Die-casting mold for lightweight automotive engine oil pump housing

Abstract

This invention belongs to the field of non-ferrous metal casting technology for automotive parts, specifically a die-casting mold for a lightweight automotive engine oil pump housing. The mold includes a lower mold base, with support blocks fixed at each of the four corners of the lower mold base's top. Guide pillars are fixed to the top of each support block. A fixed mold is positioned above the lower mold base, with an injection hole at its top. A mold core is positioned at the top of the lower mold base. Multiple cylinders are evenly spaced on the outer side of the lower mold base, with templates mounted on the output shaft ends of the cylinders. Three sets of lifting baffles are positioned on the side of each support block near the mold core. A rotating plate is rotatably connected inside the lower mold base below the lifting baffles. A motor is positioned on one side of the lower mold base. By rotating the rotating plate at different angles, a corresponding number of lifting baffles are raised from inside the lower mold base to match the current template. The distance the first lead screw moves, driving the moving seat, is automatically adjusted according to the template size, thereby enabling the entire mold to quickly adjust to a state suitable for the current template size.

Description

Technical Field

[0001] This invention belongs to the field of non-ferrous metal casting technology for automotive parts, specifically the die-casting mold for lightweight automotive engine oil pump housing. Background Technology

[0002] With the continuous advancement of automotive technology, the number of automotive parts has gradually increased, leading to an increase in the overall weight of the vehicle and consequently, an increase in the energy consumption required for vehicle operation. Therefore, it is necessary to carry out lightweight treatment of automotive parts. Among them, the engine oil pump housing is made of aluminum alloy. Aluminum alloy has the advantages of high strength and light weight. The shape of the oil pump housing can be die-cast in one piece. One-piece die-casting can reduce the number of installation joints, thereby reducing the weight of the connecting parts. Therefore, a special die-casting mold is used.

[0003] Currently, in the production and processing of automotive engine oil pump housings, die casting machines are used for die casting. A die casting machine consists of modules such as a mold clamping mechanism, an injection mechanism, a hydraulic system, and a cooling system. The mold clamping mechanism includes structures such as molds and clamping cylinders. The injection mechanism includes a heating device and an injection device. At the start of die casting, aluminum alloy raw materials for die casting are loaded into the heating device and melted into a molten metal state. The molten metal enters the injection device to await die casting. Simultaneously, the clamping cylinder pushes the combined mold and the template to assemble into a complete moving mold. Then, the hydraulic system pushes the moving mold towards the fixed mold side to close, forming a complete mold set. After mold closure, the injection device squeezes the molten metal inside through the die casting hole of the fixed mold and presses it into the interior of the mold. The cooling system cools the entire mold, allowing the molten metal inside to cool and solidify. Once the molten metal inside the mold has solidified, the hydraulic system separates the moving mold from the fixed mold. After separation, the clamping cylinder pulls multiple combined molds away from the outside of the template, placing the automotive engine oil pump housing on the template. The housing can then be removed, completing the die casting process.

[0004] During the die-casting process, the shape of each type of oil pump housing is different, and the molds used are also different. Therefore, processing different types of oil pump housings requires changing the production line. During the change, the current production line needs to be shut down, which increases the cost of production equipment, makes the operation more complicated, and affects the efficiency of die casting.

[0005] Therefore, the present invention provides a die-casting mold for a lightweight automotive engine oil pump housing. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The die-casting mold for the lightweight automotive engine oil pump housing of the present invention includes a lower mold base, support blocks are fixed at the four corners of the top of the lower mold base, guide posts are fixed at the top of the support blocks, a fixed mold is provided above the lower mold base, an injection hole is opened at the top of the fixed mold, a mold core is provided at the top of the lower mold base, and multiple cylinders are equally spaced on the outer side of the lower mold base. A template is installed at the end of the output shaft of the cylinder, and the template can slide between adjacent support blocks on both sides. Each of the support blocks has three sets of lifting baffles on the side near the mold core. The three sets of lifting baffles are stacked and pressed against each other. The lifting baffles are slidably connected to the inside of the lower mold base. The lower mold base has a rotating plate rotatably connected to the inside below the lifting baffles. A motor is provided on one side of the lower mold base. The motor can drive the rotating plate to rotate, and the rotating plate can drive three sets of lifting baffles to extend out from the inside of the lower mold base in sequence.

