Machining method of vehicle middle channel integrated casting

Abstract

The invention discloses a machining method for an automotive middle channel integrated casting. The machining method comprises the following steps that S1, a carbon fiber composite steel plate is cut; s2, the longitudinal channel and the transverse channel are subjected to die-casting forming; s3, heat dissipation groove machining; s4, welding reinforcing ribs; and S5, mounting hole machining. The machining and manufacturing precision and quality of the middle channel integrated casting can be improved, integrated machining of different numbers of transverse channels can be met, the requirement for automatic production is met, meanwhile, the labor intensity of manual operation is lowered, the distribution positions of reinforcing ribs can be selected according to the requirements of different vehicle types, and safety is improved.

Description

Technical Field

[0001] The invention relates to a method for processing a vehicle center channel integrated casting. Background Art

[0002] With the development of automobile technology, when cars collide head-on, in order to protect the safety of occupants and maintain a certain safety space inside the car, the center channel needs to withstand a larger collision load.

[0003] In the prior art, the vehicle center channel is generally manufactured by drawing and punching and flanging processes, which not only has low processing efficiency, but also increases the labor intensity of manual operation. At the same time, it can only meet the processing of the center channel of a specific shape, and has low practicality. Summary of the invention

[0004] The purpose of the present invention is to provide a technical solution for a method for processing an integrated casting of a vehicle center channel in order to address the deficiencies in the prior art. The processing method has simple steps, which can not only improve the processing and manufacturing accuracy and quality of the integrated casting of the center channel, but also meet the integrated processing of different numbers of transverse channels and the requirements of automated production. At the same time, it reduces the labor intensity of manual operation, can select the distribution position of reinforcing ribs according to the requirements of different vehicle models, and improve safety.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A method for processing a vehicle center channel integral casting, characterized by comprising the following steps:

[0007] S1. Carbon fiber composite steel plate cutting

[0008] First, the carbon fiber composite steel plate is cut according to the design size of the central channel integrated casting;

[0009] S2, longitudinal channel and transverse channel die casting

[0010] a. First, the lifting plate is opened through the lifting mechanism on the processing table to move it upward to the required height position. A lower die is fixedly installed on the top surface of the processing table, and a longitudinal convex strip is horizontally provided at the center of the top surface of the lower die;

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

[0012] c. Then, according to the number of transverse channels on the central channel integral casting, a corresponding number of transverse forming mechanisms are installed on the lower die, and the transverse forming mechanisms are horizontally moved along the lower die until they are aligned with the positions of the transverse channels on the central channel integral casting, and then the transverse forming mechanisms are fixed so that the ends of the transverse forming mechanisms are in contact with the side surfaces of the longitudinal convex strips;

[0013] d. Determine the size of the auxiliary molding mechanism according to the shape between the transverse molding mechanism and the transverse channel on the integral casting of the middle channel, and install the auxiliary molding mechanism on the transverse molding mechanism;

[0014] e. Finally, the carbon fiber composite steel plate is placed on the lower die and clamped, and then the lifting mechanism is started to drive the upper die to move downward through the lifting plate until it cooperates with the lower die to achieve 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 manipulator;

[0015] S3. Heat sink processing

[0016] The processed central channel integral casting is placed horizontally, and heat dissipation grooves are opened along the plate body of the central channel integral casting by punching equipment;

[0017] S4, reinforcement welding

[0018] a. First, determine the installation position of the reinforcement ribs according to the distribution positions of the longitudinal channels and transverse channels;

[0019] b. Then select a reinforcing rib of appropriate length and achieve fixed connection between the reinforcing rib and the longitudinal channel, transverse channel and plate body by welding;

[0020] S5. Mounting hole processing

[0021] Determine the position of the mounting hole on the board according to the design requirements, and drill the mounting hole using a drilling device.

[0022] The processing method has simple steps, which can not only improve the processing and manufacturing accuracy and quality of the integrated casting of the central channel, but also meet the integrated processing of different numbers of transverse channels and the requirements of automated production. At the same time, it reduces the labor intensity of manual operation and can select the distribution position of the reinforcing ribs according to the requirements of different vehicle models to improve safety.

[0023] Furthermore, the lifting mechanism in process a of step S2 includes a hydraulic cylinder, a second guide rod and a cantilever, the hydraulic cylinder is arranged on the processing table, the second guide rod is vertically connected to the processing table, the cantilever is fixedly connected to the lifting plate, the lifting plate slides up and down along the second guide rod through the cantilever, a booster plate is arranged between two adjacent cantilevers, and the hydraulic cylinder is connected to the booster plate through a piston rod; the booster plate is driven up and down by the hydraulic cylinder via the piston rod, and then the lifting plate can be driven up or down, so as to meet the requirements of mold closing or mold opening between the upper mold and the lower mold, and realize integrated processing and molding; the second guide rod and the cantilever improve the stability and reliability of the upper mold during movement, ensure the mold closing accuracy between the upper mold and the lower mold, and reduce the defective rate.

