Casting machining equipment and method for automobile motor end cover production

Abstract

The invention belongs to the technical field of motor end cover production, and particularly relates to casting machining equipment and method for automobile motor end cover production. The casting machining equipment comprises a bottom plate, a top plate, stand columns, a lower die, an upper die, a height adjusting nut, a die assembly push rod and a polishing device; the four stand columns are jointly sleeved with a lower die and an upper die located above the lower die in a sliding mode, threaded grooves are formed in the lower portions of the stand columns, height adjusting nuts used for supporting the lower die are arranged on the outer sides of the lower portions of the stand columns in a sleeving mode, a die assembly push rod used for driving the upper die to move vertically is installed on the top plate, and a grinding device is jointly installed on the lower die and the bottom plate. All the components cooperate with one another, the center shaft hole with the smooth inner wall and the edge installation hole with the smooth inner wall can be formed after casting, and no extra working procedure is needed for trepanning and polishing operation; in the casting process, casting liquid flowing into the mold cavity can be heated, and the situation that the casting quality is affected due to poor flow caused by temperature loss of the casting liquid is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of motor end cover production, and particularly relates to a casting processing equipment and method for automobile motor end cover production. BACKGROUND

[0002] The automobile motor end cover adopts casting processing, which has the following significant advantages in combination with material properties, process efficiency and cost benefits and other factors, and specific analysis is as follows: 1) the cast aluminum end cover has low density, which can significantly reduce the overall weight of the motor and improve the fuel efficiency or endurance of the automobile; at the same time, the heat conductivity of aluminum is better than that of cast iron, which can effectively improve the heat dissipation of the motor and reduce the risk of overheating. For high-strength demand scenarios such as high-power motors, cast iron casting can still provide higher mechanical strength and carrying capacity through materials such as ductile cast iron. 2) The casting process can directly form complex-shaped and fine-cavity end cover structures, reducing subsequent machining steps, especially for end covers that need to consider both function and assembly accuracy. 3) The casting process is suitable for mass production, reducing the cost of individual pieces through mold reuse. Cast iron has good fluidity, and the casting process is simple, with a cost much lower than that of ordinary wrought iron machining; although aluminum die casting has higher mold costs, it has high production efficiency and is still competitive in the long run. 4) The size of the cast blank is close to the finished product, requiring only a small amount of finishing, significantly shortening the production cycle and reducing material waste.

[0003] An automobile motor end cover designed by the applicant is shown in Figure 2 The end cover has a central shaft hole, a side mounting hole and a reinforcing structure.

[0004] For the above-mentioned automobile motor end cover, the existing casting processing equipment for automobile motor end cover production has the following deficiencies when in use: first, it cannot form a central shaft hole and a side mounting hole with smooth inner walls after casting, and additional processes are required for hole opening and polishing; second, during the casting process, the casting liquid is prone to poor flow due to temperature loss, which affects the casting quality. Therefore, it is necessary to optimize and improve the existing casting processing equipment for automobile motor end cover production. SUMMARY

[0005] The purpose of the present application is to overcome the above-mentioned problems in the prior art and provide a casting processing equipment and method for automobile motor end cover production.

[0006] To achieve the above technical purposes and effects, the present application is implemented by the following technical solutions:

[0007] The application provides a casting processing equipment for automobile motor end cover production, which comprises a bottom plate, a top plate, a stand, a lower mold, an upper mold, a height adjusting nut, a mold closing push rod and a polishing device, the four corners of the bottom plate and the top plate are provided with the stand, four stand are provided with the lower mold and the upper mold above the lower mold in common sliding mode, the lower part of the stand is provided with a threaded groove, the lower part of the stand is provided with the height adjusting nut outside for supporting the lower mold, the top plate is provided with the mold closing push rod for driving the upper mold to vertically displace, and the lower mold and the bottom plate are provided with the polishing device in common.

[0008] Further, in the casting processing equipment for automobile motor end cover production, the automobile motor end cover workpiece comprises an end cover body, one side of the end cover body is provided with a concentric reinforcing inner ring and a reinforcing outer ring, a plurality of radial reinforcing rib plates are connected between the reinforcing inner ring and the reinforcing outer ring, and the reinforcing inner ring, the reinforcing outer ring and the radial reinforcing rib plates jointly constitute a reinforcing structure.