[0008] Preferably, a lifting arm is fixed to the bottom end of the lifting baffle, and a second lead screw is internally threaded onto the lifting arm; When the rotating plate rotates, it drives the lifting arm to raise the lifting baffle.

[0009] Preferably, a first toothed ring is fixed to the top of the rotating plate, a second toothed ring is fixed inside the first toothed ring at the top of the rotating plate, and a third toothed ring is fixed inside the second toothed ring at the top of the rotating plate. The lifting arms at the bottom of the three sets of lifting baffles are matched with the positions of the first, second, and third toothed rings. The first gear under the inner lifting baffle can mesh with the first toothed ring, the first gear under the middle lifting baffle can mesh with the second toothed ring, and the first gear under the outer lifting baffle can mesh with the third toothed ring.

[0010] Preferably, the teeth on the outer sides of the first and second toothed rings are staggered, and the teeth on the outer sides of the second and third toothed rings are staggered.

[0011] Preferably, multiple support plates are fixed at equal intervals on the outer side of the lower mold base, a first lead screw is rotatably connected inside the support plate, a movable seat is slidably connected to the top of the support plate, the movable seat is threadedly connected to the first lead screw, and the cylinder is installed on one side of the movable seat. The rotating plate can drive the first lead screw to rotate.

[0012] Preferably, a transmission rod is rotatably connected inside the lower mold base, a third gear is fixed at the bottom end of the transmission rod, the third gear meshes with the outer side of the rotating plate, a bevel gear is fixed at the top end of the transmission rod, and a bevel gear is also fixed at one end of the first lead screw, and the two bevel gears mesh with each other.

[0013] Preferably, a gear is fixed in the middle of the transmission rod, a second gear is meshed with one side of the top of the gear, a sleeve is fixed on one side of the second gear, the sleeve is rotatably connected to the lower mold base, and an insert block that matches the internal shape of the sleeve is fixed at the end of the motor shaft, the insert block can be inserted into the sleeve.

[0014] Preferably, a mounting bracket is fixed to one side of the lower mold base, an electric telescopic rod is mounted on one side of the mounting bracket, a push frame is fixed to the output shaft end of the electric telescopic rod, and the motor is mounted on one side of the push frame.

[0015] Preferably, a guide bar is fixed inside the lower mold base above the third gear, and a pair of clamping blocks are slidably connected above the guide bar. A clamping groove is opened on the side of the clamping block near the transmission rod, and a slider is fixed at the top of the clamping groove. A pair of push plates are fixed on one side of the push frame, and a guide groove is opened inside the push plate. The slider can slide inside the guide groove. The clamping groove can be fitted onto the outside of the transmission rod.

[0016] Preferably, distance sensors are mounted on both sides of the support plate near the motor via brackets, and the distance sensors are capable of measuring the width of the template.

[0017] The beneficial effects of this invention are as follows: 1. The die-casting mold for the lightweight automotive engine oil pump housing of the present invention uses a rotating plate to rotate at different angles to drive a corresponding number of lifting baffles to rise from the inside of the lower mold base to match the current template. The distance that the first lead screw drives the moving seat to move is automatically adjusted according to the size of the template, and the number of lifting baffles can be linked to achieve the goal of quickly adjusting the mold as a whole to a state suitable for the current template size.

[0018] 2. The die-casting mold for the lightweight automotive engine oil pump housing of the present invention uses an electric telescopic rod to drive a motor, which in turn moves a clamping block. This allows the clamping block to clamp the transmission rod when the motor is separated from the sleeve, and to separate the clamping block from the transmission rod when the motor is connected to the sleeve, thus maintaining the stability of the transmission rod during use. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the lower mold base structure in this invention; Figure 3 This is a schematic diagram of the internal structure of the lower mold base in this invention; Figure 4 This is a schematic diagram of the rotating plate structure in this invention; Figure 5 This is a schematic diagram of the lifting baffle structure in this invention; Figure 6 This is a schematic diagram of the cylinder structure in this invention; Figure 7 This is a schematic diagram of the transmission rod structure in this invention; Figure 8 This is a schematic diagram of the clamping block structure in this invention.