[0024] Furthermore, the transverse forming mechanism in step S2 process c includes a transverse convex strip, a stop block and a thrust block, the thrust 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 distributed in a triangular shape, and the other end of the transverse convex strip matches the longitudinal convex strip; 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, and the position of the transverse forming mechanism can be adjusted to meet the processing requirements of different central channel integrated castings.

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

[0026] Furthermore, the depth of the positioning hole is 1 / 2 of the length of the transverse convex strip, which is beneficial to improving the stability and reliability of the connection between the auxiliary forming mechanism and the transverse forming mechanism.

[0027] Furthermore, the lower mold is provided with a baffle, and a first guide rod and a slide rail are parallelly provided 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 proximity to the lower mold to reduce errors. When the transverse forming mechanism moves to the desired position, the booster block and the slide rail can be fixed by fasteners to improve stability and reliability during die casting.

[0028] Furthermore, the slide rail is provided with scales to improve the accuracy of the movement of the booster block and reduce the processing error between the longitudinal channel and the transverse channel.

[0029] Furthermore, the auxiliary molding mechanism in step S2 process d includes a molding hood, a cavity is provided in the molding hood, and reinforcing strips are evenly distributed in the cavity along the length direction of the molding hood. The molding hood is supported on the transverse molding mechanism by the reinforcing strips. By installing the molding hood on the outer side of the transverse convex strips, it can meet the processing of transverse channels of larger size and depth, which greatly improves the use flexibility of the die-casting molding equipment. The reinforcing strips can support the molding hood and improve the strength of the molding hood.

[0030] Furthermore, the end face of the molding cover is provided with a matching hole and a positioning strip, and the matching hole and the positioning strip are distributed in a triangular shape, and the positioning strip matches the positioning hole. By inserting the positioning strip into the positioning hole, a stable connection between the molding cover and the transverse convex strip can be achieved. By connecting the fastener through the matching hole to the first threaded hole, a fixed connection between the molding cover and the transverse convex strip can be achieved, thereby improving the processing quality.

[0031] Furthermore, a positioning block is provided on the side of the upper mold, the positioning block is provided with a second threaded hole, the cantilever is provided with a positioning groove, and the positioning block matches the positioning groove to facilitate the matching connection between the upper mold and the lifting plate.

[0032] The present invention has the following beneficial effects due to the adoption of the above technical solution:

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

[0034] 2. The bottom surface of the transverse convex strip is attached to the top surface of the lower die, and the stopper is attached to the edge of the lower die, so as to ensure that the transverse forming mechanism can move horizontally along the lower die, adjust the position of the transverse forming mechanism, and meet the processing requirements of different central channel integrated castings.

[0035] 3. The first guide rod and the slide rail can ensure that the transverse forming mechanism fits the movement of the lower die to reduce the error. When the transverse forming mechanism moves to the desired position, the booster block and the slide rail can be fixed by fasteners to improve the stability and reliability during die casting.

[0036] 4. By installing a molding cover on the outside of the transverse convex strip, the processing of transverse channels of larger size and depth can be met, which greatly improves the flexibility of the die-casting molding equipment. The reinforcing strip can support the molding cover and improve the strength of the molding cover. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0038] Figure 1 It is a flow chart of a method for processing a vehicle center channel integrated casting according to the present invention;

[0039] Figure 2 It is a schematic structural diagram of the central channel integrated casting in the present invention;

[0040] Figure 3 for Figure 2 Structural schematic diagram of the middle A direction;

[0041] Figure 4 It is a structural schematic diagram of the die-casting molding equipment in the present invention;

[0042] Figure 5 It is a structural schematic diagram of the transverse forming mechanism in the present invention;

[0043] Figure 6 It is a structural schematic diagram of the auxiliary forming mechanism in the present invention;

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

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

[0046] Fig. 9 It is a schematic diagram of the connection between the positioning block and the upper mold in the present invention.

