates.

[0058] Furthermore, the two lifting slide plates 301 provide sliding space for the horizontal support plate 101, ensuring that the horizontal support plate 101 can only slide up and down. The support table 302 plays a role in bearing and connecting, providing support and fixation for the entire device, ensuring that the device can be placed stably on the ground. The support table 302 also provides fixed space for the two lifting slide plates 301. After activating the two telescopic rods I303, the horizontal support plate 101 can be moved downward, allowing the multiple rotating drill bits 102 to contact the wheel hub for feeding purposes, thus enabling the machining of multiple mounting holes onto the wheel hub.

[0059] According to the instruction manual Figure 3 , 4 In detail in section 8, each of the two lifting slide plates 301 is fixedly connected to a telescopic rod II 401 via a flange plate. The inner ends of each of the two telescopic rod II 401 are fixedly connected to a centering curved plate 402 via a flange plate. Each of the two centering curved plates 402 is fixedly connected to two transverse limiting sliding columns 403 by welding. The two sets of two transverse limiting sliding columns 403 are slidably connected to the two lifting slide plates 301 through through holes.

[0060] Furthermore, after activating the two telescopic rods II401, the two centering plates 402 can be moved inward simultaneously. The two centering plates 402 can be used to fix and center the hub, ensuring that the hub is directly below the multiple rotating drill bits 102. This ensures that the positions of the multiple mounting holes are accurate. The two sets of two transverse limiting pins 403 can be used to limit the movement of the two centering plates 402, ensuring that the two centering plates 402 can only slide laterally.

[0061] According to the instruction manual Figure 3 , 9 In detail with reference to 10, the support table 302 is slidably connected to a horizontal support slide plate 501 via a slide groove, and the horizontal support slide plate 501 is evenly provided with two material leakage holes 502.

[0062] Furthermore, the transverse support slide 501 provides space for the wheel hub, while the two discharge holes 502 provide space for the waste material and coolant from drilling to drain, preventing waste material and coolant from accumulating inside the wheel hub. Two wheel hubs can be placed on the transverse support slide 501. By sliding the transverse support slide 501, the positions of the two wheel hubs can be changed, ensuring that the two wheel hubs can be moved directly under the multiple rotary drill bits 102. When processing one wheel hub, the other wheel hub is placed on the transverse support slide 501. After processing, the transverse support slide 501 is slid to change the position of the processed wheel hub, moving the unprocessed wheel hub directly under the multiple rotary drill bits 102. The processed wheel hub is then removed, and a new wheel hub is placed on the transverse support slide 501. This improves the efficiency of drilling multiple mounting holes for the wheel hub.

[0063] According to the instruction manual Figure 3 , 9 In detail with reference to 10, a recycling bin 601 is fixedly connected to the support table 302 by welding, a horizontal drain pipe 602 is fixedly connected to the recycling bin 601 by welding and connected to it, and a filter plate 603 is slidably connected inside the recycling bin 601 through a straight cavity.

[0064] Furthermore, the empty recycling bin 601 provides a space for storing the drilled waste and coolant. The horizontal drain pipe 602 drains the coolant that enters the empty recycling bin 601. A water pump can transfer the coolant discharged through the horizontal drain pipe 602 to the vertical round pipe on the sliding cover 204, thus achieving the recycling and reuse of the coolant. The filter plate 603 separates the drilled waste and coolant. The drilled waste will remain on the filter plate 603, while the coolant will enter the empty recycling bin 601.

[0065] According to the instruction manual Figure 3 , 9In detail with reference to 10, the empty recycling bin 601 is fixedly connected to a bearing seat 701 by welding, and a transverse lead screw 702 is rotatably connected to the bearing seat 701 through a bearing hole. The transverse lead screw 702 is connected to the transverse support slide plate 501 by a thread.

[0066] Furthermore, a geared motor II is fixedly connected to the bearing housing 701. The output shaft of the geared motor II is fixedly connected to the transverse lead screw 702. After the geared motor II is started, it can drive the transverse lead screw 702 to rotate. The rotating transverse lead screw 702 will drive the transverse support slide plate 501 to slide back and forth, thereby changing the position of the two wheel hubs on the transverse support slide plate 501. In this way, the continuous machining of multiple mounting holes on multiple wheel hubs can be completed.