[0021] In the diagram: 1. Lower mold base; 11. Support block; 111. Guide column; 12. Cylinder; 121. Moving seat; 122. Support plate; 123. First lead screw; 124. Distance sensor; 13. Template; 131. Mold core; 14. Rotating plate; 141. Lifting baffle; 142. First gear ring; 143. Second gear ring; 144. Third gear ring; 145. Lifting arm; 146. Second lead screw; 147. 15. First gear; 15. Motor; 151. Electric telescopic rod; 152. Push frame; 153. Mounting frame; 154. Push plate; 155. Guide groove; 156. Clamping block; 157. Guide strip; 158. Clamping groove; 159. Slider; 16. Transmission rod; 161. Gear plate; 162. Second gear; 163. Sleeve; 164. Bevel gear; 165. Third gear; 2. Fixed mold; 21. Injection hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 7 As shown, the die-casting mold for the lightweight automotive engine oil pump housing of the present invention includes a lower mold base 1. Support blocks 11 are fixed at the four corners of the top of the lower mold base 1. Guide posts 111 are fixed at the top of the support blocks 11. A fixed mold 2 is provided above the lower mold base 1. An injection hole 21 is opened at the top of the fixed mold 2. A mold core 131 is provided at the top of the lower mold base 1. Multiple cylinders 12 are arranged at equal intervals on the outer side of the lower mold base 1. A template 13 is installed at the end of the output shaft of the cylinder 12. The template 13 can slide between adjacent support blocks 11 on both sides. Each support block 11 is provided with three sets of lifting baffles 141 on the side near the mold core 131. The three sets of lifting baffles 141 are stacked and pressed against each other. The lifting baffles 141 are slidably connected to the inside of the lower mold base 1. The lower mold base 1 is rotatably connected to a rotating plate 14 below the lifting baffles 141. A motor 15 is provided on one side of the lower mold base 1. Among them, the motor 15 can drive the rotating plate 14 to rotate, and the rotating plate 14 can drive three sets of lifting baffles 141 to extend out from the inside of the lower mold base 1 in sequence. In the production and processing of automotive parts, aluminum alloy parts are often cast using integrated die casting. Die casting is used in the production of automotive engine oil pump housings. During die casting, the fixed mold 2 is installed on one side of the die casting machine, and the injection hole 21 is connected to the injection head of the die casting machine. Then, the lower mold base 1 is installed on the moving mold mounting plate of the die casting machine. Die casting then begins. The die casting machine pushes the lower mold base 1 towards the fixed mold 2 to close the mold. Simultaneously, the cylinder 12 pushes the template 13 and the mold core 131 to close. When the lower mold base 1 and the fixed mold 2 are closed, the template 1... 3. A cavity is formed between the mold core 131 and the fixed mold 2. The cavity is only connected to the injection hole 21. The die casting machine injects molten aluminum alloy liquid into the cavity through the injection hole 21. Then, wait for the aluminum alloy liquid to cool and solidify. After solidification, the die casting machine drives the lower mold base 1 to move in the opposite direction and separate from the fixed mold 2. Then, start the cylinder 12 to pull the template 13 to separate from the mold core 131. At this time, the die-cast aluminum alloy oil pump housing can remain outside the mold core 131. Then, remove the aluminum alloy oil pump housing from the outside of the mold core 131 to complete one die casting. In this way, the aluminum alloy oil pump housing can be continuously die-cast by running multiple times. When die-casting different automotive fuel pump housings, the external shape, internal shape, and overall dimensions of the housings will vary. Therefore, it is necessary to replace the template 13, mold core 131, and inner mold of the fixed mold 2 with corresponding shapes and sizes. After replacement, the positions of the mold core 131 and the inner mold of the fixed mold 2 are fixed. However, the template 13 needs to move between the support blocks 11 during use. The support blocks 11 guide and limit its movement. But after replacement, the outer diameter of the template 13 changes, causing the support blocks 11 to fail to guide the template 13 properly. Therefore, the support blocks 11... Three sets of lifting baffles 141 are provided on the inner side. When the template 13 is replaced, the drive motor 15 rotates according to its outer diameter, which drives the rotating plate 14 to rotate. The rotation of the rotating plate 14 drives the lifting baffles 141 to rise. The lifting baffles 141 rise in sequence from the inside to the outside. The smaller the outer diameter of the template 13, the larger the rotation angle of the rotating plate 14, so that more lifting baffles 141 rise. This allows the lifting baffles 141 to guide the template 13 with the corresponding outer diameter, thereby facilitating the replacement of the template 13, the mold core 131 and the internal mold of the fixed mold 2 according to different automotive oil pump housings, reducing the number of parts to be replaced and reducing production costs.

