A machining method of a middle channel integrated casting for vehicle

Abstract

The application discloses a processing method of a middle passage integrated casting for vehicles, and comprises the following steps: S1, cutting of a carbon fiber composite steel plate; S2, pressure casting forming of a longitudinal passage and a transverse passage; S3, processing of a heat dissipation groove; S4, welding of a reinforcing rib; and S5, processing of a mounting hole. The application can improve the processing and manufacturing precision and quality of the middle passage integrated casting, can meet the integrated processing of different numbers of transverse passages, can meet the requirements of automatic production, can reduce the labor intensity of manual operation, can select the distribution position of the reinforcing rib according to the requirements of different vehicle models, and can improve safety.

Description

Technical Field

[0001] This invention relates to a method for machining an integral casting of a vehicle center channel. Background Technology

[0002] With the development of automotive technology, in the event of a head-on collision, in order to protect the safety of the occupants and maintain a certain safe space inside the vehicle, the central tunnel needs to withstand a large collision load.

[0003] Existing automotive center channels are generally manufactured using drawing, punching, and flanging processes, which not only have low processing efficiency but also increase the labor intensity of manual operation. In addition, they can only meet the processing requirements of center channels with specific shapes, resulting in low practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a technical solution for processing an integrated casting of a vehicle center channel, addressing the shortcomings of existing technologies. This processing method is simple in steps, not only improving the processing and manufacturing precision and quality of the integrated casting of the center channel, but also meeting the requirements for integrated processing of different numbers of transverse channels, satisfying the requirements of automated production, reducing the labor intensity of manual operation, and allowing the distribution of reinforcing ribs to be selected according to the requirements of different vehicle models, thereby improving safety.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A method for machining an integral casting of a vehicle center channel, characterized by the following steps:

[0007] S1, Carbon fiber composite steel plate cutting

[0008] First, carbon fiber composite steel plates are cut according to the design dimensions of the integrated casting of the central channel.

[0009] S2, longitudinal and transverse channels are die-cast.

[0010] a. First, open the lifting plate using the lifting mechanism on the processing table and move it upward to the required height position. The lower mold is fixedly installed on the top surface of the processing table, and a longitudinal protrusion is horizontally provided at the center of the top surface of the lower mold.

[0011] b. Then, select the appropriate upper mold according to the shape of the integrated casting of the central channel, and fix the upper mold on the bottom surface of the lifting plate;

[0012] c. Next, according to the number of transverse channels on the integrated casting of the central channel, install the corresponding number of transverse forming mechanisms on the lower mold. Move the transverse forming mechanisms horizontally along the lower mold until they are aligned with the position of the transverse channels on the integrated casting of the central channel. Then fix the transverse forming mechanisms so that the ends of the transverse forming mechanisms fit against the sides of the longitudinal protrusions.

[0013] d. Based on the shape between the transverse forming mechanism and the transverse channel on the integral casting of the central channel, determine the size of the auxiliary forming mechanism and install the auxiliary forming mechanism on the transverse forming mechanism.

[0014] e. Finally, place the carbon fiber composite steel plate on the lower mold and clamp it. Then start the lifting mechanism to move the upper mold downward through the lifting plate until it matches the lower mold, so as to realize the integrated die casting of the longitudinal channel and the transverse channel. After the processing is completed, the integrated casting of the middle channel is taken out by the robot arm.

[0015] S3, Heat dissipation groove processing

[0016] The processed integrated casting of the central channel is placed horizontally, and heat dissipation grooves are opened along the plate of the integrated casting of the central channel using a punching device.

[0017] S4, Reinforcing rib welding

[0018] a. First, determine the installation location of the reinforcing ribs based on the distribution of the longitudinal and transverse channels;

[0019] b. Then select a reinforcing rib of appropriate length and weld it to achieve a fixed connection between the reinforcing rib and the longitudinal channel, the transverse channel and the plate.

[0020] S5, Machining of mounting holes

[0021] Determine the location of the mounting holes on the plate according to the design requirements, and drill the mounting holes using drilling equipment.

[0022] This processing method is simple in steps, which can not only improve the processing accuracy and quality of the integrated casting of the central channel, but also meet the requirements of integrated processing of different numbers of transverse channels, meet the requirements of automated production, reduce the labor intensity of manual operation, and allow the distribution position of reinforcing ribs to be selected according to the requirements of different vehicle models, thereby improving safety.