Claims

1. A method for casting and forming alloy automotive wheel hubs, characterized in that, The method includes the following steps: Step 1: Design the mold cavity and machine the mold cavity of the required shape; Step 2: The raw materials are melted into liquid at the furnace temperature according to the proportion and flowed into the mold cavity for solidification and molding. Step 3: The liquid metal is poured into the mold to solidify, and the solidified liquid metal is then descrambled. Step 4: Heat-treat the dehulled raw material and spray the desired dyeing coating onto the heat-treated material. Step 5: Assemble the materials and use a drilling device to machine multiple mounting holes in the assembled materials; Step 6: Polish the material after drilling to complete the casting of the alloy car wheel hub.

2. The method for casting and forming an alloy automobile wheel hub according to claim 1, characterized in that, The drilling method of the drilling device includes the following steps: S1. Place the assembled wheel hub directly under the cross support plate (101); S2. Start the geared motor (104) to drive the linkage gear (105) to rotate; S3, Multiple perforated gears (103) can be driven to rotate via the linkage gear (105). S4. Multiple perforated gears (103) will drive multiple rotating drill bits (102) to rotate; S5. Move the multiple rotating drill bits (102) toward the hub to machine multiple mounting holes onto the hub.

3. The method for casting and forming an alloy automobile wheel hub according to claim 1, characterized in that: The purpose of the heat treatment is to give the alloy better properties.

4. The method for casting and forming an alloy automobile wheel hub according to claim 1, characterized in that: Multiple rotary drill bits (102) are rotatably connected to the cross support plate (101). Each rotary drill bit (102) is fixedly connected to a perforated gear (103). A reduction motor (104) is fixedly connected to the cross support plate (101). The output shaft of the reduction motor (104) is rotatably connected to the cross support plate (101). A linkage gear (105) is fixedly connected to the output shaft of the reduction motor (104). The linkage gear (105) meshes with the multiple perforated gears (103) for transmission.

5. The method for casting and forming an alloy automobile wheel hub according to claim 4, characterized in that: A horizontal support ring (201) is fixedly connected to the horizontal support connecting plate (101), a liquid storage cavity (202) is fixedly connected to the horizontal support ring (201), a plurality of drain vertical pipes (203) are fixedly connected to the liquid storage cavity (202), the plurality of drain vertical pipes (203) are slidably connected to a plurality of perforated gears (103), and a sliding cover (204) with a tube is slidably connected to the liquid storage cavity (202).

6. The method for casting and forming an alloy automobile wheel hub according to claim 4, characterized in that: Two lifting slide plates (301) are slidably connected to the horizontal support plate (101). Each of the two lifting slide plates (301) is fixedly connected to a support table (302). Two telescopic rods I (303) are fixedly connected to the support table (302). Both telescopic rods I (303) are fixedly connected to the horizontal support plate (101).

7. The method for casting and forming an alloy automobile wheel hub according to claim 6, characterized in that: Each of the two lifting slide plates (301) is fixedly connected to a telescopic rod II (401), and the inner ends of the two telescopic rods II (401) are fixedly connected to a centering curved plate (402). Each of the two centering curved plates (402) is fixedly connected to two horizontal limiting sliding columns (403), and the two sets of two horizontal limiting sliding columns (403) are slidably connected to the two lifting slide plates (301) respectively.

8. The method for casting and forming an alloy automobile wheel hub according to claim 6, characterized in that: The support table (302) is slidably connected to a horizontal support plate (501), and two material leakage holes (502) are evenly arranged on the horizontal support plate (501).

9. The method for casting and forming an alloy automobile wheel hub according to claim 8, characterized in that: A recycling bin (601) is fixedly connected to the support table (302), a horizontal drain pipe (602) is fixedly connected to the recycling bin (601), and a filter plate (603) is slidably connected inside the recycling bin (601).

10. The method for casting and forming an alloy automobile wheel hub according to claim 9, characterized in that: The empty recycling bin (601) is fixedly connected to a bearing seat (701), and a transverse lead screw (702) is rotatably connected to the bearing seat (701). The transverse lead screw (702) is connected to the transverse support slide plate (501) by a thread.

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