[0024] like Figures 1 to 5 As shown, a lifting arm 145 is fixed to the bottom end of the lifting baffle 141, and a second lead screw 146 is threadedly connected to the inside of the lifting arm 145. When the rotating plate 14 rotates, it drives the lifting arm 145 to raise the lifting baffle 141. When the lifting baffle 141 needs to be raised, the rotating plate 14 drives the second lead screw 146 to rotate. The second lead screw 146 drives the lifting arm 145 to raise the lifting baffle 141 upward, which can make the lifting baffle 141 rise more stably. And when the second lead screw 146 stops rotating, the lifting arm 145 is kept fixed, making the die casting process more stable.

[0025] like Figures 1 to 6 As shown, a first toothed ring 142 is fixed to the top of the rotating plate 14, a second toothed ring 143 is fixed inside the first toothed ring 142, and a third toothed ring 144 is fixed inside the second toothed ring 143. The lifting arms 145 at the bottom of the three sets of lifting baffles 141 are matched with the positions of the first toothed ring 142, the second toothed ring 143, and the third toothed ring 144. The first gear 147 below the inner lifting baffle 141 can mesh with the first toothed ring 142, the first gear 147 below the middle lifting baffle 141 can mesh with the second toothed ring 143, and the first gear 147 below the outer lifting baffle 141 can mesh with the third toothed ring 144. When the rotating plate 14 rotates, it drives the first gear ring 142, the second gear ring 143, and the third gear ring 144 to rotate simultaneously. During rotation, the first gear ring 142 drives the inner first gear 147 to rotate. At this time, the first gear 147 drives the lifting arm 145 to rise through the second lead screw 146, thereby raising the inner lifting baffle 141. When the inner lifting baffle 141 rises to the same height as the support block 11, the first gear ring 142 and the first gear 147 no longer mesh. Then, the second gear ring 143 drives the middle lifting baffle 141 to rise in the same process, and the third gear ring 144 drives the outer lifting baffle 141 to rise in the same process. In this way, the rotating plate 14 rotates at different angles to drive different numbers of lifting baffles 141 to rise, which is more convenient for adjustment during use.

[0026] like Figures 1 to 6 As shown, the teeth on the outer sides of the first toothed ring 142 and the second toothed ring 143 are staggered, and the teeth on the outer sides of the second toothed ring 143 and the third toothed ring 144 are staggered. By using an interlocking tooth mechanism, when the teeth of the first toothed ring 142 separate from the inner first gear 147, the teeth of the second toothed ring 143 mesh with the middle first gear 147; when the teeth of the second toothed ring 143 separate from the inner first gear 147, the teeth of the third toothed ring 144 mesh with the middle first gear 147, thereby enabling the three sets of lifting baffles 141 to rise sequentially, and to stop rising when they reach the same height as the support block 11.

[0027] like Figures 1 to 6 As shown, multiple support plates 122 are fixed at equal intervals on the outer side of the lower mold base 1. A first lead screw 123 is rotatably connected inside the support plate 122. A movable seat 121 is slidably connected to the top of the support plate 122. The movable seat 121 is threadedly connected to the first lead screw 123. A cylinder 12 is installed on one side of the movable seat 121. Among them, the rotating plate 14 can drive the first lead screw 123 to rotate; When replacing template 13, to facilitate disassembly and assembly, template 13 needs to be moved out of the lower mold base 1. At this time, cylinder 12 is retracted to its shortest length. Then, rotating plate 14 rotates in the opposite direction to return lifting baffle 141 to the lower mold base 1, and drives first lead screw 123 to move moving seat 121 to the outermost side of support plate 122. This facilitates the disassembly and installation of template 13 of the corresponding size at the end of cylinder 12. After installation, rotating plate 14 rotates in the forward direction to drive first lead screw 123 to move moving seat 121 towards the middle of lower mold base 1. When the size of template 13 is different, cylinder 12 follows the original... The distance of the template 13 being pushed forward will make the pushing distance of the template 13 shorter or longer. When it is shorter, the cylinder 12 cannot fully extend the rod body. When it is longer, the cylinder 12 cannot push the template 13 to the position where it fits with the mold core 131. Therefore, the first lead screw 123 will be driven by the rotating plate 14. The larger the size of the template 13, the smaller the rotation angle of the rotating plate 14. At this time, the number of lifting baffles 141 extending is less. The distance that the first lead screw 123 drives the cylinder 12 to move downward to the middle of the mold base 1 is also reduced. Thus, the moving distance of the cylinder 12 is matched with the lifting baffle 141, making it easier to adjust after changing templates 13 of different sizes.