[0009] The area inside the reinforcing inner ring serves as a first heating cavity, and the reinforcing inner ring, the reinforcing outer ring and the radial reinforcing rib plates jointly enclose a plurality of second heating cavities.

[0010] The end cover body is provided with a central shaft hole at the center, and a plurality of edge mounting holes are uniformly arranged on the periphery of the reinforcing outer ring of the end cover body.

[0011] Further, in the casting processing equipment for automobile motor end cover production, the lower mold comprises a lower mold block, first guide column holes matched with the stand are arranged at the four corners of the lower mold block, a lower mold cavity matched with the shape of the end cover body is arranged inward at the upper end of the lower mold block, an axle hole forming groove is arranged at the center of the bottom surface of the lower mold cavity of the lower mold block, and a plurality of mounting hole forming grooves are uniformly arranged at the periphery of the bottom surface of the lower mold cavity of the lower mold block.

[0012] Further, in the casting processing equipment for automobile motor end cover production, the upper mold comprises an upper mold block, second guide column holes matched with the stand are arranged at the four corners of the upper mold block, an upper mold cavity matched with the thickness of the reinforcing structure is arranged inward at the lower end of the upper mold block, a first heating block matched with the shape of the first heating cavity is arranged at the center of the top surface of the upper mold cavity of the upper mold block, a plurality of second heating blocks matched with the shape of the second heating cavity are uniformly arranged at the periphery of the top surface of the upper mold cavity of the upper mold block, and a plurality of gates communicated with the outer edge area of the upper mold cavity are arranged at the upper end of the upper mold block.

[0013] Further, in the casting processing equipment for automobile motor end cover production, electric heaters are arranged in the first heating block and the second heating block.

[0014] Further, in the automobile motor end cover production casting processing equipment, the polishing device comprises a height adjusting push rod, a movable support plate, a first polishing motor, a shaft hole forming column, a second polishing motor and a mounting hole forming column, the cylinder body of the height adjusting push rod is fixed on the bottom plate, the movable end of the height adjusting push rod supports the movable support plate, the first polishing motor is installed at the center of the movable support plate, the output end of the first polishing motor is provided with the shaft hole forming column capable of extending into the shaft hole forming groove, a plurality of second polishing motors are installed on the movable support plate in the circumferential direction, and the output end of the second polishing motor is provided with the mounting hole forming column capable of extending into the corresponding mounting hole forming groove.

[0015] Further, in the automobile motor end cover production casting processing equipment, the upper part of each of the shaft hole forming column and the mounting hole forming column is provided with a smooth section and a rough polishing section below the smooth section, and the axial length values of the smooth section and the rough polishing section are matched with the thickness value of the end cover body.

[0016] The application also provides an automobile motor end cover production casting processing method, which is realized based on the automobile motor end cover production casting processing equipment and comprises the following steps.

[0017] S1, the initial position of the lower mold is adjusted by using the height adjusting nut, the upper mold is pressed on the upper side of the lower mold by using the mold closing push rod, the height adjusting push rod in the polishing device is started, and the shaft hole forming column and the mounting hole forming column are driven by the movable support plate to extend into the corresponding shaft hole forming groove and mounting hole forming groove respectively;

[0018] S2, the casting liquid is filled into the closed upper mold and lower mold by using the sprue, and the first heating block and the second heating block are used to heat the casting liquid flowing therein, so that the casting cavity is smoothly filled and formed.

[0019] S3, when the mold is cooled, the upper mold and the lower mold are separated by using the mold closing push rod, the movable support plate is driven to move upward by using the height adjusting push rod, the rough polishing sections of the shaft hole forming column and the mounting hole forming column are respectively inserted into the corresponding shaft hole forming groove and mounting hole forming groove, and the first polishing motor and the second polishing motor are started to polish.