[0023] Furthermore, the lifting mechanism in step S2a includes a hydraulic cylinder, a second guide rod, and a cantilever. The hydraulic cylinder is mounted on the processing table, the second guide rod is vertically connected to the processing table, and the cantilever is fixedly connected to the lifting plate. The lifting plate slides up and down along the second guide rod via the cantilever. A push plate is provided between two adjacent cantilever arms, and the hydraulic cylinder is connected to the push plate via a piston rod. The hydraulic cylinder drives the push plate to move up and down via the piston rod, which in turn drives the lifting plate to rise or fall, satisfying the mold closing or opening requirements between the upper and lower molds, and realizing integrated processing and forming. The second guide rod and the cantilever improve the stability and reliability of the upper mold movement, ensure the mold closing accuracy between the upper and lower molds, and reduce the defect rate.

[0024] Furthermore, the transverse forming mechanism in step S2c includes a transverse ridge, a stop block, and a pusher block. The pusher block is connected to the transverse ridge through the stop block. One end of the transverse ridge is provided with a positioning hole and a first threaded hole, both of which are triangularly distributed. The other end of the transverse ridge matches the longitudinal ridge. The bottom surface of the transverse ridge is attached to the top surface of the lower mold, and the stop block is attached to the edge of the lower mold, ensuring that the transverse forming mechanism can move horizontally along the lower mold. The position of the transverse forming mechanism can be adjusted to meet the processing requirements of different integrated castings with different central channels.

[0025] Furthermore, the booster block is provided with a first through hole and a second through hole, which are parallel to each other. The booster block can drive the entire transverse forming mechanism to move horizontally.

[0026] Furthermore, the depth of the positioning hole is half the length of the transverse convex strip, which helps to improve the stability and reliability of the connection between the auxiliary forming mechanism and the transverse forming mechanism.

[0027] Furthermore, the lower mold is equipped with baffles, and a first guide rod and a slide rail are arranged parallel between two adjacent baffles. The transverse forming mechanism moves along the first guide rod and the slide rail. The first guide rod and the slide rail can ensure that the transverse forming mechanism moves in close contact with the lower mold, reducing errors. When the transverse forming mechanism moves to the required position, the push block can be fixed to the slide rail by fasteners, improving the stability and reliability of die casting.

[0028] Furthermore, the slide rail is equipped with graduations to improve the accuracy of the pusher block movement and reduce the machining error between the longitudinal and transverse channels.

[0029] Furthermore, the auxiliary forming mechanism in step S2 process d includes a forming cover with a cavity inside. Reinforcing strips are evenly distributed along the length of the forming cover inside the cavity. The forming cover is supported on the transverse forming mechanism by the reinforcing strips. By installing the forming cover on the outside of the transverse convex strips, the processing of transverse channels with larger size and depth can be met, which greatly improves the flexibility of use of the die casting forming equipment. The reinforcing strips can support the forming cover and improve its strength.

[0030] Furthermore, the end face of the forming cover is provided with mating holes and positioning strips. Both the mating holes and positioning strips are triangularly distributed. The positioning strips match the positioning holes. By inserting the positioning strips into the positioning holes, a stable connection between the forming cover and the transverse protrusion can be achieved. By connecting the fasteners through the mating holes to the first threaded holes, a fixed connection between the forming cover and the transverse protrusion can be achieved, thereby improving the processing quality.

[0031] Furthermore, the upper mold is provided with a positioning block on its side, the positioning block is provided with a second threaded hole, and the cantilever is provided with a positioning groove. The positioning block and the positioning groove match each other, which facilitates the connection between the upper mold and the lifting plate.

[0032] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0033] 1. The processing method of the present invention has simple steps, which can not only improve the processing and manufacturing precision and quality of the integrated casting of the central channel, but also meet the integrated processing of different numbers of transverse channels, meet the requirements of automated production, reduce the labor intensity of manual operation, and select the distribution position of the reinforcing ribs according to the requirements of different vehicle models, thereby improving safety.

[0034] 2. The bottom surface of the transverse convex strip is attached to the top surface of the lower mold, and the stop block is attached to the edge of the lower mold, ensuring that the transverse forming mechanism can move horizontally along the lower mold. The position of the transverse forming mechanism can be adjusted to meet the processing requirements of different integrated castings with different central channels.

[0035] 3. The first guide rod and slide rail can ensure that the transverse forming mechanism moves in close contact with the lower mold, reducing errors. After the transverse forming mechanism moves to the required position, the push block and slide rail can be fixed by fasteners, improving the stability and reliability of die casting.