[0028] like Figures 1 to 7 As shown, a transmission rod 16 is rotatably connected inside the lower mold base 1. A third gear 165 is fixed at the bottom end of the transmission rod 16. The third gear 165 meshes with the outer side of the rotating plate 14. A bevel gear 164 is fixed at the top end of the transmission rod 16. A bevel gear 164 is also fixed at one end of the first lead screw 123. The two bevel gears 164 mesh with each other. When the rotating plate 14 rotates, it drives the third gear 165 to rotate. The third gear 165 drives the bevel gear 164 to rotate through the transmission rod 16. The bevel gear 164 drives the bevel gear 164 of the first lead screw 123 to rotate, so that the first lead screw 123 can rotate synchronously, thereby realizing the linkage between the moving distance of the moving seat 121 and the extension number of the lifting baffle 141.

[0029] like Figures 1 to 7 As shown, a gear 161 is fixed in the middle of the transmission rod 16, a second gear 162 is meshed with one side of the top of the gear 161, a sleeve 163 is fixed on one side of the second gear 162, the sleeve 163 is rotatably connected to the lower mold base 1, and an insert block that matches the internal shape of the sleeve 163 is fixed at the end of the rotating shaft of the motor 15, and the insert block can be inserted into the sleeve 163. When the motor 15 rotates, the end plug is inserted into the sleeve 163 and drives the sleeve 163 to rotate. The sleeve 163 drives the gear disk 161 to rotate through the second gear 162. The gear disk 161 drives the transmission rod 16 to rotate, which allows the transmission rod 16 to drive the rotating plate 14 through the third gear 165 and drive the first lead screw 123 through the bevel gear 164, making it easier to synchronously drive the rotating plate 14 and the first lead screw 123 to rotate.

[0030] like Figures 1 to 7 As shown, a mounting bracket 153 is fixed on one side of the lower mold base 1, an electric telescopic rod 151 is mounted on one side of the mounting bracket 153, a pusher 152 is fixed to the end of the output shaft of the electric telescopic rod 151, and a motor 15 is mounted on one side of the pusher 152. To prevent the heat from the lower mold base 1 from affecting the motor 15, the motor 15 needs to be separated from the sleeve 163 when not in use. Therefore, when in use, the electric telescopic rod 151 pushes the pusher 152, which in turn moves the motor 15 so that the plug of the motor 15 is inserted into the sleeve 163. At this time, it can be used. When not in use, the electric telescopic rod 151 drives the pusher 152 to separate the motor 15 from the sleeve 163. There is heat insulation material between the pusher 152 and the motor 15, which effectively reduces heat transfer and thus reduces the impact of heat on the motor 15.

[0031] like Figures 1 to 8 As shown, a guide bar 157 is fixed inside the lower mold base 1 above the third gear 165. A pair of clamping blocks 156 are slidably connected above the guide bar 157. A clamping groove 158 is opened on the side of the clamping block 156 near the transmission rod 16. A slider 159 is fixed at the top of the clamping groove 158. A pair of push plates 154 are fixed on one side of the push frame 152. A guide groove 155 is opened inside the push plate 154. The slider 159 can slide inside the guide groove 155. The clamping groove 158 can be sleeved on the outside of the transmission rod 16; During the die-casting process of the lower mold base 1 and the fixed mold 2, it is necessary to keep the first lead screw 123 in a stable state. Therefore, a pusher 152 is set up to push the motor 15 and drive the push plate 154 to move into the lower mold base 1. At this time, the push plate 154 drives the slider 159 through the guide groove 155 to make the clamping block 156 slide to both sides. At this time, the clamping groove 158 is separated from the transmission rod 16. When the motor 15 is separated from the sleeve 163, the pusher 152 drives the motor 15 to move. At this time, the pusher 152 pulls the two push plates 154, so that the push plates 154 drive the slider 159 through the guide groove 155. The slider 159 drives the two clamping blocks 156 to slide towards the transmission rod 16. At this time, the clamping groove 158 clamps the transmission rod 16, which can fix the transmission rod 16, thereby ensuring that the first lead screw 123 is in a stable state during use.