[0020] The application has the following beneficial effects:

[0021] The application has reasonable structure, which mainly comprises a bottom plate, a top plate, a stand, a lower mold, an upper mold, a height adjusting nut, a mold closing push rod and a polishing device, and the components are cooperated, on the one hand, after casting, the center shaft hole and the edge mounting hole with smooth inner walls can be formed without additional process of hole polishing, and on the other hand, during the casting process, the casting liquid flowing into the mold cavity can be heated to avoid poor flow caused by temperature loss, thereby avoiding the occurrence of casting quality problems.

[0022] Of course, implementing any product of the present application does not necessarily require achieving all of the above advantages at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0024] Figure 1 It is a structural schematic diagram of the whole application;

[0025] Figure 2 It is a structural schematic diagram of the automobile motor end cover workpiece in the present application;

[0026] Figure 3 It is a front view schematic diagram of the automobile motor end cover workpiece in the present application;

[0027] Figure 4 It is a top view schematic diagram of the automobile motor end cover workpiece in the present application;

[0028] Figure 5 It is a structural schematic diagram of the lower die in the present application;

[0029] Figure 6 It is a structural schematic diagram of the upper die in the present application;

[0030] Figure 7 It is a structural schematic diagram of the polishing device in the present application;

[0031] Figure 8 It is a structural schematic diagram of the automobile motor end cover workpiece in the present application;

[0032] In the drawings, the reference signs of the components are as follows:

[0033] 1-bottom plate, 2-top plate, 3-stand column, 4-lower die, 401-lower die block, 402-first guide column hole, 403-lower die cavity, 404-axle hole forming groove, 405-mounting hole forming groove, 5-upper die, 501-upper die block, 502-second guide column hole, 503-upper die cavity, 504-first heating block, 505-second heating block, 506-gate, 6-height adjusting nut, 7-die clamping push rod, 8-polishing device, 801-movable support plate, 802-height adjusting push rod, 803-first polishing motor, 804-axle hole forming column, 805-second polishing motor, 806-mounting hole forming column, 9-automobile motor end cover workpiece, 901-end cover body, 902-strengthening inner ring, 903-strengthening outer ring, 904-radial strengthening rib plate, 905-first heating cavity, 906-second heating cavity, 907-center axle hole, 908-edge mounting hole. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0035] like Figures 1-8 As shown, this embodiment provides a casting processing equipment for the production of automobile motor end covers, including a base plate 1, a top plate 2, a column 3, a lower mold 4, an upper mold 5, a height adjustment nut 6, a mold clamping push rod 7 and a grinding device 8. The columns 3 are installed between the four corners of the base plate 1 and the top plate 2. The four columns 3 are slidably sleeved with the lower mold 4 and the upper mold 5 located above it. The lower part of the column 3 is provided with a threaded groove, and the outer side of the lower part of the column 3 is sleeved with a height adjustment nut 6 for supporting the lower mold 4. A mold clamping push rod 7 for driving the upper mold 5 to perform vertical displacement is installed on the top plate 2, and a grinding device 8 is installed together with the lower mold 4 and the base plate 1.

[0036] In this embodiment, the automobile motor end cover workpiece 9 includes an end cover body 901, and a concentric reinforcing inner ring 902 and a reinforcing outer ring 903 are provided on one side of the end cover body 901. A plurality of radial reinforcing ribs 904 are connected between the reinforcing inner ring 902 and the reinforcing outer ring 903. The reinforcing inner ring 902, the reinforcing outer ring 903 and the radial reinforcing ribs 904 together constitute a reinforcing structure.

[0037] The area inside the reinforcing inner ring 902 serves as a first heating cavity 905 , and the reinforcing inner ring 902 , the reinforcing outer ring 903 and the radial reinforcing ribs 904 together form a plurality of second heating cavities 906 .

[0038] A central axis hole 907 is opened at the center of the end cover body 901 , and a plurality of edge mounting holes 908 are evenly opened on the periphery of the reinforcing outer ring 903 of the end cover body 901 .

[0039] In this embodiment, the lower mold 4 includes a lower module part 401, and the four corners of the lower module part 401 are provided with first guide column holes 402 that cooperate with the column 3. The upper end of the lower module part 401 is provided with a lower mold cavity 403 that cooperates with the shape of the end cover body 901. The lower module part 401 is located at the center of the bottom surface of the lower mold cavity 403 and is provided with an axis hole forming groove 404. The lower module part 401 is located at the periphery of the bottom surface of the lower mold cavity 403 and is evenly provided with multiple mounting hole forming grooves 405.