[0036] 4. By installing a forming cover on the outside of the transverse convex strip, it is possible to process transverse channels with larger dimensions and depths, which greatly improves the flexibility of use of the die-casting molding equipment. The reinforcing strip can support the forming cover and improve its strength. Attached image description:

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] Figure 1 This is a flowchart illustrating a processing method for an integrated casting of a vehicle center channel according to the present invention;

[0039] Figure 2 This is a schematic diagram of the integrated casting of the central channel in this invention;

[0040] Figure 3 for Figure 2 Schematic diagram of the structure in direction A;

[0041] Figure 4 This is a schematic diagram of the die-casting molding equipment in this invention;

[0042] Figure 5 This is a schematic diagram of the transverse forming mechanism in this invention;

[0043] Figure 6 This is a schematic diagram of the auxiliary molding mechanism in this invention;

[0044] Figure 7 This is a schematic diagram of the internal structure of the molding cover in this invention;

[0045] Figure 8This is a schematic diagram of the connection between the cantilever and the lifting plate in this invention;

[0046] Figure 9 This is a schematic diagram showing the connection between the positioning block and the upper mold in this invention.

[0047] In the diagram: 1-plate; 2-longitudinal channel; 3-transverse channel; 4-reinforcing rib; 5-protrusion; 6-mounting hole; 7-heat dissipation groove; 8-processing table; 9-lower mold; 10-longitudinal protrusion; 11-transverse forming mechanism; 12-baffle; 13-first guide rod; 14-slide rail; 15-lifting plate; 16-upper mold; 17-cantilever; 18-booster plate; 19-second guide rod; 20-hydraulic cylinder; 21-transverse protrusion; 22-stop block; 23-booster block; 24-positioning hole; 25-first threaded hole; 26-first through hole; 27-second through hole; 28-forming cover; 29-fitting hole; 30-positioning strip; 31-reinforcing strip; 32-positioning groove; 33-positioning block; 34-second threaded hole. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0051] like Figures 1 to 9 The image shows a method for processing an integral casting of a vehicle center channel according to the present invention, comprising the following steps:

[0052] S1, Carbon fiber composite steel plate cutting

[0053] First, carbon fiber composite steel plates are cut according to the design dimensions of the integrated casting of the central channel.

[0054] S2, longitudinal channel 2 and transverse channel 3 are die-cast.

[0055] a. First, the lifting plate 15 is opened by the lifting mechanism on the processing table 8, so that it moves upward to the required height position. The lower mold 9 is fixedly installed on the top surface of the processing table 8, and the center of the top surface of the lower mold 9 is provided with a horizontal longitudinal protrusion 10.

[0056] The lifting mechanism includes a hydraulic cylinder 20, a second guide rod 19, and a cantilever 17. The hydraulic cylinder 20 is mounted on the processing table 8, the second guide rod 19 is vertically connected to the processing table 8, and the cantilever 17 is fixedly connected to the lifting plate 15. The lifting plate 15 slides up and down along the second guide rod 19 via the cantilever 17. A push plate 18 is provided between two adjacent cantilever 17s, and the hydraulic cylinder 20 is connected to the push plate 18 via a piston rod. The hydraulic cylinder 20 drives the push plate 18 to move up and down via the piston rod, which in turn drives the lifting plate 15 to rise or fall, meeting the mold closing or opening requirements between the upper mold 16 and the lower mold 9, and realizing integrated processing and molding. The second guide rod 19 and the cantilever 17 improve the stability and reliability of the upper mold 16 during movement, ensure the mold closing accuracy between the upper mold 16 and the lower mold 9, and reduce the defect rate.

[0057] b. Then, select the appropriate upper mold 16 according to the shape of the integrated casting of the middle channel, and fix the upper mold 16 on the bottom surface of the lifting plate 15.

[0058] c. Next, according to the number of transverse channels 3 on the integrated casting of the middle channel, install a corresponding number of transverse forming mechanisms 11 on the lower mold 9. Move the transverse forming mechanism 11 horizontally along the lower mold 9 until it is consistent with the position of the transverse channel 3 on the integrated casting of the middle channel. Then fix the transverse forming mechanism 11 so that the end of the transverse forming mechanism 11 fits against the side of the longitudinal protrusion 10.

[0059] The transverse forming mechanism 11 includes a transverse protrusion 21, a stop block 22, and a pusher block 23. The pusher block 23 is connected to the transverse protrusion 21 through the stop block 22. One end of the transverse protrusion 21 is provided with a positioning hole 24 and a first threaded hole 25. The positioning hole 24 and the first threaded hole 25 are both triangularly distributed. The other end of the transverse protrusion 21 matches the longitudinal protrusion 10. The bottom surface of the transverse protrusion 21 is attached to the top surface of the lower mold 9, and the stop block 22 is attached to the edge of the lower mold 9 to ensure that the transverse forming mechanism 11 can move horizontally along the lower mold 9. The position of the transverse forming mechanism 11 can be adjusted to meet the processing requirements of different integrated castings with different central channels.