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

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0051] like Figures 1 to 9 As shown, a method for processing a vehicle central channel integral casting of the present invention comprises the following steps:

[0052] S1. Carbon fiber composite steel plate cutting

[0053] First, the carbon fiber composite steel plate is cut according to the design size of the central channel integrated casting;

[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, and is moved upward to a desired height position. A lower die 9 is fixedly installed on the top surface of the processing table 8, and a longitudinal convex strip 10 is horizontally provided at the center of the top surface of the lower die 9;

[0056] The lifting mechanism includes a hydraulic cylinder 20, a second guide rod 19 and a cantilever 17. The hydraulic cylinder 20 is arranged on the processing table 8. The second guide rod 19 is vertically connected to the processing table 8. 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 through the cantilever 17. A booster plate 18 is arranged between two adjacent cantilevers 17. The hydraulic cylinder 20 is connected to the booster plate 18 through a piston rod; the booster plate 18 is driven up and down by the hydraulic cylinder 20 through the piston rod, and then the lifting plate 15 can be driven to rise or fall, so as to meet the requirements of mold closing or mold opening between the upper mold 16 and the lower mold 9, and realize integrated processing and molding. The second guide rod 19 and the cantilever 17 improve the stability and reliability of the upper mold 16 when moving, ensure the mold closing accuracy between the upper mold 16 and the lower mold 9, and reduce the defective rate.

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

[0058] c. Then, according to the number of transverse channels 3 on the integral casting of the middle channel, a corresponding number of transverse forming mechanisms 11 are installed on the lower die 9, and the transverse forming mechanisms 11 are horizontally moved along the lower die 9 until the positions of the transverse channels 3 on the integral casting of the middle channel are consistent, and then the transverse forming mechanisms 11 are fixed so that the ends of the transverse forming mechanisms 11 are in contact with the side surfaces of the longitudinal ridges 10;

[0059] The transverse forming mechanism 11 includes a transverse ridge 21, a stopper 22 and a booster block 23. The booster block 23 is connected to the transverse ridge 21 through the stopper 22. A positioning hole 24 and a first threaded hole 25 are provided at one end of the transverse ridge 21. The positioning hole 24 and the first threaded hole 25 are both distributed in a triangular shape. The other end of the transverse ridge 21 matches the longitudinal ridge 10. The bottom surface of the transverse ridge 21 is attached to the top surface of the lower mold 9, and the stopper 22 is attached to the edge of the lower mold 9, ensuring that the transverse forming mechanism 11 can move horizontally along the lower mold 9, and the position of the transverse forming mechanism 11 can be adjusted to meet the processing requirements of different central channel integrated castings.

[0060] The boosting 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 boosting block 23 can drive the entire transverse forming mechanism 11 to move horizontally.

[0061] The depth of the positioning hole 24 is 1 / 2 of the length of the transverse ridge 21 , which is beneficial to improving 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 a baffle 12, and a first guide rod 13 and a slide rail 14 are parallelly provided between two adjacent baffles 12. The transverse molding 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 molding mechanism 11 moves in close proximity to the lower mold 9 to reduce errors. When the transverse molding mechanism 11 moves to the desired position, the booster block 23 can be fixed to the slide rail 14 by fasteners to improve stability and reliability during die casting.

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

[0064] d. Determine the size of the auxiliary molding mechanism according to the shape between the transverse molding mechanism 11 and the transverse channel 3 on the integral casting of the middle channel, and install the auxiliary molding mechanism on the transverse molding mechanism 11;

[0065] The auxiliary molding mechanism includes a molding hood 28, which has a cavity inside. Reinforcing strips 31 are evenly distributed in the cavity along the length direction of the molding hood 28. The molding hood 28 is supported on the transverse molding mechanism 11 by the reinforcing strips 31. By installing the molding hood 28 on the outer side of the transverse convex strip 21, the processing of transverse channels 3 of larger size and depth can be met, which greatly improves the use flexibility of the die-casting molding equipment. The reinforcing strips 31 can support the molding hood 28 and improve the strength of the molding hood 28.

[0066] The end face of the forming cover 28 is provided with a matching hole 29 and a positioning strip 30. The matching hole 29 and the positioning strip 30 are distributed in a triangular shape. 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 ridge 21 can be achieved. By fasteners passing through the matching hole 29 and connecting to the first threaded hole 25, a fixed connection between the forming cover 28 and the transverse ridge 21 can be achieved, thereby improving the processing quality.

[0067] e. Finally, the carbon fiber composite steel plate is placed on the lower die 9 and clamped, and then the lifting mechanism is started to drive the upper die 16 to move downward through the lifting plate 15 until it cooperates with the lower die 9 to achieve 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 manipulator;

[0068] A positioning block 33 is provided on the side of the upper mold 16 , and 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 matches the positioning groove 32 , so as to facilitate the matching connection between the upper mold 16 and the lifting plate 15 .