[0040] In this embodiment, the upper mold 5 includes an upper die block 501. Second guide post holes 502 are provided at the four corners of the upper die block 501 to cooperate with the upright posts 3. An upper die cavity 503 is provided inwardly at the lower end of the upper die block 501 to match the thickness of the reinforcement structure. A first heating block 504 is provided at the center of the top surface of the upper die cavity 503, which is shaped to match the first heating cavity 905. Multiple second heating blocks 505 are evenly distributed around the periphery of the top surface of the upper die cavity 501, which are shaped to match the second heating cavity 906. Multiple gates 506 are provided at the upper end of the upper die block 501, which communicate with the outer edge of the upper die cavity 503.

[0041] In this embodiment, electric heaters are built into the first heating block 504 and the second heating block 505 .

[0042] In this embodiment, the grinding device 8 includes a height adjustment push rod 802, a movable support plate 801, a first grinding motor 803, an axial hole forming column 804, a second grinding motor 805, and a mounting hole forming column 806. The cylinder of the height adjustment push rod 802 is fixed to the base plate 1, and the movable end of the height adjustment push rod 802 supports the movable support plate 801. The first grinding motor 803 is mounted at the center of the movable support plate 801, and the output end of the first grinding motor 803 is mounted with an axial hole forming column 804 that can extend into the axial hole forming groove 404. The movable support plate 801 is circumferentially mounted with multiple second grinding motors 805, and the output end of each second grinding motor 805 is mounted with a mounting hole forming column 806 that can extend into the corresponding mounting hole forming groove 405.

[0043] In this embodiment, the upper part of the axial hole forming column 804 and the mounting hole forming column 806 are each provided with a smooth section and a rough polished section located below it, and the axial length values ​​of the smooth section and the rough polished section are matched with the thickness value of the end cover body 901.

[0044] This embodiment also provides a casting method for producing an automobile motor end cover, comprising the following steps:

[0045] S1. Use the height adjustment nut 6 to adjust the initial position of the lower die 4. Use the mold closing push rod 7 to press the upper die 5 against the upper side of the lower die 4. The height adjustment push rod 802 in the grinding device 8 is activated, driving the shaft hole forming column 804 and the mounting hole forming column 806 through the movable support plate 801 to extend into the corresponding shaft hole forming groove 404 and the mounting hole forming groove 405 respectively.

[0046] S2. Fill the upper mold 5 and the lower mold 4 after the mold is closed with the casting liquid through the gate 506, and heat the casting liquid flowing into them with the first heating block 504 and the second heating block 505 so that it can smoothly fill the molding cavity;

[0047] S3, when the mold is cooled, the upper mold 5 is separated from the lower mold 4 by the mold closing push rod 7, the movable supporting plate 801 is moved up by the height adjusting push rod 802, the rough polishing sections of the shaft hole forming column 804 and the mounting hole forming column 806 respectively enter the corresponding shaft hole forming groove 404 and the mounting hole forming groove 405, the first polishing motor 803 and the second polishing motor 805 are started, and the polishing operation can be performed.

[0048] The components of the application cooperate, on the one hand, after casting, the center shaft hole and the edge mounting hole with smooth inner walls can be formed, without additional process for opening and polishing; on the other hand, during the casting process, the casting liquid flowing into the mold cavity can be heated, so that the poor flow caused by temperature loss is avoided, and the casting quality is improved.

[0049] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and use the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A casting processing equipment for producing automobile motor end cover, characterized in that: It includes a bottom plate, a top plate, a column, a lower mold, an upper mold, a height-adjusting nut, a mold-closing push rod and a grinding device. A column is installed between the four corners of the bottom plate and the top plate. The four columns are slidingly sleeved with a lower mold and an upper mold located above it. A threaded groove is provided at the lower part of the column, and a height-adjusting nut is sleeved on the outer side of the lower part of the column for supporting the lower mold. A mold-closing push rod for driving the upper mold to perform vertical displacement is installed on the top plate, and a grinding device is installed together with the lower mold and the bottom plate.