[0060] The pusher block 23 is provided with a first through hole 26 and a second through hole 27. The first through hole 26 and the second through hole 27 are parallel to each other. The pusher block 23 can drive the entire horizontal forming mechanism 11 to move horizontally.

[0061] The depth of the positioning hole 24 is half the length of the transverse convex strip 21, which helps to improve the stability and reliability of the connection between the auxiliary forming mechanism and the transverse forming mechanism 11.

[0062] The lower mold 9 is provided with baffles 12. A first guide rod 13 and a slide rail 14 are provided in parallel between two adjacent baffles 12. The transverse forming mechanism 11 moves along the first guide rod 13 and the slide rail 14. The first guide rod 13 and the slide rail 14 can ensure that the transverse forming mechanism 11 moves in close contact with the lower mold 9, reducing errors. When the transverse forming mechanism 11 moves to the required position, the pusher block 23 can be fixed to the slide rail 14 by fasteners, which improves the stability and reliability of die casting.

[0063] The slide rail 14 is equipped with a scale to improve the accuracy of the movement of the booster block 23 and reduce the machining error between the longitudinal channel 2 and the transverse channel 3.

[0064] d. Based on the shape between the transverse forming mechanism 11 and the transverse channel 3 on the integral casting of the middle channel, determine the size of the auxiliary forming mechanism and install the auxiliary forming mechanism on the transverse forming mechanism 11.

[0065] The auxiliary forming mechanism includes a forming cover 28, which has a cavity. Reinforcing strips 31 are evenly distributed along the length of the forming cover 28. The forming cover 28 is supported on the transverse forming mechanism 11 by the reinforcing strips 31. By installing the forming cover 28 on the outside of the transverse convex strips 21, the processing of transverse channels 3 with larger size and depth can be met, which greatly improves the flexibility of the die casting forming equipment. The reinforcing strips 31 can support the forming cover 28 and improve its strength.

[0066] The end face of the forming cover 28 is provided with a mating hole 29 and a positioning strip 30. Both the mating hole 29 and the positioning strip 30 are triangularly distributed. The positioning strip 30 matches the positioning hole 24. By inserting the positioning strip 30 into the positioning hole 24, a stable connection between the forming cover 28 and the transverse protrusion 21 can be achieved. By connecting the fastener through the mating hole 29 to the first threaded hole 25, a fixed connection between the forming cover 28 and the transverse protrusion 21 can be achieved, thereby improving the processing quality.

[0067] e. Finally, place the carbon fiber composite steel plate on the lower mold 9 and clamp it. Then start the lifting mechanism and drive the upper mold 16 to move downward through the lifting plate 15 until it cooperates with the lower mold 9 to realize the integrated die casting of the longitudinal channel 2 and the transverse channel 3. After the processing is completed, the integrated casting of the middle channel is taken out by the robot arm.

[0068] The upper mold 16 is provided with a positioning block 33 on its side. The positioning block 33 is provided with a second threaded hole 34. The cantilever 17 is provided with a positioning groove 32. The positioning block 33 and the positioning groove 32 are matched to facilitate the connection between the upper mold 16 and the lifting plate 15.

[0069] S3, heat sink 7 machining

[0070] The processed integrated casting of the central channel is placed horizontally, and heat dissipation grooves 7 are opened along the plate 1 of the integrated casting of the central channel using a punching device.

[0071] S4, Reinforcing Rib 4 Welding

[0072] a. First, determine the installation position of the reinforcing rib 4 based on the distribution of the longitudinal channel 2 and the transverse channel 3;

[0073] b. Then select a suitable length of reinforcing rib 4, and achieve a fixed connection between the reinforcing rib 4 and the longitudinal channel 2, the transverse channel 3 and the plate 1 by welding;

[0074] S5, Mounting Hole 6 Machining

[0075] According to the design requirements, determine the position of the mounting hole 6 on the plate 1, and drill the mounting hole 6 using drilling equipment. The mounting hole 6 can be equipped with a protrusion 5, and the mounting hole 6 vertically penetrates the protrusion 5.

[0076] This processing method is simple in steps, which can not only improve the processing and manufacturing precision and quality of the integrated casting of the central channel, but also meet the requirements of integrated processing of different numbers of transverse channels 3, meet the requirements of automated production, reduce the labor intensity of manual operation, and select the distribution position of the reinforcing ribs 4 according to the requirements of different vehicle models, thereby improving safety.