[0032] like Figures 1 to 6 As shown, distance sensors 124 are mounted on both sides of the support plate 122 near the motor 15 via brackets. The distance sensors 124 can measure the width of the template 13. When installing template 13, the distance sensor 124 measures the outer diameter of one side of template 13, thereby determining the size of the current template 13 based on the distance. Multiple templates 13 are of the same size, which makes it easy to control the number of rotations of motor 15, adjust the number of lifting baffles 141 and the moving distance of moving seat 121.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for a lightweight automotive engine oil pump housing, characterized in that: The device includes a lower mold base, with support blocks fixed at the four corners of the top of the lower mold base. Guide posts are fixed at the top of the support blocks. A fixed mold is provided above the lower mold base, with an injection hole at the top of the fixed mold. A mold core is provided at the top of the lower mold base. Multiple cylinders are evenly spaced on the outer side of the lower mold base. A template is installed at the end of the output shaft of each cylinder. The template can slide between adjacent support blocks on both sides. Each of the support blocks has three sets of lifting baffles on the side near the mold core. The three sets of lifting baffles are stacked and pressed against each other. The lifting baffles are slidably connected to the inside of the lower mold base. The lower mold base has a rotating plate rotatably connected to the inside below the lifting baffles. A motor is provided on one side of the lower mold base. The motor can drive the rotating plate to rotate, and the rotating plate can drive three sets of lifting baffles to extend out from the inside of the lower mold base in sequence.

2. The die-casting mold for the lightweight automotive engine oil pump housing according to claim 1, characterized in that: The bottom end of the lifting baffle is fixed with a lifting arm, and the lifting arm is internally threaded with a second lead screw; When the rotating plate rotates, it drives the lifting arm to raise the lifting baffle.

3. The die-casting mold for the lightweight automotive engine oil pump housing according to claim 2, characterized in that: A first toothed ring is fixed to the top of the rotating plate, a second toothed ring is fixed inside the first toothed ring, and a third toothed ring is fixed inside the second toothed ring. The lifting arms at the bottom of the three sets of lifting baffles are matched with the positions of the first, second, and third toothed rings. The first gear under the inner lifting baffle can mesh with the first toothed ring, the first gear under the middle lifting baffle can mesh with the second toothed ring, and the first gear under the outer lifting baffle can mesh with the third toothed ring.

4. The die-casting mold for the lightweight automotive engine oil pump housing according to claim 3, characterized in that: The teeth on the outer sides of the first and second toothed rings are staggered, and the teeth on the outer sides of the second and third toothed rings are staggered.

5. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 3, characterized in that: Multiple support plates are fixed at equal intervals on the outer side of the lower mold base. A first lead screw is rotatably connected inside the support plate. A movable seat is slidably connected to the top of the support plate. The movable seat is threadedly connected to the first lead screw. The cylinder is installed on one side of the movable seat. The rotating plate can drive the first lead screw to rotate.

6. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 5, characterized in that: The lower mold base is internally rotatably connected to a transmission rod. A third gear is fixed at the bottom end of the transmission rod and meshes with the outer side of the rotating plate. A bevel gear is fixed at the top end of the transmission rod, and a bevel gear is also fixed at one end of the first lead screw. The two bevel gears mesh with each other.

7. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 6, characterized in that: A gear is fixed in the middle of the transmission rod, and a second gear is meshed with one side of the top of the gear. A sleeve is fixed on one side of the second gear. The sleeve is rotatably connected to the lower mold base. A plug that matches the internal shape of the sleeve is fixed at the end of the motor shaft. The plug can be inserted into the sleeve.

8. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 7, characterized in that: A mounting bracket is fixed to one side of the lower mold base, an electric telescopic rod is mounted on one side of the mounting bracket, a push frame is fixed to the output shaft end of the electric telescopic rod, and the motor is mounted on one side of the push frame.

9. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 8, characterized in that: Inside the lower mold base, above the third gear, a guide bar is fixed. Above the guide bar, a pair of clamping blocks are slidably connected. The clamping blocks have a clamping groove on the side near the transmission rod. A slider is fixed at the top of the clamping groove. On one side of the push frame, a pair of push plates are fixed. The push plates have guide grooves inside, and the slider can slide inside the guide grooves. The clamping groove can be fitted onto the outside of the transmission rod.

10. The die-casting mold for a lightweight automotive engine oil pump housing according to claim 9, characterized in that: Distance sensors are mounted on both sides of the support plate near the motor via brackets, and the distance sensors are capable of measuring the width of the template.

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