2. The casting processing equipment for producing automobile motor end covers according to claim 1, characterized in that: The automotive motor end cover workpiece includes an end cover body, one side of which is provided with a concentric reinforcing inner ring and a reinforcing outer ring, and a plurality of radial reinforcing ribs connected between the reinforcing inner ring and the reinforcing outer ring. The reinforcing inner ring, the reinforcing outer ring and the radial reinforcing ribs together constitute a reinforcing structure; The area inside the reinforcing inner ring serves as a first heating chamber, and the reinforcing inner ring, the reinforcing outer ring and the radial reinforcing ribs together form a plurality of second heating chambers; The end cover body is provided with a central axis hole at the center, and the end cover body is provided with a plurality of edge mounting holes evenly distributed on the periphery of the reinforced outer ring.

3. The casting processing equipment for producing automobile motor end covers according to claim 2, characterized in that: The lower mold includes a lower module, and the four corners of the lower module are provided with first guide column holes that cooperate with the columns. The upper end of the lower module is provided with a lower mold cavity that cooperates with the shape of the end cover body. The lower module is provided with an axis hole forming groove at the center of the bottom surface of the lower mold cavity, and the lower module is provided with multiple mounting hole forming grooves evenly distributed on the periphery of the bottom surface of the lower mold cavity.

4. The casting processing equipment for producing automobile motor end covers according to claim 3, characterized in that: The upper mold includes an upper module, and second guide column holes that cooperate with the columns are opened at the four corners of the upper module. The lower end of the upper module is opened inward with an upper mold cavity that cooperates with the thickness of the reinforcing structure. The upper module is located at the center of the top surface of the upper mold cavity and is provided with a first heating block that cooperates with the shape of the first heating cavity. The upper module is located at the periphery of the top surface of the upper mold cavity and is evenly provided with multiple second heating blocks that cooperate with the shape of the second heating cavity. The upper end of the upper module is provided with multiple gates connected to the outer edge area of ​​the upper mold cavity.

5. The casting processing equipment for producing automobile motor end covers according to claim 4, characterized in that: Electric heaters are built into the first heating block and the second heating block.

6. The casting processing equipment for producing automobile motor end covers according to claim 5, characterized in that: The grinding device includes a height-adjusting push rod, a movable support plate, a first grinding motor, an axial hole forming column, a second grinding motor and a mounting hole forming column. The cylinder body of the height-adjusting push rod is fixed on the base plate. The movable end of the height-adjusting push rod supports the movable support plate. The first grinding motor is installed at the center of the movable support plate. The output end of the first grinding motor is installed with an axial hole forming column that can extend into the axial hole forming groove. The movable support plate is circumferentially installed with multiple second grinding motors. The output end of the second grinding motor is installed with a mounting hole forming column that can extend into the corresponding mounting hole forming groove.

7. The casting processing equipment for producing automobile motor end covers according to claim 6, characterized in that: The upper part of each of the axial hole forming column and the mounting hole forming column is provided with a smooth section and a rough polished section located below the smooth section. The axial length values ​​of the smooth section and the rough polished section match the thickness value of the end cover body.

8. A casting method for producing an automobile motor end cover, implemented based on the casting equipment for producing an automobile motor end cover according to claim 7, characterized in that: The steps include: S1. Use the height adjustment nut to adjust the initial position of the lower die, use the mold closing push rod to press the upper die against the upper side of the lower die, and start the height adjustment push rod in the grinding device. The shaft hole forming column and the mounting hole forming column are driven by the movable support plate to extend into the corresponding shaft hole forming groove and mounting hole forming groove respectively. S2, using the gate to fill the casting liquid into the upper mold and the lower mold after the mold is closed, and using the first heating block and the second heating block to heat the casting liquid flowing into them so that it can smoothly fill the molding cavity; S3. After the mold cools down, the upper mold and the lower mold are separated by the mold closing push rod, and the movable support plate is moved up by the height adjustment push rod, so that the rough grinding sections of the shaft hole forming column and the mounting hole forming column enter the corresponding shaft hole forming groove and the mounting hole forming groove, and the first grinding motor and the second grinding motor are started to carry out the grinding operation.

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