[0069] S3, heat sink 7 processing

[0070] The processed one-piece casting of the middle channel is placed horizontally, and heat dissipation grooves 7 are opened on the plate body 1 of the one-piece casting of the middle channel by punching equipment;

[0071] S4, reinforcement 4 welding

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

[0073] b. Then, a reinforcing rib 4 of appropriate length is selected, and a fixed connection between the reinforcing rib 4 and the longitudinal channel 2, the transverse channel 3 and the plate body 1 is achieved by welding;

[0074] S5, mounting hole 6 processing

[0075] The position of the mounting hole 6 is determined on the plate body 1 according to the design requirements, and the mounting hole 6 is drilled by a drilling device. A protrusion 5 can be arranged at the position of the mounting hole 6 , and the mounting hole 6 vertically passes through the protrusion 5 .

[0076] The processing method has simple steps, which can not only improve the processing and manufacturing accuracy and quality of the integrated casting of the central channel, but also meet the integrated processing of different numbers of transverse channels 3 and the requirements of automated production. At the same time, it reduces the labor intensity of manual operation and can select the distribution position of the reinforcing ribs 4 according to the requirements of different vehicle models to improve safety.

[0077] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A method for processing a vehicle central channel integral casting, characterized in that The steps include: S1. Carbon fiber composite steel plate cutting First, the carbon fiber composite steel plate is cut according to the design size of the central channel integrated casting; S2, longitudinal channel and transverse channel die casting a. First, the lifting plate is opened through the lifting mechanism on the processing table to move it upward to the required height position. A lower die is fixedly installed on the top surface of the processing table, and a longitudinal convex strip is horizontally provided at the center of the top surface of the lower die; b. Then select the corresponding upper mold according to the shape of the central channel integrated casting, and fix the upper mold on the bottom surface of the lifting plate; c. Then, according to the number of transverse channels on the central channel integral casting, a corresponding number of transverse forming mechanisms are installed on the lower die, and the transverse forming mechanisms are horizontally moved along the lower die until they are aligned with the positions of the transverse channels on the central channel integral casting, and then the transverse forming mechanisms are fixed so that the ends of the transverse forming mechanisms are in contact with the side surfaces of the longitudinal convex strips; d. Determine the size of the auxiliary molding mechanism according to the shape between the transverse molding mechanism and the transverse channel on the integral casting of the middle channel, and install the auxiliary molding mechanism on the transverse molding mechanism; e. Finally, the carbon fiber composite steel plate is placed on the lower die and clamped, and then the lifting mechanism is started to drive the upper die to move downward through the lifting plate until it cooperates with the lower die to achieve 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 manipulator; S3. Heat sink processing The processed central channel integral casting is placed horizontally, and heat dissipation grooves are opened along the plate body of the central channel integral casting by punching equipment; S4, reinforcement welding a. First, determine the installation position of the reinforcement ribs according to the distribution positions of the longitudinal channels and transverse channels; b. Then select a reinforcing rib of appropriate length and achieve fixed connection between the reinforcing rib and the longitudinal channel, transverse channel and plate body by welding; S5. Mounting hole processing Determine the position of the mounting hole on the board according to the design requirements, and drill the mounting hole using a drilling device.

2. The method for processing a vehicle center channel integral casting according to claim 1, characterized in that: The lifting mechanism in process a of step S2 includes a hydraulic cylinder, a second guide rod and a cantilever, wherein the hydraulic cylinder is arranged on the processing table, the second guide rod is vertically connected to the processing table, the cantilever is fixedly connected to the lifting plate, the lifting plate slides up and down along the second guide rod through the cantilever, a booster plate is arranged between two adjacent cantilevers, and the hydraulic cylinder is connected to the booster plate through a piston rod.

3. The method for processing a vehicle center channel integral casting according to claim 1, characterized in that: The transverse forming mechanism in step S2 process c includes a transverse ridge, a stop block and a booster block, the booster 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, the positioning hole and the first threaded hole are distributed in a triangular shape, and the other end of the transverse ridge matches the longitudinal ridge.

4. The method for processing a vehicle center channel integral casting according to claim 3, characterized in that: The boost block is provided with a first through hole and a second through hole, and the first through hole and the second through hole are parallel to each other.

5. The method for processing a vehicle center channel integral casting according to claim 3, characterized in that: The depth of the positioning hole is 1 / 2 of the length of the transverse convex strip.

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

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

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

9. The method for processing a vehicle center channel integral casting according to claim 8, characterized in that: The end surface of the molding cover is provided with a matching hole and a positioning strip, the matching hole and the positioning strip are both distributed in a triangular shape, and the positioning strip matches the positioning hole.

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

Images