[0077] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A method for machining an integral casting of a vehicle center channel, characterized in that... Includes the following steps: S1, Carbon fiber composite steel plate cutting First, carbon fiber composite steel plates are cut according to the design dimensions of the integrated casting of the central channel. S2, longitudinal and transverse channels are die-cast. a. First, open the lifting plate using the lifting mechanism on the processing table and move it upward to the required height position. The lower mold is fixedly installed on the top surface of the processing table, and a longitudinal protrusion is horizontally provided at the center of the top surface of the lower mold. b. Then, select the appropriate upper mold according to the shape of the integrated casting of the central channel, and fix the upper mold on the bottom surface of the lifting plate; c. Next, according to the number of transverse channels on the integrated casting of the central channel, install the corresponding number of transverse forming mechanisms on the lower mold. Move the transverse forming mechanisms horizontally along the lower mold until they are aligned with the position of the transverse channels on the integrated casting of the central channel. Then fix the transverse forming mechanisms so that the ends of the transverse forming mechanisms fit against the sides of the longitudinal protrusions. d. Based on the shape between the transverse forming mechanism and the transverse channel on the integral casting of the central channel, determine the size of the auxiliary forming mechanism and install the auxiliary forming mechanism on the transverse forming mechanism. e. Finally, place the carbon fiber composite steel plate on the lower mold and clamp it. Then start the lifting mechanism to move the upper mold downward through the lifting plate until it matches the lower mold, so as to realize the integrated die casting of the longitudinal channel and the transverse channel. After the processing is completed, the integrated casting of the middle channel is taken out by the robot arm. S3, Heat dissipation groove processing The processed integrated casting of the central channel is placed horizontally, and heat dissipation grooves are opened along the plate of the integrated casting of the central channel using a punching device. S4, Welding of reinforcing ribs a. First, determine the installation location of the reinforcing ribs based on the distribution of the longitudinal and transverse channels; b. Then select a reinforcing rib of appropriate length and weld it to achieve a fixed connection between the reinforcing rib and the longitudinal channel, the transverse channel and the plate. S5, Machining of mounting holes Determine the location of the mounting holes on the plate according to the design requirements, and drill the mounting holes using drilling equipment.

2. The processing method of an integrated casting for automotive center tunnels according to claim 1, characterized in that: The lifting mechanism in step S2 process a includes a hydraulic cylinder, a second guide rod, and a cantilever. The hydraulic cylinder is mounted on the processing table, the second guide rod is vertically connected to the processing table, the cantilever is fixedly connected to the lifting plate, and the lifting plate slides up and down along the second guide rod via the cantilever. A booster plate is provided between two adjacent cantilever arms, and the hydraulic cylinder is connected to the booster plate via a piston rod.

3. The processing method of an integrated casting for automotive center tunnels according to claim 1, characterized in that: The transverse forming mechanism in step S2c includes a transverse convex strip, a stop block, and a pusher block. The pusher block is connected to the transverse convex strip through the stop block. One end of the transverse convex strip is provided with a positioning hole and a first threaded hole. The positioning hole and the first threaded hole are both triangularly distributed. The other end of the transverse convex strip matches the longitudinal convex strip.

4. The processing method of an integrated casting for automotive center tunnels according to claim 3, characterized in that: The booster block is provided with a first through hole and a second through hole, the first through hole and the second through hole being parallel to each other.

5. The processing method of an integral casting for a vehicle center channel according to claim 3, characterized in that: The depth of the positioning hole is half the length of the transverse protrusion.

6. The processing method of an integral casting for a vehicle center channel according to claim 1, characterized in that: The lower mold is provided with baffles, and a first guide rod and a slide rail are provided in parallel between two adjacent baffles. The transverse forming mechanism moves along the first guide rod and the slide rail.

7. The processing method of an integral casting for a vehicle center channel according to claim 6, characterized in that: The slide rail is marked with graduations.

8. The processing method of an integral casting for a vehicle center channel according to claim 3, characterized in that: The auxiliary forming mechanism in step S2 process d includes a forming cover, which has a cavity. Reinforcing strips are evenly distributed in the cavity along the length of the forming cover, and the forming cover is supported on the transverse forming mechanism by the reinforcing strips.

9. A method for machining an integral casting of a vehicle center channel according to claim 8, characterized in that: The end face of the molded cover is provided with mating holes and positioning strips. The mating holes and positioning strips are both triangularly distributed, and the positioning strips match the positioning holes.

10. A method for processing an integral casting of a vehicle center channel according to claim 2, characterized in that: The upper mold has a positioning block on its side, the positioning block has a second threaded hole, the cantilever has a positioning groove, and the positioning block matches the positioning groove.

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